Specification of RTE

AUTOSAR CP Release 4.3.0

Document Title Specification of RTE

Document Owner AUTOSAR
Document Responsibility AUTOSAR
Document Identification No 084
Document Classification Standard

Document Status Final

Part of AUTOSAR Standard Classic Platform
Part of Standard Release 4.3.0

Document Change History

Date Release Changed by Description

AUTOSAR Service-based bypass support

2016-11-30 4.3.0 Release Minor corrections / clarifications /
Management editorial changes; For details please
refer to the ChangeDocumentation
Debugging support marked as
AUTOSAR obsolete
2015-07-31 4.2.2 Release Minor corrections / clarifications /
Management editorial changes; For details please
refer to the ChangeDocumentation
Efficient NV data handling
AUTOSAR Introduction of data transformation
2014-10-31 4.2.1 Release Support for variable-size Arrays of
Management arbitrary data types
Various fixes and clarifications
AUTOSAR
2014-03-31 4.1.3 Release Various fixes and clarifications
Management
AUTOSAR
2013-10-31 4.1.2 Release Various fixes and clarifications
Management

1 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Adapted to new version of meta

model
Bypass support added
AUTOSAR Support for parameter serialization of
2013-03-15 4.1.1 client-server communication added
Administration
Support for inter-partition
communication of BSW modules
added
General consolidation and bug fixes
Adapted to new version of meta
model
Support for mixed compu methods
with categories SCALE_
LINEAR_AND_TEXTTABLE and
AUTOSAR SCALE_RATIONAL_AND_
2011-12-22 4.0.3 TEXTTABLE added
Administration
Support for compatibility of partial
record types added
Consolidation of signal invalidation,
data conversion, and out-of-range
handling
General consolidation and bug fixes
Adapted to new version of meta
model
Backward compatibility to implicit
communication behavior of
AUTOSAR 2.1/3.0/3.1 added
AUTOSAR Support of inter-runnable variables
2011-04-15 4.0.2
Administration extended to composite data types
Clarification which API calls shall be
implemented as macro accesses to
the component data structure in
compatibility mode
General consolidation and bug fixes
Adapted to new version of meta
model
RTE and Basic Software Scheduler
AUTOSAR merged
2009-12-18 4.0.1
Administration Support of multi core architectures
added
Re-scaling at ports added
API enhancements added

2 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

updated VFB-Tracing
AUTOSAR unconnected R-Ports are supported
2009-02-04 3.1.2 incompatible function declarations
Administration
fixed
RTE server mapping updated
AUTOSAR
2008-02-01 3.0.2 Layout adaptations
Administration
Adapted to new version of meta
model
"RTE ECU Configuration" added
AUTOSAR Calibration and measurement
2007-12-21 3.0.1
Administration revised
Document meta information
extended
Small layout adaptations made
AUTOSAR "Advice for users" revised
2007-01-24 2.1.15
Administration "Revision Information" added
Adapted to new version of meta
model
New feature debouncing of runnable
activation
AUTOSAR New feature runnable activation
2006-11-28 2.1 offset
Administration
Measurement and Calibration
added
Semantics of implicit communication
enhanced
Legal disclaimer revised
AUTOSAR
2006-05-16 2.0 Initial release
Administration

3 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Disclaimer

This specification and the material contained in it, as released by AUTOSAR, is for the
purpose of information only. AUTOSAR and the companies that have contributed to it
shall not be liable for any use of the specification.
The material contained in this specification is protected by copyright and other types of
Intellectual Property Rights. The commercial exploitation of the material contained in
this specification requires a license to such Intellectual Property Rights.
This specification may be utilized or reproduced without any modification, in any form
or by any means, for informational purposes only. For any other purpose, no part of
the specification may be utilized or reproduced, in any form or by any means, without
permission in writing from the publisher.
The AUTOSAR specifications have been developed for automotive applications only.
They have neither been developed, nor tested for non-automotive applications.
The word AUTOSAR and the AUTOSAR logo are registered trademarks.

Advice for users

AUTOSAR specifications may contain exemplary items (exemplary reference models,

"use cases", and/or references to exemplary technical solutions, devices, processes or
software).
Any such exemplary items are contained in the specifications for illustration purposes
only, and they themselves are not part of the AUTOSAR Standard. Neither their pres-
ence in such specifications, nor any later documentation of AUTOSAR conformance of
products actually implementing such exemplary items, imply that intellectual property
rights covering such exemplary items are licensed under the same rules as applicable
to the AUTOSAR Standard.

4 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Table of Contents
1 Introduction 23
1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.2 Dependency to other AUTOSAR specifications . . . . . . . . . . . . . 24
1.3 Acronyms and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . 25
1.4 Technical Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.5 Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
1.6 Requirements Tracing . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2 RTE Overview 63
2.1 The RTE in the Context of AUTOSAR . . . . . . . . . . . . . . . . . . . 63
2.2 AUTOSAR Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
2.2.1 AUTOSAR Software-components . . . . . . . . . . . . . . . 63
2.2.2 Basic Software Modules . . . . . . . . . . . . . . . . . . . . . 64
2.2.3 Communication . . . . . . . . . . . . . . . . . . . . . . . . . 65
2.2.3.1 Communication Paradigms . . . . . . . . . . . . . . 65
2.2.3.2 Communication Modes . . . . . . . . . . . . . . . . . 65
2.2.3.3 Static Communication . . . . . . . . . . . . . . . . . 66
2.2.3.4 Multiplicity . . . . . . . . . . . . . . . . . . . . . . . . 66
2.2.4 Concurrency . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
2.3 The RTE Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
2.4 Design Decisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
3 RTE Generation Process 69
3.1 Contract Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
3.1.1 RTE Contract Phase . . . . . . . . . . . . . . . . . . . . . . . 74
3.1.2 Basic Software Scheduler Contract Phase . . . . . . . . . . 75
3.2 PreBuild Data Set Contract Phase . . . . . . . . . . . . . . . . . . . . 76
3.3 Edit ECU Configuration of the RTE . . . . . . . . . . . . . . . . . . . . 76
3.4 Generation Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
3.4.1 Basic Software Scheduler Generation Phase . . . . . . . . . 77
3.4.2 RTE Generation Phase . . . . . . . . . . . . . . . . . . . . . 78
3.4.3 Basic Software Module Description generation . . . . . . . . 79
3.4.3.1 Bsw Module Description . . . . . . . . . . . . . . . . 80
3.4.3.2 Bsw Internal Behavior . . . . . . . . . . . . . . . . . 81
3.4.3.3 Bsw Implementation . . . . . . . . . . . . . . . . . . 82
3.5 PreBuild Data Set Generation Phase . . . . . . . . . . . . . . . . . . . 83
3.6 PostBuild Data Set Generation Phase . . . . . . . . . . . . . . . . . . 83
3.7 RTE Configuration interaction with other BSW Modules . . . . . . . . . 84
4 RTE Functional Specification 86
4.1 Architectural concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
4.1.2 RTE and Data Types . . . . . . . . . . . . . . . . . . . . . . . 87
4.1.3 RTE and AUTOSAR Software-Components . . . . . . . . . . 88

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 Specification of RTE
AUTOSAR CP Release 4.3.0

4.1.3.1 Hierarchical Structure of Software-Components . . . 89

4.1.3.2 Ports, Interfaces and Connections . . . . . . . . . . 90
4.1.3.3 Internal Behavior . . . . . . . . . . . . . . . . . . . . 91
4.1.3.4 Implementation . . . . . . . . . . . . . . . . . . . . . 95
4.1.4 Instantiation . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
4.1.4.1 Scope and background . . . . . . . . . . . . . . . . . 96
4.1.4.2 Concepts of instantiation . . . . . . . . . . . . . . . . 97
4.1.4.3 Single instantiation . . . . . . . . . . . . . . . . . . . 97
4.1.4.4 Multiple instantiation . . . . . . . . . . . . . . . . . . 98
4.1.5 RTE and AUTOSAR Services . . . . . . . . . . . . . . . . . . 99
4.1.6 RTE and ECU Abstraction . . . . . . . . . . . . . . . . . . . 100
4.1.7 RTE and Complex Device Driver . . . . . . . . . . . . . . . . 100
4.1.8 Basic Software Scheduler and Basic Software Modules . . . 101
4.1.8.1 Description of a Basic Software Module . . . . . . . 101
4.1.8.2 Basic Software Interfaces . . . . . . . . . . . . . . . 101
4.1.8.3 Basic Software Internal Behavior . . . . . . . . . . . 101
4.1.8.4 Basic Software Implementation . . . . . . . . . . . . 102
4.1.8.5 Multiple Instances of Basic Software Modules . . . . 102
4.1.8.6 AUTOSAR Services / ECU Abstraction / Complex
Device Drivers . . . . . . . . . . . . . . . . . . . . . 102
4.2 RTE and Basic Software Scheduler Implementation Aspects . . . . . . 103
4.2.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
4.2.2 OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
4.2.2.1 OS Objects . . . . . . . . . . . . . . . . . . . . . . . 106
4.2.2.2 Basic Software Schedulable Entities . . . . . . . . . 108
4.2.2.3 Runnable Entities . . . . . . . . . . . . . . . . . . . . 109
4.2.2.4 RTE Events . . . . . . . . . . . . . . . . . . . . . . . 109
4.2.2.5 BswEvents . . . . . . . . . . . . . . . . . . . . . . . 111
4.2.2.6 Mapping of Runnable Entities and Basic Software
Schedulable Entities to tasks (informative) . . . . . . 113
4.2.2.7 Monitoring of runnable execution time . . . . . . . . 119
4.2.2.8 TimingEvent activated runnables . . . . . . . . . . . 124
4.2.2.9 Synchronization of TimingEvent activated runnables 125
4.2.2.10 BackgroundEvent activated Runnable Entities and
BasicSoftware Scheduleable Entities . . . . . . . . . 126
4.2.2.11 InitEvent activated Runnable Entities . . . . . . . . . 126
4.2.3 Activation and Start of ExecutableEntitys . . . . . . . . 128
4.2.3.1 Activation by direct function call . . . . . . . . . . . . 135
4.2.3.2 Activation Offset for RunnableEntitys and
BswSchedulableEntitys . . . . . . . . . . . . . . 137
4.2.3.3 Provide activating RTE event . . . . . . . . . . . . . 138
4.2.4 Interrupt decoupling and notifications . . . . . . . . . . . . . 140
4.2.4.1 Basic notification principles . . . . . . . . . . . . . . 140
4.2.4.2 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . 141
4.2.4.3 Decoupling interrupts on RTE level . . . . . . . . . . 141
4.2.4.4 RTE and interrupt categories . . . . . . . . . . . . . 142

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 Specification of RTE
AUTOSAR CP Release 4.3.0

4.2.4.5 RTE and Basic Software Scheduler and BswExecu-

tionContext . . . . . . . . . . . . . . . . . . . . . 142
4.2.5 Data Consistency . . . . . . . . . . . . . . . . . . . . . . . . 143
4.2.5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . 143
4.2.5.2 Communication Patterns . . . . . . . . . . . . . . . . 145
4.2.5.3 Concepts . . . . . . . . . . . . . . . . . . . . . . . . 145
4.2.5.4 Mechanisms to guarantee data consistency . . . . . 146
4.2.5.5 Exclusive Areas . . . . . . . . . . . . . . . . . . . . . 148
4.2.5.6 InterRunnableVariables . . . . . . . . . . . . . . . . 151
4.2.6 Multiple trigger of Runnable Entities and Basic Software
Schedulable Entities . . . . . . . . . . . . . . . . . . . . . . . 154
4.2.7 Implementation of Parameter and Data Elements . . . . . . . 156
4.2.7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . 156
4.2.7.2 Compatibility rules . . . . . . . . . . . . . . . . . . . 156
4.2.7.3 Implementation of an interface element . . . . . . . 157
4.2.7.4 Initialization of VariableDataPrototypes . . . . 158
4.2.7.5 Initial value calculation . . . . . . . . . . . . . . . . . 158
4.2.8 Measurement and Calibration . . . . . . . . . . . . . . . . . 160
4.2.8.1 General . . . . . . . . . . . . . . . . . . . . . . . . . 160
4.2.8.2 Measurement . . . . . . . . . . . . . . . . . . . . . . 162
4.2.8.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . 169
4.2.8.4 Generation of McSupportData . . . . . . . . . . . . . 186
4.2.9 Access to NVRAM data . . . . . . . . . . . . . . . . . . . . . 203
4.2.9.1 General . . . . . . . . . . . . . . . . . . . . . . . . . 203
4.2.9.2 Usage of the NvBlockSwComponentType . . . . . . 204
4.2.9.3 Interface of the NvBlockSwComponentType . . . . . 209
4.2.9.4 Data Consistency . . . . . . . . . . . . . . . . . . . . 217
4.3 Communication Paradigms . . . . . . . . . . . . . . . . . . . . . . . . 217
4.3.1 Sender-Receiver . . . . . . . . . . . . . . . . . . . . . . . . . 218
4.3.1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 218
4.3.1.2 Receive Modes . . . . . . . . . . . . . . . . . . . . . 218
4.3.1.3 Multiple Data Elements . . . . . . . . . . . . . . . . 221
4.3.1.4 Multiple Receivers and Senders . . . . . . . . . . . . 222
4.3.1.5 Implicit and Explicit Data Reception and Transmission 223
4.3.1.6 Transmission Acknowledgement . . . . . . . . . . . 236
4.3.1.7 Communication Time-out . . . . . . . . . . . . . . . 237
4.3.1.8 Data Element Invalidation . . . . . . . . . . . . . . . 240
4.3.1.9 Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 245
4.3.1.10 Buffering . . . . . . . . . . . . . . . . . . . . . . . . . 246
4.3.1.11 Operation . . . . . . . . . . . . . . . . . . . . . . . . 249
4.3.1.12 Never received status for Data Element . . . . . . . 263
4.3.1.13 Update flag for Data Element . . . . . . . . . . . . 263
4.3.1.14 Dynamic data type . . . . . . . . . . . . . . . . . . . 264
4.3.1.15 Inter-ECU communication through TP . . . . . . . . 265
4.3.1.16 Inter-ECU communication of arrays of bytes . . . . . 266
4.3.1.17 Handling of acknowledgment events . . . . . . . . . 268

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 Specification of RTE
AUTOSAR CP Release 4.3.0

4.3.2 Client-Server . . . . . . . . . . . . . . . . . . . . . . . . . . . 270

4.3.2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 270
4.3.2.2 Multiplicity . . . . . . . . . . . . . . . . . . . . . . . . 272
4.3.2.3 Communication Time-out . . . . . . . . . . . . . . . 274
4.3.2.4 Port-Defined argument values . . . . . . . . . . . . . 276
4.3.2.5 Buffering . . . . . . . . . . . . . . . . . . . . . . . . . 277
4.3.2.6 Inter-ECU and Inter-Partition Response to Request
Mapping . . . . . . . . . . . . . . . . . . . . . . . . . 278
4.3.2.7 Parameter Serialization . . . . . . . . . . . . . . . . 280
4.3.2.8 Operation . . . . . . . . . . . . . . . . . . . . . . . . 281
4.3.3 SWC internal communication . . . . . . . . . . . . . . . . . . 286
4.3.3.1 Inter Runnable Variables . . . . . . . . . . . . . . . . 286
4.3.4 Inter-Partition communication . . . . . . . . . . . . . . . . . . 287
4.3.4.1 Inter partition data communication using IOC . . . . 288
4.3.4.2 Inter partition data communication using Basic Soft-
ware Scheduler . . . . . . . . . . . . . . . . . . . . . 289
4.3.4.3 Accessing COM from slave core in multicore config-
uration . . . . . . . . . . . . . . . . . . . . . . . . . . 290
4.3.4.4 Signaling and control flow support for inter partition
communication . . . . . . . . . . . . . . . . . . . . . 294
4.3.4.5 Trusted Functions . . . . . . . . . . . . . . . . . . . . 294
4.3.4.6 Memory Protection and Pointer Type Parameters in
RTE API . . . . . . . . . . . . . . . . . . . . . . . . . 295
4.3.5 PortInterface Element Mapping and Data Conversion . . . . 296
4.3.5.1 PortInterface Element Mapping . . . . . . . . . . . . 296
4.3.6 Network Representation . . . . . . . . . . . . . . . . . . . . . 299
4.3.6.1 Network Representation with no data transformation 299
4.3.6.2 Network Representation with data transformation . . 300
4.3.7 Data Conversion . . . . . . . . . . . . . . . . . . . . . . . . . 301
4.3.8 Range Checks during Runtime . . . . . . . . . . . . . . . . . 307
4.4 Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
4.4.1 Mode User . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
4.4.2 Mode Manager . . . . . . . . . . . . . . . . . . . . . . . . . . 317
4.4.3 Refinement of the semantics of ModeDeclarations and
ModeDeclarationGroups . . . . . . . . . . . . . . . . . . 319
4.4.4 Order of actions taken by the RTE / Basic Software Scheduler
upon interception of a mode switch notification . . . . . . . . 319
4.4.5 Assignment of mode machine instances to RTE and Basic
Software Scheduler . . . . . . . . . . . . . . . . . . . . . . . 326
4.4.6 Initialization of mode machine instances . . . . . . . . . . . . 327
4.4.7 Notification of mode switches . . . . . . . . . . . . . . . . . . 329
4.4.8 Mode switch acknowledgment . . . . . . . . . . . . . . . . . 332
4.4.9 Mode switch error handling . . . . . . . . . . . . . . . . . . . 333
4.4.9.1 Mode User gets terminated . . . . . . . . . . . . . . 333
4.4.9.2 Mode Manager gets terminated . . . . . . . . . . . . 336
4.4.10 Mapping of ModeDeclarations . . . . . . . . . . . . . . . . . 337

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AUTOSAR CP Release 4.3.0

4.5 External and Internal Trigger . . . . . . . . . . . . . . . . . . . . . . . . 340

4.5.1 External Trigger Event Communication . . . . . . . . . . . . 340
4.5.1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 340
4.5.1.2 Trigger Sink . . . . . . . . . . . . . . . . . . . . . . . 342
4.5.1.3 Trigger Source . . . . . . . . . . . . . . . . . . . . . 343
4.5.1.4 Multiplicity . . . . . . . . . . . . . . . . . . . . . . . . 344
4.5.1.5 Synchronized Trigger . . . . . . . . . . . . . . . . . . 345
4.5.2 Inter Runnable Triggering . . . . . . . . . . . . . . . . . . . . 346
4.5.2.1 Multiplicity . . . . . . . . . . . . . . . . . . . . . . . . 346
4.5.3 Inter Basic Software Module Entity Triggering . . . . . . . . . 347
4.5.4 Inter ECU Trigger Communication . . . . . . . . . . . . . . . 348
4.5.5 Queuing of Triggers . . . . . . . . . . . . . . . . . . . . . . . 348
4.5.6 Activation of triggered ExecutableEntities . . . . . . . . . . . 350
4.6 Initialization and Finalization . . . . . . . . . . . . . . . . . . . . . . . . 351
4.6.1 Initialization and Finalization of the RTE . . . . . . . . . . . . 351
4.6.1.1 Initialization of the Basic Software Scheduler . . . . 352
4.6.1.2 Initialization of the RTE . . . . . . . . . . . . . . . . . 352
4.6.1.3 Stop and restart of the RTE . . . . . . . . . . . . . . 353
4.6.1.4 Finalization of the RTE . . . . . . . . . . . . . . . . . 354
4.6.1.5 Finalization of the Basic Software Scheduler . . . . 354
4.6.2 Initialization and Finalization of AUTOSAR Software-
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
4.7 Variant Handling Support . . . . . . . . . . . . . . . . . . . . . . . . . . 356
4.7.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
4.7.2 Choosing a Variant and Binding Variability . . . . . . . . . . 357
4.7.2.1 General impact of Binding Times on RTE generation 357
4.7.2.2 Choosing a particular variant . . . . . . . . . . . . . 358
4.7.2.3 SystemDesignTime . . . . . . . . . . . . . . . . . . . 359
4.7.2.4 CodeGenerationTime . . . . . . . . . . . . . . . . . 360
4.7.2.5 PreCompileTime . . . . . . . . . . . . . . . . . . . . 360
4.7.2.6 LinkTime . . . . . . . . . . . . . . . . . . . . . . . . 361
4.7.2.7 PostBuild . . . . . . . . . . . . . . . . . . . . . . . . 361
4.7.3 Variability affecting the RTE generation . . . . . . . . . . . . 362
4.7.3.1 Software Composition . . . . . . . . . . . . . . . . . 362
4.7.3.2 Atomic Software Component and its Internal Behavior 364
4.7.3.3 NvBlockComponent and its Internal Behavior . . . . 367
4.7.3.4 Parameter Component . . . . . . . . . . . . . . . . . 368
4.7.3.5 Data Type . . . . . . . . . . . . . . . . . . . . . . . . 368
4.7.3.6 Constants . . . . . . . . . . . . . . . . . . . . . . . . 369
4.7.3.7 Basic Software Modules and its Internal Behavior . . 370
4.7.3.8 Flat Instance descriptor . . . . . . . . . . . . . . . . 370
4.7.4 Variability affecting the Basic Software Scheduler generation 370
4.7.4.1 Basic Software Scheduler API which is subject to
variability . . . . . . . . . . . . . . . . . . . . . . . . 370
4.7.4.2 Basic Software Entities . . . . . . . . . . . . . . . . . 372
4.7.4.3 API behavior . . . . . . . . . . . . . . . . . . . . . . 372

9 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

4.7.5 Variability affecting SWC implementation . . . . . . . . . . . 372

4.8 Default errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
4.8.1 DET Report Identifiers . . . . . . . . . . . . . . . . . . . . . . 374
4.8.2 DET Error Identifiers . . . . . . . . . . . . . . . . . . . . . . . 374
4.8.3 DET Error Classification . . . . . . . . . . . . . . . . . . . . . 376
4.9 Bypass Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
4.9.1 Bypass description . . . . . . . . . . . . . . . . . . . . . . . . 379
4.9.2 Component wrapper method . . . . . . . . . . . . . . . . . . 379
4.9.3 Direct buffer access method . . . . . . . . . . . . . . . . . . 381
4.9.4 Extended buffer access method . . . . . . . . . . . . . . . . 381
4.9.4.1 Global Enable . . . . . . . . . . . . . . . . . . . . . . 382
4.9.4.2 RPT Preparation . . . . . . . . . . . . . . . . . . . . 383
4.9.4.3 Level 1 - Post-Build Hooking . . . . . . . . . . . . . . 384
4.9.4.4 Level 2 - Non Post-Build Hooking . . . . . . . . . . . 394
4.9.4.5 Level 3 - Extended Non Post-Build Hooking . . . . . 399
4.9.4.6 Level 2 and 3 - Non Post-Build Hooking and Implicit
Communication . . . . . . . . . . . . . . . . . . . . . 402
4.9.4.7 Export . . . . . . . . . . . . . . . . . . . . . . . . . . 404
4.9.5 Service Based Prototyping . . . . . . . . . . . . . . . . . . . 405
4.9.5.1 Rapid Prototyping Scenarios . . . . . . . . . . . . . 405
4.9.5.2 Service Functions . . . . . . . . . . . . . . . . . . . 407
4.9.5.3 Integration . . . . . . . . . . . . . . . . . . . . . . . . 410
4.9.5.4 Service Point IDs . . . . . . . . . . . . . . . . . . . . 411
4.9.5.5 Conditional RunnableEntity Invocation . . . . . . . . 412
4.9.5.6 Interaction with RTE-Managed buffers . . . . . . . . 413
4.9.5.7 Export . . . . . . . . . . . . . . . . . . . . . . . . . . 414
4.10 Data Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
4.10.1 Execution of Transformer . . . . . . . . . . . . . . . . . . . . 416
4.10.1.1 Transformer for inter-ECU communication . . . . . . 416
4.10.1.2 Transformer for intra-ECU communication . . . . . . 417
4.10.2 Transformer Chains . . . . . . . . . . . . . . . . . . . . . . . 418
4.10.3 Buffer Handling . . . . . . . . . . . . . . . . . . . . . . . . . 421
4.10.4 Interfaces to Transformer . . . . . . . . . . . . . . . . . . . . 423
4.10.5 Error Handling . . . . . . . . . . . . . . . . . . . . . . . . . . 423
4.10.6 COM Based Transformer . . . . . . . . . . . . . . . . . . . . 425
5 RTE Reference 426
5.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426
5.1.1 Programming Languages . . . . . . . . . . . . . . . . . . . . 426
5.1.2 Generator Principles . . . . . . . . . . . . . . . . . . . . . . . 427
5.1.2.1 Operating Modes . . . . . . . . . . . . . . . . . . . . 427
5.1.2.2 Optimization Modes . . . . . . . . . . . . . . . . . . 429
5.1.2.3 Build support . . . . . . . . . . . . . . . . . . . . . . 429
5.1.2.4 Software Component Namespace . . . . . . . . . . 432
5.1.3 Generator external configuration switches . . . . . . . . . . . 432
5.2 API Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433

10 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

5.2.1 RTE Namespace . . . . . . . . . . . . . . . . . . . . . . . . . 434

5.2.2 Direct API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434
5.2.3 Indirect API . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435
5.2.3.1 Accessing Port Handles . . . . . . . . . . . . . . . . 436
5.2.4 VariableAccess in the dataReadAccess and
dataWriteAccess roles . . . . . . . . . . . . . . . . . . . . 436
5.2.5 Per Instance Memory . . . . . . . . . . . . . . . . . . . . . . 437
5.2.6 API Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
5.2.6.1 RTE Contract Phase . . . . . . . . . . . . . . . . . 442
5.2.6.2 RTE Generation Phase . . . . . . . . . . . . . . . . 445
5.2.6.3 Function Elision . . . . . . . . . . . . . . . . . . . . . 445
5.2.6.4 API Naming Conventions . . . . . . . . . . . . . . . 446
5.2.6.5 API Parameters . . . . . . . . . . . . . . . . . . . . . 446
5.2.6.6 Return Values . . . . . . . . . . . . . . . . . . . . . . 448
5.2.6.7 Return References . . . . . . . . . . . . . . . . . . . 451
5.2.6.8 Error Handling . . . . . . . . . . . . . . . . . . . . . 452
5.2.6.9 Success Feedback . . . . . . . . . . . . . . . . . . . 453
5.2.7 Unconnected Ports . . . . . . . . . . . . . . . . . . . . . . . 453
5.2.7.1 Data Elements . . . . . . . . . . . . . . . . . . . . . 454
5.2.7.2 Mode Switch Ports . . . . . . . . . . . . . . . . . . . 456
5.2.7.3 Client-Server . . . . . . . . . . . . . . . . . . . . . . 457
5.2.7.4 External Triggers . . . . . . . . . . . . . . . . . . . . 457
5.2.8 Non-identical port interfaces . . . . . . . . . . . . . . . . . . 457
5.3 RTE Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458
5.3.1 RTE Header File . . . . . . . . . . . . . . . . . . . . . . . . . 459
5.3.2 Lifecycle Header File . . . . . . . . . . . . . . . . . . . . . . 459
5.3.3 Application Header File . . . . . . . . . . . . . . . . . . . . . 460
5.3.3.1 File Name . . . . . . . . . . . . . . . . . . . . . . . . 460
5.3.3.2 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 461
5.3.3.3 File Contents . . . . . . . . . . . . . . . . . . . . . . 462
5.3.4 RTE Types Header File . . . . . . . . . . . . . . . . . . . . . 465
5.3.4.1 File Contents . . . . . . . . . . . . . . . . . . . . . . 465
5.3.4.2 Classification of Implementation Data Types . . . . . 466
5.3.4.3 Primitive Implementation Data Type . . . . . . . . . 467
5.3.4.4 Array Implementation Data Type . . . . . . . . . . . 468
5.3.4.5 Structure Implementation Data Type and Union Im-
plementation Data Type . . . . . . . . . . . . . . . . 471
5.3.4.6 Union Implementation Data Type . . . . . . . . . . . 472
5.3.4.7 Implementation Data Type redefinition . . . . . . . . 477
5.3.4.8 Pointer Implementation Data Type . . . . . . . . . . 477
5.3.4.9 ImplementationDataTypes with Variation-
Points . . . . . . . . . . . . . . . . . . . . . . . . . 479
5.3.4.10 Naming of data types . . . . . . . . . . . . . . . . . . 479
5.3.4.11 C/C++ . . . . . . . . . . . . . . . . . . . . . . . . . . 481
5.3.5 RTE Data Handle Types Header File . . . . . . . . . . . . . . 481
5.3.5.1 File Name . . . . . . . . . . . . . . . . . . . . . . . . 481

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 Specification of RTE
AUTOSAR CP Release 4.3.0

5.3.5.2 File Contents . . . . . . . . . . . . . . . . . . . . . . 482

5.3.6 Application Types Header File . . . . . . . . . . . . . . . . . 482
5.3.6.1 File Name . . . . . . . . . . . . . . . . . . . . . . . . 482
5.3.6.2 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 483
5.3.6.3 File Contents . . . . . . . . . . . . . . . . . . . . . . 484
5.3.6.4 RTE Modes . . . . . . . . . . . . . . . . . . . . . . . 484
5.3.6.5 Enumeration Data Types . . . . . . . . . . . . . . . . 484
5.3.6.6 Range Data Types . . . . . . . . . . . . . . . . . . . 484
5.3.6.7 Implementation Data Type symbols . . . . . . . . . . 484
5.3.7 VFB Tracing Header File . . . . . . . . . . . . . . . . . . . . 484
5.3.7.1 C/C++ . . . . . . . . . . . . . . . . . . . . . . . . . . 485
5.3.7.2 File Contents . . . . . . . . . . . . . . . . . . . . . . 485
5.3.8 RTE Configuration Header File . . . . . . . . . . . . . . . . . 486
5.3.8.1 C/C++ . . . . . . . . . . . . . . . . . . . . . . . . . . 486
5.3.8.2 File Contents . . . . . . . . . . . . . . . . . . . . . . 487
5.3.9 Generated RTE . . . . . . . . . . . . . . . . . . . . . . . . . 495
5.3.9.1 Header File Usage . . . . . . . . . . . . . . . . . . . 495
5.3.9.2 C/C++ . . . . . . . . . . . . . . . . . . . . . . . . . . 496
5.3.9.3 File Contents . . . . . . . . . . . . . . . . . . . . . . 497
5.3.9.4 Reentrancy . . . . . . . . . . . . . . . . . . . . . . . 499
5.3.10 RTE Post Build Variant Sets . . . . . . . . . . . . . . . . . . 499
5.3.10.1 Example 1: File Contents Rte_PBcfg.h . . . . . . . . 500
5.3.10.2 Example 2: File Contents Rte_PBcfg.h . . . . . . . . 500
5.3.10.3 Examples: File Contents Rte_PBcfg.c . . . . . . . . 501
5.4 RTE Data Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502
5.4.1 Instance Handle . . . . . . . . . . . . . . . . . . . . . . . . . 503
5.4.2 Component Data Structure . . . . . . . . . . . . . . . . . . . 505
5.4.2.1 Data Handles Section . . . . . . . . . . . . . . . . . 507
5.4.2.2 Per-instance Memory Handles Section . . . . . . . . 511
5.4.2.3 Inter Runnable Variable Handles Section . . . . . . . 512
5.4.2.4 Exclusive-area API Section . . . . . . . . . . . . . . 513
5.4.2.5 Port API Section . . . . . . . . . . . . . . . . . . . . 514
5.4.2.6 Calibration Parameter Handles Section . . . . . . . . 520
5.4.2.7 Inter Runnable Variable API Section . . . . . . . . . 520
5.4.2.8 Inter Runnable Triggering API Section . . . . . . . . 521
5.4.2.9 Instance Id Section . . . . . . . . . . . . . . . . . . . 522
5.4.2.10 RAM Block Data Updated Handles Section . . . . . 523
5.4.2.11 Vendor Specific Section . . . . . . . . . . . . . . . . 524
5.5 API Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524
5.5.1 Std_ReturnType . . . . . . . . . . . . . . . . . . . . . . . . . 524
5.5.1.1 Infrastructure Errors . . . . . . . . . . . . . . . . . . 525
5.5.1.2 Application Errors . . . . . . . . . . . . . . . . . . . . 526
5.5.1.3 Predefined Error Codes . . . . . . . . . . . . . . . . 527
5.5.2 Rte_Instance . . . . . . . . . . . . . . . . . . . . . . . . . . . 529
5.5.3 Rte_TransformerError . . . . . . . . . . . . . . . . . . . . . . 530
5.5.4 RTE Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 531

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

5.5.5 Enumeration Data Types . . . . . . . . . . . . . . . . . . . . 533

5.5.6 Range Data Types . . . . . . . . . . . . . . . . . . . . . . . . 536
5.5.7 Data Types with bitfield conversions . . . . . . . . . . . . . . 537
5.6 API Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539
5.6.1 Rte_Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539
5.6.2 Rte_NPorts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540
5.6.3 Rte_Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541
5.6.4 Rte_Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541
5.6.5 Rte_Send . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544
5.6.6 Rte_Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 547
5.6.7 Rte_Invalidate . . . . . . . . . . . . . . . . . . . . . . . . . . 548
5.6.8 Rte_Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . 550
5.6.9 Rte_SwitchAck . . . . . . . . . . . . . . . . . . . . . . . . . . 554
5.6.10 Rte_Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 556
5.6.11 Rte_DRead . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559
5.6.12 Rte_Receive . . . . . . . . . . . . . . . . . . . . . . . . . . . 561
5.6.13 Rte_Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564
5.6.14 Rte_Result . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568
5.6.15 Rte_Pim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 572
5.6.16 Rte_CData . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573
5.6.17 Rte_Prm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574
5.6.18 Rte_IRead . . . . . . . . . . . . . . . . . . . . . . . . . . . . 575
5.6.19 Rte_IWrite . . . . . . . . . . . . . . . . . . . . . . . . . . . . 577
5.6.20 Rte_IWriteRef . . . . . . . . . . . . . . . . . . . . . . . . . . 578
5.6.21 Rte_IInvalidate . . . . . . . . . . . . . . . . . . . . . . . . . . 579
5.6.22 Rte_IStatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 580
5.6.23 Rte_IrvIRead . . . . . . . . . . . . . . . . . . . . . . . . . . . 583
5.6.24 Rte_IrvIWrite . . . . . . . . . . . . . . . . . . . . . . . . . . . 584
5.6.25 Rte_IrvIWriteRef . . . . . . . . . . . . . . . . . . . . . . . . . 585
5.6.26 Rte_IrvRead . . . . . . . . . . . . . . . . . . . . . . . . . . . 587
5.6.27 Rte_IrvWrite . . . . . . . . . . . . . . . . . . . . . . . . . . . 588
5.6.28 Rte_Enter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 589
5.6.29 Rte_Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 590
5.6.30 Rte_Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 591
5.6.31 Enhanced Rte_Mode . . . . . . . . . . . . . . . . . . . . . . 594
5.6.32 Rte_Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . 597
5.6.33 Rte_IrTrigger . . . . . . . . . . . . . . . . . . . . . . . . . . . 599
5.6.34 Rte_IFeedback . . . . . . . . . . . . . . . . . . . . . . . . . . 600
5.6.35 Rte_IsUpdated . . . . . . . . . . . . . . . . . . . . . . . . . . 602
5.6.36 Rte_PBCon . . . . . . . . . . . . . . . . . . . . . . . . . . . . 603
5.7 Runnable Entity Reference . . . . . . . . . . . . . . . . . . . . . . . . . 604
5.7.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 605
5.7.2 Entry Point Prototype . . . . . . . . . . . . . . . . . . . . . . 605
5.7.3 Role Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 608
5.7.4 Return Value . . . . . . . . . . . . . . . . . . . . . . . . . . . 608
5.7.5 Triggering Events . . . . . . . . . . . . . . . . . . . . . . . . 609

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

5.7.5.1 TimingEvent . . . . . . . . . . . . . . . . . . . . . . . 609

5.7.5.2 BackgroundEvent . . . . . . . . . . . . . . . . . . . . 609
5.7.5.3 SwcModeSwitchEvent . . . . . . . . . . . . . . . . . 610
5.7.5.4 AsynchronousServerCallReturnsEvent . . . . . . . . 610
5.7.5.5 DataReceiveErrorEvent . . . . . . . . . . . . . . . . 610
5.7.5.6 OperationInvokedEvent . . . . . . . . . . . . . . . . 610
5.7.5.7 DataReceivedEvent . . . . . . . . . . . . . . . . . . 613
5.7.5.8 DataSendCompletedEvent . . . . . . . . . . . . . . . 613
5.7.5.9 ModeSwitchedAckEvent . . . . . . . . . . . . . . . . 614
5.7.5.10 SwcModeManagerErrorEvent . . . . . . . . . . . . . 614
5.7.5.11 ExternalTriggerOccurredEvent . . . . . . . . . . . . 614
5.7.5.12 InternalTriggerOccurredEvent . . . . . . . . . . . . . 615
5.7.5.13 DataWriteCompletedEvent . . . . . . . . . . . . . . 615
5.7.5.14 InitEvent . . . . . . . . . . . . . . . . . . . . . . . . . 615
5.7.5.15 TransformerErrorEvent . . . . . . . . . . . . . . . . . 615
5.7.6 Reentrancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 616
5.8 RTE Lifecycle API Reference . . . . . . . . . . . . . . . . . . . . . . . 616
5.8.1 Rte_Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 617
5.8.1.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . 617
5.8.1.2 Existence . . . . . . . . . . . . . . . . . . . . . . . . 617
5.8.1.3 Description . . . . . . . . . . . . . . . . . . . . . . . 617
5.8.1.4 Return Value . . . . . . . . . . . . . . . . . . . . . . 618
5.8.1.5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 618
5.8.2 Rte_Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 618
5.8.2.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . 619
5.8.2.2 Existence . . . . . . . . . . . . . . . . . . . . . . . . 619
5.8.2.3 Description . . . . . . . . . . . . . . . . . . . . . . . 619
5.8.2.4 Return Value . . . . . . . . . . . . . . . . . . . . . . 619
5.8.2.5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 620
5.8.3 Rte_PartitionTerminated . . . . . . . . . . . . . . . . . . . . . 620
5.8.3.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . 620
5.8.3.2 Existence . . . . . . . . . . . . . . . . . . . . . . . . 620
5.8.3.3 Description . . . . . . . . . . . . . . . . . . . . . . . 620
5.8.3.4 Return Value . . . . . . . . . . . . . . . . . . . . . . 621
5.8.3.5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 621
5.8.4 Rte_PartitionRestarting . . . . . . . . . . . . . . . . . . . . . 621
5.8.4.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . 622
5.8.4.2 Existence . . . . . . . . . . . . . . . . . . . . . . . . 622
5.8.4.3 Description . . . . . . . . . . . . . . . . . . . . . . . 622
5.8.4.4 Return Value . . . . . . . . . . . . . . . . . . . . . . 622
5.8.4.5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 622
5.8.5 Rte_RestartPartition . . . . . . . . . . . . . . . . . . . . . . . 623
5.8.5.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . 623
5.8.5.2 Existence . . . . . . . . . . . . . . . . . . . . . . . . 623
5.8.5.3 Description . . . . . . . . . . . . . . . . . . . . . . . 623
5.8.5.4 Return Value . . . . . . . . . . . . . . . . . . . . . . 624

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

5.8.5.5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 624

5.8.6 Rte_Init . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 624
5.8.6.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . 625
5.8.6.2 Existence . . . . . . . . . . . . . . . . . . . . . . . . 625
5.8.6.3 Description . . . . . . . . . . . . . . . . . . . . . . . 625
5.8.6.4 Return Value . . . . . . . . . . . . . . . . . . . . . . 625
5.8.6.5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 626
5.8.7 Rte_StartTiming . . . . . . . . . . . . . . . . . . . . . . . . . 626
5.8.7.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . 626
5.8.7.2 Existence . . . . . . . . . . . . . . . . . . . . . . . . 626
5.8.7.3 Description . . . . . . . . . . . . . . . . . . . . . . . 626
5.8.7.4 Return Value . . . . . . . . . . . . . . . . . . . . . . 627
5.8.7.5 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 627
5.9 RTE Call-backs Reference . . . . . . . . . . . . . . . . . . . . . . . . . 627
5.9.1 RTE-COM Message Naming Conventions . . . . . . . . . . . 627
5.9.2 Communication Service Call-backs . . . . . . . . . . . . . . 628
5.9.2.1 Call-backs for communication over AUTOSAR COM 628
5.9.2.2 Call-backs for communication over AUTOSAR LdCom 636
5.9.3 NVM Service Call-backs . . . . . . . . . . . . . . . . . . . . 643
5.9.3.1 Rte_SetMirror . . . . . . . . . . . . . . . . . . . . . . 643
5.9.3.2 Rte_GetMirror . . . . . . . . . . . . . . . . . . . . . . 644
5.9.3.3 Rte_NvMNotifyJobFinished . . . . . . . . . . . . . . 645
5.9.3.4 Rte_NvMNotifyInitBlock . . . . . . . . . . . . . . . . 646
5.10 Expected interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 648
5.10.1 Expected Interfaces from Com . . . . . . . . . . . . . . . . . 648
5.10.2 Expected Interfaces from LdCom . . . . . . . . . . . . . . . . 648
5.10.3 Expected Interfaces from Os . . . . . . . . . . . . . . . . . . 649
5.10.4 Expected Interfaces for Data Transformation . . . . . . . . . 649
5.10.5 Expected Interfaces from NvM . . . . . . . . . . . . . . . . . 649
5.11 VFB Tracing Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . 650
5.11.1 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . 650
5.11.2 Support for multiple clients . . . . . . . . . . . . . . . . . . . 651
5.11.3 Support for Multiple Instantiation . . . . . . . . . . . . . . . . 652
5.11.4 Contribution to the Basic Software Module Description . . . . 652
5.11.5 Trace Events . . . . . . . . . . . . . . . . . . . . . . . . . . . 652
5.11.5.1 RTE API Trace Events . . . . . . . . . . . . . . . . . 652
5.11.5.2 BSW Scheduler API Trace Events . . . . . . . . . . 654
5.11.5.3 COM Trace Events . . . . . . . . . . . . . . . . . . . 655
5.11.5.4 OS Trace Events . . . . . . . . . . . . . . . . . . . . 657
5.11.5.5 Runnable Entity Trace Events . . . . . . . . . . . . . 659
5.11.5.6 BSW Schedulable Entities Trace Events . . . . . . . 660
5.11.5.7 RPT Trace Events . . . . . . . . . . . . . . . . . . . 661
5.11.6 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 662
5.11.7 Interaction with Object-code Software-Components . . . . . 663
6 Basic Software Scheduler Reference 664

15 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

6.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664

6.2 API Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664
6.2.1 Basic Software Scheduler Namespace . . . . . . . . . . . . 664
6.2.2 BSW Scheduler Name Prefix and Section Name Prefix . . . 665
6.2.3 BSW Scheduler API options . . . . . . . . . . . . . . . . . . 669
6.3 Basic Software Scheduler modules . . . . . . . . . . . . . . . . . . . . 669
6.3.1 Module Interlink Types Header . . . . . . . . . . . . . . . . . 669
6.3.1.1 File Name . . . . . . . . . . . . . . . . . . . . . . . . 670
6.3.1.2 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 671
6.3.1.3 File Contents . . . . . . . . . . . . . . . . . . . . . . 671
6.3.1.4 Basic Software Scheduler Modes . . . . . . . . . . . 671
6.3.2 Module Interlink Header . . . . . . . . . . . . . . . . . . . . . 671
6.3.2.1 File Name . . . . . . . . . . . . . . . . . . . . . . . . 672
6.3.2.2 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 673
6.3.2.3 File Contents . . . . . . . . . . . . . . . . . . . . . . 673
6.4 API Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 677
6.4.1 Predefined Error Codes for Std_ReturnType . . . . . . . . . 677
6.4.2 Basic Software Modes . . . . . . . . . . . . . . . . . . . . . . 678
6.4.3 Enumeration Data Types . . . . . . . . . . . . . . . . . . . . 680
6.4.4 Range Data Types . . . . . . . . . . . . . . . . . . . . . . . . 682
6.4.5 Data Types with bitfield conversions . . . . . . . . . . . . . . 684
6.5 API Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 686
6.5.1 SchM_Enter . . . . . . . . . . . . . . . . . . . . . . . . . . . 686
6.5.2 SchM_Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 687
6.5.3 SchM_Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . 688
6.5.4 SchM_Result . . . . . . . . . . . . . . . . . . . . . . . . . . . 691
6.5.5 SchM_Send . . . . . . . . . . . . . . . . . . . . . . . . . . . 692
6.5.6 SchM_Receive . . . . . . . . . . . . . . . . . . . . . . . . . . 694
6.5.7 SchM_Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . 695
6.5.8 SchM_Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 697
6.5.9 Enhanced SchM_Mode . . . . . . . . . . . . . . . . . . . . . 698
6.5.10 SchM_SwitchAck . . . . . . . . . . . . . . . . . . . . . . . . 700
6.5.11 SchM_Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . 702
6.5.12 SchM_ActMainFunction . . . . . . . . . . . . . . . . . . . . . 703
6.5.13 SchM_CData . . . . . . . . . . . . . . . . . . . . . . . . . . . 704
6.5.14 SchM_Pim . . . . . . . . . . . . . . . . . . . . . . . . . . . . 706
6.6 Bsw Module Entity Reference . . . . . . . . . . . . . . . . . . . . . . . 706
6.6.1 Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 707
6.6.2 Entry Point Prototype . . . . . . . . . . . . . . . . . . . . . . 709
6.6.3 Reentrancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 712
6.6.4 Provide activating Bsw event . . . . . . . . . . . . . . . . . . 712
6.7 Basic Software Scheduler Lifecycle API Reference . . . . . . . . . . . 713
6.7.1 SchM_Init . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713
6.7.2 SchM_Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713
6.7.3 SchM_StartTiming . . . . . . . . . . . . . . . . . . . . . . . . 714
6.7.4 SchM_Deinit . . . . . . . . . . . . . . . . . . . . . . . . . . . 715

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

6.7.5 SchM_GetVersionInfo . . . . . . . . . . . . . . . . . . . . . . 716

7 RTE ECU Configuration 718
7.1 RTE Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 718
7.1.1 RTE Configuration Version Information . . . . . . . . . . . . 720
7.2 RTE Generation Parameters . . . . . . . . . . . . . . . . . . . . . . . . 721
7.3 RTE PreBuild configuration . . . . . . . . . . . . . . . . . . . . . . . . 728
7.4 RTE PostBuild configuration . . . . . . . . . . . . . . . . . . . . . . . . 730
7.5 Handling of Software Component instances . . . . . . . . . . . . . . . 733
7.5.1 RTE Event to task mapping . . . . . . . . . . . . . . . . . . . 735
7.5.1.1 Evaluation and execution order . . . . . . . . . . . . 737
7.5.1.2 Direct function call . . . . . . . . . . . . . . . . . . . 737
7.5.1.3 Schedule Points . . . . . . . . . . . . . . . . . . . . 739
7.5.1.4 Timeprotection support . . . . . . . . . . . . . . . . 740
7.5.1.5 Os Interaction . . . . . . . . . . . . . . . . . . . . . . 741
7.5.1.6 Background activation . . . . . . . . . . . . . . . . . 742
7.5.1.7 Constraints . . . . . . . . . . . . . . . . . . . . . . . 742
7.5.2 Rte Os Interaction . . . . . . . . . . . . . . . . . . . . . . . . 749
7.5.2.1 Activation using Os features . . . . . . . . . . . . . . 750
7.5.2.2 Modes and Schedule Tables . . . . . . . . . . . . . . 753
7.5.3 Exclusive Area implementation . . . . . . . . . . . . . . . . . 757
7.5.4 NVRam Allocation . . . . . . . . . . . . . . . . . . . . . . . . 760
7.5.5 SWC Trigger queuing . . . . . . . . . . . . . . . . . . . . . . 764
7.6 Handling of Software Component types . . . . . . . . . . . . . . . . . . 768
7.6.1 Selection of Software-Component Implementation . . . . . . 768
7.6.2 Component Type Calibration . . . . . . . . . . . . . . . . . . 770
7.7 Implicit communication configuration . . . . . . . . . . . . . . . . . . . 773
7.8 Communication infrastructure . . . . . . . . . . . . . . . . . . . . . . . 776
7.9 Configuration of the BSW Scheduler . . . . . . . . . . . . . . . . . . . 776
7.9.1 BSW Scheduler General configuration . . . . . . . . . . . . . 778
7.9.2 BSW Module Instance configuration . . . . . . . . . . . . . . 779
7.9.2.1 BSW ExclusiveArea configuration . . . . . . . . . . . 781
7.9.2.2 BswEvent to task mapping . . . . . . . . . . . . . . . 784
7.9.2.3 BSW Trigger configuration . . . . . . . . . . . . . . . 790
7.9.2.4 BSW ModeDeclarationGroup configuration . . . . . 795
7.9.2.5 BSW Client Server configuration . . . . . . . . . . . 798
7.9.2.6 BSW Sender Receiver configuration . . . . . . . . . 800
7.10 Configuration of Synchronization Points . . . . . . . . . . . . . . . . . 802
7.11 Configuration of Initialization . . . . . . . . . . . . . . . . . . . . . . . . 803
A Metamodel Restrictions 808
A.1 Restrictions concerning WaitPoint . . . . . . . . . . . . . . . . . . . 808
A.2 Restrictions concerning RTEEvent . . . . . . . . . . . . . . . . . . . . 809
A.3 Restrictions concerning queued implementation policy . . . . . . . . . 809
A.4 Restrictions concerning ServerCallPoint . . . . . . . . . . . . . . . . . 810
A.5 Restriction concerning multiple instantiation of software components . 811
A.6 Restrictions concerning runnable entity . . . . . . . . . . . . . . . . . . 811

17 of 1116 Document ID 084: AUTOSAR_SWS_RTE

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 Specification of RTE
AUTOSAR CP Release 4.3.0

A.7 Restrictions concerning runnables with dependencies on modes . . . 812

A.8 Restriction concerning SwcInternalBehavior . . . . . . . . . . . . . . . 814
A.9 Restrictions concerning Initial Value . . . . . . . . . . . . . . . . . . . . 814
A.10 Restriction concerning PerInstanceMemory . . . . . . . . . . . . . . . 815
A.11 Restrictions concerning unconnected r-port . . . . . . . . . . . . . . . 815
A.12 Restrictions regarding communication of mode switch notifications . . 816
A.13 Restrictions regarding Measurement and Calibration . . . . . . . . . . 816
A.14 Restriction concerning ExclusiveAreaImplMechanism . . . . . . . . . . 817
A.15 Restrictions concerning AtomicSwComponentTypes . . . . . . . . . 817
A.16 Restriction concerning the enableUpdate attribute of Nonqueue-
dReceiverComSpecs . . . . . . . . . . . . . . . . . . . . . . . . . . . 818
A.17 Restrictions concerning the large and dynamic data type . . . . . . . . 818
A.18 Restriction concerning REFERENCE types . . . . . . . . . . . . . . . 819
A.19 Restriction concerning ModeDeclarationGroup categories and value
attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819
A.20 Restrictions concerning C/S Interfaces . . . . . . . . . . . . . . . . . . 820
B External Requirements 821

C MISRA C Compliance 822

D Referenced Meta Classes 824

E Referenced ECUC Configuration Parameters 994

E.1 Com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 994
E.1.1 ComGroupSignal . . . . . . . . . . . . . . . . . . . . . . . . 994
E.1.2 ComIPdu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1001
E.1.3 ComSignal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1006
E.1.4 ComSignalGroup . . . . . . . . . . . . . . . . . . . . . . . . 1019
E.2 LdCom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1027
E.2.1 LdComConfig . . . . . . . . . . . . . . . . . . . . . . . . . . 1027
E.2.2 LdComIPdu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1027
E.3 EcuC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1033
E.3.1 EcucPartition . . . . . . . . . . . . . . . . . . . . . . . . . . . 1034
E.4 NvM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1036
E.4.1 NvMBlockDescriptor . . . . . . . . . . . . . . . . . . . . . . . 1036
E.5 Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1051
E.5.1 OsAlarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1051
E.5.2 OsApplication . . . . . . . . . . . . . . . . . . . . . . . . . . 1052
E.5.3 OsCounter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1057
E.5.4 OsEvent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1060
E.5.5 OsScheduleTable . . . . . . . . . . . . . . . . . . . . . . . . 1061
E.5.6 OsScheduleTableExpiryPoint . . . . . . . . . . . . . . . . . . 1063
E.5.7 OsTask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1063
F Examples 1067
F.1 ModeDeclarationGroupMapping . . . . . . . . . . . . . . . . . . . . . . 1067

18 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

F.2 Stability need for received data . . . . . . . . . . . . . . . . . . . . . . 1073

F.3 CompuMethod with bitfield texttable conversion . . . . . . . . . . . . . 1079
F.4 Structure type with self-reference . . . . . . . . . . . . . . . . . . . . . 1084
F.5 Multiple calibration parameters instances . . . . . . . . . . . . . . . . . 1087
G Changes History 1096
G.1 Changes in Rel. 4.0 Rev. 2 compared to Rel. 4.0 Rev. 1 . . . . . . . . 1096
G.1.1 Deleted SWS Items . . . . . . . . . . . . . . . . . . . . . . . 1096
G.1.2 Changed SWS Items . . . . . . . . . . . . . . . . . . . . . . 1096
G.1.3 Added SWS Items . . . . . . . . . . . . . . . . . . . . . . . . 1096
G.2 Changes in Rel. 4.0 Rev. 3 compared to Rel. 4.0 Rev. 2 . . . . . . . . 1097
G.2.1 Deleted SWS Items . . . . . . . . . . . . . . . . . . . . . . . 1097
G.2.2 Changed SWS Items . . . . . . . . . . . . . . . . . . . . . . 1097
G.2.3 Added SWS Items . . . . . . . . . . . . . . . . . . . . . . . . 1098
G.3 Changes in Rel. 4.1 Rev. 1 compared to Rel. 4.0 Rev. 3 . . . . . . . . 1099
G.3.1 Renamed SWS Items . . . . . . . . . . . . . . . . . . . . . . 1099
G.3.2 Added constraints . . . . . . . . . . . . . . . . . . . . . . . . 1101
G.3.3 Deleted SWS Items . . . . . . . . . . . . . . . . . . . . . . . 1101
G.3.4 Changed SWS Items . . . . . . . . . . . . . . . . . . . . . . 1101
G.3.5 Added SWS Items . . . . . . . . . . . . . . . . . . . . . . . . 1103
G.4 Changes in Rel. 4.1 Rev. 2 compared to Rel. 4.1 Rev. 1 . . . . . . . . 1104
G.4.1 Added Traceables in 4.1.2 . . . . . . . . . . . . . . . . . . . . 1104
G.4.2 Changed Traceables in 4.1.2 . . . . . . . . . . . . . . . . . . 1104
G.4.3 Deleted Traceables in 4.1.2 . . . . . . . . . . . . . . . . . . . 1105
G.4.4 Added Constraints in 4.1.2 . . . . . . . . . . . . . . . . . . . 1105
G.4.5 Changed Constraints in 4.1.2 . . . . . . . . . . . . . . . . . . 1105
G.4.6 Deleted Constraints in 4.1.2 . . . . . . . . . . . . . . . . . . 1105
G.5 Changes in Rel. 4.1 Rev. 3 compared to Rel. 4.1 Rev. 2 . . . . . . . . 1105
G.5.1 Added Traceables in 4.1.3 . . . . . . . . . . . . . . . . . . . . 1105
G.5.2 Changed Traceables in 4.1.3 . . . . . . . . . . . . . . . . . . 1106
G.5.3 Deleted Traceables in 4.1.3 . . . . . . . . . . . . . . . . . . . 1106
G.5.4 Added Constraints in 4.1.3 . . . . . . . . . . . . . . . . . . . 1106
G.5.5 Changed Constraints in 4.1.3 . . . . . . . . . . . . . . . . . . 1106
G.5.6 Deleted Constraints in 4.1.3 . . . . . . . . . . . . . . . . . . 1106
G.6 Changes in Rel. 4.2 Rev. 1 compared to Rel. 4.1 Rev. 3 . . . . . . . . 1107
G.6.1 Added Traceables in 4.2.1 . . . . . . . . . . . . . . . . . . . . 1107
G.6.2 Changed Traceables in 4.2.1 . . . . . . . . . . . . . . . . . . 1108
G.6.3 Deleted Traceables in 4.2.1 . . . . . . . . . . . . . . . . . . . 1109
G.6.4 Added Constraints in 4.2.1 . . . . . . . . . . . . . . . . . . . 1109
G.6.5 Changed Constraints in 4.2.1 . . . . . . . . . . . . . . . . . . 1109
G.6.6 Deleted Constraints in 4.2.1 . . . . . . . . . . . . . . . . . . 1109
G.7 Changes in Rel. 4.2 Rev. 2 compared to Rel. 4.2 Rev. 1 . . . . . . . . 1110
G.7.1 Added Traceables in 4.2.2 . . . . . . . . . . . . . . . . . . . . 1110
G.7.2 Changed Traceables in 4.2.2 . . . . . . . . . . . . . . . . . . 1110
G.7.3 Deleted Traceables in 4.2.2 . . . . . . . . . . . . . . . . . . . 1110
G.7.4 Added Constraints in 4.2.2 . . . . . . . . . . . . . . . . . . . 1111

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 Specification of RTE
AUTOSAR CP Release 4.3.0

G.7.5 Changed Constraints in 4.2.2 . . . . . . . . . . . . . . . . . . 1111

G.7.6 Deleted Constraints in 4.2.2 . . . . . . . . . . . . . . . . . . 1111
G.8 Changes in Rel. 4.3 Rev. 0 compared to Rel. 4.2 Rev. 2 . . . . . . . . 1111
G.8.1 Added Traceables in 4.3.0 . . . . . . . . . . . . . . . . . . . . 1111
G.8.2 Changed Traceables in 4.3.0 . . . . . . . . . . . . . . . . . . 1112
G.8.3 Deleted Traceables in 4.3.0 . . . . . . . . . . . . . . . . . . . 1112
G.8.4 Renamed Constraints in 4.3.0 . . . . . . . . . . . . . . . . . 1112
G.8.5 Added Constraints in 4.3.0 . . . . . . . . . . . . . . . . . . . 1116
G.8.6 Changed Constraints in 4.3.0 . . . . . . . . . . . . . . . . . . 1116
G.8.7 Deleted Constraints in 4.3.0 . . . . . . . . . . . . . . . . . . 1116

20 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Bibliography
[1] Virtual Functional Bus
AUTOSAR_EXP_VFB
[2] Software Component Template
AUTOSAR_TPS_SoftwareComponentTemplate
[3] Specification of Communication
AUTOSAR_SWS_COM
[4] Specification of Operating System
AUTOSAR_SWS_OS
[5] Specification of ECU Configuration
AUTOSAR_TPS_ECUConfiguration
[6] Methodology
AUTOSAR_TR_Methodology
[7] Specification of ECU State Manager
AUTOSAR_SWS_ECUStateManager
[8] System Template
AUTOSAR_TPS_SystemTemplate
[9] Basic Software Module Description Template
AUTOSAR_TPS_BSWModuleDescriptionTemplate
[10] Generic Structure Template
AUTOSAR_TPS_GenericStructureTemplate
[11] Glossary
AUTOSAR_TR_Glossary
[12] General Requirements on Basic Software Modules
AUTOSAR_SRS_BSWGeneral
[13] Requirements on Runtime Environment
AUTOSAR_SRS_RTE
[14] Specification of Timing Extensions
AUTOSAR_TPS_TimingExtensions
[15] Layered Software Architecture
AUTOSAR_EXP_LayeredSoftwareArchitecture
[16] Specification of ECU Resource Template
AUTOSAR_TPS_ECUResourceTemplate
[17] Specification of I/O Hardware Abstraction
AUTOSAR_SWS_IOHardwareAbstraction

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[18] Requirements on Operating System

AUTOSAR_SRS_OS
[19] Requirements on Communication
AUTOSAR_SRS_COM
[20] ASAM MCD 2MC ASAP2 Interface Specification
http://www.asam.net
ASAP2-V1.51.pdf
[21] Specification of NVRAM Manager
AUTOSAR_SWS_NVRAMManager
[22] Collection of blueprints for AUTOSAR M1 models
AUTOSAR_MOD_GeneralBlueprints
[23] Specification of COM Based Transformer
AUTOSAR_SWS_COMBasedTransformer
[24] Guide to BSW Distribution
AUTOSAR_EXP_BSWDistributionGuide
[25] Specification of Default Error Tracer
AUTOSAR_SWS_DefaultErrorTracer
[26] General Specification on Transformers
AUTOSAR_ASWS_TransformerGeneral
[27] Guidelines for the use of the C language in critical systems, ISBN 978-1-906400-
10-1
MISRA_C_2012.pdf
[28] Specification of Memory Mapping
AUTOSAR_SWS_MemoryMapping
[29] General Specification of Basic Software Modules
AUTOSAR_SWS_BSWGeneral
[30] Specification of Compiler Abstraction
AUTOSAR_SWS_CompilerAbstraction
[31] Specification of Standard Types
AUTOSAR_SWS_StandardTypes
[32] Specification of Bit Handling Routines
AUTOSAR_SWS_BFXLibrary
[33] Specification of Diagnostic Log and Trace
AUTOSAR_SWS_DiagnosticLogAndTrace
[34] Collection of constraints on AUTOSAR M1 models
AUTOSAR_TR_AutosarModelConstraints

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Note on XML examples

This specification includes examples in XML based on the AUTOSAR metamodel avail-
able at the time of writing. These examples are included as illustrations of configura-
tions and their expected outcome but should not be considered part of the specification.

1 Introduction
This document contains the software specification of the AUTOSAR Run-Time Environ-
ment (RTE) and the Basic Software Scheduler. Basically, the RTE together with the
OS, AUTOSAR COM and other Basic Software Modules is the implementation of the
Virtual Functional Bus concepts (VFB, [1]). The RTE implements the AUTOSAR Virtual
Functional Bus interfaces and thereby realizes the communication between AUTOSAR
software-components.
This document describes how these concepts are realized within the RTE. Further-
more, the Application Programming Interface (API) of the RTE and the interaction of
the RTE with other basic software modules is specified.
The Basic Software Scheduler offers concepts and services to integrate Basic Soft-
ware Modules Hence, the Basic Software Scheduler
embed Basic Software Module implementations into the AUTOSAR OS context
trigger main processing functions of the Basic Software Modules
apply data consistency mechanisms for the Basic Software Modules
to communicate modes between Basic Software Modules

1.1 Scope
This document is intended to be the main reference for developers of an RTE gener-
ator tool or of a concrete RTE implementation respectively. The document is also the
reference for developers of AUTOSAR software-components and basic software mod-
ules that interact with the RTE, since it specifies the application programming interface
of the RTE and therefore the mechanisms for accessing the RTE functionality. Fur-
thermore, this specification should be read by the AUTOSAR working groups that are
closely related to the RTE (see Section 1.2 below), since it describes the interfaces of
the RTE to these modules as well as the behavior / functionality the RTE expects from
them.
This document is structured as follows. After this general introduction, Chapter 2 gives
a more detailed introduction of the concepts of the RTE. Chapter 3 describes how an
RTE is generated in the context of the overall AUTOSAR methodology. Chapter 4 is
the central part of this document. It specifies the RTE functionality in detail. The RTE
API is described in Chapter 5.

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The appendix of this document consists of five parts: Appendix A lists the restrictions to
the AUTOSAR metamodel that this version of the RTE specification relies on. Appendix
B explicitly lists all external requirements, i.e. all requirements that are not about the
RTE itself but specify the assumptions on the environment and the input of an RTE
generator. In Appendix C some MISRA-C rules are listed that are likely to be violated
by RTE code, and the rationale why these violations may occur.
Note that Chapters 1 and 2, as well as Appendix C do not contain any requirements
and are thus intended for information only.
Chapters 4 and 5 are probably of most interest for developers of an RTE Generator.
Chapters 2, 3, 5 are important for developers of AUTOSAR software-components and
basic software modules. The most important chapters for related AUTOSAR work
packages would be Chapters 4, 5, as well as Appendix B.
The specifications in this document do not define details of the implementation of a
concrete RTE or RTE generator respectively. Furthermore, aspects of the ECU- and
system-generation process (like e.g. the mapping of SW-Cs to ECUs, or schedulability
analysis) are also not in the scope of this specification. Nevertheless, it is specified
what input the RTE generator expects from these configuration phases.

1.2 Dependency to other AUTOSAR specifications

The main documents that served as input for the specification of the RTE are the spec-
ification of the Virtual Functional Bus [1] and the specification of the Software Com-
ponent Template [2]. Also of primary importance are the specifications of those Basic
Software modules that closely interact with the RTE (or vice versa). These are espe-
cially the communication module [3] and the operating system [4]. The main input of
an RTE generator is described (among others) in the ECU Configuration Description.
Therefore, the corresponding specification [5] is also important for the RTE specifica-
tion. Furthermore, as the process of RTE generation is an important part of the overall
AUTOSAR Methodology, the corresponding document [6] is also considered.
The following list shows the specifications that are closely interdependent to the spec-
ification of the RTE:
Specification of the Virtual Functional Bus [1]
Specification of the Software Component Template [2]
Specification of AUTOSAR COM [3]
Specification of AUTOSAR OS [4]
Specification of ECU State Manager and Communication Manager [7]
Specification of ECU Configuration [5]
Specification of System Description / Generation [8]

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AUTOSAR Methodology [6]

Specification of BSW Module Description Template [9]
AUTOSAR Generic Structure Template [10]

1.3 Acronyms and Abbreviations

All abbreviations used throughout this document except the ones listed here can
be found in the official AUTOSAR glossary [11].

1.4 Technical Terms

All technical terms used throughout this document except the ones listed here can
be found in the official AUTOSAR glossary [11] or the Software Component Template
Specification [2].
Term Description
An application mode manager is an AUTOSAR software-
component that provides the service of switching modes. The
application mode manager
modes of an application mode manager do not have to be
standardized.
Definitions and declarations for non automatic1 memory objects
AutosarDataPrototype im-
which are allocated by the RTE and implementing AutosarDat-
plementation
aPrototypes or their belonging status handling.
The activation of a BswSchedulableEntity is defined as the
activation of the task that contains the BswSchedulableEn-
BswSchedulableEntity acti-
tity and eventually includes setting a flag that tells the glue
vation
code in the task which BswSchedulableEntity is to be exe-
cuted.
A BswSchedulableEntity is started by the calling the C-
BswSchedulableEntity start function that implements the BswSchedulableEntity from
within a started task.
C typed PerInstanceMemory is defined with the class PerIn-
C typed PerInstanceMem-
stanceMemory. The type of the memory is defined with a C
ory
typedef in the attribute typeDefinition.
A client is defined as one ClientServerOperation in one
RPortPrototype of one Software Component instance. For
the definition of the client neither the number of ServerCall-
Points nor RunnableEntity accesses to the ServerCall-
client
Point are relevant. A Software Component instance can appear
as several clients to the same server if it defines ServerCall-
Points for several PortPrototypes of the same PortInter-
faces ClientServerOperation.
Variability defined with an VariationPoint or Attribute-
CodeGenerationTime variability ValueVariationPoint with latest bindingTime CodeGenera-
tionTime.

1
declaration with no static or external specifier defines an automatic variable

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A set of implicit read accesses and implicit write

accesses for which the RTE cares for data coherency. Please
note that in the context of this specification the definition of co-
herency includes that
read data values of different VariableDataPrototypes
have to be from the same age, except the values are
coherency group changed by implicit write accesses belonging to
the coherency group
written data values of different VariableDataProto-
types are communicated to readers NOT belonging to the
coherency group after the last implicit write ac-
cess belonging to the coherency group.

An implicit read access or an implicit write ac-

cess which belongs to coherency group. Therefore it is
referenced by a RteVariableReadAccessRef or RteVari-
coherent implicit data access
ableWriteAccessRef belonging to a RteImplicitCommu-
nication container which RteCoherentAccess parameter is
set to true.
An implicit read access which belongs to coherency
group. Therefore it is referenced by a RteVariableReadAc-
coherent implicit read access
cessRef belonging to a RteImplicitCommunication con-
tainer which RteCoherentAccess parameter is set to true.
An implicit write access which belongs to coherency
group. Therefore it is referenced by a RteVariableReadAc-
coherent implicit write access cessRef or RteVariableWriteAccessRef belonging to
a RteImplicitCommunication container which RteCo-
herentAccess parameter is set to true.
A common mode machine instance is a special mode machine
instance shared by BSW Modules and SW-Cs:
The RTE Generator creates only one mode machine in-
stance if a ModeDeclarationGroupPrototype instantiated in a
common mode machine in-
port of a software-component is synchronized (synchronized-
stance
ModeGroup of a SwcBswMapping) with a providedModeGroup
ModeDeclarationGroupPrototype of a Basic Software Module in-
stance. The related mode machine instance is called com-
mon mode machine instance.
Copy semantic means, that the accessing entities are able to
read or write the "copied" data from their execution context in a
copy semantic non concurrent and non preempting manner. If all accessing en-
tities are in the same preemption area this might not require
a real physical data copy.
In the case that mode users belong to different partitions which
in turn are scheduled on different micro controller cores the over-
all mode machine instance needs to be distributed cross core.
Thereby some restrictions are only applicable between the mode
core local mode user group users executed on the same micro controller core.
All mode users of the same mode manager which belong to
EcucPartition which in turn belong to OsApplications re-
ferring to the same EcucCoreDefinition are belonging to the
same core local mode user group.

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When data is distributed, the last received value is of interest

(last-is-best semantics). Therefore the software implementation
data semantic
policy, stated in the swImplPolicy attribute of the SwDataDef-
Props, shouldnt be queued.
When events are distributed the whole history of received events
is of interest, hence they must be queued on receiver side. There-
event semantic fore the software implementation policy, stated in the swIm-
plPolicy attribute of the SwDataDefProps, will have the value
queued(corresponding to event distribution with a queue).
An execution-instance of a ExecutableEntity is one instance
execution-instance or call context of an ExecutableEntity with respect to con-
current execution, see section 4.2.3.
VariableAccess aggregated in the role dataReadAccess to
implicit read access
a VariableDataPrototype
VariableAccess aggregated in the role dataWriteAccess to
implicit write access
a VariableDataPrototype
An implicit read access or an implicit write ac-
cess which does not belong to a coherency group. Therefore
it is NOT referenced by any RteVariableReadAccessRef or
incoherent implicit data access
RteVariableWriteAccessRef belonging to a RteImplic-
itCommunication container which RteCoherentAccess pa-
rameter is set to true.
An implicit read access which does not belong to a co-
herency group. Therefore it is NOT referenced by any Rte-
incoherent implicit read access VariableReadAccessRef belonging to a RteImplicitCom-
munication container which RteCoherentAccess parameter
is set to true.
An implicit write access which does not belong to a
coherency group. Therefore it is NOT referenced by any
incoherent implicit write access RteVariableWriteAccessRef belonging to a RteImplic-
itCommunication container which RteCoherentAccess pa-
rameter is set to true.
The communication between ECUs, typically using COM is called
inter-ECU communication
inter-ECU communication in this document.
The communication within one ECU but between different parti-
tions, represented by different OS applications, is called inter-
partition communication in this document. It typically involves
inter-partition communication
the use of OS mechanisms like IOC or trusted function calls. The
partitions can be located on different cores or use different mem-
ory sections of the ECU.
The communication within one ECU is called intra-ECU com-
munication in this document. It is a super set of inter-
intra-ECU communication
partition communication and intra-partition communi-
cation.
The communication within one partition of one ECU is called
intra-partition communication intra-partition communication. In this case, RTE can make
use of internal buffers and queues for communication.
Invalidateable VariableDataPrototypes are Variable-
invalidateable
DataPrototypes that have an invalidValue.
Variability defined with an VariationPoint or AttributeValue-
LinkTime variability
VariationPoint with latest bindingTime LinkTime.

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When a mode disabling is active, RTE and Basic Software

Scheduler disables the start of mode disabling dependent
ExecutableEntitys. The mode disabling is active during the
mode disabling
mode that is referenced in the mode disabling dependency and
during the transitions that enter and leave this mode. See also
section 4.4.1.
A RTEEvent (respectively a BswEvent) that starts a
RunnableEntity (respectively a BswSchedulableEntity)
mode disabling dependency can contain a disabledMode (respectively disabledInMode) as-
sociation which references a ModeDeclaration. This association
is called mode disabling dependency in this document.
A mode disabling dependent RunnableEntity or a
BswSchedulableEntity is triggered by an RTEEvent
respectively a BswEvent with a mode disabling depen-
mode disabling dependent Exe-
dency. RTE and Basic Software Scheduler prevent the start
cutableEntity
of those RunnableEntity or BswSchedulableEntity by
the RTEEvent / BswEvent, when the corresponding mode
disabling is active. See also section 4.4.1.
The instances of mode machines or ModeDeclarationGroups are
defined by the ModeDeclarationGroupPrototypes of the mode
managers.
Since a mode switch is not executed instantaneously, The RTE
or Basic Software Scheduler has to maintain its own states. For
mode machine instance each mode managers ModeDeclarationGroupPrototype, RTE
or Basic Software Scheduler has one state machine. This state
machine is called mode machine instance. For all mode users
of the same mode managers ModeDeclarationGroupPrototype,
RTE and Basic Software Scheduler uses the same mode ma-
chine instance. See also section 4.4.2.
Entering and leaving modes is initiated by a mode manager. A
mode manager is either a software component that provides a
p-port typed by a ModeSwitchInterface or a BSW module
mode manager
which defines in its BswModuleDescription a ModeDeclara-
tionGroupPrototype in the role providedModeGroup. See also
section 4.4.2.
A RunnableEntity or a BswSchedulableEntity that is trig-
gered by a ModeSwitchedAckEvent respectively a BswMod-
ModeSwitchAck ExecutableEn-
eSwitchedAckEvent connected to the mode managers Mod-
tity
eDeclarationGroupPrototype. It is called ModeSwitchAck
ExecutableEntity. See also section 4.4.1.
The communication of a mode switch from the mode manager
to the mode user using either the ModeSwitchInterface
mode switch notification
or providedModeGroup and requiredModeGroup ModeDeclara-
tionGroupPrototypes is called mode switch notification.
The port for receiving (or sending) a mode switch notification. For
mode switch port this purpose, a mode switch port is typed by a ModeSwitchIn-
terface.
An AUTOSAR SW-C or AUTOSAR Basic Software Module
that depends on modes is called a mode user. The depen-
dency can occur through a SwcModeSwitchEvent/BswMod-
mode user eSwitchEvent, a ModeAccessPoint for a provided/re-
quired mode switch port, or a accessedModeGroup for a
providedModeGroup/requiredModeGroup ModeDeclara-
tionGroupPrototype. See also section 4.4.1.

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NvBlockSwComponent is a SwComponentPrototype typed an

NvBlockSwComponent
NvBlockSwComponentType.
A RunnableEntity or a BswSchedulableEntity that is trig-
gered by a SwcModeSwitchEvent respectively a BswMod-
on-entry ExecutableEntity eSwitchEvent with ModeActivationKind entry is triggered on
entering the mode. It is called on-entry ExecutableEntity. See
also section 4.4.1.
A RunnableEntity or a BswSchedulableEntity that is trig-
gered by a SwcModeSwitchEvent respectively a BswMod-
on-exit ExecutableEntity eSwitchEvent with ModeActivationKind exit is triggered on
exiting the mode. It is called on-exit ExecutableEntity. See also
section 4.4.1.
A RunnableEntity or a BswSchedulableEntity that is trig-
gered by a SwcModeSwitchEvent respectively a BswMod-
on-transition ExecutableEntity eSwitchEvent with ModeActivationKind transition is triggered
on a transition between the two specified modes. It is called on-
transition ExecutableEntity. See also section 4.4.1.
Variability defined with an VariationPoint having an post-
post-build variability
BuildVariantCriterion
Variability defined with an VariationPoint or AttributeValue-
pre-build variability VariationPoint with latest bindingTime SystemDesignTime,
CodeGenerationTime, PreCompileTime or LinkTime.
Variability defined with an VariationPoint or AttributeValue-
PreCompileTime variability
VariationPoint with latest bindingTime PreCompileTime.
A preemption area defines a set of tasks which are sched-
uled cooperatively. Therefore tasks of one preemption area are
preemption area preempting each other only at dedicated schedule points. A
schedule point is not allowed to occur during the execution of
a RunnableEntity.
Primitive data types are the types implemented by a boolean,
primitive data type integer (up to 32 bits), floating point, or opaque type (up to 32
bits).
RP enabler flag A Boolean flag to permit run-time enabling/disabling bypass.
Identifier for bypassed event; passed as parameter to RP ser-
RP event id
vice function.
A buffer read/written by RP. The RP global buffer is con-
RP global buffer ceptually separated from the RTE managed buffer holding the
variable data prototype value.
A buffer used by RP to store the original variable data prototype
RP global measurement buffer value for subsequent measurement purposes before replace-
ment by the RP generated value.
A Boolean flag to permit conditional RunnableEntity execu-
RP runnable disabler flag tion. When conditional execution is configured the runnable is
executed if the flag is FALSE.
An AUTOSAR or vendor specific BSW module providing an RP
RP service component
service, e.g. XCP on CAN or XCP on Ethernet.
A definition of a service combining the symbol of the function
RP service profile providing the service and the permitted range of RP service
point ids.
An invocation of a function provided by a RP service compo-
RP service function
nent where data is sampled and/or stimulated.
A location where one or more RP service functions pro-
RP service point
vided by a RP service component are invoked.
RP service point id Integer identifier for RP service point.

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A wrapper function created by the RTE that is responsible for in-

voking the RP RP service function(s). The indirection thus
RP service invocation wrapper
introduced enables a post-build tool to replace the invocation of
the RTE generated function with arbitrary functionality.
RP stimulation enabler flag A Boolean flag to permit conditional RP stimulation.
Integer identifier used by RP to identify RTE event associated
RTE event identifier
with an RP service point.
The activation of a runnable is linked to the RTEEvent that leads
to the execution of the runnable. It is defined as the incident that
is referred to by the RTEEvent.
runnable activation
E. g., for a timing event, the corresponding runnable is activated,
when the timer expires, and for a data received event, the runn-
able is activated when the data is received by the RTE.
A runnable is started by the calling the C-function that imple-
runnable start
ments the runnable from within a started task.
A server is defined as one RunnableEntity which is the target
server of an OperationInvokedEvent. Call serialization is on activa-
tion of RunnableEntity.
A server that is triggered either by an OperationInvokedE-
vent or by an BswOperationInvokedEvent. In certain situa-
server ExecutableEntity
tions, RTE can implement the client server communication as a
simple function call.
A server that is triggered by an OperationInvokedEvent. It
has a mixed behavior between a runnable and a function call. In
server runnable
certain situations, RTE can implement the client server commu-
nication as a simple function call.
Variability defined with an VariationPoint or AttributeValue-
SystemDesignTime variability
VariationPoint with latest bindingTime SystemDesignTime.
A trigger emitter has the ability to release triggers which in turn
are activating triggered ExecutableEntitys. trigger emit-
trigger emitter ter are described by the meta model with provide trigger
ports, Trigger in role releasedTrigger, InternalTrig-
geringPoints and BswInternalTriggeringPoints.
trigger port A PortPrototype which is typed by an TriggerInterface
A trigger sink relies on the activation of Runnable Entities or Ba-
sic Software Schedulable Entities if a particular Trigger is raised.
trigger sink A trigger sink has a dedicated require trigger port(s) or /
and requiredTrigger Trigger (s) to communicate to the trigger
source(s).
A trigger source administrate the particular Trigger and informs
the RTE or Basic Software Scheduler if the Trigger is raised.
trigger source A trigger source has dedicated provide trigger port(s) or /
and releasedTrigger Trigger (s) to communicate to the trigger
sink(s).
A BswSchedulableEntity that is triggered at least by one
BswExternalTriggerOccurredEvent or BswInternal-
TriggerOccurredEvent. In particular cases, the Trigger
triggered BswSchedulableEntity Event Communication or the Inter Basic Software Schedulable
Entity Triggering is implemented by Basic Software Scheduler as
a direct function call of the triggered ExecutableEntity by the trig-
gering ExecutableEntity.

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A Runnable Entity or a Basic Software Schedulable Entity that

is triggered at least by one ExternalTriggerOccurredE-
vent / BswExternalTriggerOccurredEvent or Internal-
TriggerOccurredEvent / BswInternalTriggerOccurre-
triggered ExecutableEntity
dEvent. In particular cases, the Trigger Event Communication
or the Inter Runnable Triggering is implemented by RTE or Ba-
sic Software Scheduler as a direct function call of the triggered
ExecutableEntity by the triggering ExecutableEntity.
A Runnable Entity that is triggered at least by one External-
TriggerOccurredEvent or InternalTriggerOccurredE-
triggered runnable vent. In particular cases, the Trigger Event Communication or
the Inter Runnable Triggering is implemented by RTE as a direct
function call of the triggered runnable by the triggering runnable.
An unconnected port is a RPortPrototype or PPortProto-
type referenced by no AssemblySwConnectors and/or Dele-
gationSwConnectors, or with at least no DataMapping of any
unconnected port
of the elements in the port interface. Hint: PRPortPrototypes
are always treated as connected ports. (See [SWS_Rte_06030])

Table 1.1: Technical Terms

1.5 Document Conventions

Requirements in the SRS are referenced using [SRS_Rte_<n>] where <n> is the
requirement id. For example, [SRS_Rte_00098].
Requirements in the SWS are marked with [SWS_Rte_<nnnnn>] as the first text in a
paragraph. The scope of the requirement is marked with the half brackets.
Constraints on the input of the RTE are marked with
[SWS_Rte_CONSTR_<XXXXX>].
Technical terms are typeset in monospace font, e.g. Warp Core.
AUTOSAR Meta Class Names and Attributes are typeset in monospace font, e.g. Ap-
plicationSwComponentType. As a general rule, plural forms of AUTOSAR Meta
Class Names and Attributes are created by adding "s" to the singular form, e.g. Port-
Prototypes. By this means the document resembles terminology used in the AU-
TOSAR XML Schema.
AUTOSAR ECU Configuration Parameters are typeset in monospace font, e.g. Rte-
CodeVendorId. As a general rule, plural forms of ECU Configuration Parameters
are created by adding "s" to the singular form, e.g. RteEventToTaskMappings. By
this means the document resembles terminology used in the ARXML file of AUTOSAR
ECU Configuration Parameter Definition.
API function calls are also marked with monospace font, like Rte_EjectWarpCore.

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1.6 Requirements Tracing

The following table references the requirements specified in [12] as well as [13] and
links to the fulfillment of these. Please note that if column Satisfied by is empty for a
specific requirement this means that this requirement is not fulfilled by this document.
Requirement Description Satisfied by
[SRS_BSW_00004] All Basic SW Modules shall [SWS_Rte_07692]
perform a pre-processor check
of the versions of all imported
include files
[SRS_BSW_00007] All Basic SW Modules written in [SWS_Rte_01168] [SWS_Rte_03715]
C language shall conform to the [SWS_Rte_06804] [SWS_Rte_06805]
MISRA C 2012 Standard. [SWS_Rte_06806] [SWS_Rte_06807]
[SWS_Rte_06808] [SWS_Rte_06809]
[SWS_Rte_06810] [SWS_Rte_07086]
[SWS_Rte_07300]
[SRS_BSW_00101] The Basic Software Module shall [SWS_Rte_04546] [SWS_Rte_04547]
be able to initialize variables and [SWS_Rte_04548] [SWS_Rte_04549]
hardware in a separate [SWS_Rte_04550] [SWS_Rte_04551]
initialization function [SWS_Rte_07270] [SWS_Rte_07271]
[SWS_Rte_07273]
[SRS_BSW_00161] The AUTOSAR Basic Software [SWS_Rte_02734]
shall provide a microcontroller
abstraction layer which provides
a standardized interface to
higher software layers
[SRS_BSW_00300] All AUTOSAR Basic Software [SWS_Rte_01003] [SWS_Rte_01157]
Modules shall be identified by an [SWS_Rte_01158] [SWS_Rte_01161]
unambiguous name [SWS_Rte_01169] [SWS_Rte_01171]
[SWS_Rte_07122] [SWS_Rte_07139]
[SWS_Rte_07284] [SWS_Rte_07288]
[SWS_Rte_07295] [SWS_Rte_07504]
[SWS_Rte_07922]
[SRS_BSW_00305] Data types naming convention [SWS_Rte_01055] [SWS_Rte_01150]
[SWS_Rte_02301] [SWS_Rte_03714]
[SWS_Rte_03731] [SWS_Rte_03733]
[SRS_BSW_00307] Global variables naming [SWS_Rte_01171] [SWS_Rte_03712]
convention [SWS_Rte_07284]
[SRS_BSW_00308] AUTOSAR Basic Software [SWS_Rte_03786] [SWS_Rte_07121]
Modules shall not define global [SWS_Rte_07502] [SWS_Rte_07921]
data in their header files, but in
the C file
[SRS_BSW_00310] API naming convention [SWS_Rte_01071] [SWS_Rte_01072]
[SWS_Rte_01083] [SWS_Rte_01091]
[SWS_Rte_01092] [SWS_Rte_01102]
[SWS_Rte_01111] [SWS_Rte_01118]
[SWS_Rte_01120] [SWS_Rte_01123]
[SWS_Rte_01206] [SWS_Rte_01252]
[SWS_Rte_02569] [SWS_Rte_02631]
[SWS_Rte_02725] [SWS_Rte_03550]
[SWS_Rte_03553] [SWS_Rte_03560]
[SWS_Rte_03565] [SWS_Rte_03741]
[SWS_Rte_03744] [SWS_Rte_03800]
[SWS_Rte_03928] [SWS_Rte_03929]

32 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_05509] [SWS_Rte_06207]
[SWS_Rte_07367] [SWS_Rte_07390]
[SWS_Rte_07394] [SWS_Rte_07556]
[SRS_BSW_00312] Shared code shall be reentrant [SWS_Rte_01012]
[SRS_BSW_00327] Error values naming convention [SWS_Rte_01058] [SWS_Rte_01060]
[SWS_Rte_01061] [SWS_Rte_01064]
[SWS_Rte_01065] [SWS_Rte_01317]
[SWS_Rte_02571] [SWS_Rte_02594]
[SWS_Rte_02702] [SWS_Rte_02739]
[SWS_Rte_02747] [SWS_Rte_02757]
[SWS_Rte_07054] [SWS_Rte_07289]
[SWS_Rte_07290] [SWS_Rte_07384]
[SWS_Rte_07562] [SWS_Rte_07563]
[SWS_Rte_07655] [SWS_Rte_08065]
[SWS_Rte_08551] [SWS_Rte_08725]
[SWS_Rte_08726]
[SRS_BSW_00330] It shall be allowed to use macros [SWS_Rte_01274]
instead of functions where
source code is used and runtime
is critical
[SRS_BSW_00336] Basic SW module shall be able [SWS_Rte_07274] [SWS_Rte_07275]
to shutdown [SWS_Rte_07277]
[SRS_BSW_00337] Classification of development [SWS_Rte_06631] [SWS_Rte_06632]
errors [SWS_Rte_06633] [SWS_Rte_06634]
[SWS_Rte_06635] [SWS_Rte_06637]
[SWS_Rte_07675] [SWS_Rte_07676]
[SWS_Rte_07682] [SWS_Rte_07683]
[SWS_Rte_07684] [SWS_Rte_07685]
[SRS_BSW_00342] It shall be possible to create an [SWS_Rte_07511]
AUTOSAR ECU out of modules
provided as source code and
modules provided as object
code, even mixed
[SRS_BSW_00346] All AUTOSAR Basic Software [SWS_Rte_06638]
Modules shall provide at least a
basic set of module files
[SRS_BSW_00347] A Naming seperation of different [SWS_Rte_06203] [SWS_Rte_06532]
instances of BSW drivers shall [SWS_Rte_06535] [SWS_Rte_06536]
be in place [SWS_Rte_07093] [SWS_Rte_07250]
[SWS_Rte_07253] [SWS_Rte_07255]
[SWS_Rte_07260] [SWS_Rte_07263]
[SWS_Rte_07266] [SWS_Rte_07282]
[SWS_Rte_07295] [SWS_Rte_07504]
[SWS_Rte_07528] [SWS_Rte_07694]
[SWS_Rte_08765] [SWS_Rte_08789]
[SWS_Rte_08790]
[SRS_BSW_00353] All integer type definitions of [SWS_Rte_01163] [SWS_Rte_01164]
target and compiler specific [SWS_Rte_07104] [SWS_Rte_07641]
scope shall be placed and
organized in a single type
header
[SRS_BSW_00384] The Basic Software Module [SWS_Rte_01412]
specifications shall specify at
least in the description which
other modules they require

33 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_BSW_00407] Each BSW module shall provide [SWS_Rte_07278] [SWS_Rte_07279]

a function to read out the version [SWS_Rte_07280] [SWS_Rte_07281]
information of a dedicated
module implementation
[SRS_BSW_00415] Interfaces which are provided [SWS_Rte_07295] [SWS_Rte_07500]
exclusively for one module shall [SWS_Rte_07501] [SWS_Rte_07503]
be separated into a dedicated [SWS_Rte_07504] [SWS_Rte_07505]
header file [SWS_Rte_07506] [SWS_Rte_07510]
[SRS_BSW_00447] Standardizing Include file [SWS_Rte_07120]
structure of BSW Modules
Implementing Autosar Service
[SRS_Com_02044] AUTOSAR COM and LargeData [SWS_Rte_01407] [SWS_Rte_01411]
COM shall provide a transmit
confirmation function
[SRS_Rte_00003] Tracing of sender-receiver [SWS_Rte_01238] [SWS_Rte_01240]
communication [SWS_Rte_01241] [SWS_Rte_01242]
[SWS_Rte_01357] [SWS_Rte_03814]
[SWS_Rte_04531] [SWS_Rte_04532]
[SWS_Rte_07639]
[SRS_Rte_00004] Tracing of client-server [SWS_Rte_01238] [SWS_Rte_01240]
communication [SWS_Rte_01241] [SWS_Rte_01242]
[SWS_Rte_01357] [SWS_Rte_03814]
[SWS_Rte_04531] [SWS_Rte_04532]
[SWS_Rte_07639]
[SRS_Rte_00005] The RTE generator shall support [SWS_Rte_01320] [SWS_Rte_01322]
"trace" builds [SWS_Rte_01323] [SWS_Rte_01327]
[SWS_Rte_01328] [SWS_Rte_03607]
[SWS_Rte_05091] [SWS_Rte_05092]
[SWS_Rte_05093] [SWS_Rte_05106]
[SWS_Rte_06031] [SWS_Rte_08000]
[SRS_Rte_00008] VFB tracing configuration [SWS_Rte_01236] [SWS_Rte_01320]
[SWS_Rte_01321] [SWS_Rte_01322]
[SWS_Rte_01323] [SWS_Rte_01324]
[SWS_Rte_01325] [SWS_Rte_03607]
[SWS_Rte_05091] [SWS_Rte_05092]
[SWS_Rte_05093] [SWS_Rte_08000]
[SRS_Rte_00011] Support for multiple Application [SWS_Rte_01012] [SWS_Rte_01013]
Software Component instances. [SWS_Rte_01016] [SWS_Rte_01126]
[SWS_Rte_01148] [SWS_Rte_01349]
[SWS_Rte_02001] [SWS_Rte_02002]
[SWS_Rte_02008] [SWS_Rte_02009]
[SWS_Rte_02015] [SWS_Rte_03015]
[SWS_Rte_03711] [SWS_Rte_03716]
[SWS_Rte_03717] [SWS_Rte_03718]
[SWS_Rte_03719] [SWS_Rte_03720]
[SWS_Rte_03721] [SWS_Rte_03722]
[SWS_Rte_03793] [SWS_Rte_03806]
[SWS_Rte_06031] [SWS_Rte_07132]
[SWS_Rte_07194] [SWS_Rte_07225]
[SWS_Rte_07837] [SWS_Rte_07838]
[SWS_Rte_07839] [SWS_Rte_08091]
[SRS_Rte_00012] Multiple instantiated AUTOSAR [SWS_Rte_01007] [SWS_Rte_02015]
software components delivered [SWS_Rte_03015]
as binary code shall share code

34 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00013] Per-instance memory [SWS_Rte_02301] [SWS_Rte_02302]

[SWS_Rte_02303] [SWS_Rte_02304]
[SWS_Rte_02305] [SWS_Rte_03782]
[SWS_Rte_05062] [SWS_Rte_07045]
[SWS_Rte_07133] [SWS_Rte_07134]
[SWS_Rte_07135] [SWS_Rte_07161]
[SWS_Rte_07182] [SWS_Rte_07183]
[SWS_Rte_07184] [SWS_Rte_08303]
[SWS_Rte_08304]
[SRS_Rte_00017] Rejection of inconsistent [SWS_Rte_01004] [SWS_Rte_02751]
component implementations [SWS_Rte_07123] [SWS_Rte_07510]
[SRS_Rte_00018] Rejection of invalid [SWS_Rte_01287] [SWS_Rte_01313]
configurations [SWS_Rte_01358] [SWS_Rte_01373]
[SWS_Rte_02009] [SWS_Rte_02051]
[SWS_Rte_02204] [SWS_Rte_02254]
[SWS_Rte_02500] [SWS_Rte_02526]
[SWS_Rte_02529] [SWS_Rte_02579]
[SWS_Rte_02662] [SWS_Rte_02663]
[SWS_Rte_02664] [SWS_Rte_02670]
[SWS_Rte_02706] [SWS_Rte_02723]
[SWS_Rte_02730] [SWS_Rte_02733]
[SWS_Rte_02738] [SWS_Rte_02750]
[SWS_Rte_03010] [SWS_Rte_03014]
[SWS_Rte_03018] [SWS_Rte_03019]
[SWS_Rte_03526] [SWS_Rte_03527]
[SWS_Rte_03594] [SWS_Rte_03605]
[SWS_Rte_03755] [SWS_Rte_03764]
[SWS_Rte_03813] [SWS_Rte_03817]
[SWS_Rte_03820] [SWS_Rte_03823]
[SWS_Rte_03826] [SWS_Rte_03831]
[SWS_Rte_03851] [SWS_Rte_03862]
[SWS_Rte_03866] [SWS_Rte_03950]
[SWS_Rte_03951] [SWS_Rte_03970]
[SWS_Rte_03986] [SWS_Rte_03987]
[SWS_Rte_03988] [SWS_Rte_03989]
[SWS_Rte_05111] [SWS_Rte_05149]
[SWS_Rte_06502] [SWS_Rte_06503]
[SWS_Rte_06504] [SWS_Rte_06505]
[SWS_Rte_06508] [SWS_Rte_06509]
[SWS_Rte_06511] [SWS_Rte_06547]
[SWS_Rte_06548] [SWS_Rte_06610]
[SWS_Rte_06613] [SWS_Rte_06719]
[SWS_Rte_06724] [SWS_Rte_06732]
[SWS_Rte_06768] [SWS_Rte_06769]
[SWS_Rte_06770] [SWS_Rte_06801]
[SWS_Rte_06802] [SWS_Rte_06803]
[SWS_Rte_06814] [SWS_Rte_07005]

35 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_07006] [SWS_Rte_07007]
[SWS_Rte_07026] [SWS_Rte_07028]
[SWS_Rte_07039] [SWS_Rte_07044]
[SWS_Rte_07057] [SWS_Rte_07075]
[SWS_Rte_07101] [SWS_Rte_07135]
[SWS_Rte_07157] [SWS_Rte_07170]
[SWS_Rte_07175] [SWS_Rte_07181]
[SWS_Rte_07190] [SWS_Rte_07191]
[SWS_Rte_07192] [SWS_Rte_07343]
[SWS_Rte_07347] [SWS_Rte_07353]
[SWS_Rte_07356] [SWS_Rte_07402]
[SWS_Rte_07403] [SWS_Rte_07516]
[SWS_Rte_07524] [SWS_Rte_07545]
[SWS_Rte_07548] [SWS_Rte_07549]
[SWS_Rte_07564] [SWS_Rte_07588]
[SWS_Rte_07610] [SWS_Rte_07621]
[SWS_Rte_07638] [SWS_Rte_07640]
[SWS_Rte_07642] [SWS_Rte_07654]
[SWS_Rte_07662] [SWS_Rte_07667]
[SWS_Rte_07670] [SWS_Rte_07681]
[SWS_Rte_07686] [SWS_Rte_07803]
[SWS_Rte_07808] [SWS_Rte_07809]
[SWS_Rte_07810] [SWS_Rte_07811]
[SWS_Rte_07812] [SWS_Rte_07842]
[SWS_Rte_07845] [SWS_Rte_07927]
[SWS_Rte_08072] [SWS_Rte_08076]
[SWS_Rte_08311] [SWS_Rte_08417]
[SWS_Rte_08423] [SWS_Rte_08603]
[SWS_Rte_08604] [SWS_Rte_08605]
[SWS_Rte_08700] [SWS_Rte_08767]
[SWS_Rte_08768] [SWS_Rte_08788]
[SWS_Rte_08800]
[SRS_Rte_00019] RTE is the communication [SWS_Rte_01264] [SWS_Rte_02527]
infrastructure [SWS_Rte_02528] [SWS_Rte_02610]
[SWS_Rte_02611] [SWS_Rte_02612]
[SWS_Rte_03000] [SWS_Rte_03001]
[SWS_Rte_03002] [SWS_Rte_03004]
[SWS_Rte_03005] [SWS_Rte_03007]
[SWS_Rte_03008] [SWS_Rte_03760]
[SWS_Rte_03761] [SWS_Rte_03762]
[SWS_Rte_03769] [SWS_Rte_03775]
[SWS_Rte_03776] [SWS_Rte_03795]
[SWS_Rte_03796] [SWS_Rte_04515]
[SWS_Rte_04516] [SWS_Rte_04520]
[SWS_Rte_04522] [SWS_Rte_04526]
[SWS_Rte_04527] [SWS_Rte_05065]
[SWS_Rte_05084] [SWS_Rte_05085]
[SWS_Rte_05500] [SWS_Rte_06000]
[SWS_Rte_06011] [SWS_Rte_06023]
[SWS_Rte_06024] [SWS_Rte_07662]
[SWS_Rte_08001] [SWS_Rte_08002]
[SWS_Rte_08586] [SWS_Rte_08587]
[SRS_Rte_00020] Access to OS [SWS_Rte_02250]
[SRS_Rte_00021] Per-ECU RTE customization [SWS_Rte_01316] [SWS_Rte_05000]
[SRS_Rte_00022] Interaction with call-backs [SWS_Rte_01165]

36 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00023] RTE Overheads [SWS_Rte_05053]

[SRS_Rte_00024] Source-code AUTOSAR [SWS_Rte_01000] [SWS_Rte_01195]
software components [SWS_Rte_01315] [SWS_Rte_07120]
[SRS_Rte_00025] Static communication [SWS_Rte_06026]
[SRS_Rte_00027] VFB to RTE mapping shall be [SWS_Rte_01274] [SWS_Rte_02200]
semantic preserving [SWS_Rte_02201] [SWS_Rte_02649]
[SWS_Rte_02651] [SWS_Rte_02653]
[SWS_Rte_02654] [SWS_Rte_02657]
[SWS_Rte_04544] [SWS_Rte_07346]
[SWS_Rte_08700] [SWS_Rte_08703]
[SWS_Rte_08705] [SWS_Rte_08707]
[SWS_Rte_08709]
[SRS_Rte_00028] "1:n" Sender-receiver [SWS_Rte_01071] [SWS_Rte_01072]
communication [SWS_Rte_01082] [SWS_Rte_01091]
[SWS_Rte_01092] [SWS_Rte_01135]
[SWS_Rte_02631] [SWS_Rte_02633]
[SWS_Rte_02635] [SWS_Rte_04526]
[SWS_Rte_06023] [SWS_Rte_06024]
[SWS_Rte_07394] [SWS_Rte_07824]
[SWS_Rte_07825] [SWS_Rte_07826]
[SWS_Rte_07827] [SWS_Rte_08413]
[SWS_Rte_08414] [SWS_Rte_08415]
[SWS_Rte_08586] [SWS_Rte_08587]
[SWS_Rte_08592] [SWS_Rte_08593]
[SWS_Rte_08594] [SWS_Rte_08595]
[SRS_Rte_00029] "n:1" Client-server [SWS_Rte_01102] [SWS_Rte_01109]
communication [SWS_Rte_01133] [SWS_Rte_01166]
[SWS_Rte_01359] [SWS_Rte_02579]
[SWS_Rte_03763] [SWS_Rte_03767]
[SWS_Rte_03768] [SWS_Rte_03769]
[SWS_Rte_03770] [SWS_Rte_04517]
[SWS_Rte_04519] [SWS_Rte_05111]
[SWS_Rte_05193] [SWS_Rte_06019]
[SWS_Rte_07023] [SWS_Rte_07024]
[SWS_Rte_07025] [SWS_Rte_07026]
[SWS_Rte_07027] [SWS_Rte_07845]
[SWS_Rte_08310]
[SRS_Rte_00031] Multiple Runnable Entities [SWS_Rte_01016] [SWS_Rte_01126]
[SWS_Rte_01130] [SWS_Rte_01132]
[SWS_Rte_02202] [SWS_Rte_06713]
[SRS_Rte_00032] Data consistency mechanisms [SWS_Rte_01122] [SWS_Rte_02740]
[SWS_Rte_02741] [SWS_Rte_02743]
[SWS_Rte_02744] [SWS_Rte_02745]
[SWS_Rte_02746] [SWS_Rte_03500]
[SWS_Rte_03504] [SWS_Rte_03514]
[SWS_Rte_03516] [SWS_Rte_03517]
[SWS_Rte_03519] [SWS_Rte_03595]
[SWS_Rte_03739] [SWS_Rte_03740]
[SWS_Rte_03812] [SWS_Rte_03999]
[SWS_Rte_04545] [SWS_Rte_05164]
[SWS_Rte_07005] [SWS_Rte_08318]
[SWS_Rte_08319] [SWS_Rte_08320]
[SWS_Rte_08321] [SWS_Rte_08322]
[SWS_Rte_08419]

37 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00033] Serialized execution of Server [SWS_Rte_02527] [SWS_Rte_02528]

Runnable Entities [SWS_Rte_02529] [SWS_Rte_02530]
[SWS_Rte_04515] [SWS_Rte_04518]
[SWS_Rte_04522] [SWS_Rte_07008]
[SWS_Rte_08001] [SWS_Rte_08002]
[SRS_Rte_00036] Assignment to OS Applications [SWS_Rte_07347]
[SRS_Rte_00045] Standardized VFB tracing [SWS_Rte_01238] [SWS_Rte_01239]
interface [SWS_Rte_01240] [SWS_Rte_01241]
[SWS_Rte_01242] [SWS_Rte_01243]
[SWS_Rte_01244] [SWS_Rte_01245]
[SWS_Rte_01246] [SWS_Rte_01247]
[SWS_Rte_01248] [SWS_Rte_01249]
[SWS_Rte_01250] [SWS_Rte_01251]
[SWS_Rte_01319] [SWS_Rte_01321]
[SWS_Rte_01326] [SWS_Rte_03814]
[SWS_Rte_04531] [SWS_Rte_04532]
[SWS_Rte_04533] [SWS_Rte_04534]
[SWS_Rte_06032] [SWS_Rte_06113]
[SWS_Rte_06114] [SWS_Rte_07639]
[SRS_Rte_00046] Support for "Executable Entity [SWS_Rte_01120] [SWS_Rte_01122]
runs inside" Exclusive Areas [SWS_Rte_01123] [SWS_Rte_02740]
[SWS_Rte_02741] [SWS_Rte_02743]
[SWS_Rte_02744] [SWS_Rte_02745]
[SWS_Rte_02746] [SWS_Rte_03500]
[SWS_Rte_03515] [SWS_Rte_07250]
[SWS_Rte_07251] [SWS_Rte_07252]
[SWS_Rte_07253] [SWS_Rte_07254]
[SWS_Rte_07522] [SWS_Rte_07523]
[SWS_Rte_07524] [SWS_Rte_07578]
[SWS_Rte_07579] [SWS_Rte_08318]
[SWS_Rte_08319] [SWS_Rte_08320]
[SWS_Rte_08321] [SWS_Rte_08322]
[SRS_Rte_00048] RTE Generator input [SWS_Rte_08769] [SWS_Rte_08770]
[SWS_Rte_08771] [SWS_Rte_08772]
[SWS_Rte_08773] [SWS_Rte_08774]
[SWS_Rte_08775] [SWS_Rte_08776]
[SRS_Rte_00049] Construction of task bodies [SWS_Rte_02204] [SWS_Rte_02254]
[SWS_Rte_06200] [SWS_Rte_06201]
[SWS_Rte_07516] [SWS_Rte_08417]
[SRS_Rte_00051] RTE API mapping [SWS_Rte_01053] [SWS_Rte_01055]
[SWS_Rte_01119] [SWS_Rte_01123]
[SWS_Rte_01132] [SWS_Rte_01146]
[SWS_Rte_01148] [SWS_Rte_01153]
[SWS_Rte_01156] [SWS_Rte_01159]
[SWS_Rte_01197] [SWS_Rte_01266]
[SWS_Rte_01268] [SWS_Rte_01269]
[SWS_Rte_01274] [SWS_Rte_01280]
[SWS_Rte_01281] [SWS_Rte_01282]
[SWS_Rte_01283] [SWS_Rte_01284]
[SWS_Rte_01285] [SWS_Rte_01286]
[SWS_Rte_01287] [SWS_Rte_01288]

38 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_01289] [SWS_Rte_01290]
[SWS_Rte_01293] [SWS_Rte_01294]
[SWS_Rte_01296] [SWS_Rte_01297]
[SWS_Rte_01298] [SWS_Rte_01299]
[SWS_Rte_01300] [SWS_Rte_01301]
[SWS_Rte_01302] [SWS_Rte_01303]
[SWS_Rte_01304] [SWS_Rte_01305]
[SWS_Rte_01306] [SWS_Rte_01307]
[SWS_Rte_01308] [SWS_Rte_01309]
[SWS_Rte_01310] [SWS_Rte_01312]
[SWS_Rte_01313] [SWS_Rte_01342]
[SWS_Rte_01343] [SWS_Rte_01349]
[SWS_Rte_01354] [SWS_Rte_01355]
[SWS_Rte_01363] [SWS_Rte_01364]
[SWS_Rte_01365] [SWS_Rte_01366]
[SWS_Rte_02301] [SWS_Rte_02302]
[SWS_Rte_02588] [SWS_Rte_02589]
[SWS_Rte_02607] [SWS_Rte_02608]
[SWS_Rte_02613] [SWS_Rte_02614]
[SWS_Rte_02615] [SWS_Rte_02616]
[SWS_Rte_02617] [SWS_Rte_02618]
[SWS_Rte_02619] [SWS_Rte_02620]
[SWS_Rte_02621] [SWS_Rte_02623]
[SWS_Rte_02632] [SWS_Rte_02666]
[SWS_Rte_02676] [SWS_Rte_02677]
[SWS_Rte_02678] [SWS_Rte_02679]
[SWS_Rte_02730] [SWS_Rte_03014]
[SWS_Rte_03562] [SWS_Rte_03567]
[SWS_Rte_03602] [SWS_Rte_03603]
[SWS_Rte_03605] [SWS_Rte_03706]
[SWS_Rte_03707] [SWS_Rte_03716]
[SWS_Rte_03717] [SWS_Rte_03718]
[SWS_Rte_03719] [SWS_Rte_03720]
[SWS_Rte_03721] [SWS_Rte_03723]
[SWS_Rte_03725] [SWS_Rte_03726]
[SWS_Rte_03730] [SWS_Rte_03731]
[SWS_Rte_03733] [SWS_Rte_03734]
[SWS_Rte_03739] [SWS_Rte_03740]
[SWS_Rte_03746] [SWS_Rte_03752]
[SWS_Rte_03791] [SWS_Rte_03799]
[SWS_Rte_03801] [SWS_Rte_03812]
[SWS_Rte_03835] [SWS_Rte_03837]
[SWS_Rte_03927] [SWS_Rte_03930]
[SWS_Rte_03949] [SWS_Rte_03952]
[SWS_Rte_04545] [SWS_Rte_05510]
[SWS_Rte_05511] [SWS_Rte_06205]
[SWS_Rte_06208] [SWS_Rte_06209]
[SWS_Rte_06639] [SWS_Rte_06713]

39 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_06817] [SWS_Rte_06818]
[SWS_Rte_06819] [SWS_Rte_06820]
[SWS_Rte_06821] [SWS_Rte_06823]
[SWS_Rte_06827] [SWS_Rte_06831]
[SWS_Rte_07137] [SWS_Rte_07138]
[SWS_Rte_07170] [SWS_Rte_07225]
[SWS_Rte_07226] [SWS_Rte_07227]
[SWS_Rte_07228] [SWS_Rte_07291]
[SWS_Rte_07395] [SWS_Rte_07396]
[SWS_Rte_07416] [SWS_Rte_07677]
[SWS_Rte_07837] [SWS_Rte_07838]
[SWS_Rte_07839] [SWS_Rte_07850]
[SWS_Rte_07851] [SWS_Rte_08073]
[SWS_Rte_08091] [SWS_Rte_08092]
[SWS_Rte_08093] [SWS_Rte_08094]
[SWS_Rte_08309] [SWS_Rte_08312]
[SWS_Rte_08777] [SWS_Rte_08778]
[SWS_Rte_08779] [SWS_Rte_08780]
[SWS_Rte_08782] [SWS_Rte_08783]
[SWS_Rte_08784] [SWS_Rte_08785]
[SWS_Rte_08786]
[SRS_Rte_00052] Initialization and finalization of [SWS_Rte_02503] [SWS_Rte_02562]
components [SWS_Rte_02564] [SWS_Rte_02707]
[SWS_Rte_03852] [SWS_Rte_07046]
[SRS_Rte_00055] RTE use of global namespace [SWS_Rte_01171] [SWS_Rte_06706]
[SWS_Rte_06707] [SWS_Rte_06708]
[SWS_Rte_06812] [SWS_Rte_06813]
[SWS_Rte_07036] [SWS_Rte_07037]
[SWS_Rte_07104] [SWS_Rte_07109]
[SWS_Rte_07110] [SWS_Rte_07111]
[SWS_Rte_07114] [SWS_Rte_07115]
[SWS_Rte_07116] [SWS_Rte_07117]
[SWS_Rte_07118] [SWS_Rte_07119]
[SWS_Rte_07144] [SWS_Rte_07145]
[SWS_Rte_07146] [SWS_Rte_07148]
[SWS_Rte_07149] [SWS_Rte_07162]
[SWS_Rte_07163] [SWS_Rte_07166]
[SWS_Rte_07284]
[SRS_Rte_00059] RTE API shall pass "in" primitive [SWS_Rte_01017] [SWS_Rte_01020]
data types by value [SWS_Rte_06805] [SWS_Rte_06807]
[SWS_Rte_07069] [SWS_Rte_07070]
[SWS_Rte_07071] [SWS_Rte_07072]
[SWS_Rte_07073] [SWS_Rte_07074]
[SWS_Rte_07076] [SWS_Rte_07077]
[SWS_Rte_07078] [SWS_Rte_07079]
[SWS_Rte_07080] [SWS_Rte_07081]
[SWS_Rte_07083] [SWS_Rte_07084]
[SWS_Rte_07661] [SWS_Rte_08300]
[SRS_Rte_00060] RTE API shall pass "in" [SWS_Rte_01018] [SWS_Rte_05107]
composite data types by [SWS_Rte_05108] [SWS_Rte_06804]
reference [SWS_Rte_06807] [SWS_Rte_07082]
[SWS_Rte_07084] [SWS_Rte_07086]

40 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00061] "in/out" and "out" parameters [SWS_Rte_01017] [SWS_Rte_01018]

[SWS_Rte_01019] [SWS_Rte_01020]
[SWS_Rte_05107] [SWS_Rte_05108]
[SWS_Rte_05109] [SWS_Rte_06806]
[SWS_Rte_07082] [SWS_Rte_07083]
[SWS_Rte_07084] [SWS_Rte_07661]
[SRS_Rte_00062] Local access to basic software [SWS_Rte_02051]
components
[SRS_Rte_00065] Deterministic generation [SWS_Rte_02514] [SWS_Rte_05150]
[SRS_Rte_00068] Signal initial values [SWS_Rte_02517] [SWS_Rte_03852]
[SWS_Rte_05078] [SWS_Rte_07046]
[SWS_Rte_07642] [SWS_Rte_07668]
[SWS_Rte_08311]
[SRS_Rte_00069] Communication timeouts [SWS_Rte_01064] [SWS_Rte_01095]
[SWS_Rte_01107] [SWS_Rte_01114]
[SWS_Rte_03754] [SWS_Rte_03758]
[SWS_Rte_03759] [SWS_Rte_03763]
[SWS_Rte_03767] [SWS_Rte_03768]
[SWS_Rte_03770] [SWS_Rte_03771]
[SWS_Rte_03772] [SWS_Rte_06002]
[SWS_Rte_06013] [SWS_Rte_07056]
[SWS_Rte_07059] [SWS_Rte_07060]
[SWS_Rte_08310]
[SRS_Rte_00070] Invocation order of Runnable [SWS_Rte_02207]
Entities
[SRS_Rte_00072] Activation of Runnable Entities [SWS_Rte_01131] [SWS_Rte_01133]
[SWS_Rte_01135] [SWS_Rte_01137]
[SWS_Rte_01166] [SWS_Rte_01292]
[SWS_Rte_01359] [SWS_Rte_02203]
[SWS_Rte_02512] [SWS_Rte_02697]
[SWS_Rte_02758] [SWS_Rte_03520]
[SWS_Rte_03523] [SWS_Rte_03524]
[SWS_Rte_03526] [SWS_Rte_03527]
[SWS_Rte_03530] [SWS_Rte_03531]
[SWS_Rte_03532] [SWS_Rte_05193]
[SWS_Rte_06748] [SWS_Rte_06759]
[SWS_Rte_06760] [SWS_Rte_06771]
[SWS_Rte_07023] [SWS_Rte_07024]
[SWS_Rte_07025] [SWS_Rte_07026]
[SWS_Rte_07027] [SWS_Rte_07061]
[SWS_Rte_07177] [SWS_Rte_07178]
[SWS_Rte_07207] [SWS_Rte_07208]
[SWS_Rte_07379] [SWS_Rte_07403]
[SWS_Rte_07515] [SWS_Rte_07575]
[SWS_Rte_08791]
[SRS_Rte_00073] Atomic transport of Data [SWS_Rte_04527]
Elements
[SRS_Rte_00075] API for accessing per-instance [SWS_Rte_01118] [SWS_Rte_01119]
memory [SWS_Rte_06203] [SWS_Rte_06204]
[SWS_Rte_06205]

41 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00077] Instantiation of per-instance [SWS_Rte_02303] [SWS_Rte_02304]

memory [SWS_Rte_02305] [SWS_Rte_03782]
[SWS_Rte_05062] [SWS_Rte_07045]
[SWS_Rte_07133] [SWS_Rte_07161]
[SWS_Rte_07182] [SWS_Rte_07183]
[SWS_Rte_07184] [SWS_Rte_08303]
[SWS_Rte_08304]
[SRS_Rte_00078] Support for Data Element [SWS_Rte_01206] [SWS_Rte_01282]
Invalidation [SWS_Rte_02309] [SWS_Rte_02589]
[SWS_Rte_02590] [SWS_Rte_02594]
[SWS_Rte_02599] [SWS_Rte_02600]
[SWS_Rte_02603] [SWS_Rte_02607]
[SWS_Rte_02609] [SWS_Rte_02626]
[SWS_Rte_02629] [SWS_Rte_02666]
[SWS_Rte_02702] [SWS_Rte_03778]
[SWS_Rte_03800] [SWS_Rte_03801]
[SWS_Rte_03802] [SWS_Rte_05024]
[SWS_Rte_05025] [SWS_Rte_05026]
[SWS_Rte_05030] [SWS_Rte_05032]
[SWS_Rte_05048] [SWS_Rte_05049]
[SWS_Rte_05064] [SWS_Rte_06727]
[SWS_Rte_06820] [SWS_Rte_06821]
[SWS_Rte_06822] [SWS_Rte_06823]
[SWS_Rte_06824] [SWS_Rte_06825]
[SWS_Rte_06829] [SWS_Rte_07031]
[SWS_Rte_07032] [SWS_Rte_08004]
[SWS_Rte_08005] [SWS_Rte_08007]
[SWS_Rte_08008] [SWS_Rte_08009]
[SWS_Rte_08046] [SWS_Rte_08047]
[SWS_Rte_08048] [SWS_Rte_08049]
[SWS_Rte_08050] [SWS_Rte_08096]
[SWS_Rte_08097] [SWS_Rte_08098]
[SWS_Rte_08099] [SWS_Rte_08100]
[SWS_Rte_08101] [SWS_Rte_08102]
[SWS_Rte_08405] [SWS_Rte_08406]
[SWS_Rte_08407] [SWS_Rte_08501]
[SRS_Rte_00079] Single asynchronous [SWS_Rte_01105] [SWS_Rte_01109]
client-server interaction [SWS_Rte_01133] [SWS_Rte_01166]
[SWS_Rte_01359] [SWS_Rte_02658]
[SWS_Rte_03765] [SWS_Rte_03766]
[SWS_Rte_03771] [SWS_Rte_03772]
[SWS_Rte_05193] [SWS_Rte_07023]
[SWS_Rte_07024] [SWS_Rte_07025]
[SWS_Rte_07026] [SWS_Rte_07027]
[SWS_Rte_08800]
[SRS_Rte_00080] Multiple requests of servers [SWS_Rte_03769] [SWS_Rte_04516]
[SWS_Rte_04520]

42 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00082] Standardized communication [SWS_Rte_02579] [SWS_Rte_02649]

protocol [SWS_Rte_02651] [SWS_Rte_02653]
[SWS_Rte_02654] [SWS_Rte_02655]
[SWS_Rte_02656] [SWS_Rte_02657]
[SWS_Rte_04544] [SWS_Rte_05111]
[SWS_Rte_07346] [SWS_Rte_07413]
[SWS_Rte_08700] [SWS_Rte_08703]
[SWS_Rte_08705] [SWS_Rte_08707]
[SWS_Rte_08709] [SWS_Rte_08711]
[SWS_Rte_08712]
[SRS_Rte_00083] Optimization for source-code [SWS_Rte_01152] [SWS_Rte_01274]
components
[SRS_Rte_00084] Support infrastructural errors [SWS_Rte_01318] [SWS_Rte_02593]
[SRS_Rte_00087] Software Module Header File [SWS_Rte_01000] [SWS_Rte_01004]
generation [SWS_Rte_01006] [SWS_Rte_01132]
[SWS_Rte_01274] [SWS_Rte_03786]
[SWS_Rte_05078] [SWS_Rte_06703]
[SWS_Rte_06704] [SWS_Rte_06705]
[SWS_Rte_06713] [SWS_Rte_07127]
[SWS_Rte_07131] [SWS_Rte_07924]
[SRS_Rte_00089] Independent access to interface [SWS_Rte_06008]
elements
[SRS_Rte_00091] Inter-ECU Marshalling [SWS_Rte_02557] [SWS_Rte_03863]
[SWS_Rte_03864] [SWS_Rte_03865]
[SWS_Rte_04504] [SWS_Rte_04505]
[SWS_Rte_04508] [SWS_Rte_04527]
[SWS_Rte_05081] [SWS_Rte_05173]
[SWS_Rte_07413] [SWS_Rte_08546]
[SWS_Rte_08547] [SWS_Rte_08548]
[SWS_Rte_08549] [SWS_Rte_08551]
[SWS_Rte_08552] [SWS_Rte_08553]
[SWS_Rte_08554] [SWS_Rte_08555]
[SWS_Rte_08556] [SWS_Rte_08557]
[SWS_Rte_08572] [SWS_Rte_08573]
[SWS_Rte_08576] [SWS_Rte_08577]
[SWS_Rte_08578] [SWS_Rte_08579]
[SWS_Rte_08580] [SWS_Rte_08581]
[SWS_Rte_08591] [SWS_Rte_08700]
[SWS_Rte_08703] [SWS_Rte_08705]
[SWS_Rte_08707] [SWS_Rte_08709]
[SWS_Rte_08711] [SWS_Rte_08712]
[SWS_Rte_08725] [SWS_Rte_08726]
[SWS_Rte_08727] [SWS_Rte_08728]
[SWS_Rte_08729] [SWS_Rte_08731]
[SWS_Rte_08793]
[SRS_Rte_00092] Implementation of VFB model [SWS_Rte_01358] [SWS_Rte_02740]
"waitpoints" [SWS_Rte_02741] [SWS_Rte_02743]
[SWS_Rte_02744] [SWS_Rte_02745]
[SWS_Rte_02746] [SWS_Rte_03010]
[SWS_Rte_03018] [SWS_Rte_07402]
[SWS_Rte_07846] [SWS_Rte_07847]
[SWS_Rte_08318] [SWS_Rte_08319]
[SWS_Rte_08320] [SWS_Rte_08321]
[SWS_Rte_08322]

43 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00094] Communication and Resource [SWS_Rte_01034] [SWS_Rte_01084]

Errors [SWS_Rte_01086] [SWS_Rte_01093]
[SWS_Rte_01094] [SWS_Rte_01095]
[SWS_Rte_01103] [SWS_Rte_01104]
[SWS_Rte_01105] [SWS_Rte_01106]
[SWS_Rte_01107] [SWS_Rte_01112]
[SWS_Rte_01113] [SWS_Rte_01114]
[SWS_Rte_01207] [SWS_Rte_01259]
[SWS_Rte_01260] [SWS_Rte_01261]
[SWS_Rte_01262] [SWS_Rte_01318]
[SWS_Rte_01330] [SWS_Rte_01331]
[SWS_Rte_01333] [SWS_Rte_01334]
[SWS_Rte_01339] [SWS_Rte_01344]
[SWS_Rte_02524] [SWS_Rte_02525]
[SWS_Rte_02571] [SWS_Rte_02572]
[SWS_Rte_02578] [SWS_Rte_02598]
[SWS_Rte_02602] [SWS_Rte_02674]
[SWS_Rte_02721] [SWS_Rte_02727]
[SWS_Rte_02728] [SWS_Rte_02729]
[SWS_Rte_03606] [SWS_Rte_03774]
[SWS_Rte_03785] [SWS_Rte_03853]
[SWS_Rte_04530] [SWS_Rte_06210]
[SWS_Rte_06828] [SWS_Rte_06830]
[SWS_Rte_07258] [SWS_Rte_07374]
[SWS_Rte_07375] [SWS_Rte_07376]
[SWS_Rte_07392] [SWS_Rte_07393]
[SWS_Rte_07636] [SWS_Rte_07637]
[SWS_Rte_07650] [SWS_Rte_07651]
[SWS_Rte_07652] [SWS_Rte_07659]
[SWS_Rte_07660] [SWS_Rte_07673]
[SWS_Rte_07820] [SWS_Rte_07821]
[SWS_Rte_07822] [SWS_Rte_07823]
[SWS_Rte_07848] [SWS_Rte_07849]
[SWS_Rte_08301] [SWS_Rte_08302]
[SWS_Rte_08546] [SWS_Rte_08547]
[SWS_Rte_08548] [SWS_Rte_08549]
[SWS_Rte_08552] [SWS_Rte_08553]
[SWS_Rte_08554] [SWS_Rte_08555]
[SWS_Rte_08556] [SWS_Rte_08557]
[SWS_Rte_08572] [SWS_Rte_08573]
[SWS_Rte_08576] [SWS_Rte_08577]
[SWS_Rte_08578] [SWS_Rte_08579]
[SWS_Rte_08580] [SWS_Rte_08581]
[SWS_Rte_08591] [SWS_Rte_08727]
[SWS_Rte_08728] [SWS_Rte_08729]
[SRS_Rte_00098] Explicit Sending [SWS_Rte_01071] [SWS_Rte_06011]
[SWS_Rte_06016]
[SRS_Rte_00099] Decoupling of interrupts [SWS_Rte_03530] [SWS_Rte_03531]
[SWS_Rte_03532] [SWS_Rte_03594]
[SWS_Rte_03600]
[SRS_Rte_00100] Compiler independent API [SWS_Rte_01314]

44 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00107] Support for [SWS_Rte_01135] [SWS_Rte_01137]

INFORMATION_TYPE attribute [SWS_Rte_01331] [SWS_Rte_02516]
[SWS_Rte_02518] [SWS_Rte_02520]
[SWS_Rte_02521] [SWS_Rte_02522]
[SWS_Rte_02523] [SWS_Rte_02524]
[SWS_Rte_02525] [SWS_Rte_02571]
[SWS_Rte_02572] [SWS_Rte_02718]
[SWS_Rte_02719] [SWS_Rte_02720]
[SWS_Rte_02721] [SWS_Rte_02758]
[SWS_Rte_04500] [SWS_Rte_06010]
[SWS_Rte_06771]
[SRS_Rte_00108] Support for INIT_VALUE [SWS_Rte_01268] [SWS_Rte_02517]
attribute [SWS_Rte_04501] [SWS_Rte_04502]
[SWS_Rte_05078] [SWS_Rte_06009]
[SWS_Rte_07642] [SWS_Rte_07668]
[SWS_Rte_07680] [SWS_Rte_07681]
[SWS_Rte_08311]
[SRS_Rte_00109] Support for RECEIVE_MODE [SWS_Rte_02519] [SWS_Rte_03018]
attribute [SWS_Rte_06002] [SWS_Rte_06012]
[SRS_Rte_00110] Support for BUFFERING [SWS_Rte_01331] [SWS_Rte_02515]
attribute [SWS_Rte_02522] [SWS_Rte_02523]
[SWS_Rte_02524] [SWS_Rte_02525]
[SWS_Rte_02526] [SWS_Rte_02527]
[SWS_Rte_02529] [SWS_Rte_02530]
[SWS_Rte_02571] [SWS_Rte_02572]
[SWS_Rte_02719] [SWS_Rte_02720]
[SWS_Rte_02721] [SWS_Rte_02723]
[SWS_Rte_07008]
[SRS_Rte_00111] Support for CLIENT_MODE [SWS_Rte_01293] [SWS_Rte_01294]
attribute [SWS_Rte_06639]
[SRS_Rte_00115] API for data consistency [SWS_Rte_01120] [SWS_Rte_01122]
mechanism [SWS_Rte_01307] [SWS_Rte_01308]
[SRS_Rte_00116] RTE Initialization and finalization [SWS_Rte_02535] [SWS_Rte_02536]
[SWS_Rte_02538] [SWS_Rte_02544]
[SWS_Rte_02569] [SWS_Rte_02570]
[SWS_Rte_02584] [SWS_Rte_02585]
[SWS_Rte_03852] [SWS_Rte_06766]
[SWS_Rte_06767] [SWS_Rte_07046]
[SWS_Rte_07270] [SWS_Rte_07586]
[SRS_Rte_00121] Support for FILTER attribute [SWS_Rte_05500] [SWS_Rte_05501]
[SWS_Rte_05503] [SWS_Rte_08077]
[SWS_Rte_08078] [SWS_Rte_08079]
[SRS_Rte_00122] Support for Transmission [SWS_Rte_01080] [SWS_Rte_01083]
Acknowledgement [SWS_Rte_01084] [SWS_Rte_01086]
[SWS_Rte_01137] [SWS_Rte_01283]
[SWS_Rte_01284] [SWS_Rte_01285]
[SWS_Rte_01286] [SWS_Rte_01287]
[SWS_Rte_01344] [SWS_Rte_02612]
[SWS_Rte_02676] [SWS_Rte_02677]
[SWS_Rte_02678] [SWS_Rte_02725]
[SWS_Rte_02727] [SWS_Rte_02729]
[SWS_Rte_02758] [SWS_Rte_03002]
[SWS_Rte_03005] [SWS_Rte_03604]
[SWS_Rte_03754] [SWS_Rte_03756]

45 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_03757] [SWS_Rte_03758]
[SWS_Rte_03774] [SWS_Rte_03775]
[SWS_Rte_03776] [SWS_Rte_05065]
[SWS_Rte_05084] [SWS_Rte_05085]
[SWS_Rte_05504] [SWS_Rte_06771]
[SWS_Rte_07055] [SWS_Rte_07286]
[SWS_Rte_07367] [SWS_Rte_07374]
[SWS_Rte_07375] [SWS_Rte_07376]
[SWS_Rte_07379] [SWS_Rte_07557]
[SWS_Rte_07558] [SWS_Rte_07560]
[SWS_Rte_07561] [SWS_Rte_07634]
[SWS_Rte_07635] [SWS_Rte_07636]
[SWS_Rte_07637] [SWS_Rte_07646]
[SWS_Rte_07647] [SWS_Rte_07648]
[SWS_Rte_07650] [SWS_Rte_07651]
[SWS_Rte_07652] [SWS_Rte_07659]
[SWS_Rte_07660] [SWS_Rte_07846]
[SWS_Rte_07847] [SWS_Rte_07848]
[SWS_Rte_07849] [SWS_Rte_07850]
[SWS_Rte_07851] [SWS_Rte_07927]
[SWS_Rte_08017] [SWS_Rte_08018]
[SWS_Rte_08020] [SWS_Rte_08021]
[SWS_Rte_08022] [SWS_Rte_08023]
[SWS_Rte_08043] [SWS_Rte_08044]
[SWS_Rte_08045] [SWS_Rte_08074]
[SWS_Rte_08075] [SWS_Rte_08076]
[SWS_Rte_08583]
[SRS_Rte_00123] The RTE shall forward [SWS_Rte_01103] [SWS_Rte_02576]
application level errors from [SWS_Rte_02577] [SWS_Rte_02578]
server to client [SWS_Rte_02593] [SWS_Rte_07925]
[SWS_Rte_07926] [SWS_Rte_08705]
[SWS_Rte_08709]
[SRS_Rte_00124] API for application level errors [SWS_Rte_01103] [SWS_Rte_01130]
during Client Server [SWS_Rte_02573] [SWS_Rte_02575]
communication
[SRS_Rte_00126] C language support [SWS_Rte_01005] [SWS_Rte_01162]
[SWS_Rte_01167] [SWS_Rte_01169]
[SWS_Rte_03709] [SWS_Rte_03710]
[SWS_Rte_03724] [SWS_Rte_07124]
[SWS_Rte_07125] [SWS_Rte_07126]
[SWS_Rte_07297] [SWS_Rte_07298]
[SWS_Rte_07299] [SWS_Rte_07507]
[SWS_Rte_07508] [SWS_Rte_07509]
[SWS_Rte_07678] [SWS_Rte_07923]
[SRS_Rte_00128] Implicit Reception [SWS_Rte_01268] [SWS_Rte_03598]
[SWS_Rte_03599] [SWS_Rte_03741]
[SWS_Rte_03954] [SWS_Rte_03955]
[SWS_Rte_03956] [SWS_Rte_06000]
[SWS_Rte_06001] [SWS_Rte_06004]
[SWS_Rte_06011] [SWS_Rte_07007]
[SWS_Rte_07020] [SWS_Rte_07062]
[SWS_Rte_07063] [SWS_Rte_07064]
[SWS_Rte_07652] [SWS_Rte_08408]

46 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00129] Implicit Sending [SWS_Rte_03570] [SWS_Rte_03571]

[SWS_Rte_03572] [SWS_Rte_03573]
[SWS_Rte_03574] [SWS_Rte_03598]
[SWS_Rte_03744] [SWS_Rte_03746]
[SWS_Rte_03953] [SWS_Rte_03954]
[SWS_Rte_03955] [SWS_Rte_03957]
[SWS_Rte_05509] [SWS_Rte_06011]
[SWS_Rte_07007] [SWS_Rte_07021]
[SWS_Rte_07041] [SWS_Rte_07062]
[SWS_Rte_07065] [SWS_Rte_07066]
[SWS_Rte_07067] [SWS_Rte_07068]
[SWS_Rte_07367] [SWS_Rte_07374]
[SWS_Rte_07375] [SWS_Rte_07376]
[SWS_Rte_07646] [SWS_Rte_07647]
[SWS_Rte_07648] [SWS_Rte_07650]
[SWS_Rte_07651] [SWS_Rte_07660]
[SWS_Rte_08408] [SWS_Rte_08418]
[SRS_Rte_00131] "n:1" Sender-receiver [SWS_Rte_01071] [SWS_Rte_01072]
communication [SWS_Rte_01091] [SWS_Rte_01092]
[SWS_Rte_01135] [SWS_Rte_02631]
[SWS_Rte_02633] [SWS_Rte_02635]
[SWS_Rte_02670] [SWS_Rte_03760]
[SWS_Rte_03761] [SWS_Rte_03762]
[SWS_Rte_07394] [SWS_Rte_07824]
[SWS_Rte_07825] [SWS_Rte_07826]
[SWS_Rte_07827] [SWS_Rte_08788]
[SRS_Rte_00133] Concurrent invocation of [SWS_Rte_02697] [SWS_Rte_03523]
Runnable Entities [SWS_Rte_07007]
[SRS_Rte_00134] Runnable Entity categories [SWS_Rte_03574] [SWS_Rte_03954]
supported by the RTE [SWS_Rte_06003] [SWS_Rte_06007]
[SWS_Rte_07062]
[SRS_Rte_00137] API for mismatched ports [SWS_Rte_01368] [SWS_Rte_01369]
[SWS_Rte_01370]
[SRS_Rte_00138] C++ language support [SWS_Rte_01005] [SWS_Rte_01011]
[SWS_Rte_03709] [SWS_Rte_03710]
[SWS_Rte_07124] [SWS_Rte_07125]
[SWS_Rte_07126] [SWS_Rte_07297]
[SWS_Rte_07298] [SWS_Rte_07299]
[SWS_Rte_07507] [SWS_Rte_07508]
[SWS_Rte_07509]
[SRS_Rte_00139] Support for unconnected ports [SWS_Rte_01329] [SWS_Rte_01330]
[SWS_Rte_01331] [SWS_Rte_01332]
[SWS_Rte_01333] [SWS_Rte_01334]
[SWS_Rte_01344] [SWS_Rte_01346]
[SWS_Rte_01347] [SWS_Rte_01375]
[SWS_Rte_02638] [SWS_Rte_02639]
[SWS_Rte_02640] [SWS_Rte_02641]
[SWS_Rte_02642] [SWS_Rte_02749]
[SWS_Rte_02750] [SWS_Rte_03019]
[SWS_Rte_03783] [SWS_Rte_03784]
[SWS_Rte_03785] [SWS_Rte_03978]
[SWS_Rte_03980] [SWS_Rte_04530]

47 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_05099] [SWS_Rte_05101]
[SWS_Rte_05102] [SWS_Rte_05170]
[SWS_Rte_06030] [SWS_Rte_06210]
[SWS_Rte_07378] [SWS_Rte_07655]
[SWS_Rte_07659] [SWS_Rte_07660]
[SWS_Rte_07663] [SWS_Rte_07667]
[SWS_Rte_07668] [SWS_Rte_07669]
[SWS_Rte_07847]
[SRS_Rte_00140] Binary-code AUTOSAR software [SWS_Rte_01000] [SWS_Rte_01195]
components [SWS_Rte_01315] [SWS_Rte_07120]
[SRS_Rte_00141] Explicit Reception [SWS_Rte_01072] [SWS_Rte_01091]
[SWS_Rte_01092] [SWS_Rte_06011]
[SWS_Rte_07394] [SWS_Rte_07673]
[SRS_Rte_00142] Support for InterRunnable [SWS_Rte_01303] [SWS_Rte_01304]
Variables [SWS_Rte_01305] [SWS_Rte_01306]
[SWS_Rte_01350] [SWS_Rte_01351]
[SWS_Rte_02636] [SWS_Rte_03516]
[SWS_Rte_03517] [SWS_Rte_03519]
[SWS_Rte_03550] [SWS_Rte_03553]
[SWS_Rte_03560] [SWS_Rte_03562]
[SWS_Rte_03565] [SWS_Rte_03567]
[SWS_Rte_03580] [SWS_Rte_03582]
[SWS_Rte_03583] [SWS_Rte_03584]
[SWS_Rte_03589] [SWS_Rte_06207]
[SWS_Rte_06208] [SWS_Rte_07007]
[SWS_Rte_07022] [SWS_Rte_07187]
[SRS_Rte_00143] Mode Switches [SWS_Rte_02500] [SWS_Rte_02503]
[SWS_Rte_02504] [SWS_Rte_02512]
[SWS_Rte_02544] [SWS_Rte_02546]
[SWS_Rte_02562] [SWS_Rte_02563]
[SWS_Rte_02564] [SWS_Rte_02587]
[SWS_Rte_02630] [SWS_Rte_02631]
[SWS_Rte_02634] [SWS_Rte_02661]
[SWS_Rte_02662] [SWS_Rte_02663]
[SWS_Rte_02664] [SWS_Rte_02665]
[SWS_Rte_02667] [SWS_Rte_02668]
[SWS_Rte_02669] [SWS_Rte_02675]
[SWS_Rte_02679] [SWS_Rte_02706]
[SWS_Rte_02707] [SWS_Rte_02708]
[SWS_Rte_02730] [SWS_Rte_06766]
[SWS_Rte_06767] [SWS_Rte_06768]
[SWS_Rte_06769] [SWS_Rte_06770]
[SWS_Rte_06772] [SWS_Rte_06773]
[SWS_Rte_06774] [SWS_Rte_06775]
[SWS_Rte_06776] [SWS_Rte_06777]
[SWS_Rte_06778] [SWS_Rte_06779]
[SWS_Rte_06780] [SWS_Rte_06785]
[SWS_Rte_06786] [SWS_Rte_06787]
[SWS_Rte_06788] [SWS_Rte_06789]
[SWS_Rte_06790] [SWS_Rte_06791]

48 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_06792] [SWS_Rte_06793]
[SWS_Rte_06794] [SWS_Rte_06795]
[SWS_Rte_06796] [SWS_Rte_06797]
[SWS_Rte_07056] [SWS_Rte_07057]
[SWS_Rte_07058] [SWS_Rte_07059]
[SWS_Rte_07060] [SWS_Rte_07150]
[SWS_Rte_07151] [SWS_Rte_07152]
[SWS_Rte_07153] [SWS_Rte_07154]
[SWS_Rte_07155] [SWS_Rte_07157]
[SWS_Rte_07173] [SWS_Rte_07259]
[SWS_Rte_07533] [SWS_Rte_07535]
[SWS_Rte_07559] [SWS_Rte_07564]
[SRS_Rte_00144] RTE shall support the [SWS_Rte_02508] [SWS_Rte_02544]
notification of mode switches via [SWS_Rte_02546] [SWS_Rte_02549]
AUTOSAR interfaces [SWS_Rte_02566] [SWS_Rte_02567]
[SWS_Rte_02568] [SWS_Rte_02624]
[SWS_Rte_02628] [SWS_Rte_02659]
[SWS_Rte_02660] [SWS_Rte_02732]
[SWS_Rte_02738] [SWS_Rte_03858]
[SWS_Rte_03859] [SWS_Rte_06742]
[SWS_Rte_06743] [SWS_Rte_06744]
[SWS_Rte_06745] [SWS_Rte_06746]
[SWS_Rte_06747] [SWS_Rte_06766]
[SWS_Rte_06767] [SWS_Rte_06772]
[SWS_Rte_06773] [SWS_Rte_06774]
[SWS_Rte_06775] [SWS_Rte_06776]
[SWS_Rte_06777] [SWS_Rte_06778]
[SWS_Rte_06779] [SWS_Rte_06780]
[SWS_Rte_06781] [SWS_Rte_06782]
[SWS_Rte_06783] [SWS_Rte_06784]
[SWS_Rte_06785] [SWS_Rte_06786]
[SWS_Rte_06787] [SWS_Rte_06788]
[SWS_Rte_06789] [SWS_Rte_06790]
[SWS_Rte_06791] [SWS_Rte_06792]
[SWS_Rte_06793] [SWS_Rte_06794]
[SWS_Rte_06795] [SWS_Rte_06796]
[SWS_Rte_06797] [SWS_Rte_07155]
[SWS_Rte_07262] [SWS_Rte_07540]
[SWS_Rte_07640] [SWS_Rte_07666]
[SWS_Rte_08500] [SWS_Rte_08504]
[SWS_Rte_08505] [SWS_Rte_08506]
[SWS_Rte_08509] [SWS_Rte_08510]
[SRS_Rte_00145] Compatibility mode [SWS_Rte_01151] [SWS_Rte_01216]
[SWS_Rte_01234] [SWS_Rte_01257]
[SWS_Rte_01277] [SWS_Rte_01279]
[SWS_Rte_01326] [SWS_Rte_03794]
[SRS_Rte_00146] Vendor mode [SWS_Rte_01234]

49 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00147] Support for communication [SWS_Rte_02589] [SWS_Rte_02590]

infrastructure time-out [SWS_Rte_02599] [SWS_Rte_02600]
notification [SWS_Rte_02604] [SWS_Rte_02607]
[SWS_Rte_02609] [SWS_Rte_02610]
[SWS_Rte_02611] [SWS_Rte_02629]
[SWS_Rte_02666] [SWS_Rte_02703]
[SWS_Rte_02710] [SWS_Rte_03759]
[SWS_Rte_05021] [SWS_Rte_06820]
[SWS_Rte_06821] [SWS_Rte_06822]
[SWS_Rte_06823] [SWS_Rte_06824]
[SWS_Rte_06825] [SWS_Rte_06829]
[SWS_Rte_08004] [SWS_Rte_08061]
[SWS_Rte_08062] [SWS_Rte_08103]
[SWS_Rte_08104] [SWS_Rte_08501]
[SRS_Rte_00148] Support "Specification of [SWS_Rte_03788] [SWS_Rte_03868]
Memory Mapping" [SWS_Rte_05088] [SWS_Rte_05089]
[SWS_Rte_06741] [SWS_Rte_07047]
[SWS_Rte_07048] [SWS_Rte_07049]
[SWS_Rte_07050] [SWS_Rte_07051]
[SWS_Rte_07052] [SWS_Rte_07053]
[SWS_Rte_07194] [SWS_Rte_07195]
[SWS_Rte_07589] [SWS_Rte_07590]
[SWS_Rte_07591] [SWS_Rte_07592]
[SWS_Rte_07593] [SWS_Rte_07594]
[SWS_Rte_07595] [SWS_Rte_07596]
[SWS_Rte_07830] [SWS_Rte_07831]
[SWS_Rte_07832] [SWS_Rte_08787]
[SRS_Rte_00149] Support "Specification of [SWS_Rte_01164] [SWS_Rte_03787]
Compiler Abstraction" [SWS_Rte_07194] [SWS_Rte_07195]
[SWS_Rte_07593] [SWS_Rte_07594]
[SWS_Rte_07595] [SWS_Rte_07596]
[SWS_Rte_07641]
[SRS_Rte_00150] Support "Specification of [SWS_Rte_01164] [SWS_Rte_07641]
Platform Types"
[SRS_Rte_00152] Support for port-defined [SWS_Rte_01166] [SWS_Rte_01360]
argument values
[SRS_Rte_00153] Support for Measurement [SWS_Rte_03900] [SWS_Rte_03901]
[SWS_Rte_03902] [SWS_Rte_03903]
[SWS_Rte_03904] [SWS_Rte_03950]
[SWS_Rte_03951] [SWS_Rte_03972]
[SWS_Rte_03973] [SWS_Rte_03974]
[SWS_Rte_03975] [SWS_Rte_03976]
[SWS_Rte_03977] [SWS_Rte_03978]
[SWS_Rte_03979] [SWS_Rte_03980]
[SWS_Rte_03981] [SWS_Rte_03982]
[SWS_Rte_05087] [SWS_Rte_05101]
[SWS_Rte_05102] [SWS_Rte_05120]
[SWS_Rte_05121] [SWS_Rte_05122]

50 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_05123] [SWS_Rte_05124]
[SWS_Rte_05125] [SWS_Rte_05136]
[SWS_Rte_05168] [SWS_Rte_05169]
[SWS_Rte_05170] [SWS_Rte_05172]
[SWS_Rte_05174] [SWS_Rte_05175]
[SWS_Rte_05176] [SWS_Rte_06206]
[SWS_Rte_06700] [SWS_Rte_06701]
[SWS_Rte_06702] [SWS_Rte_06726]
[SWS_Rte_07160] [SWS_Rte_07174]
[SWS_Rte_07197] [SWS_Rte_07198]
[SWS_Rte_07344] [SWS_Rte_07349]
[SRS_Rte_00154] Support for Calibration [SWS_Rte_03835] [SWS_Rte_03905]
[SWS_Rte_03906] [SWS_Rte_03907]
[SWS_Rte_03908] [SWS_Rte_03909]
[SWS_Rte_03910] [SWS_Rte_03911]
[SWS_Rte_03912] [SWS_Rte_03913]
[SWS_Rte_03914] [SWS_Rte_03915]
[SWS_Rte_03916] [SWS_Rte_03922]
[SWS_Rte_03932] [SWS_Rte_03933]
[SWS_Rte_03934] [SWS_Rte_03935]
[SWS_Rte_03936] [SWS_Rte_03942]
[SWS_Rte_03943] [SWS_Rte_03947]
[SWS_Rte_03948] [SWS_Rte_03949]
[SWS_Rte_03958] [SWS_Rte_03959]
[SWS_Rte_03960] [SWS_Rte_03961]
[SWS_Rte_03962] [SWS_Rte_03963]
[SWS_Rte_03964] [SWS_Rte_03965]
[SWS_Rte_03968] [SWS_Rte_03970]
[SWS_Rte_03971] [SWS_Rte_05112]
[SWS_Rte_05145] [SWS_Rte_05194]
[SWS_Rte_06815] [SWS_Rte_06816]
[SWS_Rte_07029] [SWS_Rte_07030]
[SWS_Rte_07033] [SWS_Rte_07034]
[SWS_Rte_07035] [SWS_Rte_07096]
[SWS_Rte_07185] [SWS_Rte_07186]
[SWS_Rte_07693]
[SRS_Rte_00155] API to access calibration [SWS_Rte_01252] [SWS_Rte_01300]
parameters [SWS_Rte_03835] [SWS_Rte_03927]
[SWS_Rte_03928] [SWS_Rte_03929]
[SWS_Rte_03930] [SWS_Rte_03949]
[SWS_Rte_03952] [SWS_Rte_07093]
[SWS_Rte_07094] [SWS_Rte_07095]
[SRS_Rte_00156] Support for different calibration [SWS_Rte_03905] [SWS_Rte_03906]
data emulation methods [SWS_Rte_03908] [SWS_Rte_03909]
[SWS_Rte_03910] [SWS_Rte_03911]
[SWS_Rte_03913] [SWS_Rte_03914]
[SWS_Rte_03915] [SWS_Rte_03916]
[SWS_Rte_03922] [SWS_Rte_03932]
[SWS_Rte_03933] [SWS_Rte_03934]
[SWS_Rte_03935] [SWS_Rte_03936]
[SWS_Rte_03942] [SWS_Rte_03943]
[SWS_Rte_03947] [SWS_Rte_03948]
[SWS_Rte_03960] [SWS_Rte_03961]
[SWS_Rte_03962] [SWS_Rte_03963]

51 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_03964] [SWS_Rte_03965]
[SWS_Rte_03968] [SWS_Rte_03970]
[SWS_Rte_03971] [SWS_Rte_05145]
[SWS_Rte_06816]
[SRS_Rte_00157] Support for calibration [SWS_Rte_03936]
parameters in NVRAM
[SRS_Rte_00158] Support separation of calibration [SWS_Rte_03907] [SWS_Rte_03908]
parameters [SWS_Rte_03911] [SWS_Rte_03912]
[SWS_Rte_03959] [SWS_Rte_05145]
[SWS_Rte_05194] [SWS_Rte_07096]
[SRS_Rte_00159] Sharing of calibration [SWS_Rte_02749] [SWS_Rte_02750]
parameters [SWS_Rte_03958] [SWS_Rte_05112]
[SWS_Rte_07186]
[SRS_Rte_00160] Debounced start of Runnable [SWS_Rte_02697]
Entities
[SRS_Rte_00161] Activation offset of Runnable [SWS_Rte_07000]
Entities
[SRS_Rte_00162] "1:n" External Trigger [SWS_Rte_06210] [SWS_Rte_07200]
communication [SWS_Rte_07201] [SWS_Rte_07207]
[SWS_Rte_07212] [SWS_Rte_07213]
[SWS_Rte_07214] [SWS_Rte_07215]
[SWS_Rte_07216] [SWS_Rte_07218]
[SWS_Rte_07229] [SWS_Rte_07543]
[SRS_Rte_00163] Support for InterRunnable [SWS_Rte_07203] [SWS_Rte_07204]
Triggering [SWS_Rte_07208] [SWS_Rte_07220]
[SWS_Rte_07221] [SWS_Rte_07223]
[SWS_Rte_07224] [SWS_Rte_07226]
[SWS_Rte_07227] [SWS_Rte_07228]
[SWS_Rte_07229] [SWS_Rte_07555]
[SRS_Rte_00164] Ensure a unique naming of [SWS_Rte_06706] [SWS_Rte_06707]
generated types visible in the [SWS_Rte_06708] [SWS_Rte_06812]
global namespace [SWS_Rte_06813] [SWS_Rte_07110]
[SWS_Rte_07111] [SWS_Rte_07114]
[SWS_Rte_07115] [SWS_Rte_07116]
[SWS_Rte_07117] [SWS_Rte_07118]
[SWS_Rte_07119] [SWS_Rte_07144]
[SWS_Rte_07145] [SWS_Rte_07146]
[SRS_Rte_00165] Suppress identical "C" type [SWS_Rte_07105] [SWS_Rte_07107]
re-definitions [SWS_Rte_07112] [SWS_Rte_07113]
[SWS_Rte_07134] [SWS_Rte_07143]
[SWS_Rte_07167] [SWS_Rte_07169]
[SRS_Rte_00166] Use the AUTOSAR Standard [SWS_Rte_07036] [SWS_Rte_07037]
Types in the global namespace if [SWS_Rte_07104] [SWS_Rte_07109]
the AUTOSAR data type is [SWS_Rte_07148] [SWS_Rte_07149]
mapped to an AUTOSAR [SWS_Rte_07162] [SWS_Rte_07163]
Standard Type [SWS_Rte_07166]

52 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00167] Encapsulate a Software [SWS_Rte_01004] [SWS_Rte_02575]

Component local name space [SWS_Rte_03809] [SWS_Rte_03810]
[SWS_Rte_03854] [SWS_Rte_05051]
[SWS_Rte_05052] [SWS_Rte_06513]
[SWS_Rte_06515] [SWS_Rte_06518]
[SWS_Rte_06519] [SWS_Rte_06520]
[SWS_Rte_06530] [SWS_Rte_06541]
[SWS_Rte_06542] [SWS_Rte_06551]
[SWS_Rte_06552] [SWS_Rte_06716]
[SWS_Rte_06717] [SWS_Rte_06718]
[SWS_Rte_07122] [SWS_Rte_07123]
[SWS_Rte_07132] [SWS_Rte_07140]
[SWS_Rte_07410] [SWS_Rte_07411]
[SWS_Rte_07412] [SWS_Rte_07414]
[SWS_Rte_08401] [SWS_Rte_08402]
[SWS_Rte_08416]
[SRS_Rte_00168] Typing of RTE API. [SWS_Rte_07104]
[SRS_Rte_00169] Map code and memory allocated [SWS_Rte_03868] [SWS_Rte_05088]
by the RTE to memory sections [SWS_Rte_05089] [SWS_Rte_06741]
[SWS_Rte_07047] [SWS_Rte_07048]
[SWS_Rte_07049] [SWS_Rte_07050]
[SWS_Rte_07051] [SWS_Rte_07052]
[SWS_Rte_07053] [SWS_Rte_07589]
[SWS_Rte_07590] [SWS_Rte_07591]
[SWS_Rte_07592] [SWS_Rte_08787]
[SRS_Rte_00170] Provide used memory sections [SWS_Rte_05086] [SWS_Rte_05089]
description [SWS_Rte_06725]
[SRS_Rte_00171] Support for fixed and constant [SWS_Rte_03930]
data
[SRS_Rte_00176] Sharing of NVRAM data [SWS_Rte_07301]
[SRS_Rte_00177] Support of NvBlockComponent [SWS_Rte_04535] [SWS_Rte_06211]
Type [SWS_Rte_06212] [SWS_Rte_07303]
[SWS_Rte_07312] [SWS_Rte_07317]
[SWS_Rte_07343] [SWS_Rte_07353]
[SWS_Rte_07355] [SWS_Rte_07398]
[SWS_Rte_07399] [SWS_Rte_07632]
[SWS_Rte_07633] [SWS_Rte_08063]
[SWS_Rte_08064] [SWS_Rte_08080]
[SWS_Rte_08081] [SWS_Rte_08082]
[SWS_Rte_08083] [SWS_Rte_08084]
[SWS_Rte_08085] [SWS_Rte_08086]
[SWS_Rte_08087] [SWS_Rte_08088]
[SWS_Rte_08089] [SWS_Rte_08090]
[SWS_Rte_08111]
[SRS_Rte_00178] Data consistency of NvBlock [SWS_Rte_07310] [SWS_Rte_07311]
ComponentType [SWS_Rte_07315] [SWS_Rte_07316]
[SWS_Rte_07319] [SWS_Rte_07350]
[SWS_Rte_07601] [SWS_Rte_07602]
[SWS_Rte_07613] [SWS_Rte_07614]

53 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00179] Support of Update Flag for Data [SWS_Rte_01413] [SWS_Rte_04528]

Reception [SWS_Rte_07385] [SWS_Rte_07386]
[SWS_Rte_07387] [SWS_Rte_07390]
[SWS_Rte_07391] [SWS_Rte_07392]
[SWS_Rte_07393] [SWS_Rte_07654]
[SWS_Rte_07689]
[SRS_Rte_00180] DataSemantics range check [SWS_Rte_01371] [SWS_Rte_01372]
during runtime [SWS_Rte_01374] [SWS_Rte_03839]
[SWS_Rte_03840] [SWS_Rte_03841]
[SWS_Rte_03842] [SWS_Rte_03843]
[SWS_Rte_03845] [SWS_Rte_03846]
[SWS_Rte_03847] [SWS_Rte_03848]
[SWS_Rte_03849] [SWS_Rte_03861]
[SWS_Rte_06829] [SWS_Rte_07038]
[SWS_Rte_08016] [SWS_Rte_08024]
[SWS_Rte_08025] [SWS_Rte_08026]
[SWS_Rte_08027] [SWS_Rte_08028]
[SWS_Rte_08029] [SWS_Rte_08030]
[SWS_Rte_08031] [SWS_Rte_08032]
[SWS_Rte_08033] [SWS_Rte_08034]
[SWS_Rte_08035] [SWS_Rte_08036]
[SWS_Rte_08037] [SWS_Rte_08038]
[SWS_Rte_08039] [SWS_Rte_08040]
[SWS_Rte_08041] [SWS_Rte_08042]
[SWS_Rte_08065]
[SRS_Rte_00181] Conversion between internal [SWS_Rte_03827] [SWS_Rte_03828]
and network data types [SWS_Rte_04536] [SWS_Rte_04537]
[SWS_Rte_04538] [SWS_Rte_04539]
[SWS_Rte_06737] [SWS_Rte_06738]
[SWS_Rte_07828] [SWS_Rte_07829]
[SWS_Rte_07844]
[SRS_Rte_00182] Self Scaling Signals at Port [SWS_Rte_01374] [SWS_Rte_03815]
Interfaces [SWS_Rte_03816] [SWS_Rte_03817]
[SWS_Rte_03818] [SWS_Rte_03819]
[SWS_Rte_03820] [SWS_Rte_03821]
[SWS_Rte_03822] [SWS_Rte_03823]
[SWS_Rte_03829] [SWS_Rte_03830]
[SWS_Rte_03831] [SWS_Rte_03832]
[SWS_Rte_03833] [SWS_Rte_03855]
[SWS_Rte_03856] [SWS_Rte_03857]
[SWS_Rte_03860] [SWS_Rte_07038]
[SWS_Rte_07091] [SWS_Rte_07092]
[SWS_Rte_07099] [SWS_Rte_07925]
[SWS_Rte_07926] [SWS_Rte_07928]
[SWS_Rte_08801]
[SRS_Rte_00183] RTE Read API returning the [SWS_Rte_07394] [SWS_Rte_07395]
dataElement value [SWS_Rte_07396]

54 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00184] RTE Status "Never Received" [SWS_Rte_04529] [SWS_Rte_06829]

[SWS_Rte_07381] [SWS_Rte_07382]
[SWS_Rte_07383] [SWS_Rte_07384]
[SWS_Rte_07643] [SWS_Rte_07644]
[SWS_Rte_07645] [SWS_Rte_08005]
[SWS_Rte_08008] [SWS_Rte_08009]
[SWS_Rte_08046] [SWS_Rte_08047]
[SWS_Rte_08048] [SWS_Rte_08096]
[SWS_Rte_08097] [SWS_Rte_08098]
[SRS_Rte_00185] RTE API with Rte_IFeedback [SWS_Rte_02589] [SWS_Rte_02590]
[SWS_Rte_02608] [SWS_Rte_02666]
[SWS_Rte_03836] [SWS_Rte_06820]
[SWS_Rte_06821] [SWS_Rte_06822]
[SWS_Rte_06823] [SWS_Rte_06824]
[SWS_Rte_06826] [SWS_Rte_06827]
[SWS_Rte_07367] [SWS_Rte_07374]
[SWS_Rte_07375] [SWS_Rte_07376]
[SWS_Rte_07378] [SWS_Rte_07379]
[SWS_Rte_07646] [SWS_Rte_07647]
[SWS_Rte_07648] [SWS_Rte_07650]
[SWS_Rte_07651] [SWS_Rte_07652]
[SWS_Rte_07660]
[SRS_Rte_00189] A2L Generation Support [SWS_Rte_03998] [SWS_Rte_05087]
[SWS_Rte_05118] [SWS_Rte_05119]
[SWS_Rte_05120] [SWS_Rte_05121]
[SWS_Rte_05122] [SWS_Rte_05123]
[SWS_Rte_05124] [SWS_Rte_05125]
[SWS_Rte_05126] [SWS_Rte_05127]
[SWS_Rte_05128] [SWS_Rte_05129]
[SWS_Rte_05130] [SWS_Rte_05131]
[SWS_Rte_05132] [SWS_Rte_05133]
[SWS_Rte_05135] [SWS_Rte_05136]
[SWS_Rte_05137] [SWS_Rte_05138]
[SWS_Rte_05139] [SWS_Rte_05140]
[SWS_Rte_05141] [SWS_Rte_05142]
[SWS_Rte_05143] [SWS_Rte_05144]
[SWS_Rte_05152] [SWS_Rte_05153]
[SWS_Rte_05154] [SWS_Rte_05155]
[SWS_Rte_05156] [SWS_Rte_05157]
[SWS_Rte_05158] [SWS_Rte_05159]
[SWS_Rte_05160] [SWS_Rte_05161]
[SWS_Rte_05162] [SWS_Rte_06702]
[SWS_Rte_06726] [SWS_Rte_07097]
[SWS_Rte_08313] [SWS_Rte_08314]
[SWS_Rte_08315] [SWS_Rte_08316]
[SWS_Rte_08317]

55 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00191] Support for Variant Handling [SWS_Rte_05168] [SWS_Rte_05169]

[SWS_Rte_05174] [SWS_Rte_05175]
[SWS_Rte_05176] [SWS_Rte_06500]
[SWS_Rte_06501] [SWS_Rte_06507]
[SWS_Rte_06509] [SWS_Rte_06510]
[SWS_Rte_06512] [SWS_Rte_06543]
[SWS_Rte_06546] [SWS_Rte_06547]
[SWS_Rte_06549] [SWS_Rte_06550]
[SWS_Rte_06553] [SWS_Rte_06611]
[SWS_Rte_06612] [SWS_Rte_06613]
[SWS_Rte_06814] [SWS_Rte_06815]
[SWS_Rte_06816] [SWS_Rte_08066]
[SWS_Rte_08067] [SWS_Rte_08068]
[SWS_Rte_08069] [SWS_Rte_08070]
[SRS_Rte_00192] Support multiple trace clients [SWS_Rte_05086] [SWS_Rte_05091]
[SWS_Rte_05092] [SWS_Rte_05093]
[SWS_Rte_05106] [SWS_Rte_06725]
[SRS_Rte_00193] Support for Runnable Entity [SWS_Rte_07800] [SWS_Rte_07802]
execution chaining
[SRS_Rte_00195] No activation of Runnable [SWS_Rte_07604] [SWS_Rte_07606]
Entities in terminated or
restarting partitions
[SRS_Rte_00196] Inter-partition communication [SWS_Rte_02761] [SWS_Rte_05147]
consistency [SWS_Rte_07610]
[SRS_Rte_00200] Support of unconnected R-Ports [SWS_Rte_01330] [SWS_Rte_01331]
[SWS_Rte_01333] [SWS_Rte_01334]
[SWS_Rte_03785] [SWS_Rte_04530]
[SWS_Rte_06210] [SWS_Rte_07655]
[SWS_Rte_07663]
[SRS_Rte_00201] Contract Phase with Variant [SWS_Rte_06500] [SWS_Rte_06502]
Handling support [SWS_Rte_06505] [SWS_Rte_06514]
[SWS_Rte_06515] [SWS_Rte_06516]
[SWS_Rte_06518] [SWS_Rte_06519]
[SWS_Rte_06520] [SWS_Rte_06521]
[SWS_Rte_06522] [SWS_Rte_06523]
[SWS_Rte_06524] [SWS_Rte_06525]
[SWS_Rte_06526] [SWS_Rte_06527]
[SWS_Rte_06528] [SWS_Rte_06529]
[SWS_Rte_06530] [SWS_Rte_06531]
[SWS_Rte_06539] [SWS_Rte_06540]
[SWS_Rte_06541] [SWS_Rte_06542]
[SWS_Rte_06543] [SWS_Rte_06546]
[SWS_Rte_06551] [SWS_Rte_06552]
[SWS_Rte_06620] [SWS_Rte_06638]
[SWS_Rte_08095]
[SRS_Rte_00202] Support for array size variants [SWS_Rte_06500] [SWS_Rte_06505]
[SWS_Rte_06543] [SWS_Rte_06546]
[SRS_Rte_00203] API to read system constant [SWS_Rte_03854] [SWS_Rte_06513]
[SWS_Rte_06514] [SWS_Rte_06517]
[SRS_Rte_00204] Support the selection / [SWS_Rte_06601]
de-selection of SWC prototypes
[SRS_Rte_00206] Support the selection of a signal [SWS_Rte_06601] [SWS_Rte_06602]
provider [SWS_Rte_06603] [SWS_Rte_06604]
[SWS_Rte_06605] [SWS_Rte_06606]

56 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00207] Support N to M communication [SWS_Rte_06601] [SWS_Rte_06602]

patterns while unresolved [SWS_Rte_06603] [SWS_Rte_06604]
variations are affecting these [SWS_Rte_06605] [SWS_Rte_06606]
communications
[SRS_Rte_00210] Support for inter OS application [SWS_Rte_02728] [SWS_Rte_02732]
communication [SWS_Rte_02752] [SWS_Rte_02753]
[SWS_Rte_02754] [SWS_Rte_02755]
[SWS_Rte_02756] [SWS_Rte_03853]
[SWS_Rte_07606] [SWS_Rte_08400]
[SWS_Rte_08504] [SWS_Rte_08506]
[SRS_Rte_00211] Cyclic time based scheduling of [SWS_Rte_02697] [SWS_Rte_04542]
BSW Schedulable Entities [SWS_Rte_04543] [SWS_Rte_07282]
[SWS_Rte_07514] [SWS_Rte_07574]
[SWS_Rte_07584]
[SRS_Rte_00212] Activation Offset of BSW [SWS_Rte_07520]
Schedulable Entities
[SRS_Rte_00213] Mode Switches for BSW [SWS_Rte_02500] [SWS_Rte_02562]
Modules [SWS_Rte_02563] [SWS_Rte_02564]
[SWS_Rte_02587] [SWS_Rte_02630]
[SWS_Rte_02661] [SWS_Rte_02662]
[SWS_Rte_02663] [SWS_Rte_02664]
[SWS_Rte_02665] [SWS_Rte_02667]
[SWS_Rte_02668] [SWS_Rte_02669]
[SWS_Rte_02707] [SWS_Rte_02708]
[SWS_Rte_04542] [SWS_Rte_04543]
[SWS_Rte_07055] [SWS_Rte_07150]
[SWS_Rte_07151] [SWS_Rte_07152]
[SWS_Rte_07153] [SWS_Rte_07154]
[SWS_Rte_07157] [SWS_Rte_07173]
[SWS_Rte_07258] [SWS_Rte_07259]
[SWS_Rte_07260] [SWS_Rte_07282]
[SWS_Rte_07286] [SWS_Rte_07293]
[SWS_Rte_07294] [SWS_Rte_07514]
[SWS_Rte_07530] [SWS_Rte_07531]
[SWS_Rte_07532] [SWS_Rte_07534]
[SWS_Rte_07535] [SWS_Rte_07538]
[SWS_Rte_07539] [SWS_Rte_07540]
[SWS_Rte_07541] [SWS_Rte_07556]
[SWS_Rte_07557] [SWS_Rte_07558]
[SWS_Rte_07559] [SWS_Rte_07560]
[SWS_Rte_07561] [SWS_Rte_07564]
[SWS_Rte_07694] [SWS_Rte_08600]
[SWS_Rte_08601]
[SRS_Rte_00214] Common Mode handling for [SWS_Rte_02697] [SWS_Rte_07258]
Basic SW and Application SW [SWS_Rte_07259] [SWS_Rte_07286]
[SWS_Rte_07535] [SWS_Rte_07564]
[SWS_Rte_07582] [SWS_Rte_07583]
[SRS_Rte_00215] API for Mode switch notification [SWS_Rte_07255] [SWS_Rte_07256]
to the SchM [SWS_Rte_07261] [SWS_Rte_08507]

57 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00216] Triggering of BSW Schedulable [SWS_Rte_04542] [SWS_Rte_04543]

Entities by occurrence of [SWS_Rte_07213] [SWS_Rte_07214]
External Trigger [SWS_Rte_07216] [SWS_Rte_07218]
[SWS_Rte_07282] [SWS_Rte_07514]
[SWS_Rte_07542] [SWS_Rte_07544]
[SWS_Rte_07545] [SWS_Rte_07546]
[SWS_Rte_07548] [SWS_Rte_07549]
[SRS_Rte_00217] Synchronized activation of [SWS_Rte_02697] [SWS_Rte_07218]
Runnable Entities and BSW [SWS_Rte_07549]
Schedulable Entities
[SRS_Rte_00218] API for Triggering BSW modules [SWS_Rte_07263] [SWS_Rte_07264]
by Triggered Events [SWS_Rte_07266] [SWS_Rte_07267]
[SRS_Rte_00219] Support for interlaced execution [SWS_Rte_02697] [SWS_Rte_07517]
sequences of Runnable Entities [SWS_Rte_07518]
and BSW Schedulable Entities
[SRS_Rte_00220] ECU life cycle dependent [SWS_Rte_02538] [SWS_Rte_07580]
scheduling
[SRS_Rte_00221] Support for "BSW integration" [SWS_Rte_07569] [SWS_Rte_07585]
builds
[SRS_Rte_00222] Support shared exclusive areas [SWS_Rte_07250] [SWS_Rte_07251]
in BSW Service Modules and [SWS_Rte_07252] [SWS_Rte_07253]
the corresponding Service [SWS_Rte_07254] [SWS_Rte_07522]
Component [SWS_Rte_07523] [SWS_Rte_07524]
[SWS_Rte_07578] [SWS_Rte_07579]
[SRS_Rte_00223] Callout for partition termination [SWS_Rte_07330] [SWS_Rte_07331]
notification [SWS_Rte_07334] [SWS_Rte_07335]
[SWS_Rte_07617] [SWS_Rte_07619]
[SWS_Rte_07620] [SWS_Rte_07622]
[SRS_Rte_00224] Callout for partition restart [SWS_Rte_07188] [SWS_Rte_07336]
request [SWS_Rte_07338] [SWS_Rte_07339]
[SWS_Rte_07340] [SWS_Rte_07341]
[SWS_Rte_07342] [SWS_Rte_07643]
[SWS_Rte_07644] [SWS_Rte_07645]
[SRS_Rte_00228] Fan-out NvBlock callback [SWS_Rte_07623] [SWS_Rte_07624]
function [SWS_Rte_07625] [SWS_Rte_07626]
[SWS_Rte_07627] [SWS_Rte_07628]
[SWS_Rte_07629] [SWS_Rte_07630]
[SWS_Rte_07631] [SWS_Rte_07671]
[SWS_Rte_07672]
[SRS_Rte_00229] Support for Variant Handling of [SWS_Rte_06500] [SWS_Rte_06503]
BSW Modules [SWS_Rte_06504] [SWS_Rte_06507]
[SWS_Rte_06508] [SWS_Rte_06532]
[SWS_Rte_06533] [SWS_Rte_06534]
[SWS_Rte_06535] [SWS_Rte_06536]
[SWS_Rte_06537] [SWS_Rte_06543]
[SWS_Rte_06546] [SWS_Rte_06548]
[SWS_Rte_08789] [SWS_Rte_08790]
[SRS_Rte_00230] Triggering of BSW Schedulable [SWS_Rte_07229] [SWS_Rte_07551]
Entities by occurrence of [SWS_Rte_07552] [SWS_Rte_07553]
Internal Trigger [SWS_Rte_07554]
[SRS_Rte_00231] Support native interface [SWS_Rte_01377] [SWS_Rte_01378]
between Rte and Com for [SWS_Rte_07408] [SWS_Rte_07817]
Strings and uint8 arrays

58 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SRS_Rte_00232] Synchronization of runnable [SWS_Rte_07804] [SWS_Rte_07805]

entities [SWS_Rte_07806] [SWS_Rte_07807]
[SRS_Rte_00233] Generation of the Basic [SWS_Rte_05086] [SWS_Rte_05165]
Software Module Description [SWS_Rte_05166] [SWS_Rte_05167]
[SWS_Rte_05177] [SWS_Rte_05179]
[SWS_Rte_05180] [SWS_Rte_05181]
[SWS_Rte_05182] [SWS_Rte_05183]
[SWS_Rte_05184] [SWS_Rte_05185]
[SWS_Rte_05186] [SWS_Rte_05187]
[SWS_Rte_05188] [SWS_Rte_05189]
[SWS_Rte_05190] [SWS_Rte_05191]
[SWS_Rte_05192] [SWS_Rte_06725]
[SWS_Rte_07085] [SWS_Rte_08305]
[SWS_Rte_08404]
[SRS_Rte_00234] Support for Record Type [SWS_Rte_07091] [SWS_Rte_07092]
sub-setting [SWS_Rte_07099]
[SRS_Rte_00235] Support queued triggers [SWS_Rte_06720] [SWS_Rte_06721]
[SWS_Rte_06722] [SWS_Rte_06723]
[SWS_Rte_07087] [SWS_Rte_07088]
[SWS_Rte_07089] [SWS_Rte_07090]
[SRS_Rte_00236] Support for ModeInterface [SWS_Rte_08511] [SWS_Rte_08512]
Mapping [SWS_Rte_08513] [SWS_Rte_08514]
[SRS_Rte_00237] Time recurrent activation of [SWS_Rte_06728] [SWS_Rte_06729]
Runnable Entities [SWS_Rte_06730]
[SRS_Rte_00238] Allow enabling of RTE-Feature [SWS_Rte_01126] [SWS_Rte_07194]
to get the activating Event of [SWS_Rte_07195] [SWS_Rte_07282]
Executable Entity [SWS_Rte_08051] [SWS_Rte_08052]
[SWS_Rte_08053] [SWS_Rte_08054]
[SWS_Rte_08055] [SWS_Rte_08056]
[SWS_Rte_08057] [SWS_Rte_08058]
[SWS_Rte_08059] [SWS_Rte_08060]
[SWS_Rte_08071]
[SRS_Rte_00239] Support rule-based initialization [SWS_Rte_06733] [SWS_Rte_06734]
of composite DataPrototypes [SWS_Rte_06735] [SWS_Rte_06736]
and compound primitive Data [SWS_Rte_06764] [SWS_Rte_06765]
Prototypes [SWS_Rte_08542] [SWS_Rte_08792]
[SRS_Rte_00240] Support of init runnables for [SWS_Rte_06748] [SWS_Rte_06749]
initialization purposes [SWS_Rte_06750] [SWS_Rte_06751]
[SWS_Rte_06752] [SWS_Rte_06753]
[SWS_Rte_06754] [SWS_Rte_06755]
[SWS_Rte_06756] [SWS_Rte_06757]
[SWS_Rte_06758] [SWS_Rte_06759]
[SWS_Rte_06760] [SWS_Rte_06761]
[SWS_Rte_06762] [SWS_Rte_06767]
[SWS_Rte_06768] [SWS_Rte_06769]
[SWS_Rte_06770]
[SRS_Rte_00241] Support for Local or Remote [SWS_Rte_08765]
Handling of BSW Service Calls
on Partitioned Systems

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[SRS_Rte_00243] Support for inter-partition [SWS_Rte_08420] [SWS_Rte_08421]

communication of BSW modules [SWS_Rte_08422] [SWS_Rte_08733]
[SWS_Rte_08734] [SWS_Rte_08735]
[SWS_Rte_08736] [SWS_Rte_08737]
[SWS_Rte_08738] [SWS_Rte_08739]
[SWS_Rte_08743] [SWS_Rte_08744]
[SWS_Rte_08747] [SWS_Rte_08748]
[SWS_Rte_08751] [SWS_Rte_08752]
[SWS_Rte_08753] [SWS_Rte_08754]
[SWS_Rte_08755] [SWS_Rte_08756]
[SWS_Rte_08763] [SWS_Rte_08764]
[SWS_Rte_08765] [SWS_Rte_08766]
[SRS_Rte_00244] Support for bypass [SWS_Rte_06033] [SWS_Rte_06034]
[SWS_Rte_06035] [SWS_Rte_06036]
[SWS_Rte_06037] [SWS_Rte_06038]
[SWS_Rte_06039] [SWS_Rte_06040]
[SWS_Rte_06041] [SWS_Rte_06042]
[SWS_Rte_06043] [SWS_Rte_06044]
[SWS_Rte_06045] [SWS_Rte_06046]
[SWS_Rte_06047] [SWS_Rte_06048]
[SWS_Rte_06049] [SWS_Rte_06050]
[SWS_Rte_06051] [SWS_Rte_06052]
[SWS_Rte_06053] [SWS_Rte_06054]
[SWS_Rte_06055] [SWS_Rte_06056]
[SWS_Rte_06057] [SWS_Rte_06058]
[SWS_Rte_06059] [SWS_Rte_06060]
[SWS_Rte_06061] [SWS_Rte_06064]
[SWS_Rte_06065] [SWS_Rte_06066]
[SWS_Rte_06067] [SWS_Rte_06068]
[SWS_Rte_06069] [SWS_Rte_06073]
[SWS_Rte_06074] [SWS_Rte_06075]
[SWS_Rte_06076] [SWS_Rte_06077]
[SWS_Rte_06079] [SWS_Rte_06080]
[SWS_Rte_06081] [SWS_Rte_06082]
[SWS_Rte_06083] [SWS_Rte_06084]
[SWS_Rte_06085] [SWS_Rte_06086]
[SWS_Rte_06087] [SWS_Rte_06088]
[SWS_Rte_06089] [SWS_Rte_06090]
[SWS_Rte_06091] [SWS_Rte_06092]
[SWS_Rte_06093] [SWS_Rte_06094]
[SWS_Rte_06095] [SWS_Rte_06096]
[SWS_Rte_06097] [SWS_Rte_06098]
[SWS_Rte_06099] [SWS_Rte_06100]
[SWS_Rte_06101] [SWS_Rte_06102]
[SWS_Rte_06103] [SWS_Rte_06104]
[SWS_Rte_06105] [SWS_Rte_06106]
[SWS_Rte_06107] [SWS_Rte_06108]
[SWS_Rte_06109] [SWS_Rte_06110]

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[SWS_Rte_06111] [SWS_Rte_06112]
[SWS_Rte_06113] [SWS_Rte_06114]
[SWS_Rte_06115] [SWS_Rte_06120]
[SWS_Rte_07833] [SWS_Rte_07834]
[SWS_Rte_07835] [SWS_Rte_07836]
[SWS_Rte_07837] [SWS_Rte_07838]
[SWS_Rte_07839] [SWS_Rte_07840]
[SWS_Rte_07841]
[SRS_Rte_00245] Support of Writing Strategies for [SWS_Rte_07416] [SWS_Rte_08080]
NV data [SWS_Rte_08081] [SWS_Rte_08082]
[SWS_Rte_08083] [SWS_Rte_08084]
[SWS_Rte_08085] [SWS_Rte_08086]
[SWS_Rte_08087] [SWS_Rte_08088]
[SWS_Rte_08089] [SWS_Rte_08090]
[SWS_Rte_08091] [SWS_Rte_08092]
[SWS_Rte_08093] [SWS_Rte_08094]
[SWS_Rte_08111]
[SRS_Rte_00246] Support of Efficient COM for [SWS_Rte_01376] [SWS_Rte_01379]
large data [SWS_Rte_01380] [SWS_Rte_01381]
[SWS_Rte_01382] [SWS_Rte_01383]
[SWS_Rte_01384] [SWS_Rte_01385]
[SWS_Rte_01386] [SWS_Rte_01387]
[SWS_Rte_01388] [SWS_Rte_01389]
[SWS_Rte_01390] [SWS_Rte_01391]
[SWS_Rte_01392] [SWS_Rte_01393]
[SWS_Rte_01394] [SWS_Rte_01395]
[SWS_Rte_01396] [SWS_Rte_01397]
[SWS_Rte_01398] [SWS_Rte_01399]
[SWS_Rte_01400] [SWS_Rte_01401]
[SWS_Rte_01402] [SWS_Rte_01403]
[SWS_Rte_01404] [SWS_Rte_01405]
[SWS_Rte_01406] [SWS_Rte_01407]
[SWS_Rte_01408] [SWS_Rte_01409]
[SWS_Rte_01410] [SWS_Rte_01411]
[SRS_Rte_00247] The Rte shall execute [SWS_Rte_04540] [SWS_Rte_04541]
transformer chains for SWC [SWS_Rte_06023] [SWS_Rte_08110]
communication [SWS_Rte_08515] [SWS_Rte_08516]
[SWS_Rte_08517] [SWS_Rte_08518]
[SWS_Rte_08519] [SWS_Rte_08520]
[SWS_Rte_08521] [SWS_Rte_08522]
[SWS_Rte_08523] [SWS_Rte_08524]
[SWS_Rte_08525] [SWS_Rte_08526]
[SWS_Rte_08527] [SWS_Rte_08528]
[SWS_Rte_08529] [SWS_Rte_08530]
[SWS_Rte_08538] [SWS_Rte_08570]
[SWS_Rte_08571] [SWS_Rte_08587]
[SWS_Rte_08588] [SWS_Rte_08589]
[SWS_Rte_08590] [SWS_Rte_08596]
[SWS_Rte_08597] [SWS_Rte_08598]
[SWS_Rte_08599] [SWS_Rte_08793]
[SWS_Rte_08794] [SWS_Rte_08795]
[SWS_Rte_08796] [SWS_Rte_08797]
[SWS_Rte_08798] [SWS_Rte_08799]

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[SRS_Rte_00248] The Rte shall provide the buffer [SWS_Rte_03867] [SWS_Rte_08531]

for the data transformation [SWS_Rte_08532] [SWS_Rte_08533]
[SWS_Rte_08534] [SWS_Rte_08535]
[SWS_Rte_08536] [SWS_Rte_08537]
[SWS_Rte_08550]
[SRS_Rte_00249] The Rte shall provide [SWS_Rte_05300] [SWS_Rte_05301]
transformation errors to the [SWS_Rte_07417] [SWS_Rte_07418]
SWCs [SWS_Rte_07419] [SWS_Rte_07420]
[SWS_Rte_08424] [SWS_Rte_08539]
[SWS_Rte_08540] [SWS_Rte_08541]
[SWS_Rte_08543] [SWS_Rte_08544]
[SWS_Rte_08545] [SWS_Rte_08558]
[SWS_Rte_08559] [SWS_Rte_08560]
[SWS_Rte_08561] [SWS_Rte_08562]
[SWS_Rte_08563] [SWS_Rte_08564]
[SWS_Rte_08565] [SWS_Rte_08566]
[SWS_Rte_08567] [SWS_Rte_08568]
[SWS_Rte_08569] [SWS_Rte_08574]
[SWS_Rte_08575] [SWS_Rte_08582]
[SWS_Rte_08584] [SWS_Rte_08585]
[SWS_Rte_08791]
[SRS_Rte_00251] Array based signal group [SWS_Rte_08586]
handling with Com
[SRS_Rte_00252] Encapsulate a BSW Module [SWS_Rte_03983] [SWS_Rte_03984]
local name space [SWS_Rte_03985] [SWS_Rte_03990]
[SWS_Rte_03991] [SWS_Rte_03992]
[SWS_Rte_03994] [SWS_Rte_03995]
[SWS_Rte_03996] [SWS_Rte_03997]
[SWS_Rte_07415]
[SRS_Rte_00253] The RTE shall execute data [SWS_Rte_08105] [SWS_Rte_08107]
transformation for SWC/BSW [SWS_Rte_08108] [SWS_Rte_08109]
communication within one ECU

Table 1.2: Requirements tracing

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2 RTE Overview

2.1 The RTE in the Context of AUTOSAR

The Run-Time Environment (RTE) is at the heart of the AUTOSAR ECU architecture.
The RTE is the realization (for a particular ECU) of the interfaces of the AUTOSAR
Virtual Function Bus (VFB). The RTE provides the infrastructure services that enable
communication to occur between AUTOSAR software-components as well as acting as
the means by which AUTOSAR software-components access basic software modules
including the OS and communication service.
The RTE encompasses both the variable elements of the system infrastructure that
arise from the different mappings of components to ECUs as well as standardized RTE
services.
In principle the RTE can be logically divided into two sub-parts realizing:
the communication between software components
the scheduling of the software components
To fully describe the concept of the RTE, the Basic Software Scheduler has to be
considered as well. The Basic Software Scheduler schedules the schedulable entities
of the basic software modules. In some documents the schedulable entities are also
called main processing functions.
Due to the situation that the same OS Task might be used for the scheduling of software
components and basic software modules the scheduling part of the RTE is strongly
linked with the Basic Software Scheduler and can not be clearly separated.
The RTE and the Basic Software Scheduler is generated1 for each ECU to ensure that
the RTE and Basic Software Scheduler is optimal for the ECU [SRS_Rte_00023].

2.2 AUTOSAR Concepts

This section introduces some important AUTOSAR concepts and how they are imple-
mented within the context of the RTE.

2.2.1 AUTOSAR Software-components

In AUTOSAR, application software is conceptually located above the AUTOSAR RTE

and consists of AUTOSAR application software-components that are ECU and loca-
1
An implementation is free to configure rather than generate the RTE and Basic Software Sched-
uler. The remainder of this specification refers to generation for reasons of simplicity only and these
references should not be interpreted as ruling out either a wholly configured, or partially generated and
partially configured, RTE and Basic Software Scheduler implementation.

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tion independent and AUTOSAR sensor-actuator components that are dependent on

ECU hardware and thus not readily relocatable for reasons of performance/efficiency.
This means that, subject to constraints imposed by the system designer, an AUTOSAR
software-component can be deployed to any available ECU during system configura-
tion. The RTE is then responsible for ensuring that components can communicate
and that the system continues to function as expected wherever the components are
deployed. Considering sensor/actuator software components, they may only directly
address the local ECU abstraction. Therefore, access to remote ECU abstraction shall
be done through an intermediate sensor/actuator software component which broad-
casts the information on the remote ECU. Hence, moving the sensor/actuator software
components on different ECUs, may then imply to also move connected devices (sen-
sor/actuator) to the same ECU (provided that efficient access is needed).
An AUTOSAR software-component is defined by a type definition that defines the com-
ponents interfaces. A component type is instantiated when the component is deployed
to an ECU. A component type can be instantiated more than once on the same ECU in
which case the component type is said to be multiple instantiated. The RTE supports
per-instance memory sections that enable each component instance to have private
states.
The RTE supports both AUTOSAR software-components where the source is available
(source-code software-components) [SRS_Rte_00024] and AUTOSAR software-
components where only the object code (object-code software components) is avail-
able [SRS_Rte_00140].
Details of AUTOSAR software-components in relation to the RTE are presented in
Section 4.1.3.

2.2.2 Basic Software Modules

As well as AUTOSAR software-components an AUTOSAR ECU includes basic soft-

ware modules. Basic software modules can access the ECU abstraction layer as well
as other basic software modules directly and are thus neither ECU nor location inde-
pendent 2 .
An AUTOSAR software-component cannot directly access basic software modules
all communication is via AUTOSAR interfaces and therefore under the control of the
RTE. The requirement to not have direct access applies to all Basic Software Modules
including the operating system [SRS_Rte_00020] and the communication service.
2
The functionality provided by a basic software module cannot be relocated in another ECU. However,
the source of some basic software modules can be reused on other ECUs.

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2.2.3 Communication

The communication interface of an AUTOSAR software-component consists of several

ports (which are characterized by port-interfaces). An AUTOSAR software-component
can communicate through its interfaces with other AUTOSAR software-components
(whether that component is located on the same ECU or on a different ECU) or
with basic software modules that have ports and runnables (i.e ServiceSwCompo-
nents, EcuAbstractionSwComponents and ComplexDeviceDriverSwCompo-
nents) and are located on the same ECU. This communication can only occur via
the components ports. A port can be categorized by either a sender-receiver or client-
server port-interface. A sender-receiver interface provides a message passing facility
whereas a client-server interface provides function invocation.

2.2.3.1 Communication Paradigms

The RTE provides different paradigms for the communication between software-
component instances: sender-receiver (signal passing), client-server (function invo-
cation), mode switch, and NvBlockSwComponentType interaction.
Each communication paradigm can be applied to intra-partition software-component
distribution (which includes both intra-task and inter-task distribution, within the same
Partition), inter-Partition software-component distribution, and inter-ECU software-
component distribution. Intra-task communication occurs between runnable entities
that are mapped to the same OS task whereas inter-task communication occurs be-
tween runnable entities mapped to different tasks of the same Partition and can there-
fore involve a context switch. Inter-Partition communication occurs between runnable
entities in components mapped to different partitions of the same ECU and therefore in-
volve a context switch and crossing a protection boundary (memory protection, timing
protection, isolation on a core). Inter-ECU communication occurs between runnable
entities in components that have been mapped to different ECUs and so is inherently
concurrent and involves potentially unreliable communication.
Details of the communication paradigms that are supported by the RTE are contained
in Section 4.3.

2.2.3.2 Communication Modes

The RTE supports two modes for sender-receiver communication:

Explicit A component uses explicit RTE API calls to send and receive data
elements [SRS_Rte_00098].
Implicit The RTE automatically reads a specified set of data elements before
a runnable is invoked and automatically writes (a different) set of data elements
after the runnable entity has terminated [SRS_Rte_00128] [SRS_Rte_00129].

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The term implicit is used here since the runnable does not actively initiate the
reception or transmission of data.
Implicit and explicit communication is considered in greater detail in Section 4.3.1.5.

2.2.3.3 Static Communication

[SWS_Rte_06026] d The RTE shall support static communication only. c

(SRS_Rte_00025)
Static communication includes only those communication connections where the
source(s) and destination(s) of all communication is known at the point the RTE is
generated. [SRS_Rte_00025]. This includes also connections which are subject to
variability because the variant handling concept of AUTOSAR does only support the
selection of connectors from a superset of possible connectors to define a particular
variant.
Dynamic reconfiguration of communication is not supported due to the run-time and
code overhead which would therefore limit the range of devices for which the RTE is
suitable.

2.2.3.4 Multiplicity

As well as point to point communication (i.e. 1:1) the RTE supports communication
connections with multiple providers or requires:
When using sender-receiver communication, the RTE supports both 1:n (sin-
gle sender with multiple receivers) [SRS_Rte_00028] and n:1 (multiple senders
and a single receiver) [SRS_Rte_00131] communication with the restriction that
multiple senders are not allowed for mode switch notifications, see meta-
model restrictions [SWS_Rte_02670].
The execution of the multiple senders or receivers is not coordinated by the RTE.
This means that the actions of different software-components are independent
the RTE does not ensure that different senders transmit data simultaneously and
does not ensure that all receivers read data or receive events simultaneously.
When using client-server communication, the RTE supports n:1 (multiple clients
and a single server) [SRS_Rte_00029] communication. The RTE does not sup-
port 1:n (single client with multiple servers) client-server communication.
Irrespective of whether 1:1, n:1 or 1:n communication is used, the RTE is respon-
sible for implementing the communication connections and therefore the AUTOSAR
software-component is unaware of the configuration. This permits an AUTOSAR
software-component to be redeployed in a different configuration without modification.

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2.2.4 Concurrency

AUTOSAR software-components have no direct access to the OS and hence there are
no tasks in an AUTOSAR application. Instead, concurrent activity within AUTOSAR
is based around RunnableEntitys within components that are invoked by the RTE.
The AUTOSAR VFB specification [1] defines a runnable entity as a sequence of in-
structions that can be started by the Run-Time Environment. A component provides
usually one3 or more runnable entities [SRS_Rte_00031] and each runnable entity
has exactly one entry point. An entry point defines the symbol within the software-
components code that provides the implementation of a runnable entity.
The RTE is responsible for invoking runnable entities AUTOSAR software-
components are not able to (dynamically) create private threads of control. Hence,
all activity within an AUTOSAR application is initiated by the triggering of runnable en-
tities by the RTE as a result of RTEEvents.
An RTEEvent encompasses all possible situations that can trigger execution of a runn-
able entity by the RTE. The different classes of RTEEvent are defined in Section 5.7.5.
The RTE supports runnable entities in any component that has an AUTOSAR interface
- this includes AUTOSAR software-components and basic software modules.4
Runnable entities are divided into multiple categories with each category supporting
different facilities. The categories supported by the RTE are described in Section
4.2.2.3.

2.3 The RTE Generator

The RTE generator is one of a set of tools5 that create the realization of the AUTOSAR
virtual function bus for an ECU based on information in the ECU Configuration De-
scription. The RTE Generator is responsible for creating the AUTOSAR software-
component API functions that link AUTOSAR software-components to the OS and
manage communication between AUTOSAR software-components and between AU-
TOSAR software-components and basic software modules.
Additionally the RTE Generator creates both the Basic Software Scheduler and the Ba-
sic Software Scheduler API functions for each particular instance of a Basic Software
Module.
The RTE generation process for SWCs has two main phases:
3
There are use cases where a SWC might exist without any RunnableEntity.
4
The OS and COM are basic software modules but present a standardized interface to the RTE and
have no AUTOSAR interface. The OS and COM therefore do not have runnable entities.
5
The RTE generator works in conjunction with other tools, for example, the OS and COM generators,
to fully realize the AUTOSAR VFB.

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RTE Contract phase a limited set of information about a component, principally

the AUTOSAR interface definitions, is used to create an application header file
for a component type. The application header file defines the contract between
component and RTE.
RTE Generation phase - all relevant information about components, their de-
ployment to ECUs and communication connections is used to generate the RTE
and optionally the Ioc configuration [4]. One RTE is generated for each ECU in
the system.
The two-phase development model ensures that the RTE generated application header
files are available for use for source-code AUTOSAR software-components as well
as object-code AUTOSAR software-components with both types of component having
access to all definitions created as part of the RTE generation process.
The RTE generation process, and the necessary inputs in each phase, are considered
in more detail in chapter 3.

2.4 Design Decisions

This section details decisions that affect both the general direction that has been taken
as well as the actual content of this document.
1. The role of this document is to specify RTE behavior, not RTE implementation.
Implementation details should not be considered to be part of the RTE software
specification unless they are explicitly marked as RTE requirements.
2. An AUTOSAR system consists of multiple ECUs each of which contains an RTE
that may have been generated by different RTE generators. Consequently, the
specification of how RTEs from multiple vendors interoperate is considered to be
within the scope of this document.
3. The RTE does not have sufficient information to be able to derive a mapping from
runnable entity to OS task. The decision was therefore taken to require that the
mapping be specified as part of the RTE input.
4. Support for C++ is provided by making the C RTE API available for C++ com-
ponents rather than specifying a completely separate object-oriented API. This
decision was taken for two reasons; firstly the same interface for the C and C++
simplifies the learning curve and secondly a single interface greatly simplifies
both the specification and any subsequent implementations.
5. There is no support within the specification for Java.
6. The AUTOSAR meta-model is a highly expressive language for defining sys-
tems however for reasons of practicality certain restrictions and constraints have
been placed on the use of the meta-model. The restrictions are described in
Appendix A.

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3 RTE Generation Process

This chapter describes the methodology of the RTE and Basic Software Scheduler
generation. For a detailed description of the overall AUTOSAR methodology refer to
methodology document [6].
[SWS_Rte_02514] d The RTE generator shall produce the same RTE API, RTE code,
SchM API and SchM code when the input information is the same. c(SRS_Rte_00065)
The RTE Generator gets involved in the AUTOSAR Methodology several times in dif-
ferent roles. Technically the RTE Generator can be implemented as one tool which
is invoked with options to switch between the different roles. Or the RTE Generator
could be a set of separate tools. In the following section the individual applications of
the RTE Generator are described based on the roles that are take, not necessarily the
actual tools.
The RTE Generator is used in different roles for the following phases:
RTE Contract Phase
Basic Software Scheduler Contract Phase
PreBuild Data Set Contract Phase
Basic Software Scheduler Generation Phase
RTE Generation Phase
PreBuild Data Set Generation Phase
PostBuild Data Set Generation Phase
RTE Generator for Software-Components
In Figure 3.1 the overall AUTOSAR Methodology wrt. Application SW-Components
and the RTE Generator.

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.XML .XML
Collection Configure System
of System Configuration
Available Description
SWC :System
Implementations

.XML
Generate ECU Extract
Base ECU Extract of ECU-Specific
Configuration System Information
Configuration
:System

.c .obj
RTE Compiled
Code BSW

.XML .obj .exe

ECU Generate RTE Compile RTE Compiled Generate ECU
Configuration RTE Executable Executable
Values

.h .obj
Compiled
RTE
SWC
Header
AUTOSAR Implementations
Edit ECU RTE
Configuration Generator

AUTOSAR
ECU
Configuration

Figure 3.1: System Build Methodology

The whole vehicle functionality is described with means of CompositionSwCom-

ponents, SwComponentPrototypes and AtomicSwComponents [2]. In the
CompositionSwComponent descriptions the connections between the software-
components ports are also defined. Such a collection of software-components con-
nected to each other, without the mapping on actual ECUs, is called the VFB view.
During the Configure System step the needed software-components, the available
ECUs and the System Constraints are resolved into a System Configuration Descrip-
tion. Now the SwComponentPrototypes and thus the associated AtomicSwCompo-
nents are mapped on the available ECUs.
Since in the VFB view the communication relationships between the AtomicSwCom-
ponents have been described and the mapping of each SwComponentPrototypes
and AtomicSwComponents to a specific ECU has been fixed, the communication ma-
trix can be generated. In the SwComponentType Description (using the format of
the AUTOSAR Software Component Template [2]) the data that is exchanged through
ports is defined in an abstract way. Now the System Configuration Generator needs to
define system signals (including the actual signal length and the frames in which they
will be transmitted) to be able to transmit the application data over the network. COM

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signals that correspond to the system signals will be later used by the RTE Generator
to actually transmit the application data.
In the next step the System Configuration Description is split into descriptions for
each individual ECU. During the generation of the Ecu Extract also the hierarchical
structure of the CompositionSwComponents of the VFB view is flattened and the
SwComponentPrototypes of the ECU Extract represent actual instances. The Ecu
Extract only contains information necessary to configure one ECU individually and it is
fed into the ECU Configuration for each ECU.
[SWS_Rte_05000] d The RTE is configured and generated for each ECU instance
individually. c(SRS_Rte_00021)
The ECU Configuration Editors (see also Section 3.3) are working iteratively on the
ECU Configuration Values until all configuration issues are resolved. There will be
the need for several configuration editors, each specialized on a specific part of ECU
Configuration. So one editor might be configuring the COM stack (not the communica-
tion matrix but the interaction of the individual modules) while another editor is used to
configure the RTE.
Since the configuration of a specific Basic-SW module is not entirely independent from
other modules there is the need to apply the editors several times to the ECU Config-
uration Values to ensure all configuration parameters are consistent.
Only when the configuration issues are resolved the RTE Generator will be used to
generate the actual RTE code (see also Section 3.4.2) which will then be compiled and
linked together with the other Basic-SW modules and the software-components code.
The RTE Generator needs to cope with many sources of information since the nec-
essary information for the RTE Generator is based on the ECU Configuration Values
which might be distributed over several files and itself references to multiple other AU-
TOSAR descriptions.
[SWS_Rte_08769] d RTE Generator shall support for reading single files and of sets
of files that are stored in a file system. The tool shall provide a mechanism to select a
specific file and sets of files in the file system. c(SRS_Rte_00048)
An AUTOSAR XML description can be shipped in several files. Some files could con-
tain data types others could contain interfaces, etc.
[SWS_Rte_08770] d An RTE Generator tools SHALL support the merging of AU-
TOSAR models that have been split up and stored in multiple partial models while
reading an set of files. Thereby the to be supported minimum granularity of an AU-
TOSAR model is defined by atpSplitable. The Merging of a model also in-
cludes the resolution of references. The RTE Generator SHALL be able to read the
submodels in any order. There is no preference. c(SRS_Rte_00048)
[SWS_Rte_08771] d RTE Generator SHALL support the interpretation and creation of
AUTOSAR XML descriptions. These descriptions SHALL be well-formed and valid
as defined by the XML recommendation, W3C XML 1.1 Specification, whether used
with or without the documents corresponding AUTOSAR XML schema(s). In other

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words: Even if the tool does not use standard XML mechanisms for validating the XML
descriptions it SHALL ensure that the XML descriptions can be successfully validated
against the AUTOSAR XML schema. c(SRS_Rte_00048)
[SWS_Rte_08772] d If an RTE Generator wants to validate an AUTOSAR XML de-
scription against an AUTOSAR schema, it SHALL provide the necessary schema files
in its own resources.
An RTE Generator shall use the SYSTEM-Identifier in the xsi:schemaLocation to iden-
tify an appropriate schema file. c(SRS_Rte_00048)
[SWS_Rte_08773] d RTE Generator shall provide a serialization for XML. c
(SRS_Rte_00048)
[SWS_Rte_08774] d RTE Generator shall not change model content passed to the
Generator c(SRS_Rte_00048)
[SWS_Rte_08775] d An RTE Generator MAY support the AUTOSAR extension mech-
anism SDGs if applicable.
If the RTE Generator does not need the additional information for its intended purpose
it SHALL ignore the irrelevant extensions SDGs. c(SRS_Rte_00048)
[SWS_Rte_08776] d An RTE Generator may use well structured error messages. c
(SRS_Rte_00048)
The following list is a collection of proposed information items in particular applicable
to log files used for exchanging information about errors.
ErrorCode A symbolic name for the message text
StandardErrorCode The reference to the AUTOSAR error code
ConstraintCode Reference to the semantic constraint mentioned in the AU-
TOSAR template specification.
Signature Signature of the message for duplicate checks
Timestamp A time stamp for the message
ShortName A unique identification which allows to refer to particular error mes-
sages
This can also be used to establish references between error messages, e.g. for
screening and also to trace back to root cause
Desc The human readable message text
Component Such information item may help the user to locate the problem in
the model
BaseUrl An url for a base directory which can be used as basis for file refer-
ences in a log file. This is typically the root direactory of a project structure.
ColumNumber The column of the error position

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LineNumber The line number of the error position

LongName The title of the error message
ObjectCategory The category of for example the involved ApplicationPrimitve-
DataType (e.g.VALUE)
PrimaryErrorReference Reference to the root cause if applicable
ScopeEntryReference Reference to a scoping message if applicable
Object The shortName based reference to the AUTOSAR element which
caused the error
ToolName The name of the tool which reported the error
ToolVersion The version of the tools which reported the error
IncidentUrl The Url which refers to the artifact in which the error occurs
Value The actual found value which caused the problem
This is just a rough sketch of the main steps necessary to build an ECU with AUTOSAR
and how the RTE is involved in this methodology. For a more detailed description of
the AUTOSAR Methodology please refer to the methodology document [6]. In the next
sections the steps with RTE interaction are explained in more detail.
RTE Generator for Basic Software Scheduler
In Figure 3.2 the overall AUTOSAR Methodology wrt. Basis Software Scheduler and
the RTE Generator interaction.

.c .obj
Rte Compiled
Code RTE
.XML .exe
ECU Generate Compile Generate ECU
Configuration SchM SchM Executable Executable
Values
.h .obj
Schm Compiled
Bsw BSW
Header
Edit ECU AUTOSAR
Configuration RTE
Generator

AUTOSAR
ECU
Configuration
Editors

Figure 3.2: Basic Software Scheduler Methodology

The ECU Configuration phase is the start of the Basic Software Scheduler configura-
tion where all the requirements of the different Basic Software Modules are collected.

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The Input information is provided in the Basic Software Module Descriptions [9] of the
individual Basic Software Modules.
The Basic Software Scheduler configuration is then generated into the Basic Software
Scheduler code which is compiled and built into the Ecu executable.

3.1 Contract Phase

3.1.1 RTE Contract Phase

To be able to support the AUTOSAR software-component development with RTE-

specific APIs the Component API (application header file) is generated from the
software-component Internal Behavior Description (see Figure 3.1) by the RTE Gen-
erator in the so called RTE Contract Phase (see Figure 3.3).
In the software-component Interface description which is using the AUTOSAR
Software Component Template at least the AUTOSAR Interfaces of the particular
software-component have to be described. This means the software-component Types
with Ports and their Interfaces. In the software-component Internal Behavior descrip-
tion additionally the Runnable Entities and the RTE Events are defined. From this
information the RTE Generator can generate specific APIs to access the Ports and
send and receive data.

.XML
SW-Component
Type Description :
AtomicSwComponentType

.c
.XML .XML
SW-Component
Implement Implementation Measure
SW-Component Component SW-Component Resources
Internal Behavior Implementation
Description [API Description [for
Generation] : Object-Code] :
SwcInternalBehavior Implementation

Generate Compile
Component API Component

.h .obj .XML
AUTOSAR Component Compiled SW-Component
Component API SW-Component Implementation
API Implementation Description

Figure 3.3: RTE Contract Phase

With the generated Component API (application header file) the Software Compo-
nent developer can provide the Software Components source code without being con-
cerned as to whether the communication will later be local or using some network(s).
It has to be considered that the AUTOSAR software-component development process
is iterative and that the AUTOSAR software-component description might be changed
during the development of the AUTOSAR software-component. This requires the ap-

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plication header file to be regenerated to reflect the changes done in the software-
component description.
When the software-component has been compiled successfully the Component Im-
plementation Description Generation tool will analyze the resulting object files and
enhance the software-component description with the information from the specific im-
plementation. This includes information about the actual memory needs for ROM as
well as for RAM and goes into the Component Implementation Description section of
the AUTOSAR Software Component Template.
Please note that in case of implemented PreCompileTime variability addition-
ally the PreBuild Data Set Contract Phase is required 3.2 to be able to compile the
software component.
So when a software-component is delivered it will consist of the following parts:
SW-Component Type Description
SW-Component Internal Behavior Description
The actual SW-Component implementation and/or compiled SW-Component
SW-Component Implementation Description
The above listed information will be needed to provide enough information for the Sys-
tem Generation steps when the whole system is assembled.

3.1.2 Basic Software Scheduler Contract Phase

To be able to support the Basic Software Module development with Basic Software
Scheduler specific APIs the Module Interlink Header ( 6.3.2) and Module Interlink
Types Header ( 6.3.1) containing the definitions and declaration for the Basic Soft-
ware Scheduler API related to the single Basic Software Module instance is generated
by the RTE Generator in the so called Basic Software Scheduler Contract Phase.
The required input is
Basic Software Module Description and
Basic Software Module Internal Behavior and
Basic Software Module Implementation
Please note that in case of implemented PreCompileTime variability addition-
ally the PreBuild Data Set Contract Phase is required 3.2 to be able to compile the
Basic Software Module.

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3.2 PreBuild Data Set Contract Phase

In the RTE PreBuild Data Set Contract Phase are the Condition Value Macros (see
5.3.8.2.2) generated which are required to resolve the implemented pre-build
variability of a particular software component or Basic Software Module.
The particular values are defined via PredefinedVariants. These Predefined-
Variant elements containing definition of SwSystemconstValues for SwSystem-
consts which shall be applied when resolving the variability during ECU Configuration.
The output of this phase is the RTE Configuration Header File 5.3.8. This file is re-
quired to compile a particular variant of a software component using PreCompile-
Time variability. The Condition Value Macros are used for the implementation
of PreCompileTime variability with preprocessor statements and therefore are
needed to run the C preprocessor resolving the implemented variability.

3.3 Edit ECU Configuration of the RTE

During the configuration of an ECU the RTE also needs to be configured. This is
divided into several steps which have to be performed iteratively: The configuration of
the RTE and the configuration of other modules.
So first the RTE Configuration Editor needs to collect all the information needed to
establish an operational RTE. This gathering includes information on the software-
component instances and their communication relationships, the Runnable Entities and
the involved RTE-Events and so on. The main source for all this information is the ECU
Configuration Values, which might provide references to further descriptions like the
software-component description or the System Configuration description.
An additional input source is the Specification of Timing Extensions [14]. This template
can be used to specify the execution order of runnable entities (see section Execution
order constraint). An RTE Configuration Editor can use the information to create and
check the configuration of the Rte Event to Os task mapping (see section 7.5.1).
The usage of ECU Configuration Editors covering different parts of the ECU Con-
figuration Values will if there are no cyclic dependencies which do not converge
converge to a stable configuration and then the ECU Configuration process is finished.
A detailed description of the ECU Configuration can be found in [5]. The next phase is
the generation of the actual RTE code.

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3.4 Generation Phase

After the ECU has been entirely configured the generation of the actual RTE inclusive
the Basic Software Scheduler part can be performed. Since all the relationships to
and from the other Basic-SW modules have been already resolved during the ECU
Configuration phase, the generation can be performed in parallel for all modules (see
Figure 3.4).

.XML
BSW-Module
Description : .h
BswModuleDescription
RTE Header

.XML .obj
Generate RTE Compile RTE Compiled RTE
ECU Configuration
Values

AUTOSAR
RTE
Generator
.c
RTE Code
.XML
MC-Support
.XML
IOC-Configuration

Figure 3.4: RTE Generation Phase

The Basic Software Scheduler is a part of the Rte and therefore not explicitly shown in
figure 3.4.

3.4.1 Basic Software Scheduler Generation Phase

Depending on the complexity of the ECU and the cooperation model of the different
software vendors it might be required to integrate the Basic Software stand alone with-
out software components.
Therefore the RTE Generator has to support the generation of the Basic Software
Scheduler without software component related RTE fragments. The Basic Software
Scheduler Generation Phase is only applicable for software builds which are not con-
taining any kind of software components.
[SWS_Rte_07569] d In the Basic Software Scheduler Generation Phase the RTE Gen-
erator shall generate the Basic Software Scheduler without the RTE functionality. c
(SRS_Rte_00221)
In this case the RTE Generator generates the API for Basic Software Modules and the
Basic Software Scheduling code only. When the input contains software component
related information this information raises an error.

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For instance:
Application Header Files are not generated for the software components con-
tained in the ECU extract.
Mapped RTEEvents are not permitted and the runnable calls are not generated
into the OS task bodies. Nevertheless all OS task bodies related to the Basic
Software Scheduler configuration are generated.
Mode machine instances mapped to the RTE are not supported.
[SWS_Rte_07585] d In the Basic Software Scheduler Generation Phase the RTE Gen-
erator shall reject input configuration containing software component related informa-
tion. c(SRS_Rte_00221)
The RTE Generator in the Basic Software Scheduler Generation Phase is also respon-
sible to generate additional artifacts which contribute to the further build, deployment
and calibration of the ECUs software.
[SWS_Rte_06725] d The RTE Generator in Basic Software Scheduler Genera-
tion Phase shall provide its Basic Software Module Description in order to cap-
ture the generated RTEs / Basic Software Scheduler attributes. c(SRS_Rte_00170,
SRS_Rte_00192, SRS_Rte_00233)
Details about the Basic Software Module Description generation can can be found in
section 3.4.3.
[SWS_Rte_06726] d The RTE Generator in Basic Software Scheduler Generation
Phase shall provide an MC-Support (Measurement and Calibration) description as part
of the Basic Software Module Description. c(SRS_Rte_00153, SRS_Rte_00189)
Details about the MC-Support can be found in section 4.2.8.4.
For software builds which are containing software components the RTE Generation
Phase 3.4.2 is applicable where the Basic Software Scheduler part of the RTE is gen-
erated as well.

3.4.2 RTE Generation Phase

The actual AUTOSAR software-components and Basic-SW modules code will be linked
together with the RTE and Basic Software Scheduler code to build the entire ECU
software.
Please note that in case of implemented PreCompileTime variability addition-
ally the PreBuild Data Set Generation Phase is required (see section 3.5) to be able to
compile the ECU software. Further on in case of implemented post-build vari-
ability PostBuild Data Set Generation Phase is required (see section 3.6) to be able
to link the full ECU software.

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The RTE Generator in the Generation Phase is also responsible to generate additional
artifacts which contribute to the further build, deployment and calibration of the ECUs
software.
[SWS_Rte_05086] d The RTE Generator in Generation Phase shall provide its Basic
Software Module Description in order to capture the generated RTEs attributes. c
(SRS_Rte_00170, SRS_Rte_00192, SRS_Rte_00233)
Details about the Basic Software Module Description generation can can be found in
section 3.4.3.
[SWS_Rte_05087] d The RTE Generator in Generation Phase shall provide an MC-
Support (Measurement and Calibration) description as part of the Basic Software Mod-
ule Description. c(SRS_Rte_00153, SRS_Rte_00189)
Details about the MC-Support can be found in section 4.2.8.4.
[SWS_Rte_05147] d The RTE Generator in Generation Phase shall provide the con-
figuration for the Ioc module [4] if the Ioc module is used. c(SRS_Rte_00196)
The RTE generates the IOC configurations and uses an implementation specific deter-
ministic generation scheme. This generation scheme can be used by implementations
to reuse these IOC configurations (e.g. if the configuration switch strictConfigu-
rationCheck is used).
[SWS_Rte_08400] d The RTE Generator in Generation Phase shall generate internal
ImplementationDataTypes types used for IOC configuration. c(SRS_Rte_00210)
The corresponding C data types will be generated into the Rte_Type.h. This
Rte_Type.h header file will be used by the IOC to get the types for the IOC API.
Changing the RTE generator will require a new IOC configuration generation.
Details about the Ioc module can be found in section 4.3.4.1.
[SWS_Rte_08305] d The RTE Generator in Generation Phase shall ignore XML-
Content categorized as ICS. c(SRS_Rte_00233)
ARPackage with category ICS describes an Implementation Conformance Statement.
(See TPS Basic Software Module Description [9] for more details.)

3.4.3 Basic Software Module Description generation

The Basic Software Module Description [9] generated by the RTE Generator in gen-
eration phase describes features of the actual RTE code. The following requirements
specify which elements of the Basic Software Module Description are mandatory to be
generated by the RTE Generator.

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3.4.3.1 Bsw Module Description

[SWS_Rte_05165] d The RTE Generator in Generation Phase shall provide the

BswModuleDescription element of the Basic Software Module Description for the
generated RTE. c(SRS_Rte_00233)
[SWS_Rte_08404] d The RTE BswModuleDescription shall be provided in
ARPackage AUTOSAR_Rte according to AUTOSAR Generic Structure Template [10]
(chapter "Identifying M1 elements in packages"). c(SRS_Rte_00233)
[SWS_Rte_05177] d The RTE Generator in Generation Phase shall provide the
BswModuleEntry and a reference to it from the BswModuleDescription in the role
providedEntry for each Standardized Interface provided by the RTE (see Layered
Software Architecture [15] page tz76a and page 94ju5). The provided Standardized
Interfaces are the Rte Lifecycle API (section 5.8) and the SchM Lifecycle API (sec-
tion 6.7). c(SRS_Rte_00233)
[SWS_Rte_05179] d The RTE Generator in Generation Phase shall provide the
BswModuleDependency in the BswModuleDescription with the role bswMod-
uleDependency for each callback API provided by the RTE and called by the re-
spective Basic Software Module. The reference from the BswModuleDependency to
the BswModuleEntry shall be in the role expectedCallback. The calling Basic
Software Module is specified in the attribute targetModuleId of the BswModuleDe-
pendency. c(SRS_Rte_00233)
For all the APIs the RTE code is invoking in other Basic Software Modules the depen-
dencies are described via requirement [SWS_Rte_05180].
[SWS_Rte_05180] d The RTE Generator in Generation Phase shall provide the
BswModuleDependency in the BswModuleDescription with the role bswMod-
uleDependency for each API called by the RTE in another Basic Software Module.
The reference from the BswModuleDependency to the BswModuleEntry shall be
in the role requiredEntry. The called Basic Software Module is specified in the
attribute targetModuleId of the BswModuleDependency. c(SRS_Rte_00233)
[SWS_Rte_07085] d If the Basic Software Module Description for the generated RTE
depends from elements in Basic Software Module Descriptions of other Basic Software
Modules the RTE Generator shall use the full qualified path name to this elements ac-
cording the rules in "Identifying M1 elements in packages" of the document AUTOSAR
Generic Structure Template [10]. c(SRS_Rte_00233)
For instance the description of the the hook function
1 void Rte_Dlt_Task_Activate(TaskType task)

for the Dlt needs the ImplementationDataType "TaskType" from the OS in order to
describe the data type of the SwServiceArg "task" in the description of the related
BswModuleEntry.
In this case the full qualified path name to the ImplementationDataType "Task-
Type" shall be

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1 AUTOSAR_OS/ImplementationDataTypes/TaskType

The full example about the description is given below:

<AR-PACKAGE>
<SHORT-NAME>AUTOSAR_RTE</SHORT-NAME>
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>BswModuleEntrys</SHORT-NAME>
<ELEMENTS>
<BSW-MODULE-ENTRY>
<SHORT-NAME>Rte_Dlt_Task_Activate</SHORT-NAME>
<ARGUMENTS>
<SW-SERVICE-ARG>
<SHORT-NAME>task</SHORT-NAME>
<CATEGORY>TYPE_REFERENCE</CATEGORY>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<IMPLEMENTATION-DATA-TYPE-REF DEST="IMPLEMENTATION-
DATA-TYPE">AUTOSAR_OS/ImplementationDataTypes/
TaskType</IMPLEMENTATION-DATA-TYPE-REF>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
</SW-SERVICE-ARG>
</ARGUMENTS>
</BSW-MODULE-ENTRY>
</ELEMENTS>
</AR-PACKAGE>

3.4.3.2 Bsw Internal Behavior

[SWS_Rte_05166] d The RTE Generator in Generation Phase shall provide the

BswInternalBehavior element in the BswModuleDescription of the Basic Soft-
ware Module Description for the generated RTE. c(SRS_Rte_00233)
[SWS_Rte_05181] d The RTE Generator in Generation Phase shall provide the
BswCalledEntity element in the BswInternalBehavior for each C-function im-
plementing the lifecycle APIs (section 5.8) and the SchM Lifecycle API (section 6.7).
The BswCalledEntity shall have a reference to the respective BswModuleEntry
([SWS_Rte_05177]) in the role implementedEntry. c(SRS_Rte_00233)
[SWS_Rte_05182] d The RTE Generator in Generation Phase shall provide the Vari-
ableDataPrototype element in the BswInternalBehavior in the role stat-
icMemory for each variable memory object the RTE allocates. c(SRS_Rte_00233)
[SWS_Rte_05183] d The RTE Generator in Generation Phase shall provide
the ParameterDataPrototype element in the BswInternalBehavior in the
role constantMemory for each constant memory object the RTE allocates. c
(SRS_Rte_00233)

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3.4.3.3 Bsw Implementation

[SWS_Rte_05167] d The RTE Generator in Generation Phase shall provide the

BswImplementation element and a reference to the BswInternalBehavior of
the Basic Software Module Description in the role behavior. c(SRS_Rte_00233)
[SWS_Rte_05187] d The RTE Generator in Generation Phase shall provide the pro-
grammingLanguage element in the BswImplementation element according to the
actual RTE implementation. c(SRS_Rte_00233)
[SWS_Rte_05186] d The RTE Generator in Generation Phase shall provide the
swVersion element in the BswImplementation element according to the input in-
formation from the RTE Ecu configuration ([SWS_Rte_05184], [SWS_Rte_05185]). c
(SRS_Rte_00233)
[SWS_Rte_05190] d The RTE Generator in Generation Phase shall provide the ar-
ReleaseVersion element in the BswImplementation element according to AU-
TOSAR release version the RTE Generator is based on. c(SRS_Rte_00233)
[SWS_Rte_05188] d The RTE Generator in Generation Phase shall provide the used-
CodeGenerator element in the BswImplementation element according to the ac-
tual RTE implementation. c(SRS_Rte_00233)
[SWS_Rte_05189] d The RTE Generator in Generation Phase shall provide the ven-
dorId element in the BswImplementation element according to the input informa-
tion from the RTE Ecu configuration (RteCodeVendorId). c(SRS_Rte_00233)
The RteCodeVendorId specifies the vendor id of the actual user of the RTE Gener-
ator, not the id of the RTE Vendor itself.
[SWS_Rte_05191] d If the generated RTE code is hardware specific (due to ven-
dor specific optimizations of the RTE Generator) then the reference to the applicable
HwElements from the ECU Resource Description [16] shall be provided in the BswIm-
plementation element with the role hwElement. c(SRS_Rte_00233)
[SWS_Rte_05192] d The RTE Generator in Generation Phase shall provide the De-
pendencyOnArtifact element in the BswImplementation with the role gener-
atedArtifact for all c- and header-files which are required to compile the Rte
code. This does not include other Basic Software modules or Application Software.
c(SRS_Rte_00233)
Note: The use case is the support of the build-environment (automatic or manual).
Attributes shall be used in this context as follow:
category shall be used as defined in Generic Structure Template [10] (e.g.
SWSRC, SWOBJ, SWHDR)
domain is optional and can be chosen freely
revisionLabel shall contain the revision label out of RTE Configuration

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shortLabel is the name of artifact

Details on the description of DependencyOnArtifact can be found in the Generic
Structure Template [10].
Additional elements of the Basic Software Module Description which shall be exported
are specified in later requirements e.g. in section 4.2.8.4.

3.5 PreBuild Data Set Generation Phase

During the PreBuild Data Set Generation Phase are the Condition Value Macros
(see 5.3.8.2.2) generated which are required to resolve the implemented pre-build
variability of the software components, generated RTE and Basic Software
Scheduler.
The particular values are defined via the EcucVariationResolver configuration
selecting PredefinedVariants. These PredefinedVariant elements containing
definition of SwSystemconstValues for SwSystemconsts which shall be applied
when resolving the variability during ECU Configuration.
The values of the Condition Value Macros are the results of evaluated Condition-
ByFormulas of the related VariationPoints. These ConditionByFormulas ref-
erencing SwSystemconsts in the formula expressions. It is supported that the as-
signed SwSystemconstValue might contain again a formula expressions referenc-
ing SwSystemconsts. Therefore the input might be a tree of formula expressions
and SwSystemconstValues but the leaf SwSystemconstValues are required to
be values which are not dependent from other SwSystemconsts to ensure that the
evaluation of the tree results in a unique number.
[SWS_Rte_06610] d The RTE generator shall validate the resolved pre-build variants
and check the integrity with regards to the meta model. Any meta model violation shall
result in the rejection of the input configuration. c(SRS_Rte_00018)
The output of this phase is the RTE Configuration Header File 5.3.8.This file is required
to compile a particular variant of ECU software including software component code and
RTE code using PreCompileTime variability. The Condition Value Macros are
used for the implementation of PreCompileTime variability with preprocessor
statements and therefore are needed to run the C preprocessor resolving the imple-
mented variability.

3.6 PostBuild Data Set Generation Phase

In the optional PostBuild Data Set Generation Phase the PredefinedVariant values
are generated which are required to resolve the implemented post-build vari-
ability of the software components and generated RTE.

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The output of this phase are the RTE Post Build Variant Sets 5.3.10. This file is required
to link the ECU software and to select a particular PostBuild variant in the generated
RTE code during start up when the Basic Software Scheduler is initialized.
[SWS_Rte_06611] d If the DET is enabled then the RTE shall generate validation code
which at runtime (i.e. during initialization) validates the resolved post-build variants and
check the integrity with regards to the active variants. If a violation is detected the RTE
shall report a default error to the DET. To execute this validation RTE initialization will
get a pointer to the RtePostBuildVariantConfiguration instance to allow it to
validate the selected variant. c(SRS_Rte_00191)
[SWS_Rte_06612] d The RTE generator shall create an RTE Post Build Data Set con-
figuration (i.e. Rte_PBcfg.c) representing the collection of PredefinedVariant defi-
nitions (typically for each subsystem and/or system configuration) providing and defin-
ing the post build variants of the RTE. c(SRS_Rte_00191)
Note that the Rte_PBcfg.h is generated during the Rte Generation phase. An
Rte_PBcfg.c may also have to be generated at that time to reserve memory (with de-
fault values).
Additional details about these configuration files are described in section 5.3.10.
An RTE variant can consist of a collection of PredefinedVariants. Each Pre-
definedVariant contains a collection of PostBuildVariantCriterionValues
which assigns a value to a specific PostBuildVariantCriterion which in turn is
used to resolve the variability at runtime by evaluating a PostBuildVariantCon-
dition. Different PredefinedVariants could assign different values to the same
PostBuildVariantCriterion and as such create conflicts for a specific Post-
BuildVariantCriterionValueSet. It is allowed to have different assignments if
these assignment assign the same value.
[SWS_Rte_06613] d The RTE Generator shall reject configurations where dif-
ferent PredefinedVariants assign different values to the same PostBuild-
VariantCriterion for the same RtePostBuildVariantConfiguration. c
(SRS_Rte_00018, SRS_Rte_00191)
[SWS_Rte_06814] d The RTE Generator shall reject configurations where multiple
post build variant instances of ParameterDataPrototypes are used but where not
exactly one instance in one RtePostBuildVariantConfiguration is selected. c
(SRS_Rte_00018, SRS_Rte_00191)
Further information can be found in section 4.2.8.3.7.

3.7 RTE Configuration interaction with other BSW Modules

The generated RTE interacts heavily with other AUTOSAR Basic Software Modules
like Com and Os. The configuration values for the different BSW Modules are stored
in individual structures of ECU Configuration it is however essential that the common

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used values are synchronized between the different BSW Modules configurations. AU-
TOSAR does not provide a standardized way how the individual configurations can be
synchronized, it is assumed that during the generation of the BSW Modules the input
information provided to the individual BSW Module is in sync with the input information
provided to other (dependent) BSW Modules.
The AUTOSAR BSW Module code-generation methodology is heavily relying on the
logical distinction between Configuration editors and configuration generators. These
tools do not necessarily have to be implemented as two separate tools, it just shall
be possible to distinguish the different roles the tools take during a certain step in the
methodology.
For the RTE it is assumed that tool support for the resolution of interactions between
the Rte and other BSW Modules is needed to allow an efficient configuration of the Rte.
It is however not specified how and in which tools this support shall be implemented.
The RTE Generator in Generation Phase needs information about other BSW Modules
configurations based on the configuration input of the Rte itself (there are references in
the configuration of the Rte which point to configuration values of other BSW Modules).
If during RTE Generation Phase the provided input information is inconsistent wrt. the
Rte input the Rte Generator will have to consider the input as invalid configuration.
[SWS_Rte_05149] d The RTE Generator in Generation Phase shall consider errors in
the Rte configuration input information as invalid configuration. c(SRS_Rte_00018)
Due to implementation freedom of the RTE Generator it is possible to correct / update
provided input configurations of other BSW Modules based on the RTE configuration
requirements. But to allow a stable build process it is also possible to disallow such an
update behavior.
[SWS_Rte_05150] d If the external configuration switch
strictConfigurationCheck is set to true the Rte Generator shall not create
or modify any configuration input. c(SRS_Rte_00065)
If the external configuration switch strictConfigurationCheck
(see [SWS_Rte_05148]) is set to false the Rte Generator may update the input
configuration information of the Rte and other BSW Modules.
Example: If the Rte configuration is referencing an OsTask which is not configured in
the provided Os configuration, the RTE Generator would behave like:
In case [SWS_Rte_05150] applies: Only show an error message.
Otherwise: Possible behavior: Show a warning message and modify the Os con-
figuration to contain the OsTask which is referred to by the Rte configuration (Of
course the Os configuration of this new OsTask needs to be refined afterwards).

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4 RTE Functional Specification

4.1 Architectural concepts

4.1.1 Scope

In this section the concept of an AUTOSAR software-component and its usage within
the RTE is introduced.
The AUTOSAR Software Component Template [2] defines the kinds of software-
components within the AUTOSAR context. These are shown in Figure 4.1. The ab-
stract SwComponentType can not be instantiated, so there can only be either a Com-
positionSwComponentType, a ParameterSwComponentType, or a specialized
class ApplicationSwComponentType, ServiceProxySwComponentType, Sen-
sorActuatorSwComponentType, NvBlockSwComponentType, ServiceSwCom-
ponentType, ComplexDeviceDriverSwComponentType, or EcuAbstraction-
SwComponentType of the abstract class AtomicSwComponentType.
In the following document the term AtomicSwComponentType is used as collective
term for all the mentioned non-abstract derived meta-classes.
The SwComponentType is defining the type of an AUTOSAR software-component
which is independent of any usage and can be potentially re-used several times in
different scenarios. In a composition the types are occurring in specific roles which are
called SwComponentPrototypes. The prototype is the utilization of a type within a
certain scenario. In AUTOSAR any SwComponentType can be used as a type for a
prototype.
ARElement AtpPrototype
AtpBlueprint SwComponentPrototype
AtpBlueprintable +type
AtpType
1 isOfType
SwComponentType {redefines
atpType}
atpVariation Tags: +component 0..*
vh.latestBindingTime =
postBuild atpVariation,atpSplitable

AtomicSwComponentType ParameterSwComponentType CompositionSwComponentType

ApplicationSwComponentType NvBlockSwComponentType ComplexDeviceDriverSwComponentType ServiceSwComponentType

EcuAbstractionSwComponentType SensorActuatorSwComponentType ServiceProxySwComponentType

Figure 4.1: AUTOSAR software-component classification

The AUTOSAR software-components shown in Figure 4.1 are located above and below
the RTE in the architectural Figure 4.2.

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Below the RTE there are also software entities that have an AUTOSAR Interface.
These are the AUTOSAR services, the ECU Abstraction and the Complex Device
Drivers. For these software not only the AUTOSAR Interface will be described but
also information about their internal structure will be available in the Basic Software
Module Description.

Figure 4.2: AUTOSAR ECU architecture diagram

In the next sections the different AUTOSAR software-components kinds will be de-
scribed in detail with respect to their influence on the RTE.

4.1.2 RTE and Data Types

The AUTOSAR Meta Model defines ApplicationDataTypes and Implementa-

tionDataTypes. A AutosarDataPrototype can be typed by an Application-
DataType or an ImplementationDataType. But the RTE Generator only imple-
ments ImplementationDataTypes as C data types and uses these C data types
to type the RTE API which is related to DataPrototypes. Therefore it is required
in the input configuration that every ApplicationDataType used for the typing of a

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DataPrototype which is relevant for RTE generation is mapped to an Implemen-

tationDataType with a DataTypeMap. Which DataTypeMap is applicable for an
particular software component respectively Basic Software Module is defined by
the DataTypeMappingSets referenced by the InternalBehavior.
[SWS_Rte_07028] d The RTE Generator shall reject input configurations containing
a AutosarDataPrototype which influences the generated RTE and which is typed
by an ApplicationDataType not mapped to an ImplementationDataType. c
(SRS_Rte_00018)
Nevertheless a subset of the attributes given by the ApplicationDataTypes are
relevant for the RTE generator for instance
to create the McSupportData (see section 4.2.8.4) information
to calculate the conversion formula in case of Data Conversion (see section 4.3.5
and 4.3.7)
to calculate numerical representation of values required for the RTE code but
defined in the physical representation (e.g. initialValues and invalid-
Values).
[SWS_Rte_01374] d When a value is required for the RTE code and is provided as an
ApplicationValueSpecification, if there is an applicable ConstantSpecifi-
cationMapping then the RTE Generator shall use the ValueSpecification ref-
erenced by its implConstant as the definitive numerical representation of the value
regardless of any compuMethod. c(SRS_Rte_00180, SRS_Rte_00182)
[SWS_Rte_07038] d When a value is required for the RTE code and is provided as an
ApplicationValueSpecification, if there is no applicable ConstantSpecifi-
cationMapping then the RTE Generator shall calculate the numerical representation
according to the conversion defined by an compuMethod. This shall be supported for
categorys VALUE, VAL_BLK, STRUCTURE, ARRAY, and BOOLEAN. In case of category
VAL_BLK, STRUCTURE and ARRAY, this applies only for the primitive leaf elements. If
there is no CompuMethod provided the conversion is treated like an CompuMethod of
category IDENTICAL. c(SRS_Rte_00180, SRS_Rte_00182)
In [SWS_Rte_01374] and [SWS_Rte_07038], an "applicable ConstantSpecifica-
tionMapping" is one that is aggregated by the relevant SwComponentType and
which references the ApplicationValueSpecification in its applConstant.

4.1.3 RTE and AUTOSAR Software-Components

The description of an AUTOSAR software-component is divided into the sections

hierarchical structure
ports and interfaces
internal behavior

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implementation
which will be addressed separately in the following sections.
[SWS_Rte_07196] d The RTE Generator shall respect the precedence of data prop-
erties defined via SwDataDefProps as defined in the Software Component Template
[2]. c()
Requirement [SWS_Rte_07196] means that:
1. SwDataDefProps defined on ApplicationDataType which may be overwrit-
ten by
2. SwDataDefProps defined on ImplementationDataType which may be over-
written by
3. SwDataDefProps defined on AutosarDataPrototype which may be over-
written by
4. SwDataDefProps defined on InstantiationDataDefProps which may be
overwritten by
5. SwDataDefProps defined on AccessPoint respectively Argument which may
be overwritten by
6. SwDataDefProps defined on FlatInstanceDescriptor which may be over-
written by
7. SwDataDefProps defined on McDataInstance
The SwDataDefProps defined on McDataInstance are not relevant for the RTE
generation but rather the documentation of the generated RTE.
Especially the attributes swAddrMethod, swCalibrationAccess, swImplPolicy
and dataConstr do have an impact on the generated RTE. In the following document
only the attribute names are mentioned with the semantic that this refers to the most
significant one.

4.1.3.1 Hierarchical Structure of Software-Components

In AUTOSAR the structure of an E/E-system is described using the AUTOSAR Soft-

ware Component Template and especially the mechanism of compositions. Such a
Top Level Composition assembles subsystems and connects their ports.
Of course such a composition utilizes a lot of hierarchical levels where compositions
instantiate other composition types and so on. But at some low hierarchical level each
composition only consists of AtomicSwComponentType instances. And those in-
stances of AtomicSwComponentTypes are what the RTE is going to be working with.

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4.1.3.2 Ports, Interfaces and Connections

Each AUTOSAR software-component (SwComponentType) can have ports (Port-

Prototype). An AUTOSAR software-component has provide ports (PPortProto-
type) and/or has require ports (RPortPrototype) to communicate with other AU-
TOSAR software-components. The requiredInterface or providedInterface
(PortInterface) determines if the port is a sender/receiver or a client/server port.
The attribute isService is used with AUTOSAR Services (see section 4.1.5).
ARElement
AtpBlueprint AtpBlueprintable
AtpBlueprintable +port AtpPrototype
AtpType PortPrototype
atpVariation,atpSplitable 0..*
SwComponentType

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

AbstractRequiredPortPrototype AbstractProvidedPortPrototype

RPortPrototype PRPortPrototype PPortPrototype

isOfType isOfType isOfType

1 1 1
{redefines {redefines {redefines
+requiredInterface atpType} +providedRequiredInterface atpType} +providedInterface atpType}
ARElement
AtpBlueprint
AtpBlueprintable
AtpType
PortInterface

+ isService :Boolean
+ serviceKind :ServiceProviderEnum [0..1]

Figure 4.3: Software-Components and Ports

When compositions are built of instances the ports can be connected either within the
composition or made accessible to the outside of the composition. For the connections
inside a composition the AssemblySwConnector is used, while the Delegation-
SwConnector is used to connect ports from the inside of a composition to the outside.
Ports not connected will be handled according to the requirement [SRS_Rte_00139].
The next step is to map the SW-C instances on ECUs and to establish the communi-
cation relationships. From this step the actual communication is derived, so it is now

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fixed if a connection between two instances ports is going to be over a communication

bus or locally within one ECU.
[SWS_Rte_02200] d The RTE shall implement the communication paths specified by
the ECU Configuration description. c(SRS_Rte_00027)
[SWS_Rte_02201] d The RTE shall implement the semantic of the communication at-
tributes given by the AUTOSAR software-component description. The semantic of the
given communication mechanism shall not change regardless of whether the commu-
nication partner is located on the same partition, on another partition of the same ECU
or on a remote ECU, or whether the communication is done by the RTE itself or by the
RTE calling COM or IOC. c(SRS_Rte_00027)
E.g., according to [SWS_Rte_02200] and [SWS_Rte_02201] the RTE is not permitted
to change the semantic of an asynchronous client to synchronous because both client
and server are mapped to the very same ECU.

4.1.3.3 Internal Behavior

Only for AtomicSwComponentTypes the internal structure is exposed in the SwcIn-

ternalBehavior description. Here the definition of the RunnableEntitys and
used RTEEvents is done (see Figure 4.4).
The AUTOSAR MetaModel enforces that there is at most one SwcInternalBehav-
ior per AtomicSwComponentType
Identifiable AtpStructureElement AutosarDataPrototype
ExclusiveArea +exclusiveArea InternalBehavior +constantMemory ParameterDataPrototype

0..* atpVariation,atpSplitable atpVariation,atpSplitable 0..*

+perInstanceParameter * +sharedParameter *

atpVariation Tags: atpVariation,atpSplitable

vh.latestBindingTime = atpVariation Tags:
vh.latestBindingTime = atpVariation,atpSplitable
preCompileTime
preCompileTime

+staticMemory
AutosarDataPrototype
SwcInternalBehavior
VariableDataPrototype 0..* atpVariation,atpSplitable

+implicitInterRunnableVariable

* atpVariation,atpSplitable

+explicitInterRunnableVariable

* atpVariation,atpSplitable

+arTypedPerInstanceMemory

* atpVariation,atpSplitable

atpVariation Tags:
vh.latestBindingTime =
atpVariation Tags: preCompileTime
atpVariation,atpSplitable
vh.latestBindingTime = atpVariation,atpSplitable
preCompileTime atpVariation,atpSplitable
atpVariation,atpSplitable

+perInstanceMemory * +portAPIOption 0..* +runnable 0..* +event *

AtpStructureElement AtpStructureElement AbstractEvent

PortAPIOption
Identifiable ExecutableEntity AtpStructureElement
PerInstanceMemory RunnableEntity RTEEvent

Figure 4.4: Software-component internal behavior

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RunnableEntitys (also abbreviated simply as Runnable) are the smallest code frag-
ments that are provided by AUTOSAR software-components and those basic software
modules that implement AUTOSAR Interfaces. They are represented by the meta-
class RunnableEntity, see Figure 4.5.
InternalBehavior
SwcInternalBehavior::SwcInternalBehavior

+ handleTerminationAndRestart :HandleTerminationAndRestartEnum
+ supportsMultipleInstantiation :Boolean

atpVariation,atpSplitable atpVariation Tags:

vh.latestBindingTime =
+runnable 0..* preCompileTime atpVariation,atpSplitable

AtpStructureElement
ExecutableEntity +event *

SwcInternalBehavior::RunnableEntity AbstractEvent
+startOnEvent AtpStructureElement
+ canBeInvokedConcurrently :Boolean
RTEEvents::RTEEvent
+ symbol :CIdentifier 0..1

+trigger 1

Identifiable
+waitPoint RTEEvents::WaitPoint
* + timeout :TimeValue

Figure 4.5: Software-component runnable entity, wait points and RTE Events

In general, software components are composed of multiple RunnableEntitys in or-

der to accomplish servers, receivers, feedback, etc.
[SWS_Rte_02202] d The RTE shall support multiple RunnableEntitys in AUTOSAR
software-components. c(SRS_Rte_00031)
RunnableEntitys are executed in the context of an OS task, their execution is
triggered by RTEEvents. Section 4.2.2.3 gives a more detailed description of the
concept of RunnableEntitys, Section 4.2.2.6 discusses the problem of mapping
RunnableEntitys to OS tasks. RTEEvents and the activation of RunnableEn-
titys by RTEEvents is treated in Section 4.2.2.4.
[SWS_Rte_02203] d The RTE shall trigger the execution of RunnableEntitys in
accordance with the connected RTEEvent. c(SRS_Rte_00072)
[SWS_Rte_02204] d The RTE Generator shall reject configurations where an RTE-
Event instance which can start a RunnableEntity is not mapped to an OS task.
The only exceptions are RunnableEntitys that are invoked by a direct function call.
c(SRS_Rte_00049, SRS_Rte_00018)

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[SWS_Rte_07347] d The RTE Generator shall reject configurations where

RunnableEntitys of a SW-C are mapped to tasks of different partitions. c
(SRS_Rte_00036, SRS_Rte_00018)
[SWS_Rte_02207] d The RTE shall respect the configured execution order of
RunnableEntitys within one OS task. c(SRS_Rte_00070)
[SWS_Rte_08768] d The RTE generator shall reject configuration where the scope
of a VariableAccess is violated by the system and/or ECU configuration. c
(SRS_Rte_00018)
[SWS_Rte_CONSTR_09081] Mapping to partition vs the value of VariableAc-
cess.scope d For every connection between SwComponentPrototypes mapped to
different partitions the value of VariableAccess.scope shall not be set to Vari-
ableAccessScopeEnum.communicationIntraPartition. c()
InternalBehavior
SwcInternalBehavior::SwcInternalBehavior

+ handleTerminationAndRestart :HandleTerminationAndRestartEnum
+ supportsMultipleInstantiation :Boolean

atpVariation,atpSplitable atpVariation Tags:

vh.latestBindingTime =
+runnable 0..* preCompileTime
AtpStructureElement AbstractAccessPoint
ExecutableEntity +parameterAccess AtpStructureElement
SwcInternalBehavior::RunnableEntity atpVariation,atpSplitable Identifiable
0..*
DataElements::ParameterAccess
+ canBeInvokedConcurrently :Boolean
+ symbol :CIdentifier atpVariation Tags:
vh.latestBindingTime =
preCompileTime

AbstractAccessPoint
+dataSendPoint AtpStructureElement
atpVariation,atpSplitable 0..* Identifiable
DataElements::VariableAccess
+dataReceivePointByArgument
+ scope :VariableAccessScopeEnum [0..1]
atpVariation,atpSplitable 0..*

+dataReceivePointByValue

atpVariation,atpSplitable 0..*

+dataReadAccess

atpVariation,atpSplitable 0..*

+dataWriteAccess

atpVariation,atpSplitable 0..*

+readLocalVariable

atpVariation 0..*

+writtenLocalVariable

atpVariation 0..*

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

Figure 4.6: Software-component runnable entity and data accesses

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InternalBehavior
SwcInternalBehavior::SwcInternalBehavior

+ handleTerminationAndRestart :HandleTerminationAndRestartEnum
+ supportsMultipleInstantiation :Boolean

atpVariation,atpSplitable atpVariation Tags:

vh.latestBindingTime =
+runnable 0..* preCompileTime
AtpStructureElement AbstractAccessPoint
ExecutableEntity AtpStructureElement
SwcInternalBehavior::RunnableEntity +runnable +serverCallPoint Identifiable

+ canBeInvokedConcurrently :Boolean ServerCall::ServerCallPoint

atpVariation,atpSplitable *
+ symbol :CIdentifier + timeout :TimeValue

AbstractAccessPoint
+asynchronousServerCallResultPoint AtpStructureElement
atpVariation,atpSplitable Identifiable
+runnable 0..* ServerCall::AsynchronousServerCallResultPoint

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

Trigger::ExternalTriggeringPoint
+externalTriggeringPoint

atpVariation,atpSplitable 0..*

AbstractAccessPoint
+internalTriggeringPoint AtpStructureElement
Identifiable
atpVariation,atpSplitable 0..* Trigger::InternalTriggeringPoint

+ swImplPolicy :SwImplPolicyEnum [0..1]

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

AbstractAccessPoint
+runnable +modeSwitchPoint AtpStructureElement
Identifiable
atpVariation,atpSplitable * ModeDeclarationGroup::ModeSwitchPoint

ModeDeclarationGroup::ModeAccessPoint
+modeAccessPoint

atpVariation,atpSplitable *

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

Figure 4.7: Software-component runnable entity and server invocation, trigger, and
mode switches

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With the information from SwcInternalBehavior a part of the setup of the AU-
TOSAR software-component within the RTE and the OS can already be configured.
Furthermore, the information (description) of the structure (ports, interfaces) and the
internal behavior of an AUTOSAR software component are sufficient for the RTE Con-
tract Phase.
However, some detailed information is still missing and this is part of the Implementa-
tion description.

4.1.3.4 Implementation

In the Implementation description an actual implementation of an AUTOSAR software-

component is described including the memory consumption (see Figure 4.8).
ARElement
Implementation

atpSplitable

+resourceConsumption 1

Identifiable
ResourceConsumption

atpVariation,atpSplitable
atpVariation Tags:
Identifiable +stackUsage 0..* vh.latestBindingTime
= preCompileTime
ExecutableEntity Identifiable atpVariation,atpSplitable
+executableEntity
StackUsage

0..1 A
atpVariation,atpSplitable

atpVariation,atpSplitable

+executionTime 0..*

Identifiable
+executableEntity
ExecutionTime
0..1 +memorySection 0..* +heapUsage 0..*
Identifiable Identifiable
+executableEntity MemorySection HeapUsage

0..*

Figure 4.8: Software-component resource consumption

Note that the information from the Implementation part are only required for the RTE
Generation Phase, if at all.

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4.1.4 Instantiation

4.1.4.1 Scope and background

Generally spoken, the term instantiation refers to the process of deriving specific in-
stances from a model or template. But, this process can be accomplished on different
levels of abstraction. Therefore, the instance of the one level can be the model for the
next.
With respect to AUTOSAR four modeling levels are distinguished. They are referred to
as the levels M 3 to M 0.
The level M 3 describes the concepts used to derive an AUTOSAR meta model of level
M 2. This meta model at level M 2 defines a language in order to be able to describe
specific attributes of a model at level M 1, e.g., to be able to describe an specific type
of an AUTOSAR software component. E.g., one part of the AUTOSAR meta model is
called Software Component Template or SW-C-T for short and specified in [2]. It is
discussed more detailed in section 4.1.3.
At level M 1 engineers will use the defined language in order to design components or
interfaces or compositions, say to describe an specific type of a LightManager. Hereby,
e.g., the descriptions of the (atomic) software components will also contain an internal
behavior as well as an implementation part as mentioned in section 4.1.3.
Those descriptions are input for the RTE Generator in the so-called Contract Phase
(see section 3.1.1). Out of this information specific APIs (in a programming language)
to access ports and interfaces will be generated.
Software components generally consist of a set of Runnable Entities. They can now
specifically be described in a programming language which can be refered to as im-
plementation. As one can see in section 4.1.3 this implementation then corresponds
exactly to one implementation description as well as to one internal behavior descrip-
tion.
M 0 refers to a specific running instance on a specific car.
Objects derived from those specified component types can only be executed in a spe-
cific run time environment (on a specific target). The objects embody the real and
running implementation and shall therefore be referred to as software component in-
stances (on modeling level M 0). E.g., there could be two component instances derived
from the same component type LightManager on a specific light controller ECU each
responsible for different lights. Making instances means that it should be possible to
distinguish them even though the objects are descended from the same model.
With respect to this more narrative description the RTE as the run time environment
shall enable the process of instantiation. Thereby the term instantiation throughout
the document shall refer to the process of deriving and providing explicit particular
descriptions of all occuring instances of all types. Therefore, this section will address
the problems which can arise out of the instantiation process and will specify the needs
for AUTOSAR components and the AUTOSAR RTE respectively.

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4.1.4.2 Concepts of instantiation

Regardless of the fact that the (aforementioned) instantiation of AUTOSAR software

components can be generally achieved on a per-system basis, the RTE Generator
restricts its view to a per-ECU customization (see [SWS_Rte_05000]).
Generally, there are two different kinds of instantiations possible:
single instantiation which refers to the case where only one object or AUTOSAR
software component instance will be derived out of the AUTOSAR software com-
ponent description
multiple instantiation which refers to the case where multiple objects or AU-
TOSAR software component instances will be derived out of the AUTOSAR soft-
ware component description
[SWS_Rte_02001] d The RTE Generator shall be able to instantiate one or more AU-
TOSAR software component instances out of a single AUTOSAR software component
description. c(SRS_Rte_00011)
[SWS_Rte_02008] d The RTE Generator shall evaluate the attribute supportsMultiple-
Instantiation of the SwcInternalBehavior of an AUTOSAR software component descrip-
tion. c(SRS_Rte_00011)
[SWS_Rte_02009] d The RTE Generator shall reject configurations where multiple
instantiation is required, but the value of the attribute supportsMultipleInstantiation of
the SwcInternalBehavior of an AUTOSAR software component description is set to
FALSE. c(SRS_Rte_00011, SRS_Rte_00018)

4.1.4.3 Single instantiation

Single instantiation refers to the easiest case of instantiation.

To be instantiated merely means that the code and the corresponding data of a particu-
lar RunnableEntity are embedded in a runtime context. In general, this is achieved
by the context of an OS task (see example 4.1).

Example 4.1

Runnable entity R1 called out of a task context:

1 TASK(Task1){
2 ...
3 R1();
4 ...
5 }

Since the single instance of the software component is unambigous per se no addi-
tional concepts have to be added.

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4.1.4.4 Multiple instantiation

[SWS_Rte_02002] d Multiple objects instantiated from a single AUTOSAR software

component (type) shall be identifiable without ambiguity. c(SRS_Rte_00011)
There are two principle ways to achieve this goal
by code duplication (of runnable entities)
by code sharing (of reentrant runnable entities)
For now it was decided to solely concentrate on code sharing and not to support code
duplication.
[SWS_Rte_03015] d The RTE only supports multiple objects instantiated from a sin-
gle AUTOSAR software component by code sharing, the RTE doesnt support code
duplication. c(SRS_Rte_00011, SRS_Rte_00012)
Multiple instances can share the same code, if the code is reentrant. For a multi core
controller, the possibility to share code between the cores depends on the hardware.
Example 4.2 is similar to the example 4.1, but for a software-component that sup-
port multiple instantiations, and where two instances have their R1 RunnableEntity
mapped to the same task.

Example 4.2

Runnable entity R1 called for two instances out of the same task context:
1 TASK(Task1){
2 ...
3 R1(instance1);
4 R1(instance2);
5 ...
6 }

The same code for R1 is shared by the different instances.

4.1.4.4.1 Reentrant code

In general, side effects can appear if the same code entity is invoked by different
threads of execution running, namely tasks. This holds particularly true, if the invoked
code entity inherits a state or memory by the means of static variables which are vis-
ible to all instances. That would mean that all instances are coupled by those static
variables.
Thus, they affect each other. This would lead to data consistency problems on one
hand. On the other and that is even more important it would introduce a new
communication mechanism to AUTOSAR and this is forbidden. AUTOSAR software
components can only communicate via ports.

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To be complete, it shall be noted that a calling code entity also inherits the reentrancy
problems of its callee. This holds especially true in case of recursive calls.

4.1.4.4.2 Unambiguous object identification

[SWS_Rte_02015] d The instantiated AUTOSAR software component objects shall be

unambiguously identifiable by an instance handle, if multiple instantiation by sharing
code is required. c(SRS_Rte_00011, SRS_Rte_00012)

4.1.4.4.3 Multiple instantiation and Per-instance memory

An AUTOSAR SW-C can define internal memory only accessible by a SW-C instance
itself. This concept is called PerInstanceMemory. The memory can only be accessed
by the runnable entities of this particular instance. That means in turn, other instances
dont have the possibility to access this memory.
PerInstanceMemory API principles are explained in Section 5.2.5.
The API for PerInstanceMemory is specified in Section 5.6.15.

4.1.5 RTE and AUTOSAR Services

According to the AUTOSAR glossary [11] an AUTOSAR service is a logical entity of the
Basic Software offering general functionality to be used by various AUTOSAR software
components. The functionality is accessed via standardized AUTOSAR interfaces.
Therefore, AUTOSAR services provide standardized AUTOSAR Interfaces: ports
typed by standardized PortInterfaces.
When connecting AUTOSAR service ports to ports of AUTOSAR software components
the RTE maps standard RTE API calls to the symbols defined in the RTE input (i.e.
XML) for the AUTOSAR service runnables of the BSW. The key technique to distin-
guish ECU dependent identifiers for the AUTOSAR services is called port-defined
argument values, which is described in Section 4.3.2.4. Currently port-defined argu-
ment values are only supported for client-server communication. It is not possible to
use a pre-defined symbol for sending or receiving data.
The RTE does not pass an instance handle to the C-based API of AUTOSAR services
since the latter are single-instantiatable (see [SWS_Rte_03806]).
As displayed on figure 4.2, there can be direct interactions between the RTE and some
Basic Software Modules. This is the case of the Operating System, the AUTOSAR
Communication, and the NVRAM Manager.

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4.1.6 RTE and ECU Abstraction

The ECU Abstraction provides an interface to physical values for AUTOSAR software
components. It abstracts the physical origin of signals (their pathes to the ECU hard-
ware ports) and normalizes the signals with respect to their physical appearance (like
specific values of current or voltage).
See the AUTOSAR ECU architecture in figure 4.2. From an architectural point of view
the ECU Abstraction is part of the Basic Software layer and offers AUTOSAR interfaces
to AUTOSAR software components.
Seen from the perspective of an RTE, regular AUTOSAR ports are connected. With-
out any restrictions all communication paradigms specified by the AUTOSAR Virtual
Functional Bus (VFB) shall be applicable to the ports, interfaces and connections
sender-receiver just as well as client-server mechanisms.
However, ports of the ECU Abstraction shall always only be connected to ports of
specific AUTOSAR software components: sensor or actuator software components. In
this sense they are tightly coupled to a particular ECU Abstraction.
Furthermore, it must not be possible (by an RTE) to connect AUTOSAR ports of the
ECU Abstraction to AUTOSAR ports of any AUTOSAR component located on a remote
ECU (see [SWS_Rte_02051].
This means, e.g., that sensor-related signals coming from the ECU Abstraction are
always received by an AUTOSAR sensor component located on the same ECU. The
AUTOSAR sensor component will then process the received signal and deploy it to
other AUTOSAR components regardless of whether they are located on the same or
any remote ECU. This applies to actuator-related signals accordingly, however, the
opposite way around.
[SWS_Rte_02050] d The RTE Generator shall generate a communication path be-
tween connected ports of AUTOSAR sensor or actuator software components and the
ECU Abstraction in the exact same manner like for connected ports of AUTOSAR soft-
ware components. c()
[SWS_Rte_02051] d The RTE Generator shall reject configurations which require a
communication path from a AUTOSAR software component to an ECU Abstraction
located on a remote ECU. c(SRS_Rte_00062, SRS_Rte_00018)
Further information about the ECU Abstraction can be found in the corresponding
specification document [17].

4.1.7 RTE and Complex Device Driver

A Complex Device Driver has an AUTOSAR Interface, therefore the RTE can deal with
the communication on the Complex Device Drivers ports. The Complex Device Driver
is allowed to have code entities that are not under control of the RTE but yet still may
use the RTE API (e.g. ISR2, BSW main processing functions).

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4.1.8 Basic Software Scheduler and Basic Software Modules

4.1.8.1 Description of a Basic Software Module

The description of a Basic Software Module is divided into the sections

interfaces
internal behavior
implementation
For further details see document [9].

4.1.8.2 Basic Software Interfaces

The interface of a Basic Software Module is described with Basic Software Module
Entries (BswModuleEntry ). For the functionality of the Basic Software Scheduler only
BswModuleEntry s from BswCallType SCHEDULED are relevant. Nevertheless for op-
timization purpose the analysis of the full call tree might be required which requires the
consideration of all BswModuleEntry s

4.1.8.3 Basic Software Internal Behavior

The Basic Software Internal Behavior specifies the behavior of a BSW module or a
BSW cluster w.r.t. the code entities visible by the BSW Scheduler. For the Basic Soft-
ware Scheduler mainly Basic Software Schedulable Entities (BswSchedulableEntity s)
are relevant. These are Basic Software Module Entities, which are designed for control
by the Basic Software Scheduler. Basic Software Schedulable Entities are implement-
ing main processing functions. Furthermore all Basic Software Schedulable Entities
are allowed to use exclusive areas and for call tree analysis all Basic Software Module
Entities are relevant.
[SWS_Rte_07514] d The Basic Software Scheduler shall support multiple Basic Soft-
ware Module Entities in AUTOSAR Basic Software Modules. c(SRS_Rte_00211,
SRS_Rte_00213, SRS_Rte_00216)
[SWS_Rte_07515] d The Basic Software Scheduler shall trigger the execution of
Schedulable Entity s in accordance with the connected BswEvent. c(SRS_Rte_00072)
[SWS_Rte_07516] d The RTE Generator shall reject configurations where an Bsw-
Event which can start a Schedulable Entity is not mapped to an OS task. The excep-
tions are BswEvent that are implemented by a direct function call. c(SRS_Rte_00049,
SRS_Rte_00018)
[SWS_Rte_07517] d The RTE Generator shall respect the configured execution order
of Schedulable Entities within one OS task. c(SRS_Rte_00219)

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[SWS_Rte_07518] d The RTE shall support the execution sequences of Runnable

Entities and Schedulable Entities within the same OS task in an arbitrarily configurable
order. c(SRS_Rte_00219)

4.1.8.4 Basic Software Implementation

The implementation defines further details of the implantation of the Basic Software
Module. The vendorApiInfix attribute is of particular interest, because it defines the
name space extension for multiple instances of the same basic software module. Fur-
ther on the category of the codeDescriptor specifies if the Basic Software Module
is delivered as source code or as object.

4.1.8.5 Multiple Instances of Basic Software Modules

In difference to the multiple instantiation concept of software components, where the

same component code is used for all component instances, basic software modules are
multiple instantiated by creation of own code per instance in a different name space.
The attribute vendorApiInfix allows to define name expansions required for global sym-
bols.

4.1.8.6 AUTOSAR Services / ECU Abstraction / Complex Device Drivers

AUTOSAR Services, ECU Abstraction and Complex Device Drivers are hybrid of AU-
TOSAR software-component and Basic Software Module. These kinds of modules
might use AUTOSAR Interfaces to communicate via RTE as well as C-API to directly
access other Basic Software Modules. Caused by the structure of the AUTOSAR Meta
Model some entities of the C implementation have to be described twice; on the one
hand by the means of the Software Component Template [2] and on the other hand by
the means of the Basic Software Module Description Template [9]. Further on the du-
alism of port based communication between software component and non-port based
communication between Basic Software Modules requires in some cases the coordi-
nation and synchronization between both principles. The information about elements
belonging together is provided by the so called SwcBswMapping.

4.1.8.6.1 RunnableEntity / BswModuleEntity mapping

A Runnable Entity which is mapped to a Basic Software Module Entity has to be treated
as one common entity. This means it describes an entity which can use the features of
a Runnable Entity and a Basic Software Module Entity as well. For instance it supports
to use the port based API as well as Basic Software Scheduler API in one C function.

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4.1.8.6.2 Synchronized ModeDeclarationGroupPrototype

Two synchronized ModeDeclarationGroupPrototype are resulting in the implementation

of one common mode machine instance. Consequently the call of the belonging
Rte_Switch API and the SchM_Switch API are having the same effect. For opti-
mization purpose the Rte_Switch API might just refer to the SchM_Switch API.

4.1.8.6.3 Synchronized Trigger

Two synchronized Trigger are behaving like one common Trigger. Consequently the
call of the belonging Rte_Trigger API and the SchM_Trigger API are having the
same effect. For optimization purpose the Rte_Trigger API might just refer to the
SchM_Trigger API.

4.2 RTE and Basic Software Scheduler Implementation Aspects

4.2.1 Scope

This section describes some specific implementation aspects of an AUTOSAR RTE

and the Basic Software Scheduler. It will mainly address
the mapping of logical concepts (e.g., Runnable Entities, BSW Schedulable Enti-
ties) to technical architectures (namely, the AUTOSAR OS)
the decoupling of pending interrupts (in the Basic Software) and the notification
of AUTOSAR software components
data consistency problems to be solved by the RTE
Therefore this section will also refer to aspects of the interaction of the AUTOSAR RTE
and Basic Software Scheduler and the two modules of the AUTOSAR Basic Software
with standardized interfaces (see Figure 4.9):
the module AUTOSAR Operating System [18, 4]
the module AUTOSAR COM [19, 3]

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Figure 4.9: Scope of the section on Basic Software modules

Having a standardized interface means first that the modules do not provide or request
services for/of the AUTOSAR software components located above the RTE. They do
not have ports and therefore cannot be connected to the aforementioned AUTOSAR
software components. AUTOSAR OS as well as AUTOSAR COM are simply invisible
for them.
Secondly AUTOSAR OS and AUTOSAR COM are used by the RTE in order to achieve
the functionality requested by the AUTOSAR software components. The AUTOSAR
COM module is used by the RTE to route a signal over ECU boundaries, but this
mechanism is hidden to the sending as well as to the receiving AUTOSAR software
component. The AUTOSAR OS module is used for two main purposes. First, OS is
used by the RTE to route a signal over core and partition boundaries. Secondly, the
AUTOSAR OS module is used by the RTE in order to properly schedule the single
Runnables in the sense that the RTE Generator generates Task-bodies which contain
then the calls to appropriate Runnables.
In this sense the RTE shall also use the available means to convert interrupts to notifi-
cations in a task context or to guarantee data consistency.

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With respect to this view, the RTE is thirdly not a generic abstraction layer for AU-
TOSAR OS and AUTOSAR COM. It is generated for a specific ECU and offers the
same interface to the AUTOSAR Software Components as the VFB. It implements the
functionality of the VFB using modules of the Basic Software, including a specific im-
plementation of AUTOSAR OS and AUTOSAR COM.
The Basic Software Scheduler offers services to integrate Basic Software Modules for
all modules of all layers. Hence, the Basic Software Scheduler provides the following
functions:
embed Basic Software Modules implementations into the AUTOSAR OS context
trigger BswSchedulableEntitys of the Basic Software Modules
apply data consistency mechanisms for the Basic Software Modules
The integrators task is to apply given means (of the AUTOSAR OS) in order to assem-
ble BSW modules in a well-defined and efficient manner in a project specific context.
This also means that the BSW Scheduler only uses the AUTOSAR OS. It is not in the
least a competing entity for the AUTOSAR OS scheduler.
[SWS_Rte_02250] d The RTE shall only use the AUTOSAR OS, AUTOSAR COM, AU-
TOSAR Efficient COM for Large Data, AUTOSAR Transformer and AUTOSAR NVRAM
Manager in order to provide the RTE functionality to the AUTOSAR components. c
(SRS_Rte_00020)
[SWS_Rte_07519] d The Basic Software Scheduler shall only use the AUTOSAR OS
in order to provide the Basic Software Scheduler functionality to the Basic Software
Modules. c()
[SWS_Rte_06200] d The RTE Generator shall construct task bodies for those tasks
which contain RunnableEntitys. c(SRS_Rte_00049)
[SWS_Rte_06201] d The RTE Generator shall construct task bodies for those tasks
which contain Basic Software Schedulable Entities. c(SRS_Rte_00049)
The information for the construction of task bodies has to be given by the ECU Con-
figuration description. The mapping of Runnable Entities to tasks is given as an input
by the ECU Configuration description. The RTE Generator does not decide on the
mapping of RunnableEntitys to tasks.
[SWS_Rte_02254] d The RTE Generator shall reject configurations where input infor-
mation is missing regarding the mapping of BswEvents to OS tasks and RTEEvents
(which trigger runnables) to OS tasks. c(SRS_Rte_00049, SRS_Rte_00018)
Note: Not in all cases an event to task mapping is required. For example runnables
which shall be called via direct function call need no event to task mapping.
[SWS_Rte_08417] d The RTE Generator shall reject configurations where input in-
formation is missing regarding the construction of tasks bodies. c(SRS_Rte_00049,
SRS_Rte_00018)

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4.2.2 OS

This section describes the interaction between the RTE + Basic Software Scheduler
and the AUTOSAR OS. The interaction is realized via the standardized interface of the
OS - the AUTOSAR OS API. See Figure 4.9.
The OS is statically configured by the ECU Configuration. The RTE generator however
may be allowed to create tasks and other OS objects, which are necessary for the run-
time environment (see [SWS_Rte_05150]). The mapping of RunnableEntitys and
BSW Schedulable Entities to OS tasks is not the job of the RTE generator. This map-
ping has to be done in a configuration step before, in the RTE-Configuration phase. The
RTE generator is responsible for the generation of OS task bodies, which contain the
calls for the RunnableEntitys and BSW Schedulable Entities. The RunnableEn-
titys and BSW Schedulable Entities themselves are OS independent and are not
allowed to use OS service calls. The RTE and Basic Software Scheduler have to en-
capsulate such calls via the standardized RTE API respectively Basic Software Sched-
uler API.

4.2.2.1 OS Objects

Tasks
The RTE generator has to create the task bodies, which contain the calls of the
RunnableEntitys and BswSchedulableEntitys. Note that the term task
body is used here to describe a piece of code, while the term task describes a
configuration object of the OS.
The RTE and Basic Software Scheduler controls the task activation/resumption
either directly by calling OS services like SetEvent() or ActivateTask() or
indirectly by initializing OS alarms or starting Schedule-Tables for time-based ac-
tivation of RunnableEntitys. If the task terminates, the generated taskbody
also contains the calls of TerminateTask() or ChainTask().
The RTE generator does not create tasks. The mapping of RunnableEntitys
and BswSchedulableEntitys to tasks is the input to the RTE generator and
is therefore part of the RTE Configuration.
The RTE configurator has to allocate the necessary tasks in the OS configuration.
OS applications
AUTOSAR OS has in R4.0 a new feature called Inter-OS-Application Commu-
nication (IOC). IOC is generated by the OS based on the configuration partially
generated by the RTE. The appropriate objects (OS-Applications) are generated
by the OS, and are used by RTE to for task/runnable mapping.
Events

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The RTE and Basic Software Scheduler may use OS Events for the implementa-
tion of the abstract RTEEvents and BswEvents.
The RTE and Basic Software Scheduler therefore may call the OS service func-
tions SetEvent(), WaitEvent(), GetEvent() and ClearEvent().
The used OS Events are part of the input information of the RTE generator.
The RTE configurator has to allocate the necessary events in the OS configura-
tion.
Resources
The RTE and Basic Software Scheduler may use OS Resources (standard or
internal) e.g. to implement data consistency mechanisms.
The RTE and Basic Software Scheduler may call the OS services GetRe-
source() and ReleaseResource().
The used Resources are part of the input information of the RTE generator.
The RTE configurator has to allocate the necessary resources (all types of re-
sources) in the OS configuration.
Interrupt Processing
An alternative mechanism to get consistent data access is disabling/enabling of
interrupts. The AUTOSAR OS provides different service functions to handle in-
terrupt enabling/disabling. The RTE may use these functions and must not use
compiler/processor dependent functions for the same purpose.
Alarms
The RTE may use Alarms for timeout monitoring of asynchronous client/server
calls. The RTE is responsible for Timeout handling.
The RTE and Basic Software Scheduler may setup cyclic alarms for periodic trig-
gering of RunnableEntitys and BswSchedulableEntitys (RunnableEn-
tity activation via RTEEvent TimingEvent respectively BswSchedula-
bleEntity activation via BswEvent BswTimingEvent )
The RTE and Basic Software Scheduler therefore may call the OS service func-
tions GetAlarmBase(), GetAlarm(), SetRelAlarm(), SetAbsAlarm()
and CancelAlarm().
The used Alarms are part of the input information of the RTE generator.
The RTE configurator has to allocate the necessary alarms in the OS configura-
tion.
Schedule Tables
The RTE and Basic Software Scheduler may setup schedule tables for cyclic task
activation (e.g. RunnableEntity activation via RTEEvent TimingEvent)

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The used schedule tables are part of the input information of the RTE generator.
The RTE configurator has to allocate the necessary schedule tables in the OS
configuration.
Common OS features
Depending on the global scheduling strategy of the OS, the RTE can make decisions
about the necessary data consistency mechanisms. E.g. in an ECU, where all tasks
are non-preemptive - and as the result also the global scheduling strategy of the com-
plete ECU is non-preemptive - the RTE may optimize the generated code regarding
the mechanisms for data consistency.
Hook functions
The AUTOSAR OS Specification defines hook functions as follows:
A Hook function is implemented by the user and invoked by the operating system in
the case of certain incidents. In order to react to these on system or application level,
there are two kinds of hook functions.
application-specific: Hook functions within the scope of an individual OS Appli-
cation.
system-specific: Hook functions within the scope of the complete ECU (in gen-
eral provided by the integrator).
If no memory protection is used (scalability classes SCC1 and SCC2) only the system-
specific hook functions are available.
In the SRS the requirements to implement the system-specific hook functions were
rejected [RTE00001], [RTE00101], [RTE00102] and [RTE00105], as well as the
application-specific hook functions [RTE00198]. The reason for the rejection is the
system (ECU) global scope of those functions. The RTE is not the only user of those
functions. Other BSW modules might have requirements to use hook functions as well.
This is the reason why the RTE is not able to generate these functions without the
necessary information of the BSW configuration.
It is intended that the implementation of the hook functions is done by the system
integrator and NOT by the RTE generator.

4.2.2.2 Basic Software Schedulable Entities

BswSchedulableEntitys are Basic Software Module Entities, which are designed

for control by the BSW Scheduler. BswSchedulableEntitys are implementing main
processing functions. The configuration of the Basic Software Scheduler allows map-
ping of BswSchedulableEntitys to both types; basic tasks and extended tasks.
BswSchedulableEntitys not mapped to a RunnableEntity are not allowed
to enter a wait state. Therefore such BswSchedulableEntitys are compara-

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ble to RunnableEntitys of category 1. BswSchedulableEntitys mapped to

a RunnableEntity can enter wait states by usage of the RTE API and such
BswSchedulableEntitys have to be treated according the classification of the
mapped RunnableEntity. The mapping of BswSchedulableEntitys to a
RunnableEntitys is typically used for AUTOSAR Services, ECU Abstraction and
Complex Device Drivers. See sections 4.1.8.6.

4.2.2.3 Runnable Entities

The following section describes the RunnableEntitys, their categories and their
task-mapping aspects. The prototypes of the functions implementing RunnableEn-
titys are described in section 5.7
Runnable Entities are the schedulable parts of SW-Cs. Runnable Entities are either
mapped to tasks or activated by direct function calls in the context of other Rte APIs,
for instance server runnables that are invoked via direct function calls.
The mapping must be described in the ECU Configuration Description. This configura-
tion - or just the RTE relevant parts of it - is the input of the RTE generator.
All RunnableEntitys are activated by the RTE as a result of an RTEEvent. Possi-
ble activation events are described in the meta-model by using RTEEvents (see sec-
tion 4.2.2.4).
If no RTEEvent specifies a particular RunnableEntity in the role startOn-
Event then the RunnableEntity is never activated by the RTE. Please note that
a RunnableEntity may be mapped to a BswSchedulableEntity as described in
section 4.2.2.2 which may lead to activations by the BSW Scheduler.
The categories of RunnableEntitys are described in [2].
RunnableEntitys and BswSchedulableEntitys are generalized by Exe-
cutableEntitys.

4.2.2.4 RTE Events

The meta model describes the following RTE events:

Abbreviation Name
T TimingEvent
BG BackgroundEvent
DR DataReceivedEvent (S/R Communication only)
DRE DataReceiveErrorEvent (S/R Communication only)
DSC DataSendCompletedEvent (explicit S/R Communication only)
DWC DataWriteCompletedEvent (implicit S/R Communication only)
OI OperationInvokedEvent (C/S Communication only)
ASCR AsynchronousServerCallReturnsEvent (C/S communication only)
MS SwcModeSwitchEvent

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MSA ModeSwitchedAckEvent
MME SwcModeManagerErrorEvent
ETO ExternalTriggerOccurredEvent
ITO InternalTriggerOccurredEvent
I InitEvent
THE TransformerHardErrorEvent

Table 4.1: Abbreviations of RTEEvents

According to the meta model each kind of RTEEvent can either

ACT activate a RunnableEntity, or
WUP wakeup a RunnableEntity at its WaitPoints
The meta model makes no restrictions which kind of RTEEvents are referred by Wait-
Points. As a consequence RTE API functions would be necessary to set up the
WaitPoints for each kind of RTEEvent.
Nevertheless in some cases it seems to make no sense to implement all possible com-
binations of the general meta model. E.g. setting up a WaitPoint, which should be
resolved by a cyclic TimingEvent . Therefore the RTE SWS defines some restric-
tions, which are also described in section A.
The meta model also allows, that the same RunnableEntity can be triggered by
several RTEEvents. For the current approach of the RTE and restrictions see sec-
tion 4.2.6.
T BG DR DRE DSC DWC OI ASCR
ACT x x x x x x x x
WUP x x x
MS MSA MME ETO ITO I THE
ACT x x x x x x x
WUP x

Table 4.2: activation of RunnableEntity depended on the kind of RTEEvent

The table 4.2 shows, that activation of RunnableEntity is possible for each kind of
RTEEvent. For RunnableEntity activation, no explicit RTE API in the to be activated
RunnableEntity is necessary. The RTE itself is responsible for the activation of the
RunnableEntity depending on the configuration in the SW-C Description.
If the RunnableEntity contains a WaitPoint, it can be resolved by the assigned
RTEEvent(s). Entering the WaitPoint requires an explicit call of a RTE API function.
The RTE (together with the OS) has to implement the WaitPoint inside this RTE API.
The following list shows which RTE API function has to be called to set up Wait-
Points.
DataReceivedEvent: Rte_Receive()
DataSendCompletedEvent: Rte_Feedback()

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ModeSwitchedAckEvent: Rte_SwitchAck()
AsynchronousServerCallReturnsEvent: Rte_Result()
[SWS_Rte_01292] d When a DataReceivedEvent references a RunnableEn-
tity and a required VariableDataPrototype and no WaitPoint references the
DataReceivedEvent, the RunnableEntity shall be activated when the data is re-
ceived. [SWS_Rte_01135]. c(SRS_Rte_00072)
Requirement [SWS_Rte_01292] merely affects when the runnable is activated
an API call should still be created, according to requirement [SWS_Rte_01288],
[SWS_Rte_01289], and [SWS_Rte_07395] as appropriate, to actually read the data.

4.2.2.5 BswEvents

The meta model describes the following BswEvents.

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AbstractEvent ExecutableEntity
BswBehavior::BswEvent +startsOnEvent BswBehavior::BswModuleEntity

BswBehavior:: BswBehavior::
BswOperationInvokedEvent BswCalledEntity

BswBehavior:: BswBehavior::
BswScheduleEvent BswSchedulableEntity

BswBehavior::BswTimingEvent

+ period :TimeValue

BswBehavior::BswBackgroundEvent

BswBehavior::BswExternalTriggerOccurredEvent

BswBehavior::BswInternalTriggerOccurredEvent

BswBehavior::BswModeSwitchEvent

+ activation :ModeActivationKind

BswBehavior::BswModeSwitchedAckEvent

BswBehavior::BswModeManagerErrorEvent

BswBehavior::BswDataReceivedEvent

BswBehavior::
BswAsynchronousServerCallReturnsEvent

Figure 4.10: Different kinds of BswEvents

Similar to RTEEvents the activation of Basic Software Schedulable Entities is possi-

ble for each kind of BswEvent. For of BswSchedulableEntitys activation, no ex-

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plicit Basic Software Scheduler API in the to be activated BswSchedulableEntity

is necessary. The Basic Software Scheduler itself is responsible for the activation of
the BswSchedulableEntity depending on the configuration in the Basic Software
Module Description. In difference to RTEEvents, none of the BswEvents support
WaitPoints. For more details see document [9].

4.2.2.6 Mapping of Runnable Entities and Basic Software Schedulable Entities

to tasks (informative)

One of the main requirements of the RTE generator is "Construction of task bod-
ies" [SRS_Rte_00049]. The necessary input information e.g. the mapping of
RunnableEntitys and BswSchedulableEntity to tasks must be provided by the
ECU configuration description.
The ECU configuration description (or an extract of it) is the input for the RTE Generator
(see Figure 3.4). It is also the purpose of this document to define the necessary input
information. Therefore the following scenarios may help to derive requirements for the
ECU Configuration Template as well as for the RTE-generator itself.
Note: The scenarios do not cover all possible combinations.
The RTE-Configurator uses parts of the ECU Configuration of other BSW Modules,
e.g. the mapping of RunnableEntitys to OsTasks. In this configuration process the
RTE-Configurator expects OS objects (e.g. Tasks, Events, Alarms...) which are used
in the generated RTE and Basic Software Scheduler.
Some figures for better understanding use the following conventions:

Figure 4.11: Element description

Note: The following examples are only showing RunnableEntitys. But taking the
categorization of BswSchedulableEntitys defined in section 4.2.2.2 into account,
the scenarios are applicable for BswSchedulableEntitys as well.
Note: The implementations described in this section are examples only and are pre-
sented for information only. The examples must not be viewed as specification of
implementation. The intention is to serve as examples of one possible implementation
and not as specification of the only permitted implementation.

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4.2.2.6.1 Scenario for mapping of RunnableEntitys to tasks

The different properties of RunnableEntitys with respect to data access and termi-
nation have to be taken into account when discussing possible scenarios of mapping
RunnableEntitys to tasks.
RunnableEntitys using VariableAccesses in the dataReadAccess or
dataWriteAccess roles (implicit read and send) have to terminate.
RunnableEntitys of category 1 can be mapped either to basic or extended
tasks. (see next subsection).
RunnableEntitys using at least one WaitPoint are of category 2.
RunnableEntitys of category 2 that contain WaitPoints will be typically
mapped to extended tasks.
RunnableEntitys that contain a SynchronousServerCallPoint generally
have to be mapped to extended tasks.
RunnableEntitys that contain a SynchronousServerCallPoint can be
mapped to basic tasks if no timeout monitoring is required and the server runn-
able is on the same partition.
RunnableEntitys that contain a SynchronousServerCallPoint can be
mapped to basic tasks if the server runnable is invoked directly and is itself of
category 1.
Note that the runnable to task mapping scenarios supported by a particular RTE im-
plementation might be restricted.

4.2.2.6.1.1 Scenario 1

Runnable entity category 1A: "runnable1"

Ports: only S/R with VariableAccesses in the dataReadAccess or
dataWriteAccess role
RTEEvents: TimingEvent
no sequence of RunnableEntitys specified
no VariableAccess in the dataSendPoint role
no WaitPoint
Possible mappings of "runnable1" to tasks:
Basic Task
If only one of those kinds of RunnableEntitys is mapped to a task (task contains only
one RunnableEntity), or if multiple RunnableEntitys with the same activation
period are mapped to the same task, a basic task can be used. In this case, the

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execution order of the RunnableEntitys within the task is necessary. In case the
RunnableEntitys have different activation periods, the RTE has to provide the glue-
code to guarantee the correct call cycle of each RunnableEntity.
The ECU Configuration-Template has to provide the sequence of RunnableEntitys
mapped to the same task, see RtePositionInTask.
Figure 4.12 shows the possible mappings of RunnableEntitys into a basic task. If
and only if a sequence order is specified, more than one RunnableEntity can be
mapped into a basic task.

Figure 4.12: Mapping of Category 1 RunnableEntitys to Basic Tasks

Extended Task
If more than one RunnableEntity is mapped to the same task and the special con-
dition (same activation period) does not fit, an extended task is used.
If an extended task is used, the entry points to the different RunnableEntitys might
be distinguished by evaluation of different OS events. In the scenario above, the differ-
ent activation periods may be provided by different OS alarms. The corresponding OS
events have to be handled inside the task body. Therefore the RTE-generator needs
for each task the number of assigned OS Events and their names.
The ECU Configuration has to provide the OS events assigned to the RTEEvents
triggering the RunnableEntitys that are mapped to an extended task, see RteUse-
dOsEventRef.
Figure 4.13 shows the possible mapping of the multiple RunnableEntitys of cate-
gory 1 into an Extended Task. Note: The Task does not terminate.

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Figure 4.13: Mapping of Category 1 RunnableEntitys to Extended Tasks

For both, basic tasks and extended tasks, the ECU Configuration must provide the
name of the task.
The ECU Configuration has to provide the name of the task, see OsTask.
The ECU Configuration has to provide the task type (BASIC or EXTENDED), which
can be determined from the presence or absence of OS Events associated with that
task, see OsTask.

4.2.2.6.1.2 Scenario 2

Runnable entity category 1B: "runnable2"

Ports: S/R with VariableAccesses in the dataSendPoint role.
RTEEvents: TimingEvent
no WaitPoint
Possible mappings of "runnable2" to tasks:
The following figure shows the different mappings:
One category 1B runnable
More than one category 1B runnable mapped to the same basic task with a spec-
ified sequence order
More than one category 1B runnable mapped into an extended task
The gluecode to realize the VariableAccessin the dataReadAccess and
dataWriteAccess roles respectively before entering the runnable and after exiting is
not necessary.

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Figure 4.14: Mapping of Category 1 RunnableEntitys using no VariableAccesses in

the dataReadAccess or dataWriteAccess role

4.2.2.6.1.3 Scenario 3

Runnable entity category 1A: "runnable3"

Ports: S/R with VariableAccesses in the dataReadAccess or
dataWriteAccess role
RTEEvents: Runnable is activated by a DataReceivedEvent
no VariableAccess in the dataSendPoint role
no WaitPoint
There is no difference between Scenario 1 and 3. Only the RTEEvent that activates
the RunnableEntity is different.

4.2.2.6.1.4 Scenario 4

Runnable entity category 2: "runnable4"

Ports: S/R with VariableAccesses in the dataReceivePointByValue or
dataReceivePointByArgument role and WaitPoint (blocking read)
RTEEvents: WaitPoint referencing a DataReceivedEvent
Runnable is activated by an arbitrary RTEEvent (e.g. by a TimingEvent). When
the RunnableEntity has entered the WaitPoint and the DataReceivedEvent
occurs, the RunnableEntity resumes execution.
The runnable has to be mapped to an extended task. Normally each category 2 runn-
able has to be mapped to its own task. Nevertheless it is not forbidden to map multiple
category 2 RunnableEntitys to the same task, though this might be restricted by an
RTE generator. Mapping multiple category 2 RunnableEntitys to the same task can
lead to big delay times if e.g. a WaitPoint is resolved by the incoming RTEEvent,
but the task is still waiting at a different WaitPoint.

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Figure 4.15: Mapping of Category 2 RunnableEntitys to Extended Tasks

4.2.2.6.1.5 Scenario 5

There are two RunnableEntitys implementing a client (category 2) and a server

for synchronous C/S communication and the timeout attribute of the ServerCall-
Point is 0.
On a single core, there are two ways to invoke a server synchronously:
Simple function call for intra-partition C/S communication if the canBeInvoked-
Concurrently attribute of the server runnable is set and if the server runnable
is of category 1. In that case the server runnable is executed in the same task
context (same stack) as the client runnable that has invoked the server. The client
runnable can be mapped to a basic task.
The server runnable is mapped to its own task. If the canBeInvokedConcur-
rently attribute is not set, the server runnable must be mapped to a task.
If the implementation of the synchronous server invocation does not use OS
events, the client runnable can be mapped to a basic task and the task of the
server runnable must have higher priority than the task of the client runnable.
Furthermore, the task to which the client runnable is mapped must be preempt-
able. This has to be checked by the RTE generator. Activation of the server
runnable can be done by ActivateTask() for a basic task or by SetEvent()
for an extended task. In both cases, the task to be activated must have higher
priority than the task of the client runnable to enforce a task switch (necessary,
because the server invocation is synchronous).

4.2.2.6.1.6 Scenario 6

There are two RunnableEntitys implementing a client (category 2) and a server for
synchronous C/S communication and the timeout attribute of the ServerCallPoint
is greater than 0.
There are again two ways to invoke a server synchronously:
Simple function call for intra-partition C/S communication if the canBeInvoked-
Concurrently attribute of the server runnable is set and the server is of cat-

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egory 1. In that case the server runnable is executed in the same task context
(same stack) as the client runnable that has invoked the server and no timeout
monitoring is performed (see [SWS_Rte_03768]). In this case the client runnable
can be mapped to a basic task.
The server runnable is mapped to its own task. If the canBeInvokedConcur-
rently attribute is not set, the server runnable must be mapped to a task.
If the implementation of the timeout monitoring uses OS events, the task of the
server runnable must have lower priority than the task of the client runnable and
the client runnable must be mapped to an extended task. Furthermore, both
tasks must be preemptable1 . This has to be checked by the RTE generator. The
notification that a timeout occurred is then notified to the client runnable by using
an OS Event. In order for the client runnable to immediately react to the timeout,
a task switch to the client task must be possible when the timeout occurs.

4.2.2.6.1.7 Scenario 7

Runnable entity category 2: "runnable7"

Ports: only C/S with AsynchronousServerCallPoint and WaitPoint
RTEEvents: AsynchronousServerCallReturnsEvent (C/S communication
only)
The mapping scenario for "runnable7", the client runnable that collects the result of the
asynchronous server invocation, is similar to Scenario 4.

4.2.2.7 Monitoring of runnable execution time

This section describes how the monitoring of RunnableEntity execution time can
be done.
The RTE doesnt directly support monitoring of RunnableEntitys execution time but
the AUTOSAR OS support for monitoring of OsTasks execution time can be used for
this purpose.
If execution time monitoring of a RunnableEntity is required a possible solution is
to map the RunnableEntity alone to an OsTask and to configure the OS to monitor
the execution time of the OsTask.
This solution can lead to dispatch to individual OsTasks RunnableEntitys that
should be initially mapped to the same OsTask because of for example:
1
Strictly speaking, this restriction is not necessary for the task to which the client runnable is mapped.
If OS events are used to implement the timeout monitoring and the notification that the server is finished,
the RTE API implementation generally uses the OS service WaitEvent, which is a point of reschedul-
ing.

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requirements on execution order of the RunnableEntitys and/or

requirements on evaluation order of the RTEEvents that activate the
RunnableEntitys and
constraints to have no preemption between the RunnableEntitys
In order to keep the control on the execution order of the RunnableEntitys, the eval-
uation order of the RTEEvents and the non-preemption between the RunnableEn-
titys when then RunnableEntitys are individually mapped to several OsTasks
for the purpose of monitoring, a possible solution is to replace the calls to the C-
functions of the RunnableEntitys by activations of the OsTasks to which the moni-
tored RunnableEntitys are mapped.

Figure 4.16: Inter task activation and mapping of runnable to individual task for monitor-
ing purpose

This behavior of the RTE can be configured with the attributes RteVirtual-
lyMappedToTaskRef of the RteEventToTaskMapping. RteVirtuallyMapped-
ToTaskRef references the OsTask in which the execution order of the RunnableEn-
titys and/or the evaluation order of the RTEEvents are controlled. RteMapped-
ToTaskRef references the individual OsTasks to which the RunnableEntitys are
mapped for the purpose of monitoring.
[SWS_Rte_07800] d The RTE Generator shall respect the configured virtual runn-
able to task mapping (RteVirtuallyMappedToTaskRef) in the RTE configuration.
c(SRS_Rte_00193)
Of course this solution requires that the task priorities and scheduling properties are
well configured in the OS to allow immediate preemption by the OsTasks to which the
monitored RunnableEntitys are mapped. A possible solution is:
Priority of the OsTask to which the RunnableEntity is mapped is higher than
the priority of the OsTask to which the RunnableEntity is virtually mapped
and

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the OsTask to which the RunnableEntity is virtually mapped have a full pre-
emptive scheduling or
the RTE call the OS service Schedule() just after activation of the OsTask to
which the RunnableEntity is mapped
Example 1: Without OsEvent
Description of the example:
RunnableEntity RE1 is activated by TimingEvent 100ms T1.
RunnableEntity RE2 is activated by TimingEvent 100ms T2.
RunnableEntity RE3 is activated by TimingEvent 100ms T3.
Execution order of the RunnableEntitys shall be R1, R2 then R3.
RE2 shall be monitored.
Possible RTE configuration:
RE1/T1 is mapped to OsTask TaskA with RtePositionInTask equal to 1.
RE2/T2 is mapped to OsTask TaskB but virtually mapped to TaskA with RtePosi-
tionInTask equal to 2.
RE3/T3 is mapped to OsTask TaskA with RtePositionInTask equal to 3.
Possible RTE implementation:
RTE starts cyclic OsAlarm with 100ms period.
This OsAlarm is configured to activate TaskA.
Non preemptive scheduling is configured for Task A.
TaskB priority = TaskA priority + 1
1 void TaskA(void)
2 {
3 RE1();
4 ActivateTask(TaskB);
5 Schedule();
6 RE3();
7 TerminateTask();
8 }
9
10 void TaskB(void)
11 {
12 RE2();
13 TerminateTask();
14 }

Example 2: With OsEvent

Description of the example:
RunnableEntity RE1 is activated by DataReceivedEvent DR1.
RunnableEntity RE2 is activated by DataReceivedEvent DR2.
RunnableEntity RE3 is activated by DataReceivedEvent DR3.
Evaluation order of the RTEEvents shall be DR1, DR2 then DR3.
All the runnables shall be monitored.
Possible RTE configuration:
RE1 is mapped to OsTask TaskB but virtually mapped to TaskA with a reference to

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OsEvent EvtA and RtePositionInTask equal to 1.

RE2 is mapped to OsTask TaskC but virtually mapped to TaskA with a reference to
OsEvent EvtB and RtePositionInTask equal to 2.
RE3 is mapped to OsTask TaskD but virtually mapped to TaskA with a reference to
OsEvent EvtC and RtePositionInTask equal to 3.
Possible RTE implementation:
RTE set EvtA, EvtB and EvtC according to the callbacks from COM.
Full preemptive scheduling is configured for Task A.
TaskB priority = TaskC priority = TaskD priority = TaskA priority + 1
1 void TaskA(void)
2 {
3 EventMaskType Event;
4
5 while(1)
6 {
7 WaitEvent(EvtA | EvtB | EvtC);
8 GetEvent(TaskA, &Event);
9 if (Event & EvtA)
10 {
11 ClearEvent(EvtA);
12 ActivateTask(TaskB);
13 }
14 else if (Event & EvtB)
15 {
16 ClearEvent(EvtB);
17 ActivateTask(TaskC);
18 }
19 else if (Event & EvtC)
20 {
21 ClearEvent(EvtC);
22 ActivateTask(TaskD);
23 }
24 }
25 }
26

27 void TaskB(void)
28 {
29 RE1();
30 TerminateTask();
31 }
32

33 void TaskC(void)
34 {
35 RE2();
36 TerminateTask();
37 }
38

39 void TaskD(void)
40 {
41 RE3();
42 TerminateTask();
43 }

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It is also possible to configure the RTE for the monitoring of group of runnable = moni-
toring of the sum of the runnable execution times.
Example 3: Monitoring of group of runnables
Description of the example:
RunnableEntity RE1 is activated by TimingEvent 100ms T1.
RunnableEntity RE2 is activated by TimingEvent 100ms T2.
RunnableEntity RE3 is activated by TimingEvent 100ms T3.
RunnableEntity RE4 is activated by DataReceivedEvent DR1.
RunnableEntity RE5 is activated by DataReceivedEvent DR2.
RunnableEntity RE6 is activated by DataReceivedEvent DR3.
RunnableEntity RE7 is activated by DataReceivedEvent DR4.
DataReceivedEvent DR2, DR3 and DR4 references the same dataElement. Eval-
uation order of the RTEEvents shall be T1, T2, T3, DR1, DR2, DR3 then DR4.
RE2 and RE3 shall be monitored as a group.
RE6 and RE7 shall be monitored as a group.
Possible RTE configuration:
RE1 is mapped to OsTask TaskA with a reference to OsEvent EvtA and RtePosi-
tionInTask equal to 1.
RE2 is mapped to OsTask TaskB but virtually mapped to TaskA with a reference to
OsEvent EvtA and RtePositionInTask equal to 2.
RE3 is mapped to OsTask TaskB but virtually mapped to TaskA with a reference to
OsEvent EvtA and RtePositionInTask equal to 3.
RE4 is mapped to OsTask TaskA with a reference to OsEvent EvtB and RtePosi-
tionInTask equal to 4.
RE5 is mapped to OsTask TaskA with a reference to OsEvent EvtC and RtePosi-
tionInTask equal to 5.
RE6 is mapped to OsTask TaskC but virtually mapped to TaskA with a reference to
OsEvent EvtC and RtePositionInTask equal to 6.
RE7 is mapped to OsTask TaskC but virtually mapped to TaskA with a reference to
OsEvent EvtC and RtePositionInTask equal to 7.
Possible RTE implementation:
RTE starts cyclic OsAlarm with 100ms period.
This OsAlarm is configured to set EvtA.
RTE set EvtB and EvtC according to the callbacks from COM.
Full preemptive scheduling is configured for Task A.
TaskB priority = TaskC priority = TaskA priority + 1
1 void TaskA(void)
2 {
3 EventMaskType Event;
4
5 while(1)
6 {
7 WaitEvent(EvtA | EvtB | EvtC);
8 GetEvent(TaskA, &Event);
9 if (Event & EvtA)

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10 {
11 ClearEvent(EvtA);
12 RE1();
13 ActivateTask(TaskB);
14 }
15 else if (Event & EvtB)
16 {
17 ClearEvent(EvtB);
18 RE4();
19 }
20 else if (Event & EvtC)
21 {
22 ClearEvent(EvtC);
23 RE5();
24 ActivateTask(TaskC);
25 }
26 }
27 }
28
29 void TaskB(void)
30 {
31 RE2();
32 RE3();
33 TerminateTask();
34 }
35
36 void TaskC(void)
37 {
38 RE6();
39 RE7():
40 TerminateTask();
41 }

4.2.2.8 TimingEvent activated runnables

A TimingEvent / BswTimingEvent is a recurring RTEEvent / BswEvent which is

used to perform recurrent activities in RunnableEntitys or BswSchedulableEn-
titys.
[SWS_Rte_06728] d The RTE shall activate RunnableEntitys triggered by a
TimingEvent recurring with the effective period time of an TimingEvent for the
component instance. c(SRS_Rte_00237)
[SWS_Rte_06729] d The RTE Generator shall determine the effective period time of
a TimingEvent from the period attribute of the TimingEvent if no Instantia-
tionRTEEventProps are defined for the TimingEvent of the component instance.
c(SRS_Rte_00237)
[SWS_Rte_06730] d The RTE Generator shall determine the effective period time of
a TimingEvent from the period attribute of the InstantiationRTEEventProps if

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InstantiationRTEEventProps are defined for the TimingEvent of the compo-

nent instance. c(SRS_Rte_00237)
Please note the component instance is defined by RteSoftwareComponentIn-
stanceRef of RteSwComponentInstance referring to the SwComponentProto-
type. See figure 7.2.

4.2.2.9 Synchronization of TimingEvent activated runnables

This section describes how the synchronization of TimingEvent activated

RunnableEntitys can be done.
The following cases have to be distinguished:
the RunnableEntitys are mapped to the same OsTask
the RunnableEntitys are mapped to different OsTasks in the same OsAp-
plication
the RunnableEntitys are mapped to different OsTasks in different OsAppli-
cations on the same core
the RunnableEntitys are mapped to different OsTasks in different OsAppli-
cations on different cores on the same microcontroler
the RunnableEntitys are mapped to different OsTasks in different OsAppli-
cations on different microcontrolers within the same ECU
the RunnableEntitys are mapped to different OsTasks in different OsAppli-
cations on different microcontrolers within different ECUs
As OsAlarms and OsScheduleTableExpiryPoints are used to implement
TimingEvents the following different possible solutions exist to synchronize the
RunnableEntitys according to the different cases:
use the same OsAlarm or OsScheduleTableExpiryPoint to implement all
the TimingEvents
use different OsAlarms or OsScheduleTableExpiryPoints in different Os-
ScheduleTables based on the same OsCounter and start them with absolute
start offset to control the synchronization between them
use different OsScheduleTableExpiryPoints in different explicitely synchro-
nized OsScheduleTables based on different OsCounters but with same pe-
riod and max value
The choice of the OsAlarms or OsScheduleTableExpiryPoints used to imple-
ment the TimingEvents can be configured in the RTE with RteUsedOsAlarmRef or
RteUsedOsSchTblExpiryPointRef in the RteEventToTaskMapping.

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[SWS_Rte_07804] d The RTE Generator shall respect the configured Os-

Alarms (RteUsedOsAlarmRef) and OsScheduleTableExpiryPoints (RteUse-
dOsSchTblExpiryPointRef) for the implementation of the TimingEvents. c
(SRS_Rte_00232)
The choice of the absolute start offset of the OsAlarms and OsScheduleTables can
be configured in the RTE with RteExpectedActivationOffset in the RteUse-
dOsActivation.
[SWS_Rte_07805] d The RTE Generator shall respect the configured absolute
start offset (RteExpectedActivationOffset) when it starts the OsAlarms and
OsScheduleTables used for the implementation of the TimingEvents. c
(SRS_Rte_00232)
The RTE / Basic Software Scheduler is not responsible to synchronize/desynchronize
the explicitly synchronized OsScheduleTables. The RTE / Basic Software Scheduler
is only responsible to start the explicitly synchronized OsScheduleTables. In this
case no RteExpectedActivationOffset has to be configured.

4.2.2.10 BackgroundEvent activated Runnable Entities and BasicSoftware

Scheduleable Entities

A BackgroundEvent is a recurring RTEEvent / BswEvent which is used to perform

background activities in RunnableEntitys or BswSchedulableEntitys. It is sim-
ilar to a TimingEvent but has no fixed time period and is typically activated only with
lowest priority.
A BackgroundEvent triggering can be implemented in two principle ways by the
RTE Generator. Either the background activation is done by a real background
OS task; or the BackgroundEvents are activated like TimingEvents on a fixed
recurrence which is defined by the ECU integrator (see [SWS_Rte_07179] and
[SWS_Rte_07180]). The second way might be required to overcome the limitation of a
single real background OS task if BackgroundEvents are used in several partitions.
If the background activation is done by a real background OS task, the OS Task has
to have the lowest priority on the CPU core (see [SWS_Rte_07181]). If a implemen-
tation is used where the OS Task terminates (BasicTask ) the background OS Task is
immediately reactivated after its termination, e.g. by usage of ChainTask call of the
OS.

4.2.2.11 InitEvent activated Runnable Entities

An InitEvent which is used to activate RunnableEntitys for initialization purpose

in case of start of the RTE or restart of a partition.
[SWS_Rte_06761] d The RTE shall activate RunnableEntitys triggered by a
InitEvent once when Rte_Start is executed. c(SRS_Rte_00240)

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[SWS_Rte_06762] d The RTE shall activate RunnableEntitys triggered by

a InitEvent once when Rte_RestartPartition is executed for those
RunnableEntitys belonging to the restarted partition. c(SRS_Rte_00240)
The activation of RunnableEntitys for initialization purpose can basically imple-
mented in two ways. Either the InitEvent is mapped to an OsTask or the
InitEvent is mapped to an RteInitializationRunnableBatch.
In case of an OsTask the RunnableEntitys are scheduled once when the related
task gets active. In this case the RtePositionInTask decides in which order the
RunnableEntitys are scheduled in the whole task. For instance if the InitEvent
is mapped after an TimingEvent ans the TimingEvent is already triggered when
the OsTask gets active the initialization runnable is called after time periodic runn-
able. Therefore its in the responsibility of the ECU integrator to ensure the correct and
intended order.
In the case the InitEvent is mapped to an RteInitializationRunnableBatch
the RunnableEntitys are scheduled when the related Rte_Init function is called.
In this case the RtePositionInTask decides in which order in which order the
RunnableEntitys are scheduled in the same Rte_Init function.
The triggering of the recurrent RTEEvents is released with the call of
Rte_StartTiming.

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4.2.3 Activation and Start of ExecutableEntitys

This section defines the activation of ExecutableEntity execution-instances

by using a state machine (Fig. 4.17).

[RTE / SchM of the partition is running]

ExecutableEntity execution-instance is schedulable

- activations: int = 0
continuously increasing timer
- debounceTimer: float = minimumStartInterval

Main Activation ModeDisabling

started

/debounceTimer =
minimumStartInterval
activate
terminate suspended not /activations = enabled
activated 1

running [Activation in
wait state activated] [ModeDisabling [ModeDisabling exitsDisablingMode
in state enabled] in state disabled]
waiting entersDisablingMode
preempt resume disabled
[activations == 0]
not
release [ModeDisabling in
activated disabled
preempted to be started state disabled]
debounce disabled
start activation debounce
[activations > 0] [ModeDisabling in activation
state enabled]
corresponds to task state "ready"

activate
disabled /activations +=
activated (activations <=
queue length) 1:0
[ModeDisabling [ModeDisabling in
in state enabled] state disabled]

activated [debounceTimer >=

start minimumStartInterval]
/activations -= 1;
debounceTimer = 0
activate
/activations += (activations <= queue length) 1:0

[RTE / SchM of the partition is stopped]

Figure 4.17: General state machine of an ExecutableEntity execution-instance.

An ExecutableEntity execution-instance is one execution-instance of an Ex-

ecutableEntity (RunnableEntity or BswSchedulableEntity) with respect to
concurrent execution.
For a RunnableEntity with canBeInvokedConcurrently = false or for a
BswSchedulableEntity whose referenced BswModuleEntry in the role im-
plementedEntry has a isReentrant attribute set to false, there is only one
execution-instance. For a RunnableEntity with canBeInvokedConcurrently =
true or for a BswSchedulableEntity whose referenced BswModuleEntry in the
role implementedEntry has its isReentrant attribute set to true, there is a well
defined number of execution-instances.
E.g., for a server runnable that is executed as direct function call, each Server-
CallPoint relates to exactly one ExecutableEntity execution-instance.
The main principles for the activation of runnables are:
RunnableEntitys are activated by RTEEvents
BswSchedulableEntitys are activated by BswEvents
only server runnables (RunnableEntitys activated by an OperationIn-
vokedEvent) are queued. All other ExecutableEntitys are unqueued.

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If a RunnableEntity is activated due to several DataReceivedEvents of

dataElements with swImplPolicy = queued, it is the responsibility of the
RunnableEntity to dequeue all queued data.
A minimumStartInterval will delay the activation of RunnableEntitys
and BswSchedulableEntitys to prevent that a RunnableEntity or a
BswSchedulableEntity is started more than once within the minimum-
StartInterval.
Each ExecutableEntity execution-instance has its own state machine. The
full state machine is shown in Fig. 4.17.
Note on Figure 4.17: the debounce timer debounceTimer is an increasing timer. It
is local to the ExecutableEntity execution-instance. The activation counter
activations is a local integer to count the pending activations. The runnable de-
bounce timer and the activation counter are like the whole state machine just concepts
for the specification of the behavior, not for the implementation.

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The pending activations are only counted for server runnables when RTE im-
plements a call serialization of their invocation. In all other cases, RTE does not
queue activations and the state machine for the activation of ExecutableEntity
execution-instances simplifies as shown in Figure 4.18.
sm state machine for an EcexutableEntity execution-instance w ith unqueued activ ation

[RTE / SchM of the partition is runni ng]

ExecutableEntity execution-instance is schedulable

continuously increasing timer

- debounceT imer: float = minimumStartInterval

constraints
{queue length == 0}

Main Activ ation

started
/debounceT imer =
minimumStartInterval

terminate not acti vate

suspended
activ ated
running [Activation in
wait state acti vated]
debounce
w aiting preempt resume activ ation

release
preempted to be started
activ ated
start
start [debounceT imer >=
/debounceT imer = 0
minimumStartInterval]
corresponds to task state "ready"

[RT E / SchM of the partition is stopped]

Figure 4.18: Statemachine of an unqueued execution-instance (not a server runnable)

If RTE implements an ExecutableEntity execution-instance by direct func-

tion call, as described in section 4.2.3.1, the simplified state machine is shown in Fig-
ure 4.21.
The state machine of an ExecutableEntity execution-instance is not identical
to that of the task containing the ExecutableEntity execution-instance, but
there are dependencies between them. E.g., the ExecutableEntity execution-
instance can only be running when the corresponding task is running.
Table 4.3 describes all ExecutableEntity execution-instance states in de-
tail. The ExecutableEntity execution-instance state machine is split in
two threads. The Main states describe the real state of the ExecutableEntity
execution-instance and the transitions between a suspended and a running Ex-
ecutableEntity execution-instance, while the supporting Activation states de-
scribe the state of the pending activations by RTEEvents or BswEvents.

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ExecutableEntity description
execution-instance state
ExecutableEntity execution-
This super state describes the life time of the state machine.
instance is schedulable Only when RTE or the SchM that runs the ExecutableEntity
execution-instance is started in the corresponding partition, this
state machine is active.
ExecutableEntity execution-instance Main states
suspended The ExecutableEntity execution-instance is not started and
there is no pending request to start the ExecutableEntity
execution-instance.
to be started The ExecutableEntity execution-instance is activated but
not yet started. Entering the to be started state, usually im-
plies the activation of a task that starts the ExecutableEn-
tity execution-instance. The ExecutableEntity execution-
instance stays in the to be started state, when the task is already
running until the gluecode of the task actually calls the function
implementing the ExecutableEntity.
running The function, implementing the ExecutableEntity code is be-
ing executed. The task that contains the ExecutableEntity
execution-instance is running.
waiting A task containing the ExecutableEntity execution-instance is
waiting at a WaitPoint within the ExecutableEntity.
preempted A task containing the ExecutableEntity execution-instance is
preempted from executing the function that implements the Ex-
ecutableEntity.
started started is the super state of running, waiting and pre-
empted between start and termination of the ExecutableEn-
tity execution-instance.
ExecutableEntity execution-instance Activation states
not activated No RTEEvent / BswEvent requires the activation of the Exe-
cutableEntity execution-instance.
debounce activation One or more RTEEvents with a startOnEvent relation to the
ExecutableEntity execution-instance have occurred 2 , but
the debounce timer has not yet exceeded the minimumStart-
Interval. The activation will automatically advance to acti-
vated, when the debounce timer reaches the minimumStart-
Interval.
activated One or more RTEEvents or BswEvents with a startOnEvent
relation to the ExecutableEntity have occurred, and the
debounce timer has exceeded the minimumStartInterval.
While the activated state is active, the Main state of the Ex-
ecutableEntity execution-instance automatically advances
from the suspended to the to be started state.
For a server runnable where RTE implements a serialization
of server calls, an activation counter counts the number of acti-
vations.
When the ExecutableEntity execution-instance starts, the
activation counter will be decremented. When there is still a
pending activation, the Activation state will turn to debounce ac-
tivation and otherwise to no activation.

2
Note that, e.g., the same OperationInvokedEvent may lead to the activation of different Exe-
cutableEntity execution-instances, depending on the client that caused the event.

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Table 4.3: States defined for each ExecutableEntity execution-instance.

Note: For tasks, the equivalent state machine does not distinguish between preempted
and to be started. They are subsumed as ready.
ExecutableEntity description of event and actions
execution-instance transi-
tion
initial transition to Exe- RTE or the SchM that runs the ExecutableEntity execution-
cutableEntity execution-instance instance is being started in the corresponding partition.
is schedulable
termination transition from Exe- RTE or the SchM that runs the ExecutableEntity execution-
cutableEntity execution-instance instance gets stopped in the corresponding partition.
is schedulable
transitions to ExecutableEntity execution-instance Main states
initial transition to suspended the suspended state is the initial state of the ExecutableEn-
tity execution-instance Main states.
from started to suspended The ExecutableEntity execution-instance has run to comple-
tion.
from suspended to to be This transition is automatically executed, while the Activation
started state is activated.
from to be started to running The function implementing the ExecutableEntity is called
from the context of this execution-instance.
from preempted to running A task that is preempted from executing the ExecutableEn-
tity execution-instance changes state from preempted to run-
ning.
from running to waiting The runnable enters a WaitPoint.
from waiting to preempted The task that contains a runnable waiting at a wait point changes
from waiting to preempted.
from running to preempted A task containing the ExecutableEntity execution-instance
gets preempted from executing the function that implements the
ExecutableEntity.
transitions to ExecutableEntity execution-instance Activation states
initial transition to not activated The not activated state is the initial state of the ExecutableEn-
tity execution-instance Activation states.
The debounce timer is set to the minimumStartInterval
value, to prevent a delay for the first activation of the Exe-
cutableEntity execution-instance.
from activated to not activated The function implementing the ExecutableEntity is called
from the context of this execution-instance and no further acti-
vations are pending.
The debounce timer is reset to 0.
from not activated to debounce The occurrence of an RTEEvent or BswEvent requires the acti-
activation vation of the ExecutableEntity execution-instance.
A local activation counter is set to 1. If no minimumStartIn-
terval is configured, or the debounce timer has already ex-
ceeded the minimumStartInterval, the debounce activation
state will be omitted and the transition leads directly to the acti-
vated state.

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from activated to debounce ac- The function implementing the ExecutableEntity is called
tivation from the context of this execution-instance (start), and another
activation is pending (only for server runnable).
The activation counter is decremented and the debounce timer
reset to 0.
If no minimumStartInterval is configured, the debounce ac-
tivation state will be omitted and the transition returns directly at
the activated state.
from debounce activation to If RTE implements server call serialization for a server runn-
debounce activation able, and an OperationInvokedEvent occurs for the server
runnable.
The activation counter is incremented (at most to the queue
length).
from debounce activation to ac- The debounce timer is expired,
tivated debounce timer > minimumStartInterval.
from activated to activated If RTE implements server call serialization for a server runn-
able, and an OperationInvokedEvent occurs for the server
runnable.
The activation counter is incremented (at most to the queue
length).

Table 4.4: States defined for each ExecutableEntity execution-instance.

[SWS_Rte_02697] d The activation of ExecutableEntity execution-instances

shall behave as described by the state machine in Fig. 4.17, Table 4.3, and Ta-
ble 4.4. c(SRS_Rte_00072, SRS_Rte_00160, SRS_Rte_00133, SRS_Rte_00211,
SRS_Rte_00214, SRS_Rte_00217, SRS_Rte_00219)
The RTE will not activate, start or release ExecutableEntity execution-
instances of a terminated or restarting partition (see [SWS_Rte_07604]), or when
RTE is stopped in that partition (see [SWS_Rte_02538]).
The following examples in Fig. 4.19 and Fig. 4.20 show the different timing situations
of the ExecutableEntity execution-instances with or without a minimum-
StartInterval. The minimumStartInterval can reduce the number of activa-
tions by collecting more activating RTEEvents / BswEvents within that interval. No
activation will be lost. The activations are just delayed and combined to keep the min-
imumStartInterval. The started state of the ExecutableEntity execution-
instance Main states and the activated state of the Activation states are shown in the
figures. Each flash indicates the occurrence of an RTEEvent or BswEvent.

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Figure 4.19: Activation of a ExecutableEntity execution-instance without minimum-

StartInterval

Figure 4.19 illustrates the activation of an ExecutableEntity execution-

instance without minimumStartInterval. The execution-instance can only
be activated once (does not apply for server runnables). The activation is not
queued. The execution-instance can already be activated again when it is still
started (see Figure 4.17).
With configuration of the RteEventToTaskMapping such activation can even be
used for an immediately restart of the ExecutableEntity before other Exe-
cutableEntitys which are mapped subsequently in the task are getting started.
[SWS_Rte_07061] d When the parameter RteImmediateRestart / RteBswImme-
diateRestart is TRUE the RTE shall immediately restart the ExecutableEntity
after termination if the ExecutableEntity was activated by this RTEEvent / Bsw-
Event while it was already started. c(SRS_Rte_00072)
This can be utilized to spread a long-lasting calculation in several smaller slices with
the aim to reduce the maximum blocking time of Tasks in a Cooperative Environment.
Typically between each iteration one Schedule Point has to be placed and the num-
ber of iteration might depend on operating conditions of the ECU. Further on in a
calculation chain the long-lasting calculation shall be completed before consecutive
ExecutableEntitys are called.

Example 4.3

Example of RunnableEntity code:

1 LongLastingRunnable()
2 {
3 /* the very long calculation */
4 if(!finished)
5 {
6 /* further call is required to complete the calculation*/
7 Rte_IrTrigger_LongLastingCalculation_ProceedCalculation();
8 }
9 }

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Therefore the ExecutableEntity with a long lasting calculation issues a trigger as

long as the calculation is not finished. These trigger activates the ExecutableEntity
again. The first activation of the ExecutableEntity might be triggered by another
RTEEvent / BswEvent.

Figure 4.20: Activation of an ExecutableEntity with a minimumStartInterval

Figure 4.20 illustrates the activation of an ExecutableEntity with a minimum-

StartInterval. (Here no execution-instances have to be distinguished, there
is only one.) The red arrows in this figure indicate the minimumStartInterval af-
ter each start of the ExecutableEntity. An RTEEvent or BswEventwithin this
minimumStartInterval leads to the debounce activation state. When the min-
imumStartInterval ends, the debounce activation state changes to the activated
state.
When a data received event activates a runnable when it is still running, it might be
that the data is already dequeued during the current execution of the runnable. Still,
the runnable will be started again. So, it is possible that a runnable that is activated by
a data received event finds an empty receive queue.

4.2.3.1 Activation by direct function call

In many cases, ExecutableEntity execution-instances can be implemented

by RTE by a direct function call if allowed by the canBeInvokedConcurrently.
In these cases, the activation and start of the ExecutableEntity execution-
instance collapse to one event. The states to be started, debounce activation,
and activated are passed immediately.
Obviously, debounce activation is not possible (see meta model restriction
[SWS_Rte_02733]).
There is one ExecutableEntity execution-instance per call point, trigger
point, mode switch point, etc.. The state chart simplifies as shown in Figure 4.21.

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sm statemachine for direct function calls of an ExecutableEntity execution-instance

[RTE / SchM of the partition i s running]

ExecutableEntity execution-instance is schedulable

constraints
{queue length == 0}
{debounceTimer == 0}
{canBeInvocecConcurrentl y == true}
{runnable not mapped to task}

Main

started

terminate suspended

running
wait

waiting preempt resume

release
preempted activate

corresponds to task state "ready"

[RTE / SchM of the partiti on is stopped]

Figure 4.21: State machine of an ExecutableEntity execution-instance that is imple-

mented by direct function calls.

A triggered ExecutableEntity is activated at least by one ExternalTrig-

gerOccurredEvent or InternalTriggerOccurredEvent. In some cases, the
Trigger Event Communication or the Inter Runnable Triggering is implemented by RTE
generator as a direct function call of the triggered ExecutableEntity by the trig-
gering ExecutableEntity.
An on-entry ExecutableEntity, on-transition ExecutableEntity, on-
exit ExecutableEntity or a ModeSwitchAck ExecutableEntity might be
executed in the context of the Rte_Switch API if an asynchronous mode switch pro-
cedure is implemented.
A server runnable is exclusively activated by OperationInvokedEvents and
implements the server in client server communication. In some cases, the client server
communication is implemented by RTE as a direct function call of the server by the
client.

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4.2.3.2 Activation Offset for RunnableEntitys and BswSchedulableEntitys

In order to allow optimizations (smooth cpu load, mapping of RunnableEntitys and

BswSchedulableEntitys with different periods in the same task to avoid data shar-
ing, etc.), the RTE has to handle the activation offset information from a task shared
reference point only for time trigger RunnableEntitys and BswSchedulableEn-
titys. The maximum period of a task can be calculated automatically as the great-
est common divisor (GCD) of all runnables period and offset.It is assumed that the
runnables worst case execution is less than the GCD. In case of the worst case execu-
tion is greater than the GCD, the behavior becomes undefined.
[SWS_Rte_07000] d The RTE shall respect the configured activation offset of
RunnableEntitys mapped within one OS task. c(SRS_Rte_00161)
[SWS_Rte_07520] d The Basic Software Scheduler shall respect the configured
activation offset of BswSchedulableEntitys mapped within one OS task. c
(SRS_Rte_00212)
[SWS_Rte_CONSTR_09010] Worst case execution time shall be less than the
GCD d The RunnableEntitys or BswSchedulableEntitys worst case execution
time shall be less than the GCD of all BswSchedulableEntitys and RunnableEn-
titys period and offset in activation offset context for RunnableEntitys and
BswSchedulableEntitys. c()
Note: The following examples are showing RunnableEntitys only. Nevertheless it
is applicable for BswSchedulableEntitys or a mixture of RunnableEntitys and
BswSchedulableEntitys as well.
Example 1:
This example describes 3 runnables mapped in one task with an activation offset de-
fined for each runnables.
Runnable Period Activation Offset
R1 100ms 20ms
R2 100ms 60ms
R3 100ms 100ms

Table 4.5: Runnables timings

The runnables R1, R2 and R3 are mapped in the task T1 at 20 ms which is the GCD
of all runnables period and activation offset.

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Figure 4.22: Example of activation offset for runnables

Example 2:
This example describes 4 runnables mapped in one task with an activation offset and
position in task defined for each runnables.
Runnable Period Position in task Activation Offset
R1 50ms 1 0ms
R2 100ms 2 0ms
R3 100ms 3 70ms
R4 50ms 4 20ms

Table 4.6: Runnables timings with position in task

The runnables R1, R2, R3 and R4 are mapped in the task T1 at 10 ms which is the
GCD of all runnables period and activation offset.

Figure 4.23: Example of activation offset for runnables with position in task

4.2.3.3 Provide activating RTE event

It is possible to define the activation of one runnable entity by several RTE events. But
when the runnable entity is invoked by the RTE it is shall be possible to query which of
the RTE events actually triggered the execution of this runnable entity run.

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Contract Phase:
The provide activating event feature is enabled if the runnable entity has at least one
activationReason defined.
[SWS_Rte_08051] d If the provide activating event feature is enabled, the RTE gen-
erator in contract phase shall generate the runnable entity signature according to
[SWS_Rte_01126] and [SWS_Rte_08071]. c(SRS_Rte_00238)
[SWS_Rte_08052] d If the provide activating event feature is en-
abled, the RTE generator in contract phase shall generate the type
Rte_ActivatingEvent_<name> (activation vector), where <name> is
the symbol describing the runnable entitys entry point, to store the activation bits.
Based on the highest value of ExecutableEntityActivationReason.bitPosi-
tion for this runnable entity the type shall be either uint8, uint16, or uint32 so
that the highest value of bitPosition fits into the data type. c(SRS_Rte_00238)
Note that it is considered an invalid configuration if ExecutableEntityActiva-
tionReason.bitPosition has a value higher than 31 (see [constr_1226] in soft-
ware component template [2])
[SWS_Rte_08053] d If the provide activating RTE event feature is enabled, the RTE
generator in contract phase shall generate for each ExecutableEntityActiva-
tionReason of one executable entity a definition to provide the specific bit position in
the Rte_ActivatingEvent_<name> data type:
#define Rte_ActivatingEvent_<name>_<activation> xxU
The value of xx is defined by the bitPosition xx = 2 bitPosition. c(SRS_Rte_00238)
Example: runnable entity symbol = "greek" and has 3 ExecutableEntityActiva-
tionReasons aggregated. Those are referenced by 4 RTE events:
RTEEvent: "alpha" symbol: aleph
RTEEvent: "beta" symbol: beth
RTEEvent: "gamma" symbol: gimel
RTEEvent: "delta" symbol: gimel
This will result in a unit8 Rte_ActivatingEvent_<name> data type:
typedef uint8 Rte_ActivatingEvent_greek and 3 definitions:
#define Rte_ActivatingEvent_greek_aleph 01U
#define Rte_ActivatingEvent_greek_beth 02U
#define Rte_ActivatingEvent_greek_gimel 04U
Generation Phase:
[SWS_Rte_08054] d If the provide activating RTE event feature is enabled, the RTE
shall collect the activating RTE events, which have the activationReasonRep-

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resentation reference defined, in the context of the OS task the runnable entity
is mapped to in an activation vector at the corresponding bit position as defined in
[SWS_Rte_08053]. c(SRS_Rte_00238)
[SWS_Rte_08055] d If the provide activating RTE event feature is enabled, the RTE
shall provide the collected activating RTE events (activation vector) to the runnable
entity API when the runnable entity is "started". The activation vector shall be reset
immediately after it has been provided. c(SRS_Rte_00238)
Since it is possible that there is a time gap between the activation and the execution
(start) of a runnable entity the subsequent activations are summed up and provided
with the start of the runnable entity.
Activations during the execution of a runnable entity are collected for the next start of
that runnable entity.

4.2.4 Interrupt decoupling and notifications

4.2.4.1 Basic notification principles

Several BSW modules exist which contain functionality which is not directly activated,
triggered or called by AUTOSAR software-components but by other circumstances, like
digital input port level changes, complex driver actions, CAN signal reception, etc. In
most cases interrupts are a result of those circumstances. For a definition of interrupts,
see the VFB [1].
Several of these BSW functionalities create situations, signalled by an interrupt, when
AUTOSAR SW-Cs have to be involved. To inform AUTOSAR software components of
those situations, runnables in AUTOSAR software components are activated by no-
tifications. So interrupts that occur in the basic software have to be transformed into
notifications of the AUTOSAR software components. Such a transformation has to take
place at RTE level at the latest! Which interrupt is connected to which notification is
decided either during system configuration/generation time or as part of the design of
Complex Device Drivers or the Microcontroller Abstraction Layer.
This means that runnables in AUTOSAR SW-Cs have to be activated or "waiting" cat2
runnables in extended tasks have to be set to "ready to run" again. In addition some
event specific data may have to be passed.
There are two different mechanisms to implement these notifications, depending on
the kind of BSW interfaces.
1. BSW with Standardized interface. Used with COM and OS.
Basic-SW modules with Standardized interfaces cannot create RTEEvents. So
another mechanism must be chosen: "callbacks"
The typical callback realization in a C/C++ environment is a function call.
2. BSW with AUTOSAR interface: Used in all the other BSW modules.
Basic-SW modules with AUTOSAR-Interfaces have their interface specified in an

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AUTOSAR BSW description XML file which contains signal specifications accord-
ing to the AUTOSAR specification. The BSW modules can employ RTE API calls
like Rte_Send see 5.6.5). RTEEvents may be connected with the RTE API
calls, so realizing AUTOSAR SW-C activation.
Note that an AUTOSAR software component can send a notification to another AU-
TOSAR software component or a BSW module only via an AUTOSAR interface.

4.2.4.2 Interrupts

The AUTOSAR concept as stated in the VFB specification [1] does not allow AUTOSAR
software components to run in interrupt context. Only the Microcontroller Abstraction
Layer, Complex Device Drivers and the OS are allowed to directly interact with inter-
rupts and implement interrupt service routines (see Requirement [SRS_BSW_00164].
This ensures hardware independence and determinism.
If AUTOSAR software components were allowed to run in interrupt context, one AU-
TOSAR software component could block the entire system schedule for an unaccept-
ably long period of time. But the main reason is that AUTOSAR software components
are supposed to be independent of the underlying hardware so that exchangeability
between ECUs can be ensured. The schedule of an ECU is more predictable and bet-
ter testable if the timing effects of interrupts are restricted to the basic software of that
ECU.
Furthermore, AUTOSAR software components are not allowed to explicitly block inter-
rupts as a means to ensure data consistency. They have to use RTE functions for this
purpose instead, see Section 4.2.5.

4.2.4.3 Decoupling interrupts on RTE level

Runnables in AUTOSAR SW-Cs may be running as a consequence of an interrupt but

not in interrupt context, which means not within an interrupt service routine! Between
the interrupt service routine and an AUTOSAR SW-C activation there must always be
a decoupling instance. AUTOSAR SW-C runnables are only executed in the context of
tasks.
The decoupling instance is latest in the RTE. For the RTE there are several options to
realize the decoupling of interrupts. Which option is the best depends on the configu-
ration and implementation of the RTE, so only examples are given here.
Example 1:
Situation:
An interrupt routine calls an RTE callback function
Intention:

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Start a runnable
RTE job:
RTE starts a task containing the runnable activation code by using the Acti-
vateTask()" OS service call.
Other more sophisticated solutions are possible, e.g. if the task containing the
runnable is activated periodically.
Example 2:
Situation:
An interrupt routine calls an RTE callback function
Intention:

Make a runnable wake up from a wait point

RTE job:
RTE sets an OS event
These scenarios described in the examples above not only hold for RTE callback func-
tions but for other RTE API functions as well.
[SWS_Rte_03600] d The RTE shall prevent runnable entities of AUTOSAR software-
components to run in interrupt context. c(SRS_Rte_00099)

4.2.4.4 RTE and interrupt categories

Since category 1 interrupts are not under OS control the RTE has absolutely no pos-
sibility to influence their execution behavior. So no category 1 interrupt is allowed to
reach RTE. This is different for interrupt of category 2.
[SWS_Rte_03594] d The RTE Generator shall reject the configuration if a SwcB-
swRunnableMapping associates a BswInterruptEntity with a RunnableEn-
tity and the attribute interruptCategory of the BswInterruptEntity is equal
to cat 1. c(SRS_Rte_00018, SRS_Rte_00099)
[SWS_Rte_CONSTR_09012] Category 1 interrupts shall not access the RTE. d
Category 1 interrupts shall not access the RTE. c()

4.2.4.5 RTE and Basic Software Scheduler and BswExecutionContext

The RTE and Basic Software Scheduler do support the invocation triggered Exe-
cutableEntity via direct function call in some special cases. Nevertheless it shall
be prevented that an ExecutableEntity from a particular execution context calls

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a triggered ExecutableEntity witch requires an execution context with more

permissions.
The constraint [constr_4086] in document [9] describes the possible invocation of Ex-
ecutableEntitys by direct function call dependent from BswExecutionContext.
This applies to the invocation of a triggered ExecutableEntity by the
SchM_Trigger, SchM_ActMain or Rte_Trigger APIs, or to the invocation
of an on-entry ExecutableEntity, on-transition ExecutableEntity,
on-exit ExecutableEntity or ModeSwitchAck ExecutableEntity by the
SchM_Switch or Rte_Switch APIs.

4.2.4.5.1 Interrupt decoupling for COM

COM callbacks are used to inform the RTE about something that happened indepen-
dently of any RTE action. This is often interrupt driven, e.g. when a data item has been
received from another ECU or when a S/R transmission is completed.
It is the RTEs job e.g. to create RTEEvents from the interrupt.
[SWS_Rte_03530] d The RTE shall provide callback functions to allow COM to signal
COM events to the RTE. c(SRS_Rte_00072, SRS_Rte_00099)
[SWS_Rte_03531] d The RTE shall support runnable activation by COM callbacks. c
(SRS_Rte_00072, SRS_Rte_00099)
[SWS_Rte_03532] d The RTE shall support category 2 runnables to wake up from a
wait point as a result of COM callbacks. c(SRS_Rte_00072, SRS_Rte_00099)
See RTE callback API in chapter 5.9.

4.2.5 Data Consistency

4.2.5.1 General

Concurrent accesses to shared data memory can cause data inconsistencies. In gen-
eral this must be taken into account when several code entities accessing the same
data memory are running in different contexts - in other words when systems using
parallel (multicore) or concurrent (singlecore) execution of code are designed. More
general: Whenever task context-switches occur and data is shared between tasks,
data consistency is an issue.
AUTOSAR systems use operating systems according to the AUTOSAR-OS specifica-
tion which is derived from the OSEK-OS specification. The Autosar OS specification
defines a priority based scheduling to allow event driven systems. This means that
tasks with higher priority levels are able to interrupt (preempt) tasks with lower priority
level.

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The "lost update" example in Figure 4.24 illustrates the problem for concurrent read-
modify-write accesses:
1) Get X=5
2) X+=2
3) X = X

Task A

Task B

1) X*=5 2) X*++ => X*=6

3) X = X* => X=6

Data X 5555555557777766666666

Time
Figure 4.24: Data inconsistency example - lost update

There are two tasks. Task A has higher priority than task B. A increments the commonly
accessed counter X by 2, B increments X by 1. So in both tasks there is a read
(step1) modify (step2) write (step3) sequence. If there are no atomic accesses (fully
completed read-modify-write accesses without interruption) the following can happen:
1. Assume X=5.
2. B makes read (step1) access to X and stores value 5 in an intermediate store
(e.g. on stack or in a CPU register).
3. B cannot continue because it is preempted by A.
4. A does its read (step1) modify (step2) write (step3) sequence, which means
that A reads the actual value of X, which is 5, increments it by 2 and writes the
new value for X, which is 7. (X=5+2)
5. A is suspended again.
6. B continues where it has been preempted: with its modify (step2) and write
(step3) job. This means that it takes the value 5 form its internal store, incre-
ments it by one to 6 and writes the value 6 to X (X=5+1).
7. B is suspended again.
The correct result after both Tasks A and B are completed should be X=8, but the
update of X performed by task A has been lost.

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4.2.5.2 Communication Patterns

In AUTOSAR systems the RTE has to take care that a lot of the communication is not
corrupted by data consistency problems. RTE Generator has to apply suitable means
if required.
The following communication mechanisms can be distinguished:
Communication within one atomic AUTOSAR SW-C:
Communication between Runnables of one atomic AUTOSAR SW-C running in
different task contexts where communication between these Runnables takes
place via commonly accessed data. If the need to support data consistency by
the RTE exists, it must be specified by using the concepts of "ExclusiveAreas" or
"InterRunnableVariables" only.
Intra-partition communication between AUTOSAR SW-Cs:
Sender/Receiver (S/R) communication between Runnables of different AU-
TOSAR SW-Cs using implicit or explicit data exchange can be realized by the
RTE through commonly accessed RAM memory areas. Data consistency in
Client/Server (C/S) communication can be put down to the same concepts as
S/R communication. Data access collisions must be avoided. The RTE is re-
sponsible for guaranteeing data consistency.
Inter-Partition communication
The RTE has to guarantee data consistency. The different possibilities pro-
vided to the RTE for the communication between partitions are discussed in sec-
tion 4.3.4.
Intra-ECU communication between AUTOSAR SW-Cs and BSW modules with
AUTOSAR interfaces:
This is a special case of the above two.
Inter ECU communication
COM has to guarantee data consistency for communication between ECUs on
complete path between the COM modules of different ECUs. The RTE on each
ECU has to guarantee that no data inconsistency might occur when it invokes
COM send respectively receive calls supplying respectively receiving data items
which are concurrently accessed by application via RTE API call, especially when
queueing is used since the queues are provided by the RTE and not by COM.
[SWS_Rte_03514] d The RTE has to guarantee data consistency for communication
via AUTOSAR interfaces. c(SRS_Rte_00032)

4.2.5.3 Concepts

In the AUTOSAR SW-C Template [2] chapter "Interaction between runnables within
one component", the concepts of
1. ExclusiveAreas (see section 4.2.5.5 below)

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2. InterRunnableVariables (see section 4.2.5.6 below)

are introduced to allow the user (SW-Designer) to specify where the RTE shall guar-
antee data consistency for AUTOSAR SW-C internal communication and execution
circumstances. This is discussed in more detail in next sections.

Additionally exclusive areas are also available for Basic Software Modules to protect
access to module internal data. See [9]. The exclusive areas for Basic Software Mod-
ules are handled by the Basic Software Scheduler.
The AUTOSAR SW-C template specification [2] also states that AUTOSAR SW-Cs may
define PerInstanceMemory or arTypedPerInstanceMemory, allowing reserva-
tion of static (permanent) need of global RAM for the SW-C. Nothing is specified about
the way Runnables might access this memory. RTE only provides a reference to this
memory (see section 5.6) but doesnt guarantee data consistency for it.
The implementer of an AUTOSAR SW-C has to take care by himself that accesses
to RAM reserved as PerInstanceMemory out of Runnables running in different task
contexts dont cause data inconsistencies. On the other hand this provides more
freedom in using the memory.

4.2.5.4 Mechanisms to guarantee data consistency

ExclusiveAreas and InterRunnableVariables are only mentioned in association with

AUTOSAR SW-C internal communication. Nevertheless the data consistency mecha-
nisms behind can be applied to communication between AUTOSAR SW-Cs or between
AUTOSAR SW-Cs and BSW modules too. Everywhere where the RTE has to guaran-
tee data consistency.
The data consistency guaranteeing mechanisms listed here are derived from AU-
TOSAR SW-C Template and from further discussions. There might be more (see sec-
tion 4.3.4 for the mechanisms involved for inter-partition communication).
The RTE has the responsibility to apply such mechanisms if required. The details how
to apply the mechanisms are left open to the RTE supplier.
Mechanisms:
Sequential scheduling strategy
The activation code of Runnables is sequentially placed in one task so that no
interference between them is possible because one Runnable is only activated
after the termination of the other. Data consistency is guaranteed.
Interrupt blocking strategy
Interrupt blocking can be an appropriate means if collision avoidance is required
for a very short amount of time. This might be done by disabling respectively
suspending all interrupts, Os interrupts only or - if hardware supports it - only
of some interrupt levels. In general this mechanism must be applied with care

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because it might influence SW in tasks with higher priority too and the timing of
the complete system.
Usage of OS resources
Usage of OS resources. Advantage in comparison to Interrupt blocking strat-
egy is that less SW parts with higher priority are blocked. Disadvantage is that
implementation might consume more resources (code, runtime) due to the more
sophisticated mechanism. Appropriateness of this mechanism may vary depend-
ing on the number of OSs/cores and/or the number of available resources.
Task blocking strategy
Mutual task preemption is prohibited. This might be reached e.g. by assigning
same priorities to affected tasks, by assigning same internal OS resource to af-
fected tasks or by configuring the tasks to be non-preemptive. This mechanism
may be inappropriate in multi-partitioned systems.
Copy strategy
Idea: The RTE creates copies of data items so that concurrent accesses in dif-
ferent task contexts cannot collide because some of the accesses are redirected
to the copies.
How it can work:
Application for read conflicts:
For all readers with lower priority than the writer a read copy is provided.
Example:
There exist Runnable R1, Runnable R2, data item X and a copy data
item X*. When Runnable R1 is running in higher priority task context than
R2, and R1 is the only one writing X and R2 is reading X it is possible to
guarantee data consistency by making a copy of data item X to variable X*
before activation of R2 and redirecting write access from X to X* or the read
access from X to X* for R2.

Application for write conflicts:

If one or more data item receiver with a higher priority than the sender exist,
a write copy for the sender is provided.
Example:
There exist Runnable R1, Runnable R2, data item X and copy data item X*.
When Runnable R1 (running in lower priority task context than R2) is
writing X and R2 is reading X, it is possible to guarantee data consistency
by making a copy of data item X to data item X* before activation of R1
together with redirecting the write access from X to X* for R1 or the read
access from X to X* for R2.

Usage of this copy mechanism may make sense if one or more of the following
conditions hold:

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This copy mechanism can handle those cases when only one instance does
the data write access.
R2 is accessing X several times.
More than one Runnable R2 has read (resp. write) access to X.
To save runtime is more important than to save code and RAM.
Additional RAM requirements to hold the copies is acceptable.
Further issues to be taken into account:
AUTOSAR SW-Cs provided as source code and AUTOSAR SW-Cs pro-
vided as object code may or have to be handled in different ways. The
redirecting mechanism for source code could use macros for C and C++
very efficiently whereas object-code AUTOSAR SW-Cs most likely are
forced to use references.

Note that the copy strategy is used to guarantee data consistency for implicit
sender-receiver communication (VariableAccesses in the dataReadAccess
or dataWriteAccess role) and for AUTOSAR SW-C internal communication
using InterRunnableVariables with implicit behavior.

4.2.5.5 Exclusive Areas

The concept of ExclusiveArea is more a working model. Its not a concrete imple-
mentation approach, although concrete possible mechanisms are listed in AUTOSAR
SW-C template specification [2].
Focus of the ExclusiveArea concept is to block potential concurrent accesses
to get data consistency. ExclusiveAreas implement critical section
ExclusiveAreas are associated with RunnableEntitys. The RTE is forced to guar-
antee data consistency when the RunnableEntity runs in an ExclusiveArea. A
RunnableEntity can run inside one or several ExclusiveAreas completely or can
enter one or several ExclusiveAreas during their execution for one or several times
.
If an AUTOSAR SW-C requests the RTE to look for data consistency for its inter-
nally used data (for a part of it or the complete one) using the ExclusiveArea
concept, the SW designer can use the API calls "Rte_Enter()" in 5.6.28 and
"Rte_Exit()" in 5.6.29 to specify where he wants to have the protection by RTE
applied.
"Rte_Enter()" defines the begin and "Rte_Exit()" defines the end of the code se-
quence containing data accesses the RTE has to guarantee data consistency
for.

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If the SW designer wants to have the mutual exclusion for complete

RunnableEntitys he can specify this by using the ExclusiveArea in the role
"runsInsideExclusiveArea" in the AUTOSAR SW-C description.
In principle the ExclusiveArea concept can handle the access to single data items
as well as the access to several data items realized by a group of instructions. It
also doesnt matter if one Runnable is completely running in an ExclusiveArea and
another Runnable only temporarily enters the same ExclusiveArea. The RTE has
to guarantee data consistency.
[SWS_Rte_03500] d The RTE has to guarantee data consistency for arbitrary ac-
cesses to data items accessed by Runnables marked with the same ExclusiveArea.
c(SRS_Rte_00032, SRS_Rte_00046)
[SWS_Rte_03515] d RTE has to provide an API enabling the SW-Cs to access and
leave ExclusiveAreas. c(SRS_Rte_00046)
If Runnables accessing same ExclusiveArea are assigned to be executing in dif-
ferent task contexts, the RTE can apply suitable mechanisms, e.g. task blocking, to
guarantee data consistency for data accesses in the common ExclusiveArea. How-
ever, specials attributes can be set that require certain data consistency mechanisms
in which case the RTE generator is forced to apply the selected mechanism.
The Basic Software Scheduler provides ExclusiveAreas for the Basic Software
Modules. Basic Software Modules have to use the API calls SchM_Enter()" in 6.5.1
and SchM_Exit()" in 6.5.2 to specify where the protection by Basic Software Sched-
uler has to be applied.
[SWS_Rte_07522] d The Basic Software Scheduler has to guarantee data consistency
for arbitrary accesses to data items accessed by BswModuleEntitys marked with the
same ExclusiveArea. c(SRS_Rte_00222, SRS_Rte_00046)
[SWS_Rte_07523] d Basic Software Scheduler has to provide an API enabling the
Basic Software Module to access and leave ExclusiveAreas. c(SRS_Rte_00222,
SRS_Rte_00046)
It is not supported, that a BswModuleEntity which is not a BswSchedulableEn-
tity uses an ExclusiveArea in the role runsInsideExclusiveArea This is not
possible, because such BswSchedulableEntity might be called directly by other
Basic Software Modules and therefore the Basic Software Scheduler is not able to
enter and exit the ExclusiveArea automatically.
[SWS_Rte_07524] d The RTE generator shall reject a configuration where a BswMod-
uleEntity which is not a BswSchedulableEntity uses an ExclusiveArea
in the role runsInsideExclusiveArea. c(SRS_Rte_00222, SRS_Rte_00046,
SRS_Rte_00018)

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4.2.5.5.1 Assignment of data consistency mechanisms

The data consistency mechanism that has to be applied to anExclusiveArea might

be domain, ECU or even project specific. The decision which mechanism has to be
applied by RTE / Basic Software Scheduler is taken during ECU integration by set-
ting the ExclusiveArea configuration parameter RteExclusiveAreaImplMecha-
nism. This parameter is an input for RTE generator.
As stated in section 4.2.5.4 there might be more mechanisms to realize Exclu-
siveAreas as mentioned in this specification. So RTE implementations might provide
other mechanisms in plus by a vendor specific solutions. This allows further optimiza-
tions.
Actually following values for configuration parameter RteExclusiveAreaIm-
plMechanism must be supported:
ALL_INTERRUPT_BLOCKING
This value requests enabling and disabling of all Interrupts and is based on the
Interrupt blocking strategy.
OS_INTERRUPT_BLOCKING
This value requests enabling and disabling of Os Interrupts and is based on the
Interrupt blocking strategy.
OS_RESOURCE
This value requests to apply the Usage of OS resources mechanism.
OS_SPINLOCK
This value is used to co-ordinate concurrent access by TASKs/ISR2s on different
cores to a shared resource.
NONE
RTE generator shall not apply any mechanisms for data consistency. Data con-
sistency will be ensured by methods outside of RTE implementation control.
The strategies / mechanisms are described in general in section 4.2.5.4.

[SWS_Rte_03504] d If the configuration parameter RteExclusiveAreaImplMech-

anism of an ExclusiveArea is set to value ALL_INTERRUPT_BLOCKING the RTE
generator shall use the mechanism of Interrupt blocking (blocking all interrupts) to guar-
antee data consistency if data inconsistency could occur. c(SRS_Rte_00032)
[SWS_Rte_05164] d If the configuration parameter RteExclusiveAreaImplMech-
anism of an ExclusiveArea is set to value OS_INTERRUPT_BLOCKING the RTE
generator shall use the mechanism of Interrupt blocking (blocking Os interrupts only)
to guarantee data consistency if data inconsistency could occur. c(SRS_Rte_00032)
[SWS_Rte_03595] d If the configuration parameter RteExclusiveAreaImplMech-
anism of an ExclusiveArea is set to value OS_RESOURCE the RTE generator shall

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use OS resources to guarantee data consistency if data inconsistency could occur. c

(SRS_Rte_00032)
The requirements above have the limitation "if data inconsistency could occur"
because it makes no sense to apply a data consistency mechanism if no potential
data inconsistency can occur. This can be relevant if e.g. the "Sequential scheduling
strategy" (described in section 4.2.5.4) still has solved the item by the ECU integrator
defining an appropriate runnable-to-task mapping.

[SWS_Rte_08419] d If the configuration parameter RteExclusiveAreaImplMech-

anism of an ExclusiveAreais set to value OS_SPINLOCK the RTE generator shall
use OS spinlocks to guarantee data consistency if data inconsistency could occur. c
(SRS_Rte_00032)
[SWS_Rte_03999] d If the configuration parameter RteExclusiveAreaImplMech-
anism of an ExclusiveArea is set to value NONE then the RTE generator shall create
functionally empty implementations for all required APIs. c(SRS_Rte_00032)
Note:
The configuration parameter RteExclusiveAreaImplMechanism can be specified
for each SWC instance and therefore the implementation for each API may differ.
The description "functionally empty" implies no code to lock/unlock the exclusive
area however other code, such as VFB trace, may be present. If all SWC instances
result in identical implementations, e.g. empty, then an RTE generator can provide a
function-like macro within the RTE API mappings to further optimize the generated
API. Such optimization is not possible when implementations differ since the API
mappings are generated per-type.

In a SWC code, it is not allowed to use WaitPoints inside an ExclusiveArea:

The RTE generator might use OSEK services to implement ExclusiveAreas and
waiting for an OS event is not allowed when an OSEK resource has been taken for
example. For RunnableEntityEntersExclusiveArea, the RTE generator cannot check if
WaitPoints are inside an ExclusiveArea. Therefore, it is the responsibility of the
SWC Code writer to ensure that no WaitPoints are used inside an exclusive area.
But for RunnableEntitys running inside a ExclusiveArea, the RTE generator is
able to do the following check.
[SWS_Rte_07005] d The RTE generator shall reject a configuration with a WaitPoint
applied to a RunnableEntity which is using the ExclusiveArea in the role run-
sInsideExclusiveArea c(SRS_Rte_00032, SRS_Rte_00018)

4.2.5.6 InterRunnableVariables

AtomicSwComponents (except for NvBlockComponents) can reserve InterRunnable-

Variables which can be accessed by the Runnables of this one AtomicSwComponent

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(also see section 4.3.3.1). Read and write accesses are possible. There is a separate
set of those variables per AUTOSAR SW-C instance.
Again the RTE has to guarantee data consistency. Appropriate means will depend on
Runnable placement decisions which are taken during ECU configuration.
[SWS_Rte_03516] d The RTE has to guarantee data consistency for communication
between Runnables of one AUTOSAR software-component instance using the same
InterRunnableVariable. c(SRS_Rte_00142, SRS_Rte_00032)
Next the two kinds of InterRunnableVariables are treated:
1. InterRunnableVariables with implicit behavior
(implicitInterRunnableVariable)
2. InterRunnableVariables with explicit behavior
(explicitInterRunnableVariable)

4.2.5.6.1 InterRunnableVariables with implicit behavior

In applications with very high SW-C communication needs and much real time con-
straints (like in powertrain domain) the usage of a copy mechanism to get data con-
sistency might be a good choice because during RunnableEntity execution no data
consistency overhead in form of concurrent access blocking code and runtime during
its execution exists - independent of the number of data item accesses.
Costs are code overhead in the RunnableEntity prologue and epilogue which is
often be minimal compared to other solutions. Additional RAM need for the copies
comes in plus.
When InterRunnableVariables with implicit behavior are used the RTE is required to
make the data available to the Runnable using the semantics of a copy operation
but is not necessarily required to use a unique copy for each RunnableEntity.
Focus of InterRunnableVariable with implicit behavior is to avoid concurrent ac-
cesses by redirecting second, third, .. accesses to data item copies.
[SWS_Rte_03517] d The RTE shall guarantee data consistency for InterRunnableVari-
ables with implicit behavior by avoiding concurrent accesses to data items specified by
implicitInterRunnableVariable using one or more copies and redirecting ac-
cesses to the copies.
c(SRS_Rte_00142, SRS_Rte_00032)
Compared with Sender/Receiver communication
Like with VariableAccesses in the dataReadAccess and dataWriteAc-
cess roles, the Runnable IN data is stable during Runnable execution, which
means that during an Runnable execution several read accesses to an implic-
itInterRunnableVariable always deliver the same data item value.

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Like with VariableAccesses in the dataReadAccess and dataWriteAc-

cess roles, the Runnable OUT data is forwarded to other Runnables not before
Runnable execution has terminated, which means that during an Runnable ex-
ecution write accesses to implicitInterRunnableVariable are not visible
to other Runnables.
This behavior requires that Runnable execution terminates.
[SWS_Rte_03582] d The value of several read accesses to implicitInter-
RunnableVariable during a RunnableEntity execution shall only change for
write accesses performed within this RunnableEntity to the implicitInter-
RunnableVariable c(SRS_Rte_00142)
[SWS_Rte_03583] d Several write accesses to implicitInterRunnableVari-
able during a RunnableEntity execution shall result in only one update of the im-
plicitInterRunnableVariable content visible to other RunnableEntitys with
the last written value.
c(SRS_Rte_00142)
[SWS_Rte_03584] d The update of implicitInterRunnableVariable done dur-
ing a RunnableEntity execution shall be made available to other RunnableEn-
titys after the RunnableEntity execution has terminated.
c(SRS_Rte_00142)
[SWS_Rte_07022] d If a RunnableEntity has both read and write access to an
implicitInterRunnableVariable the result of the write access shall be imme-
diately visible to subsequent read accesses from within the same runnable entity. c
(SRS_Rte_00142)
The usage of implicitInterRunnableVariables is permitted for all categories of
runnable entities. For runnable entities of category 2, the behavior is guaranteed only
if it has a finite execution time. A category 2 runnable that runs forever will not have its
data updated.
For API of implicitInterRunnableVariable see sections 5.6.23 and 5.6.24.
For more details how this mechanism could work see "Copy strategy" in section 4.2.5.4.

4.2.5.6.2 InterRunnableVariables with explicit behavior

In many applications saving RAM is more important than saving runtime. Also some
application require to have access to the newest data item value without any delay,
even several times during execution of a Runnable.
Both requirements can be fulfilled when RTE supports data consistency by blocking
second/third/.. concurrent accesses to a signal buffer if data consistency is jeopar-
dized. (Most likely RTE has nothing to do if SW is running on a 16bit machine and
making an access to an 16bit value when a 16bit data bus is present.)

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Focus of InterRunnableVariables with explicit behavior is to block potential con-

current accesses to get data consistency.
The mechanism behind is the same as in the ExclusiveArea concept (see section
4.2.5.5). But although ExclusiveAreas can handle single data item accesses too, their
API is made to make the RTE to apply data consistency means for a group of in-
structions accessing several data items as well. So when using an ExclusiveArea to
protect accesses to one single common used data item each time two RTE API calls
grouped around are needed. This is very inconvenient and might lead to faults if the
calls grouped around might be forgotten.
The solution is to support InterRunnableVariables with explicit behavior.
[SWS_Rte_03519] d The RTE shall guarantee data consistency for InterRunnableVari-
ables with explicit behavior by blocking concurrent accesses to data items specified by
explicitInterRunnableVariable.
c(SRS_Rte_00142, SRS_Rte_00032)
The RTE generator is not free to select on its own if implicit or explicit behavior shall
be applied. Behavior must be known at AUTOSAR SW-C design time because in case
of InterRunnableVariables with implicit behavior the AUTOSAR SW-C designer might
rely on the fact that several read accesses always deliver same data item value.
[SWS_Rte_03580] d The RTE shall supply different APIs for InterRunnableVariables
with implicit behavior and InterRunnableVariables with explicit behavior.
c(SRS_Rte_00142)
For API of InterRunnableVariables with explicit behavior see sections 5.6.26 and
5.6.27.

4.2.6 Multiple trigger of Runnable Entities and Basic Software Schedulable En-
tities

Concurrent activation
The AUTOSAR SW-C template specification [2] states that runnable entities (further
called "runnables") might be invoked concurrently several times if the Runnables at-
tribute canBeInvokedConcurrently is set. Its then in the responsibility of the AU-
TOSAR SW-C designer that no data might be corrupted when the Runnable is activated
several times in parallel.
If a SW-C has multiple instances, they have distinct runnables. Two runnables that
use the same RunnableEntity description of the same SwcInternalBehavior
description but are instantiated with two different SW-C instances are treated as two
distinct runnables in the following. This kind of concurrency is always allowed between
SW-Cs, even if the runnables have their canBeInvokedConcurrently attribute set
to false.
[SWS_Rte_03523] d The RTE shall support concurrent activation of the same instance
of a runnable entity if the associative attribute canBeInvokedConcurrently is set

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to TRUE. This includes concurrent activation in several tasks. If the attribute is not
set resp. set to FALSE, concurrent activation of the runnable entity is forbidden. (see
requirement [SWS_Rte_05083]) c(SRS_Rte_00072, SRS_Rte_00133)
The Basic Software Module Description Template [9] specifies the possible concurrent
activation of BswModuleEntitys by the attribute isReentrant.
[SWS_Rte_07525] d The Basic Software Scheduler shall support concurrent activation
of the same instance of a BswSchedulableEntity if the attribute isReentrant of
the referenced BswModuleEntry in the role implementedEntry is set to true.
This includes concurrent activation in several tasks. If the attribute is set to false
concurrent activation of the BswSchedulableEntity is forbidden. (see requirement
[SWS_Rte_07588]) c()
Concurrent activation of the same instance of a ExecutableEntity results in mul-
tiple ExecutableEntity execution-instances. One for each context of activa-
tion.
Activation by several RTEEvents and BswEvents
Nevertheless a Runnable whose attribute canBeInvokedConcurrently is NOT set
might be still activated by several RTEEvents if activation configuration guarantees
that concurrent activation can never occur and the minimumStartInterval condi-
tion is kept. This includes activation in different tasks. In this case, the runnable is
still considered to have only one ExecutableEntity execution-instances. A
standard use case is the activation of same instance of a runnable in different modes.
[SWS_Rte_03520] d The RTE shall support activation of same instance of a runnable
entity by multiple RTEEvents. c(SRS_Rte_00072)
RTEEvents are triggering runnable activation and may supply 0..several role param-
eters, see section 5.7.3. Role parameters are not visible in the runnables signature -
except in those triggered by an OperationInvokedEvent. With the exception of the
RTEEvent OperationInvokedEvent all role parameters can be accessed by user
with implicit or explicit Receiver API.
[SWS_Rte_03524] d The RTE shall support activation of same instance of a runnable
entity by RTEEvents of different kinds. c(SRS_Rte_00072)
The RTE does NOT support a runnable entity triggered by an RTEEvent Opera-
tionInvokedEvent to be triggered by any other RTEEvent except for other Opera-
tionInvokedEvents of compatible operations. This limitation is stated in appendix
in section A.2 ([SWS_Rte_03526]).
The similar configuration as mentioned for the RunnableEntitys might be used for
BswSchedulableEntitys. Therefore even a BswSchedulableEntity whose ref-
erenced BswModuleEntry in the role implementedEntry has its isReentrant
attribute set to false can be activated by several BswEvents.
[SWS_Rte_07526] d The Basic Software Scheduler shall support activation of same
instance of a BswSchedulableEntity by multiple BswEvents. c()

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[SWS_Rte_07527] d The Basic Software Scheduler shall support activation of same

instance of a BswSchedulableEntity by BswEvents of different kinds. c()

4.2.7 Implementation of Parameter and Data Elements

4.2.7.1 General

A SWC communicates with other SWCs through ports. A port is characterized by a

PortInterface and there are several kinds of PortInterfaces. In this section,
we focus on the ParameterInterface, the SenderReceiverInterface, and the
NvDataInterface. These three kinds of PortInterfaces aggregate some specific
interface elements. For example, a ParameterInterface aggregates 0..* Parame-
terDataPrototypes.

4.2.7.2 Compatibility rules

A receiver port can only be connected to a compatible provider port. The compatibility
rules are explained in the AUTOSAR Software Component Template [2]. The compat-
ibility mainly depends on the attribute swImplPolicy attached to the element of the
interface. The table 4.7 below gives an overview of compatibility rules.
Provide Port Require Port
Port Interface Prm S/R NvD
Interface Element PDP VDP VDP
swImplPolicy fixed const standard standard queued standard
fixed yes yes yes yes no yes
Prm PDP const no yes yes yes no yes
standard no no yes yes no yes
S/R VDP standard no no no yes no yes
queued no no no no yes no
NvD VDP standard no no no yes no yes

Table 4.7: Overview of compatibility of ParameterDataPrototype and VariableDataProto-

types

Interface Element
PDP : ParameterDataPrototype
VDP : VariableDataPrototype
Port Interface
Prm : ParameterInterface
S/R : SenderReceiverInterface
NvD : NvDataInterface

Table 4.8: Key to table 4.7

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For examples, a Require Port that expects a fixed parameter - i.e produced by a macro
#define - can only be connected to a Port that provides a fixed Parameter. This is be-
cause this fixed data may be used in a compilation directive like #IF and only macro
#define (fixed data) can be compiled in this case. On the other hand, this provided fixed
parameter can be connected to almost every require port, except a queued Sender/re-
ceiver interface.
The RTE doesnt have to check the compatibility between ports since this task is per-
formed at the VFB level. But it shall provide the right implementation of interface el-
ement and API according the attribute swImplPolicy attached to the interface ele-
ment.

4.2.7.3 Implementation of an interface element

The implementation of an interface element depends on the attribute swImplPolicy.

The attribute swCalibrationAccess determines how the interface element can be
accessed by e.g. an external calibration tool. The table 4.9 defines the supported
combinations of swImplPolicy and swCalibrationAccess attribute setting and
gives the corresponding implementation by the RTE.
swImplPolicy SwCalibrationAccess
not Accessi- readOnly readWrite Implementation
ble
fixed yes not sup- not supported macro defini-
ported tion or c const
declaration de-
pendent from
RTE optimiza-
tion
const yes yes not supported c const declara-
tion
standard yes yes yes standard im-
plementation
i.e. a variable
for Variable-
DataPrototype
in RAM or a
calibration pa-
rameter in ROM
3

queued yes not sup- not supported FIFO Queue

ported
measurement not sup- yes not supported Variable
Point ported

Table 4.9: Data implementation according swImplPolicy

3
calibration parameter have to be allocated in RAM if data emulation with SW support is required,
see 4.2.8.3.5

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4.2.7.4 Initialization of VariableDataPrototypes

Basically the need for initialization of any VariableDataPrototypes is specified by

the Software Component Descriptions defining the VariableDataPrototypes. This
information is basically defined by the existence of an initValue, the sectionIni-
tializationPolicy of the related SwAddrMethod. As described in section 7.11
additionally the initialization strategy can be adjusted by the integrator of the RTE to
adjust the behavior to the start-up code.
[SWS_Rte_07046] d Variables implementing VariableDataPrototypes shall be
initialized if
an initValue is defined
AND
no SwAddrMethod is defined for VariableDataPrototype.
c(SRS_Rte_00052, SRS_Rte_00068, SRS_Rte_00116)
[SWS_Rte_03852] d Variables implementing VariableDataPrototypes shall be
initialized if
an initValue is defined
AND
a SwAddrMethod is defined for VariableDataPrototype
AND
the RteInitializationStrategy for the sectionInitializa-
tionPolicy of the related SwAddrMethod is NOT configured to
RTE_INITIALIZATION_STRATEGY_NONE.
c(SRS_Rte_00052, SRS_Rte_00068, SRS_Rte_00116)

4.2.7.5 Initial value calculation

Basically the Meta Model defines two different flavors of rule based value specifica-
tions:
ApplicationRuleBasedValueSpecification
NumericalRuleBasedValueSpecification
The ApplicationRuleBasedValueSpecification defines the values in the
physical representation whereas the NumericalRuleBasedValueSpecification
defines the values in the numerical representation. (See document [2], section Data
Description) But both are using the RuleBasedValueSpecification to define a
set of values based on a rule and arguments for the rule.

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Especially in case of large arrays an high amount of initial values are required. But
many arrays are initialized with identical values or at least filled up to the end with iden-
tical values. For such use case the RuleBasedValueSpecification of category
FILL_UNTIL_END can be used to avoid the creation and maintenance of redundant
ValueSpecifications.
[SWS_Rte_06764] d The RTE Generator shall support ApplicationRuleBased-
ValueSpecifications for DataPrototypes typed by ApplicationArray-
DataTypes. c(SRS_Rte_00239)
[SWS_Rte_06765] d The RTE Generator shall support NumericalRuleBasedVal-
ueSpecifications for DataPrototypes typed by ImplementationDataTypes
of category ARRAY and for Compound Primitive Data Types which are
mapped to ImplementationDataTypes of category ARRAY. c(SRS_Rte_00239)
[SWS_Rte_06733] d The RTE Generator shall support RuleBasedValueSpecifi-
cations with the rule FILL_UNTIL_END. c(SRS_Rte_00239)
[SWS_Rte_08542] d The RTE Generator shall support RuleBasedValueSpecifi-
cations with the rule FILL_UNTIL_MAX_SIZE. c(SRS_Rte_00239)
[SWS_Rte_06734] d The RTE shall initialize the elements of the array ac-
cording the values defined by RuleBasedValueSpecification.arguments
if a RuleBasedValueSpecification with the rule FILL_UNTIL_END or
FILL_UNTIL_MAX_SIZE is applicable.
Thereby the order of arguments corresponds to the order of elements in the array, i.e.
the first argument corresponds to the first element of the array, the second argument
corresponds to the second element of the array, and so on. c(SRS_Rte_00239)
AUTOSAR defines a standardized behavior of RuleBasedValueSpecifications
only for the rules FILL_UNTIL_END and FILL_UNTIL_MAX_SIZE. RTE vendors are
free to add additional, non-standardized rules (see [TPS_SWCT_01495]).
[SWS_Rte_06735] d The RTE Generator shall apply the value of the last RuleBased-
ValueSpecification argument to any following element of the array until the last
element of the array if the rule is set to FILL_UNTIL_END and the number of ar-
guments is smaller than the number of elements of the array to which it is applied. c
(SRS_Rte_00239)
[SWS_Rte_08792] d The RTE Generator shall apply the value of the last Rule-
BasedValueSpecification argument to so many following elements of the ar-
ray until first maxSizeToFill elements of the array are filled if the rule is set to
FILL_UNTIL_MAX_SIZE and the number of arguments is smaller than the number of
elements of the array to which it is applied. c(SRS_Rte_00239)
[SWS_Rte_06736] d The RTE Generator shall ignore arguments that go beyond the
last element of the array if the number of arguments exceeds the number of elements
of the array to which it is applied. c(SRS_Rte_00239)

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4.2.8 Measurement and Calibration

4.2.8.1 General

Calibration is the process of adjusting an ECU SW to fulfill its tasks to control physical
processes respectively to fit it to special project needs or environments. To do this two
different mechanisms are required and have to be distinguished:
1. Measurement
Measure whats going on in the ECU e.g. by monitoring communication data
(Inter-ECU, Inter-Partition, Intra-partition, Intra-SWC). There are several ways to
get the monitor data out of the ECU onto external visualization and interpretation
tools.
2. Calibration
Based on the measurement data the ECU behavior is modified by changing
parameters like runtime SW switches, process controlling data of primitive or
composite data type, interpolation curves or interpolation fields. In the following
for such parameters the term calibration parameter is used.

With AUTOSAR, a calibration parameter is instantiated with a ParameterDataPro-

totype class that aggregates a SwDataDefProps with properties swCalibra-
tionAccess = readWrite and swImplPolicy = standard.
Nevertheless it is supported, that VariableDataPrototype is instantiated that
aggregates a SwDataDefProps with properties swCalibrationAccess = read-
Write and swImplPolicy = standard. But in this case the implementation of such
VariableDataPrototype is treated identical to swCalibrationAccess = read-
Only and the RTE Generator has not to implement further measures (for instance
"Data emulation with SW support" 4.2.8.3.5).
Its possible that different SwDataDefProps settings are specified for a Variable-
DataPrototype and its referenced AutosarDataType. In this case the rules spec-
ified in the SWC-T shall be applied. See as well [SWS_Rte_07196].
SwDataDefProps contain more information how measurement values or characteris-
tics are to be interpreted and presented by external calibration tools. This information
is needed for the ASAM2 respectively A2L file generation. Afterwards the A2L file is
used by ECU-external measurement and calibration tools so that these tools know e.g.
how to interpret raw data received from ECU and how to get them.

4.2.8.1.1 Definition of Calibration Parameters

Calibration parameters can be defined in AUTOSAR SW as well as in Basic-SW. In

the AUTOSAR Architecture there are two possibilities to define calibration parameters.
Which one to choose is not in the focus of this RTE specification.

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1. RTE provides the calibration parameter access if they are specified via a Param-
eterSwComponentType. A ParameterSwComponentType can be defined
in order to provide ParameterDataPrototypes (via ports) to other Software
Components.
2. Calibration parameter access invisible for RTE
Since multiple instantiation with code sharing is not allowed for Basic-SW and
multiple instantiation is not always required for software components its possi-
ble for these software to define own methods how calibration parameters are
allocated. Nevertheless these calibration parameters shall be described in the
belonging Basic Software Module Description respectively Software Component
Description. In case data emulation with SW-support is used, the whole software
and tool chain for calibration and measurement, e.g. Basic-SW (respectively XCP
driver) which handles emulation details and data exchange with external calibra-
tion tools then has to deal with several emulation methods at once: The one
the RTE uses and the other ones each Basic-SW or SWC using local calibration
parameters practices.

4.2.8.1.2 Online and offline calibration

The way how measurement and calibration is performed is company, domain and
project specific. Nevertheless two different basic situations can be distinguished and
are important for understanding:
1. Offline calibration
Measure when ECU is running, change calibration data when ECU is off.
Process might look like this:
(a) Flash the ECU with current program file
(b) PowerUp ECU in target (actual or emulated) environment
(c) Measure running ECU behavior - log or monitor via external tooling
(d) Switch off ECU
(e) Change calibration parameters and create a new flashable program file (hex-
file) e.g. by performing a new SW make run
(f) Back to (a).
Do loop as long as a need for calibration parameter change exists or the Flash
survives.
2. Online calibration

Do measurement and calibration in parallel.

In this case in principle all steps mentioned in "Offline calibration" above have
to be performed in parallel. So other mechanisms are introduced avoiding ECU

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flashing when modifying ECU parameters. ECU works temporarily with changed
data and when the calibration process is over the result is an updated set of
calibration data. In next step this new data set might be merged into the existing
program file or the new data set might be an input for a new SW make run. In
both cases the output is a new program file to flash into the ECU.
Process might look like this:
(a) Flash the ECU with current program file
(b) PowerUp ECU in target environment
(c) Measure running ECU behavior and temporarily modify calibration parame-
ters. Store set of updated calibration parameters (not on the ECU but on the
calibration tool computer). Actions in step c) may be done iteratively.
(d) Switch off ECU
(e) Create a new flashable program file (hex-file) containing the new calibration
parameters
Procedure over

4.2.8.2 Measurement

4.2.8.2.1 What can be measured

The AUTOSAR SW-C template specification [2] explains to which AUTOSAR proto-
types a measurement pattern can be applied.
RTE provides measurement support for
1. communication between Ports
Measurable are
VariableDataPrototypes of a SenderReceiverInterface used in
a PortPrototype (of a SwComponentPrototype) to capture sender-
receiver communication or between SwComponentPrototypes
VariableDataPrototypes of a NvDataInterface used in a PortPro-
totype (of a SwComponentPrototype) to capture non volatile data com-
munication or between SwComponentPrototypes
ArgumentDataPrototypes of an ClientServerOperation in a
ClientServerInterface to capture client-server communication be-
tween SwComponentPrototypes
2. communication inside of AUTOSAR SW-Cs
Measurable are implicitInterRunnableVariable, explicitInter-
RunnableVariable or arTypedPerInstanceMemory

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3. data structures inside a AUTOSAR NvBlockSwComponent

Measurable are ramBlocks and romBlocks of a NvBlockSwComponents
NvBlock
4. Communication inside of AUTOSAR Basic Software Modules
Measurable are VariableDataPrototypes defined in role of arTyped-
PerInstanceMemory.
Further on AUTOSAR SW-Cs and Basic Software Modules can define measurables
which are not instantiated by RTE. These are described by VariableDataProto-
types in the role staticMemory. Hence those kind of measurables are not described
in the generated McSupportData of the RTE (see 4.2.8.4).

4.2.8.2.2 RTE support for Measurement

The way how measurement data is read out of the ECU is not focus of the RTE spec-
ification. But the RTE structure and behavior must be specified in that way that mea-
surement values can be provided by RTE during ECU program execution.
To avoid synchronization effort it shall be possible to read out measurement data asyn-
chronously to RTE code execution. For this the measurement data must be stable. As
a consequence this might forbid direct reuse of RAM locations for implementation of
several AUTOSAR communications which are independent of each other but occurring
sequentially in time (e.g. usage of same RAM cell to store uint8 data sender receiver
communication data between Runnables at positions 3 and 7 and later the same RAM
cell for the communication between Runnables at positions 9 and 14 of same periodi-
cally triggered task). So applying measurable elements might lead to less optimizations
in the generated RTEs code and to increased RAM need.
There are circumstances when RTE will store same communication data in different
RAM locations, e.g. when realizing implicit sender receiver communication or Inter
Runnable Variables with implicit behavior. In these cases there is only the need to
have the content of one of these stores made accessible from outside.

The information that measurement shall be supported by RTE is defined in applied

SwDataDefProps:
The value readOnly or readWrite of the property swCalibrationAccess defines
that measurement shall be supported, any other value of the property swCalibra-
tionAccess is to be ignored for measurement.

Please note that the definition of [SWS_Rte_03900] and [SWS_Rte_03902] do

not have further conditions when the location in memory has to be provided to
support the usage of VariableDataPrototype with the swImplPolicy = mea-
surementPoint. In case that the MCD system is permitted to access such a
VariableDataPrototype the RTE is not allowed to do optimization which would
prevent such measurement even if there is no consuming software component in the

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input configuration.

The memory locations containing measurement values are initialized according to

[SWS_Rte_07046] and [SWS_Rte_03852].
[SWS_Rte_07044] d The RTE generator shall reject input configurations in which a
RunnableEntity defines a read access (VariableAccess in the role readLocal-
Variable, dataReadAccess, dataReceivePointByValue or dataReceive-
PointByArgument) to an VariableDataPrototype with a swImplPolicy set to
measurementPoint. c(SRS_Rte_00018)
For sender-receiver resp. client-server communication same or compatible interfaces
are used to specified connected ports. So very often measurement will be demanded
two times for same or compatible VariableDataPrototype on provide and require
side of a 1:1 communication resp. multiple times in case of 1:N or M:1 communication.
In that case providing more than one measurement value for a VariableDataPro-
totype doesnt make sense and would increase ECU resources need excessively.
Instead only one measurement value shall be provided.

Sender-receiver communication
[SWS_Rte_03900] d If the swCalibrationAccess of a VariableDataPrototype
used in an interface of a sender-receiver port of a SwComponentPrototype is set
to readOnly or readWrite the RTE generator has to provide one reference to a
location in memory where the actual content of the instance specific data of the cor-
responding VariableDataPrototype of the communication can be accessed. c
(SRS_Rte_00153)
To prohibit multiple measurement values for same communication:
(Note that affected VariableDataPrototypes might be specified in same or com-
patible port interfaces.)
[SWS_Rte_03972] d For 1:1 and 1:N sender-receiver communication the RTE shall
provide measurement values taken from sender side if measurement is demanded in
provide and require port. c(SRS_Rte_00153)
[SWS_Rte_03973] d For N:1 intra-ECU sender-receiver communication the RTE shall
provide measurement values taken from receiver side if measurement is demanded in
provide and require ports. c(SRS_Rte_00153)
Note:
See further below for support of queued communication.

[SWS_Rte_03974] d For a VariableDataPrototype with measurement demand

associated with received data of inter-ECU sender-receiver communication the RTE
shall provide only one measurement store reference containing the actual received
data even if several receiver ports demand measurement. c(SRS_Rte_00153)

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[SWS_Rte_07344] d For a VariableDataPrototype with measurement demand

associated with received data of inter-Partition sender-receiver communication the
RTE shall provide only one measurement store reference per partition containing the
actual received data even if several receiver ports demand measurement in the Parti-
tion. c(SRS_Rte_00153)
Client-Server communication
[SWS_Rte_03901] d If the swCalibrationAccess of an ArgumentDataProto-
type used in an interface of a client-server port of a SwComponentPrototype is set
to readOnly the RTE generator has to provide one reference to a location in memory
where the actual content of the instance specific argument data of the communication
can be read. c(SRS_Rte_00153)
To prohibit multiple measurement values for same communication:
(Note that affected ArgumentDataPrototypes might be specified in same or com-
patible port interfaces.)
[SWS_Rte_03975] d For intra-ECU client-server communication the RTE shall provide
measurement values taken from client side if measurement of an ArgumentDataPro-
totypes is demanded by provide and require ports. c(SRS_Rte_00153)
[SWS_Rte_03976] d For inter-ECU client-server communication with the client being
present on same ECU as the RTE, the RTE shall provide measurement values taken
from client side. c(SRS_Rte_00153)
[SWS_Rte_03977] d For inter-ECU client-server communication with the server being
present on same ECU as the RTE, the RTE shall provide measurement values taken
from server if no client present on same ECU as the server is connected with that
server too. c(SRS_Rte_00153)
[SWS_Rte_07349] d For inter-Partition client-server communication with the server
being present on the same ECU as the RTE, the RTE shall provide measurement
values taken from server if no client present on the same Partition as the server is
connected with that server too. c(SRS_Rte_00153)
Note:
When a measurement is applied to a client-server call additional copy code might be
produced so that a zero overhead direct server invocation is no longer possible for this
call.

Mode Switch Communication

[SWS_Rte_06700] d If the swCalibrationAccess of a ModeDeclarationGroup-
Prototype used in an interface of a mode switch port of a SwComponentPro-
totype is set to readOnly the RTE generator has to provide three references to
locations in memory where the current mode, the previous mode and the next mode of
the related mode machine instance can be accessed. c(SRS_Rte_00153)

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The affected ModeDeclarationGroupPrototypes might be used at different ports

with the same or compatible port interfaces. [SWS_Rte_06701] prohibits the occur-
rence of multiple measurement values for the same communication:
[SWS_Rte_06701] d For 1:1 and 1:N mode switch communication the RTE shall pro-
vide measurement values taken from mode manager side if measurement is de-
manded in provide and require port. c(SRS_Rte_00153)
Inter Runnable Variables
[SWS_Rte_03902] d If the swCalibrationAccess of a VariableDataPrototype
in the role implicitInterRunnableVariable or explicitInterRunnable-
Variable is set to readOnly or readWrite the RTE generator has to provide one
reference to a location in memory where the actual content of the Inter Runnable Vari-
able can be accessed for a specific instantiation of the AUTOSAR SWC.
c(SRS_Rte_00153)
PerInstanceMemory
[SWS_Rte_07160] d If the swCalibrationAccess of a VariableDataPrototype
in the role arTypedPerInstanceMemory is set to readOnly or readWrite the RTE
generator has to provide one reference to a location in memory where the actual con-
tent of the arTypedPerInstanceMemory can be accessed for a specific instantiation
of the AUTOSAR SWC.
c(SRS_Rte_00153)
[SWS_Rte_06206] d If the swCalibrationAccess of a VariableDataPrototype
in the role arTypedPerInstanceMemory is set to readOnly or readWrite the RTE
Generator has to provide exactly one reference to a location in memory where the
actual content of the arTypedPerInstanceMemory can be accessed for a specific
instantiation of the Basic Software Module.
c(SRS_Rte_00153)
Nv RAM Block
[SWS_Rte_07174] d If the swCalibrationAccess of a VariableDataPrototype
in the role ramBlock of a NvBlockSwComponentTypes NvBlockDescriptor is
set to readOnly or readWrite the RTE generator has to provide one reference to a
location in memory where the actual content of the Nv RAM Block can be accessed
for a specific instantiation of the AUTOSAR NvBlockSwComponentType.
c(SRS_Rte_00153)
Non Volatile Data communication
[SWS_Rte_07197] d If the swCalibrationAccess of a VariableDataPrototype
used in an NvDataInterface of a non volatile data port of a SwComponentPro-
totype is set to readOnly or readWrite the RTE generator has to provide one
reference to a location in memory where the actual content of the instance specific
data of the corresponding VariableDataPrototype of the communication can be
accessed. c(SRS_Rte_00153)

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To prohibit multiple measurement values for same communication:

(Note that affected VariableDataPrototypes might be specified in same or com-
patible port interfaces.)
[SWS_Rte_07198] d For 1:1 and 1:N non volatile data communication the RTE
shall provide measurement values taken from ramBlock if measurement is de-
manded either in provide port, any require port ([SWS_Rte_07197] or ramBlock
([SWS_Rte_07174]). c(SRS_Rte_00153)
Unconnected ports or compatible interfaces
As stated in section 5.2.7 RTE supports handling of unconnected ports.
Measurement support for unconnected sender-receiver provide ports makes sense
since a port might be intentionally added for monitoring purposes only.
Measurement support for unconnected sender-receiver require ports makes sense
since the measurement is specified on the type level of the Software Component and
therefore independent of the individual usage of the Software Component. In case
of unconnected sender-receiver require ports the measurement shall return the initial
value.
Support for unconnected client-server provide port does not make sense since the
server cannot be called and with this no data can be passed there.
Support for unconnected client-server require port makes sense since the measure-
ment is specified on the type level of the Software Component and therefore inde-
pendent of the individual usage of the Software Component. In case of unconnected
client-server require ports the measurement shall return the actually provided and re-
turned values.
[SWS_Rte_03978] d For sender-receiver communication the RTE generator shall
respect measurement demands enclosed in unconnected provide ports. c
(SRS_Rte_00139, SRS_Rte_00153)
[SWS_Rte_05101] d For sender-receiver communication the RTE generator shall re-
spect measurement demands enclosed in unconnected require ports and deliver the
initial value. c(SRS_Rte_00139, SRS_Rte_00153)
[SWS_Rte_03980] d For client-server communication the RTE generator shall ignore
measurement demands enclosed in unconnected provide ports. c(SRS_Rte_00139,
SRS_Rte_00153)
[SWS_Rte_05102] d For client-server communication the RTE generator shall respect
measurement demands enclosed in unconnected require ports. The behavior shall be
similar as if the require port would be connected and the server does not respond. c
(SRS_Rte_00139, SRS_Rte_00153)
[SWS_Rte_05170] d For client-server communication the RTE generator shall ignore
measurement requests for queued client-server communication. c(SRS_Rte_00139,
SRS_Rte_00153)

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In case the measurement of client-server communication is not possible due

to requirement [SWS_Rte_05170] the McSupportData need to reflect this
(see [SWS_Rte_05172]).
In principle the same thoughts as above are applied to unused VariableDat-
aPrototypes for sender-receiver communication where ports with compatible but
not same interfaces are connected. Its no issue for client-server due to compati-
bility rules for client-server interfaces since in compatible client-server interfaces all
ClientServerOperations have to be present in provide and require port (see AU-
TOSAR SW-C Template [2]).
[SWS_Rte_03979] d For sender-receiver communication the RTE generator shall re-
spect measurement demands of those VariableDataPrototypes in connected
ports when provide and require port interfaces are not the same (but only compat-
ible) even when a VariableDataPrototype in the provide port has no assigned
VariableDataPrototype in the require port.
c(SRS_Rte_00153)
General measurement disabling switch
To support saving of ECU resources for projects where measurement isnt required at
all whereas enclosed AUTOSAR SW-Cs contain SwDataDefProps requiring it, it shall
be possible to switch off support for measurement. This shall not influence support for
calibration (see 4.2.8.3).
[SWS_Rte_03903] d The RTE generator shall have the option to switch off support for
measurement for generated RTE code. This option shall influence complete RTE code
at once. c(SRS_Rte_00153)
There also might be projects in which monitoring of ECU internal behavior is required
but calibration is not.
[SWS_Rte_03904] d The enabling of RTE support for measurement shall be indepen-
dent of the enabling of the RTE support for calibration. c(SRS_Rte_00153)
Queued communication
Measurement of queued communication is not supported yet. Reasons are:
A queue can be empty. Whats to measure then?
Which of the queue entries is the one to take the data from might differ out of
user view?
Only quite inefficient solutions possible because implementation of queues en-
tails storage of information dynamically at different memory locations. So always
additional copies are required.
[SWS_Rte_03950] d RTE generator shall reject configurations where measure-
ment for queued sender-receiver communication is configured. c(SRS_Rte_00153,
SRS_Rte_00018)

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4.2.8.3 Calibration

The RTE and Basic Software Scheduler has to support the allocation of calibration
parameters and the access to them for SW using them. As seen later on for some
calibration methods the RTE and Basic Software Scheduler must contain support SW
too (see 4.2.8.3.5). But in general the RTE and Basic Software Scheduler is not re-
sponsible for the exchange of the calibration data values or the transportation of them
between the ECU and external calibration tools.
The following sections are mentioning only the RTE but this has to be understood in
the context that the support for Calibration is a functionality which affects the Basic
Software Scheduler part of the RTE as well. In case of the Basic Software Scheduler
Generation Phase (see 3.4.1) this functionality might even be provided with out any
other software component related RTE functionality.
With AUTOSAR, a calibration parameter (which the AUTOSAR SW-C template spec-
ification [2] calls ParameterSwComponentType) is instantiated with a Parameter-
DataPrototype that aggregates a SwDataDefProps with properties swCalibra-
tionAccess = readWrite and swImplPolicy = standard. This chapter applies
to this kind of ParameterSwComponentTypes. For other combinations of these prop-
erties, consult the section 4.2.7

4.2.8.3.1 Calibration parameters

Calibration parameters can be defined in ParameterSwComponentTypes, in AU-

TOSAR SW-Cs, NvBlockSwComponentTypes and in Basic Software Modules.
1. ParameterSwComponentTypes dont have an internal behavior but contain
ParameterDataPrototypes and serve to provide calibration parameters used
commonly by several AUTOSAR SW-Cs. The use case that one or several of the
user SW-Cs are instantiated on different ECUs is supported by instantiation of
the ParameterSwComponentType on the affected ECUs too.
Of course several AUTOSAR SW-Cs allocated on one ECU can commonly ac-
cess the calibration parameters of ParameterSwComponentTypes too. Also
several instances of an AUTOSAR SW-Cs can share the same calibration pa-
rameters of a ParameterSwComponentType.
2. Calibration parameters defined in AUTOSAR SW-Cs can only be used inside
the SW-C and are not visible to other SW-Cs. Instance individual and common
calibration parameters accessible by all instances of an AUTOSAR SW-C are
possible.
3. For NvBlockSwComponentTypes it is supported to provide calibration access
to the ParameterDataPrototype defining the romBlock. These values can
not be directly accessed by AUTOSAR SW-Cs but are used to serve as default
values for the NVRAM Block applied via InitBlockCallbackFunction.

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4. Calibration parameters defined in Basic Software Modules can only be used in-
side the defining Basic Software Module and are not visible to other Basic Soft-
ware Modules. In contrast to AUTOSAR SW-Cs, Basic Software Modules can
only define instance specific calibration parameters.
[SWS_Rte_03958] d Several AUTOSAR SW-Cs (and also several instances of AU-
TOSAR SW-Cs) shall be able to share same calibration parameters defined in Param-
eterSwComponentTypes. c(SRS_Rte_00154, SRS_Rte_00159)
[SWS_Rte_07186] d The generated RTE shall initialize the memory objects im-
plementing ParameterDataPrototypes in p-ports of ParameterSwComponent-
Types according the ValueSpecification of the ParameterProvideComSpec
referring the ParameterDataPrototype in the p-port,
if such ParameterProvideComSpec exists and
if no CalibrationParameterValue refers to the FlatInstanceDescrip-
tor associated to the ParameterDataPrototype
This is also applicable if the swImplPolicy = fixed and if the related Parameter-
DataPrototype is implemented as preprocessor define which does not immediately
allocate a memory object. c(SRS_Rte_00154, SRS_Rte_00159)
[SWS_Rte_07029] d The generated RTE shall initialize the memory objects im-
plementing ParameterDataPrototypes in p-ports of ParameterSwComponent-
Types according the ValueSpecification in the role implInitValue of the Cal-
ibrationParameterValue referring the FlatInstanceDescriptor associated
to the ParameterDataPrototype if such CalibrationParameterValue is de-
fined. c(SRS_Rte_00154)
Note: the initialization according [SWS_Rte_07029] and [SWS_Rte_07030] precedes
the initialization values defined in the context of an component type and used in
[SWS_Rte_07185] and [SWS_Rte_07186]. This enables to provide initial values for
calibration parameter instances to:
predefine start values for the calibration process
utilizes the result of the calibration process
take calibration parameter values from previous projects
[SWS_Rte_03959] d If the SwcInternalBehavior aggregates an ParameterDat-
aPrototype in the role perInstanceParameter the RTE shall support the access
to instance specific calibration parameters of the AUTOSAR SW-C. c(SRS_Rte_00154,
SRS_Rte_00158)
[SWS_Rte_05112] d If the SwcInternalBehavior aggregates an ParameterDat-
aPrototype in the role sharedParameter the RTE shall create a common access
to the shared calibration parameter. c(SRS_Rte_00154, SRS_Rte_00159)
[SWS_Rte_07096] d If the BswInternalBehavior aggregates an ParameterDat-
aPrototype in the role perInstanceParameter the Basic Software Scheduler

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shall support the access to instance specific calibration parameters of the Basic Soft-
ware Module. c(SRS_Rte_00154, SRS_Rte_00158)
[SWS_Rte_07185] d The generated RTE and Basic Software Scheduler shall initialize
the memory objects implementing ParameterDataPrototype in the role perIn-
stanceParameter or sharedParameter
if it has a ValueSpecification in the role initValue according to this Val-
ueSpecification and
if no CalibrationParameterValue refer to the FlatInstanceDescriptor
associated to the ParameterDataPrototype
This is also applicable if the swImplPolicy = fixed and if the related Parameter-
DataPrototype is implemented as preprocessor define which does not immediately
allocate a memory object. c(SRS_Rte_00154)
[SWS_Rte_07030] d The generated RTE and Basic Software Scheduler shall initialize
the memory objects implementing ParameterDataPrototypes in the role perIn-
stanceParameter or sharedParameter according the ValueSpecification in
the role the implInitValue of the CalibrationParameterValue referring the
FlatInstanceDescriptor associated to the ParameterDataPrototype if such
CalibrationParameterValue is defined. c(SRS_Rte_00154)
It might be project specific or even project phase specific which calibration parameters
have to be calibrated and which are assumed to be stable. So it shall be selectable
on ParameterSwComponentTypes and AUTOSAR SW-C granularity level for which
calibration parameters RTE shall support calibration.
If an r-port contains a ParameterDataPrototype, the following requirements spec-
ify its behavior if the port is unconnected.
[SWS_Rte_02749] d In case of an unconnected parameter r-port, the RTE shall set the
values of the ParameterDataPrototypes of the r-port according to the initValue
of the r-ports ParameterRequireComSpec referring to the ParameterDataPro-
totype. c(SRS_Rte_00139, SRS_Rte_00159)
If the port is unconnected, RTE expects an init value, see [SWS_Rte_02750].
ParameterDataPrototypes in role romBlock
[SWS_Rte_07033] d If the swCalibrationAccess of a ParameterDataProto-
type in the role romBlock is set to readWrite the RTE generator has to provide
one reference to a location in memory where the actual content of the romBlock can
be accessed. c(SRS_Rte_00154)
[SWS_Rte_07034] d The generated RTE shall initialize any ParameterDataProto-
type in the role romBlock
if it has a ValueSpecification in the role initValue according to this Val-
ueSpecification and

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if no CalibrationParameterValue refer to the FlatInstanceDescriptor

associated to the ParameterDataPrototype
c(SRS_Rte_00154)
[SWS_Rte_07035] d The generated RTE shall initialize the memory objects imple-
menting ParameterDataPrototypes in the role romBlock according the Value-
Specification in the role the implInitValue of the CalibrationParameter-
Value referring the FlatInstanceDescriptor associated to the ParameterDat-
aPrototype if such CalibrationParameterValue is defined. c(SRS_Rte_00154)
ParameterDataPrototype used as romBlock are instantiated according to
[SWS_Rte_07693].
Configuration of calibration support
[SWS_Rte_03905] d It shall be configurable for each ParameterSwComponentType
if RTE calibration support for the enclosed ParameterDataPrototypes is enabled
or not. c(SRS_Rte_00154, SRS_Rte_00156)
[SWS_Rte_03906] d It shall be configurable for each AUTOSAR SW-C if RTE cali-
bration support for the enclosed ParameterDataPrototypes is enabled or not. c
(SRS_Rte_00154, SRS_Rte_00156)
RTE calibration support means the creation of SW as specified in section 4.2.8.3.5
"Data emulation with SW support".

Require ports on ParameterSwComponentTypes dont make sense. Parameter-

SwComponentTypes only have to provide calibration parameters to other Component
types. So the RTE generator shall reject configurations containing require ports at-
tached to ParameterSwComponentTypes. (see section A.13)

4.2.8.3.1.1 Separation of calibration parameters

Sometimes it is required that one or more calibration parameters out of the mass of cal-
ibration parameters of an ParameterSwComponentType respectively an AUTOSAR
SW-C shall be placed in another memory location than the other parameters of the Pa-
rameterSwComponentType respectively the AUTOSAR SW-C. This might be due to
security reasons (separate normal operation from monitoring calibration data in mem-
ory) or the possibility to change calibration data during a diagnosis session (which the
calibration parameter located in NVRAM).
[SWS_Rte_03907] d The RTE generator shall support separation of calibration param-
eters from ParameterSwComponentTypes, AUTOSAR SW-Cs and Basic Software
Modules depending on the ParameterDataPrototype property swAddrMethod. c
(SRS_Rte_00154, SRS_Rte_00158)

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4.2.8.3.2 Support for offline calibration

As described in section 4.2.8.1 when using an offline calibration process measure-

ment is decoupled from providing new calibration parameters to the ECUs SW. During
measurement phase information is collected needed to define to which values the cal-
ibration parameters are to be set best. Afterwards the new calibration parameter set is
brought into the ECU e.g. by using a bootloader.
[SWS_Rte_03971] d The RTE generator shall have the option to switch off all data
emulation support for generated RTE code. This option shall influence complete RTE
code at once. c(SRS_Rte_00154, SRS_Rte_00156)
The term data emulation is related to mechanisms described in section 4.2.8.3.3.
Out of view of RTE the situation is same as when data emulation without SW support
(described in section 4.2.8.3.4) is used:
The RTE is only responsible to provide access to the calibration parameters via the
RTE API as specified in section 5.6. Exchange of ParameterDataPrototype con-
tent is done invisibly for ECU program flow and with this for RTE too.
When no data emulation support is required calibration parameter accesses to param-
eters stored in FLASH could be performed by direct memory read accesses without
any indirection for those cases when accesses are coming out of single instantiated
AUTOSAR SW-Cs or from Basic Software Modules. Nevertheless its not goal of this
specification to require direct accesses since this touches implementation. It might be
ECU HW dependent or even be project dependent if other accesses are more efficient
or provide other significant advantages or not.

4.2.8.3.3 Support for online calibration: Data emulation

To allow online calibration it must be possible to provide alternative calibration param-

eters invisible for application. The mechanisms behind are described here. We talk of
data emulation.
In the following several calibration methods are described:
1. Data emulation without SW support and
2. several methods of data emulation with SW-support.
The term data emulation is used because the change of calibration parameters is
emulated for the ECU SW which uses the calibration data. This change is invisible for
the user-SW in the ECU.

RTE is significantly involved when SW support is required and has to create calibration
method specific SW. Different calibration methods means different support in Basic
SW which typically is ECU integrator specific. So it does not make sense to support
DIFFERENT data emulation with SW support methods in ANY one RTE build. But

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it makes sense that the RTE supports direct access (see section 4.2.8.3.4) for some
AUTOSAR SW-Cs resp. ParameterSwComponentTypes resp. Basic Software Mod-
ules and one of the data emulation with SW support methods (see section 4.2.8.3.5)
for all the other AUTOSAR SW-Cs resp. ParameterSwComponentTypes resp. Basic
Software Modules at the same time.
[SWS_Rte_03909] d The RTE shall support only one of the data emulation with SW
support methods at once. c(SRS_Rte_00154, SRS_Rte_00156)

4.2.8.3.4 Data emulation without SW support (direct access)

For "online calibration" (see section 4.2.8.1) the ECU is provided with additional
hardware which consists of control logic and memory to store modified calibration
parameters in. During ECU execution the brought in control logic redirects memory
accesses to new bought in memory whose content is modified by external tooling
without disturbing normal ECU program flow. Some microcontrollers contain features
supporting this. A lot of smaller microcontrollers dont. So this methods is highly HW
dependent.

To support these cases the RTE doesnt have to provide e.g. a reference table like
described in section 4.2.8.3.5. Exchange of ParameterDataPrototype content is
done invisibly for program flow and for RTE too.
[SWS_Rte_03942] d The RTE generator shall have the option to switch off data emu-
lation with SW support for generated RTE code. This option shall influence complete
RTE code at once. c(SRS_Rte_00154, SRS_Rte_00156)

4.2.8.3.5 Data emulation with SW support

In case "online calibration" (see section 4.2.8.1) is required, quite often data emulation
without support by special SW constructs isnt possible. Several methods exist, all
have the consequence that additional need of ECU resources like RAM, ROM/FLASH
and runtime is required.
Data emulation with SW support is possible in different manners. During calibration
process in each of these methods modified calibration data values are kept typically in
RAM. Modification is controlled by ECU external tooling and supported by ECU internal
SW located in AUTOSAR basic SW or in complex driver.
If calibration process isnt active the accessed calibration data is originated in
ROM/FLASH respectively in NVRAM in special circumstances (as seen later on).
Since multiple instantiation is to be supported several instances of the same
ParameterDataPrototypes have to be allocated. Because the RTE is the only
one SW in an AUTOSAR ECU able to handle the different instances the access to these

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calibration parameters can only be handled by the RTE. So the RTE has to provide
additional SW constructs required for data emulation with SW support for calibration.
However the RTE doesnt know which of the ECU functionality shall be calibrated dur-
ing a calibration session. To allow expensive RAM to be reused to calibrate different
ECU functionalities in one or several online calibration sessions (see 4.2.8.1) in case of
the single and double pointered methods for data emulation with SW support described
below the RTE has only to provide the access to ParameterDataPrototypes dur-
ing runtime but allowing other SW (a BSW module or a complex driver) to redirect the
access to alternative calibration parameter values (e.g. located in RAM) invisibly for
application.
The RTE is neither the instance to supply the alternative values for ParameterDat-
aPrototypes nor in case of the pointered methods for data emulation with SW sup-
port to do the redirection to the alternative values.
[SWS_Rte_03910] d The RTE shall support data emulation with SW support for cali-
bration. c(SRS_Rte_00154, SRS_Rte_00156)
[SWS_Rte_03943] d The RTE shall support these data emulation methods with SW
support:
Single pointered calibration parameter access
further called "single pointered method"
Double pointered calibration parameter access further called "double pointered
method"
Initialized RAM parameters further called "initRAM parameter method"
c(SRS_Rte_00154, SRS_Rte_00156)
Please note that the support data emulation methods is applicable for calibration pa-
rameters provided for software components as well as calibration parameters provided
for basic software modules.
ParameterElementGroup
To save RAM/ROM/FLASH resources in single pointered method and double point-
ered method ParameterDataPrototype allocation is done in groups. One entry
of the calibration reference table references the begin of a group of Parameter-
DataPrototypes. For better understanding of the following, this group is called
ParameterElementGroup (which is no term out of the AUTOSAR SW-C template
specification [2]). One ParameterElementGroup can contain one or several
ParameterDataPrototypes.

[SWS_Rte_03911] d If data emulation with SW support is enabled, the RTE gen-

erator shall allocate all ParameterDataPrototypes marked with same property
swAddrMethod of one instance of a ParameterSwComponentType consecutively.
Together they build a separate ParameterElementGroup. c(SRS_Rte_00154,
SRS_Rte_00156, SRS_Rte_00158)

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[SWS_Rte_03912] d If data emulation with SW support is enabled, the RTE shall

guarantee that all non-shared ParameterDataPrototypes marked with same prop-
erty swAddrMethod of an AUTOSAR SWC instance are allocated consecutively.
Together they build a separate ParameterElementGroup. c(SRS_Rte_00154,
SRS_Rte_00158)
[SWS_Rte_05194] d If data emulation with SW support is enabled, the RTE shall
guarantee that all shared ParameterDataPrototypes marked with same property
swAddrMethod of an AUTOSAR SWC type are allocated consecutively. Together they
build a separate ParameterElementGroup. c(SRS_Rte_00154, SRS_Rte_00158)
It is not possible to access same calibration parameter inside of a ParameterSwCom-
ponentType via several ports. This is a consequence of the need to support the
use case that a ParameterSwComponentType shall be able to contain several cali-
bration parameters derived from one ParameterDataPrototype which is contained
in one interface applied to several ports of the ParameterSwComponentType. Us-
ing only the ParameterDataPrototype names for the names of the elements of a
ParameterElementGroup would lead to a name clash since then several elements
with same name would have to created. So port prototype and ParameterDataPro-
totype name are concatenated to specify the ParameterElementGroup member
names.
This use case cannot be applied to AUTOSAR SW-C internal calibration parameters
since they cannot be accessed via AUTOSAR ports.
[SWS_Rte_03968] d The names of the elements of a ParameterElementGroup
derived from a ParameterSwComponentType shall be <port>_<element> where
<port> is the short-name of the provided AUTOSAR port prototype and <element>
the short-name of the ParameterDataPrototype within the ParameterInter-
face categorizing the PPort. c(SRS_Rte_00154, SRS_Rte_00156)

4.2.8.3.5.1 Single pointered method

There is one calibration reference table in RAM with references to one or several
ParameterElementGroups. Accesses to calibration parameters are indirectly per-
formed via this reference table.
Action during calibration procedure e.g. calibration parameter value exchange is not
focus of this specification. Nevertheless an example is given for better understanding.
Example how the exchange of calibration parameters could be done for single point-
ered method:
1. Fill a RAM buffer with the modified calibration parameter values for complete
ParameterElementGroup
2. Modify the corresponding entry in the calibration reference table so that a redi-
rection to new ParameterElementGroup is setup

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Now calibration parameter accesses deliver the modified values.

Figure 4.25 illustrates the method.

Figure 4.25: ParameterElementGroup in single pointered method context

[SWS_Rte_03913] d If data emulation with SW support with single pointered method

is enabled, the RTE generator shall create a table located in RAM with references to
ParameterElementGroups. The type of the table is an array of void pointers. c
(SRS_Rte_00154, SRS_Rte_00156)
One reason why in this approach the calibration reference table is realized as an array
is to make ECU internal reference allocation traceable for external tooling. Another is to
allow a Basic-SW respectively a complex driver to emulate other calibration parameters
which requires the standardization of the calibration reference table too.
[SWS_Rte_03947] d If data emulation with SW support with single method
is enabled the name (the label) of the calibration reference table shall be
<RteParameterRefTab>. c(SRS_Rte_00154, SRS_Rte_00156)
Calibration parameters located in NVRAM are handled same way (also see section
4.2.8.3.6).
[SWS_Rte_03936] d If data emulation with SW support with single or double point-
ered method is enabled and calibration parameter respectively a ParameterEle-
mentGroups is located in NVRAM the corresponding calibration reference table en-
try shall reference the PerInstanceMemory working as the NVRAM RAM buffer. c
(SRS_Rte_00154, SRS_Rte_00156, SRS_Rte_00157)

4.2.8.3.5.2 Double pointered method

There is one calibration reference table in ROM respectively Flash with references
to one or several ParameterElementGroups. Accesses to calibration parameters
are performed through a double indirection access. During system startup the base
reference is initially filled with a reference to the calibration reference table.

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Action during calibration procedure e.g. calibration parameter value exchange is not
focus of this specification. Nevertheless an example is given for better understanding.
Example how the exchange of calibration parameters could be done for double point-
ered method:
1. Copy the calibration reference table into RAM
2. Fill a RAM buffer with modified calibration parameter values for complete Param-
eterElementGroup
3. Modify the corresponding entry in the RAM copy of the reference table so that a
redirection to new ParameterElementGroup is setup
4. Change the content of the base reference so that it references the calibration
reference table copy in RAM.
Now calibration parameter accesses deliver the modified values.

Figure 4.26: ParameterElementGroup in double pointered method context

[SWS_Rte_03914] d If data emulation with SW support with double pointered method

is enabled, the RTE generator shall create a table located in ROM respectively FLASH
with references to ParameterElementGroups. The type of the table is an array of
void pointers. c(SRS_Rte_00154, SRS_Rte_00156)
Figure 4.26 illustrates the method.
To allow a Basic-SW respectively a complex driver to emulate other calibration param-
eters the standardization of the base reference is required.
[SWS_Rte_03948] d If data emulation with SW support with double method is enabled
the name (the label) of the calibration base reference shall be <RteParameterBase>.
This label and the base reference type shall be exported and made available to other
SW on same ECU.
c(SRS_Rte_00154, SRS_Rte_00156)
Calibration parameters located in NVRAM are handled same way (also see section
4.2.8.3.6).

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For handling of calibration parameters located in NVRAM with single or double point-
ered method see [SWS_Rte_03936] in section 4.2.8.3.5.1. General information is
found in section 4.2.8.3.6).

4.2.8.3.5.3 InitRam parameter method

For each instance of a ParameterDataPrototype the RTE generator creates a cali-

bration parameter in RAM and a corresponding value in ROM/FLASH. During startup of
RTE the calibration parameter values of ROM/FLASH are copied into RAM. Accesses
to calibration parameters are performed through a direct access to RAM without any
indirection.
Action during calibration procedure e.g. calibration parameter value exchange is not
focus of this specification. Nevertheless an example is given for better understanding:
An implementation simply would have to exchange the content of the RAM cells during
runtime.
[SWS_Rte_03915] d If data emulation with SW support with initRam parameter method
is enabled, the RTE generator shall create code guaranteeing that
1. calibration parameters are allocated in ROM/Flash and
2. a copy of them is allocated in RAM made available latest during RTE startup
for those ParameterDataPrototypes for which calibration support is enabled. c
(SRS_Rte_00154, SRS_Rte_00156)
RTE access

Copy

... ...
Parameter in Copied parameter in
ROM / FLASH RAM
Figure 4.27: initRam Parameter method setup

Figure 4.27 illustrates the method.

A special case is the access of ParameterDataPrototypes instantiated in NVRAM

(also see section 4.2.8.3.6). In this no extra RAM copy is required because a RAM
location containing the calibration parameter value still exists.

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[SWS_Rte_03935] d If data emulation with SW support with initRam parameter method

is enabled, the RTE generator shall create direct accesses to the PerInstanceMem-
ory working as RAM buffer for the calibration parameters defined to be in NVRAM. c
(SRS_Rte_00154, SRS_Rte_00156)

4.2.8.3.5.4 Arrangement of a ParameterElementGroup for pointered methods

For data emulation with SW support with single or double pointered methods the RTE
has to guarantee access to each single member of a ParameterElementGroup for
source code and object code delivery independent if the member is a primitive or a
composite data type. For this the creation of a record type for a ParameterEle-
mentGroup was chosen.
[SWS_Rte_03916] d One ParameterElementGroup shall be realized as one record
type. c(SRS_Rte_00154, SRS_Rte_00156)
The sequence order of ParameterDataPrototype in a ParameterElementGroup
and the order of ParameterElementGroups in the reference table will be docu-
mented by the RTE Generator by the means of the McSwEmulationMethodSupport,
see 4.2.8.4.4.

4.2.8.3.5.5 Further definitions for pointered methods

As stated in section 4.2.8.3.1.1, dependent of the value of property swAddrMethod

calibration parameters shall be separated in different memory locations.
[SWS_Rte_03908] d If data emulation with SW support with single or double point-
ered method is enabled the RTE shall create a separate instance specific Parame-
terElementGroup for all those ParameterDataPrototypes with a common value
of the appended property swAddrMethod. Those ParameterDataPrototypes
which have no property swAddrMethod appended, shall be grouped together too.
c(SRS_Rte_00154, SRS_Rte_00156, SRS_Rte_00158)
To allow traceability for external tooling the sequence order of ParameterDataPro-
totype in a ParameterElementGroup and the order of ParameterElement-
Groups in the reference table will be documented by the RTE Generator by the means
of the McSwEmulationMethodSupport, see 4.2.8.4.4.

4.2.8.3.5.6 Calibration parameter access

Calibration parameters are derived from ParameterDataPrototypes. The RTE has

to provide access to each calibration parameter via a separate API call.
API is specified in 5.6.

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[SWS_Rte_03922] d If data emulation with SW support and single or double pointered

method is enabled the RTE generator shall export the label of the calibration reference
table. c(SRS_Rte_00154, SRS_Rte_00156)
[SWS_Rte_03960] d If data emulation with SW support and double pointered method
is enabled the RTE generator shall export the label and the type of the calibration base
reference. c(SRS_Rte_00154, SRS_Rte_00156)
[SWS_Rte_03932] d If data emulation with SW support with single pointered method
is enabled the RTE generator shall create API calls using single indirect access via
the calibration reference table for those ParameterDataPrototypes which are in
a ParameterElementGroup for which calibration is enabled. c(SRS_Rte_00154,
SRS_Rte_00156)
[SWS_Rte_03933] d If data emulation with SW support with double pointered method
is enabled the RTE generator shall create API calls using double indirection access via
the calibration base reference and the calibration reference table for those Parame-
terDataPrototypes which are in a ParameterElementGroup for which calibra-
tion is enabled. c(SRS_Rte_00154, SRS_Rte_00156)
[SWS_Rte_03934] d If data emulation with SW support with double pointered method
is enabled, the calibration base reference shall be located in RAM. c(SRS_Rte_00154,
SRS_Rte_00156)

4.2.8.3.5.7 Calibration parameter allocation

Since only the RTE knows which instances of AUTOSAR SW-Cs, ParameterSwCom-
ponentTypes and Basic Software Modules are present on the ECU the RTE has
to allocate the calibration parameters and reserve memory for them. This approach
is also covering multiple instantiated object code integration needs. So memory for
instantiated ParameterDataPrototypes is neither provided by ParameterSwCom-
ponentTypes nor by AUTOSAR SW-C.
Nevertheless AUTOSAR SW-Cs and Basic Software Modules can define calibration
parameters which are not instantiated by RTE. These are described by Parameter-
DataPrototypes in the role constantMemory. Further on the RTE can not imple-
ment any software support for data emulation for such calibration parameters. Hence
those kind of calibration parameters are not described in the generated McSupportData
of the RTE (see 4.2.8.4).
[SWS_Rte_03961] d The RTE shall allocate the memory for calibration parameters. c
(SRS_Rte_00154, SRS_Rte_00156)
A ParameterDataPrototype can be defined to be instance specific or can be
shared over all instances of an AUTOSAR SW-C or a ParameterSwComponent-
Type. The input for the RTE generator contains the values the RTE shall apply to the
calibration parameters.

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To support online and offline calibration (see section 4.2.8.1) all parameter values for
all instances have to be provided.
Background:
For online calibration often initially the same default values for calibration param-
eters can be applied. Variation is then handled later by post link tools. Initial
ECU startup is not jeopardized. This allows the usage of a default value e.g. by
AUTOSAR SW-C or ParameterSwComponentType supplier for all instances of
a ParameterDataPrototype.
On the other hand applying separate default values for the different instances of
a ParameterDataPrototype will be required often for online calibration too, to
make a vehicle run initially. This requires additional configuration work e.g. for
integrator.
Offline calibration based on new SW build including new RTE build and com-
pilation process requires all calibration parameter values for all instances to be
available for RTE.
Shared ParameterDataPrototypes
[SWS_Rte_03962] d For accesses to a shared ParameterDataPrototype the RTE
API shall deliver the same one value independent of the instance the calibration pa-
rameter is assigned to. c(SRS_Rte_00154, SRS_Rte_00156)
[SWS_Rte_03963] d The calibration parameter of a shared ParameterDat-
aPrototype shall be stored in one memory location only. c(SRS_Rte_00154,
SRS_Rte_00156)
Requirements [SWS_Rte_03962] and [SWS_Rte_03963] are to guarantee that only
one physical location in memory has to be modified for a change of a shared Param-
eterDataPrototype. Otherwise this could lead to unforeseeable confusion.
Multiple locations are possible for calibration parameters stored in NVRAM. But there
a shared ParameterDataPrototype is allowed to have only one logical data too.

Instance specific ParameterDataPrototypes

[SWS_Rte_03964] d For accesses to an instance specific ParameterDataProto-
type the RTE API shall deliver a separate calibration parameter value for each in-
stance of a ParameterDataPrototype. c(SRS_Rte_00154, SRS_Rte_00156)
[SWS_Rte_03965] d For an instance specific ParameterDataPrototype the cali-
bration parameter value of each instance of the ParameterDataPrototype shall be
stored in a separate memory location. c(SRS_Rte_00154, SRS_Rte_00156)
Usage of swAddrMethod
SwDataDefProps contain the optional property swAddrMethod. It contains meta
information about the memory section in which a measurement data store resp. a
calibration parameter shall be allocated in. This abstraction is needed to support the
reuse of unmodified AUTOSAR SW-Cs resp. ParameterSwComponentTypes in

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different projects but allowing allocation of measurement data stores resp. calibration
parameters in different sections.
Section usage typically depends on availability of HW resources. In one project the
micro controller might have less internal RAM than in another project, requiring that
most measurement data have to be placed in external RAM. In another project one
addressing method (e.g. indexed addressing) might be more efficient for most of the
measurement data - but not for all. Or some calibration parameters are accessed
less often than others and could be - depending on project specific FLASH availability
- placed in FLASH with slower access speed, others in FLASH with higher access
speed.

[SWS_Rte_03981] d The memory section used to store measurement values in shall

be the memory sections associated with the swAddrMethod enclosed in the Sw-
DataDefProps of a measurement definition. c(SRS_Rte_00153)
Since its measurement data obviously this must be in RAM.
[SWS_Rte_03982] d The memory section used to store calibration parameters in shall
be the memory sections associated with the swAddrMethod enclosed in the Sw-
DataDefProps of a calibration parameter definition. c(SRS_Rte_00153)

4.2.8.3.6 Calibration parameters in NVRAM

Calibration parameters can be located in NVRAM too. One use case for this is to have
the possibility to modify calibration parameters via a diagnosis service without need for
special calibration tool.
To allow NVRAM calibration parameters to be accessed, NVRAM with statically allo-
cated RAM buffer in form of PIM memory for the calibration parameters has to be de-
fined or the ramBlock of a NvBlockSwComponentType defines readWrite access
for the MCD system. Please see as well [SWS_Rte_07174] and [SWS_Rte_07160].
Note:
As the NVRAM Manager might not be able to access the PerInstanceMemory
across core boundaries in a multi core environment, the support of Calibration pa-
rameters in NVRAM for multi core controllers is limited. See also note in 4.2.9.1.

4.2.8.3.7 Multiple calibration parameters instances

In complex systems the situation occur that calibration parameter values may depend
on the configuration of the vehicle due to functional side effects. The difficulty is that
those dependencies are typically detected after design of the software components and
shall not change the software component design. In addition the overall ECU SW has
to support all vehicle variants and therefore the detection and selection of the concrete
vehicle variant needs to be done post build.

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[SWS_Rte_06815] d The RTE Generator shall provide one separate memory location
per FlatInstanceDescriptor pointing to the identical ParameterDataProto-
type instance in the root software composition. c(SRS_Rte_00154, SRS_Rte_00191)
Thereby the FlatInstanceDescriptor needs to have different postBuildVari-
antConditions as described in [constr_3114]. As a consequence at most one lo-
cation in memory location created according [SWS_Rte_06815] can be active in a
specific post build variant. This value needs to be accessed by the according RTE
APIs Rte_CData and Rte_Prm accessing parameters.
[SWS_Rte_06816] d For accesses to a ParameterDataPrototype the RTE API
shall deliver the value of the memory location which belongs to the currently selected
post build variant. c(SRS_Rte_00154, SRS_Rte_00156, SRS_Rte_00191)
In order to ensure the functionality of Rte_CData and Rte_Prm depending on post
build variability it needs to be ensured, that exactly one FlatInstanceDescriptor
is selected in a specific post build variant when the RTE generator creates an RTE Post
Build Data Set, see section 3.6.
The binding of the post build variability is done at the call of SchM_Init according the
passed post build data set as described in sections section 4.7.2 and section 5.3.10
Please note that the requirements [SWS_Rte_07029] and [SWS_Rte_07030] also
apply in this scenario and therefore the different memory locations due to multiple
FlatInstanceDescriptors can get different initial values.
The following example shall illustrate the usage of post build variant FlatIn-
stanceDescriptors in combination with multiple instantiation. The raw ARXML is
listed in the section F.5.
In the given configuration a ParameterSwComponentType PSWC is defined with on
PPortPrototype EP typed by the ParameterInterface EP. The root software com-
position defines two SwComponentPrototypes SWC_PA and SWC_PB.
The ApplicationSwComponentType ASWC defines RPortPrototype EP, a
perInstanceParameter PIP and a sharedParameter SP The root software
composition defines two SwComponentPrototypes SWC_A and SWC_B and there-
fore two component instances for the component type ASWC exist. PPortPrototype
EP of SWC_PA is connected to RPortPrototype EP of SWC_A, PPortPrototype
EP of SWC_PB is connected to RPortPrototype EP of SWC_B. (not shown in the
figure 4.28)

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Figure 4.28: Example of component model

When the feature of multiple FlatInstanceDescriptors per ParameterDat-

aPrototype is NOT applied the following locations in memory and access by Rte
APIs would result:

Figure 4.29: Resulting memory location of component model

Please note that the resulting names of the memory locations are not standardized but
the applied pattern shall illustrate to which information in the input model they belong
to. Assuming now following configuration in the Flat Map:
SWC_A_PIP_Z0 {depends on PostBuildVariantCriterion Z= 0}
SWC_A_PIP_Z1 {depends on PostBuildVariantCriterion Z = 1}
SWC_B_PIP
SWC_A_SWC_B_SP_Z0 {depends on PostBuildVariantCriterion Z= 0}
SWC_A_SWC_B_SP_Z1 {depends on PostBuildVariantCriterion Z= 1}
SWC_PA_EP_Prm1_Z0 {depends on PostBuildVariantCriterion Z= 0}
SWC_PA_EP_Prm1_Z1 {depends on PostBuildVariantCriterion Z= 1}
SWC_PB_EP_Prm1

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Figure 4.30: Resulting memory location of component model

There are different possibility to implement this mechanism. Nevertheless there are
cross dependencies to the requirements concerning Data emulation with SW support
in section 4.2.8.3.5.
One possibility is to create an array of parameter values which contains one array el-
ement for each different Post Build Variant. The used index for this parameter value
array in the relate RTE API is determined by the chosen variant in the post build con-
figuration of the RTE and indexes the active array element. With this approach its
easier to combine multiple calibration data instances with the Data emulation with SW
support feature since the number of ParameterElementGroups are not changed.
An other approach is to create one base pointer per identical combination of post-
BuildVariantConditions applied to calibration parameters. The related calibra-
tion parameters are grouped into a structure and for each combination of postBuild-
VariantConditions one instance of the structure is created. The base pointer is
initialized according chosen variant in the post build configuration of RTE and points to
the active structure instance.

4.2.8.4 Generation of McSupportData

The RTE Generator supports the definition, allocation and access to measurement
and calibration data for Software Components as well as for Basic Software. The
specific support of measurement and calibration tools however is neither in the focus
of the RTE Generator nor AUTOSAR. This would require the generation of an "A2L"-
file (like specified in [20]) which is the standard in this domain but out of the focus of
AUTOSAR.
The RTE Generator however shall support an intermediate exchange format called
McSupportData which is building the bridge between the ECU software and the fi-
nal "A2L"-file needed by the measurement and calibration tools. The details about

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the McSupportData format and the involved methodology are described in the Basic
Software Module Description Template document [9].
In this section the requirements on the RTE Generator are collected which elements
shall be provided in the McSupportData element.

4.2.8.4.1 Export of the McSupportData

Figure 4.31 shows the structure of the McSupportData element. The McSupport-
Data element and its sub-content is part of the Implementation element. In case
of the RTE this is the BswImplementation element which is generated / updated by
the RTE Generator in the Generation Phase (see [SWS_Rte_05086] in chapter 3.4.2).
[SWS_Rte_05118] d The RTE Generator in Generation Phase shall create the McSup-
portData element as part of the BswImplementation description of the generated
RTE. c(SRS_Rte_00189)

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ARElement +ecucValue ARElement

atpVariation
EcucModuleConfigurationValues EcucValueCollection
1..*
0..1
+moduleDescription

BswImplementation atpVariation Tags:

vh.latestBindingTime =
atpVariation Tags: preCompileTime
vh.latestBindingTime = +ecuExtract 1
systemDesignTime
ARElement
AtpStructureElement
ARElement ARElement System
Implementation SwSystemconstantValueSet

+measurableSystemConstantValues 0..*
atpVariation,atpSplitable

atpSplitable +rootSoftwareComposition 0..1

+mcSupport 0..1 AtpPrototype

Identifiable
McSupportData RootSwCompositionPrototype

atpSplitable

+flatMap 0..1
atpVariation Tags:
atpVariation,atpSplitable ARElement
vh.latestBindingTime =
AtpBlueprint
preCompileTime
AtpBlueprintable
atpVariation Tags: FlatMap
atpVariation vh.latestBindingTime =
atpVariation,atpSplitable
postBuild
atpVariation,atpSplitable
+mcParameterInstance +mcVariableInstance
+emulationSupport 0..* 0..* 0..* +instance 1..*

Identifiable Identifiable
McSwEmulationMethodSupport
McDataInstance FlatInstanceDescriptor
+ category :Identifier +flatMapEntry
+ shortLabel :Identifier + arraySize :PositiveInteger [0..1] + role :Identifier [0..1]
+ displayIdentifier :McdIdentifier [0..1] 0..1
+ role :Identifier [0..1]
atpVariation + symbol :SymbolString [0..1]
+mcDataAssignment
+subElement RoleBasedMcDataAssignment
0..* {ordered} 0..*
+mcDataInstance + role :Identifier [0..1]

0..*

0..1
+resultingProperties 0..1
+resultingRptSwPrototypingAccess
atpVariation
SwDataDefProps RptSwPrototypingAccess

+ additionalNativeTypeQualifier :NativeDeclarationString [0..1] + rptHookAccess :RptAccessEnum

+ displayFormat :DisplayFormatString [0..1] + rptReadAccess :RptAccessEnum
+ rptWriteAccess :RptAccessEnum A
+ stepSize :Float [0..1]
+ swAlignment :AlignmentType [0..1]
+ swCalibrationAccess :SwCalibrationAccessEnum [0..1]
enumeration enumeration
+ swImplPolicy :SwImplPolicyEnum [0..1]
RptAccessEnum SwCalibrationAccessEnum
+ swIntendedResolution :Numerical [0..1]
+ swInterpolationMethod :Identifier [0..1] none readOnly
+ swIsVirtual :Boolean [0..1] protected notAccessible
atpVariation enabled readWrite
+ swValueBlockSize :Numerical [0..1]

enumeration enumeration
RptPreparationEnum RptEnablerImplTypeEnum

none none
rptLevel1 rptEnablerRam
rptLevel2 rptEnablerRom
rptLevel3 rptEnablerRamAndRom

Figure 4.31: Overview of the McSupportData element

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The individual measurable and calibratable data is described using the element Mc-
DataInstance. This is aggregated from McSupportData in the role mcVariable-
Instance (for measurement) or mcParameterInstance (for calibration).
Usage of the FlatMap
The FlatMap is part of the Ecu Extract of System Description and contains a collection
of FlatInstanceDescriptor elements. The details of the FlatMap are described
in the Specification of the System Template [8].
In particular the FlatMap may be request several parameter instances for the identical
ParameterDataPrototype as described in section 4.2.8.3.7.
Common attributes of McDataInstance
The element McDataInstance specifies one element of the McSupportData. The
following requirement specify common attributes which shall to be filled in a harmo-
nized way.
[SWS_Rte_05130] d The RTE Generator shall use the shortName of the
FlatInstanceDescriptor as the shortName of the McDataInstance. c
(SRS_Rte_00189)
[SWS_Rte_03998] d The RTE Generator shall use the AliasNameAssign-
ment.shortLabel referencing the according FlatInstanceDescriptor as the
displayIdentifier of the McDataInstance. c(SRS_Rte_00189)
[SWS_Rte_05131] d If the input element (e.g. ApplicationDataType or Im-
plementationDataType) has a category specified the category value shall be
copied to the McDataInstance element. c(SRS_Rte_00189)
[SWS_Rte_05132] d If the input element (e.g. ApplicationDataType or Imple-
mentationDataType) specifies an array, the attribute arraySize of McDataIn-
stance shall be set to the size of the array. c(SRS_Rte_00189)
[SWS_Rte_05133] d If the input element (e.g. ApplicationDataType or Im-
plementationDataType) specifies a record, the McDataInstance shall aggre-
gate the record elements parts as subElements of type McDataInstance. c
(SRS_Rte_00189)
[SWS_Rte_05119] d The McSupportData element and its sub-structure shall be self-
contained in the sense that there is no need to deliver the whole upstream descriptions
of the ECU (including the ECU Extract, Software Component descriptions, Basic Soft-
ware Module descriptions, ECU Configuration Values descriptions, Flat Map, etc.) in
order to later generate the final "A2L"-file. This means that the RTE Generator has
to copy the required information from the upstream descriptions into the McSupport-
Data element. c(SRS_Rte_00189)
[SWS_Rte_05129] d The RTE Generator in Generation Phase shall export the effec-
tive SwDataDefProps (including all of the referenced and aggregated sub-elements
like e.g. CompuMethod or SwRecordLayout) in the role resultingProperties
for each McDataInstance after resolving the precedence rules defined in the SW-

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Component Template [2] chapter Properties of Data Definitions. Thereby the Im-
plementationDataType properties compuMethod and dataConstraint are not
taken in consideration for effective SwDataDefProps of the McDataInstance due
to their refinement nature of C and AI. c(SRS_Rte_00189)
[SWS_Rte_05135] d If a ParameterDataPrototype is associated with a Param-
eterAccess the corresponding SwDataDefProps and their sub-structure shall be
exported. c(SRS_Rte_00189)
For each flatMapEntry referencing to measurable or calibratible data prototype or
measureable ModeDeclarationGroupPrototype the McDataInstance shall be
generated in the McSupportData. Thereby the effected SwDataDefProps shall be
taken from the data prototype according the precedence rules defined in the SWCT.
[SWS_Rte_08313] d The RTE Generator shall create McDataInstance element(s)
in the McSupportData for each measurable or calibratible DataPrototype / Mod-
eDeclarationGroupPrototype referenced by a FlatInstanceDescriptor. c
(SRS_Rte_00189)
Explanation: In case of connected ports it may occur that the DataPrototype in the
DataInterface of the PPortPrototype and the DataPrototype in the DataInterface
of the RPortPrototype are referenced by FlatInstanceDescriptors. In this
case its intended to get two McDataInstance in order to access the value by MCD
system with two different names and may be with two different scaling (typically offset
and resolution).
In case of composite data FlatInstanceDescriptors may point to one or several
ApplicationCompositeElementDataPrototypes in order to define a individual
name for each record or array element. Thereby it is even possible that a FlatIn-
stanceDescriptor exists for the "whole" DataPrototype typed by an Appli-
cationCompositeDataType and additional FlatInstanceDescriptors exist for
the ApplicationCompositeElementDataPrototypes of such DataPrototype.
In this case a McDataInstance as child of McSupportData exists due to
the FlatInstanceDescriptors for the "whole" DataPrototype and addi-
tional McDataInstances as child of McSupportData exists for each FlatIn-
stanceDescriptor pointing to a ApplicationCompositeElementDataProto-
types in the "whole" DataPrototypes type.
[SWS_Rte_08314] d If the input element is typed by an ApplicationDataType the
subElements structure of the McDataInstance is determined by the Applica-
tionDataType. This means
in case of ApplicationRecordDataType the number and shortName
of the subElement is determined by the ApplicationRecordElement if
[SWS_Rte_05133] and [SWS_Rte_08316] is applied,
in case of ApplicationArrayDataType the number of the subElements is
determined by the ApplicationArrayElement if [SWS_Rte_08315] is ap-
plied,

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in case of a ApplicationPrimitiveDataType, inclusive compound primi-

tives, no subElements are applicable.
c(SRS_Rte_00189)
[SWS_Rte_08315] d If the input element (e.g. ApplicationDataType or Imple-
mentationDataType) specifies an array, the McDataInstance shall aggregate
subElementss for each array element. The McDataInstance.subElements.sym-
bol shall express the array index in the C-notation. (e.g. [0], [4]). c(SRS_Rte_00189)
[SWS_Rte_08316] d If the input element (e.g. ApplicationDataType or Imple-
mentationDataType) specifies a record and no FlatInstanceDescriptor is de-
fined for the record element, the McDataInstance.subElement shortName shall be
set copied either from the related ApplicationRecordElement. Or from the Im-
plementationDataTypeElement if no ApplicationDataType is typing the Dat-
aPrototype. The McDataInstance.subElement.symbol is set to the related Im-
plementationDataTypeElement.shortName c(SRS_Rte_00189)
General handling of the symbol attribute: The concatenation of all symbol strings start-
ing from the root element over the hierarchy of McDataInstances shall represent
the full combined symbol in the programming language for all hierarchy levels in the
McDataInstance tree. When the concatenation is applied the subElements of Mc-
DataInstances of category STRUCTURE are separated by a dot.
[SWS_Rte_08317] d The RTE Generator shall document the Rte internal grouping
of measurement and calibration data in composite data datatypes in each symbol at-
tribute of the McDataInstances representing the data which is grouped.
This means the RTE Generator has to document the insertion of structures for Rte
internal purpose in the symbol attribute of the related McDataInstance. For in-
stance if the Rte groups a set of measurable inside a Rte internal structure (here
called RteInternalBuffer) the McDataInstance.symbol of the first measurable child
element carries the information about the internal structure element. e.g. Mc-
DataInstance.shortName: "MyMeasurable" McDataInstance.symbol: "RteIn-
ternalBuffer.measurable1" c(SRS_Rte_00189)

4.2.8.4.2 Export of Measurement information

Sender-Receiver communication
[SWS_Rte_05120] d If the swCalibrationAccess of a VariableDataPrototype
used in an interface of a sender-receiver port of a SwComponentPrototype is set
to readOnly or readWrite and RteMeasurementSupport is set to true the RTE
Generator shall create a McDataInstance element with
symbol set to the C-symbol name used for the allocation (see also
[SWS_Rte_03900])

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flatMapEntry referencing to the corresponding FlatInstanceDescriptor

element of the VariableDataPrototype
c(SRS_Rte_00153, SRS_Rte_00189)
Client-Server communication
[SWS_Rte_05121] d If the swCalibrationAccess of an ArgumentDataProto-
type used in an interface of a client-server port of a SwComponentPrototype is set
to readOnly and RteMeasurementSupport is set to true the RTE Generator shall
create a McDataInstance element with
symbol set to the C-symbol name used for the allocation (see also
[SWS_Rte_03901])
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the ArgumentDataPrototype
c(SRS_Rte_00153, SRS_Rte_00189)
[SWS_Rte_05172] d If the measurement of client-server communication is ignored due
to requirement [SWS_Rte_05170] the corresponding McDataInstance in the Mc-
SupportData shall have a resultingProperties swCalibrationAccess set
to notAccessible. c(SRS_Rte_00153)
Mode Switch Communication
[SWS_Rte_06702] d If the swCalibrationAccess of a ModeDeclarationGroup-
Prototype used in an interface of a mode switch port of a SwComponentPro-
totype is set to readOnly and RteMeasurementSupport is set to true the RTE
Generator shall create three McDataInstance elements with
symbol set to the C-symbol name used for the allocation (see also
[SWS_Rte_06700])
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the ModeDeclarationGroupPrototype
Thereby the McDataInstance element corresponding to the
current mode has to reference the FlatInstanceDescriptor which role at-
tribute is set to CURRENT_MODE,
previous mode has to reference the FlatInstanceDescriptor which role
attribute is set to PREVIOUS_MODE and
next mode has to reference the FlatInstanceDescriptor which role at-
tribute is set to NEXT_MODE
c(SRS_Rte_00153, SRS_Rte_00189)
Please note that the resultingProperties of the McDataInstance elements cor-
responding to the ModeDeclarationGroupPrototype may get associated with a
CompuMethod if a CompuMethod is defined at the FlatInstanceDescriptor due

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to [SWS_Rte_05129]. Those CompuMethod may specify a literal display of the mea-

sured modes.
InterRunnableVariable
[SWS_Rte_05122] d If the swCalibrationAccess of a VariableDataPrototype
in the role implicitInterRunnableVariable or explicitInterRunnable-
Variable is set to readOnly or readWrite and RteMeasurementSupport is set
to true the RTE Generator shall create a McDataInstance element with
symbol set to the C-symbol name used for the allocation (see also
[SWS_Rte_03902])
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the VariableDataPrototype
c(SRS_Rte_00153, SRS_Rte_00189)
PerInstanceMemory
[SWS_Rte_05123] d If the swCalibrationAccess of a VariableDataProto-
type in the role arTypedPerInstanceMemory is set to readOnly or readWrite
and RteMeasurementSupport is set to true the RTE Generator shall create a Mc-
DataInstance element with
symbol set to the C-symbol name used for the allocation (see also
[SWS_Rte_07160])
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the VariableDataPrototype
c(SRS_Rte_00153, SRS_Rte_00189)
Nv RAM Block
[SWS_Rte_05124] d If the swCalibrationAccess of a VariableDataPrototype
in the role ramBlock of a NvBlockSwComponentTypes NvBlockDescriptor is
set to readOnly or readWrite and RteMeasurementSupport is set to true the
RTE Generator shall create a McDataInstance element with
symbol set to the C-symbol name used for the allocation (see also
[SWS_Rte_07174])
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the NvBlockSwComponentType
c(SRS_Rte_00153, SRS_Rte_00189)
Non Volatile Data communication
[SWS_Rte_05125] d If the swCalibrationAccess of a VariableDataPrototype
used in an NvDataInterface of a non volatile data port of a SwComponentProto-
type is set to readOnly or readWrite and RteMeasurementSupport is set to
true the RTE Generator shall create a McDataInstance element with

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symbol set to the C-symbol name used for the allocation (see also
[SWS_Rte_07197])
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the VariableDataPrototype
c(SRS_Rte_00153, SRS_Rte_00189)

4.2.8.4.3 Export Calibration information

Calibration can be either actively supported by the RTE using the pre-defined cali-
bration mechanisms of section 4.2.8.3.5 or calibration can be transparent to the RTE.
In both cases the location and attributes of the calibratable data has to be provided
by the RTE Generator in the Generation Phase in order to support the setup of the
measurement and calibration tools.
ParameterDataPrototypes of ParameterSwComponentType
[SWS_Rte_05126] d For each FlatInstanceDescriptor referencing a Parame-
terDataPrototype instance in a PortPrototype of a ParameterSwComponent-
Type with the swCalibrationAccess set to readOnly or readWrite an entry in
the McSupportData with the role mcParameterInstance shall be created with the
following attributes:
symbol set to the C-symbol name used for the allocation
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the ParameterDataPrototype
c(SRS_Rte_00189)
Shared ParameterDataPrototypes
[SWS_Rte_05127] d For each FlatInstanceDescriptor referencing a Parame-
terDataPrototype instance of a AtomicSwComponentTypes SwcInternalBe-
havior aggregated in the role sharedParameter with the swCalibrationAccess
set to readOnly or readWrite an entry in the McSupportData with the role mcPa-
rameterInstance shall be created with the following attributes:
symbol set to the C-symbol name used for the allocation
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the ParameterDataPrototype
c(SRS_Rte_00189)
Instance specific ParameterDataPrototypes
[SWS_Rte_05128] d For each FlatInstanceDescriptor referencing a Param-
eterDataPrototype instance of a AtomicSwComponentTypes SwcInternal-
Behavior aggregated in the role perInstanceParameter with the swCalibra-

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tionAccess set to readOnly or readWrite an entry in the McSupportData with

the role mcParameterInstance shall be created with the following attributes:
symbol set to the C-symbol name used for the allocation
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the ParameterDataPrototype
c(SRS_Rte_00189)
[SWS_Rte_07097] d For each ParameterDataPrototype of a BswMod-
uleDescriptions BswInternalBehavior aggregated in the role perInstan-
ceParameter with the swCalibrationAccess set to readOnly or readWrite an
entry in the McSupportData with the role mcParameterInstance shall be created
with the following attributes:
symbol set to the C-symbol name used for the allocation
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the ParameterDataPrototype
c(SRS_Rte_00189)
Default values for RAM Block
[SWS_Rte_05136] d If the swCalibrationAccess of a ParameterDataProto-
type in the role romBlock is set to readOnly or readWrite an entry in the McSup-
portData with the role mcParameterInstance shall be created with the following
attributes:
symbol set to the C-symbol name used for the allocation in [SWS_Rte_07033]
flatMapEntry referencing to the corresponding FlatInstanceDescriptor
element of the ParameterDataPrototype
c(SRS_Rte_00153, SRS_Rte_00189)

4.2.8.4.4 Export of the Calibration Method

The RTE does provide several Software Emulation Methods which can be selected in
the Ecu Configuration of the RTE (see section 7.2).
Which Software Emulation Method has been used for a particular RTE Generation shall
be documented in the McSupportData in order to allow measurement and calibration
tools to support the RTEs Software Emulation Methods. Additionally it is also possible
for an RTE Vendor to add custom Software Emulation Methods which needs to be
documented as well. The structure of the McSwEmulationMethodSupport is shown
in figure 4.32.

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AtpStructureElement ARElement
InternalBehavior Implementation

atpSplitable
atpVariation,atpSplitable atpVariation,atpSplitable
+mcSupport 0..1

McSupportData

atpVariation Tags: atpVariation Tags:

vh.latestBindingTime = vh.latestBindingTime =
preCompileTime preCompileTime

atpVariation

+staticMemory 0..* +emulationSupport 0..* Provides the possible

names for the category.
AutosarDataPrototype McSwEmulationMethodSupport This could include vendor
VariableDataPrototype specific methods.
+ category :Identifier
+baseReference + shortLabel :Identifier

0..1

+referenceTable
RteCalibrationSupport :
0..1 EcucEnumerationParamDef

defaultValue = NONE
+elementGroup 0..*
+ramLocation
McParameterElementGroup
1

AutosarDataPrototype + shortLabel :Identifier

0..* ParameterDataPrototype
+romLocation
+constantMemory
1

Figure 4.32: Structure of the McSwEmulationMethodSupport element

[SWS_Rte_05137] d The RTE Generator in Generation Phase shall create the Mc-
SwEmulationMethodSupport element as part of the McSupportData description
of the generated RTE. c(SRS_Rte_00189)
[SWS_Rte_05138] d The RTE Generator in Generation Phase shall set the value of the
category attribute of McSwEmulationMethodSupport element according to the
implemented Software Emulation Method based on the Ecu configuration parameter
RteCalibrationSupport:
NONE
SINGLE_POINTERED
DOUBLE_POINTERED
INITIALIZED_RAM
custom category name: vendor specific Software Emulation Method
c(SRS_Rte_00189)
The description of the generated structures is using the existing mechanisms already
available in the Basic Software Module Description Template [9].

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Description of ParameterElementGroup
For the description of the ParameterElementGroup an Implementation-
DataType representing a structure of the group is created ([SWS_Rte_05139]).
[SWS_Rte_05139] d For each generated ParameterElementGroup an Implemen-
tationDataType shall be created. The contained ParameterDataPrototypes
are aggregated with the role subElement as ImplementationDataTypeElement.
c(SRS_Rte_00189)
In the example figure 4.33 the ImplementationDataTypes are called RteMcSup-
portGroupType1 and RteMcSupportGroupType2.
McSupport description of the InitRam parameter method
For the description of the InitRam parameter method the specific ParameterEle-
mentGroups allocated in ram and rom are specified ([SWS_Rte_05140] and
[SWS_Rte_05141]). Then the collection and correspondence of these groups is spec-
ified (in [SWS_Rte_05142]).
[SWS_Rte_05140] d If the RTE Generator is configured to support the
(INITIALIZED_RAM) method the RTE Generator in generation phase shall gener-
ate for each ParameterElementGroup a ParameterDataPrototype with the role
constantMemory in the InternalBehavior of the RTEs Basic Software Module
Description. The ParameterDataPrototype shall have a reference to the corre-
sponding ImplementationDataType from [SWS_Rte_05139] with the role type. c
(SRS_Rte_00189)
[SWS_Rte_05141] d If the RTE Generator is configured to support the
(INITIALIZED_RAM) method the RTE Generator in generation phase shall gener-
ate for each ParameterElementGroup a VariableDataPrototype with the role
staticMemory in the InternalBehavior of the RTEs Basic Software Module
Description. The VariableDataPrototype shall have a reference to the corre-
sponding ImplementationDataType from [SWS_Rte_05139] with the role type.
c(SRS_Rte_00189)
[SWS_Rte_05142] d If the RTE Generator is configured to support the
(INITIALIZED_RAM) method the RTE Generator in generation phase shall gener-
ate for each ParameterElementGroup a McParameterElementGroup with the
role elementGroup in the McSwEmulationMethodSupport [SWS_Rte_05137] el-
ement.
The McParameterElementGroup shall have a reference to the corresponding
ParameterDataPrototype from [SWS_Rte_05140] with the role romLoca-
tion.
The McParameterElementGroup shall have a reference to the correspond-
ing VariableDataPrototype from [SWS_Rte_05141] with the role ramLo-
cation.
c(SRS_Rte_00189)

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McSupport description of the Single pointered method

For the description of the Single pointered method the specific ParameterElement-
Groups allocated in rom are specified ([SWS_Rte_05143]). Then an array data type
is specified which contains as many number of elements (void pointers) as there are
ParameterElementGroups ([SWS_Rte_05144]). Then the instance of this array is
specified in ram ([SWS_Rte_05152]) and referenced from the McSwEmulationMeth-
odSupport ([SWS_Rte_05153]). The actual values for each array element are speci-
fied as references to the ParameterElementGroup prototypes ([SWS_Rte_05154]).
[SWS_Rte_05143] d If the RTE Generator is configured to support the
(SINGLE_POINTERED) method the RTE Generator in generation phase shall gener-
ate for each ParameterElementGroup a ParameterDataPrototype with the role
constantMemory in the InternalBehavior of the RTEs Basic Software Module
Description. The ParameterDataPrototype shall have a reference to the corre-
sponding ImplementationDataType from [SWS_Rte_05139] with the role type. c
(SRS_Rte_00189)
[SWS_Rte_05144] d If the RTE Generator is configured to support the
(SINGLE_POINTERED) method the RTE Generator in generation phase shall gener-
ate an ImplementationDataType with one ImplementationDataTypeElement
in the role subElement.
The ImplementationDataTypeElement shall have the attribute arraySize
set to the number of ParameterElementGroups from [SWS_Rte_05139].
The ImplementationDataTypeElement shall have a SwDataDefProps el-
ement with a reference to an ImplementationDataType representing a void
pointer, in the role implementationDataType.
c(SRS_Rte_00189)
[SWS_Rte_05152] d If the RTE Generator is configured to support the
(SINGLE_POINTERED) method the RTE Generator in generation phase shall gen-
erate a VariableDataPrototype with the role staticMemory in the Inter-
nalBehavior of the RTEs Basic Software Module Description. The Vari-
ableDataPrototype shall have a reference to the ImplementationDataType
from [SWS_Rte_05144] with the role type. c(SRS_Rte_00189)
[SWS_Rte_05153] d If the RTE Generator is configured to support the
(SINGLE_POINTERED) method the RTE Generator in generation phase shall generate
a reference from the McSwEmulationMethodSupport [SWS_Rte_05137] element
to the VariableDataPrototype [SWS_Rte_05152] in the role referenceTable.
c(SRS_Rte_00189)
[SWS_Rte_05154] d If the RTE Generator is configured to support the
(SINGLE_POINTERED) method the RTE Generator in generation phase shall generate
an ArrayValueSpecification as the initValue of the array [SWS_Rte_05152]
and for each ParameterElementGroup a ReferenceValueSpecification el-

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ement in the ArrayValueSpecification defining the references to the individual

ParameterElementGroup prototypes [SWS_Rte_05143]. c(SRS_Rte_00189)
McSupport description of the Double pointered method
The description of the Double pointered method is quite similar to the Single point-
ered method, but the allocation to ram and rom is different and it allocates the addi-
tional pointer parameter. The specific ParameterElementGroups allocated in rom
are specified ([SWS_Rte_05155]). Then an array data type is specified which con-
tains as many number of elements (void pointers) as there are ParameterEle-
mentGroups ([SWS_Rte_05156]). Then the instance of this array is specified in
rom ([SWS_Rte_05157]) and referenced from the McSwEmulationMethodSupport
([SWS_Rte_05158]). The actual values for each array element are specified as ref-
erences to the ParameterElementGroup prototypes ([SWS_Rte_05159]). Then the
type of the base pointer is then created ([SWS_Rte_05160]) and an instance is al-
located in ram ( [SWS_Rte_05161]). The reference is initialized to the array in rom
([SWS_Rte_05162]).
[SWS_Rte_05155] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall gener-
ate for each ParameterElementGroup a ParameterDataPrototype with the role
constantMemory in the InternalBehavior of the RTEs Basic Software Module
Description. The ParameterDataPrototype shall have a reference to the corre-
sponding ImplementationDataType from [SWS_Rte_05139] with the role type. c
(SRS_Rte_00189)
In the example figure 4.33 the ParameterDataPrototypes are called RteMcSup-
portParamGroup1 and RteMcSupportParamGroup1.
[SWS_Rte_05156] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall gener-
ate an ImplementationDataType with one ImplementationDataTypeElement
in the role subElement.
The ImplementationDataTypeElement shall be of category ARRAY with the
attribute arraySize set to the number of ParameterElementGroups from
[SWS_Rte_05139].
The ImplementationDataTypeElement shall have a SwDataDefProps el-
ement with a reference to an ImplementationDataType representing a void
pointer, in the role implementationDataType.
c(SRS_Rte_00189)
In the example figure 4.33 the ImplementationDataType is called RteMcSup-
portPointerTableType.
[SWS_Rte_05157] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall gen-
erate a ParameterDataPrototype with the role constantMemory in the In-
ternalBehavior of the RTEs Basic Software Module Description. The Param-

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eterDataPrototype shall have a reference to the ImplementationDataType

from [SWS_Rte_05156] with the role type. c(SRS_Rte_00189)
In the example figure 4.33 the ParameterDataPrototype is called RteMcSup-
portPointerTable.
[SWS_Rte_05158] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall generate
a reference from the McSwEmulationMethodSupport [SWS_Rte_05137] element
to the ParameterDataPrototype [SWS_Rte_05157] in the role referenceTable.
c(SRS_Rte_00189)
[SWS_Rte_05159] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall generate
an ArrayValueSpecification as the initValue of the array [SWS_Rte_05157]
and for each ParameterElementGroup a ReferenceValueSpecification el-
ement in the ArrayValueSpecification defining the references to the individual
ParameterElementGroup prototypes [SWS_Rte_05155]. c(SRS_Rte_00189)
In the example figure 4.33 the ArrayValueSpecification is called RteMc-
SupportPointerTableInit. The ReferenceValueSpecifications are called
RteMcSupportParamGroup1Ref and RteMcSupportParamGroup2Ref.
[SWS_Rte_05160] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall gener-
ate an ImplementationDataType with one ImplementationDataTypeElement
being a reference to the array type from [SWS_Rte_05156]. c(SRS_Rte_00189)
In the example figure 4.33 the ImplementationDataType is called RteMcSup-
portBasePointerType.
[SWS_Rte_05161] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall gen-
erate a VariableDataPrototype with the role staticMemory in the Inter-
nalBehavior of the RTEs Basic Software Module Description. The Vari-
ableDataPrototype shall have a reference to the ImplementationDataType
from [SWS_Rte_05160] with the role type. c(SRS_Rte_00189)
In the example figure 4.33 the VariableDataPrototype is called RteMcSupport-
BasePointer.
[SWS_Rte_05162] d If the RTE Generator is configured to support the
(DOUBLE_POINTERED) method the RTE Generator in generation phase shall gener-
ate a ReferenceValueSpecification to the array from [SWS_Rte_05157] as the
initValue of the reference [SWS_Rte_05161]. c(SRS_Rte_00189)
In the example figure 4.33 the ReferenceValueSpecification is called RteMc-
SupportBasePointerInit.

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RteInternalBehavior : +staticMemory RteMcSupportBasePointer : +type RteMcSupportBasePointerType :

BswInternalBehavior VariableDataPrototype ImplementationDataType

+swDataDefProps
+initValue
atpVariation
RteMcSupportBasePointerInit : RteMcSupportBaseTypePointerDDP :
ReferenceValueSpecification SwDataDefProps

+swPointerTargetProps

RteMcSupportBaseTypePointerTargetP :
SwPointerTargetProps

+swDataDefProps

atpVariation
RteMcSupportBaseTypePointerTargetDDP :
SwDataDefProps

+referenceValue +implementationDataType

+constantMemory RteMcSupportPointerTable : +type RteMcSupportPointerTableType :

ParameterDataPrototype ImplementationDataType

+initValue +subElement

RteMcSupportPointerTableInit : RteMcSupportPointerTableElement :
ArrayValueSpecification ImplementationDataTypeElement

arraySize = 2

+element +element

RteMcSupportParamGroup1Ref : RteMcSupportParamGroup2Ref :
ReferenceValueSpecification ReferenceValueSpecification

+referenceValue

+constantMemory RteMcSupportParamGroup1 :
ParameterDataPrototype

+referenceValue

+constantMemory RteMcSupportParamGroup2 :
ParameterDataPrototype

+type

RteMcSupportGroupType2 :
ImplementationDataType

+type
+subElement MyCalParam111 :
ImplementationDataTypeElement
RteMcSupportGroupType1 :
ImplementationDataType
+subElement MyCalParam22 :
ImplementationDataTypeElement

+subElement
MyCalParam13 :
ImplementationDataTypeElement

Figure 4.33: Example of the structure for Double Pointered Method

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4.2.8.4.5 Export of Variant Handling

The Rte Generator shall provide information on values of system constants. The values
are part of the input information and need to be collected and copied into a dedicated
artifact to be delivered with the McSupportData.
[SWS_Rte_05168] d The Rte Generator in generation phase shall create an elements
of type SwSystemconstantValueSet and create copies of all system constant val-
ues found in the input information of type SwSystemconstValue where the refer-
enced SwSystemconst element has the swCalibrationAccess set to readOnly.
c(SRS_Rte_00153, SRS_Rte_00191)
In case the SwSystemconstValue is subject to variability and the variability can be
resolved during Rte generation phase
[SWS_Rte_05176] d If a SwSystemconst with swCalibrationAccess set to
readOnly has an assigned SwSystemconstValue which is subject to variabil-
ity with the latest binding time SystemDesignTime or CodeGenerationTime
the related SwSystemconstValue copy in the SwSystemconstantValueSet ac-
cording to [SWS_Rte_05168] shall contain the resolved value. c(SRS_Rte_00153,
SRS_Rte_00191)
[SWS_Rte_05174] d If a SwSystemconst with swCalibrationAccess set to
readOnly has an assigned SwSystemconstValue which is subject to variability with
the latest binding time PreCompileTime the related SwSystemconstValue copy
in the SwSystemconstantValueSet according to [SWS_Rte_05168] shall have an
AttributeValueVariationPoint. The PreBuild conditions of the Attribute-
ValueVariationPoint shall correspond to the PreBuild conditions of the input
SwSystemconstValues conditions. c(SRS_Rte_00153, SRS_Rte_00191)
[SWS_Rte_05169] d The Rte Generator in generation phase shall create a reference
from the McSupportData element ([SWS_Rte_05118]) to the SwSystemconstant-
ValueSet element ([SWS_Rte_05168]). c(SRS_Rte_00153, SRS_Rte_00191)
In case the RTE Generator implements variability on a element which is accessible by
a MCD system the related existence condition has to be documented in the McSup-
portData structure as well.
[SWS_Rte_05175] d If an element in the McSupportData is related to an element
in the input configuration which is subject to variability with the latest binding time
PreCompileTime or PostBuild the RTE Generator shall add a VariationPoint for
such element. The PreBuild and PostBuild conditions of the VariationPoint shall
correspond to the PreBuild and PostBuild conditions of the input elements conditions.
c(SRS_Rte_00153, SRS_Rte_00191)

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4.2.9 Access to NVRAM data

4.2.9.1 General

There are different methods available for AUTOSAR SW-Cs to access data stored in
NVRAM.
Calibration data Calibrations can be stored in NVRAM, but are not modified
during a "normal" execution of the ECU. Calibrations are usually directly read from
their memory location, but can also be read from a RAM buffer when the access
time needs to be optimized (e.g. for interpolation tables). They are described in
section 4.2.8.
Access to NVRAM blocks This method uses PerInstanceMemory as a
RAM Block for the NVRAM blocks. While this method is efficient, its use is
restricted.
The NVRAM Manager [21] is a BSW module which provides services for SW-C
to access NVRAM Blocks during runtime. The NVM block data is not accessed
directly, but through a RAM Block, which can be a PerInstanceMemory in-
stantiated by the RTE, or a SW-C internal buffer. When this method is used, the
RTE does not provide any data consistency mechanisms (i.e. different runnables
from the SW-C and the NVM can access the RAM Block concurrently without
being protected by the RTE).
Note:
This mechanism permits efficient usage of NVRAM data, but requires the SW-C
designer to take care that accesses to the PerInstanceMemory from different
task contexts dont cause data inconsistencies. The Access to NVRAM blocks
should not be used in multi core environments. In AUTOSAR release 4.0, it can
not be expected that the NVRAM Manager can access the PerInstanceMem-
ory of another core. The presence of a shared memory section is not required by
AUTOSAR. Only in the case of arTypedPerInstanceMemory, a SwDataDef-
Props item is available to assign the PerInstanceMemory to a shared memory
section.
Access to NVRAM data with a NvBlockSwComponentType The data is ac-
cessed through a NvDataInterface connected to a NvBlockSwComponent-
Types. This access is modeled at the VFB level, and, when necessary, protected
by the RTE against concurrent accesses. It will be described further in this sec-
tion.
Please note that the terms NVRAM Block, NV Block, RAM Block, ROM Block and
RAM mirror used in this document are defined in the specification of the NVRAM
Manager [21].

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4.2.9.2 Usage of the NvBlockSwComponentType

The code of NvBlock SwComponentPrototypes is implemented by the RTE Gener-

ator. NvBlockSwComponentTypes provide a port interface for the access and man-
agement of data stored in NVRAM.

Figure 4.34: Connection to the NvBlockSwComponentType

Figure 4.34 illustrates the usage of a NvBlockSwComponentType. Depending on

the use-case SW-Cs can be connected to a NvBlockSwComponentType in different
ways. For example by Ports typed by SenderReceiverInterfaces / NvDataIn-
terfaces only or by Ports typed by SenderReceiverInterfaces / NvDataIn-
terfaces and ClientServerInterfaces. Ports typed by SenderReceiverIn-
terfaces / NvDataInterfaces are used to provide access to NV data and Ports
typed by ClientServerInterfaces are used for the management of NV data. Man-
aging NV data by SW-Cs is useful in order to copy data of the RAM Block to NV
block vice versa at certain points in time (SW-Cs are clients). Additionally SW-Cs can
get notifications from NVM (SW-Cs are servers).
In the following sections the requirements for the usage of NvBlockSwComponent-
Type will be given.
[SWS_Rte_07301] d Several AUTOSAR SW-Cs (and also several instances of a AU-
TOSAR SW-C) shall be able to read the same VariableDataPrototypes of a
NvBlockSwComponentType. c(SRS_Rte_00176)

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AtomicSwComponentType
NvBlockSwComponentType

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

atpVariation,atpSplitable

+nvBlockDescriptor 0..*

AtpStructureElement
Identifiable
NvBlockDescriptor

+ supportDirtyFlag :Boolean [0..1]

+ramBlock 1 +romBlock 0..1 +timingEvent 0..1

AutosarDataPrototype AutosarDataPrototype RTEEvent

VariableDataPrototype ParameterDataPrototype TimingEvent

+ period :TimeValue

+initValue 0..1 +initValue 0..1

ValueSpecification

+ shortLabel :Identifier [0..1]

+nvBlockNeeds 1

ServiceNeeds enumeration
NvBlockNeeds NvBlockNeedsReliabilityEnum

+ calcRamBlockCrc :Boolean [0..1] noProtection

+ checkStaticBlockId :Boolean [0..1] errorDetection
+ cyclicWritingPeriod :TimeValue [0..1] errorCorrection
+ nDataSets :PositiveInteger [0..1]
+ nRomBlocks :PositiveInteger [0..1]
+ ramBlockStatusControl :RamBlockStatusControlEnum [0..1]
+ readonly :Boolean [0..1]
+ reliability :NvBlockNeedsReliabilityEnum [0..1]
enumeration
+ resistantToChangedSw :Boolean [0..1]
RamBlockStatusControlEnum
+ restoreAtStart :Boolean [0..1]
+ selectBlockForFirstInitAll :Boolean [0..1] api
+ storeAtShutdown :Boolean [0..1] nvRamManager
+ storeCyclic :Boolean [0..1]
+ storeEmergency :Boolean [0..1]
+ storeImmediate :Boolean [0..1]
+ useAutoValidationAtShutDown :Boolean [0..1] enumeration
+ useCRCCompMechanism :Boolean [0..1] NvBlockNeedsWritingPriorityEnum
+ writeOnlyOnce :Boolean [0..1]
+ writeVerification :Boolean [0..1] low
+ writingFrequency :PositiveInteger [0..1] medium
+ writingPriority :NvBlockNeedsWritingPriorityEnum [0..1] high

Figure 4.35: NvBlockSwComponentType and NvBlockDescriptor

A NvBlockSwComponentType contains multiple NvBlockDescriptors. Each of

these NvBlockDescriptor is associated to exactly one NVRAM Block.

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A NvBlockDescriptor contains a VariableDataPrototype which acts as a RAM

Block for the NVRAM Block, and optionally a ParameterDataPrototype to act as
the default ROM value for the NVRAM Block.
[SWS_Rte_07353] d The RTE Generator shall reject configurations where a
NvBlockDescriptor of a NvBlockSwComponentType contains a romBlock
whose data type is not compatible with the type of the ramBlock. c(SRS_Rte_00177,
SRS_Rte_00018)
[SWS_Rte_07303] d The RTE shall allocate memory for the ramBlock Variable-
DataPrototype of the NvBlockDescriptor instances. c(SRS_Rte_00177)
[SWS_Rte_07632] d The variables allocated for the ramBlocks shall be initialized if
the general initialization conditions in [SWS_Rte_07046] are fulfilled. The initialization
as to be applied during Rte_Start and Rte_RestartPartition depending from
the configured RteInitializationStrategy. c(SRS_Rte_00177)
Note: When blocks are configured to be read by NvM_ReadAll, the initialization may
erase the value read by the NVM. These blocks should not have an initValue.
[SWS_Rte_07355] d For each NvBlockDescriptor with a romBlock Parame-
terDataPrototype, the RTE shall allocate a constant block of default values. c
(SRS_Rte_00177)
[SWS_Rte_07633] d The constants allocated for the romBlocks shall be initialized to
the value of the initValue, if they have an initValue. c(SRS_Rte_00177)

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ARElement
AtpType
AutosarDataType

+type 1
{redefines atpType}
isOfType

AtomicSwComponentType DataInterface DataPrototype AtpBlueprint

NvBlockSwComponentType NvDataInterface AutosarDataPrototype AtpBlueprintable
ImplementationDataType

atpVariation Tags: atpVariation Tags:

vh.latestBindingTime = vh.latestBindingTime =
atpVariation,atpSplitable preCompileTime preCompileTime atpVariation

+nvBlockDescriptor 0..* +nvData 1..* +subElement 0..* {ordered}

AtpStructureElement AtpStructureElement
VariableDataPrototype
Identifiable Identifiable
+ramBlock
NvBlockDescriptor ImplementationDataTypeElement
1

+targetDataPrototype
0..1

1
{subsets atpContextElement}
0..1
+rootVariableDataPrototype

+contextDataPrototype

{ordered}
0..*
+rootVariableDataPrototype

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

atpVariation
AtpInstanceRef
ArVariableInImplementationDataInstanceRef
VariableInAtomicSWCTypeInstanceRef

atpVariation

+autosarVariable 0..1 0..1 +autosarVariableInImplDatatype

+instantiationDataDefProps 0..*

InstantiationDataDefProps AutosarVariableRef
+variableInstance

0..1

1..* +nvBlockDataMapping
+writtenReadNvData
NvBlockDataMapping
0..1

+writtenNvData

0..1
+readNvData

0..1

+nvRamBlockElement

Figure 4.36: NvBlockDataMapping

For each element stored in the NVRAM Block of a NvBlockDescriptor, there

should be one NvBlockDataMapping to associate the VariableDataPrototypes
of the ports used for read and write access and the VariableDataPrototype defin-
ing the location of the element in the ramBlock. Thereby the Implementation-
DataTypes of the VariableDataPrototypes have to compatible.

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[SWS_Rte_03866] d The RTE Generator shall reject any configuration that violates
[constr_1395], [constr_1403] and [constr_1404]. c(SRS_Rte_00018)
[SWS_Rte_07621] d The RTE Generator shall reject configurations where [con-
str_2013] or [constr_1285] is violated. c(SRS_Rte_00018)
Note: This is required to ensure that the default values in romBlock are structurally
matching data in the ramBlock and therefore can be copied to the ramBlock in case
that the callback Rte_NvMNotifyInitBlock of the related NvBlock is called.
[SWS_Rte_07343] d The RTE Generator shall reject configurations where a Vari-
ableDataPrototype instance in the role ramBlock is accessed by SW-C instances
of different partitions. c(SRS_Rte_00177, SRS_Rte_00018)
The rational for [SWS_Rte_07343] is to allow the implementation of cleanup activities
in case of termination or restart of a partition. These cleanup activities may require to
invalidate the RAM Block or reload data from the NVRAM device, which would impact
other partitions if a the ramBlock is accessed by SW-Cs of different partitions.
A NvBlockSwComponentType can be used to reduce the quantity of NVRAM Blocks
needed on an ECU:
the same block can be used to store different flags or other small data elements;
the same data element can be used by different SW-Cs or different instances of
a SW-C.
It also permits to simplify processes and algorithms when it must be guaranteed that
two SW-Cs of an ECU use the same NVRAM data.
Note: this feature can increase the RAM usage of the ECU because it forces the
NVRAM Manager to instantiate an additional RAM buffer, called RAM mirror. How-
ever, when the same data elements have to be shared between SW-Cs, it reduces the
number of RAM Blocks needed to be instantiated by the RTE, and can reduce the
overall RAM usage of the ECU.
[SWS_Rte_07356] d The RTE Generator shall reject configurations where a Vari-
ableDataPrototype referenced by a NvDataInterface has a queued swIm-
plPolicy. c(SRS_Rte_00018)
[SWS_Rte_CONSTR_09011] NvMBlockDescriptor related to a RAM Block of
a NvBlockSwComponentType shall use NvmBlockUseSyncMechanism d The
NVRAM Block associated to the NvBlockDescriptors of a NvBlockSwCompo-
nentType shall be configured with the NvMBlockUseSyncMechanism feature en-
abled, and the NvMWriteRamBlockToNvCallback and NvMReadRamBlockFrom-
NvCallback parameters set to the Rte_GetMirror and Rte_SetMirror API of
the NvBlockDescriptor. c()
An NvBlockSwComponentType may have unconnected p-ports or r-ports (see
[SWS_Rte_01329]).

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[SWS_Rte_07669] d An NvBlockSwComponentType with an unconnected r-port

shall behave as if no updated data were received for VariableDataPrototypes
this unconnected r-port. c(SRS_Rte_00139)

4.2.9.3 Interface of the NvBlockSwComponentType

4.2.9.3.1 Access to the NVRAM data

The NvBlockSwComponentType provides PPortPrototypes and RPortProto-

types with an NvDataInterface data Sender-Receiver semantic to read the value
of the NVRAM data or write the new value.
Like the SenderReceiverInterfaces, each of these NvDataInterfaces can pro-
vide access to multiple VariableDataPrototypes.
The same Rte_Read, Rte_IRead, Rte_DRead, Rte_Write, Rte_IWrite,
Rte_IWriteRef APIs are used to access these VariableDataPrototypes as for
SenderReceiverInterfaces.
Due to the usage of the implicit APIs Rte_IRead and Rte_IWriteRef multiple
buffering can be avoided, i.e. the RunnableEntitys of application SW-Cs or Ex-
ecutableEntitys of BSW modules (e.g. DCM) can directly access the Variable-
DataPrototypes on the RAM Block. To guarantee this behavior one of the following
preconditions must apply:
VariableDataPrototypes on a RAM Block are only accessed by
dataReadAccess
VariableDataPrototypes on a RAM Block are accessed by dataReadAc-
cess and dataWriteAccess and there is no mutual preemption between the
write accesses or between the write and read accesses, including no preemption
by Rte_SetMirror and Rte_GetMirror.
No PortInterfaceMappings are applied which requiring data conversions
See also chapter 4.3.1.5.1 about ConsistencyNeeds.
[SWS_Rte_07667] d The RTE Generator shall reject configurations where an r-port
typed with an NvDataInterface is not connected and no NvRequireComSpec with
a initValue are provided for each VariableDataPrototype of this NvDataIn-
terface. This requirement does not apply if the r-port belongs to a NvBlockSwCom-
ponentType. c(SRS_Rte_00018, SRS_Rte_00139)
[SWS_Rte_07667] is required to avoid unconnected r-port without a defined init-
Value. Please note that for NvBlockSwComponent unconnected r-ports without init
values are not a fault because the init values are defined in the NvBlockDescriptors
ramBlock (see as well [SWS_Rte_07632], [SWS_Rte_07669])

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[SWS_Rte_07668] d The RTE shall initialize the VariableDataPrototypes of an r-

port according to the initValue of the r-ports NvRequireComSpec referring to the
VariableDataPrototype. c(SRS_Rte_00139, SRS_Rte_00108, SRS_Rte_00068)
In order to write updated NV data of NVRAM Blocks to NV memory with a certain
timing schema the RTE provides a functionality called "dirty flag mechanism". This
mechanism interacts directly with the NvM module when write APIs of the RTE are
invoked by an AtomicSwComponentType using a PortPrototype typed by an Nv-
DataInterface. The behavior of the dirty flag mechanism depends on the writing
strategy of the related NvBlockDescriptors.
[SWS_Rte_08080] d If an AtomicSwComponentType using a PortPrototype
with an NvDataInterface invokes the explicit API Rte_Write and the at-
tributes NvBlockDescriptor.dirtyFlagSupport and NvBlockNeeds.storeAt-
Shutdown are set to true, the RTE shall mark the associated RAM Block(s) as
CHANGED by calling the NvM_SetRamBlockStatus function of the NvM module with
the BlockChanged parameter set to true. The NvM_SetRamBlockStatus func-
tion shall be called by the RTE after the data accessed by the Rte_Write function is
written back to the RAM Block(s). c(SRS_Rte_00177, SRS_Rte_00245)
[SWS_Rte_08081] d If an AtomicSwComponentType using a PortPrototype with
an NvDataInterface invokes the implicit APIs Rte_IWrite / Rte_IWriteRef
and the attributes NvBlockDescriptor.dirtyFlagSupport and NvBlock-
Needs.storeAtShutdown are set to true, the RTE shall mark the associated
RAM Block(s) as CHANGED by calling the NvM_SetRamBlockStatus function of
the NvM module with the BlockChanged parameter set to true. The function
NvM_SetRamBlockStatus shall be called by the RTE after the data accessed by
the Rte_IWrite / Rte_IWriteRef functions is written back from the preemp-
tion area buffer to the RAM Block(s) (for further details see chapter 4.3.1.5.1). c
(SRS_Rte_00177, SRS_Rte_00245)
[SWS_Rte_08082] d If an AtomicSwComponentType using a PortPrototype
with an NvDataInterface invokes the explicit API Rte_Write and the at-
tributes NvBlockDescriptor.dirtyFlagSupport and NvBlockNeeds.store-
Cyclic are set to true, the RTE shall write the associated RAM Block(s) to
NV memory by calling the NvM_WriteBlock function of the NvM module in the
next cycle of a periodic activity after the data accessed by the Rte_Write func-
tion is written back to the RAM Block(s). The periodic activity shall be imple-
mented in the context of an NvBlockDescriptors RunnableEntity (see require-
ments [SWS_Rte_08086], [SWS_Rte_08087], [SWS_Rte_08088], [SWS_Rte_08089],
[SWS_Rte_08090]) according to the cycle period defined in the attribute NvBlockDe-
scriptor.timingEvent.period. c(SRS_Rte_00177, SRS_Rte_00245)
[SWS_Rte_08083] d If an AtomicSwComponentType using a PortPrototype with
an NvDataInterface invokes the implicit APIs Rte_IWrite / Rte_IWriteRef
and the attributes NvBlockDescriptor.dirtyFlagSupport and NvBlock-
Needs.storeCyclic are set to true, the RTE shall write the associated RAM
Block(s) to NV memory by calling the NvM_WriteBlock function of the NvM mod-

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ule in the cycle of a periodic activity after the data accessed by the Rte_IWrite /
Rte_IWriteRef functions is written back from the preemption area buffer to the RAM
Block(s) (for further details see chapter 4.3.1.5.1). The periodic activity shall be imple-
mented in the context of an NvBlockDescriptors RunnableEntity (see require-
ments [SWS_Rte_08086], [SWS_Rte_08087], [SWS_Rte_08088], [SWS_Rte_08089],
[SWS_Rte_08090]) according to the cycle period defined in the attribute NvBlockDe-
scriptor.timingEvent.period. c(SRS_Rte_00177, SRS_Rte_00245)
[SWS_Rte_08084] d If an AtomicSwComponentType using a PortPrototype
with an NvDataInterface invokes the explicit API Rte_Write and the at-
tributes NvBlockDescriptor.dirtyFlagSupport and NvBlockNeeds.storeIm-
mediate are set to true, the RTE shall write the associated RAM Block(s) to
NV memory by calling the NvM_WriteBlock function of the NvM module. The
NvM_WriteBlock function shall be called in the context of an NvBlockDescrip-
tors RunnableEntity (see requirements [SWS_Rte_08086], [SWS_Rte_08087],
[SWS_Rte_08088], [SWS_Rte_08089], [SWS_Rte_08090]) after the data accessed
by the Rte_Write function is written back to the RAM Block(s). c(SRS_Rte_00177,
SRS_Rte_00245)
[SWS_Rte_08085] d If an AtomicSwComponentType using a PortPrototype with
an NvDataInterface invokes the implicit APIs Rte_IWrite / Rte_IWriteRef
and the attributes NvBlockDescriptor.dirtyFlagSupport and NvBlock-
Needs.storeImmediate are set to true, the RTE shall write the associated
RAM Block(s) to NV memory by calling the NvM_WriteBlock function of the
NvM module. The function NvM_WriteBlock shall be called in the context of
an NvBlockDescriptors RunnableEntity (see requirements [SWS_Rte_08086],
[SWS_Rte_08087], [SWS_Rte_08088], [SWS_Rte_08089], [SWS_Rte_08090]) after
the data accessed by the Rte_IWrite / Rte_IWriteRef functions is written back
from the preemption area buffer to the RAM Block(s) (for further details see chapter
4.3.1.5.1). c(SRS_Rte_00177, SRS_Rte_00245)
Note: Notifications received from the NVM module (e.g. NvMNotifyJobFinished)
will not be forwarded to the SW-Cs by the dirty flag mechanism. The standardized
NvM Client-Server interfaces can be used (see chapter 4.2.9.3.2) if a SW-C needs to
be informed regarding the NvM job result.

4.2.9.3.2 NVM interfaces

The NvBlockSwComponentType can also have ports used for NV data management
and typed by Client-Server interfaces derived from the NVRAM Manager [21] stan-
dardized ones. Note that these ports shall always have a PortInterface with the
attribute isService set to FALSE. The definition of blueprints for these interfaces can
be found in document MOD_GeneralBlueprints [22] in the ARPackage AUTOSAR/N-
vBlockSoftwareComponentType/ClientServerInterfaces_Blueprint.
The standardized NvM Client-Server interfaces are composed as follows:

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NvMService
This interface is used to send commands to the NVM. The NvBlockSwCompo-
nentType provides a server port intended to be used by the SW-C users of this
NvBlockSwComponentType.
NvMNotifyJobFinished
This interface is used by the NVM to notify the end of job. The NvBlockSwCom-
ponentType provides a server port intended to be used by the NVM, and client
ports intended to be connected to the SW-C users of this NvBlockSwCompo-
nentType.
NvMNotifyInitBlock
This interface is used by the NVM to request users to provide the default values
in the RAM Block. The NvBlockSwComponentType provides a server port
intended to be used by the NVM, and client ports intended to be connected to the
SW-C users of this NvBlockSwComponentType.
NvMAdmin
This interface is used to order some administrative operations to the NVM. The
NvBlockSwComponentType provides a server port intended to be used by the
SW-C users of this NvBlockSwComponentType.
For the implementation of NvBlockSwComponentTypes that have NvM service ports
the RTE has to call the API of NvM. In order to access NvM API the NvM.h file has to
be included.
[SWS_Rte_08063] d The RTE shall include the NvM.h file, if it has to access NvM API.
c(SRS_Rte_00177)
Note: no restrictions have been added to the NVM interfaces. However, some op-
erations of the NVM might require cooperation between the different users of the
NvBlockSwComponentType. For example, a ReadBlock operation will overwrite the
RAM Block, which might affect multiple SW-Cs.

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ARElement +port AtpBlueprintable

AtpBlueprint AtpPrototype
AtpBlueprintable atpVariation,atpSplitable 0..* PortPrototype
AtpType
+portPrototype
SwComponentType
atpVariation Tags: 1
vh.latestBindingTime =
+port 1
preCompileTime

AtomicSwComponentType Relation of PortPrototype to

PortInterface is documented
elsewhere.

NvBlockSwComponentType
ARElement
AtpBlueprint
AtpBlueprintable
AtpType
PortInterface

atpVariation Tags: + isService :Boolean

vh.latestBindingTime = + serviceKind :ServiceProviderEnum [0..1]
preCompileTime

atpVariation,atpSplitable
+nvBlockDescriptor 0..* ClientServerInterface

AtpStructureElement
atpVariation,atpSplitable Identifiable
NvBlockDescriptor
atpVariation Tags:
+ supportDirtyFlag :Boolean [0..1] atpVariation vh.latestBindingTime =
+operation 1..* blueprintDerivationTim
e
atpVariation Tags: AtpStructureElement
vh.latestBindingTime = Identifiable
atpVariation
preCompileTime ClientServerOperation
+clientServerPort 0..*
+operation
RoleBasedPortAssignment
instanceRef
+ role :Identifier

+internalBehavior 0..1 OperationInvokedEvent

InternalBehavior AtpStructureElement
SwcInternalBehavior ExecutableEntity
RunnableEntity

+runnable 0..* 0..1 +startOnEvent

AbstractEvent
atpVariation,atpSplitable AtpStructureElement
+event
RTEEvent
atpVariation,atpSplitable *
0..1

+portAPIOption PortAPIOption

atpVariation,atpSplitable 0..*

0..*
atpVariation Tags: +portArgValue {ordered}
vh.latestBindingTime =
preCompileTime PortDefinedArgumentValue

Figure 4.37: SwcInternalBehavior of NvBlockSwComponentTypes

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ARElement +port AtpBlueprintable

AtpBlueprint AtpPrototype
AtpBlueprintable atpVariation,atpSplitable 0..*
PortPrototype
AtpType
SwComponentType
1 +portPrototype

AbstractProvidedPortPrototype AbstractRequiredPortPrototype
AtomicSwComponentType

NvBlockSwComponentType
PPortPrototype PRPortPrototype RPortPrototype

atpVariation Tags: isOfType

atpVariation,atpSplitable vh.latestBindingTime =

+providedRequiredInterface
preCompileTime isOfType isOfType
+nvBlockDescriptor 0..*

+providedInterface

{redefines atpType}
{redefines atpType}

{redefines atpType}

+requiredInterface
AtpStructureElement
Identifiable
NvBlockDescriptor
atpVariation Tags:
+ supportDirtyFlag :Boolean [0..1] vh.latestBindingTime =
preCompileTime

1
1

1
atpVariation ARElement
AtpBlueprint
+clientServerPort 0..* AtpBlueprintable
AtpType
RoleBasedPortAssignment
PortInterface
+ role :Identifier
+ isService :Boolean
+ serviceKind :ServiceProviderEnum [0..1]

ClientServerInterface

atpVariation Tags:
vh.latestBindingTime =
blueprintDerivationTim atpVariation
e
+operation 1..*

AtpStructureElement
Identifiable
ClientServerOperation

Figure 4.38: NVM notifications

The requests received from the SW-C side are forwarded by the NvBlockSwCompo-
nentTypes runnables to the NVM module, using the NVM C API indicated by the
RoleBasedPortAssignment. See figure 4.37.
Notifications received from the NVM are forwarded to all the SW-C connected to the no-
tification interfaces of the NvBlockSwComponentType with a RoleBasedPortAs-
signment of the corresponding type. See figure 4.38.

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[SWS_Rte_07398] d The RTE Generator shall implement runnables for each con-
nected server port of a NvBlockSwComponentType. c(SRS_Rte_00177)
[SWS_Rte_07399] d The NvBlockSwComponentTypes runnables used as servers
connected to the SW-C shall forward the request to the NVM by calling the associated
NVM API. c(SRS_Rte_00177)
[SWS_Rte_04535] d The return values of NvM APIs NvM_WriteBlock
and NvM_SetRAMBlockStatus (See requirements [SWS_Rte_08080],
[SWS_Rte_08081], [SWS_Rte_08082], [SWS_Rte_08083], [SWS_Rte_08084],
[SWS_Rte_08085]) called by the RTE shall be ignored. c(SRS_Rte_00177)
[SWS_Rte_08064] d The symbol attribute of RunnableEntitys triggered by an Op-
erationInvokedEvent of NvBlockSwComponentTypes shall be used by the RTE
generator to identify the to be called NvM API function (see [constr_1234] in software
component template [2]). c(SRS_Rte_00177)
The NvBlockSwComponentType may define PortDefinedArgumentValues to
provide the BlockId value in case the NvBlockSwComponentType defines server
ports for the call of NvM services. Till R4.2 this was the only possibility to provide
the BlockId value. But these values are not mandatory any longer and are super-
seded by the configuration of RteNvRamAllocation, see [SWS_Rte_06211] and
[SWS_Rte_06212].
[SWS_Rte_06211] d The RTE generator shall determine the appropriate BlockId
value for the invocation of NvM API functions from the parameter of the NvMBlock-
Descriptor which is mapped via RteNvRamAllocation.RteNvmBlockRef to the
according NvBlockDescriptor. c(SRS_Rte_00177)
Please note: Thereby the relationship of an invocation to a specific NvBlockDe-
scriptor can be determined by following ways:
NvBlockDescriptor.timingEvent for the cyclic invocation
NvBlockDescriptor.clientServerPort where attribute role has the value
NvMService or NvMAdmin. In this case all OperationInvokedEvents ref-
erencing an operation in such a PPortPrototype are belonging to the
NvBlockDescriptor.
VariableDataPrototype instances in AbstractProvidedPortPrototype
mapped to the NvBlockDescriptor.ramBlock via an NvBlockDataMap-
ping. In this case all DataReceivedEvents referencing those Variable-
DataPrototype instances are belonging to the NvBlockDescriptor.
NvBlockDescriptor.modeSwitchEventTriggeredActivity for the mode
switch based invocation.
[SWS_Rte_06212] d The RTE generator shall ignore the given PortAPIOp-
tion with PortDefinedArgumentValue applied to a PPortPrototype of a
NvBlockSwComponentType when the BlockId value is determined according
[SWS_Rte_06211]. c(SRS_Rte_00177)

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Besides forwarding requests from the SW-C side to the NVM module via NvM ser-
vice ports, the NvBlockSwComponentType also supports the dirty flag mechanism
mentioned in chapter 4.2.9.3.1. In order to realize the behavior of the dirty flag mech-
anism the RTE implements RunnableEntitys for each NvBlockDescriptor that
can be triggered by RTEEvents. Depending on the writing strategy different kind of
RTEEvents will be used for triggering the RunnableEntitys.
The configuration of the NvBlockSwComponentType (i.e. defining RTEEvents for
triggering the RunnableEntitys for the NvBlockDescriptors and mapping of
RTEEvents to tasks) is usually not in the responsibility of the SW-C developer. For
this reason the SW-C developer can provide the required writing strategy in the Swc-
ServiceDependency.serviceNeeds by using the attributes storeAtShutdown,
storeCyclic, cyclicWritingPeriod, storeEmergency and storeImmediate
(for more details see Software Component Template [2]).
[SWS_Rte_08086] d The RTE generator shall implement RunnableEntitys for
each NvBlockDescriptor of an NvBlockSwComponentType with the attribute
dirtyFlagSupport set to true. c(SRS_Rte_00177, SRS_Rte_00245)
[SWS_Rte_08087] d The RunnableEntity of an NvBlockDescriptor shall be ac-
tivated by a TimingEvent if the attribute NvBlockNeeds.storeCyclic is set to
true. c(SRS_Rte_00177, SRS_Rte_00245)
[SWS_Rte_08088] d The RunnableEntity of an NvBlockDescriptor shall be ac-
tivated by a DataReceivedEvent if the attribute NvBlockNeeds.storeAtShut-
down or NvBlockNeeds.storeImmediate is set to true. c(SRS_Rte_00177,
SRS_Rte_00245)
[SWS_Rte_08111] d The RunnableEntity of an NvBlockDescriptor shall be ac-
tivated by a SwcModeSwitchEvent when the attribute NvBlockDescriptor.mod-
eSwitchEventTriggeredActivity exists. c(SRS_Rte_00177, SRS_Rte_00245)
[SWS_Rte_08089] d For NvBlockDescriptors which need to combine several writ-
ing strategies, i.e. several NvBlockNeeds attributes referring to a writing strategy
are set to true, the RunnableEntity of the NvBlockDescriptor shall be acti-
vated by one TimingEvent or DataReceivedEvent per writing strategy according
to the requirements [SWS_Rte_08087] and [SWS_Rte_08088]. c(SRS_Rte_00177,
SRS_Rte_00245)
[SWS_Rte_08090] d If no RteEventToTaskMapping is defined for DataRe-
ceivedEvents or SwcModeSwitchEvents which are responsible for activat-
ing RunnableEntitys of NvBlockDescriptors (see [SWS_Rte_08087] and
[SWS_Rte_08088]), the according activities shall be processed in the RTE code is-
suing the DataReceivedEvents or SwcModeSwitchEvents. For explicit communi-
cation this shall be done in the related Rte_Write function and for implicit commu-
nication in the task bodies where the preemption buffers are handled. For SwcMod-
eSwitchEvents using asynchronous mode switch procedure, this shall be done in
the related Rte_Switch function.

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Note: For SwcModeSwitchEvents a direct-call requires an asynchronous mode

switch.
c(SRS_Rte_00177, SRS_Rte_00245)

4.2.9.4 Data Consistency

A VariableDataPrototype contained in a NvBlockSwComponentType is ac-

cessed when SW-Cs read the value or write a new value. It is also accessed by the
NVM when read or write requests are processed by the NVM for the associated block.
The NVM does not access directly the VariableDataPrototypes, but shall use the
Rte_GetMirror, and Rte_SetMirror APIs specified in section 5.9.3
The RTE has to ensure the data consistency of the VariableDataPrototypes, with
any of the data consistency mechanisms defined in section 4.2.5. Depending on the
users input, an efficient scheduling with the use of implicit APIs should permit a low
resources (OS resources, RAM, and code) implementation.

4.3 Communication Paradigms

AUTOSAR supports two basic communication paradigms: Client-Server and Sender-
Receiver. AUTOSAR software-components communicate through well defined ports
and the behavior is statically defined by attributes. Some attributes are defined on
the modeling level and others are closely related to the network topology and must be
defined on the implementation level.
The RTE provides the implementation of these communication paradigms. For inter-
ECU communication the RTE uses the functionalities provided by COM. For inter-
Partition communication (within the same ECU) the RTE uses functionalities provided
by the IOC module. For intra-Partition the RTE provides the functionality on its own.
Both communication paradigms can be used together with data transformation which
is described in chapter 4.10.
With Sender-Receiver communication there are two main principles: Data Distribu-
tion and Event Distribution. When data is distributed, the last received value is of
interest (last-is-best semantics). When events are distributed the whole history of re-
ceived events is of interest, hence they must be queued on receiver side. Therefore
the software implementation policy can be queued or non queued. This is stated in the
swImplPolicy attribute of the SwDataDefProps, which can have the value queued
(corresponding to event distribution with a queue) or standard (corresponding to last-
is-best data distribution). If a data element has event semantics, the swImplPol-
icy is set to queued. The other possible values of this attribute correspond to data
semantics.

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[SWS_Rte_07192] d The RTE generator shall reject the configuration when an r-

port is connected to an r-port or a p-port is connected to a p-port with an
AssemblySwConnectorc(SRS_Rte_00018)
For example, a require port (r-port) of a component typed by an AUTOSAR sender-
receiver interface can read data elements of this interface. A provide port (p-port) of
a component typed by an AUTOSAR sender-receiver interface can write data elements
of this interface.
[SWS_Rte_07006] d The RTE generator shall reject the configuration violating the
[constr_1032], so when an r-port is connected to a p-port or a p-port is con-
nected to an r-port with a DelegationSwConnector. c(SRS_Rte_00018)
[SWS_Rte_08767] d In case of functionality depending on attributes of ComSpecs the
RTE Generator shall consider only the ComSpecs defined in the context of Atomic-
SwComponentTypes or ParameterSwComponentTypes. c(SRS_Rte_00018)

4.3.1 Sender-Receiver

4.3.1.1 Introduction

Sender-receiver communication involves the transmission and reception of signals con-

sisting of atomic data elements that are sent by one component and received by one
or more components. A sender-receiver interface can contain multiple data elements.
Sender-receiver communication is one-way - any reply sent by the receiver is sent as
a separate sender-receiver communication.
A require port (r-port) of a component typed by an AUTOSAR sender-receiver interface
can read data elements of this interface. A provide port (p-port) of a component typed
by an AUTOSAR sender-receiver interface can write data elements of this interface.

4.3.1.2 Receive Modes

The RTE supports multiple receive modes for passing data to receivers. The four
possible receive modes are:
Implicit data read access when the receivers runnable executes it shall
have access to a copy of the data that remains unchanged during the execution
of the runnable.
[SWS_Rte_06000] d For data elements specified with implicit data read access,
the RTE shall make the receive data available to the runnable through the se-
mantics of a copy. c(SRS_Rte_00128, SRS_Rte_00019)
[SWS_Rte_06001] d For data elements specified with implicit data read ac-
cess the receive data shall not change during execution of the runnable. c
(SRS_Rte_00128)

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When implicit data read access is used the RTE is required to make the data
available as a copy. It is not necessarily required to use a unique copy for each
runnable. Thus the RTE may use a unique copy of the data for each runnable
entity or may, if several runnables (even from different components) need the
same data, share the same copy between runnables. Runnable entities can only
share a copy of the same data when the scheduling structure can make sure the
contents of the data is protected from modification by any other party.
[SWS_Rte_06004] d The RTE shall read the data elements specified with im-
plicit data read access before the associated runnable entity is invoked. c
(SRS_Rte_00128)
Composite data types shall be handled in the same way as primitive data types,
i.e. RTE shall make a copy available for the RunnableEntity.
[SWS_Rte_06003] d The implicit data read access receive mode shall be valid
for all categories of runnable entity (i.e. 1A, 1B and 2). c(SRS_Rte_00134)
Explicit data read access the RTE generator creates a non-blocking API
call to enable a receiver to poll (and read) data. This receive mode is an explicit
mode since an explicit API call is invoked by the receiver.
The explicit data read access receive mode is only valid for category 1B or 2
runnable entities [SRS_Rte_00134].
wake up of wait point the RTE generator creates a blocking API call that the
receiver invokes to read data.
[SWS_Rte_06002] d The wake up of wait point receive mode shall support a
time-out to prevent infinite blocking if no data is available. c(SRS_Rte_00109,
SRS_Rte_00069)
The wake up of wait point receive mode is inherently only valid for a category 2
runnable entity.
A category 2 runnable entity is required since the implementation may need to
suspend execution of the caller if no data is available.
activation of runnable entity the receiving runnable entity is invoked auto-
matically by the RTE whenever new data is available. To access the new data, the
runnable entity either has to use implicit data read access or explicit data read
access, i.e. invoke an Rte_IRead, Rte_Read, Rte_DRead or Rte_Receive
call, depending on the input configuration. This receive mode differs from im-
plicit data read access since the receiver is invoked by the RTE in response to a
DataReceivedEvent.
[SWS_Rte_06007] d The activation of runnable entity receive mode shall be
valid for category 1A, 1B and 2 runnable entities. c(SRS_Rte_00134)
The validity of receive modes in conjunction with different categories of runnable entity
is summarized in Table 4.10.

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Receive Mode Cat 1A Cat 1B Cat 2

Implicit Data Read Access Yes Yes Yes
Explicit Data Read Access No Yes Yes
Wake up of wait point No No Yes
Activation of runnable entity Yes Yes Yes

Table 4.10: Receive mode validity

The category of a runnable entity is not an inherent property but is instead determined
by the features of the runnable. Thus the presence of explicit API calls makes the
runnable at least category 1B and the presence of a WaitPoint forces the runnable
to be category 2.

4.3.1.2.1 Applicability

The different receive modes are not just used for receivers in sender-receiver commu-
nication. The same semantics are also applied in the following situations:
Success feedback The mechanism used to return transmission acknowledg-
ments to a component. See Section 5.2.6.9.
Asynchronous client-server result The mechanism used to return the result
of an asynchronous client-server call to a component. See Section 5.7.5.4.

4.3.1.2.2 Representation in the Software Component Template

The following list serves as a reference for how the RTE Generator determines the
Receive Mode from its input [SRS_Rte_00109]. Note that references to the Vari-
ableDataPrototype within this sub-section will implicitly mean the Variable-
DataPrototype for which the API is being generated.
wake up of wait point A VariableAccess in the dataReceivePointBy-
Value or dataReceivePointByArgument role references a VariableDat-
aPrototype and a WaitPoint references a DataReceivedEvent which in
turn references the same VariableDataPrototype.
activation of runnable entity a DataReceivedEvent references the Vari-
ableDataPrototype and a runnable entity to start when the data is received.
explicit data read access A VariableAccess in the dataReceive-
PointByValue or dataReceivePointByArgument role references the
VariableDataPrototype.
implicit data read access A VariableAccess in the dataReadAccess
role references the VariableDataPrototype.

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It is possible to combine certain access methods; for example activation of runnable

entity can be combined with explicit or implicit data read access (indeed, one of these
pairings is necessary to cause API generation to actually read the datum) but it is an
input error if activation of runnable entity and wakeup of wait point are combined (i.e.
a WaitPoint references a DataReceivedEvent that references a runnable entity).
It is also possible to specify both implicit and explicit data read access simultaneously.
For details of the semantics of implicit data read access and explicit data read ac-
cess see Section 4.3.1.5.

4.3.1.3 Multiple Data Elements

A sender-receiver interface can contain one or more data elements. The transmission
and reception of elements is independent each data element, e.g. AUTOSAR signal,
can be considered to form a separate logical data channel between the provide port
and a require port.
[SWS_Rte_06008] d Each data element in a sender-receiver interface shall be sent
separately. c(SRS_Rte_00089)

Example 4.4

Consider an interface that has two data elements, speed and freq and that a compo-
nent template defines a provide port that is typed by the interface. The RTE generator
will then create two API calls; one to transmit speed and another to transmit freq.

Where it is important that multiple data elements are sent simultaneously they should
be combined into a composite data structure (Section 4.3.1.11.1). The sender then
creates an instance of the data structure which is filled with the required data before
the RTE is invoked to transmit the data.

4.3.1.3.1 Initial Values

[SWS_Rte_06009] d For each data element in an interface specified with data se-
mantics, the RTE shall support the initValue attribute. c(SRS_Rte_00108)
The initValue attribute is used to ensure that AUTOSAR software-components al-
ways access valid data even if no value has yet been received. This information is re-
quired for inter-ECU, inter-Partition, and intra-Partition communication. For inter-ECU
communication initial values can be handled by COM but for intra-ECU communication
RTE has to guarantee that initValue is handled.
In general, the specification of an initValue is mandatory for each data element
prototype with data semantics, see [SWS_Rte_07642]. If all senders and receivers
are located in the same partition, this restriction is relaxed, see [SWS_Rte_04501].

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[SWS_Rte_06010] d The RTE shall use any specified initial value to prevent the
receiver performing calculations based on invalid (i.e. uninitialized) values when
the swImplPolicy is not queued and if the general initialization conditions in
[SWS_Rte_07046] are fulfilled. c(SRS_Rte_00107)
The above requirement ensures that RTE API calls return the initialized value until a
real value has been received, possibly via the communication service. The require-
ment does not apply when event semantics are used since the implied state change
when the event data is received will mean that the receiver will not start to process
invalid data and would therefore never see the initialized value.
[SWS_Rte_04500] d An initial value cannot be specified when the implementation pol-
icy is set to queued attribute is specified as true. c(SRS_Rte_00107)
For senders, an initial value is not used directly by the RTE (since an AUTOSAR SW-C
must supply a value using Rte_Send) however it may be needed to configure the com-
munication service - for example, an un-initialised signal can be transmitted if multiple
signals are mapped to a single frame and the communication service transmits the
whole frame when any contained signal is sent by the application. Note that it is not
the responsibility of the RTE generator to configure the communication service.
It is permitted for an initial value to be specified for either the sender or receiver. In this
case the same value is used for both sides of the communication.
[SWS_Rte_04501] d If in context of one partition a sender specifies an initial value and
the receiver does not (or vice versa) the same initial value is used for both sides of the
communication. c(SRS_Rte_00108)
It is also permitted for both sender and receiver to specify an initial value. In this case
it is defined that the receivers initial value is used by the RTE generator for both sides
of the communication.
[SWS_Rte_04502] d If in context of one partition both receiver and sender specify an
initial value the specification for the receiver takes priority. c(SRS_Rte_00108)

4.3.1.4 Multiple Receivers and Senders

Sender-receiver communication is not restricted to communication connections be-

tween a single sender and a single receiver. Instead, sender receiver communica-
tion connection can have multiple senders (n:1 communication) or multiple receivers
(1:m communication) with the restrictions that multiple senders are not allowed for
mode switch notifications, see metamodel restriction [SWS_Rte_02670].
The RTE does not impose any co-ordination on senders the behavior of senders is
independent of the behavior of other senders. For example, consider two senders A
and B that both transmit data to the same receiver (i.e. n:1 communication). Trans-
missions by either sender can be made at any time and there is no requirement that
the senders co-ordinate their transmission. However, while the RTE does not impose

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any co-ordination on the senders it does ensure that simultaneous transmissions do

not conflict.
In the same way that the RTE does not impose any co-ordination on senders there is no
co-ordination imposed on receivers. For example, consider two receivers P and Q that
both receive the same data transmitted by a single sender (i.e. 1:m communication).
The RTE does not guarantee that multiple receivers see the data simultaneously even
when all receivers are on the same ECU.

4.3.1.5 Implicit and Explicit Data Reception and Transmission

[SWS_Rte_06011] d The RTE shall support explicit and implicit data recep-
tion and transmission. c(SRS_Rte_00019, SRS_Rte_00098, SRS_Rte_00129,
SRS_Rte_00128, SRS_Rte_00141)
Implicit data access transmission means that a runnable does not actively initiate the
reception or transmission of data. Instead, the required data is received automatically
when the runnable starts and is made available for other runnables at the earliest when
it terminates.
Explicit data reception and transmission means that a runnable employs an explicit
API call to send or receive certain data elements. Depending on the category of the
runnable and on the configuration of the according ports, these API calls can be either
blocking or non-blocking.

4.3.1.5.1 Implicit

Implicit Read
For the implicit reading of data, VariableAccesses aggregated with a dataReadAc-
cess role [SRS_Rte_00128], the data is made available when the runnable starts us-
ing the semantics of a copy operation and the RTE ensures that the copy will
not be modified until the runnable terminates.
If data transformation shall be executed for this data element, the data transformation
takes place after reception of the data from the Com stack and before start of the
runnable execution. (See [SWS_Rte_08570], [SWS_Rte_08108])
When a runnable R is started, the RTE reads all VariableDataPrototypes refer-
enced by a VariableAccess in the dataReadAccess role, if the data elements may
be changed by other runnables a copy is created that will be available to runnable R.
The runnable R can read the data element by using the RTE APIs for implicit read
(see the API description in Section 5.6.18). That way, the data is guaranteed not to
change (e.g. by write operations of other runnables) during the entire lifetime of R. If
several runnables (even from different components) need the data, they can share the
same buffer. This is only applicable when the scheduling structure can make sure the
contents of the data is protected from modification by any other party.

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Note that this concept implies that the runnable does in fact terminate. Therefore, while
implicit read is allowed for category 1A and 1B runnable entities as well as category 2
only the former are guaranteed to have a finite execution time. A category 2 runnable
that runs forever will not see any updated data.
VariableAccess in the dataReadAccess role is only allowed for VariableDat-
aPrototypes with their swImplPolicy different from queued ([constr_2020]).
Implicit Write
Implicit writing, VariableAccesses aggregated with a dataWriteAccess role
[SRS_Rte_00129], is the opposite concept. VariableDataPrototypes referenced
by a VariableAccess in the dataWriteAccess role are sent by the RTE after the
runnable terminates. The runnable can write the data element by using the RTE APIs
for implicit write (see the API description in Sect. 5.6.19 and 5.6.20). The sending is
independent from the position in the execution flow in which the Rte_IWrite is per-
formed inside the Runnable. When performing several write accesses during runnable
execution to the same data element, only the last one will be recognized. Here we
have a last-is-best semantics.
If data transformation shall be executed for this data element, the data transformation
takes place after termination of the runnable and before sending the data to the Com
stack. (See [SWS_Rte_08571], [SWS_Rte_08109])
[SWS_Rte_08418] d The content of a preemption area specific buffer which is used
exclusively for an implicit write access to a VariableDataPrototype shall
be initialized by the generated RTE with a copy of the global buffer between the be-
ginning of the task and the execution of the first RunnableEntity with access to this
VariableDataPrototype in the task. c(SRS_Rte_00129)
Note:
[SWS_Rte_08418] ensures that no undefined values are written back to a preemp-
tion area specific buffer at runnable termination if a VariableDataPrototype is
referenced by a VariableAccess in the dataWriteAccess role and no RTE API
for implicit write of this VariableDataPrototype is called during an execution of the
Runnable. For the first entry to the preemption area the "global buffer" will contain
the initValue of the VariableDataPrototype (if no initValue is configured
then the value will depend on the initialization strategy of the startup code). For sec-
ond and subsequent entries the "global buffer" will contain the previously written value
(if any).
[SWS_Rte_03570] d For VariableAccesses in the dataWriteAccess role the RTE
shall make the sent data available to others (other runnables, other AUTOSAR SWCs,
Basic SW, ..) with the semantics of a copy. c(SRS_Rte_00129)
[SWS_Rte_03571] d For VariableAccesses in the dataWriteAccess role the RTE
shall make the sent data available to others (other runnables, other AUTOSAR SWCs,
Basic SW, ..) at the earliest when the runnable has terminated. c(SRS_Rte_00129)

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[SWS_Rte_03572] d For VariableAccesses in the dataWriteAccess role several

accesses to the same VariableDataPrototype performed inside a runnable during
one runnable execution shall lead to only one transmission of the VariableDataPro-
totype. c(SRS_Rte_00129)
[SWS_Rte_03573] d If several VariableAccesses in the dataWriteAccess role
referencing the same VariableDataPrototype are performed inside a runnable
during the runnable execution, the RTE shall use the last value written. (last-is-best
semantics) c(SRS_Rte_00129)
A VariableAccess in the dataWriteAccess role is only sensible for runnable enti-
ties that are guaranteed to terminate, i.e. category 1A and 1B. If it is used for a category
2 runnable which does not terminate then no data write-back will occur.
[SWS_Rte_03574] d VariableAccess in the dataWriteAccess role shall be valid
for all categories of runnable entity. c(SRS_Rte_00129, SRS_Rte_00134)
To get common behavior in RTEs from different suppliers further requirements
defining the semantic of implicit communication exist:
Please note that the behavior of Implicit Communication can be adjusted with ECU
Configuration. For further information see section 7.7.
Implicit Communication Behavior in case of incoherent implicit data access
[SWS_Rte_03954] d The RTE generator shall use exactly one buffer to contain data
copies of the same VariableDataPrototype per preemption area for the im-
plementation of the copy semantic of incoherent implicit data access. c
(SRS_Rte_00128, SRS_Rte_00129, SRS_Rte_00134)
Requirement [SWS_Rte_03954] means that all runnable entities mapped to tasks of a
preemption area with a incoherent implicit read access or incoherent
implicit write access access the same buffers.
[SWS_Rte_03598] d For implicit communication, the RTE shall provide a single shared
read/write buffer when no runnable entity mapped to tasks of the preemption area
has VariableAccess in both incoherent implicit read access and inco-
herent implicit write access referencing the same VariableDataProto-
type. c(SRS_Rte_00128, SRS_Rte_00129)
If either the sender or the receiver uses a data element with status and the
other uses a data element without status, a data element with status
can be implemented and casted in the component data structure when a pointer to a
data element without status is needed.
[SWS_Rte_03955] d For implicit communication, in case that dedicated RPortPro-
totype and PPortPrototype are used, separate read and write buffers shall be
used when at least one RunnableEntity mapped to tasks of the preemption
area has implicit read access and implicit write access referencing
the same VariableDataPrototype. c(SRS_Rte_00128, SRS_Rte_00129)

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In the case that a RunnableEntity defines dataWriteAccess and dataReadAc-

cess to the same VariableDataPrototype in the context of a PRPortPrototype
[SWS_Rte_03955] does not apply. In such configuration the writing RunnableEntity
immediately sees its own updates of the data values even before the RunnableEn-
tity has terminated.
[SWS_Rte_08408] d If a RunnableEntity has both dataWriteAccess and
dataReadAccess to a VariableDataPrototype in the context of a PRPort-
Prototype the result of the write access shall be immediately visible to subse-
quent read accesses from within the same RunnableEntity. c(SRS_Rte_00128,
SRS_Rte_00129)
Please note that the content of the write buffers are copied into the read buffer of the
preemption area after the RunnableEntity with the write access terminates (see
[SWS_Rte_07041]). Therefore the write buffer might be implemented as temporary
buffer.
[SWS_Rte_03599] d For implicit communication with incoherent implicit data
access all readers within a preemption area shall access the same buffer. c
(SRS_Rte_00128)
[SWS_Rte_03953] d For implicit communication with incoherent implicit data
access all writers within a preemption area shall access the same buffer. c
(SRS_Rte_00129)
The content of a shared buffer (see [SWS_Rte_03598]) is not guaranteed to stay con-
stant during the whole task since a writer will change the shared copy and hence
readers mapped in the task after the writer will access the updated copy. When buffers
are shared, written data is visible to other RunnableEntitys within the same execu-
tion of the task. However since no runnable within the task will both read and write the
same buffer ([SWS_Rte_03598] and [SWS_Rte_03955]) consistency within a runnable
is ensured.
When separate buffers used for implicit communication (see [SWS_Rte_03955]) any
data written by a runnable is not visible (to either other RunnableEntitys or to the
writing runnable) until the data is written back after the runnable has terminated.
Implicit Communication Behavior in case of coherent implicit data access
[SWS_Rte_07062] d The RTE generator shall use exactly one buffer to contain data
copies of the same VariableDataPrototype per coherency group for the im-
plementation of the copy semantic of coherent implicit data access. c
(SRS_Rte_00128, SRS_Rte_00129, SRS_Rte_00134)
Requirement [SWS_Rte_07062] means that all runnable entities with coherent im-
plicit data accesses access the same buffers. Please note that it is only sup-
ported to group implicit read accesses or implicit write accesses of
RunnableEntitys executed in the same OS Task. Therefore a coherent im-
plicit data access results in a task local buffer as it was specified in previous

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AUTOSAR releases. With this means a backward compatible bahavior of the RTE can
be ensured.
Please note that [SWS_Rte_03955] applies as well for coherent implicit data access.
[SWS_Rte_07062] includes already that a single shared read/write buffer shall be used
when no runnable entity has coherent implicit read access and coherent
implicit write access belonging to the same coherency group.
Implicit Communication buffer handling
The preemption area specific buffer should not be updated or made available more
often than required. The following requirements detail how to obtain that for read and
write access.
[SWS_Rte_03956] d The content of a preemption area specific buffer used for an
incoherent implicit read access to a data element shall be filled with actual
data by a copy action between the beginning of the task and the execution of the first
RunnableEntity with access to this data element in the task. c(SRS_Rte_00128)
[SWS_Rte_07020] d If the RteImmediateBufferUpdate = TRUE is configured for a
incoherent implicit read access to a data element the content of a preemp-
tion area specific buffer used for that VariableAccess shall be filled with actual
data by a copy action immediately before the RunnableEntity with the related im-
plicit read access to the data element starts. c(SRS_Rte_00128)
[SWS_Rte_07041] d The content of a separate write buffer (see [SWS_Rte_03955])
modified by a incoherent implicit write access of a RunnableEntity
shall be made available to RunnableEntitys using a implicit read access
allocated in the same preemption area immediately after the execution of the
RunnableEntity with the related implicit write access to the data element.
c(SRS_Rte_00129)
[SWS_Rte_03957] d The content of a preemption area specific buffer modified by
a incoherent implicit write access in one task shall be made available to
RunnableEntitys using an implicit read access allocated in other preemp-
tion areas at latest after the execution of the last RunnableEntity mapped to the
task. c(SRS_Rte_00129)
[SWS_Rte_07021] d If the RteImmediateBufferUpdate = TRUE is configured for a
incoherent implicit write access the content of a preemption area spe-
cific buffer shall be made available to RunnableEntitys using a implicit read
access allocated in other preemption areas immediately after the execution of the
RunnableEntity with the related implicit write access to the data element.
c(SRS_Rte_00129)
Note:
Its the semantic of implicit communication that a VariableAccess in the
dataWriteAccess role is interpreted as writing the whole dataElement.
Explicit Schedule Points defined by RteOsSchedulePoints are placed be-
tween RunnableEntitys after the data written with implicit write access by the

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RunnableEntity are propagated to other RunnableEntitys and before the

preemption area specific buffer used for a implicit read access of the suc-
cessor RunnableEntity are filled with actual data by a copy action according
[SWS_Rte_07020]. This ensures that the data produced by one RunnableEn-
tity is propagated before RunnableEntitys assigned to other Os Tasks are ac-
tivated due to Task scheduling caused by the explicit Schedule Point. See as well
[SWS_Rte_07042] and [SWS_Rte_07043].
The requirements regarding buffer handling for implicit communication do not apply in
case of filters. Buffer handling of RTE for filters is specified in chapter 4.3.1.9 (require-
ments: [SWS_Rte_08077], [SWS_Rte_08078] and [SWS_Rte_08079]).
Implicit Communication buffer handling for coherent implicit data access
[SWS_Rte_07063] d The content of a coherency group specific buffer used for an
coherent implicit read access to one or more data elements shall be filled
with actual data by a copy action between the beginning of the task and the execution
of the first RunnableEntity in the task with a coherent implicit read access
belonging to the coherency group. c(SRS_Rte_00128)
[SWS_Rte_07064] d If the RteImmediateBufferUpdate = TRUE is configured for
coherent implicit read accesses the content of a coherency group spe-
cific buffer used for these VariableAccesses shall be filled with actual data by a
copy action immediately before the first RunnableEntity in the task with a co-
herent implicit read access belonging to the coherency group starts. c
(SRS_Rte_00128)
[SWS_Rte_07065] d The content of a separate write buffer (see [SWS_Rte_03955])
modified by a coherent implicit write access of a RunnableEntity shall
be made available to RunnableEntitys using a coherent implicit read ac-
cess belonging to the same coherency group immediately after the execution of
the RunnableEntity with the related coherent implicit write access. c
(SRS_Rte_00129)
[SWS_Rte_07066] d The content of a coherency group specific buffer modified by
coherent implicit write accesses in one task shall be made available to other
RunnableEntitys at earliest after the execution of the last RunnableEntity with
a coherent implicit write access belonging to this coherency group. c
(SRS_Rte_00129)
[SWS_Rte_07067] d The content of a coherency group specific buffer modified by
coherent implicit write accesses in one task shall be made available to other
RunnableEntitys at latest after the execution of the last RunnableEntity mapped
to the task. c(SRS_Rte_00129)
[SWS_Rte_07068] d If the RteImmediateBufferUpdate = TRUE is configured for a
coherent implicit write accesses the content of a coherency group spe-
cific buffer modified by coherent implicit write accesses in one task shall be
made available to other readers not belonging to this coherency group immediately

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after the execution of the last RunnableEntity with a coherent implicit write
access belonging to this coherency group c(SRS_Rte_00129)
Handling of ConsistencyNeeds
ConsistencyNeeds are not directly processed by the RTE Generator but provid-
ing an important information for the correct configuration of the RTE and OS with
respect to preemption, RteEventToTaskMapping and RteImplicitCommunica-
tion. Therefore following constraints apply:
[SWS_Rte_CONSTR_09001] Whole DataPrototypeGroup in role dpgRe-
quiresCoherency shall be propagated coherently d
All RunnableEntitys in a RunnableEntityGroup with dataWriteAccess to
data belonging to the same DataPrototypeGroup in the role dpgRequiresCo-
herency shall
Be mapped to the same OS Task
AND shall
A) either be scheduled in a way that these RunnableEntitys can not be inter-
rupted by RunnableEntitys with dataReadAccess to (more than one) data
belonging to the DataPrototypeGroup.
B) or the RteImplicitCommunication shall be configured to ensure a coher-
ent propagation (RteCoherentAccess == true) for reading RunnableEntitys
4
.
c()
Please note that the interruption of RunnableEntitys and between RunnableEn-
titys depends from many factors like the configuration of the OS and the configura-
tion of the RTE (e.g. RteOsSchedulePoint).
[SWS_Rte_CONSTR_09002] The whole DataPrototypeGroup shall be read sta-
ble for the whole RunnableEntityGroup in the role regRequiresStability
d.
All RunnableEntitys with dataReadAccess to data belonging to the same Dat-
aPrototypeGroup and which are belonging to the same RunnableEntityGroup
in the role regRequiresStability shall
either be configured in a way that the chain of RunnableEntitys with
dataReadAccess to the data of the DataPrototypeGroup can not be inter-
rupted by any of the RunnableEntity(s) with dataWriteAccess to data of
the DataPrototypeGroup
4
RunnableEntitys with have as well dataWriteAccess to data belonging to the DataProto-
typeGroup are excluded because inside the calculation chain the latest data values are visible

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or the RteImplicitCommunication shall be configured to ensure stable data

values (RteCoherentAccess == true) for reading RunnableEntitys belong-
ing to the RunnableEntityGroup.
c()
Examples
Following examples shall illustrate how ConsistencyNeeds can be implemented with
either scheduling or coherency groups.

Example 4.5

Common definition of PortInterfaces

In order to simplify the examples all PortInterfaces are of type Sender-
ReceiverInterface and contain exactly one VariableDataPrototype with iden-
tical shortName. For example SenderReceiverInterface "A" contains Vari-
ableDataPrototype "A"
Additionally the shortName of the SenderReceiverInterface is identical to the
shortName of the PortPrototype. For example PPortPrototype "A" is typed by
SenderReceiverInterface "A".

Example 4.6

Stability need for received data

Setup of SWCs
ApplicationSwComponentType "ASWC_A" with the PPortPrototypes: "A","B"
and the RunnableEntity "ASWC_A_RUN1" which in turn has following
dataWriteAccesses
"DWP_ASWC_A_RUN1_A_A" referencing VariableDataPrototype "A" in
PPortPrototype "A"
"DWP_ASWC_A_RUN1_B_B" referencing VariableDataPrototype "B" in
PPortPrototype "B"

ApplicationSwComponentType "ASWC_B" with the RPortPrototypes: "A","B"

and the RunnableEntity "ASWC_B_RUN1" which in turn has dataReadAccesses
"DRP_ASWC_B_RUN1_A_A" referencing VariableDataPrototype "A" in
RPortPrototype "A"
"DRP_ASWC_B_RUN1_B_B" referencing VariableDataPrototype "B" in
RPortPrototype "B"

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ApplicationSwComponentType "ASWC_C" with the RPortPrototypes: "A","B"

and the RunnableEntity "ASWC_C_RUN1" which in turn has dataReadAccesses
"DRP_ASWC_C_RUN1_A_A" referencing VariableDataPrototype "A" in
RPortPrototype "A"
"DRP_ASWC_C_RUN1_B_B" referencing VariableDataPrototype "B" in
RPortPrototype "B"

The ConsistencyNeeds "CN_BC" defines a RunnableEntityGroup in the role

regRequiresStability with the members "ASWC_B_RUN1", "ASWC_C_RUN1"
In addition the ConsistencyNeeds "CN_BC" defines a DataPrototypeGroup
in the role dpgDoesNotRequireCoherency to the VariableDataPrototypes
ASWC_B.A.A.A, ASWC_C.A.A.A, ASWC_B.B.B.B and ASWC_C.B.B.B The com-
plete example is listed as ARXML in Appendix F.2.

Assuming now a configuration:

ASWC_A_RUN1 is mapped to OsTask T10MS
ASWC_B_RUN1 is mapped to OsTask T100MS
ASWC_C_RUN1 is mapped to OsTask T100MS
where T10MS can NOT interrupt T100MS during the execution of ASWC_B_RUN1 and
ASWC_C_RUN1. This configuration fulfills [SWS_Rte_CONSTR_09002] with respect to
"CN_BC" due the scheduling conditions. Since the producer of "A" and "B" can NOT
interrupt the RunnableEntitys with the dataReadAccesses it is guaranteed that
the value for all accesses of ASWC_B_RUN1 and ASWC_C_RUN1 to the same data is
identical (and therefore stable) during one execution of OsTask T100MS.
Assuming now a configuration:
ASWC_A_RUN1 is mapped to OsTask T10MS
ASWC_B_RUN1 is mapped to OsTask T100MS + RteOsSchedulePoint == UNCON-
DITIONAL
ASWC_C_RUN1 is mapped to OsTask T100MS
where T10MS can interrupt T100MS after the execution of ASWC_B_RUN1. With-
out further means this configuration would violate [SWS_Rte_CONSTR_09002] due
the scheduling conditions. Since the producer of "A" and "B" can interrupt the
RunnableEntitys with the dataReadAccesse it is not guaranteed that the value
for all accesses of ASWC_B_RUN1 and ASWC_C_RUN1 to the same data is kept stable
during one execution of OsTask T100MS.
With the additional configuration RteImplicitCommunication "CN_BC_A":
RteVariableReadAccessRef referencing "DRP_ASWC_B_RUN1_A_A"

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RteVariableReadAccessRef referencing "DRP_ASWC_C_RUN1_A_A"

RteCoherentAccess = true
and

RteImplicitCommunication "CN_BC_B":
RteVariableReadAccessRef referencing "DRP_ASWC_B_RUN1_B_B"
RteVariableReadAccessRef referencing "DRP_ASWC_C_RUN1_B_B"
RteCoherentAccess = true
"ASWC_B_RUN1_A_A" and "ASWC_C_RUN1_A_A" as well as "ASWC_B_RUN1_B_B"
and "ASWC_C_RUN1_B_B" are in the same coherency group. Therefore the read
data values for "A" and "B" are from the same age in one execution of OsTask
T100MS for ASWC_B_RUN1 and ASWC_C_RUN1.
Please note, since it is not requested that data "A" and "B" are communicated coher-
ently the setup of RteImplicitCommunication for "A" and "B" can be handled
independently from each other. In particular if there a further RunnableEntitys with
dataReadAccesses to "A" or "B" mapped to the OsTask T100MS the buffers for
"A" and "B" can be loaded at different points in the execution sequence. Further on
it is not requested that "A" and "B" is produced in the same recurrence as it is show
in this example.

Example 4.7

Coherency need and stability need for received data

Setup of SWCs
ApplicationSwComponentType "ASWC_H" with the PPortPrototype: "X"
and the RunnableEntity "ASWC_H_RUN1" which in turn has following
dataWriteAccesses
"DWP_ASWC_H_RUN1_X_X" referencing VariableDataPrototype "X" in
PPortPrototype "X"

ApplicationSwComponentType "ASWC_I" with the RPortPrototype: "Y"

and the RunnableEntity "ASWC_I_RUN1" which in turn has following
dataWriteAccesses
"DWP_ASWC_I_RUN1_Y_Y" referencing VariableDataPrototype "Y" in
RPortPrototype "Y"

ApplicationSwComponentType "ASWC_J" with the RPortPrototypes: "X","Y"

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and the RunnableEntity "ASWC_J_RUN1" which in turn has following

dataReadAccesses
"DRP_ASWC_J_RUN1_X_X" referencing VariableDataPrototype "X" in
RPortPrototype "X"
"DRP_ASWC_J_RUN1_Y_Y" referencing VariableDataPrototype "Y" in
RPortPrototype "Y"

ApplicationSwComponentType "ASWC_K" with the RPortPrototype: "X"

and the RunnableEntity "ASWC_K_RUN1" which in turn has following
dataReadAccesses
"DRP_ASWC_K_RUN1_X_X" referencing VariableDataPrototype "X" in
RPortPrototype "X"

The ConsistencyNeeds "CN_J" defines a RunnableEntityGroup in the role

regDoesNotRequireStability with the member "ASWC_I_RUN1" In addi-
tion the ConsistencyNeeds "CN_J" defines a DataPrototypeGroup in the
role dpgRequiresCoherency to the VariableDataPrototypes ASWC_J.X.X.X,
ASWC_K.Y.Y.Y
The ConsistencyNeeds "CN_JK" defines a RunnableEntityGroup in the role
regRequiresStability with the member "ASWC_I_RUN1", "ASWC_J_RUN1"
In addition the ConsistencyNeeds "CN_JK" defines a DataPrototypeGroup
in the role dpgDoesNotRequireCoherency to the VariableDataPrototypes
ASWC_J.X.X.X, ASWC_K.X.X.X
Assuming now a configuration:
ASWC_H_RUN1 is mapped to OsTask T100MS + RteOsSchedulePoint == UNCON-
DITIONAL
ASWC_I_RUN1 is mapped to OsTask T100MS
ASWC_J_RUN1 is mapped to OsTask T10MS
ASWC_K_RUN1 is mapped to OsTask T10MS
where T10MS can interrupt T100MS Without further means this configuration would
violate [SWS_Rte_CONSTR_09001] with respect to "CN_J" due to the scheduling
conditions. Since the consumer of "X" and "Y" can interrupt the RunnableEntitys
witch are producing "X" and "Y"it is not guaranteed that the value for all accesses of
ASWC_J_RUN1 and ASWC_K_RUN1 returning data of the same age during one execu-
tion of OsTask T10MS. The ConsistencyNeeds "CN_JK" is already fulfilled since
the consumers "ASWC_J_RUN1" and "ASWC_K_RUN1" cant be interrupted by the
producing RunnableEntity ASWC_H_RUN1
With the additional configuration RteImplicitCommunication "CN_J":

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RteVariableWriteAccessRef referencing "DWP_ASWC_H_RUN1_X_X"

RteVariableReadAccessRef referencing "DWP_ASWC_I_RUN1_Y_Y"
RteCoherentAccess = true
the write accesses to "X" and "Y" are in the same coherency group. Due to this
"CN_J" is fulfilled since the propagation of "X" and "Y" is delayed until the termination
of ASWC_I_RUN1.

4.3.1.5.2 Explicit

The behavior of explicit reception depends on the category of the runnable and on the
configuration of the according ports.
An explicit API call can be either non-blocking or blocking. If the call is non-blocking
(i.e. there is a VariableAccess in the dataReceivePointByValue or dataRe-
ceivePointByArgument role referencing the VariableDataPrototype for which
the API is being generated, but no WaitPoint referencing a DataReceivedEvent
which references the VariableDataPrototype for which the API is being gener-
ated), the API call immediately returns the next value to be read and, if the communi-
cation is queued (event reception), it removes the data from the receiver-side queue,
see Section 4.3.1.10
[SWS_Rte_06012] d A non-blocking RTE API read call shall indicate if no data is
available. c(SRS_Rte_00109)
In contrast, a blocking call (i.e. the VariableDataPrototype, referenced by a
VariableAccess in the role dataReceivePointByArgument, and for which the
API is being generated, is referenced by a DataReceivedEvent which is itself refer-
enced by a WaitPoint) will suspend execution of the caller until new data arrives (or
a timeout occurs) at the according port. When new data is received, the RTE resumes
the execution of the waiting runnable. ([SRS_Rte_00092])
To prevent infinite waiting, a blocking RTE API call can have a timeout applied. The RTE
monitors the timeout and if it expires without data being received returns a particular
error status.
[SWS_Rte_06013] d A blocking RTE API read call shall indicate the expiry of a time-
out. c(SRS_Rte_00069)
The timeout expired indication also indicates that no data was received before the
timeout expired.
Blocking reception of data (wake up of wait point receive mode as described in Sec-
tion 4.3.1.2) is only applicable for category 2 runnables whereas non-blocking reception
(explicit data read access receive mode) can be employed by runnables of category
2 or 1B. Neither blocking nor non-blocking explicit reception is applicable for category

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1A runnable because they must not invoke functions with unknown execution time (see
table 4.10).
[SWS_Rte_06016] d The RTE API call for explicit sending (VariableAccessin the
dataSendPoint role, [SRS_Rte_00098]) shall be non-blocking. c(SRS_Rte_00098)
Using this API call, the runnable can explicitly send new values of the VariableDat-
aPrototype.
Explicit writing is valid for runnables of category 1b and 2 only. Explicit writing is not al-
lowed for a category 1A runnable since these require API calls with constant execution
time (i.e. macros).
Although the API call for explicit sending is non-blocking, it is possible for a cate-
gory 2 runnable to block waiting for a notification whether the (explicit) send oper-
ation was successful. This is specified by the AcknowledgementRequest attribute
and occurs by a separate API call Rte_Feedback. If the feedback method is
wake_up_of_wait_point, the runnable will block and be resumed by the RTE either
when a positive or negative acknowledgment arrives or when the timeout associated
with the WaitPoint expires.

4.3.1.5.3 Concepts of data access

Tables 4.11 and 4.12 summarize the characteristics of implicit versus explicit data re-
ception and transmission.
Implicit Read Explicit Read
Receiving of data element values is Runnable decides when and how often
performed only once when runnable a data element value is received
starts
Values of data elements do not change Runnable can always decide to receive
while runnable is running. the latest value
Several API calls to the same signal Several API calls to the same signal
always yield the same data element may yield different data element values
value
Runnable must terminate (all cate- Runnable is of cat. 1B or 2
gories)

Table 4.11: Implicit vs. explicit read

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Implicit Write Explicit Write

Sending of data element values is only Runnable can decide when sending of
done once after runnable returns data element values is done via the
API call
Several usages of the API call inside Several usages of the API call inside
the runnable cause only one data ele- the runnable cause several transmis-
ment transmission sions of the data element content. (De-
pending on the behavior of COM, the
number of API calls and the number
of transmissions are not necessarily
equal.)
Runnable must terminate (all cate- Runnable is cat. 1B or 2
gories)

Table 4.12: Implicit vs. explicit write

4.3.1.6 Transmission Acknowledgement

When TransmissionAcknowledgementRequest is specified, the RTE will inform

the sending component if the data has been sent correctly or not. Note that a posi-
tive transmission acknowledgement gives no guaranty that the data is actually sent on
a physical bus nor that it has been received correctly by the corresponding receiver
AUTOSAR software-component. Instead the transmission acknowledgement just con-
firms that the data was accepted for transmission and subsequent transmissions will
not override the sent data.
[SWS_Rte_05504] d The RTE shall support the use of TransmissionAcknowl-
edgementRequest independently for each data item of an AUTOSAR software-
components AUTOSAR interface. c(SRS_Rte_00122)
[SWS_Rte_08076] d The RTE generator shall reject configurations violating [con-
str_3074] in System Template [8]. c(SRS_Rte_00122, SRS_Rte_00018)
[SWS_Rte_07927] d The RTE generator shall reject configurations violating [con-
str_1256] in Software Component Template [2]. c(SRS_Rte_00122, SRS_Rte_00018)
The result of the feedback can be collected using wake up of wait point, explicit data
read access, implicit data read access or activation of runnable entity.
The TransmissionAcknowledgementRequest allows to specify a time-out.
[SWS_Rte_03754] d If TransmissionAcknowledgementRequest is specified, the
RTE shall ensure that time-out monitoring is performed, regardless of the receive mode
of the acknowledgment. c(SRS_Rte_00069, SRS_Rte_00122)
For inter-ECU communication, AUTOSAR COM provides the necessary functionality,
for intra-ECU communication, the RTE has to implement the time-out monitoring.

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If a WaitPoint is specified to collect the acknowledgment, two time-out values have

to be specified, one for the TransmissionAcknowledgementRequest and one for
the WaitPoint.
[SWS_Rte_03755] d The RTE generator shall reject the configuration, violating the
[constr_2033]. c(SRS_Rte_00018) The DataSendCompletedEvent associated with
the VariableAccess in the dataSendPoint role for a VariableDataPrototype
shall indicate that the transmission was successful or that the transmission was not
successful. The status information about the success of the transmission shall be
available as the return value of the generated RTE API call.
[SWS_Rte_03756] d For each transmission of a VariableDataPrototype only one
acknowledgment shall be passed to the sending component by the RTE. The acknowl-
edgment indicates either that the transmission was successful or that the transmission
was not successful. c(SRS_Rte_00122)
[SWS_Rte_03757] d The status information about the success or failure of the trans-
mission shall be available as the return value of the RTE API call to retrieve the ac-
knowledgment. c(SRS_Rte_00122)
[SWS_Rte_03604] d The status information about the success or failure of the trans-
mission shall be buffered with last-is-best semantics. When a data item is sent, the
status information is reset. c(SRS_Rte_00122)
[SWS_Rte_03604] implies that once the DataSendCompletedEvent has occurred,
repeated API calls to retrieve the acknowledgment shall always return the same result
until the next data item is sent.
[SWS_Rte_03758] d If the time-out value of the TransmissionAcknowledgemen-
tRequest is 0, no time-out monitoring shall be performed. c(SRS_Rte_00069,
SRS_Rte_00122)

4.3.1.7 Communication Time-out

When sender-receiver communication is performed using some physical network there

is a chance this communication may fail and the receiver does not get an update of data
(in time or at all). To allow the receiver of a data element to react appropriately to
such a condition the SW-C template allows the specification of a time-out which the
infrastructure shall monitor and indicate to the interested software components.
A data element is the actual information exchanged in case of sender-receiver commu-
nication. In the COM specification this is represented by a ComSignal. In the SW-C
template a data element is represented by the instance of a VariableDataProto-
type.
When present, the aliveTimeout attribute5 enables the monitoring of the timely re-
ception of the data element with data semantics transmitted over the network.
5
This attribute is called LIVELIHOOD in the VFB specification

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[SWS_Rte_08061] d If the aliveTimeout attribute is present

the RTE shall provide the RTE COM Rx time-out callback
(Rte_COMCbkRxTOut_<sg> or Rte_COMCbkRxTOut_<sn>). c(SRS_Rte_00147)
The monitoring functionality is provided by the COM module, the RTE transports the
event of reception time-outs to software components as data element outdated. The
software components can either subscribe to that event (activation of runnable entity)
or get that situation passed by the implicit and explicit status information (using API
calls).
[SWS_Rte_08062] d If COM indicates a reception time-out (via RTE COM Rx time-out
callback) the RTE shall raise an event of reception time-out to software components as
data element outdated. c(SRS_Rte_00147)
[SWS_Rte_05021] d The RTE shall have time-out monitoring disabled for communi-
cations local to the partition, independently of the presence of aliveTimeout. c
(SRS_Rte_00147)
In such case, The RTE does not raise events of reception time-out to software compo-
nents.
Therefore the Software Component shall not rely in its functionality on the time-out
notification, because for local communication the notification will never occur. Time-
out notification is intended as pure error reporting.
[SWS_Rte_02710] d If aliveTimeout is present, and the communication is between
different partitions of the same ECU, time-out monitoring is disabled. Instead, a time-
out notification of the receiver will occur immediately, when the partition of the sender
is stopped and the last correctly received value shall be provided to the software com-
ponents. c(SRS_Rte_00147)
Therefore the Software Component shall not rely in its functionality on the time-out
notification, because for local communication the notification will never occur. Time-
out notification is intended as pure error reporting.
[SWS_Rte_03759] d If the aliveTimeout attribute is 0, no time-out monitoring shall
be performed. c(SRS_Rte_00069, SRS_Rte_00147)
[SWS_Rte_08004] d If a signal is received, even if the signal is marked as invalid, the
time-out for the same signal shall be restarted. c(SRS_Rte_00078, SRS_Rte_00147)
Note: time-out detection may already be implemented by COM. Nevertheless this is
the expected behavior towards the software components.
The time-out support (called deadline monitoring in COM) provided by COM has
some restrictions which have to be respected when using this mechanism. Since the
COM module is configured based on the System Description the restrictions mainly
arise from the data element to I-PDU mapping. This already has to be considered
when developing the System Description and the RTE Generator can only provide
warnings when inconsistencies are detected. Therefore the RTE Generator needs to
have access to the configuration information of COM.

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In case time-out is enabled on a data element with update bit, there shall
be a separate time-out monitoring for each data element with an update bit
[SWS_Com_00292].
There shall be an I-PDU based time-out for data elements without an update bit
[SWS_Com_00290]. For all data elements without update bits within the same I-PDU,
the smallest configured time-out of the associated data elements is chosen as time-out
for the I-PDU [SWS_Com_00291]. The notification from COM to RTE is performed per
data element.
In case one data element coming from COM needs to be distributed to several
AUTOSAR software-components the AUTOSAR Software Component Template allows
to configure different aliveTimeout values at each Port. In this case the RTE has to
ensure that the time-out notifications for each port will occur according to the configured
aliveTimeout value in the NonqueuedReceiverComSpec.
[SWS_Rte_08103] d The RTE shall pass time-out notifications to the SW-Cs accord-
ing to the configured aliveTimeout values in the NonqueuedReceiverComSpec.
Depending on the configuration of the COM module following rules shall apply:
ComSignal.ComTimeout/ComSignalGroup.ComTimeout configured to 0: No
time-out notifications shall occur.
ComSignal.ComTimeout/ComSignalGroup.ComTimeout not configured to 0
(ComSignals/ComSignalGroups with update bits): Time-out notifications shall
occur according to the greatest multiple of the ComSignal.ComTimeout/Com-
SignalGroup.ComTimeout value of the associated ComSignal/ComSignal-
Group lower than or equal to the aliveTimeout value in the Nonqueue-
dReceiverComSpec.
I-PDU based time-out not equal to 0 (ComSignals/ComSignalGroups without
update bits): Time-out notifications shall occur according to the greatest multiple
of the I-PDU based time-out value lower than or equal to the aliveTimeout
value in the NonqueuedReceiverComSpec.
c(SRS_Rte_00147)
Following example illustrates how the value of the ComTimeout parameter of a Com-
Signal is derived and the time-out monitoring in RTE is performed in case one data
element coming from COM needs to be distributed to several SW-Cs.
Consider 3 SW-Cs receiving same data element with different aliveTimeout values
specified in the NonqueuedReceiverComSpec:
SW-C1: aliveTimeout = 500ms
SW-C2: aliveTimeout = 0ms (or not specified)
SW-C3: aliveTimeout = 1200ms
The derived ComTimeout value of the ComSignal the data element is mapped to
will be in this case 500ms. I.e. the smallest aliveTimeout value of the associated

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SW-Cs (This value must be bigger or equal to the main function cycle of the COM
module).
The RTE will pass time-out notifications to the 3 SW-Cs in case of a reception time-out
indicated by COM as follows:
SW-C1: directly
SW-C2: no time-out notification
SW-C3: after 500ms (i.e. the RTE has to count internally further 500ms before
notifying SW-C3)
[SWS_Rte_08104] d The RTE shall implement a replacement strategy according to
the handleTimeoutType attribute defined by the NonqueuedReceiverComSpec in
each receiving SWC:
handleTimeoutType configured to none: SWC observes the latest received
value.
handleTimeoutType configured to replace: SWC observes the Nonqueue-
dReceiverComSpecs initValue.
c(SRS_Rte_00147)
Note: In the case of receiving SWCs with different handleTimeout-
Type values its expected that the related ComSignal/ComSignalGroup has
attribute ComSignal.ComRxDataTimeoutAction/ComSignalGroup.ComRxData-
TimeoutAction equal to NONE to ensure that the RTE always has access to the
last received value.

4.3.1.8 Data Element Invalidation

The Software Component template allows to specify whether a data element, de-
fined in an AUTOSAR Interface, can be invalidated by the sender. The communication
infrastructure shall provide means to set a data element to invalid and also indicate an
invalid data element to the receiving software components. This functionality is called
data element invalidation. For an overview see figure 4.48.
[SWS_Rte_05024] d If the handleInvalid attribute of the InvalidationPolicy
(when present) is set to keep, replace or externalReplacement the invalidation
support for this dataElement is enabled on sender side. The actual value used to
represent the invalid data element shall be specified in the Data Semantics part of the
data element definition defined in invalidValue6 . c(SRS_Rte_00078)
For data element invalidation, it is intended that the Rte_Invalidate() API is used
by the software component. Nevertheless, passing the invalid value as a parameter
of the Rte_Write() API may intentionally occur. In this case, the handleInvalid
6
When InvalidationPolicy is set to keep, replace or externalReplacement but there is
no invalidValue specified it is considered as an invalid configuration.

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is only allowed to be set to the value dontInvalidate in order to avoid undesired

behaviour and additional effort in the RTE implementation (see [TPS_SWCT_01646]
and [constr_1390]).
[SWS_Rte_05032] d On receiver side the handleInvalid attribute of the associated
InvalidationPolicy specifies how to handle the reception of the invalid value. c
(SRS_Rte_00078)
Data element invalidation is only supported for data elements with a swIm-
plPolicy different from queued. Configurations violating this constraint are rejected
by the RTE generator, see [SWS_Rte_06727].
[SWS_Rte_06727] d The RTE generator shall reject configurations which are violating
[constr_1219]. c(SRS_Rte_00078)
The API to set a dataElement to invalid shall be provided to the RunnableEntitys
on data element level.
In case an invalidated data element is received a software component can be notified
using the activation of runnable entity. If an invalidated data element is read by the
SW-C the invalid status shall be indicated in the status code of the API.
[SWS_Rte_08005] d If the initValue of an unqueued data element equals the
invalidValue and handleInvalid is set to keep and the handleNever-
Received is set to FALSE, the RTE APIs Rte_Read() and Rte_IStatus()
shall return RTE_E_INVALID until first reception of data element. In this case
the APIs Rte_Read() and Rte_IRead() shall provide the invalidValue. c
(SRS_Rte_00078, SRS_Rte_00184)
[SWS_Rte_08008] d If the initValue of an unqueued data element equals
the invalidValue and handleInvalid is set to keep and the handleNev-
erReceived is not defined, the RTE APIs Rte_Read() and Rte_IStatus()
shall return RTE_E_INVALID until first reception of data element. In this case
the APIs Rte_Read() and Rte_IRead() shall provide the invalidValue. c
(SRS_Rte_00078, SRS_Rte_00184)
[SWS_Rte_08009] d If the initValue of an unqueued data element equals the in-
validValue and handleInvalid is set to keep and the handleNeverReceived
is set to TRUE, the RTE APIs Rte_Read() and Rte_IStatus() shall return
RTE_E_NEVER_RECEIVED until first reception of data element. In this case the APIs
Rte_Read() and Rte_IRead() shall provide the initValue. c(SRS_Rte_00078,
SRS_Rte_00184)
[SWS_Rte_08007] d The RTE Generator shall reject configurations in which the init-
Value of an unqueued data element equals the invalidValue and handleIn-
valid is set to replace. c(SRS_Rte_00078)
[SWS_Rte_08046] d If the initValue of an unqueued data element equals the in-
validValue and handleInvalid is set to dontInvalidate and the handleN-
everReceived is set to FALSE, the RTE APIs Rte_Read() and Rte_IStatus()
shall return RTE_E_OK until first reception of data element. In this case the APIs

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Rte_Read() and Rte_IRead() shall provide the initValue. c(SRS_Rte_00078,

SRS_Rte_00184)
[SWS_Rte_08047] d If the initValue of an unqueued data element equals the in-
validValue and handleInvalid is set to dontInvalidate and the handleN-
everReceived is not defined, the RTE APIs Rte_Read() and Rte_IStatus()
shall return RTE_E_OK until first reception of data element. In this case the APIs
Rte_Read() and Rte_IRead() shall provide the initValue. c(SRS_Rte_00078,
SRS_Rte_00184)
[SWS_Rte_08048] d If the initValue of an unqueued data element equals the in-
validValue and handleInvalid is set to dontInvalidate and the handleN-
everReceived is set to TRUE, the RTE APIs Rte_Read() and Rte_IStatus()
shall return RTE_E_NEVER_RECEIVED until first reception of data element. In this
case the APIs Rte_Read() and Rte_IRead() shall provide the initValue. c
(SRS_Rte_00078, SRS_Rte_00184)
[SWS_Rte_08096] d If the initValue of an unqueued data element equals
the invalidValue and handleInvalid is set to externalReplacement and
the handleNeverReceived is set to FALSE, the RTE APIs Rte_Read() and
Rte_IStatus() shall return RTE_E_OK until first reception of data element. In this
case the APIs Rte_Read() and Rte_IRead() shall provide the value sourced from
the ReceiverComSpec.replaceWith. c(SRS_Rte_00078, SRS_Rte_00184)
[SWS_Rte_08097] d If the initValue of an unqueued data element equals
the invalidValue and handleInvalid is set to externalReplacement and
the handleNeverReceived is not defined, the RTE APIs Rte_Read() and
Rte_IStatus() shall return RTE_E_OK until first reception of data element. In this
case the APIs Rte_Read() and Rte_IRead() shall provide the value sourced from
the ReceiverComSpec.replaceWith. c(SRS_Rte_00078, SRS_Rte_00184)
[SWS_Rte_08098] d If the initValue of an unqueued data element equals
the invalidValue and handleInvalid is set to externalReplacement and
the handleNeverReceived is set to TRUE, the RTE APIs Rte_Read() and
Rte_IStatus() shall return RTE_E_NEVER_RECEIVED until first reception of data
element. In this case the APIs Rte_Read() and Rte_IRead() shall provide
the value sourced from the ReceiverComSpec.replaceWith. c(SRS_Rte_00078,
SRS_Rte_00184)

4.3.1.8.1 Data Element Invalidation in case of Inter-ECU communication

Sender:
If data element invalidation is enabled and the communication is Inter-ECU:
explicit data transmission:
data transformation for this communication enabled: data element invalida-
tion will be performed by RTE.

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no data transformation enabled: data element invalidation will be performed

by COM (COM needs to be configured properly).
implicit data transmission: the RTE is responsible for flagging the implicit buffer
in the case of invalidation. An implicit valid transmission may occur before the
write back at the end of the task, resetting the invalidation flag. The actual data
element invalidation after runnable termination is done in COM.
Receiver:
If data element invalidation is enabled and the communication is Inter-ECU
and:
if all receiving software components requesting the same value for handleIn-
valid attribute of the InvalidationPolicy associated to one dataElement
and no data transformation is configured for the communication:
data element invalidation will be performed by COM (COM needs to be config-
ured properly), see [SWS_Rte_05026], [SWS_Rte_05048].
if the receiving software components requesting different values for handleIn-
valid attribute of the InvalidationPolicy associated to one dataElement
or data transformation is configured for the communication:
data element invalidation will be performed by RTE, see [SWS_Rte_07031],
[SWS_Rte_07032]. This can occur in case of 1:n communication where for one
connector a VariableAndParameterInterfaceMapping is applied to two
SenderReceiverInterfaces with different InvalidationPolicys for the
mapped VariableDataPrototype.
[SWS_Rte_05026] d If a data element has been received invalidated in case of Inter-
ECU communication and the attribute handleInvalid is set to keep for all receiving
software components and no data transformation is configured for the communication
the query of the value shall return the value provided by COM together with an indi-
cation of the invalid case. c(SRS_Rte_00078)
[SWS_Rte_08405] d In case of Inter-ECU communication with the attribute han-
dleInvalid set to keep for all receiving software components, the RTE shall raise
a DataReceiveErrorEvent in case of reception of a data element invalid. c
(SRS_Rte_00078)
[SWS_Rte_05048] d If a data element has been received invalidated in case of Inter-
ECU communication and the attribute handleInvalid is set to replace for all re-
ceiving software components the query of the value shall return the initValue
(ComDataInvalidAction is REPLACE [SWS_Com_00314]). c(SRS_Rte_00078)
[SWS_Rte_08406] d In case of Inter-ECU communication with the attribute han-
dleInvalid set to replace for all receiving software components, in case of re-
ception of a data element invalid, the RTE shall raise a DataReceivedEvent as if a
valid value would have been received. c(SRS_Rte_00078)
[SWS_Rte_07031] d If a data element has been invalidated in case of Inter-ECU com-
munication where receiving software components requesting different values for han-

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dleInvalid and the attribute handleInvalid is set to keep for a particular r-port
the query of the value shall return for the r-port the same value as if COM would
have handled the invalidation (copy COM behavior). c(SRS_Rte_00078)
[SWS_Rte_08407] d In case of Inter-ECU communication where receiving software
components requesting different values for the attribute handleInvalid and this at-
tribute is set to keep for a particular R-Port, in case of reception of a data element
invalid, the RTE shall raise a DataReceiveErrorEvent. c(SRS_Rte_00078)
[SWS_Rte_07032] d If a data element has been received invalidated in case of Inter-
ECU communication where receiving software components requesting different val-
ues for handleInvalid and the attribute handleInvalid is set to replace for an
particular r-port RTE shall perform the "invalid value substitution" with the init-
Value for the r-port. Then the reception will be handled as if a valid value would
have been received (activation of runnable entities using the DataReceivedEvent).
c(SRS_Rte_00078)
[SWS_Rte_08049] d If a data element has been received invalidated in case of Inter-
ECU communication and the attribute handleInvalid is set to dontInvalidate
the query of the value shall return the value provided by COM. Then the reception will
be handled as if a valid value would have been received (activation of runnable entities
using the DataReceivedEvent). c(SRS_Rte_00078)
[SWS_Rte_08099] d If a data element has been received invalidated in case of Inter-
ECU communication and the attribute handleInvalid is set to externalReplace-
ment for all receiving software components the query of the value shall return the
value sourced from the ReceiverComSpec.replaceWith (e.g. constant, NVRAM
parameter). c(SRS_Rte_00078)
[SWS_Rte_08100] d In case of Inter-ECU communication with the attribute han-
dleInvalid set to externalReplacement for all receiving software components,
in case of reception of a data element invalid, the RTE shall raise a DataReceivedE-
vent as if a valid value would have been received. c(SRS_Rte_00078)
[SWS_Rte_08101] d If a data element has been received invalidated in case of Inter-
ECU communication where receiving software components requesting different values
for handleInvalid and the attribute handleInvalid is set to externalReplace-
ment for an particular r-port RTE shall perform the "invalid value substitution" with
the value sourced from the ReceiverComSpec.replaceWith for the r-port. Then
the reception will be handled as if a valid value would have been received (activation
of runnable entities using the DataReceivedEvent). c(SRS_Rte_00078)

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4.3.1.8.2 Data Element Invalidation in case of Intra-ECU communication

Sender:
[SWS_Rte_05025] d If data element invalidation is enabled, and the commu-
nication is Intra-ECU, data element invalidation shall be implemented by the RTE. c
(SRS_Rte_00078)
The actual invalid value is specified in the SW-C template invalidValue.
Receiver:
[SWS_Rte_05030] d If a data element has been invalidated in case of Intra-ECU com-
munication and the attribute handleInvalid is set to keep the query of the value
shall return the same value as if COM would have handled the invalidation (copy COM
behavior). Then the reception of the invalid value will be handled as an error and the ac-
tivation of runnable entities can be performed using the DataReceiveErrorEvent.
c(SRS_Rte_00078)
[SWS_Rte_05049] d If a data element has been received invalidated in case of Intra-
ECU communication and the attribute handleInvalid is set to replace RTE shall
perform the "invalid value substitution" with the initValue. Then the reception will
be handled as if a valid value would have been received (activation of runnable entities
using the DataReceivedEvent). c(SRS_Rte_00078)
[SWS_Rte_08050] d If a data element has been received invalidated in case of Intra-
ECU communication and the attribute handleInvalid is set to dontInvalidate
the query of the value shall return the received value. Then the reception will be
handled as if a valid value would have been received (activation of runnable entities
using the DataReceivedEvent). c(SRS_Rte_00078)
[SWS_Rte_02308] d If data invalidation is enabled for a composite VariableDat-
aPrototype, and the communication is Intra-ECU, the RTE shall invalidate all invali-
dateable primitive elements of the VariableDataPrototype. c()
[SWS_Rte_02309] d The RTE generator shall reject configurations which are violating
[constr_1302]. c(SRS_Rte_00078)
[SWS_Rte_08102] d If a data element has been received invalidated in case of Intra-
ECU communication and the attribute handleInvalid is set to externalReplace-
ment RTE shall perform the "invalid value substitution" with the value sourced from
the ReceiverComSpec.replaceWith (e.g. constant, NVRAM parameter). Then the
reception will be handled as if a valid value would have been received (activation of
runnable entities using the DataReceivedEvent). c(SRS_Rte_00078)

4.3.1.9 Filters

By means of the filter attribute [SRS_Rte_00121] an additional filter layer can be

added on the receiver side of unqueued S/R-Communication. Value-based filters can

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be defined, i.e. only signal values fulfilling certain conditions are made available for the
receiving component. The possible filter algorithms are taken from OSEK COM version
3.0.2. They are listed in the meta model (see [2]. According to the SW-C template [2],
filters are only allowed for signals that are compatible to C language unsigned integer
types (i.e. characters, unsigned integers and enumerations). Thus, filters cannot be
applied to composite data types like for instance ApplicationRecordDataType or
ApplicationArrayDataType.
[SWS_Rte_05503] d The RTE shall provide value-based filters on the receiver-
side of unqueued S/R-Communication as specified in the SW-C template [2]. c
(SRS_Rte_00121)
[SWS_Rte_05500] d For inter-ECU communication, the filter implementation is per-
formed/done by the COM module. For intra-ECU and inter-Partition communication,
the RTE shall perform the filtering itself. c(SRS_Rte_00019, SRS_Rte_00121)
[SWS_Rte_05501] d The RTE shall support a different filter specification for each
dataElement in a components AUTOSAR interface. c(SRS_Rte_00121)
[SWS_Rte_08077] d In case that filtering applies the input value shall be calculated
from the "unfiltered buffer" before the RunnableEntity starts, the result of the filter
calculation shall be stored in a "filtered buffer" and the RunnableEntity accessing
a dataElement in a Receiver Port with a filter shall get access to the "filtered buffer"
instead of the "unfiltered buffer". c(SRS_Rte_00121)
[SWS_Rte_08078] d For optimization reasons no "filtered buffer" should be provided,
if filtering applies for a dataElement and the "unfiltered buffer" is not used at all. The
"unfiltered buffer" should be used for filtering instead. c(SRS_Rte_00121)
[SWS_Rte_08079] d Separate "filtered buffers" shall be provided, if the same
dataElement is accessed by RunnableEntitys via different Receiver Ports and
filters with different semantics are applied in each Port. c(SRS_Rte_00121)

4.3.1.10 Buffering

[SWS_Rte_02515] d The buffering of sender-receiver communication shall be done

on the receiver side. This does not imply that COM does no buffering on the sender
side. On the receiver side, two different approaches are taken for the buffering of
data and of events, depending on the value of the software implementation policy. c
(SRS_Rte_00110)

4.3.1.10.1 Last-is-Best-Semantics for data Reception

[SWS_Rte_02516] d On the receiver side, the buffering of data (swImplPolicy not

queued) shall be realized by the RTE by a single data set for each data element
instance. c(SRS_Rte_00107)

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The use of a single data set provides the required semantics of a single element queue
with overwrite semantics (new data replaces old). Since the RTE is required to ensure
data consistency, the generated RTE should ensure that non-atomic reads and writes
of the data set (e.g. for composite data types) are protected from conflicting concurrent
access. RTE may use lower layers like COM to implement the buffer.
[SWS_Rte_02517] d The RTE shall initialize this data set [SWS_Rte_02516] with a
startup value depending on the ports attributes and if the general initialization condi-
tions in [SWS_Rte_07046] are fulfilled. c(SRS_Rte_00068, SRS_Rte_00108)
[SWS_Rte_02518] d Implicit or explicit read access shall always return the last re-
ceived data. c(SRS_Rte_00107)
Requirement [SWS_Rte_02518] applies whether or not there is a DataReceivedE-
vent referencing the VariableDataPrototype for which the API is being gener-
ated.
[SWS_Rte_02519] d Explicit read access shall be non blocking in the sense that it
does not wait for new data to arrive. The RTE shall provide mutual exclusion of read
and write accesses to this data, e.g., by ExclusiveAreas. c(SRS_Rte_00109)
[SWS_Rte_02520] d When new data is received, the RTE shall silently discard the pre-
vious value of the data, regardless of whether it was read or not. c(SRS_Rte_00107)

4.3.1.10.2 Queueing for event Reception

The application of event semantics implies a state change. Events usually have
to be handled. In many cases, a loss of events can not be tolerated. Hence the
swImplPolicy is set to queued to indicate that the received events have to be
buffered in a queue.
[SWS_Rte_02521] d The RTE shall implement a receive queue for each event-like data
element (swImplPolicy = queued) of a receive port. c(SRS_Rte_00107)
The queueLength attribute of the QueuedReceiverComSpec referencing the event
assigns a constant length to the receive queue.
[SWS_Rte_02522] d The events shall be written to the end of the queue and read
(consuming) from the front of the queue (i.e. the queue is first-in-first-out). c
(SRS_Rte_00107, SRS_Rte_00110)
[SWS_Rte_02523] d If a new event is received when the queue is already filled,
the RTE shall discard the received event and set an error flag. c(SRS_Rte_00107,
SRS_Rte_00110)
[SWS_Rte_02524] d The error flag described in [SWS_Rte_02523] shall be reset
during the next explicit read access on the queue. In this case, the status value
RTE_E_LOST_DATA shall be presented to the application together with the data. c
(SRS_Rte_00107, SRS_Rte_00110, SRS_Rte_00094)

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[SWS_Rte_02525] d If an empty queue is polled, the RTE shall return with a sta-
tus RTE_E_NO_DATA to the polling function, (see chap. 5.5.1). c(SRS_Rte_00107,
SRS_Rte_00110, SRS_Rte_00094)
The minimum size of the queue is 1.
[SWS_Rte_02526] d The RTE generator shall reject a queueLength attribute of
an QueuedReceiverComSpec with a queue length 0. c(SRS_Rte_00110,
SRS_Rte_00018)

4.3.1.10.3 Queueing of mode switches

The communication of mode switch notifications is typically event driven. Ac-

cordingly, RTE offers a similar queueing mechanism as for the queued sender receiver
communication, described above.
[SWS_Rte_02718] d The RTE shall implement a receive queue for the mode switch
notifications of each mode machine instance. c(SRS_Rte_00107)
The queueLength attribute of the ModeSwitchSenderComSpec referencing the
mode machine instance, assigns a constant length to the receive queue. In con-
trast to the event communication, for mode switch communication, the length is asso-
ciated with the sender side, the mode manager, because it is unique for the mode
machine instance.
[SWS_Rte_02719] d The mode switch notification shall be written to the end
of the queue and read (consuming) from the front of the queue (i.e. the queue is
first-in-first-out). c(SRS_Rte_00107, SRS_Rte_00110)
[SWS_Rte_02720] d If a new mode switch notification is received when
the queue is already filled, the RTE shall discard the received notification. c
(SRS_Rte_00107, SRS_Rte_00110) In this case, Rte_Switch will return an error,
see [SWS_Rte_02675].
[SWS_Rte_02721] d RTE shall dequeue a mode switch notification, when the
mode switch is completed. c(SRS_Rte_00107, SRS_Rte_00110, SRS_Rte_00094)
The minimum size of the queue is 1.
[SWS_Rte_02723] d The RTE generator shall reject a queueLength attribute of
an ModeSwitchSenderComSpec with a queue length 0. c(SRS_Rte_00110,
SRS_Rte_00018)
In case of a queue length of 1, RTE will reject new mode switch notifications during the
mode transition.

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4.3.1.11 Operation

4.3.1.11.1 Inter-ECU Mapping

This section describes the mapping from VariableDataPrototypes to COM signals

or COM signal groups for sender-receiver communication. The mapping is described in
the input of the RTE generator, in the DataMapping section of the System Template [8].
If a VariableDataPrototype is mapped to a COM signal or COM signal group but
the communication is local, the RTE generator can use the COM signal/COM signal
group for the transmission or it can use its own direct implementation of the communi-
cation for the transmission.
[SWS_Rte_04504] d If a sender/receiver communication is inter-ECU, then for each
data element the DataMappings element shall contain a mapping to at least one COM
signal or COM signal group, otherwise the data element shall be treated as if it is part
of an unconnected port. c(SRS_Rte_00091)
The mapping defines all aspects of the signal necessary to configure the communi-
cation service, for example, the network signal endianess and the communication bus
either by the COM configuration or the configured data transformation. The RTE gen-
erator only requires the COM signal handle id since this is necessary for invoking the
COM API and the configuration of the data transformation to execute it.

4.3.1.11.1.1 Primitive Data Types

[SWS_Rte_04505] d The RTE shall use the ComHandleId of the corresponding Com-
Signal when invoking the COM API for signal. c(SRS_Rte_00091)
The actual COM handle id has to be gathered from the ECU configuration of the COM
module. The input information ComSignalHandleId is used to establish the link
between the ComSignal of the COM modules configuration and the corresponding
ISignal of the System Template.

4.3.1.11.1.2 Composite Data Types

When a data prototype has a composite data type the RTE must marshall the data.
This can be achieved by two means: Explicit mapping the atomic sub-elements of the
composite type to their own COM signals or mapping of the whole composite type to
one COM signal if data transformation is used.
The DataMappings element of the ECU configuration and configuration of the data
transformer contain (or references) sufficient information to allow the data item or op-
eration parameters to be transmitted by indicating the COM signals or signal groups to
be used. It is not necessary to provide a mapping for each primitive typed leaf element
within the composite type.

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[SWS_Rte_03863] d The RTE generator shall support the partial mapping to System-
Signals of the leaf elements of a VariableDataPrototype (typed by a composite data
type) in a PPort. c(SRS_Rte_00091)
A partial mapping means that a subset of the composite data types leaf elements are
mapped to SystemSignals in the relevant SystemSignalGroup (e. g. a record with
leaf elements A, B, C, D where only B and C are mapped to SystemSignals of the
SystemSignalGroup). Elements omitted from the partial mapping are simply ignored
by the RTE generator.
For RPorts it is necessary to define how the RTE generator handles the partial mapping
of a composite data type, in particular, how elements omitted from the mapping are
treated.
[SWS_Rte_03864] d For the included element of a partial mapping from SystemSig-
nals to the leaf elements of a VariableDataPrototype (typed by a composite data type)
in a RPort the RTE generator shall use the data provided by COM. c(SRS_Rte_00091)
[SWS_Rte_03865] d For the omitted elements from a partial mapping from SystemSig-
nals to the leaf elements of a VariableDataPrototype (typed by a composite data type)
in a RPort the RTE generator shall use the initial value when receiving the composite
data type. c(SRS_Rte_00091)
[SWS_Rte_08793] d If a data element is a composite data type, the communication
is inter-ECU and data transformation is used (except COM Based Transformer), the
DataMapping element shall map the composite data type directly to one COM signal
to use the data transformation. c(SRS_Rte_00091, SRS_Rte_00247)
The above requirements for mapping atomic sub-elements for them own to distinct
COM signals have two key features; firstly, COM is responsible for endianness con-
version (if any is required) of primitive types and, secondly, differing structure member
alignment between sender and receiver is irrelevant since the COM signals are packed
into I-PDUs by the COM configuration.
The DataMappings shall contain sufficient COM signals to map each primitive element7
of the AUTOSAR signal.
The above requirements for mapping the whole composite data type to one COM signal
on the other hand leaves those features to the data transformation.
[SWS_Rte_04508] d The RTE generator shall reject configuration violating the con-
straint [constr_3059]. c(SRS_Rte_00091)
[SWS_Rte_02557] d
1. Each signal that is mapped to an element of the same composite data item shall
be mapped to the same signal group.
7
An AUTOSAR signal that is a primitive data type contains exactly one primitive element whereas a
signal that is a composite data type one or more primitive elements.

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2. If two signals are not mapped to an element of the same composite data item,
they shall not be mapped to the same signal group.
3. If a signal is not mapped to an element of a composite data item, it shall not be
mapped to a signal group.
c(SRS_Rte_00091)
[SWS_Rte_05081] d The RTE shall use the ComHandleId of the corresponding Com-
SignalGroup when invoking the COM API for signal groups. This also applies for
the array based signal group access with the Com_SendSignalGroupArray() and
Com_ReceiveSignalGroupArray(). c(SRS_Rte_00091)
[SWS_Rte_05173] d The RTE shall use the ComHandleId of the corresponding Com-
GroupSignal when invoking the COM API for shadow signals. c(SRS_Rte_00091)
The actual COM handle id has to be gathered from the ECU configuration of the COM
module. The input information ComHandleId is used to establish the link between the
ComSignalGroup of the COM modules configuration and the corresponding ISig-
nalGroup of the System Template.
The input information ComHandleId of shadow signals is used to establish the link be-
tween the ComGroupSignal of the COM modules configuration and the correspond-
ing ISignal of the System Template.

4.3.1.11.2 Atomicity

[SWS_Rte_04527] d The RTE is required to treat AUTOSAR signals transmitted using

sender-receiver communication atomically [SRS_Rte_00073]. To achieve this
either the signal group mechanisms provided by COM shall be utilized. See
[SWS_Rte_02557] for the mapping.
or the Data Transformation approach (see section 4.10) shall be utilized.
c(SRS_Rte_00019, SRS_Rte_00073, SRS_Rte_00091)
The RTE decomposes the composite data type into single signals as de-
scribed above and passes them to the COM module by using the COM API
call Com_SendSignal (if parameter RteUseComShadowSignalApi is FALSE) or
Com_UpdateShadowSignal (if parameter RteUseComShadowSignalApi is TRUE).
As this set of single signals has to be treated as atomic, it is placed in a signal group.
A signal group has to be placed always in a single I-PDU. Thus, atomicity is estab-
lished. When all signals have been updated, the RTE initiates transmission of the
signal group by using the COM API call Com_SendSignalGroup.
As would be expected, the receiver side is the exact reverse of the transmission
side: the RTE must first call Com_ReceiveSignalGroup precisely once for the sig-
nal group and then call Com_ReceiveSignal (if parameter RteUseComShadowSig-

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nalApi is FALSE) or Com_ReceiveShadowSignal (if parameter RteUseComShad-

owSignalApi is TRUE) to extract the value of each signal within the signal group.
A signal group has the additional property that COM guarantees to inform the receiver
by invoking a call-back about its arrival only after all signals belonging to the signal
group have been unpacked into a shadow buffer.
The Data Transformation approach is described in section 4.10.

4.3.1.11.3 Fan-out

Fan-out can be divided into two scenarios; PDU fanout where the same I-PDU is sent
to multiple destinations and signal fan-out where the same signal, i.e. data element is
sent in different I-PDUs to multiple receivers.
For Inter-ECU communication, the RTE does not perform PDU fan-out. Instead, the
RTE invokes Com_SendSignal once for a primitive data element or for transformed
data and expects the fan-out to multiple PDU destinations to occur lower down in the
AUTOSAR communication stack. However, it is necessary for the RTE to support
signal fan-out since this cannot be performed by any lower level layer of the AUTOSAR
communication stack.
The data mapping in the System Template[8] is based on the SystemSignal and
SystemSignalGroup. The COM module however uses the ISignal and ISignal-
Group counterparts (ComSignal, ComSignalGroup, ComGroupSignal) to define
the COM API. The RTE Generator needs to identify whether there are several ISig-
nal or ISignalGroup elements defined for the SystemSignal or SystemSignal-
Group and implement the fan-out accordingly. Then the corresponding elements in
the COM ecu configuration (ComSignal, ComSignalGroup, ComGroupSignal) are
required to establish the interaction between Rte and COM.
With the usage of Data Transformation a mixture of different serialization technologies
for signal fan-out in the RTE can be used. This is determined by the ISignal or
ISignalGroup association to DataTransformation.
[SWS_Rte_06023] d For inter-ECU transmission of a primitive data type, the RTE shall
perform for each ISignal to which the primitive data element is mapped
the transformation if the ISignal references a TransformationTechnology
the invocation of Com_SendSignal
c(SRS_Rte_00019, SRS_Rte_00028, SRS_Rte_00247)
For the invocation the ComHandleId from the ComSignal of COMs ecu configuration
shall be used (see [SWS_Rte_04505]).

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If the data element is typed by a composite data type several scenarios shall to be
considered for each of the signal fan-out based on the ISignal or ISignalGroup
association to DataTransformation:
no Data Transformation: RTE invokes Com_SendSignal (if parameter
RteUseComShadowSignalApi is FALSE) or Com_UpdateShadowSignal (if
parameter RteUseComShadowSignalApi is TRUE) for each primitive element
(ISignal) in the composite data type and each COM signal to which that primi-
tive element is mapped, and Com_SendSignalGroup for each ISignalGroup
that does not require a Data Transformation to which the data element is
mapped.
Data Transformation without COM Based Transformer: RTE performs the trans-
formation and then invokes Com_SendSignal for each ISignal that has the
dataTransformation association to the DataTransformation defined.
Data Transformation with COM Based Transformer: RTE performs the trans-
formation and then invokes Com_SendSignalGroupArray for each ISignal-
Group that has the comBasedSignalGroupTransformation association to
the DataTransformation defined.
Note:
It is also possible to configure the system to use multiple of these scenarios at the
same time. Then the RTE executes all configured scenarios.
[SWS_Rte_04526] Inter-ECU transmission of composite data without Data Trans-
formation d For inter-ECU transmission of composite data type where
a SenderReceiverToSignalGroupMapping to the VariableDataProto-
type is defined
and the respective ISignalGroup has no comBasedSignalGroupTrans-
formation defined
the RTE shall invoke Com_SendSignal (if parameter RteUseComShadowSignalApi
is FALSE) or Com_UpdateShadowSignal (if parameter RteUseComShadowSig-
nalApi is TRUE) for each ISignal to which an element in the composite data type
is mapped and Com_SendSignalGroup for each ISignalGroup to which the com-
posite data element is mapped. c(SRS_Rte_00019, SRS_Rte_00028)
For the invocation the ComHandleId from the ComGroupSignal and ComSig-
nalGroup of COMs ecu configuration shall be used (see [SWS_Rte_05173] and
[SWS_Rte_05081]).
[SWS_Rte_08586] Inter-ECU transmission of composite data with COM Based
Data Transformation d For inter-ECU transmission of composite data type where
a SenderReceiverToSignalGroupMapping to the VariableDataProto-
type is defined
and the respective ISignalGroup has a comBasedSignalGroupTransfor-
mation reference defined

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the RTE shall perform the transformation and then invoke

Com_SendSignalGroupArray for the ISignalGroup to which the composite
data type is mapped. c(SRS_Rte_00019, SRS_Rte_00028, SRS_Rte_00251)
For the invocation the ComHandleId from the ComSignalGroup of COMs ecu con-
figuration shall be used (see [SWS_Rte_05081]).
[SWS_Rte_08587] Inter-ECU transmission of composite data with Data Transfor-
mation d For inter-ECU transmission of composite data type where
a SenderReceiverToSignalMapping to the VariableDataPrototype is
defined
and the respective ISignal has a dataTransformation reference defined
the RTE shall perform the transformation and then invoke Com_SendSignal
for the ISignal to which composite data type is mapped. c(SRS_Rte_00019,
SRS_Rte_00028, SRS_Rte_00247)
Note:
A SystemSignal can be added to a SystemSignalGroup in the role transform-
ingSystemSignal to support the configuration where a complex data element is
transferred via Sender/Receiver communication both using transformation and tradi-
tional mapping of RTE and COM.
For the invocation the ComHandleId from the ComSignal of COMs ecu configuration
shall be used (see [SWS_Rte_04505]).
For intra-ECU transmission of data elements, the situation is slightly different; the RTE
handles the communication (the lower layers of the AUTOSAR communication stack
are not used) and therefore must ensure that the data elements are routed to all re-
ceivers. For inter-partition communication, RTE may use the IOC.
[SWS_Rte_06024] d For inter-partition transmission of data elements, the RTE
shall perform the fan-out to each receiver. c(SRS_Rte_00019, SRS_Rte_00028)

4.3.1.11.4 Fan-in

When receiving data from multiple senders in inter-ECU communication, either the
RTE on the receiver side has to collect data received in different COM signals or COM
signal groups and pass it to one receiver or the RTE on the sender side has to pro-
vide shared access to a COM signal or COM signal group to multiple senders. The
receiver RTE, which has to handle multiple COM signals or signal groups, is notified
about incoming data for each COM signal or COM signal group separately but has
to ensure data consistency when passing the data to the receiver. The sender RTE,
which has to handle multiple senders sharing COM signals or signal groups, has to
ensure consistent access to the COM API, since COM API calls for the same signal
are not reentrant.

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[SWS_Rte_03760] d If multiple senders use different COM signals or signal groups

for inter-ECU transmission of a data element prototype with swImplPolicy different
from queued to a receiver, the RTE on the receiver side has to pass the last received
value to the receiver component while ensuring data consistency. c(SRS_Rte_00019,
SRS_Rte_00131)
[SWS_Rte_03761] d If multiple senders use different COM signals or signal groups
for inter-ECU transmission of a data element prototype with event semantics to a
receiver, the RTE on the receiver side has to queue all incoming values while ensuring
data consistency. c(SRS_Rte_00019, SRS_Rte_00131)
[SWS_Rte_03762] d If multiple senders share COM signals or signal groups for inter-
ECU transmission of a data element prototype to a receiver, the RTE on the sender
side shall ensure that the COM API for those signals is not invoked concurrently. c
(SRS_Rte_00019, SRS_Rte_00131)

4.3.1.11.5 Sequence diagrams of Sender Receiver communication

Figure 4.39 shows a sequence diagram of how Sender Receiver communication for
data transmission and non-blocking reception may be implemented by RTE. The se-
quence diagram also shows the Rte_Read API behavior if an initValue is specified.
In case the COM Based Transformer [23] is used the sequence in fig-
ure 4.39 is the same, but Com_SendSignalGroupArray() is used instead of
Com_SendSignal() and Com_ReceiveSignalGroupArray() is used instead of
Com_ReceiveSignal().

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Sender Sender's RTE Sender's Sender's COM Receiver's Receiver's RTE Receiver
A pplic ation Transformer Network Receiver's Transformer applic ation
COM

(1) The initValue is

stored in the RTE buffer
allocated for data item
a.
Rte_Read_p_a()
(4) The data value
provided by the sender
is copied to the RTE (2) The buffer for data
allocated buffer. item a is copied to the
receiver's OUT RTE_E_OK()
parameter.
(5) the provided data is
converted. Only if data
Rte_Write_p_a() conversion applies
(optional)

(3) init value is

stored in the
receiver's OUT
X frm_<name>() parameter.

(6) The data element is

transformed to an array
and transferred to the
COM stack

Com_S endSignal()

E_OK()
(8) RTE receives the data
item a from COM and
RTE_E_OK()
(7) The received data item is replace the previous
copied to the COM buffer for data value in the RTE buffer
item a and the notification Rte_COMCbk_<sn>() for data item a.
callback provided by RTE is Note! The callback must
invoked. block the RTERead_p_a
Com_ReceiveSignal() call.

E_OK()

(9) The received data in the Rte_Read_p_a()

buffer are re-transformed.
The result is copied to the
receiver's OUT buffer
Inter-ECU communication
parameter.
Explicit Sender-Receiver communication:
(10) The received data is
Port name = p X frm_Inv_<name>()
converted. Only if data
Data element name = a
conversion applies
VariableDataPrototype with a standard swImplPolicy (Data distribution)
(optional)
The sender VariableDataPrototype is referenced by a VariableAccess in
role dataSendPoint
The receiver VariableDataPrototype is referenced by a VariableAccess in
role dataReceivePointByArgument

RTE_E_OK()

(11) The last received

data item is stored in
the receiver's OUT
parameter

Figure 4.39: Sender Receiver communication with data semantics and dataReceive-
PointByArgument as reception mechanism

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Figure 4.40 shows a sequence diagram of how Sender Receiver communication for
event transmission and non-blocking reception may be implemented by RTE. The se-
quence diagram shows the Rte_Receive API behavior when the queue is empty.
In case the COM Based Transformer [23] is used the sequence in fig-
ure 4.40 is the same, but Com_SendSignalGroupArray() is used instead of
Com_SendSignal() and Com_ReceiveSignalGroupArray() is used instead of
Com_ReceiveSignal().

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Sender Sender's RTE Sender's RTE Sender's COM Receiver's RTE Receiver's RTE Receiver
A pplic ation Netwok Receiver's applic ation
COM

(1) The RTE -

queue for event
p_e is initialized
(flushed).
Rte_Receive_p_e()

(3) The data value (2) The RTE - queue for event p_e
provided by the sender is empty => RTE_E_NO_DATA is
is copied to the RTE returned to Receiver application.
allocated queue. RTE_E_NO_DATA()

Rte_Send_p_e()
(4) the provided data is
converted. Only if data
conversion applies
(optional)

X frm_<name>()
(5) The queue entry is
transformed to an array and
transferred to the COM stack

Com_S endSignal()

E_OK()

RTE_E_OK()

(6) The receiver's COM (7) RTE receives the event

invokes the callback Rte_COMCbk_<sn>() item e from COM and puts
function provided by RTE. it into the RTE - queue for
event e.
Com_ReceiveSignal()

E_OK()

Rte_Receive_p_e()

(8) RTE fetches an event

from the event e queue, X frm_Inv_<name>()
retransforms and copies it
to the Receiver's OUT (9) The received data is
parameter. converted. Only if data
conversion applies
(optional)

RTE_E_OK()

Inter-ECU communication
Explicit Sender-Receiver communication:
Port name = p (10) The received
Data element name = e event item a is
VariableDataPrototype with a queued swImplPolicy (Event distribution) stored in the
The sender VariableDataPrototype is referenced by a VariableAccess in role dataSendPoint receiver's OUT
The receiver VariableDataPrototype is referenced by a VariableAccess in role dataReceivePointByArgument parameter
No WaitPoint is referencing the DataReceivedEvent that references the VariableDataPrototype (non-blocking
reception)

Figure 4.40: Sender Receiver communication with event semantics and dataReceive-
PointByArgument as reception mechanism

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Figure 4.41 shows a sequence diagram of how Sender Receiver communication for
event transmission and activation of runnable entity on the receiver side may be imple-
mented by RTE.
In case the COM Based Transformer [23] is used the sequence in fig-
ure 4.41 is the same, but Com_SendSignalGroupArray() is used instead of
Com_SendSignal() and Com_ReceiveSignalGroupArray() is used instead of
Com_ReceiveSignal().

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Sender Sender's RTE Sender's RTE Sender's COM Receiver's RTE Receiver's RTE Receiver runnable
A pplication Netwok Receiver's
COM

Rte_Send_p_e()

The provided data is converted.

Only if data conversion applies
(optional)

X frm_<name>()

Com_S endSignal()

E_OK()

RTE_E_OK()

Rte_COMCbk_<sn>()

(2) RTE receives the event

(1) The receiver's COM Com_ReceiveSignal() item e from COM and
invokes the callback puts it into the RTE -
function provided by RTE. queue for event e.
E_OK()

A ctivate an OSEK Task()

ReceiversRunnable()
(3) The AUTOSAR OS
Inter-ECU communication task that will execute
Port name = p the receiver's runnable
Data element name = e is started.
VariableDataPrototype with a queued swImplPolicy (Event distribution)
The sender VariableDataPrototype is referenced by a VariableAccess in role
dataSendPoint
The receiver VariableDataPrototype is referenced by a DataReceivedEvent (4) RTE fetches an event
which in turn references the receiver RunnableEntity. from the event e queue
and calls the receiver's (5) The task is
runnable. completed

Figure 4.41: Sender Receiver communication with event semantics and activation of
runnable entity as reception mechanism

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Figure 4.42 shows a sequence diagram of how Sender Receiver communication for
data transmission and non-blocking reception may be implemented by RTE when using
LdCom.

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Sender Sender's RTE Sender Sender's LdCom Reciever Receiver's RTE Receiver
A pplic ation Transformer and -Netwok- Transformer and A pplic ation
Detransformer Receiver's LdCom Detransformer

Rte_Write_p_a()

(1) Perfom Data

Conversion (Optional)

opt Transformer
X frm()
(2) RTE transforms all data
E_OK() elements into a byte array

LdCom_Transmit()
(3) RTE calls LdCom_Transmit for the transformed
E_OK() byte array. In case LdComApiType ==
LDCOM_TP the RTE buffer is now locked.
RTE_E_OK()

alt LdComApiType of LdComIPdu (4) Subsequent Transmission

requests on the same signal will
[LdComA piType == LDCOM_TP] return RTE_E_COM_BUSY as long as
the buffer is locked
Rte_Write_p_a()
(5) The Receiver's RTE
buffer is locked
RTE_E_COM_BUSY()

Rte_LdComCbkS tartOfReception_<sn>() :BufReq_ReturnType (6) Subsequent Read

requests on the same
BUFREQ_OK() buffer will return
RTE_E_COM_BUSY as
long as the buffer is
locked
Rte_Read_p_a()

RTE_E_COM_BUSY()

(7) Data is copied from RTE into

buffer provided by lower layer.
This step may repeated until all loop CopyRxData
data has been processed by [until all data rec eiv ed]
lower layer
Rte_LdComCbkCopyTxData_<sn>(BufReq_ReturnType)

c opy_data() (8) Data is copied from lower

layer
BUFREQ_OK()
into buffer provided by RTE.
This step is repeated upon
Rte_LdComCbkCopyRxData_<sn>() :BufReq_ReturnType reception of each segment of
the segmented transmission

c opy_data()
BUFREQ_OK()

Rte_LdComTpTxConfirmation()

(9) The Receiver's RTE

E_OK()
buffer are unlocked,
Data Received Event can
Rte_LdComCbkTpRxIndication_<sn>(Std_ReturnType) be fired if configured

X fm_Inv()

(10) The re-transformed

data is converted. Only if
data conversion applies
(optional)
E_OK()

[LdComA piType == LDCOM_IF]

Inter-ECU communication
Explicit Sender-Receiver communication: Rte_LdComCbkRxIndication_<sn>()

Port name = p c opy_data()

Data element name = a X frm_Inv()
VariableDataPrototype with a standard swImplPolicy (Data distribution)
The sender VariableDataPrototype is referenced by a VariableAccess in role E_OK()
dataSendPoint
The receiver VariableDataPrototype is referenced by a VariableAccess in role
dataReceivePointByArgument (10) The re-transformed
data is converted. Only if
data conversion applies
E_OK() (optional)

Rte_Read_p_a()

E_OK()

Figure 4.42: Sender Receiver communication with data semantics over LdCom

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4.3.1.12 Never received status for Data Element

The Software Component template allows specifying whether an unqueued data, de-
fined in an AUTOSAR Interface, has been updated since system start (or partition
restart) or not. This additional optional status establishes the possibility to check
whether a data element has been changed since system start (or partition restart).
[SWS_Rte_07381] d On receiver side the handleNeverReceived attribute of the
NonqueuedReceiverComSpec shall specify the handling of the never received sta-
tus. c(SRS_Rte_00184)
[SWS_Rte_07382] d The initial status of the data elements with the attribute handleN-
everReceived set to TRUE shall be RTE_E_NEVER_RECEIVED. c(SRS_Rte_00184)
[SWS_Rte_07383] d The initial status of the data elements with the attribute han-
dleNeverReceived set to TRUE shall be cleared when the first reception occurs. c
(SRS_Rte_00184)
[SWS_Rte_07645] d The status of data elements shall be reset on the receiver
side to RTE_E_NEVER_RECEIVED when the receivers partition is restarted. c
(SRS_Rte_00184, SRS_Rte_00224)
[SWS_Rte_04529] d The configuration of the attribute handleNeverReceived to
TRUE shall have no effect for data elements received from an NvBlockSwCompo-
nentType, since these data elements are automatically received during initialization
of the RTE. c(SRS_Rte_00184)

4.3.1.13 Update flag for Data Element

The Software Component template allows specifying whether an unqueued data, de-
fined in an AUTOSAR Interface, has been updated since last read or not. This addi-
tional optional status establishes the possibility to check, whether a data element has
been updated since last read.
On receiver side the enableUpdate attribute of the NonqueuedReceiverComSpec
has to activate the handling of the update flag.
[SWS_Rte_07385] d The RTE shall provide one update flag per dataElement
in a RPortPrototype where the enableUpdate attribute of the Nonqueue-
dReceiverComSpec is set to true and where at least one RunnableEntity defines
a VariableAccess in the dataReceivePointByArgument or dataReceive-
PointByValue role. c(SRS_Rte_00179)
[SWS_Rte_07386] d The update flag of the data elements configured with the en-
ableUpdate attribute shall be set by receiving new data from COM or from a local
software-component (including NvBlockSwComponentType). c(SRS_Rte_00179)

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[SWS_Rte_01413] d In case a data element with configured enableUpdate at-

tribute is received as invalid the status of its update flag shall be determined ac-
cording to the handling of the DataReceivedEvent/DataReceiveErrorEvent:
The update flag shall be set, if the DataReceivedEvent is triggered.
The update flag shall keep the previous state, if the DataReceiveErrorEvent
is triggered.
c(SRS_Rte_00179)
[SWS_Rte_07387] d The update flag of a particular dataElement in a RPortPro-
totype shall be cleared after each read by Rte_Read or Rte_DRead of the data
element. c(SRS_Rte_00179)
Please note that the "UpdateFlag" for dataElements is only available for explicit com-
munication, see [SWS_Rte_07391].
[SWS_Rte_07689] d The update flag shall be cleared when the RTE is started or when
the partition of the software-component is restarted. c(SRS_Rte_00179)
The update flag can be queried by the Rte_IsUpdated API, see 5.6.35.
[SWS_Rte_04528] d Update flags of data elements which are received by an
NvBlockSwComponentType shall be set to TRUE after the data was copied from the
NvM module to the NVRAM Block by the execution of the according Rte_SetMirror
callback or after an SW-C has written new data to the NVRAM Block by the execution
of the Rte_Write API. c(SRS_Rte_00179)

4.3.1.14 Dynamic data type

Dynamic data are data whose length varies at runtime.

This includes:
arrays with variable number of elements
structures including arrays with variable number of elements
This excludes:
structures including variable number of elements
The length information which specifies how many elements of the dynamic size array
are valid has to be provided by the SWC to the RTE. This is achieved by the usage
of a dynamic size array with explicit size indicator (see [2] chapter "ApplicationArray-
DataType").
The dynamic size array is represented in the implementation by a structure which con-
tains the size indicator and the dynamic size array with the payload. The size indicator
shall be hold consistent to the number of valid elements in the dynamic size array by
the SWC.

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In case of inter-ECU communication, dynamic data are mapped to dynamic signals

and received/transmitted through the TP by the COM stack.
With the current release of SWS_COM, COM limits the dynamic signals to the Com-
SignalType UINT_8DYN (see the requirement COM569).
The usage of dynamic size arrays together with data transformation with inter-ECU
communication circumvents these restrictions and allows dynamic size arrays also for
other data types because the output of data transformation is of the type uint8[n] which
is supported by COM.
In order to respect the VFB concept the capability of inter-ECU and intra-ECU commu-
nication should be equal. So it has been decided to extend these limitation from COM
also to the intra-ECU communication.
As a consequence dynamic data types different from uint8[n] are only supported by
the RTE (independent whether the communication is intra or inter-ECU) if data trans-
formation for inter-ECU communication is used. See [SWS_Rte_07810].

4.3.1.15 Inter-ECU communication through TP

Inter-ECU communication can be configured in COM to be supported by the TP. This

is especially necessary if:
Size of the signal exceed the size of the L-PDU (large signals)
Size of the signal group exceed the size of the L-PDU
In the current release of SWS_COM, COM APIs to access signal values might return
the error code COM_BUSY for the signals mapped to N-PDU. This error code indicates
that the access to the signal value has failed (internally rejected by COM) and should
be retried later. This situation might only be possible when the transmission or the
reception of the corresponding PDU is in progress in COM at the time the access to
the signal value is requested.
This is a problem for the handling of data with data semantic (last is best behavior)
because:
"COM_BUSY like" errors are not compatible with real time systems that should
have predictable response time.
Forwarding this error code to the application implies that every applications
should handle it (implement a retry) even if it will never comes (data is not be
mapped to N-PDU).
Error code can not be forwarded to the application in case of direct read or implicit
write.
This is not a problem for the handling of data with event semantic (queued behav-
ior) because:

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The COM_BUSY error should not be possible during the execution of COM call-
backs (Rx indication and Tx confirmation) that can be used by the RTE to handle
the queue.
Data are queued internally by RTE and accessible at any time by the application.
Note: First point is especially true if the ComIPduSignalProcessing is configured
as IMMEDIATE. But if the ComIPduSignalProcessing is configured as DEFFERED
and 2 events are closely received, it is possible that at the time the RTE tries to access
the corresponding COM signal the second event reception has already started. In this
case the RTE will received COM_BUSY and the event will be lost but it is more a
problem of configuration than a limitation from COM.
As a consequence it has been decided to limit the data mapped to N-PDU to the event
semantic (queued behavior). See [SWS_Rte_07811].
Note: As the data mapping is not mandatory for the RTE contract phase, it is possible
that a configuration is accepted at contract phase but rejected at generation phase
when the data mapping is known.
Dynamic data are always mapped to N-PDU in case of inter-ECU communication. So
in order to avoid such situation (late rejection at generation phase) and in order to
respect the VFB concept (intra and inter-ECU should be equal) it has been decided
to extend this limitation to every dynamic data whatever the communication is intra or
inter-ECU. See [SWS_Rte_07812].

4.3.1.16 Inter-ECU communication of arrays of bytes

4.3.1.16.1 COM

Generally the communication of arrays in the case of inter-ECU communication

must make use of the signal group mechanisms to send an array to COM.
This implies sending each array element to a shadow buffer in COM (with
Com_SendSignal() API, if parameter RteUseComShadowSignalApi is FALSE or
Com_UpdateShadowSignal() API, if parameter RteUseComShadowSignalApi is
TRUE), and in the end send the signal group (with Com_SendSignalGroup() API).
An exception to this general rule is for arrays of bytes. In this case, the RTE shall use
the native COM interface to send directly the data.
[SWS_Rte_07408] d The RTE shall use the Com_SendSignal or
Com_ReceiveSignal APIs to send or receive fixed-length arrays of bytes if
the according VariableDataPrototype is mapped to a SystemSignal. c
(SRS_Rte_00231)
[SWS_Rte_07817] d The RTE shall use the Com_SendDynSignal or
Com_ReceiveDynSignal APIs to send or receive variable-length arrays of bytes
if the according VariableDataPrototype is mapped to a SystemSignal. c
(SRS_Rte_00231)

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If the VariableDataPrototype of a fixed-length or variable-length array is mapped

to a SystemSignalGroup then requirement [SWS_Rte_04526] applies.

4.3.1.16.2 Efficient COM for large data

The rules for the decision whether to use Efficient COM for large data (LdCom) are
described in System Template [8], chapter 6.2.
[SWS_Rte_01376] d The RTE shall use LdCom for sending/receiving arrays of bytes if
the corresponding ComSignal is mapped to LdComIPdu. c(SRS_Rte_00246)
Transmission
[SWS_Rte_01377] d The RTE shall use the LdCom_Transmit API if LdComApiType
is set to LDCOM_IF in LdComIPdu. c(SRS_Rte_00231)
In case If-API is used upon LdCom_Transmit, the transmit request is passed imme-
diately to the lower layer. After return of the API the data does not need to be locked.
[SWS_Rte_01378] d The RTE shall use the LdCom_Transmit API if LdComApiType
is set to LDCOM_TP in LdComIPdu. c(SRS_Rte_00231)
In case TP-API is used, after LdCom_Transmit one or more invocations of
Rte_LdComCbkCopyTxData_<sn> by LdCom will occur asynchronously. The Trans-
mission is finalized by Rte_LdComCbkTpTxConfirmation_<sn>.
During this time the data has to be available for being passed to LdCom.
[SWS_Rte_01379] d The RTE shall lock the signal buffer after it initiated a Tp Trans-
mission (LdCom_Transmit returned RTE_E_OK). c(SRS_Rte_00246)
During the signal buffer is locked no further transmit requests are permitted on
that item. For data semantics this means that Rte_Write/Rte_Call will return
RTE_E_COM_BUSY.
[SWS_Rte_01380] d The RTE shall unlock the signal buffer after
Rte_LdComCbkTpTxConfirmation_<sn> has been invoked (independent of
the result). c(SRS_Rte_00246)
[SWS_Rte_01381] d The RTE shall copy the indicated number of bytes to the
provided destination in each invocation of Rte_LdComCbkCopyTxData_<sn>. c
(SRS_Rte_00246)
[SWS_Rte_01382] d For signals for which the Rte_LdComCbkTriggerTransmit_<sn>
API is configured the data of the corresponding signal has to be available during the
whole runtime of the RTE. c(SRS_Rte_00246)
Rationale: A call to TriggerTransmit may happen at any time, since it originates from
lower BSW layers.

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Hint: Main use case for [SWS_Rte_01382] is the transmission of the current value for
newly (late) subscribed receivers in ServiceDiscovery.
[SWS_Rte_01383] d If Rte_LdComCbkTriggerTransmit_<sn> is invoked, data
shall be copied to the provided destination. c(SRS_Rte_00246)
Reception
[SWS_Rte_01384] d If Rte_LdComCbkRxIndication_<sn> is invoked RTE shall
provide the following steps:
copy the passed signal data to the buffer
fire a DataReceivedEvent (if configured)
return
c(SRS_Rte_00246)
[SWS_Rte_01385] d If Rte_LdComCbkStartOfReception_<sn> is invoked RTE
shall lock the corresponding reception buffer. c(SRS_Rte_00246)
[SWS_Rte_01386] d If Rte_LdComCbkCopyRxData_<sn> is invoked RTE shall copy
the passed signal data (or the indicated portion) to the previously locked reception
buffer. c(SRS_Rte_00246)
[SWS_Rte_01387] d If Rte_LdComCbkTpRxIndication_<sn> is invoked RTE shall
unlock the previously locked reception buffer. c(SRS_Rte_00246)
[SWS_Rte_01388] d When Rte_LdComCbkTpRxIndication_<sn> is invoked and
the passed result code is RTE_E_OK, it shall fire the DataReceivedEvent. Otherwise
the signal value shall be set to the invalidValue for data elements with a swImplPol-
icy different from queued. c(SRS_Rte_00246)

4.3.1.17 Handling of acknowledgment events

As a general rule, the acknowledgment events DataWriteCompletedEvent and

DataSendCompletedEvent shall be raised immediately after the sending to all re-
ceivers has been performed and in case of Inter-ECU communication all acknowledg-
ments from COM or LdCom have been received. As part of the implementation detailed
rules for the following communication scenarios have to be considered:
Intra-Partition communication
[SWS_Rte_08017] d For intra-partition communication with implicit dataWriteAc-
cess the DataWriteCompletedEvent shall be fired if and only if a task ter-
minates and the write-back copy actions to the global RTE-buffer are completed.
The transmission status shall be RTE_E_TRANSMIT_ACK and can be collected with
Rte_IFeedback API. c(SRS_Rte_00122)

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[SWS_Rte_08043] d For intra-partition communication with incoherent implicit

dataWriteAccess no write-back copy actions to a global RTE-buffer will be per-
formed, if the involved runnables are all running in one preemption area. In
this case the DataWriteCompletedEvent shall be fired after the termination
of the last sending runnable in the sending task. The transmission status shall
be RTE_E_TRANSMIT_ACK and can be collected with Rte_IFeedback API. c
(SRS_Rte_00122)
[SWS_Rte_08018] d For intra-partition communication with explicit dataSendPoint
the DataSendCompletedEvent shall be fired if and only if the sending to all receivers
has been performed. The transmission status shall be RTE_E_TRANSMIT_ACK and
can be collected with Rte_Feedback API. c(SRS_Rte_00122)
Inter-Partition communication
[SWS_Rte_08020] d For inter-partition communication with implicit dataWriteAc-
cess the DataWriteCompletedEvent shall be fired if and only if a task terminates
and the write-back copy actions to the global RTE-buffer are completed. In addition
the execution of the data write operations at the data receiver partitions must have
taken place. Thereby the return status of the IOC for the different write operations can
be neglected. The transmission status shall be RTE_E_TRANSMIT_ACK and can be
collected with Rte_IFeedback API. c(SRS_Rte_00122)
[SWS_Rte_08044] d For inter-partition communication with incoherent implicit
dataWriteAccess no write-back copy actions to a global RTE-buffer will be per-
formed, if the involved runnables are all running in one preemption area. In this
case the DataWriteCompletedEvent shall be fired after the termination of the last
sending runnable in the sending task and after the execution of the data write oper-
ations at the data receiver partitions have taken place. Thereby the return status of
the IOC for the different write operations can be neglected. The transmission status
shall be RTE_E_TRANSMIT_ACK and can be collected with Rte_IFeedback API. c
(SRS_Rte_00122)
[SWS_Rte_08021] d For inter-partition communication with explicit dataSendPoint
the DataSendCompletedEvent shall be fired if and only if the sending to all
receivers has been performed and the execution of the data write operations at
the data receiver partitions have taken place. Thereby the return status of the
IOC for the different write operations can be neglected. The transmission status
shall be RTE_E_TRANSMIT_ACK and can be collected with Rte_Feedback API. c
(SRS_Rte_00122)
Inter-ECU communication
[SWS_Rte_08022] d For inter-ECU communication with implicit dataWriteAccess
the DataWriteCompletedEvent shall be fired if and only if a task terminates and
the write-back copy actions to the global RTE-buffer are completed. In addition the
transmission acknowledgment from COM or LdCom must be complete, i.e. the ac-
knowledgment has been received and in case of RTE-fanout all acknowledgments

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have been received. The transmission status shall be RTE_E_TRANSMIT_ACK and

can be collected with Rte_IFeedback API. c(SRS_Rte_00122)
[SWS_Rte_08045] d For inter-ECU communication with incoherent implicit
dataWriteAccess no write-back copy actions to a global RTE-buffer will be per-
formed, if the involved runnables are all running in one preemption area. In this case
the DataWriteCompletedEvent shall be fired after the termination of the last send-
ing runnable in the sending task and after the transmission acknowledgment from
COM or LdCom is complete, i.e. the acknowledgment has been received and in
case of RTE-fanout all acknowledgments have been received. The transmission status
shall be RTE_E_TRANSMIT_ACK and can be collected with Rte_IFeedback API. c
(SRS_Rte_00122)
[SWS_Rte_08023] d For inter-ECU communication with explicit dataSendPoint
the DataSendCompletedEvent shall be fired if and only if the sending to all re-
ceivers has been performed and the transmission acknowledgment from COM or
LdCom is complete, i.e. the acknowledgment has been received and in case
of RTE-fanout all acknowledgments have been received. The transmission status
shall be RTE_E_TRANSMIT_ACK and can be collected with Rte_Feedback API. c
(SRS_Rte_00122)

4.3.2 Client-Server

4.3.2.1 Introduction

Client-server communication involves two entities, the client which is the requirer (or
user) of a service and the server that provides the service.
The client initiates the communication, requesting that the server performs a ser-
vice, transferring a parameter set if necessary. The server, in the form of the RTE,
waits for incoming communication requests from a client, performs the requested
service and dispatches a response to the clients request. So, the direction of initia-
tion is used to categorize whether a AUTOSAR software-component is a client or a
server.
A single component can be both a client and a server depending on the software
realization.
The invocation of a server is performed by the RTE itself when a request is made by
a client. The invocation occurs synchronously with respect to the RTE (typically via
a function call) however the clients invocation can be either synchronous (wait for
server to complete) or asynchronous with respect to the server.
Note: servers which have an asynchronous operation (i.e. they accept a request
and another provide a feedback by invoking a server of the caller) should be avoided
as the RTE does not know the link between these 2 client-server communications. In
particular, the server should have no OUT (or INOUT) parameters because the RTE

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cannot perform the copy of the result in the callers environment when the request was
processed.
[SWS_Rte_06019] d The only mechanism through which a server can be invoked is
through a client-server invocation request from a client. c(SRS_Rte_00029)
The above requirement means that direct invocation of the function implementing the
server outside the scope of the RTE is not permitted.
A server has a dedicated provide port and a client has a dedicated require port.
To be able to connect a client and a server, both ports must be categorized by the
same interface.
The client can be blocked (synchronous communication) respectively non-blocked
(asynchronous communication) after the service request is initiated until the response
of the server is received.
A server implemented by a RunnableEntity with attribute canBeInvokedCon-
currently set to FALSE is not allowed to be invoked concurrently and since a
server can have one or more clients the server may have to handle concur-
rent service calls (n:1 communication) the RTE must ensure that concurrent calls do
not interfere.
[SWS_Rte_04515] d The RTE shall ensure that call serialization8 of the operation is en-
forced when the server runnable attribute canBeInvokedConcurrently is FALSE.
c(SRS_Rte_00019, SRS_Rte_00033)
Note that the same server may be called using both synchronous and asynchronous
communication.
Note also that even when canBeInvokedConcurrently is FALSE, an Atomic-
SwComponentType might be instantiated multiple times. In this case, the implemen-
tation of the RunnableEntity can still be invoked concurrently from several tasks.
However, there will be no concurrent invocations of the implementation with the same
instance handle.
[SWS_Rte_04516] d The RTEs implementation of the client-server communication
shall ensure that a service result is dispatched to the correct client if more than one
client uses a service. c(SRS_Rte_00019, SRS_Rte_00080)
The result of the client/server operation can be collected using wake up of wait point,
explicit data read access or activation of runnable entity.
[SWS_Rte_07409] d If all the following conditions are satisfied:
the server runnables property canBeInvokedConcurrently is set to TRUE
8
Call Serialization ensures at most one thread of control is executing an instance of a runnable
entity at any one time. An AUTOSAR software-component can have multiple instances (and therefore
a runnable entity can also have multiple instances). Each instance represents a different server and
can be executed in parallel by different threads of control thus serialization only applies to an individual
instance of a runnable entity multiple runnable entities within the same component instance may also
be executed in parallel.

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the client and server execute in the same partition, i.e. intra-partition
Client-Server communication
the ServerCallPoint is Synchronous
the OperationInvokedEvent is not mapped to an OsTask
the RTE Generator shall implement the Client-Server communication as a direct func-
tion call. c()
Note: In case the conditions in [SWS_Rte_04522] are fulfilled the RTE Generator may
implement a client-server call with a direct function call, even when the server runn-
ables property canBeInvokedConcurrently is set to FALSE.
Since the communication occurs conceptually via the RTE (it is initiated via an RTE API
call) the optimization does not violate the requirement that servers are only invoked via
client-server requests (see Sect. 5.6.13, [SWS_Rte_06019]).
[SWS_Rte_07662] d The RTE Generator shall reject configurations where an
ClientServerOperation has an ArgumentDataPrototype whose Implemen-
tationDataType is of category DATA_REFERENCE and whose direction is
INOUT. c(SRS_Rte_00018, SRS_Rte_00019)
[SWS_Rte_08731] d If the return value of the serialization call is not equal to E_OK the
RTE shall not call Com_SendSignal c(SRS_Rte_00091)

4.3.2.2 Multiplicity

Client-server interfaces contain two dimensions of multiplicity; multiple clients invoking

a single server and multiple operations within a client-server interface.

4.3.2.2.1 Multiple Clients Single Server

Client-server communication involves an AUTOSAR software-component invoking a

defined server operation in another AUTOSAR software-component which may or
may not return a reply.
[SWS_Rte_04519] d The RTE shall support multiple clients invoking the same server
operation (n:1 communication where n 1). c(SRS_Rte_00029)

4.3.2.2.2 Multiple operations

A client-server interface contains one or more operations. A port of a AUTOSAR

software-component that requires an AUTOSAR client-server interface to the com-
ponent can independently invoke any of the operations defined in the interface
[SRS_Rte_00089].

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[SWS_Rte_04517] d The RTE API shall support independent access to operations in

a client-server interface. c(SRS_Rte_00029)

Example 4.8

Consider a client-server interface that has two operations, op1 and op2 and that an
AUTOSAR software-component definition requires a port typed by the interface. As
a result, the RTE generator will create two API calls; one to invoke op1 and another
to invoke op2. The calls can invoke the server operations either synchronously or
asynchronously depending on the configuration.

Recall that each data element in a sender-receiver interface is transmitted indepen-

dently (see Section 4.3.1.3) and that the coherent transmission of multiple data items
is achieved through combining multiple items into a single composite data type. The
transmission of the parameters of an operation in a client-server interface is simi-
lar to a record since the RTE guarantees that all parameters are handled atomically
[SRS_Rte_00073].
[SWS_Rte_04518] d The RTE shall treat the parameters and the results of a client-
server operation atomically. c(SRS_Rte_00033)
However, unlike a sender-receiver interface, there is no facility to combine multiple
client-server operations so that they are invoked as a group.

4.3.2.2.3 Single Client Multiple Server

The RTE is not required to support multiple server operations invoked by a single client
component request (1:n communication where n > 1) (see [constr_1037] in [2]).

4.3.2.2.4 Call Serialization

Each client can invoke the server simultaneously and therefore the RTE is required to
support multiple requests of servers. If the server requires call serialization, the RTE
has to ensure it.
[SWS_Rte_04520] d The RTE shall support simultaneous invocation requests of a
server operation. c(SRS_Rte_00019, SRS_Rte_00080)
[SWS_Rte_04522] d The RTE shall ensure that the RunnableEntity implementing
a server operation has completed the processing of a request before it begins process-
ing the next request, if serialization is required by the server operation, i.e canBeIn-
vokedConcurrently attribute of the server is set to FALSE and client RunnableEn-
titys to OsTask mapping (RteEventToTaskMapping) may lead to concurrent in-
vocations of the server. c(SRS_Rte_00019, SRS_Rte_00033)

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When this requirement is met the operation is said to be call serialized. A call se-
rialized server only accepts and processes requests atomically and thus avoids the
potential for conflicting concurrent access.
Client requests that cannot be serviced immediately due to a server operation being
busy are required to be queued pending processing. The presence and depth of the
queue is configurable.
If the RunnableEntity implementing the server operation is reentrant , i.e. can-
BeInvokedConcurrently attribute set to TRUE, no serialization is necessary. This
allows to implement invocations of reentrant server operations as direct function calls
without involving the RTE.
But even when the canBeInvokedConcurrently attribute is set to FALSE the
RTE Generator still can utilize a direct function call, if the mapping of the client
RunnableEntitys to OsTasks will not imply a concurrent execution of the server.
[SWS_Rte_08001] d If two operations are mapped to the same RunnableEntity,
and [SWS_Rte_04522] requires a call serialization, then the operation invoked events
shall be mapped to same task and they shall have the same position in task. Otherwise
the RTE Generator shall reject configuration. c(SRS_Rte_00019, SRS_Rte_00033)
[SWS_Rte_08002] d If two operations are mapped to the same RunnableEntity,
and [SWS_Rte_04522] requires a call serialization, then a single queue is imple-
mented for invocations coming from any of the operations. c(SRS_Rte_00019,
SRS_Rte_00033)

4.3.2.3 Communication Time-out

The ServerCallPoint allows to specify a timeout so that the client can be notified
that the server is not responding and can react accordingly. If the client invokes the
server synchronously, the RTE API call to invoke the server reports the timeout. If
the client invokes the server asynchronously, the timeout notification is passed to the
client by the RTE as a return value of the API call that collects the result of the server
operation.
[SWS_Rte_03763] d The RTE shall ensure that timeout monitoring is performed
for client-server communication, regardless of the receive mode for the result. c
(SRS_Rte_00069, SRS_Rte_00029)
If the server is invoked asynchronously and a WaitPoint is specified to collect the
result, two timeout values have to be specified, one for the ServerCallPoint and
one for the WaitPoint.
[SWS_Rte_03764] d The RTE generator shall reject the configuration if different
timeout values are specified for the AsynchronousServerCallPoint and for the
WaitPoint associated with the AsynchronousServerCallReturnsEvent for this
AsynchronousServerCallPoint. c(SRS_Rte_00018)

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In asynchronous client-server communication the AsynchronousServerCall-

ReturnsEvent associated with the AsynchronousServerCallPoint for an
ClientServerOperation indicates that the server communication is finished or that
a timeout occurred. The status information about the success of the server operation
is available as the return value of the RTE API call generated to collect the result.
[SWS_Rte_03765] d For each asynchronous invocation of an operation prototype only
one AsynchronousServerCallReturnsEvent shall be passed to the client com-
ponent by the RTE. The AsynchronousServerCallReturnsEvent shall indicate
either that the transmission was successful or that the transmission was not success-
ful. c(SRS_Rte_00079)
[SWS_Rte_03766] d The status information about the success or failure of the asyn-
chronous server invocation shall be available as the return value of the RTE API call to
retrieve the result. c(SRS_Rte_00079)
After a timeout was detected, no result shall be passed to the client.
[SWS_Rte_03770] d In case Rte_Call API returns RTE_E_LIMIT,
RTE_E_TRANSFORMER_LIMIT, RTE_E_COM_STOPPED, RTE_E_TIMEOUT,
RTE_E_UNCONNECTED, RTE_E_IN_EXCLUSIVE_AREA or RTE_E_SEG_FAULT,
the RTE shall not modify the OUT and INOUT parameters. c(SRS_Rte_00069,
SRS_Rte_00029)
[SWS_Rte_08310] d In case Rte_Result API returns
RTE_E_NO_DATA,RTE_E_HARD_TRANSFORMER_ERROR, RTE_E_COM_STOPPED,
RTE_E_TIMEOUT, RTE_E_UNCONNECTED, RTE_E_IN_EXCLUSIVE_AREA or
RTE_E_SEG_FAULT, the RTE shall not modify the OUT and INOUT parameters.
c(SRS_Rte_00069, SRS_Rte_00029)
Since an asynchronous client can have only one outstanding server invocation at a
time, the RTE has to monitor when the server can be safely invoked again.
If a server is invoked asynchronously, no timeout occurs and an Asyn-
chronousServerCallResultPoint exists then the RTE returns RTE_E_LIMIT for
subsequent invocations of the Rte_Call API until the servers result has been suc-
cessfully passed to the client (See [SWS_Rte_01105]).
If a server is invoked asynchronously, no timeout occurs and no Asyn-
chronousServerCallResultPoint exists then the RTE returns RTE_E_LIMIT for
subsequent invocations of the Rte_Call API until the server has finished to process
the last request of the client (See [SWS_Rte_01105]).
In intra-partition client-server communication, the RTE can determine whether the
server runnable is still running or not.
[SWS_Rte_03771] d If a timeout was detected in asynchronous intra-partition client-
server communication, the RTE shall ensure that the server is not invoked again
by the same client until the server runnable has terminated. c(SRS_Rte_00069,
SRS_Rte_00079)

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In inter-ECU communication, the client RTE has no knowledge about the actual status
of the server. The response of the server could have been lost because of a commu-
nication error or because the server itself did not respond. Since the client-side RTE
cannot distinguish the two cases, the client must be able to invoke the server again
after a timeout expired. As partitions in one ECU are decoupled in a similar way like
separate ECUs, and can be restarted separately, client server communication should
behave similar for inter-ECU and intra-partition communication.
[SWS_Rte_03772] d If a timeout was detected in asynchronous inter-ECU or
inter-partition client-server communication, the RTE shall ensure that the server
can be invoked again by the same client after the timeout notification was passed to
the client. c(SRS_Rte_00069, SRS_Rte_00079)
Note that this might lead to client and server running out of sync, i.e. the response of
the server belongs to the previous, timed-out invocation of the client. The application
has to handle the synchronization of client and server after a timeout occurred.
[SWS_Rte_03767] d If the timeout value of the ServerCallPoint is 0, no timeout
monitoring shall be performed. c(SRS_Rte_00069, SRS_Rte_00029)
[SWS_Rte_03768] d If the canBeInvokedConcurrently attribute of the server runn-
able is set to TRUE, no timeout monitoring shall be performed if the RTE API call
to invoke the server is implemented as a direct function call. c(SRS_Rte_00069,
SRS_Rte_00029)
[SWS_Rte_02709] d In case of inter partition communication, if the partition of the
server is stopped or restarting at the invocation time of the server call or during the
operation of the server call, the RTE shall immediately provide a timeout indication to
the client. c()
Note: In case of inter-ECU or interpartition client-server communication it is recom-
mended to always specify a timeout>0 when synchronous server calls are used. Oth-
erwise in case of a full server queue the client would wait for the server response
infinitely.

4.3.2.4 Port-Defined argument values

Port-defined argument values exist in order to support interaction between Application

Software Components and Basic Software Modules.
Several Basic Software Modules use an integer identifier to represent an object that
should be acted upon. For instance, the NVRAM Manager uses an integer identifier
to represent the NVRAM block to access. This identifier is not known to the client,
as the client must be location independent, and the NVRAM block to access for a
given application software component cannot be identified until components have been
mapped onto ECUs.
There is therefore a mismatch between the information available to the client and that
required by the server. Port-defined argument values bridge that gap.

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The required port-defined arguments (the fact that they are required, their data type
and their values) are specified within the input to the RTE generator.
[SWS_Rte_01360] d When invoking the runnable entity specified for an OperationIn-
vokedEvent, the RTE shall include the port-defined argument values between the in-
stance handle (if it is included) and the operation-specific parameters, in the order they
are given in the Software Component Template Specification [2]. c(SRS_Rte_00152)
Requirement [SWS_Rte_01360] means that a client will make a request for an opera-
tion on a require (Client-Server) port including only its instance handle (if required) and
the explicit operation parameters, yet the server will be passed the implicit parameters
as it requires.
Note that the values of implicit parameters are constant for a particular server runnable
entity; it is therefore expected that using port-defined argument values imposes no
RAM overhead (beyond any extra stack required to store the additional parameters).

4.3.2.5 Buffering

Client-Server-Communication is a two-way-communication. A request is sent from the

client to the server and a response is sent back.
Unless a server call is implemented as direct function call, the RTE has to store or
buffer the communication on the corresponding receiving sides, requests on server
side and responses on client side, respectively:
[SWS_Rte_02527] d Unless a server call is implemented as a direct function call,
the RTE shall buffer a request on the server side in a first-in-first-out queue as
described in chapter 4.3.1.10.2 for queued data elements.
Note: The data that shall be buffered is implementation specific but at least RTE
should store the IN parameters, the IN/OUT parameters and a client identifer. c
(SRS_Rte_00019, SRS_Rte_00033, SRS_Rte_00110)
[SWS_Rte_02528] d Unless a server call is implemented as a direct function call,
RTE shall keep the response on the client side in a queue with queue length 1.
Note: The data that shall be buffered is implementation specific but at least RTE
should store the IN/OUT parameters, the OUT parameters and the error code. c
(SRS_Rte_00019, SRS_Rte_00033)
For the server side, the queueLength attribute of ServerComSpec specifies the
length of the queue.
[SWS_Rte_02529] d The RTE generator shall reject a queueLength attribute of a
ServerComSpec with a queue length 0. c(SRS_Rte_00033, SRS_Rte_00110,
SRS_Rte_00018)
[SWS_Rte_02530] dThe RTE shall use the queue of requests to call serialise access
to a server. c(SRS_Rte_00033, SRS_Rte_00110)

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A buffer overflow of the server is not reported to the client. The client will receive a time
out.
[SWS_Rte_07008] d If a server call is implemented by direct function call the RTE
shall not create any copy for parameters passed by reference. c(SRS_Rte_00033,
SRS_Rte_00110)
Therefore, it is the responsibility of the application to provide consistency mechanisms
for referenced parameters if necessary.

4.3.2.6 Inter-ECU and Inter-Partition Response to Request Mapping

RTE is responsible to map a response to the corresponding request. With this map-
ping, RTE can activate or resume the corresponding runnable and provide the re-
sponse to the correct client. The following situations can be distinguished:
Mapping of a response to the correct request within one ECU. In general, this is
solved already by the call stack. The details are implementation specific and will
not be discussed in this document.
Mapping of a response coming from a different partition or a different ECU.
The problem of request to response mapping in inter-ECU and inter-Partition commu-
nication can be split into:
Mapping of a response to the correct client. This is discussed in 4.3.2.6.1.
Mapping of a response to the correct request within of one client. This is dis-
cussed in 4.3.2.6.2.
The general approach for the inter-ECU and inter-Partition request response mapping
is to use transaction handles.
[SWS_Rte_02649] d In case of inter-ECU client-server communication, the transaction
handle shall contain two parts of unsigned integer type:
Client Identifier
Client Sequence Counter
c(SRS_Rte_00027, SRS_Rte_00082)
[SWS_Rte_04544] d In case of inter-ECU client-server communication, where Meta-
Data is configured for the PDU associated to the SystemSignal, the transaction han-
dle shall additionally contain the item MetaData of unsigned integer type. The size shall
be equal to the size of the configured MetaData. c(SRS_Rte_00027, SRS_Rte_00082)
[SWS_Rte_08711] d The Client Identifier of the transaction handle used for a inter-
ECU client server communication shall be of type uint16. c(SRS_Rte_00082,
SRS_Rte_00091)

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[SWS_Rte_07413] d The Client Identifier of the transaction handle used for a inter-ECU
client server communication may be defined at the ClientIdDefinition belonging
to the Ecu Extract and referring the operation instance. If defined the RTE generator
shall take the clientId from the ClientIdDefinition. If not defined the RTE
generator shall set the clientId to 0. c(SRS_Rte_00082, SRS_Rte_00091)
[SWS_Rte_08712] d The Client Sequence Counter part of the transaction handle
used for a inter-ECU client server communication shall be of type uint16. c
(SRS_Rte_00082, SRS_Rte_00091)
[SWS_Rte_07346] d In case of inter-Partition client-server communication, the RTE
shall not communicate any response to the client if the client is part of a partition that
was restarted since the request was sent. c(SRS_Rte_00027, SRS_Rte_00082)
[SWS_Rte_07346] could be implemented with a transaction handle that contains a
sequence counter.
[SWS_Rte_02651] d In case of inter-ECU client-server communication, the transaction
handle shall be used for the identification of client server transactions communicated
via COM or LdCom. c(SRS_Rte_00027, SRS_Rte_00082)
[SWS_Rte_02653] d The RTE on the server side shall return the transaction handle
of the request without modification together with the response. The MetaData item
(if contained) in the transaction handle shall be passed to LdCom when invoking the
transmission of the response c(SRS_Rte_00027, SRS_Rte_00082)
Note: MetaData handling is currently only supported for LdCom. When using Com still
one dedicated SystemSignal has to be used for each calling ECU.
Since there is always at most one open request per client (see [SWS_Rte_02658]), the
transaction handle can be kept within the RTE and does not have to be exposed to the
AUTOSAR SW-C.

4.3.2.6.1 Client Identifier

In case of a server on one ECU with clients on other ECUs, the inter-ECU client-server
communication has to use different unique SystemSignals for each client-ECU to
allow the identification of the client-ECU associated with each client call. However
Client ECUs for which MetaData is configured for distinction of calling ECUs can be
configured sharing one unique SystemSignal if LdCom is used. The interface to the
COM module currently doesnt support it.
[SWS_Rte_02579] d The RTE Generator shall reject configurations where there is
inter-ECU client-server communication from several client-ECUs using the same Sys-
temSignals and no MetaData is configured for distinction. c(SRS_Rte_00029,
SRS_Rte_00082, SRS_Rte_00018)
With this mechanism, the server-side RTE must handle the fan-in. This is done in the
same way as for sender-receiver communication.

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However it is allowed to have several clients in one client-ECU communicating using

inter-ECU client-server communication with a server on a different ECU, if the client
identifier is used to distinguish the different clients.
[SWS_Rte_05111] d The RTE Generator shall reject configurations where there is
inter-ECU client-server communication from several clients on the same client-ECU
and no client identifier is configured for at least one of these inter-ECU client-server
communications. c(SRS_Rte_00018, SRS_Rte_00029, SRS_Rte_00082)
[SWS_Rte_03769] d If multiple clients have access to one server, the RTE on the
server side has to queue all incoming server invocations while ensuring data consis-
tency. c(SRS_Rte_00019, SRS_Rte_00029, SRS_Rte_00080)

4.3.2.6.2 SequenceCounter

The purpose of sequence counters is to map a response to the correct request of a

known client.
[SWS_Rte_02658] d In case of inter-ECU and inter-Partition communication, RTE shall
allow only one request per client and server operation at any time. c(SRS_Rte_00079)
[SWS_Rte_02658] does not apply to intra-partition communication because there can
be several execution-instances.
[SWS_Rte_02658] implies under normal operation that a response can be mapped to
the previous request. But, when a request or response is lost or delayed, this order
can get out of phase. To allow a recovery from lost or delayed signals, a sequence
counter is used. The sequence counter can also be used to detect stale responses
after a restart of the client side RTE and SW-C.
[SWS_Rte_02654] d RTE shall support a sequence counter for the inter ECU client
server connection where configured in the input information. c(SRS_Rte_00027,
SRS_Rte_00082)
[SWS_Rte_02655] d RTE shall initialize all sequence counters with zero during
Rte_Start. c(SRS_Rte_00082)
[SWS_Rte_02656] d RTE shall increase each sequence counter in a cyclic man-
ner after a client server operation has finished successfully or with a timeout. c
(SRS_Rte_00082)
[SWS_Rte_02657] d RTE shall ignore incoming responses that do not match the se-
quence counter. c(SRS_Rte_00027, SRS_Rte_00082)

4.3.2.7 Parameter Serialization

Within an input configuration an unconnected or an intra-ECU client will have zero

ClientServerToSignalMapping and an inter-ECU client will have exactly one

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such mapping (since a client can connect to exactly one server). Fan-out is not sup-
ported for clients and therefore multiple mappings are not permitted.
[SWS_Rte_08700] d The RTE generator shall reject an input configuration where
a ClientServerOperation owned by an RPortPrototype is referenced
by more than one ClientServerToSignalMapping with identical values of
the attribute ClientServerOperation . c(SRS_Rte_00018, SRS_Rte_00027,
SRS_Rte_00082, SRS_Rte_00091)
[SWS_Rte_08703] d For an inter-ECU client-server communication, the RTE of the
client ECU shall communicate the request to a remote server using the callSignal
of the ClientServerToSignalMapping which references the operation instance. c
(SRS_Rte_00027, SRS_Rte_00082, SRS_Rte_00091)
[SWS_Rte_08705] d For an inter-ECU client-server communication, the RTE of the
client ECU shall receive the results of a remote server using the returnSignal of
the ClientServerToSignalMapping which references the operation instance. c
(SRS_Rte_00027, SRS_Rte_00082, SRS_Rte_00091, SRS_Rte_00123)
[SWS_Rte_08707] d For an inter-ECU client-server communication, the RTE of the
server ECU shall receive a request of a remote client using the callSignal of
the ClientServerToSignalMapping which references the operation instance. c
(SRS_Rte_00027, SRS_Rte_00082, SRS_Rte_00091)
[SWS_Rte_08709] d For inter-ECU client-server communication, the RTE of the server
ECU shall communicate the results to a remote client using the returnSignal of
the ClientServerToSignalMapping which references the operation instance. c
(SRS_Rte_00027, SRS_Rte_00082, SRS_Rte_00091, SRS_Rte_00123)

4.3.2.8 Operation

4.3.2.8.1 Inter-ECU Mapping

The client server protocol defines how a client call and the server response are mapped
onto the communication infrastructure of AUTOSAR in case of inter-ECU communica-
tion. This allows RTE implementations from different vendors to interpret the client
server communication in the same way.
The AUTOSAR System Template [8] does specify a protocol for the client server com-
munication in AUTOSAR.

4.3.2.8.2 Atomicity

The requirements for atomicity from Section 4.3.1.11.2 also apply for the composite
data types described in Section 4.3.2.8.1.

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4.3.2.8.3 Fault detection and reporting

Client Server communication may encounter interruption like:

Buffer overflow at transformation
Buffer overflow at the server side.
Communication interruption.
Server might be inaccessible for some reason.
The client specifies a timeout that will expire in case the server or communication fails
to complete within the specified time. The reporting method of an expired timeout
depends on the communication attributes:
If the C/S communication is synchronous the RTE returns RTE_E_TIMEOUT on
the Rte_Call function (see section 5.6.13).
If the C/S communication is asynchronous the RTE returns RTE_E_TIMEOUT on
the Rte_Result function (see section 5.6.14).
In the case that RTE detects that the COM service is not available when forwarding sig-
nals to COM, the RTE returns RTE_E_COM_STOPPED on the Rte_Call (see section
5.6.13).
In the case a transmission is ongoing (e.g. LdCom transmission using TP-API
with pending TxConfirmation) when forwarding signals to LdCom, the RTE returns
RTE_E_COM_BUSY on the Rte_Call (see section 5.6.13).
If the client still has an outstanding server invocation when the server is invoked again,
the RTE returns RTE_E_LIMIT on the Rte_Call (see chapter 5.6.13).
In the absence of structural errors, application errors will be reported if present.

4.3.2.8.4 Asynchronous Client Server communication

Figure 4.43 shows a sequence diagram of how asynchronous client server communi-
cation may be implemented by RTE.

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Client Application Client's RTE Client's Client's COM Server's Server's RTE Server
Transformer Netwok Server's Transformer
COM

Rte_Call_p_o()
Xfrm_<name1>()
(1) RTE transforms all IN
E_OK() parameters of the operation

alt dynamicLength of SystemSignal

[dynamicLength == true]
Com_SendDynSignal()

E_OK()
(2) RTE calls Com_SendSignal for the
byte array to transfer all IN parameters
using it's COM
[dynamicLength == false]
Com_SendSignal()

E_OK()

RTE_E_OK()
Rte_COMCbk_<sg>()

(3) The Server's COM

invokes RTE callback alt dynamicLength of SystemSignal
(4) The Server's COM
when transformed data
[dynamicLength == true] receives the transformed
have been received.
byte array
Com_ReceievDynSignal()

E_OK()

(5) RTE calls transformer to

[dynamicLength == false] deserialize the byte array into
Com_ReceiveSignal() parameters. Additionally, the RTE
receives the Client ID and puts
them into the RTE queue. The
E_OK()
Server Task is activated.
Inter-ECU communication
Asynchronous Client-Server communication
Port name = p
Operation name = o
Xfrm_Inv_<name1>()
The ClientResponseRunnable is referencing an
AsynchronousServerCallReturnsEvent. E_OK()
The client runnable that invokes the server call is referencing an Activate Server's Task()
AsynchronousServerCallPoint
The server runnable is refered by an OperationInvokedEvent
ServerComSpec attribute queueLength = number of possible
queued server calls
ServerRunnable()
(6) RTE fetches the server
parameter from its queue
and calls the Server Xfrm_<name2>()
runnable.
E_OK()
(7) RTE calls the transformer for
the response OUT parameters
and sends the resulting array
alt dynamicLength of SystemSignal
back to the client
[dynamicLength == true]
Com_SendDynSignal()

E_OK()

[dynamicLength == false]
Com_SendSignal()

E_OK()

Rte_COMCbk_<sg>()

Activate Client's response task()

(8) The Client's
COM invokes RTE
callback when
transformed data
have been
received.
alt dynamicLength of SystemSignal
[dynamicLength == true]
Com_ReceiveDynSignal()

E_OK()

[dynamicLength == false]
Com_ReceiveSignal()

E_OK()

Xfrm_Inv_<name2>()

E_OK()
ClientResponseRunnable()
(9) RTE deserializes all OUT parameters and activates the
Client's response runnable.

Figure 4.43: Client Server asynchronous

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4.3.2.8.5 Synchronous Client Server communication

Figure 4.44 shows a sequence diagram of how synchronous client server communica-
tion may be implemented by RTE.

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Client Application Client's RT E Client's Client's COM Server's Server's RTE Server
Transformer Netwok Server's Transformer
COM

Rte_Call_p_o()
Xfrm_<name1>()
(1) RTE transforms all IN
parameters of the operation into
E_OK()
a byte array

alt dynamicLength of SystemSignal (2) RTE calls Com_SendSignal

for the byte array to transfer all
[dynamicLength == true] IN parameters using it's COM
Com_SendDynSignal()

E_OK()

[dynamicLength == false]
Com_SendSignal()

E_OK()

WaitEvent(EventXY)
Client Application is
blocked. Client task is
set waiting Rte_COMCbk_<sg>()

(3) The Server's COM

alt dynamicLength of SystemSignal
invokes RTE callback
when transformed data [dynamicLength == true]
have been received. Com_ReceiveDynSignal()

E_OK()
(4) The Server's COM
receives the transformed
[dynamicLength == false] byte array
Com_ReceiveSignal()

E_OK()

(5) RTE calls transformer to

deserialize the byte array into
parameters. Additionally, the RTE
Xfrm_Inv_<name1>()
receives the Client ID and puts
Inter-ECU communication them into the RTE queue. The
Synchronous Client-Server communication E_OK() Server Task is activated.
Port name = p
Operation name = o

The client runnable that invokes the server call is

Activate Server's task()
referencing an SynchronousServerCallPoint
The server runnable is refered by an
OperationInvokedEvent
ServerComSpec attribute queueLength = number of
possible queued server calls ServerRunnable()
(6) RTE fetches the server parameter
from its queue and calls the Server
runnable.

Xfrm_<name2>()

(7) RTE calls the transformer

for the response OUT
alt dynamicLength of SystemSignal parameters and sends the
resulting array back to the
[dynamicLength == true]
client
Com_SendDynSignal()

E_OK()

[dynamicLength == false]
Com_SendSignal()

E_OK()

Rte_COMCbk_<sg>()
Client task is
released SendEvent(EventXY)

alt dynamicLength of SystemSignal

Client task is [dynamicLength == true]
started Com_ReceiveDynSignal()

E_OK()

[dynamicLength == false]
Com_ReceiveSignal()

E_OK()

(8) RTE receives byte

array and transforms it
Xfrm_Inv_<name2>()
back to the OUT
parameters
Client Application
continues
RTE_E_OK()

Figure 4.44: Client Server synchronous

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4.3.3 SWC internal communication

4.3.3.1 Inter Runnable Variables

Sender/Receiver and Client/Server communication through AUTOSAR ports are the

model for communication between AUTOSAR SW-Cs.
For communication between Runnables inside of an AUTOSAR SW-C the AUTOSAR
SW-C Template [2] establishes a separate mechanism. AtomicSwComponents (ex-
cept for NvBlockComponents) can reserve InterRunnableVariables which can only be
accessed by the Runnables of this one AtomicSwComponent. The Runnables might
be running in the same or in different task contexts. Read and write accesses are
possible.
[SWS_Rte_03589] d The RTE shall support Inter Runnable Variables for single and
multiple instances of AUTOSAR SW-Cs. c(SRS_Rte_00142)
[SWS_Rte_07187] d The generated RTE shall initialize a defined implicitInter-
RunnableVariable and explicitInterRunnableVariable according to the
ValueSpecification of the VariableDataPrototype defining the implic-
itInterRunnableVariable respectively explicitInterRunnableVariable if
the general initialization conditions in [SWS_Rte_07046] and [SWS_Rte_03852] are
fulfilled. c(SRS_Rte_00142)
InterRunnableVariables have a behavior corresponding to Sender/Receiver commu-
nication between AUTOSAR SW-Cs (or rather between Runnables of different AU-
TOSAR SW-Cs).
But why not use Sender/Receiver communication directly instead? Purpose is data
encapsulation / data hiding. Access to InterRunnableVariables of an AUTOSAR SW-C
from other AUTOSAR SWCs is not possible and not supported by RTE. InterRunnabl-
eVariable content stays SW-C internal and so no other SW-C can use it. Especially not
misuse it without understanding how the data behaves.
Like in Sender/Receiver (S/R) communication between AUTOSAR SW-Cs two different
behaviors exist:
1. Inter Runnable Variables with implicit behavior
(implicitInterRunnableVariable)
This behavior corresponds with VariableAccesses in the dataReadAc-
cess and dataWriteAccess roles of Sender/Receiver communication and is
supported by implicit S/R API in this specification.
Note:
If a VariableAccess in the writtenLocalVariable role referring to a
VariableDataPrototype in the implicitInterRunnableVariable role
is specified for a certain interrunnable variable, but no RTE API for implicit write
of this interrunnable variable is called during an execution of the runnable, an
undefined value is written back when the runnable terminates.

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For more details see section 4.2.5.6.1.

For APIs see sections 5.6.23 and 5.6.24.
Note 2:
As for the Implicit Sender/Receiver communication, the implicit concept for Inter-
RunnableVariables implies that the runnable does terminate. For runnable enti-
ties of category 2, the behavior is guaranteed only if it has a finite execution time.
A category 2 runnable that runs forever will not have its data updated.
2. Inter Runnable Variables with explicit behavior
(explicitInterRunnableVariable)
This behavior corresponds with VariableAccesses in the dataSendPoint,
dataReceivePointByValue, or dataReceivePointByArgument roles of
Sender/Receiver communication and is supported by explicit S/R API in this
specification.
For more details see section 4.2.5.6.2
For APIs see sections 5.6.26 and 5.6.27.

4.3.4 Inter-Partition communication

Partitions are used to decompose an ECU into functional units. Partitions can con-
tain both SW-Cs and BSW modules. The partitioning is done to protect the software
contained in the partitions against each other or to increase the performance by run-
ning the partitions on different cores of a multi core controller.
Since the partitions may be separated by core boundaries or memory boundaries and
since the partitions can be stopped and restarted independently, the observable be-
havior to the SW-Cs for the communication between different partitions is rather similar
to the inter ECU communication than to the intra partition communication. The RTE
needs to use special mechanisms to communicate from one partition to another.
Like for the inter ECU communication, inter partition communication uses the connec-
tionless communication paradigm. This means, that a send operation is successful for
the sender, even if the receiving partition is stopped. A receiver will only, by means of
a timeout, be notified if the partition of the sender is stopped.
Unlike most basic software, the RTE does not have a main processing function. The
execution logic of the RTE is contained in the generated task bodies, the wrapper code
around the runnables whose execution RTE manages.
As the tasks that contain the SW-Cs runnables are uniquely assigned to partitions (see
page 11EER of [15]), the execution logic of the RTE is split among the partitions. It
can not be expected that the RTE generated wrapper code running in one partition can
directly access the memory objects assigned to the RTE part of another partition.
In this sense, there is one RTE per partition, that contains runnable entities.

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Still, RTE is responsible to support the communication between SW-Cs allocated to

the different partitions. According to the AUTOSAR software layered architecture, RTE
has to be independent of the micro controller architecture. AUTOSAR supports a wide
variety of multi core and memory protection architectures.
[SWS_Rte_02734] d The RTE generator shall support a mode in which the generated
code is independent of the micro controller. c(SRS_BSW_00161)
It can not be generally assumed that a cache coherent, shared memory is available
for the communication between partitions. Direct memory access and function calls
across partition boundaries are generally not possible. In the extreme case, communi-
cation might even be limited to a message passing interface.
To allow memory protection and multi core support in spite of [SWS_Rte_02734], the
AUTOSAR OS provides a list of mechanisms, that can be used for the communication
across cores (see [4]). Especially, the IOC has been designed to support the commu-
nication needs of RTE in a way that should not introduce additional run time overhead.
If a communication between Basic Software Modules is necessary for which the IOC
does not suffice, for example Sender-Receiver or Client-Server communication, there
are also mechanisms provided by the Basic Software Scheduler. These mechanisms
follow the Client-Server communication pattern or the Sender-Receiver communica-
tion pattern of the VFB but cannot be used for inter-ECU communication. The Basic
Software Scheduler can internally use the IOC to cross the partition boundaries. See
[24].
The following sections describe the use of some OS mechanisms that are designed for
inter partition communication.

4.3.4.1 Inter partition data communication using IOC

The general idea to allow the data communication between partitions in a most efficient
way and still be independent of the micro controller implementation is to take the buffers
and queues from the intra partition communication case and replace them with so
called IOC communication objects in the inter partition communication case.
In the ideal case, the access macros to the IOC communication object resolve to a
direct access to shared memory.
The IOC (Inter OS-Application Communication) is a feature of the AUTOSAR OS, which
provides a data oriented communication mechanism between partitions. The IOC pro-
vides communication buffers, queues, and protected access functions/macros to these
buffers that can be used from any pre-configured partitions concurrently.
The IOC offers communication of data to another core or between memory protected
partitions with guarantee of data consistency.

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All data communications including the passing of parameters and return values in client
server communication, can be implemented by using the IOC. The basic principle for
using the IOC is to replace the RTE internal communication buffers by IOC buffers.
The IOC supports 1:1 and N:1 communication. For 1:N communication, N IOC com-
munication objects have to be used. The IOC is configured and provides generated
APIs for each IOC communication object. In case of N:1 communication, each sender
has a separate API.
The IOC API is not reentrant.
[SWS_Rte_02737] d RTE shall prevent concurrent access to the same IOC API from
different ExecutableEntity execution-instances. c()
The IOC will use the appropriate mechanism to communicate between the partitions,
whether it requires communicating with another core, communicating with a partition
with a different level of trust, or communicating with another memory partition.
The IOC channels are configured in the OS Configuration. Their configurations has to
be provided as inputs for the RTE generator when the external configuration switch
strictConfigurationCheck [SWS_Rte_05148] is set to true, and can be pro-
vided by the RTE Generator or RTE Configuration Editor when strictConfigura-
tionCheck is set to false (see [SWS_Rte_05150]).
The IOC APIs use:
1. types declared by user on input to RTE (sender-receiver communication across
OsApplication boudaries).
2. types created by RTE to collect client-server operation arguments into single data
structure.
For the second item, RTE uses internal types that have to be described as Imple-
mentationDataTypes (see [SWS_Rte_08400]).
The signaling between partitions is not covered by the IOC. The callbacks of IOC are
in interrupt context and are mainly intended for direct use by BSW. For the signaling
between partitions, RTE can use the activation of tasks or setting of events, see section
4.3.4.4.
[SWS_Rte_02736] d The RTE shall not execute ExecutableEntitys in the context
of IOC callbacks. c()
This is necessary to ensure that ExecutableEntitys will not be executed in interrupt
context or when a partition is terminated or restarted.

4.3.4.2 Inter partition data communication using Basic Software Scheduler

The Basic Software Scheduler provides Sender-Receiver and Client-Server communi-

cations mechanisms for communication between Basic Software Modules in different

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partitions. Therefore these communication paradigms can be used by Basic Software

Modules in a multi core environment.
The usage is described in [9].
For Sender-Receiver communication currently only "explicit" transmission of data ele-
ments with "event" semantic (queued) is supported.
[SWS_Rte_08763] d For inter-ECU Sender-Receiver communication the length of the
queue is specified by the attribute queueLength of the BswQueuedDataRecep-
tionPolicy which references through receivedData the VariableDataProto-
type of the Sender-Receiver communication. c(SRS_Rte_00243)
[SWS_Rte_08764] d The RTE generator shall reject a queueLength attribute of a
BswQueuedDataReceptionPolicy with a queue length 0. c(SRS_Rte_00243)

4.3.4.3 Accessing COM from slave core in multicore configuration

In case of a multi core configuration, if a software component on the slave core wants
to send data to a software component on another ECU, the RTE has to send data
from the slave core through the IOC to the master core which in turn calls the send
API of COM. The same behavior is required for receive case where the master core is
responsible for forwarding received COM data to slave core through IOC.
[SWS_Rte_08306] d It is the RTEs responsibility to interact with COM whenever it is
needed. c()
This requires some special handling by the RTE since it implies, at least in the send
case, the need of a scheduable entity to do the actual call of COM send API.
[SWS_Rte_08307] d The RTE shall generate two (BswSchedulableEntity s):
Rte_ComSendSignalProxyPeriodic.
Rte_ComSendSignalProxyImmediate.
Rte_ComSendSignalProxyPeriodic shall handle the sending of periodic signals
and Rte_ComSendSignalProxyImmediate shall handle the sending of immediate
signals. c()
[SWS_Rte_08308] d It shall be a possible to configure whether the return value of RTE
APIs is based on RTE-IOC interaction or RTE-COM interaction using the configuration
parameter RteIocInteractionReturnValue. A warning should preferably be is-
sued in case RTE-COM interaction return value is chosen since that will cause major
performance decrease. c()

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4.3.4.3.1 Example sequence diagrams of accessing COM from Slave core

Figure 4.45 shows a sequence diagram of how receive data through COM from slave
core may be implemented by RTE.

Master Core Slave Core

COM RTE IOC RTE SWC

Com_cbk(x)
IocWrite_<id>(x)

Rte_Read()
IocRead_<id>(&x)

Figure 4.45: Receive data through COM from slave core

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Figure 4.46 shows a sequence diagram of how send from COM to slave core may be
implemented by RTE.

Master Core Slave Core

ComSendSignal
COM ProxyImmediate IOC RTE SWC

RTE_Write(x)
IocWrite_<id>(returnInfo)
push(buffer_<id>,returnInfo)

IocWrite_<id>(x)
push(buffer_<id>,x)

Sw_Interrupt
WaitEvent(returnInfo.event)

IocRead_<id>(&x)

(*IocRead[returnInfo])(x)
ComSendSignal(x)
r

(*returnInfo.IocWriteReturn)(r)

SetEvent(returnInfo.event>)
IocRead_<id>(&r)
r

Figure 4.46: Send data through COM from slave core

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Figure 4.47 shows a sequence diagram of how send from COM to slave core using
return value based on RTE-IOC interaction may be implemented by RTE.

Master Core Slave Core

ComSendSignal
COM ProxyImmediate IOC RTE SWC

RTE_Write(x)
IocWrite_<id>(signal_id)
push(buffer_<id>, signal_id)

push(buffer_<id>,x) IocWrite_<id>(x)
r

Sw_Interrupt

IocRead_<id>(&signal_id)

(*IocRead[signal_id])(x)

ComSendSignal(x)

Figure 4.47: Send data through COM from slave core using return value based on RTE-
IOC interaction

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4.3.4.4 Signaling and control flow support for inter partition communication

The OS representation of a partition is an OS Application.

This is a (non-exhaustive) summary of OS features that can be used for signaling and
control flow across partition boundaries:
activation of tasks
start and stop of schedule tables
event signaling
alarms
spin locks (for inter core synchronization)
The following are not available for inter core signaling:
OS Resource
DisableAllInterrupts
For inter core synchronization, spin locks are provided. But, for efficiency reasons they
should be used with care.

4.3.4.5 Trusted Functions

The call-trusted-function mechanism of AUTOSAR OS can be used in a memory pro-

tected controller to implement a function call from an untrusted to a trusted partition.
This Trusted Partition is a partition that may have full access to the OS objects of other
partitions on the same core. The Basic Software is assumed to reside in a trusted
partition. It is assumed that the trusted partition cannot be terminated or restarted.
The typical use case for the call-trusted-function mechanism are AUTOSAR services
which are usually provided by a client/server interface where the service side resides
together with the basic software in the trusted partition.
Beware that this mechanism can not be used between two untrusted partitions or be-
tween cores.
The trusted functions are configured in the OS Configuration. Their configurations
shall be provided as inputs for the RTE generator when the external configuration
switch strictConfigurationCheck [SWS_Rte_05148] is set to true, and can be
provided by the RTE Generator or RTE Configuration Editor when strictConfigu-
rationCheck is set to false (see [SWS_Rte_05150]).
[SWS_Rte_07606] d Direct start of an ExecutableEntity execution-instance by the
mean of a trusted function shall only be used for the start of an ExecutableEntity
in the Trusted Partition. c(SRS_Rte_00195, SRS_Rte_00210)

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The OS ensures that the partition of the caller is not terminated or restarted when a
trusted function is executed. If needed, the termination or restart of the callers partition
is delayed after the trusted function returns.
RTE has to ensure, that the OS does not kill an RTE-generated task due to stopping
or restarting a partition while this task is executing a function call to BSW or to the
software component of another partition when this call is not a pure function.
For this purpose, RTE can use either the OS mechanism of trusted function call, or it
can allocate the server to a different task than the client.
[SWS_Rte_02761] d In a partitioned system that supports stop or restart of partitions,
the RTE shall not use a direct function call (without use of OS call trusted function)
from a task of an untrusted partition to BSW or to the SW-C of another partition unless
this is a pure function. c(SRS_Rte_00196)
Please note that [SWS_Rte_02761] might require the use of OS call trusted function
for a partitioned system even without memory protection.

4.3.4.6 Memory Protection and Pointer Type Parameters in RTE API

In a memory protected ECU, a SW-C from an untrusted partition might misuse the
transition to the trusted context to modify memory in another partition. This can occur
when a pointer to a different memory partition is passed from the untrusted partition to
the trusted context. The RTE shall avoid this misuse by at least checking the validity
of the address of the pointer, and, where possible, also checking the integrity of the
associated memory object.
[SWS_Rte_02752] d When a SW-C in an untrusted partition receives (OUT parameter)
or provides (IN parameter with composite data type) an ArgumentDataPrototype
or VariableDataPrototype, it hands over a pointer to a memory object to an RTE
API. The RTE shall only forward this pointer to a trusted SW-C after it has checked that
the whole memory object is owned by the callers partition. c(SRS_Rte_00210)
[SWS_Rte_02753] d When a SW-C in an untrusted partition passes an Argument-
DataPrototype or VariableDataPrototype, as a reference type to a SW-C
in a trusted partition (DATA_REFERENCE as an IN parameter), the RTE shall only
check that the callers partition owns the start address of the referenced memory. c
(SRS_Rte_00210)
Note to [SWS_Rte_02753]: The RTE only checks whether the start address refer-
enced directly by the DataPrototypes belongs to the calling partition. Because the
RTE is not aware of the semantic of the pointed reference, it cannot check if the ref-
erenced object is completely contained in the calling partition (e.g. the RTE does not
know the size and does not know if the referenced object also contains references
to other objects). The BSW is responsible to make sure that the referenced memory
object does not cross memory section boundaries.

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The OS API CheckTaskMemoryAccess can be used to fulfill [SWS_Rte_02752] and

[SWS_Rte_02753].

4.3.5 PortInterface Element Mapping and Data Conversion

AUTOSAR supports the connection of an R-port to a P-port with an interface that is not
compatible in the sense of the AUTOSAR compatibility rules. In addition, for sender-
receiver communication it is possible to specify how data elements are represented
given that the communication requires the usage of a dedicated communication bus.
In these cases the generated RTE has to support the conversion and re-scaling of
data.

4.3.5.1 PortInterface Element Mapping

Per default the shortNames of PortInterface elements are used to identify the
matching element pairs of connected ports. In case of non fitting names might
be caused due to distributed development, off-the-shelf development, or re-use of soft-
ware components it is required to explicitly specify which PortInterface elements
shall correlate. This is modelled with PortInterfaceMappings. A connection of two
ports can be associated with a set of PortInterfaceMappings. If two ports are
connected and a PortInterfaceMapping for the pair of interfaces of the two ports
is associated with the connection, the interface elements are mapped and converted
as specified in the PortInterfaceMapping. If no PortInterfaceMapping for the
respective pair of interfaces is associated with the connection, the ordinary interface
compatibility rules are applied.
The general approach is to perform the data conversion in the RTE of the ECU imple-
menting the R-port. The reason for this design decision is that in case of 1:n sender-
receiver communication it is inefficient to perform all the data conversions for the mul-
tiple receivers on the sender side and then send multiple sets of the same data just in
different representations over the communication bus.
[SWS_Rte_03815] d The RTE shall support the mapping of sender-receiver interfaces,
parameter interfaces and non-volatile data interface elements. c(SRS_Rte_00182)
[SWS_Rte_03816] d If a P-port specified by a SenderReceiverInterface or Nv-
DataInterface is connected to an R-port with an incompatible interface and a
VariableAndParameterInterfaceMapping for both interfaces is associated with
the connection, the RTE of the ECU implementing the R-port shall map and convert the
data elements of the senders interface to the data elements of the receivers interface.
c(SRS_Rte_00182)
[SWS_Rte_07091] d The RTE shall support the Mapping of elements of composite
data types in the context of a mapping of SenderReceiverInterface, NvDataIn-
terface or ParameterInterface elements. c(SRS_Rte_00182, SRS_Rte_00234)

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[SWS_Rte_07092] d The RTE of the ECU implementing the R-port shall map and con-
vert the composite data type elements of DataPrototypes of the senders interface
to the composite data type elements of DataPrototypes of the receivers interface
according the SubElementMapping
if a P-port specified by a SenderReceiverInterface, NvDataInterface or Pa-
rameterInterface is connected to an R-port with an incompatible interface and
a VariableAndParameterInterfaceMapping exists for both interfaces and is as-
sociated with the connection and
the SubElementMapping maps composite data type elements of the provided inter-
face to composite data type elements of the required interface. c(SRS_Rte_00182,
SRS_Rte_00234)
[SWS_Rte_07099] d The RTE of the ECU implementing the R-port shall map and con-
vert the composite data type elements of DataPrototype of the senders interface
to the primitive DataPrototype of the receivers interface according the SubEle-
mentMapping
if a P-port specified by a SenderReceiverInterface, NvDataInterface or Pa-
rameterInterface is connected to a R-port with an incompatible interface and
a VariableAndParameterInterfaceMapping exists for both interfaces and is
associated with the connection and the SubElementMapping exclusively maps
one composite data type element of the provided interface c(SRS_Rte_00182,
SRS_Rte_00234)
According to [TPS_SWCT_01551], incomplete SubElementMappings are allowed
for unqueued communication, when unmapped dataElements on the receiver side
have an initValue.
Please note that the DataPrototypes of the provide port and DataPrototypes of
the require port might use exclusively ApplicationDataTypes, exclusively Imple-
mentationDataTypes or both kinds of AutosarDataTypes in a mixed manner.
[SWS_Rte_02307] d The RTE generator shall reject configurations that violate [con-
str_1300]. c()
[SWS_Rte_03817] d If a P-port specified by a SenderReceiverInterface or Nv-
DataInterface is connected to an R-port with an incompatible interface and no
VariableAndParameterInterfaceMapping for this pair of interfaces is associ-
ated with the connection, the RTE generator shall reject the input as an invalid config-
uration. c(SRS_Rte_00182, SRS_Rte_00018)
[SWS_Rte_03818] d The RTE shall support the mapping of client-server interface ele-
ments. c(SRS_Rte_00182)
[SWS_Rte_03819] d If a P-port specified by a ClientServerInterface is con-
nected to an R-port with an incompatible interface and a ClientServerInter-
faceMapping for both interfaces is associated with the connection, the RTE of the
ECU implementing the R-port, i. e. the client, shall map the operation and map and
convert the operation arguments of the clients interface to the operation arguments of
the servers interface. c(SRS_Rte_00182)

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[SWS_Rte_07925] d If a ClientServerApplicationErrorMapping exists, the

RTE shall translate the error codes of the server into the corresponding error codes
described by the mapping. c(SRS_Rte_00182, SRS_Rte_00123)
[SWS_Rte_07926] d If a ClientServerApplicationErrorMapping exists and a
particular error of the server is not mapped, this error shall be translated to RTE_E_OK.
c(SRS_Rte_00182, SRS_Rte_00123)
[SWS_Rte_03820] d If a P-port specified by a ClientServerInterface is con-
nected to an R-port with an incompatible interface and no ClientServerInter-
faceMapping for this pair of interfaces is associated with the connection, the
RTE generator shall reject the input as an invalid configuration. c(SRS_Rte_00182,
SRS_Rte_00018)
[SWS_Rte_03821] d The RTE shall support the mapping of ModeSwitchInterface
elements. c(SRS_Rte_00182)
[SWS_Rte_03822] d If a P-port specified by a ModeSwitchInterface is connected
to an R-port with an incompatible interface and a ModeInterfaceMapping for both
interfaces is associated with the connection, the RTE of the ECU implementing the
R-port shall map and convert the mode elements of the senders interface to the mode
elements of the receivers interface. c(SRS_Rte_00182)
[SWS_Rte_03823] d If a P-port specified by a ModeSwitchInterface is connected
to an R-port with an incompatible interface and no ModeInterfaceMapping for this
pair of interfaces is associated with the connection, the RTE generator shall reject the
input as an invalid configuration. c(SRS_Rte_00182, SRS_Rte_00018)
[SWS_Rte_03824] d The RTE shall support the mapping of trigger interface elements.
c()
[SWS_Rte_03825] d If a P-port specified by a TriggerInterface is connected to
an R-port with an incompatible interface and a TriggerInterfaceMapping for both
interfaces is associated with the connection, the RTE of the ECU implementing the
R-port shall map the trigger of the senders interface to the trigger of the receivers
interface. c()
[SWS_Rte_03826] d If a P-port specified by a TriggerInterface is connected to
an R-port with an incompatible interface and no TriggerInterfaceMapping for this
pair of interfaces is associated with the connection, the RTE generator shall reject the
input as an invalid configuration. c(SRS_Rte_00018)
In order to generate the RTE for the ECU implementing the R-ports, the RTE gener-
ator has to know the interfaces of the P-ports that are connected over the bus. This
information is provided in the ECU extract via the networkRepresentationProps
(see section 4.3.6) specified at the ISignal representing the data element.

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4.3.6 Network Representation

4.3.6.1 Network Representation with no data transformation

For sender-receiver communication where no data transformation applies, it is possible

to specify how data elements are represented given that the communication requires
the usage of a dedicated communication bus. For this purpose networkRepresen-
tationProps and physicalProps can be specified at the ISignal respectively
SystemSignal, describing the representation of the data element on the communi-
cation bus via the attributes baseType and compuMethod.
[SWS_Rte_07842] d The RTE generator shall reject any input that violates
[TPS_SYST_02001] as an invalid configuration. c(SRS_Rte_00018)
[SWS_Rte_03827] d The RTE of the transmitting ECU shall perform the conversion of
the data element that has to be sent over a communication bus to the representation
specified by the baseType of the networkRepresentationProps of the ISignal
and the compuMethod of the physicalProps of the respective SystemSignal if
the dataTypePolicy of the ISignal is set to override or legacy. The converted
data shall be passed to COM. c(SRS_Rte_00181)
[SWS_Rte_06737] d If the dataTypePolicy of the respective ISignal is set to
networkRepresentationFromComSpec and the networkRepresentation of
the respective SenderComSpec is defined, the RTE of the transmitting ECU shall per-
form the conversion of the data element that has to be sent over a communication
bus to the representation specified by the baseType and compuMethod of the net-
workRepresentation of the respective SenderComSpec. The converted data shall
then be passed to COM. c(SRS_Rte_00181)
[SWS_Rte_03828] d The RTE of the receiving ECU shall perform the conversion of
the data element that is received over a communication bus from the representation
specified by the baseType of the networkRepresentationProps of the ISignal
and the compuMethod of the physicalProps of the respective SystemSignal to
the data elements application data type if the dataTypePolicy of the ISignal is
set to override or legacy. In this case [SWS_Rte_03816] shall not be applied c
(SRS_Rte_00181)
[SWS_Rte_06738] d If the dataTypePolicy of the respective ISignal is set to
networkRepresentationFromComSpec and the networkRepresentation of
the respective ReceiverComSpec is defined, the RTE of the receiving ECU shall
perform the conversion of the data element that is received over a communica-
tion bus from the representation specified by the baseType and compuMethod of
the networkRepresentation of the respective ReceiverComSpec. In this case
[SWS_Rte_03816] shall not be applied. c(SRS_Rte_00181)
[SWS_Rte_07844] d If the dataTypePolicy of the respective ISignal is set to
networkRepresentationFromComSpec but there is no networkRepresenta-
tion defined by the ReceiverComSpec (respectively SenderComSpec) then no con-
version shall be performed by RTE. c(SRS_Rte_00181)

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As an alternative to networkRepresentationProps the representation of the

VariableDataPrototypes and ArgumentDataPrototypes on the communica-
tion bus can be expressed by the used DataTypes in the PortInterfaces on the
outerPorts of the CompositionSwComponentType describing the ecu extract. In
this case the conversion between the network representation and the representation
for the software components on the ecu are described by a PortInterfaceMapping
which in turn is referenced by the DelegationSwConnector connecting the inner-
Port of the software component and the outerPort. These supports especially
conversions of texttable data representation where a TextTableMapping is needed
to describe the particular conversion rule.
[SWS_Rte_07828] d If a PortInterfaceMapping is specified at the Delegation-
SwConnector of a P-port, the RTE of the transmitting ECU shall perform the conver-
sion of the VariableDataPrototypes or ArgumentDataPrototypes that has to
be sent over a communication bus to the representation specified by the outerPort.
The converted data shall be passed to COM. c(SRS_Rte_00181)
[SWS_Rte_07829] d d If a PortInterfaceMapping is specified at the Delega-
tionSwConnector of a R-port, the RTE of the receiving ECU shall perform the con-
version of the VariableDataPrototypes or ArgumentDataPrototypes that is re-
ceived over a communication bus from the representation specified by the outerPort
to the representation specified by the innerPort. In this case [SWS_Rte_03816]
shall not be applied. c(SRS_Rte_00181).

4.3.6.2 Network Representation with data transformation

For sender-receiver communication where data transformation applies, it is possible, to

specify how data elements are represented given that the communication requires the
usage of a dedicated communication bus. For this purpose ISignal.Transforma-
tionISignalProps. DataPrototypeTransformationProps.networkRepre-
sentationProps can be specified describing the representation of the data element
on the communication bus via the attributes baseType and compuMethod.
[SWS_Rte_04536] d The RTE of the transmitting ECU shall perform the conversion of
each primitive element, which belongs to the data to be transformed and sent over
a communication bus to the representation specified by the baseType and com-
puMethod of the ISignal.TransformationISignalProps. DataPrototype-
TransformationProps.networkRepresentationProps for the respective primi-
tive element. The converted data shall be passed to the first transformer in the chain.
c(SRS_Rte_00181)
[SWS_Rte_04537] d If the ISignal.TransformationISignalProps. DataPro-
totypeTransformationProps.networkRepresentationProps is not defined
for a primitive element of a transformed ISignal, the RTE of the transmitting ECU shall
perform the conversion of that primitive element based on the baseType specified at
the ImplementationDataType used by the PPortPrototype. The converted data
shall be passed to the first transformer in the chain. c(SRS_Rte_00181)

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[SWS_Rte_04538] d The RTE of the receiving ECU shall perform the conversion
of each primitive element that is received over a communication bus and then
re-transformed from the representation specified by the baseType and the com-
puMethod of the ISignal.TransformationISignalProps.DataPrototype-
TransformationProps. networkRepresentationProps. c(SRS_Rte_00181)
[SWS_Rte_04539] d If the ISignal.TransformationISignalProps. DataPro-
totypeTransformationProps.networkRepresentationProps is not defined
for a primitive element of a transformed networkRepresentationProps, the RTE
of the receiving ECU shall perform the conversion of that primitive element based on
the baseType specified at the ImplementationDataType used by the RPortPro-
totype. c(SRS_Rte_00181)

4.3.7 Data Conversion

[SWS_Rte_03829] d The RTE shall support the conversion of an identical or linear

scaled data representation to another identical or linear scaled data representation. In
this context, the term "linear scaled data representation" also includes floating-point
data representations. c(SRS_Rte_00182)
[SWS_Rte_08801] d The RTE shall support the conversion integer-to-float and float-to-
integer. It is recommended to consider implication of MISRA-C rule 10.3, in particular,
the requirement for no implicit conversion. c(SRS_Rte_00182)
Today the RTE Specification does not define any specific behavior supporting float to
integer and integer to float conversions. This enables the RTE implementers to develop
the most efficient, stable and robust solution.
[SWS_Rte_03830] d The RTE shall support the conversion of a texttable data rep-
resentation (enumeration or bitfield) to another texttable data representation. c
(SRS_Rte_00182)
[SWS_Rte_03855] d The RTE shall support the conversion of a mixed linear scaled
and texttable data representation to another mixed linear scaled and texttable data
representation. c(SRS_Rte_00182)
[SWS_Rte_03856] d The RTE shall support the conversion between a texttable data
representation (enumeration) and a mixed linear scaled and texttable data represen-
tation. In this case only the enumeration part of the data representation shall be con-
verted, the linear scaled part shall be handled as out of range data. c(SRS_Rte_00182)
[SWS_Rte_03857] d The RTE shall support the conversion between an identical or
linear scaled data representation and a mixed linear scaled and texttable data repre-
sentation. A scale with a compuConst shall be handled as out of range data if the
mapping to a value is not defined by a TextTableMapping. c(SRS_Rte_00182)
[SWS_Rte_03860] d The RTE shall support the conversion of composite data
representations. In this case, the respective requirements [SWS_Rte_03829],
[SWS_Rte_03830], [SWS_Rte_03855], [SWS_Rte_03856], [SWS_Rte_03857],

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[SWS_Rte_03831], [SWS_Rte_03832], and [SWS_Rte_03833] are applicable to the

individual composite elements. c(SRS_Rte_00182)
[SWS_Rte_03831] d The RTE generator shall reject any input that requires a con-
version which is not supported according to [SWS_Rte_03829], [SWS_Rte_03830],
[SWS_Rte_03855], [SWS_Rte_03856], or [SWS_Rte_03860] as an invalid configura-
tion. c(SRS_Rte_00182, SRS_Rte_00018)
[SWS_Rte_07928] d The data conversion shall be supported for data
types that refer to CompuMethods of category LINEAR, IDENTICAL,
SCALE_LINEAR_AND_TEXTTABLE, TEXTTABLE , BITFIELD_TEXTTABLE and
CompuMethods of category RAT_FUNC with a reciprocal linear data scaling. c
(SRS_Rte_00182)
Note: The definition of a reciprocal linear data scaling is given in Software Component
Template [2], [TPS_SWCT_01550]
[SWS_Rte_03832] d For the conversion between two data representations with lin-
ear scaling described either by an ApplicationDataType or a combination of
BaseType and CompuMethod (used for the specification of the network represen-
tation at the ComSpec respectively the SystemSignal) the RTE generator shall
derive the data conversion code automatically from the referred CompuMethods
of the two representations. In this context the scaling of a data representa-
tion is linear if the referred CompuMethod is of category IDENTICAL, LINEAR,
RAT_FUNC or SCALE_LINEAR_AND_TEXTTABLE. In case of a CompuMethod of cat-
egory SCALE_LINEAR_AND_TEXTTABLE this requirement applies to the linear scaled
part only. c(SRS_Rte_00182)
For a linear conversion the linear conversion factor can be calculated out of the fac-
torSiToUnit and offsetSiToUnit attributes of the referred Units and the Com-
puRationalCoeffs of a compuInternalToPhys of the referred CompuMethods.
Further information about Linear Data Scaling is given in document Software Compo-
nent Template [2].

Example 4.9

A software component SwcA on an ECU EcuA sends a data element u of an uint16

type t_VoltageAtSender via its port SenderPort. The referenced CompuMethod
is cm_VoltageAtSender, describing a fixpoint representation with offset 0 and LSB
1
4
= 22 . The port SenderPort is connected to the port ReceiverPort of a soft-
ware component SwcB that is deployed on a different ECU EcuB. The sent data ele-
ment u is mapped to a data element u of an uint16 type t_VoltageAtReceiver on
the receiving side that references a CompuMethod named cm_VoltageAtReceiver.
cm_VoltageAtReceiver describes a fixpoint representation with offset 16 8
= 2 and
1 3
LSB 8 = 2 . For transportation over the bus a networkRepresentation that refer-
ences an uint8 type t_VoltageOnNetwork is specified, using a fixpoint representation
described by the CompuMethod cm_VoltageOnNetwork with offset 21 = 0.5 and LSB
1
2
= 21 .

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Definition of the CompuMethods in XML:

<COMPU-METHOD>
<SHORT-NAME>cm_VoltageAtSender</SHORT-NAME>
<CATEGORY>LINEAR</CATEGORY>
<COMPU-INTERNAL-TO-PHYS>
<COMPU-SCALES>
<COMPU-SCALE>
<COMPU-RATIONAL-COEFFS>
<COMPU-NUMERATOR><V>0</V><V>1</V></COMPU-NUMERATOR>
<COMPU-DENOMINATOR><V>4</V></COMPU-DENOMINATOR>
</COMPU-RATIONAL-COEFFS>
</COMPU-SCALE>
</COMPU-SCALES>
</COMPU-INTERNAL-TO-PHYS>
</COMPU-METHOD>

<COMPU-METHOD>
<SHORT-NAME>cm_VoltageAtReceiver</SHORT-NAME>
<CATEGORY>LINEAR</CATEGORY>
<COMPU-INTERNAL-TO-PHYS>
<COMPU-SCALES>
<COMPU-SCALE>
<COMPU-RATIONAL-COEFFS>
<COMPU-NUMERATOR><V>16</V><V>1</V></COMPU-NUMERATOR>
<COMPU-DENOMINATOR><V>8</V></COMPU-DENOMINATOR>
</COMPU-RATIONAL-COEFFS>
</COMPU-SCALE>
</COMPU-SCALES>
</COMPU-INTERNAL-TO-PHYS>
</COMPU-METHOD>

<COMPU-METHOD>
<SHORT-NAME>cm_VoltageOnNetwork</SHORT-NAME>
<CATEGORY>LINEAR</CATEGORY>
<COMPU-INTERNAL-TO-PHYS>
<COMPU-SCALES>
<COMPU-SCALE>
<COMPU-RATIONAL-COEFFS>
<COMPU-NUMERATOR><V>1</V><V>1</V></COMPU-NUMERATOR>
<COMPU-DENOMINATOR><V>2</V></COMPU-DENOMINATOR>
</COMPU-RATIONAL-COEFFS>
</COMPU-SCALE>
</COMPU-SCALES>
</COMPU-INTERNAL-TO-PHYS>
</COMPU-METHOD>

Implementation of Rte_Send on the sending ECU EcuA:

1 Std_ReturnType
2 Rte_Send_SwcA_SenderPort_u(t_voltageAtSender u)
3 {
4 ...
5 /*
6 u_NetworkRepresentation
7 = ((u * LSB_sender + off_sender) - off_network) / LSB_network
8 = ((u / 4 + 0 ) - 0.5 ) * 2

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9 = (u / 2 ) - 1
10 */
11 u_NetworkRepresentation = (uint8) ((u >> 1) - 1);
12 ...
13 }

Implementation of Rte_Receive on the receiving ECU EcuB:

1 Std_ReturnType
2 Rte_Receive_SwcB_ReceiverPort_u(t_voltageAtReceiver * u)
3 {
4 ...
5 /*
6 *u
7 *u = ((u_NetworkRepresentation * LSB_network + off_network)
8 - off_receiver) / LSB_receiver
9 = ((u_NetworkRepresentation / 2 + 0.5 )
10 - 2 ) * 8
11 = (u_NetworkRepresentation * 4 + 4 )
12 - 16
13 = u_NetworkRepresentation * 4 - 12
14 * /
15 *u = (uint16) ((u_NetworkRepresentation << 2) - 12);
16 ...
17 }

Following examples show possible implementations for a table conversion where

DataPrototypes with a CompuMethod of category BITFIELD_TEXTTABLE are in-
volved.

Example 4.10

Conversion between a DataPrototype with a CompuMethod of category TEXT-

TABLE (in this case describing a Boolean) and a DataPrototype with a Com-
puMethod of category BITFIELD_TEXTTABLE:
Definition of the TextTableMapping in XML:
<PORT-INTERFACE-MAPPING-SET>
<SHORT-NAME>PortMappingSet</SHORT-NAME>
<PORT-INTERFACE-MAPPINGS>
<VARIABLE-AND-PARAMETER-INTERFACE-MAPPING>
<SHORT-NAME>Mapping_LDW_BF</SHORT-NAME>
<DATA-MAPPINGS>
<DATA-PROTOTYPE-MAPPING>
<FIRST-DATA-PROTOTYPE-REF DEST="VARIABLE-DATA-PROTOTYPE">
/Example/Interfaces/One/LDW
</FIRST-DATA-PROTOTYPE-REF>
<SECOND-DATA-PROTOTYPE-REF DEST="VARIABLE-DATA-PROTOTYPE">
/Example/Interfaces/Two/bitfield
</SECOND-DATA-PROTOTYPE-REF>
<TEXT-TABLE-MAPPINGS>
<TEXT-TABLE-MAPPING>
<IDENTICAL-MAPPING>false</IDENTICAL-MAPPING>

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<MAPPING-DIRECTION>bidirectional</MAPPING-DIRECTION>
<BITFIELD-TEXTTABLE-MASK-SECOND>
0b00000100
</BITFIELD-TEXTTABLE-MASK-SECOND>
<VALUE-PAIRS>
<TEXT-TABLE-VALUE-PAIR>
<FIRST-VALUE>0</FIRST-VALUE>
<SECOND-VALUE>0</SECOND-VALUE>
</TEXT-TABLE-VALUE-PAIR>
<TEXT-TABLE-VALUE-PAIR>
<FIRST-VALUE>1</FIRST-VALUE>
<SECOND-VALUE>4</SECOND-VALUE>
</TEXT-TABLE-VALUE-PAIR>
</VALUE-PAIRS>
</TEXT-TABLE-MAPPING>
</TEXT-TABLE-MAPPINGS>
</DATA-PROTOTYPE-MAPPING>
</DATA-MAPPINGS>
</VARIABLE-AND-PARAMETER-INTERFACE-MAPPING>
</PORT-INTERFACE-MAPPINGS>
</PORT-INTERFACE-MAPPING-SET>

C code for Implementation of Rte_Write:

1 Std_ReturnType Rte_Write_<p>_<o>(boolean v) {
2 /* fetch the bit field from the RAM Block */
3 uint32 *bitfield = Rte_RamBlk_<BlkNr>.bitfield;
4 /* data consistency block on */
5 /* bit operation (masking & conversion) - bit position 6 is deduced
6 from BITFIELD-TEXTTABLE-MASK-SECOND */
7 if(v == 0) Bfx_ClrBit_u8u8(*bitfield, 6);
8 else Bfx_SetBit_u8u8(*bitfield, 6);
9 /* data consistency block off */
10 }

C code for Implementation of Rte_Read:

1 Std_ReturnType Rte_Read_<p>_<o>(boolean *v) {
2 /* fetch the bit field from the RAM Block */
3 uint32 bitfield = Rte_RamBlk_<BlkNr>.bitfield;
4 /* bit operation (masking & conversion) - bit position 6 is deduced
5 from BITFIELD-TEXTTABLE-MASK-SECOND */
6 *v = Bfx_GetBit_u8u8u8(bitfield, 6);
7 }

Example 4.11

Conversion between two DataPrototypes with a CompuMethod of category BIT-

FIELD_TEXTTABLE (mapping of 32bit bitfield of type uint32 to 4bit bitfield of type
uint8):
Definition of the TextTableMapping in XML:
<PORT-INTERFACE-MAPPING-SET>
<SHORT-NAME>PortMappingSet</SHORT-NAME>

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<PORT-INTERFACE-MAPPINGS>
<VARIABLE-AND-PARAMETER-INTERFACE-MAPPING>
<SHORT-NAME>Mapping_BF32_BF4</SHORT-NAME>
<DATA-MAPPINGS>
<DATA-PROTOTYPE-MAPPING>
<FIRST-DATA-PROTOTYPE-REF DEST="VARIABLE-DATA-PROTOTYPE">
/Example/Interfaces/One/BF32
</FIRST-DATA-PROTOTYPE-REF>
<SECOND-DATA-PROTOTYPE-REF DEST="VARIABLE-DATA-PROTOTYPE">
/Example/Interfaces/Two/BF4
</SECOND-DATA-PROTOTYPE-REF>
<TEXT-TABLE-MAPPINGS>
<TEXT-TABLE-MAPPING>
<IDENTICAL-MAPPING>true</IDENTICAL-MAPPING>
<MAPPING-DIRECTION>firstToSecond</MAPPING-DIRECTION>
<BITFIELD-TEXTTABLE-MASK-FIRST>
0b00000000000000000000000000001111
</BITFIELD-TEXTTABLE-MASK-FIRST>
<BITFIELD-TEXTTABLE-MASK-SECOND>
0b00001111
</BITFIELD-TEXTTABLE-MASK-SECOND>
</TEXT-TABLE-MAPPING>
</TEXT-TABLE-MAPPINGS>
</DATA-PROTOTYPE-MAPPING>
</DATA-MAPPINGS>
</VARIABLE-AND-PARAMETER-INTERFACE-MAPPING>
</PORT-INTERFACE-MAPPINGS>
</PORT-INTERFACE-MAPPING-SET>

C code for Implementation of Rte_Read:

1 Std_ReturnType Rte_Read_<p>_<o>(uint8 *v) {
2 /* fetch the bit field from the RAM Block */
3 uint32 bitfield = Rte_RamBlk_<BlkNr>.bitfield;
4 /* bit operation (masking & shifting) - start position 28 and length
5 4 are deduced from BITFIELD-TEXTTABLE-MASK-FIRST */
6 *v = Bfx_GetBits_u8u8u8_u32(bitfield, 28, 4) &
7 BitfieldTexttableMaskSecond;
8 }

The intention of this specification is not to describe any mechanism that supports the
generation of identical conversion code for each implementation of an RTE generator.
Even if the generated C code for the conversion would be the same, the numerical
result of the conversion still depends on the microcontroller target and the compiler.
Strategies how to handle the conversion of values that are out of range of the target
representation are described in section 4.3.8.
[SWS_Rte_03833] d For the conversion between two texttable data representations
(enumerations or bitfields) described either by an ApplicationDataType or an Im-
plementationDataType (used for the specification of the network representation)
the RTE generator shall generate the data conversion code according to the Text-

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TableMapping. This requirement also applies to the texttable part of a mixed linear
scaled and texttable data representation. c(SRS_Rte_00182)

4.3.8 Range Checks during Runtime

A software component might try to send a value that is outside the range that is spec-
ified at a dataElement or ISignal. In case of different ranges the result of a data
conversion might also be a value that is out of range of the target representation. For a
safe handling of these use cases the RTE provides range checks during runtime. For
an overview see figure 4.48.
[SWS_Rte_08024] d Range checks during runtime shall occur after data invalidation,
i.e. first the handleNeverReceived check, then the invalidation check and lastly the
range check shall be effected. c(SRS_Rte_00180)
[SWS_Rte_03861] d The range check is intended to be performed according to the
following rule: If a upper/lower limit is specified at the DataConstr, this value shall be
taken for the range check. If it is not specified at the DataConstr, the highest/lowest
representable value of the datatype shall be used. c(SRS_Rte_00180)
Whether a range check is required is specified in case of intra ECU communication at
the handleOutOfRange attribute of the respective SenderComSpec or Receiver-
ComSpec and in case of inter ECU communication at the handleOutOfRange at-
tribute of ISignalProps of the sending or receiving ISignal.

Range checks at senders side

Range checks during runtime for intra ECU communication at the senders side are
described in the following requirements:
[SWS_Rte_08026] d The RTE shall implement a range check of sent data in the
sending path of a particular component if the handleOutOfRange is defined at the
SenderComSpec and has any value other than none. In this case all receivers receive
the value after the range check was applied. c(SRS_Rte_00180)
[SWS_Rte_08039] d The RTE shall use the preceding limits ([SWS_Rte_07196]) from
the DataPrototype in the PPortPrototype or PRPortPrototype for the range
check of sent data in the sending path of a particular component if the handleOut-
OfRange is defined at the SenderComSpec. c(SRS_Rte_00180)
[SWS_Rte_03839] d If for a dataElement to be sent a SenderComSpec with han-
dleOutOfRange=ignore is provided, a range check shall be implemented in the
sending component. If the value is out of bounds, the sending of the dataElement
shall not be propagated. This means for a non-queued communication that the last
valid value will be propagated and for a queued communication that no value will be
enqueued.

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In case of a composite datatype the sending of the whole dataElement shall not be
propagated, if any of the composite elements is out of bounds. c(SRS_Rte_00180)
[SWS_Rte_03840] d If for a dataElement to be sent a SenderComSpec with han-
dleOutOfRange=saturate is provided, a range check shall be implemented in the
sending component. If the value is out of bounds, the value actually sent shall be set
to the lower respectively the upper limit.
In case of a composite datatype each composite element whose actual value is out of
bounds shall be saturated. c(SRS_Rte_00180)
[SWS_Rte_03841] d If for a dataElement to be sent a NonqueuedSenderComSpec
with handleOutOfRange=default is provided, a range check shall be implemented
in the sending component. If the value is out of bounds and the initValue is not
equal to the invalidValue, the value actually sent shall be set to the initValue.
In case of a composite datatype each composite element whose actual value is out of
bounds shall be set to the initValue. c(SRS_Rte_00180)
[SWS_Rte_03842] d If for a dataElement to be sent a NonqueuedSenderComSpec
with handleOutOfRange=invalid is provided, a range check shall be implemented
in the sending component. If the value is out of bounds, the value actually sent shall
be set to the invalidValue.
In case of a composite datatype each composite element whose actual value is out of
bounds shall be set to the invalidValue. c(SRS_Rte_00180)
[SWS_Rte_03843] d If for a dataElement to be sent a QueuedSenderComSpec
with handleOutOfRange set to default or invalid is provided, the RTE generator
shall reject the input as an invalid configuration, since for a QueuedSenderComSpec
the attribute initValue is not defined (see SW-C Template [2]) and data invalidation
is not supported (see [SWS_Rte_06727]). c(SRS_Rte_00180)
Range checks during runtime for inter ECU communication at the senders side are
described in the following requirements:
[SWS_Rte_08027] d The RTE shall implement a range check of sent data in the send-
ing path of a particular signal if the handleOutOfRange is defined at the ISignal-
Props and has any value other than none. In this case only receivers of the specific
ISignal receive the value after the range check was applied. c(SRS_Rte_00180)
[SWS_Rte_08040] d The RTE shall use the limits from the ISignal for the range
check of sent data in the sending path of a particular signal if the handleOutOfRange
is defined at the ISignalProps. c(SRS_Rte_00180)
[SWS_Rte_08030] d If for an ISignal to be sent an ISignalProps with handle-
OutOfRange=ignore is provided, a range check shall be implemented in the sending
signal. If the value is out of bounds, the sending of the ISignal shall not be propa-
gated. In this case the RTE shall behave as if no sending occurred. c(SRS_Rte_00180)
[SWS_Rte_08031] d If for an ISignal to be sent an ISignalProps with handle-
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ing signal. If the value is out of bounds, the value actually sent shall be set to the lower
respectively the upper limit. c(SRS_Rte_00180)
[SWS_Rte_08032] d If for an ISignal to be sent an ISignalProps with han-
dleOutOfRange=default is provided, a range check shall be implemented in the
sending signal. If the value is out of bounds and the initValue is not equal
to the invalidValue, the value actually sent shall be set to the initValue. c
(SRS_Rte_00180)
[SWS_Rte_08033] d If for an ISignal to be sent an ISignalProps with handle-
OutOfRange=invalid is provided, a range check shall be implemented in the send-
ing signal. If the value is out of bounds, the value actually sent shall be set to the
invalidValue. c(SRS_Rte_00180)

Range checks at receivers side

Range checks during runtime for intra ECU communication at the receivers side are
described in the following requirements:
[SWS_Rte_08028] d The RTE shall implement a range check in the receiving path of a
particular component if the handleOutOfRange is defined at the ReceiverComSpec
and has any value other than none. In this case the range check applies only for data
received by the particular component. c(SRS_Rte_00180)
[SWS_Rte_08041] d The RTE shall use the preceding limits ([SWS_Rte_07196]) from
the DataPrototype in the rPort for the range check of received data in the re-
ceiving path of a particular component if the handleOutOfRange is defined at the
ReceiverComSpec. c(SRS_Rte_00180)
[SWS_Rte_03845] d If for a dataElement to be received a ReceiverComSpec with
handleOutOfRange=ignore is provided, a range check shall be implemented in the
receiving component. If the value is out of bounds, the reception of the dataElement
shall not be propagated. This means for a non-queued communication that the last
valid value will be propagated and for a queued communication that no value will be
enqueued.
If the value of the received dataElement is out of bounds and a Nonqueue-
dReceiverComSpec with handleOutOfRangeStatus=indicate is provided, the
return value of the RTE shall be RTE_E_OUT_OF_RANGE.
In case of a composite datatype the reception of the whole dataElement shall not
be propagated, if any of the composite elements is out of bounds. If the handleOut-
OfRangeStatus attribute is set to indicate, the return value of the RTE shall be
RTE_E_OUT_OF_RANGE. c(SRS_Rte_00180)
[SWS_Rte_03846] d If for a dataElement to be received a ReceiverComSpec with
handleOutOfRange=saturate is provided, a range check shall be implemented in
the receiving component. If the value is out of bounds, the value actually received shall
be set to the lower respectively the upper limit.

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If the value of the received dataElement is out of bounds and a Nonqueue-

dReceiverComSpec with handleOutOfRangeStatus=indicate is provided, the
return value of the RTE shall be RTE_E_OUT_OF_RANGE.
In case of a composite datatype each composite element whose actual value is out
of bounds shall be saturated. If the handleOutOfRangeStatus attribute is set to
indicate, the return value of the RTE shall be RTE_E_OUT_OF_RANGE, if any of the
composite elements is out of bounds. c(SRS_Rte_00180)
[SWS_Rte_03847] d If for a dataElement to be received a NonqueuedReceiver-
ComSpec with handleOutOfRange=default is provided, a range check shall be
implemented in the receiving component. If the value is out of bounds and the init-
Value is not equal to the invalidValue, the value actually received shall be set to
the initValue.
If the value of the received dataElement is out of bounds and a Nonqueue-
dReceiverComSpec with handleOutOfRangeStatus=indicate is provided, the
return value of the RTE shall be RTE_E_OUT_OF_RANGE.
In case of a composite datatype each composite element whose actual value is out of
bounds shall be set to the initValue. If the handleOutOfRangeStatus attribute
is set to indicate, the return value of the RTE shall be RTE_E_OUT_OF_RANGE, if
any of the composite elements is out of bounds. c(SRS_Rte_00180)
[SWS_Rte_03848] d If for a dataElement to be received a NonqueuedReceiver-
ComSpec with handleOutOfRange=invalid is provided, a range check shall be im-
plemented in the receiving component. If the value is out of bounds, the value actually
received shall be set to the invalidValue.
If the value of the received dataElement is out of bounds and a ReceiverComSpec
with handleOutOfRangeStatus=indicate is provided, the return value of the RTE
shall be RTE_E_INVALID.
In case of a composite datatype each composite element whose actual value is out
of bounds shall be set to the invalidValue. If the handleOutOfRangeStatus
attribute is set to indicate, the return value of the RTE shall be RTE_E_INVALID, if
any of the composite elements is out of bounds. c(SRS_Rte_00180)
[SWS_Rte_08016] d If for a dataElement to be received a ReceiverComSpec with
handleOutOfRange=externalReplacement is provided, a range check shall be
implemented in the receiving component. If the value is out of bounds, the value actu-
ally received shall be replaced by the value sourced from the ReceiverComSpec.re-
placeWith (e.g. constant, NVRAM parameter).
If the value of the received dataElement is out of bounds and a Nonqueue-
dReceiverComSpec with handleOutOfRangeStatus=indicate is provided, the
return value of the RTE shall be RTE_E_OUT_OF_RANGE.
In case of a composite datatype the value actually received shall be completely re-
placed by the external value, if any of the composite elements is out of bounds. If the

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handleOutOfRangeStatus attribute is set to indicate, the return value of the RTE

shall be RTE_E_OUT_OF_RANGE. c(SRS_Rte_00180)
[SWS_Rte_03849] d If for a dataElement to be received a QueuedReceiver-
ComSpec with handleOutOfRange set to default or invalid is provided, the
RTE generator shall reject the input as an invalid configuration, since for a Queue-
dReceiverComSpec the attribute initValue is not defined (see SW-C Template [2])
and data invalidation is not supported (see [SWS_Rte_06727]). c(SRS_Rte_00180)
[SWS_Rte_08025] d If for a dataElement to be received a QueuedReceiverCom-
Spec is provided and the handleOutOfRangeStatus attribute is set to indicate,
the RTE generator shall reject the input as an invalid configuration. c(SRS_Rte_00180)
Range checks during runtime for inter ECU communication at the receivers side are
described in the following requirements:
[SWS_Rte_08029] d The RTE shall implement a range check in the receiving path of a
particular signal if the handleOutOfRange is defined at the ISignalProps and has
any value other than none. In this case all receivers of the specific ISignal on that
ECU receive the value after the range check was applied. c(SRS_Rte_00180)
[SWS_Rte_08042] d The RTE shall use the limits from the ISignal for the range
check of received data in the receiving path of a particular signal if the handleOut-
OfRange is defined at the ISignalProps. c(SRS_Rte_00180)
[SWS_Rte_08034] d If for an ISignal to be received an ISignalProps with han-
dleOutOfRange=ignore is provided, a range check shall be implemented in the
receiving signal. If the value is out of bounds, the reception of the ISignal shall
not be propagated. In this case the RTE shall behave as if no reception occurred. c
(SRS_Rte_00180)
[SWS_Rte_08035] d If for an ISignal to be received an ISignalProps with han-
dleOutOfRange=saturate is provided, a range check shall be implemented in the
receiving signal. If the value is out of bounds, the value actually received shall be set
to the lower respectively the upper limit. c(SRS_Rte_00180)
[SWS_Rte_08036] d If for an ISignal to be received an ISignalProps with han-
dleOutOfRange=default is provided, a range check shall be implemented in the
receiving signal. If the value is out of bounds and the initValue is not equal to
the invalidValue, the value actually received shall be set to the initValue. c
(SRS_Rte_00180)
[SWS_Rte_08037] d If for an ISignal to be received an ISignalProps with han-
dleOutOfRange=invalid is provided, a range check shall be implemented in the
receiving signal. If the value is out of bounds, the value actually received shall be set
to the invalidValue. c(SRS_Rte_00180)
[SWS_Rte_08038] d If for an ISignal to be received an ISignalProps with han-
dleOutOfRange=externalReplacement is provided, a range check shall be imple-
mented in the receiving signal. If the value is out of bounds, the value actually received

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shall be replaced by the value sourced from the ReceiverComSpec.replaceWith

(e.g. constant, NVRAM parameter). c(SRS_Rte_00180)

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DE producer Configuration RTE status

DE propagation
handleInvalid init != invalid init == invalid
RTE_E_ RTE_E_
keep init value
NEVER_RECEIVED NEVER_RECEIVED
RTE_E_
replace REJECT init value
NEVER_RECEIVED
RTE_E_ RTE_E_
dontInvalidate init value
NEVER_RECEIVED NEVER_RECEIVED
external RTE_E_ RTE_E_ external replacement
Replacement NEVER_RECEIVED NEVER_RECEIVED value
receiver
yes

before yes handle

first reception? NeverReceived?

no

Configuration RTE status

no DE propagation
handleInvalid init != invalid init == invalid
keep RTE_E_OK RTE_E_INVALID init value
replace RTE_E_OK REJECT init value
dontInvalidate RTE_E_OK RTE_E_OK init value
external external replacement
RTE_E_OK RTE_E_OK
Replacement value

Configuration RTE status

DE propagation
handleInvalid init != invalid init == invalid
receiver
keep RTE_E_INVALID RTE_E_INVALID last valid value1
yes replace RTE_E_OK REJECT init value
invalid?
dontInvalidate RTE_E_OK RTE_E_OK value
external external replacement
RTE_E_OK RTE_E_OK
Replacement value
no

RTE status
Configuration
DE propagation
handleOutOfRange handleOutOfRange handleOutOfRange
Status == silent5 Status == indicate4,5

none RTE_E_OK RTE_E_OK value

RTE_E_
ignore RTE_E_OK last valid value2
OUT_OF_RANGE
out of yes
RTE_E_
bounds? saturate RTE_E_OK lower/upper limit
OUT_OF_RANGE

RTE_E_
default4 RTE_E_OK init value3
OUT_OF_RANGE
no
invalid4 RTE_E_INVALID RTE_E_INVALID invalid value

external RTE_E_ external replacement

RTE_E_OK
Replacement5 OUT_OF_RANGE value

1. If no valid value was received previously then the init value shall be propagated
2. In case of queued communication the RTE behaves as if no value was enqueued
3. Init value shall not be equal to invalid value
DE 4. Applicable only in combination with a non-queued COMSPEC
RTE status 5. Applicable only in combination with a receiver COMSPEC
propagation
RTE_E_OK value

Figure 4.48: Overview for data invalidation and range checks

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4.4 Modes
AtpStructureElement AbstractEvent
SwcModeSwitchEvent
ExecutableEntity +startOnEvent AtpStructureElement
RunnableEntity 0..1 RTEEvent + activation :ModeActivationKind

+ canBeInvokedConcurrently :Boolean
+ symbol :CIdentifier 0..*

+runnable

atpVariation,atpSplitable
+modeSwitchPoint * enumeration
ModeActivationKind
AbstractAccessPoint
AtpStructureElement onEntry instanceRef instanceRef
Identifiable onExit
ModeSwitchPoint onTransition
0..*
instanceRef
1..2
+modeGroup 0..1 +disabledMode +mode
0..* {ordered}
AtpPrototype isOfType atpVariation +modeDeclaration AtpStructureElement
ModeDeclarationGroupPrototype 1..* Identifiable
+initialMode ModeDeclaration
+ swCalibrationAccess :SwCalibrationAccessEnum [0..1] 1
{redefines 1 + value :PositiveInteger [0..1]
+type atpType}
+mode
0..* 1..2
+managedModeGroup 0..* 0..* ARElement +disabledInMode {ordered}
+accessedModeGroup
AtpBlueprint
AtpBlueprintable
atpVariation atpVariation AtpType
ModeDeclarationGroup

ExecutableEntity + onTransitionValue :PositiveInteger [0..1]

instanceRef
BswModuleEntity

instanceRef
+startsOnEvent 1

AbstractEvent BswScheduleEvent
BswSchedulableEntity
BswEvent BswModeSwitchEvent

+ activation :ModeActivationKind

Figure 4.49: Summary of the use of ModeDeclarations by an AUTOSAR software-

components and Basic Software Modules as defined in the Software Component Tem-
plate Specification [2] and Specification of BSW Module Description Template [9].

The purpose of modes is to start RunnableEntitys and Basic Software Schedulable

Entities on the transition between modes and to disable (/enable) specified triggers of
RunnableEntitys and Basic Software Schedulable Entities in certain modes. Here,
we use the specification of modes from the Software Component Template Specifica-
tion [2]. Further on the document Specification of BSW Module Description Template
[9] describes how modes are described for Basic Software Modules.
The first subsection 4.4.1 describes how modes can be used by an AUTOSAR
software-component or Basic Software Module mode user. The role of the mode
manager who initiates mode switches is described in section 4.4.2. How ModeDec-
larations are connected to a state machine is described in subsection 4.4.3. The
behaviour of the RTE and Basic Software Scheduler regarding mode switches is de-
tailed in subsection 4.4.4.
One usecase of modes is described in section 4.6.2 for the initialization and finalization
of AUTOSAR software-components. Modes can be used for handling of communica-

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tion states as well as for specific application purposes. The specific definition of modes
and their use is not in the scope of this document.
The status of the modes will be notified to the AUTOSAR software-component mode
user by mode communication - mode switch notifications - as described in
the subsection 4.4.7. The port for receiving (or sending) a mode switch notifi-
cation is called
mode switch port.
A Basic Software Module mode users and the Basic Software Module mode man-
ager are not necessarily using ports. Basic Software Modules without AUTOSAR
Interfaces are connected via the configuration of the Basic Software Scheduler.

4.4.1 Mode User

To use modes, an AUTOSAR software-component (mode user) has to reference a

ModeDeclarationGroup by a ModeDeclarationGroupPrototype of a require
mode switch port, see section 4.4.7. The ModeDeclarationGroup contains the
required modes. Alternatively the mode manager can also contain a ModeAccess-
Point for a provided mode switch port and can combine the roles of mode user
and mode manager for the same ModeDeclarationGroupPrototype.
An Basic Software Module (mode user) has to define a requiredModeGroup Mod-
eDeclarationGroupPrototype.The ModeDeclarationGroup referred by these
ModeDeclarationGroupPrototype contains the required modes. Similar to a
software-component mode user, the Basic Software Module mode manager can
also contain a accessedModeGroup for a providedModeGroup ModeDeclara-
tionGroupPrototype. By this it combines the roles of mode user and mode man-
ager for the same ModeDeclarationGroupPrototype.
The ModeDeclarations can be used in two ways by the mode user (see also figure
4.49):
1. Modes can be used to trigger runnables: The SwcInternalBehavior of
the AUTOSAR SW-C or the BswInternalBehavior of the BSW module
can define a SwcModeSwitchEvent respectively a BswModeSwitchEvent
referencing the required ModeDeclaration. This SwcModeSwitchEvent
or BswModeSwitchEvent can then be used as trigger for a RunnableEn-
tity / BswSchedulableEntity. Both SwcModeSwitchEvent and BswMod-
eSwitchEvent carry an attribute ModeActivationKind which can be exit,
entry, or transition.
A RunnableEntity or BswSchedulableEntity that is triggered by a Swc-
ModeSwitchEvent or a BswModeSwitchEvent with ModeActivationKind
exit is triggered on exiting the mode. For simplicity it will be called
on-exit ExecutableEntity. Correspondingly, an on-transition Ex-
ecutableEntity is triggered by a SwcModeSwitchEvent or a BswMod-

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eSwitchEvent with ModeActivationKind transition and will be executed

during the transition between two modes, and an
on-entry ExecutableEntity is triggered by a SwcModeSwitchEvent or
a BswModeSwitchEvent with ModeActivationKind entry and will be exe-
cuted when the mode is entered.
Since a RunnableEntity as well as a BswSchedulableEntity can be trig-
gered by multiple RTEEvents respectively BswEvents, both can be an on-exit-,
on-transition and on-entry ExecutableEntity at the same time.
RTE does not support a WaitPoint for a SwcModeSwitchEvent (see
[SWS_Rte_01358]).
2. An RTEEvent or BswEvent that starts a ExecutableEntity can contain a
mode disabling dependency.
[SWS_Rte_02503] d If a RunnableEntity r is referenced with startOnEvent
by an RTEEvent e that has a mode disabling dependency on a mode m,
then
RTE shall not activate runnable r on any occurrence of e while the mode m
is active.
c(SRS_Rte_00143, SRS_Rte_00052)
[SWS_Rte_07530] d If a BswSchedulableEntity r is referenced with start-
sOnEvent by an BswEvent e that has a mode disabling dependency on
a mode m, then Basic Software Scheduler shall not activate BswSchedu-
lableEntitys r on any occurrence of e while the mode m is active. c
(SRS_Rte_00213)
Note: As a consequence of [SWS_Rte_02503] and [SWS_Rte_07530] in combi-
nation with [SWS_Rte_02661], RTE or Basic Software Scheduler will not start
runnable or BswSchedulableEntity r on any occurrence of e while the
mode m is active.
The mode disabling is active during the transition to a mode, during the mode
itself and during the transition for exiting the mode. For a precise definition see
section 4.4.4.
The existence of a mode disabling dependency prevents the RTE to
start the mode disabling dependent ExecutableEntity by the disabled
RTEEvent / BswEvent during the mode, referenced by the mode disabling
dependency, and during the transitions from and to that mode. mode dis-
abling dependencys override any activation of a RunnableEntity and
BswSchedulableEntity by the disabled RTEEvents / BswEvents. This is
also true for the SwcModeSwitchEvent and BswModeSwitchEvent.

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A RunnableEntity as well as a BswSchedulableEntity can not be en-

abled explicitly. RunnableEntitys are Basic Software Schedulable Entities are
only enabled by the absence of any active mode disabling dependencys.
Note that mode disabling dependencys do not prevent the wake up from
a WaitPoint by the disabled RTEEvent. This allows the wake-uped
RunnableEntity to run until completion if a transition occurred during the
RunnableEntitys execution.
[SWS_Rte_02504] d The existence of a mode disabling dependency
shall not instruct the RTE to kill a running runnable at a mode switch. c
(SRS_Rte_00143)
[SWS_Rte_07531] d The existence of a mode disabling dependency shall
not instruct the Basic Software Scheduler to kill a running BswSchedulableEn-
tity at a mode switch. c(SRS_Rte_00213)
The RTE and the Basic Software Scheduler can be configured to switch sched-
ule tables to implement mode disabling dependencies for cyclic triggers of
RunnableEntitys or Basic Software Schedulable Entities. Sets of mutual ex-
clusive modes can be mapped to different schedule tables. The RTE shall imple-
ment the switch between schedule tables according to the mapping of modes to
schedule tables in RteModeScheduleTableRef, see [SWS_Rte_05146].
The mode user can specify in the ModeSwitchReceiverComSpec (software compo-
nents) or BswModeReceiverPolicy (BSW modules) that it is able to deal with asyn-
chronous mode switch behavior (supportsAsynchronousModeSwitch == TRUE).
If all mode users connected to the same ModeDeclarationGroupPrototype of
the mode manager support the asynchronous mode switch behavior, the related mode
machine instance can be implemented with the asynchronous mode switching pro-
cedure. Otherwise, the synchronous mode switching procedure has to be applied (see
[SWS_Rte_07150]).

4.4.2 Mode Manager

Entering and leaving modes is initiated by a mode manager. A mode manager might
be a basic software module, for example the Basic Software Mode Manager (BswM),
the communication manager (ComM), or the ECU state manager (EcuM). The mode
manager may also be an AUTOSAR SW-C. In this case, it is called an application
mode manager.
The mode manager contains the master state machine to represent the modes.
To provide modes, an AUTOSAR software-component (mode manager) has to ref-
erence a ModeDeclarationGroup by a ModeDeclarationGroupPrototype of a
provide mode switch port, see section 4.4.7. The ModeDeclarationGroup con-
tains the provided modes.

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An Basic Software Module (mode manager) has to define a providedModeGroup

ModeDeclarationGroupPrototype. The ModeDeclarationGroup referred by
these ModeDeclarationGroupPrototype contains the provided modes.
The RTE / Basic Software Scheduler will take the actions necessary to switch between
the modes. This includes the termination and execution of several ExecutableEntities
from all mode users that are connected to the same ModeDeclarationGroupPrototype
of the mode manager. To do so, the RTE / Basic Software Scheduler needs a state
machine to keep track of the currently active modes and transitions initiated by the
mode manager. The RTEs / Basic Software Scheduler s mode machine is called
mode machine instance. There is exactly one mode machine instance for
each ModeDeclarationGroupPrototype of a mode managers provide mode switch
port respectively providedModeGroup ModeDeclarationGroupPrototype.
It is the responsibility of the mode manager to advance the RTEs / Basic Soft-
ware Scheduler s mode machine instance by sending mode switch notifi-
cations to the mode users. The mode switch notifications are implemented
by a non blocking API (see 5.6.6 / 6.5.7). So, the mode switch notifications
alone provide only a loose coupling between the state machine of the mode man-
ager and the mode machine instance of the RTE / Basic Software Scheduler.
To prevent, that the mode machine instance lags behind and the states of the
mode manager and the RTE / Basic Software Scheduler get out of phase, the mode
manager can use acknowledgment feedback for the mode switch notification.
RTE / Basic Software Scheduler can be configured to send an acknowledgment of the
mode switch notification to the mode manager when the requested transition
is completed.
At the mode manager, the acknowledgment results in an ModeSwitchedAckEvent.
As with DataSendCompletedEvents, this event can be picked up with the polling
or blocking Rte_SwitchAck API. And the event can be used to trigger a Mod-
eSwitchAck ExecutableEntity to pick up the status. Note: The Basic Soft-
ware Scheduler do not support WaitPoints. Therefore the SchM_SwitchAck never
blocks.
Some possible usage patterns for the acknowledgement are:
The most straight forward method is to use a sequence of Rte_Switch and a
blocking Rte_SwitchAck to send the mode switch notification and wait
for the completion. This requires the use of an extended task.
Another possibility is to have a cyclic RunnableEntity / BswSchedula-
bleEntity (maybe the same that switches the modes via Rte_Switch /
SchM_Switch) to poll for the acknowledgement using Rte_SwitchAck /
SchM_SwitchAck.
The acknowledgement can also be polled from a RunnableEntity or
BswSchedulableEntity that is started by the ModeSwitchedAckEvent.
The mode manager can also use the Rte_Mode / SchM_Mode API to read the cur-
rently active mode from the RTEs / Basic Software Scheduler s perspective.

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4.4.3 Refinement of the semantics of ModeDeclarations and Mode-

DeclarationGroups

To implement the logic of mode switches, the RTE / Basic Software Scheduler needs
some basic information about the available modes. For this reason, RTE / Basic Soft-
ware Scheduler will make the following additional assumptions about the modes of one
ModeDeclarationGroup:
1. [SWS_Rte_CONSTR_09013] Exactly one mode or one mode transition shall
be active d Whenever any RunnableEntity or BswSchedulableEntity is
running, there shall always be exactly one mode or one mode transition active of
each ModeDeclarationGroupPrototype. c()
2. Immediately after initialization of a mode machine instance, RTE / Basic
Software Scheduler will execute a transition to the initial mode of each Mod-
eDeclarationGroupPrototype (see [SWS_Rte_02544]).
RTE / Basic Software Scheduler will enforce the mode disablings of the initial
modes and trigger the on-entry ExecutableEntitys (if any defined) of the
initial modes of every ModeDeclarationGroupPrototype immediately after
initialization of the RTE / Basic Software Scheduler.
In other words, RTE / Basic Software Scheduler assumes, that the modes of one
ModeDeclarationGroupPrototype belong to exactly one state machine without
nested states. The state machines cover the whole lifetime of the atomic AUTOSAR
SW-Cs9 and mode dependent AUTOSAR Basic Software Modules 10 .

4.4.4 Order of actions taken by the RTE / Basic Software Scheduler upon inter-
ception of a mode switch notification

This section describes what the communication of a mode switch to a mode user
actually does. What does the RTE Basic Software Scheduler do to switch a mode and
especially in which order.
Mode switch procedures
Depending on the needs of mode users for synchronicity, the mode machine instance
can be implemented with two different realizations.
synchronous mode switching procedure
asynchronous mode switching procedure
The differences between these two realizations are the omitted waiting conditions in
case of asynchronous mode switching procedure. For instance with asynchronous
9
The lifetime of an atomic AUTOSAR SW-C is considered to be the time span in which the SW-Cs
runnables are being executed.
10
The lifetime of an mode dependent AUTOSAR Basic Software Module is considered to be the time
span in which the Basic Software Schedulable Entities are being executed.

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behavior a software component can not rely that all mode disabling dependent
ExecutableEntitys of the previous mode are terminated before on-entry Exe-
cutableEntitys and on-exit ExecutableEntitys are started. On one hand
this might put some effort to the software component designer to enable the compo-
nents implementation to support this kind of scheduling but on the other hand it enables
fast and lean mode switching.
[SWS_Rte_07150] d The RTE generator shall use the synchronous mode switching
procedure if at least one mode user of the mode machine instance does not sup-
port the asynchronous mode switch behavior. c(SRS_Rte_00143, SRS_Rte_00213)
[SWS_Rte_07151] d The RTE generator shall apply the asynchronous mode switch
behavior, if all mode users support the asynchronous mode switch behavior and
if it is configured for the related mode machine instance. c(SRS_Rte_00143,
SRS_Rte_00213)
Typical usage of modes to protect resources
RTE / Basic Software Scheduler can start and prevent the execution of RunnableEn-
titys and BswSchedulableEntity. In the context of mode switches,
RTE / Basic Software Scheduler starts on-exit ExecutableEntitys for
leaving the previous mode. This is typically used by clean up ExecutableEn-
titys to free resources that were used during the previous mode.
RTE / Basic Software Scheduler starts on-entry ExecutableEntitys for
entering the next mode. This is typically used by initialization ExecutableEn-
titys to allocate resources that are used in the next mode.
And RTE / Basic Software Scheduler can prevent the execution of mode dis-
abling dependent ExecutableEntitys within a mode. This is typically
used with time triggered work ExecutableEntity that use a resource which is
not available in a certain mode.
According to this use case, during the execution of clean up ExecutableEntitys
and initialization ExecutableEntitys the work ExecutableEntitys should be
disabled to protect the resource. Also, if the same resource is used (by different SW-
Cs) in two successive modes, the clean up ExecutableEntitys should be safely
terminated before the initialization ExecutableEntitys of the next mode are exe-
cuted (synchronous mode switching procedure). In summary, this would lead to the
following sequence of actions by the RTE / Basic Software Scheduler upon reception
of the mode switch notification:
1. activate mode disablings for the next mode
2. wait for the newly disabled ExecutableEntitys to terminate in case of syn-
chronous mode switching procedure
3. execute clean up ExecutableEntitys
4. wait for the clean up ExecutableEntitys to terminate in case of synchronous
mode switching procedure

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5. execute initialization ExecutableEntitys

6. wait for the initialization ExecutableEntitys to terminate in case of syn-
chronous mode switching procedure
7. deactivate mode disablings for the previous modes and enable Exe-
cutableEntitys that have been disabled in the previous mode.
RTE / Basic Software Scheduler can also start on-transition ExecutableEn-
titys on a transition between two modes which is not shown in this use case exam-
ple.
Often, only a fraction of the SW-Cs, Runnable Entities, Basic Software modules and
Basic Software Schedulable Entities of one ECU depends on the modes that are
switched. Consequently, it should be possible to design the system in a way, that
the mode switch does not influence the performance of the remaining software.

Figure 4.50: This figure shall illustrate what kind of ExecutableEntities will run in what or-
der during a synchronous mode transition. The boxes indicate activated ExecutableEn-
tities. Mode disabling dependant ExecutableEntities are printed in blue (old mode) and
pink (new mode). on-exit, on-transition, and on-entry ExecutableEntity are printed in
red, yellow, and green.

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Figure 4.51: This figure shall illustrate what kind of ExecutableEntity will run in what
order during an asynchronous mode transition where the ExecutableEntities are trig-
gered on a mode change are mapped to a higher priority task than the Mode Dependent
ExecutableEntity. The boxes indicate activated ExecutableEntity. Mode disabling de-
pendant ExecutableEntity are printed in blue (old mode) and pink (new mode). on-exit,
on-transition, and on-entry ExecutableEntity are printed in red, yellow, and green.

The remainder of this section lists the requirements that guarantee the behavior de-
scribed above.
All runnables with dependencies on modes have to be executed or terminated during
mode transitions. Restriction [SWS_Rte_02500] requires these runnables to be of
category 1 to guarantee finite execution time.
For simplicity of the implementation to guarantee the order of runnable executions, the
following restriction is made:
All on-entry ExecutableEntitys, on-transition ExecutableEntitys,
and on-exit ExecutableEntitys of the same mode machine instance
should be mapped to the same task in the execution order following on-exit,
on-transition, on-entry (see [SWS_Rte_02662]).
A mode machine instance implementing an asynchronous mode switch proce-
dure might be fully implemented inside the Rte_Switch or SchM_Switch API. In
this case the on-entry ExecutableEntitys, on-transition ExecutableEn-
titys, on-exit ExecutableEntitys and ModeSwitchAck ExecutableEn-
titys are not mapped to tasks as described in chapter 7.5.1.
[SWS_Rte_07173] d The RTE generator shall support invocation of on-entry
ExecutableEntitys, on-transition ExecutableEntitys, on-exit Exe-
cutableEntitys and ModeSwitchAck ExecutableEntitys via direct function
call, if all following conditions are fulfilled:
if the asynchronous mode switch behavior is configured (see [SWS_Rte_07151])

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the on-entry ExecutableEntitys, on-transition ExecutableEn-

titys, on-exit ExecutableEntitys and ModeSwitchAck Exe-
cutableEntitys do not define a minimum start distance
the mode manager and mode user are in the same Partition
if the preconditions of [constr_4086] are fulfilled
c(SRS_Rte_00143, SRS_Rte_00213)
Further on the requirements [SWS_Rte_05083], [SWS_Rte_07155] and
[SWS_Rte_07157] has to be considered.
[SWS_Rte_02667] d Within the mode managers Rte_Switch / SchM_Switch API
call to indicate a mode switch, one of the following shall be done:
1. If the corresponding mode machine instance is in a transition, and the queue
for mode switch notifications is full, Rte_Switch / SchM_Switch shall
return an error immediately.
2. If the corresponding mode machine instance is in a transition, and the queue
for mode switch notifications is not full, the mode switch notifica-
tion shall be queued.
3. If the mode machine instance is not in a transition, Rte_Switch /
SchM_Switch shall initiate the transition as described by the sequence
in [SWS_Rte_02665] which in turn activates the mode disablings (see
[SWS_Rte_02661]) of the next mode.
c(SRS_Rte_00143, SRS_Rte_00213)
The following list holds the requirements for the steps of a mode transition.
[SWS_Rte_02661] d At the beginning of a transition of a mode machine
instance, the RTE / Basic Software Scheduler shall activate the mode
disablings of the next mode (see also [SWS_Rte_02503]), if any mode
disabling dependencys for that mode are defined. c(SRS_Rte_00143,
SRS_Rte_00213)
[SWS_Rte_07152] d If any mode disabling dependencys for the next mode
are defined (as specified by [SWS_Rte_02661]), the RTE / Basic Software
Scheduler shall wait until the newly disabled RunnableEntitys and Basic Soft-
ware Schedulable Entities are terminated, in case of synchronous mode switch-
ing procedure. c(SRS_Rte_00143, SRS_Rte_00213)
Note: To guarantee in case of synchronous mode switching all activated
mode disabling dependent ExecutableEntitys of this core local
mode user group have terminated before the start of the on-exit Exe-
cutableEntitys of the transition, RTE generator can exploit the restriction
[SWS_Rte_02663] that mode disabling dependent ExecutableEntitys
run with higher or equal priority than the on-exit ExecutableEntitys and
the on-entry ExecutableEntitys.

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[SWS_Rte_02562] d RTE / Basic Software Scheduler shall execute the

on-exit ExecutableEntitys of the previous mode. c(SRS_Rte_00143,
SRS_Rte_00052, SRS_Rte_00213)
[SWS_Rte_07153] d If any on-exit ExecutableEntity is configured
the RTE / Basic Software Scheduler shall wait after its execution
( [SWS_Rte_02562]) until all on-exit ExecutableEntitys are terminated
in case of synchronous mode switching procedure. c(SRS_Rte_00143,
SRS_Rte_00213)
[SWS_Rte_02707] d RTE / Basic Software Scheduler shall execute the on-
transition ExecutableEntitys configured for the transition from previous
mode to next mode. c(SRS_Rte_00143, SRS_Rte_00052, SRS_Rte_00213)
[SWS_Rte_02708] d If any on-transition ExecutableEntity is con-
figured, the RTE / Basic Software Scheduler shall wait after its execution
([SWS_Rte_02707]) until all on-transition ExecutableEntitys are termi-
nated in case of synchronous mode switching procedure. c(SRS_Rte_00143,
SRS_Rte_00213)
[SWS_Rte_02564] d RTE / Basic Software Scheduler shall execute the
on-entry ExecutableEntitys of the next mode. c(SRS_Rte_00143,
SRS_Rte_00052, SRS_Rte_00213)
[SWS_Rte_07154] d If any on-entry ExecutableEntity is configured the
RTE shall wait after its execution ([SWS_Rte_02564]) until all on-entry Exe-
cutableEntitys are terminated in case of synchronous mode switching pro-
cedure. c(SRS_Rte_00143, SRS_Rte_00213)
[SWS_Rte_02563] d The RTE / Basic Software Scheduler shall deactivate the
previous mode disablings and only keep the mode disablings of the next
mode. c(SRS_Rte_00143, SRS_Rte_00213)
With this, the transition is completed.
[SWS_Rte_02587] d At the end of the transition, RTE / Basic Software Scheduler
shall trigger the ModeSwitchedAckEvents connected to the mode managers
ModeDeclarationGroupPrototype. c(SRS_Rte_00143, SRS_Rte_00213)
This will result in an acknowledgment on the mode managers side which allows
the mode manager to wait for the completion of the mode switch.
The dequeuing of the mode switch notification shall also be done at the end of
the transition, see [SWS_Rte_02721].
[SWS_Rte_02665] d During a transition of a mode machine instance each appli-
cable of the steps
1. [SWS_Rte_02661] (The transition is entered in parallel with this step),
2. [SWS_Rte_07152],

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3. [SWS_Rte_02562],
4. [SWS_Rte_07153],
5. [SWS_Rte_02707],
6. [SWS_Rte_02708],
7. [SWS_Rte_02564],
8. [SWS_Rte_07154],
9. [SWS_Rte_02563] (The transition is completed with this step), and
10. immediately followed by [SWS_Rte_02587]
shall be executed in the order as listed for a core local mode user group. If a step is
not applicable, the order of the remaining steps shall be unchanged.
If mode users are belonging to different core local mode user group the steps 1. - 9.
may be executed in parallel on the different cores. The step 10. is executed if the
step 1. - 9. is finished for the whole mode machine instance. c(SRS_Rte_00143,
SRS_Rte_00213)
In the case that mode users belonging to the same mode machine instance are
mapped to different partitions which in turn are scheduled on different micro controller
cores the sequence described in [SWS_Rte_02665] can be parallelized.
[SWS_Rte_02668] d Immediately after the execution of a transition as described
in [SWS_Rte_02665], RTE / Basic Software Scheduler shall check the queue for
pending mode switch notifications of this mode machine instance. If a
mode switch notification can be dequeued, the mode machine instance
shall enter the corresponding transition directly as described by the sequence in
[SWS_Rte_02665]. c(SRS_Rte_00143, SRS_Rte_00213)
In the case of a fast sequence of two mode switches, the Rte_Mode or SchM_Mode
API will not indicate an intermediate mode, if a mode switch notification to the
next mode is indicated before the transition to the intermediate mode is completed.
[SWS_Rte_02630] d In case of synchronous mode switch procedure, the RTE shall ex-
ecute all steps of a mode switch (see [SWS_Rte_02665]) synchronously for the whole
mode machine instance. c(SRS_Rte_00143, SRS_Rte_00213)
I.e., the mode transitions will be executed synchronously for all mode users that are
connected to the same mode managers ModeDeclarationGroupPrototype.
[SWS_Rte_02669] d If the next mode and the previous mode of a transition are the
same, the transition shall still be executed. c(SRS_Rte_00143, SRS_Rte_00213)

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4.4.5 Assignment of mode machine instances to RTE and Basic Software

Scheduler

[SWS_Rte_07533] d A mode machine instance shall be assigned to the RTE

if the correlating ModeDeclarationGroupPrototype is instantiated in a port of
a software-component and if the ModeDeclarationGroupPrototype is not syn-
chronized (synchronizedModeGroup of a SwcBswMapping) with a providedMode-
Group ModeDeclarationGroupPrototype of a Basic Software Module instance. c
(SRS_Rte_00143)
[SWS_Rte_07534] d A mode machine instance shall be assigned to the Basic
Software Scheduler if the correlating ModeDeclarationGroupPrototype is a pro-
videdModeGroup ModeDeclarationGroupPrototype of a Basic Software Mod-
ule instance. c(SRS_Rte_00213)
[SWS_Rte_07535] d The RTE Generator shall create only one mode machine in-
stance if a ModeDeclarationGroupPrototype instantiated in a port of a software-
component is synchronized (synchronizedModeGroup of a SwcBswMapping) with a
providedModeGroup ModeDeclarationGroupPrototype of a Basic Software
Module instance. The related common mode machine instance shall be as-
signed to the Basic Software Scheduler. c(SRS_Rte_00143, SRS_Rte_00213,
SRS_Rte_00214)
In case of synchronized ModeDeclarationGroupPrototypes the correlating com-
mon mode machine instance is initialized during the execution of the SchM_Init.
At this point of time the scheduling of RunnableEntitys is not enabled due to the
uninitialized RTE. Therefore situation occurs, that the RunnableEntitys being on-
entry ExecutableEntitys are not called if the mode machine instance is ini-
tialized. Further on the current mode of such mode machine instance might be
still switched until the RTE gets initialized. Nevertheless the on-entry Runnables of the
current active mode are executed.
[SWS_Rte_07582] d For common mode machine instances the on-entry Runn-
able Entities of the current active mode are executed during the initialization of the RTE
if the common mode machine instance is not in transition. c(SRS_Rte_00214)
[SWS_Rte_07583] d A common mode machine instances is not allowed to en-
ter transition phase during the RTE initialization if the common mode machine in-
stances has on-entry Runnable Entities, on-transition Runnable Entities or on-exit
Runnable Entities c(SRS_Rte_00214)
Note: [SWS_Rte_07582] and [SWS_Rte_07583] shall ensure a deterministic behavior
that the software components receiving a Mode Switch Request from a common mode
machine instances are receiving the current active mode during RTE initialization.
[SWS_Rte_07564] d The RTE generator shall reject configurations where Mod-
eSwitchPoint(s) referencing a ModeDeclarationGroupPrototype in a mode
switch port and a managedModeGroup association(s) to a providedMode-
Group ModeDeclarationGroupPrototype are not defined mutual exclusively to

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one of two synchronized ModeDeclarationGroupPrototypes. c(SRS_Rte_00143,

SRS_Rte_00213, SRS_Rte_00214, SRS_Rte_00018)
[SWS_Rte_CONSTR_09014] ModeSwitchPoint(s) and managedModeGroup(s)
are mutually exclusive for synchronized ModeDeclarationGroupPrototypes d
Only one of two synchronized ModeDeclarationGroupPrototypes shall mutual exclu-
sively be referenced by ModeSwitchPoint(s) or managedModeGroup association(s). c
()
Note: [SWS_Rte_CONSTR_09014] shall ensure in the combination with the exis-
tence conditions of the Rte_Switch, Rte_Mode, Rte_SwitchAck, SchM_Switch,
SchM_Mode and SchM_SwitchAck that either the port based RTE API or the Ba-
sic Software Scheduler API ([SWS_Rte_07201] and [SWS_Rte_07264]) offered to the
implementation of the mode manager.

4.4.6 Initialization of mode machine instances

A mode machine instance can either be initialized during Rte_Start or during

Rte_Init. The initialization during Rte_Init enables a defined order when which
mode machine instance gets initialized and the belonging on-entry Runnable En-
tities are scheduled.
[SWS_Rte_06766] d RTE shall initiate the transition to the initial modes of each mode
machine instance belonging to the RTE during Rte_Start if the on-entry Runn-
able Entities for the initialMode are not mapped to any RteInitialization-
RunnableBatch container. c(SRS_Rte_00143, SRS_Rte_00144, SRS_Rte_00116)
[SWS_Rte_06767] d RTE shall initiate the transition to the initial modes of each mode
machine instance belonging to the RTE during Rte_Init if the on-entry Runnable
Entities for the initialMode are mapped to one or several RteInitialization-
RunnableBatch container. c(SRS_Rte_00143, SRS_Rte_00144, SRS_Rte_00116,
SRS_Rte_00240)
Please note the restrictions on the mapping to RteInitializationRunnable-
Batch containers [SWS_Rte_CONSTR_09062], [SWS_Rte_CONSTR_09063] and
[SWS_Rte_CONSTR_09064].
[SWS_Rte_02544] d During the transition to the initial modes of mode machine in-
stances belonging to the RTE, the steps defined in the following requirements have
to be omitted as no previous mode is defined:
[SWS_Rte_02562],
[SWS_Rte_07153],
[SWS_Rte_02707],
[SWS_Rte_02708],
[SWS_Rte_02563],

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[SWS_Rte_02587]
If applicable, the steps described by the following requirements still have to be executed
for entering the initial mode:
[SWS_Rte_02661],
[SWS_Rte_02564]
c(SRS_Rte_00143, SRS_Rte_00144, SRS_Rte_00116)
[SWS_Rte_07532] d Basic Software Scheduler shall initiate the transition to the initial
modes of each mode machine instance belonging to the Basic Software Sched-
uler during SchM_Init. During the transition to the initial modes, the steps defined in
the following requirements have to be omitted as no previous mode is defined:
[SWS_Rte_02562],
[SWS_Rte_07153],
[SWS_Rte_02707],
[SWS_Rte_02708],
[SWS_Rte_02563],
[SWS_Rte_02587]
If applicable, the steps described by the following requirements still have to be executed
for entering the initial mode:
[SWS_Rte_02661],
[SWS_Rte_02564]
c(SRS_Rte_00213)

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4.4.7 Notification of mode switches

ARElement
AtpBlueprintable
AtpBlueprint +component +port
AtpPrototype
AtpBlueprintable
AtpType atpVariation,atpSplitable 0..* PortPrototype
SwComponentType
atpVariation Tags:
vh.latestBindingTime =
preCompileTime

AbstractRequiredPortPrototype AbstractProvidedPortPrototype

AtomicSwComponentType

RPortPrototype PRPortPrototype PPortPrototype

+rPort * +pPort *
isOfType isOfType isOfType

+requiredInterface +providedRequiredInterface +providedInterface

ARElement
AtpBlueprint
AtpBlueprintable
AtpType
PortInterface

+ isService :Boolean
ARElement
+ serviceKind :ServiceProviderEnum [0..1]
AtpStructureElement
SwcBswMapping

ModeSwitchInterface

atpVariation 1
+synchronizedModeGroup 0..* +modeGroup 1
AtpPrototype
SwcBswSynchronizedModeGroupPrototype +bswModeGroup
ModeDeclarationGroupPrototype
1
+swcModeGroup + swCalibrationAccess :SwCalibrationAccessEnum [0..1]

instanceRef 1

ARElement +providedModeGroup
AtpBlueprint
AtpBlueprintable atpVariation,atpSplitable 0..*
AtpStructureElement
BswModuleDescription +requiredModeGroup
+ moduleId :PositiveInteger [0..1] atpVariation,atpSplitable 0..*

atpVariation Tags: isOfType

1
vh.latestBindingTime = preCompileTime {redefines
+type atpType}
ARElement
AtpBlueprint
AtpBlueprintable
AtpType
ModeDeclarationGroup

+ onTransitionValue :PositiveInteger [0..1]

atpVariation
+modeDeclaration 1..* +initialMode 1

AtpStructureElement
Identifiable
ModeDeclaration

+ value :PositiveInteger [0..1]

Figure 4.52: Definition of a ModeSwitchInterface.

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[SWS_Rte_02549] d Mode switches shall be communicated via RTE by Mod-

eDeclarationGroupPrototypes of a ModeSwitchInterface as defined in
[2], see Fig. 4.52. c(SRS_Rte_00144)
The mode switch ports of the mode manager and the mode user are of
the type of a ModeSwitchInterface.
[SWS_Rte_07538] d Mode switches shall be communicated via Basic Software
Scheduler via providedModeGroup and requiredModeGroup ModeDecla-
rationGroupPrototypes as defined in [9], see Fig. 4.52. Which ModeDeclara-
tionGroupPrototypes are connected to each other is defined by the configuration
of the Basic Software Scheduler. c(SRS_Rte_00213)
RTE / Basic Software Scheduler only requires the notification of switches be-
tween modes.
AUTOSAR does not support inter ECU communication of mode switch notifica-
tions.
For the distributed mode management mode requests can be distributed via Ser-
viceProxySwComponentTypes and the BswM of each target ECU to the mode
users of the BswMs.
[SWS_Rte_02508] d A mode switch shall be notified asynchronously as indicated
by the use of a ModeSwitchInterface. c(SRS_Rte_00144)
Rationale: This simplifies the communication. Due to [SWS_Rte_08788] the
communication is ECU local and no handshake is required to guarantee reliable
transmission.
RTE offers the Rte_Switch API to the mode manager for this notification, see
5.6.6.
Basic Software Scheduler offers the SchM_Switch API to the mode manager
for this notification, see 6.5.7.
The mode manager might still require a feedback to keep its internal state
machine synchronized with the RTE / Basic Software Scheduler view of active
modes.
The RTE generator shall support an AcknowledgementRequest from the mode
switch port / providedModeGroup ModeDeclarationGroupPrototype
of a mode manager, see [SWS_Rte_02587], to notify the mode manager of the
completion of a mode switch.
[SWS_Rte_02566] d A ModeSwitchInterface shall support 1:n communica-
tion. c(SRS_Rte_00144)
Rationale: This simplifies the configuration and the communication. One mode
switch can be notified to all receivers simultaneously.

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A ModeSwitchInterface does not support n:1 communication, see

[SWS_Rte_02670].
[SWS_Rte_07539] d The connection of providedModeGroup and required-
ModeGroup ModeDeclarationGroupPrototype shall support 1:n communi-
cation. c(SRS_Rte_00213)
[SWS_Rte_02624] d A mode switch shall be notified with event seman-
tics, i.e., the mode switch notifications shall be buffered by RTE or Basic
Software Scheduler to which the mode machine instance is assigned. c
(SRS_Rte_00144)
The queueing of mode switches (and SwcModeSwitchEvents) depends like
that of DataReceivedEvents on the settings for the receiving port, see sec-
tion 4.3.1.10.2.
[SWS_Rte_02567] d A ModeSwitchInterface shall only indicate the next
mode of the transition. c(SRS_Rte_00144)
[SWS_Rte_07541] d A providedModeGroup ModeDeclarationGroupPro-
totype shall only indicate the next mode of the transition. c(SRS_Rte_00213)
The API takes a single parameter (plus, optionally, the instance handle) that in-
dicates the requested next mode. For this purpose, RTE and Basic Software
Scheduler will use identifiers of the modes as defined in [SWS_Rte_02568] and
[SWS_Rte_07294].
[SWS_Rte_02546] d The RTE shall keep track of the active modes
of a mode managers ModeDeclarationGroupPrototypes (mode ma-
chine instances) which is assigned to the RTE. c(SRS_Rte_00143,
SRS_Rte_00144)
[SWS_Rte_07540] d The Basic Software Scheduler shall keep track of the active
modes of a mode managers ModeDeclarationGroupPrototypes (mode
machine instances) which is assigned to the Basic Software Scheduler. c
(SRS_Rte_00213, SRS_Rte_00144)
Rationale: This allows the RTE / Basic Software Scheduler to guarantee con-
sistency between the timing for firing of SwcModeSwitchEvents / BswMod-
eSwitchEvents and disabling the start of ExecutableEntities by mode dis-
abling dependency without adding additional interfaces to a mode manager
with fine grained substates on the transitions.
The RTE offers an Rte_Mode API to the SW-C to get information about the active
mode, see section 5.6.30.
The Basic Software Scheduler offers an SchM_Mode API to the Basic Software
Module to get information about the active mode, see section 6.5.8.
In addition to the mode switch ports, the mode manager may offer an AU-
TOSAR interface for requesting and releasing modes as a means to keep modes
alive like for ComM and EcuM.

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4.4.8 Mode switch acknowledgment

In case of mode switch communication, the mode manager may specify a Mod-
eSwitchedAckEvent or BswModeSwitchedAckEvent to receive a notification from
the RTE that the mode transition has been completed, see [SWS_Rte_02679] and
[SWS_Rte_07559].
The ModeSwitchedAckEvent is triggered by the RTE regardless which runnable en-
tity has requested the mode switch notification, even if the meta model implies a link to
a specific ModeSwitchPoint.
[SWS_Rte_02679] d If acknowledgment is enabled for a provided Mod-
eDeclarationGroupPrototype and a ModeSwitchedAckEvent references a
RunnableEntity as well as the ModeDeclarationGroupPrototype, the
RunnableEntity shall be activated when the mode switch acknowledgment occurs
or when the RTE detects that any partition to which the mode users are mapped was
stopped or restarted or when a timeout was detected by the RTE. c(SRS_Rte_00051,
SRS_Rte_00143)
The related Entry Point Prototype is defined in [SWS_Rte_02512].
[SWS_Rte_07559] d If acknowledgment is enabled for a provided (providedMode-
Group) ModeDeclarationGroupPrototype and a BswModeSwitchedAckEvent
references a BswSchedulableEntity as well as the ModeDeclarationGroup-
Prototype, the BswSchedulableEntity shall be activated when the mode switch
acknowledgment occurs or when a timeout was detected by the Basic Software Sched-
uler. [SWS_Rte_02587]. c(SRS_Rte_00213, SRS_Rte_00143)
The related Entry Point Prototype is defined in [SWS_Rte_04542].
Requirement [SWS_Rte_02679] and [SWS_Rte_07559] merely affects when the runn-
able is activated. The Rte_SwitchAck and SchM_SwitchAck shall still be created,
according to requirement [SWS_Rte_02678] and [SWS_Rte_07558] to actually read
the acknowledgment.
[SWS_Rte_02730] d A ModeSwitchedAckEvent that references a RunnableEn-
tity and is referenced by a WaitPoint shall be an invalid configuration which is re-
jected by the RTE generator. c(SRS_Rte_00051, SRS_Rte_00018, SRS_Rte_00143)
The attributes ModeSwitchedAckRequest and BswModeSwitchAckRequest allow
to specify a timeout.
[SWS_Rte_07056] d If ModeSwitchedAckRequest or BswModeSwitchAckRe-
quest with a timeout greater than zero is specified, the RTE shall ensure that timeout
monitoring is performed, regardless of the receive mode of the acknowledgment. c
(SRS_Rte_00069, SRS_Rte_00143)
[SWS_Rte_07060] d Regardless of an occurred timeout during a mode transition
the RTE shall complete the transition of a mode machine instance as defined in
[SWS_Rte_02665]. c(SRS_Rte_00069, SRS_Rte_00143)

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If a WaitPoint is specified to collect the acknowledgment, two timeout values have to

be specified, one for the ModeSwitchedAckRequest and one for the WaitPoint.
[SWS_Rte_07057] d The RTE generator shall reject configuration violating [con-
str_4012] in software component template [2]. c(SRS_Rte_00018, SRS_Rte_00143)
[SWS_Rte_07058] d The status information about the success or failure of the mode
transition shall be buffered with last-is-best semantics. When a new mode switch
notification is sent or when the mode switch notification was completed after a
timeout, the status information is overwritten. c(SRS_Rte_00143)
[SWS_Rte_07058] implies that once the ModeSwitchedAckEvent or BswMod-
eSwitchedAckEvent has occurred, repeated API calls (Rte_SwitchAck or
SchM_SwitchAck to retrieve the acknowledgment can return different values.
[SWS_Rte_07059] d If the timeout value of the ModeSwitchedAckRequest or
BswModeSwitchAckRequest is 0, no timeout monitoring shall be performed. c
(SRS_Rte_00069, SRS_Rte_00143)

4.4.9 Mode switch error handling

Since the mode switch communication may cross partitions basically two error scenar-
ios are possible:
The partition of the mode users gets terminated.
The partition of the mode manager gets terminated.
In both cases additionally the terminated partition may be restarted. For both error
scenarios the RTE offers functionality to handle the errors.

4.4.9.1 Mode User gets terminated

When a mode manager is getting out of sync with the mode user(s) (because the
partition of the mode user has been terminated) a sequence of error reactions is
defined.
This shall support on the one hand to inform the mode manager about the fact that
the mode users are absent. This might be used by the mode manager to set internal
states. This supports an active error handling by the mode manager as well as a
synchronization of the mode manager to the mode users partition restart.
Furthermore the RTE offers the ability to switch into a default mode automatically. This
feature can be used to ensure that either the mode users are re-initialized as during
ECU start (default mode is initial mode) or that the mode users are re-initialized by
a dedicated mode (default mode is different from initial mode) which in turn may be
used to ensure a secure behavior of the mode users, for instance suppressing the
actuator self tests in the running system.

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Please note that the application of a default mode during mode user partition restart for
modes communicated cross partitions cannot be applied since this would disturb the
execution of the fault free partitions. For this scenario the only applicable error reaction
is modeManagerErrorBehavior.errorReactionPolicy set to lastMode. Other
configurations are rejected, see [SWS_Rte_08788].
[SWS_Rte_06794] d The RTE Generator shall take the modeManagerErrorBehav-
ior from the ModeDeclarationGroup typing the ModeDeclarationGroupPro-
totype in the ModeSwitchInterface of the PPortPrototype/PRPortProto-
type. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06772] d The RTE shall clear all mode switch notifications in the
queue when all partitions of the mode userss are terminated. c(SRS_Rte_00143,
SRS_Rte_00144)
[SWS_Rte_06773] d The RTE shall activate RunnableEntitys triggered by a Swc-
ModeManagerErrorEvent when all partitions of the mode userss are terminated.
c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06774] d If ModeSwitchedAckRequest or BswModeSwitchAckRe-
quest is specified, the RTE shall detect a timeout when mode users partitions are
terminated during an ongoing transition. c(SRS_Rte_00143, SRS_Rte_00144)
Also see [SWS_Rte_02679], [SWS_Rte_07559], and [SWS_Rte_03853].
The further behavior of the mode machine instance depends on the attribute
ModeDeclarationGroup.modeUserErrorBehavior.
[SWS_Rte_06775] d If the attribute modeManagerErrorBehavior.errorReac-
tionPolicy is set to lastMode the mode machine instance stays in the last
mode before the termination of the mode users. If the partition of the mode users
gets terminated during an ongoing transition the last mode is the next mode of the
transition. c(SRS_Rte_00143, SRS_Rte_00144)
Please note: In case the partition of the mode users gets terminated during an on-
going transition logically the transition is still completed even if the mode users didnt
"survive" the transition.
[SWS_Rte_06776] d If the attribute modeManagerErrorBehavior.errorReac-
tionPolicy is set to defaultMode the RTE shall enqueue the mode defined
by modeManagerErrorBehavior.defaultMode to the mode switch notifi-
cation queue. c(SRS_Rte_00143, SRS_Rte_00144)
If the ModeSwitchInterface does not define a specific modeManagerErrorBe-
havior the RTE uses the initialMode as a default mode.
[SWS_Rte_06777] d If the attribute modeManagerErrorBehavior is not defined the
RTE shall enqueue the mode defined by initialMode to the mode switch noti-
fication queue. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06778] d The RTE shall execute the error reactions in case the partition of
the mode users gets terminated in following order:

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1. [SWS_Rte_06772]
2. [SWS_Rte_06773]
3. [SWS_Rte_06774]
4. [SWS_Rte_06775] or [SWS_Rte_06776] or [SWS_Rte_06777]
c(SRS_Rte_00143, SRS_Rte_00144)
If the partition of the mode users is capable to restart (PartitionCanBeRestarted
== true) the mode manager shall be able to enqueue new mode switch requests
during the restart of the partition. This shall support a dedicated error handling by the
mode manager depending on other environmental conditions. In this case the mode
manager may decide which transitions are appropriate to get the mode users either
back in an operational mode or in a secure default mode. Therefore the errorReac-
tionPolicy equals lastMode avoids any automatically forced mode transitions by
the error handling of the RTE.
[SWS_Rte_06779] d RTE shall support the enqueueing of new mode switch requests
during the restart of the mode users partition by the mode manager after the call of
Rte_PartitionRestarting. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06780] d When the partition with the mode users is restarted (after call of
Rte_PartitionRestart), RTE shall dequeue queued mode switch notifica-
tions. c(SRS_Rte_00143, SRS_Rte_00144)
When the first mode switch notification after a partition restart is dequeued
the previous mode is defined as "last mode" or "on transition" depending on the
modeManagerErrorBehavior.errorReactionPolicy. See [SWS_Rte_06783]
and [SWS_Rte_06784].
Initialization of mode machine instance during mode users partition restart
Depending on the modeManagerErrorBehavior the RTE has to re-initialize the
mode machine instance during the restart of the mode users partition. In
case modeManagerErrorBehavior.errorReactionPolicy is set to default-
Mode the behavior is similar as during the transition to the initial mode (see
[SWS_Rte_02544]). During the initialization of the RTE resources for a restarting mode
user partition only a subset of the single steps of a mode transition is applicable.
[SWS_Rte_06796] d During the transition to the default mode (next mode is default
mode) of mode machine instances when the mode users partition restarts, the
steps defined in the following requirements have to be omitted as no previous mode is
applicable:
[SWS_Rte_02562],
[SWS_Rte_07153],
[SWS_Rte_02707],
[SWS_Rte_02708],

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[SWS_Rte_02563],
[SWS_Rte_02587]
If applicable, the steps described by the following requirements still have to be executed
for entering the default mode:
[SWS_Rte_02661],
[SWS_Rte_02564]
c(SRS_Rte_00143, SRS_Rte_00144)
In case modeManagerErrorBehavior.errorReactionPolicy is set to last-
Mode the behavior indicates a stable mode during the re-initialization in order to provide
the means to the mode manager to explicitly decide on the appropriate mode to han-
dle the fault.
[SWS_Rte_06797] d If the attribute modeManagerErrorBehavior.errorReac-
tionPolicy is set to lastMode the RTE / Basic Software Scheduler shall ac-
tivate the mode disablings of the last mode during the partition restart, if any
mode disabling dependencys for that mode are defined. c(SRS_Rte_00143,
SRS_Rte_00144)

4.4.9.2 Mode Manager gets terminated

When a mode user gets out of sync with the mode manager (because the partition
of the mode manager has been terminated) a sequence of error reactions is defined.
Hereby the RTE offers the ability to automatically switch into a default mode. This
feature can be used to ensure that the mode users are automatically switched into
a defined mode which in turn may be used to ensure a secure behavior of the mode
users, for instance switching off some actuators.
As an alternative the mode machine instance can stay in the last mode which can
be used to keep the "status quo" until the mode manager is restarted.
[SWS_Rte_06795] d The RTE Generator shall take the modeUserErrorBehav-
ior from the ModeDeclarationGroup typing the ModeDeclarationGroupPro-
totype in the ModeSwitchInterface of the PPortPrototype/PRPortProto-
type. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06785] d If the partition of the mode manager gets terminated during
an ongoing transition, the RTE shall complete the transition. c(SRS_Rte_00143,
SRS_Rte_00144)
[SWS_Rte_06786] d If the partition of the mode manager gets terminated dur-
ing an ongoing transition, the RTE shall skip the mode switch acknowledg-
ment. c(SRS_Rte_00143, SRS_Rte_00144) For mode switch acknowledgment see
[SWS_Rte_02587] and section 4.4.8

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[SWS_Rte_06787] d The RTE shall clear all mode switch notifications in the
queue when the partition of the mode manager gets terminated and after an ongoing
transition is completed. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06788] d If the attribute modeUserErrorBehavior.errorReaction-
Policy is set to lastMode the mode machine instance stays in the last mode
before the termination of the mode manager. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06789] d If the attribute modeUserErrorBehavior.errorReaction-
Policy is set to defaultMode the RTE shall enqueue the mode defined by
modeUserErrorBehavior.defaultMode to the mode switch notification
queue. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06790] d If the attribute modeUserErrorBehavior is not defined the RTE
shall enqueue the mode defined by initialMode to the mode switch notifica-
tion queue. c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06791] d The RTE shall execute the error reactions in case the partition of
the mode manager gets terminated in the following order:
1. [SWS_Rte_06785], [SWS_Rte_06786]
2. [SWS_Rte_06787]
3. [SWS_Rte_06788] or [SWS_Rte_06789] or [SWS_Rte_06790]
c(SRS_Rte_00143, SRS_Rte_00144)
[SWS_Rte_06792] d The RTE shall dequeue queued mode switch notifica-
tions and execute them regardless whether the partition with the mode manager
is terminated, restarting or restarted. Thereby the restart of the mode managers
partition shall not abort the ongoing transition of a mode machine instance. c
(SRS_Rte_00143, SRS_Rte_00144)
This ensures that the defaultMode in the mode switch notification queue
gets effective.
[SWS_Rte_06793] d The RTE shall activate RunnableEntitys triggered by a Swc-
ModeManagerErrorEvent when the partition of the mode manager is restarted. c
(SRS_Rte_00143, SRS_Rte_00144)

4.4.10 Mapping of ModeDeclarations

There exist several use cases (especially if software is reused), where mode users
are connected to mode managers providing ModeDeclarationGroups with differ-
ent ModeDeclarations than the user.
Examples:
A mode manager can be able to differentiate more fin grained sub states as it
is required by the generic mode user. But due to the definition of the mode

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communication it is not possible to use two p-ports at the mode manager be-
cause this would lead to two independent and unsynchronized mode machine
instances in the RTE.
A generic mode user can support additionally modes which are not used by all
mode managers.
This would normally lead to an error as incompatible ports are connected. To overcome
this limitation the Software Component Template [2] provides a mapping between dif-
ferent ModeDeclarations so that the RTE can translated on mode to the other.
[SWS_Rte_08511] d If a ModeDeclaration of a mode user is mapped to a sin-
gle ModeDeclaration of a mode manager the related mode of the mode user is
entered or exit when the mapped mode of the mode manager is entered or exit. c
(SRS_Rte_00236)
[SWS_Rte_08512] d If one ModeDeclaration of a mode user is mapped to sev-
eral ModeDeclarations of a mode manager the related mode of the mode user
is entered when any of the mapped modes of the mode manager mapped by one
modeDeclarationMapping is entered. The related mode of the mode user is exit
when any of the mapped modes of the mode manager mapped by one modeDecla-
rationMapping is exit and if the new mode is not mapped by the same modeDec-
larationMapping to related mode of the mode user. c(SRS_Rte_00236)
Note: If one ModeDeclaration of a mode user is mapped to several ModeDecla-
rations of a mode manager by the means of several modeDeclarationMappings
the semantics is defined in a way that the individual mode transitions of the mode man-
ager are getting visible as exit and enter events for the mode user. Further on the
transition phase gets visible by the RTE_TRANSITION return value in the case that
Rte_Mode-API is called during such a transition phase.
If one ModeDeclaration of a mode user is mapped to several ModeDeclara-
tions of a mode manager by the means of a single modeDeclarationMapping
the semantics is defined in a way that the individual mode transitions of the mode
manager are not visible for the mode user.
Example:
The mode manager and the mode user have different ModeDeclaration-
Groups which are mapped by several modeDeclarationMappings. The Mode-
DeclarationGroup of the mode manager is more fine grained, so more than one
of its ModeDeclarations has to be mapped onto the same ModeDeclaration of
the mode user. The modeDeclarationMappings can be seen in table 4.13. The
complete example is listed as ARXML in Appendix F.1.
modeDeclarationMapping ModeDeclarations of the Mapped ModeDeclara-
mode manager tions of the mode user
StartUp_2_STARTUP StartUp STARTUP
Run_2_RUN Run RUN
PostRunX_2_POST_RUN PostRun1 POST_RUN
PostRun2
ShutDown_2_SHUTDOWN ShutDown SHUTDOWN

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Sleep_Hibernate_2_SHUTDOWN Sleep SHUTDOWN

Hibernate

Table 4.13: Example of a modeDeclarationMapping which maps ModeDeclarations

from mode manager to ModeDeclarations of the mode user

Table 4.14 shows a possible scenario how mode transitions of a mode manager
will be seen from the point of view of a mode user when the modeDeclaration-
Mapping maps more than one ModeDeclaration of the mode managers Mode-
DeclarationGroup onto the same ModeDeclaration of the mode users Mode-
DeclarationGroup.
Mode transitions of the Mode transitions of the
mode manager mode user resulting out of the mapping
Undefined StartUp Undefined STARTUP
StartUp Run STARTUP RUN
Run PostRun1 RUN POST_RUN
PostRun1 PostRun2 (no transition)
PostRun2 ShutDown POST_RUN SHUTDOWN
ShutDown Sleep SHUTDOWN SHUTDOWN
Sleep Hibernate (no transition)

Table 4.14: Possible scenario of mode transitions by the mode manager and the result-
ing transitions from the point of view of the mode user

A configuration that maps several ModeDeclarations of a mode user to a single

ModeDeclaration representing a mode of a mode manager shall be rejected (see
also [constr_1209]). This is not valid as it violates the principle that modes are mutually
exclusive.
[SWS_Rte_08513] d The RTE-Generator shall reject configurations violating [con-
str_1209]. c(SRS_Rte_00236)
If a modeDeclarationMapping exists that references a ModeDeclaration repre-
senting a mode of the mode manager then ModeDeclarationMappings shall exist
that map all ModeDeclarations of the mode manager to ModeDeclarations of
the mode user (see also [constr_1210]).
[SWS_Rte_08514] d The RTE-Generator shall reject configurations violating [con-
str_1210]. c(SRS_Rte_00236)
Note: It is only supported that modes of the mode user might not be mapped.

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4.5 External and Internal Trigger

4.5.1 External Trigger Event Communication

4.5.1.1 Introduction

With the mechanism of the trigger event communication a software component or a

Basic Software Module acting as a trigger source is able to request the activation
of Runnable Entities respectively Basic Software Schedulable Entities of connected
trigger sinks. Typically but not necessarily these Runnable Entities and Basic
Software Schedulable Entities are executed in a sequential order.

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ARElement AtpBlueprintable
AtpBlueprint +component +port AtpPrototype
AtpBlueprintable Components::PortPrototype
AtpType atpVariation,atpSplitable 0..*
Components::SwComponentType

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

Components::AtomicSwComponentType
Components:: Components::
AbstractRequiredPortPrototype AbstractProvidedPortPrototype

Components::RPortPrototype Components:: Components::PPortPrototype

PRPortPrototype
+rPort * +pPort *
isOfType isOfType isOfType

+requiredInterface +providedRequiredInterface +providedInterface

1
ARElement
{redefines
AtpBlueprint
atpType}
AtpBlueprintable
AtpType
PortInterface::PortInterface

+ isService :Boolean
ARElement + serviceKind :ServiceProviderEnum [0..1]
AtpStructureElement
SwcBswMapping::SwcBswMapping

PortInterface::TriggerInterface

atpVariation
+synchronizedTrigger 0..* +trigger 1..*
+swcTrigger AtpStructureElement
SwcBswMapping::
SwcBswSynchronizedTrigger instanceRef Identifiable
1
TriggerDeclaration::Trigger

+bswTrigger + swImplPolicy :SwImplPolicyEnum [0..1]

atpVariation Tags:
1
vh.latestBindingTime =
preCompileTime
ARElement
AtpBlueprint +releasedTrigger
AtpBlueprintable
atpVariation,atpSplitable 0..*
AtpStructureElement
BswOverview::BswModuleDescription +requiredTrigger

+ moduleId :PositiveInteger [0..1] atpVariation,atpSplitable 0..*

+masteredTrigger 1
atpVariation Tags:
vh.latestBindingTime =
atpSplitable preCompileTime 0..*
+internalBehavior 0..*
BswBehavior::
InternalBehavior
BswTriggerDirectImplementation
BswBehavior:: +triggerDirectImplementation
BswInternalBehavior + task :Identifier
atpVariation,atpSplitable 0..*

atpVariation Tags:
vh.latestBindingTime =
preCompileTime

Figure 4.53: Summary of the use of Trigger by an AUTOSAR software-components and

Basic Software Modules as defined in the Software Component Template Specifica-
tion[2] and Specification of BSW Module Description Template[9].

[SWS_Rte_07212] d The RTE shall support External Trigger Event Communication. c

(SRS_Rte_00162)

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[SWS_Rte_07542] d The Basic Software Scheduler shall support the activation

of Basic Software Schedulable Entities occurrence of External Trigger Events. c
(SRS_Rte_00216)

4.5.1.2 Trigger Sink

A AUTOSAR software-component trigger sink has a dedicated require trigger

port. The trigger port is typed by an TriggerInterface declaring one or more Trig-
ger. See figure 4.53. The Runnable Entities of the of the software component are
activated at the occurrence of the external event by the means of a ExternalTrig-
gerOccurredEvent.
An Basic Software Module trigger sink has to define a requiredTrigger Trigger.
The Basic Software Schedulable Entities of the of the Basic Software Module are acti-
vated at the occurrence of the external event by the means of a BswExternalTrig-
gerOccurredEvent. See figure 4.53.
Basically there are two approaches to implement the activation of triggered Ex-
ecutableEntityss. In one case the triggered ExecutableEntityss of the
trigger sinkss triggered by one Trigger of the trigger source are mapped
in one or more tasks. In this case the event communication can be implemented by the
means of activating an Operating System Task. Please note that the tasks may belong
to different partitions.
[SWS_Rte_07213] d The RTE generator shall support invocation of triggered Ex-
ecutableEntitys via OS Task. c(SRS_Rte_00162, SRS_Rte_00216)
In the other case the Event Communication is mapped to a function call which means
that the triggered ExecutableEntitys of the trigger sinks are executed in
the Rte_Trigger API respectively SchM_Trigger API used to raise the trigger event
in the trigger sinks.
[SWS_Rte_07214] d The RTE generator shall support invocation of triggered Ex-
ecutableEntitys via direct function call, if all of the follwing conditions are fulfilled:
the triggered ExecutableEntitys do not define a minimum start distance
the trigger sink and trigger source are in the same Partition
if no BswTriggerDirectImplementation is defined.
if the preconditions of [constr_4086] are fulfilled
no queuing for the trigger source is configured
c(SRS_Rte_00162, SRS_Rte_00216)

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4.5.1.3 Trigger Source

An AUTOSAR software-component trigger source has a dedicated provide trig-

ger port. The trigger port is typed by an TriggerInterface declaring one or more
Trigger. See figure 4.53. To be able to connect a provide trigger port and a re-
quire trigger port, both ports must be categorized by the same or by compatible
TriggerInterface(s).
An Basic Software Module trigger source has to define a releasedTrigger Trigger.
See figure 4.53. The connection of releasedTrigger and requiredTrigger Trigger is
defined by the ECU configuration of the Basic Software Scheduler.
To inform the RTE about an occurrence of the external trigger event the RTE provides
the Rte_Trigger to an AUTOSAR software-component trigger source.
[SWS_Rte_07543] d The call of the Rte_Trigger API shall activate all Runnable En-
tities that are activated by ExternalTriggerOccurredEvents associated to a connected
Trigger of the trigger source if either no queuing for the Trigger is config-
ured or if queuing for the Trigger is configured and the trigger queue is empty. c
(SRS_Rte_00162)
For Basic Software Module trigger source are two options defined to interfaces
with Basic Software Scheduler.
The first option is that the Basic Software Module trigger source inform the Basic
Software Scheduler about an occurrence of the external trigger event by the call of the
SchM_Trigger API.
[SWS_Rte_07544] d The call of the SchM_Trigger API shall activate all Exe-
cutableEntitys that are activated by ExternalTriggerOccurredEvents associated to
a connected Trigger of the trigger source if either no queuing for the Trigger is
configured or if queuing for the Trigger is configured and the trigger queue is empty.
c(SRS_Rte_00216)
The second option is that the Basic Software Module trigger source directly takes
care about the activation of the particular OS task to which the ExternalTriggerOc-
curredEvents of the triggered ExecutableEntitys are mapped. In this case
the trigger source has to define a BswTriggerDirectImplementation. The name
of the used OS tasks is annotated by the task attribute. If an BswTriggerDirectImple-
mentation is defined no SchM_Trigger API is generated by the RTE generator. see
[SWS_Rte_07548] and [SWS_Rte_07264].
[SWS_Rte_07545] d The RTE generator shall reject configurations where a BswTrig-
gerDirectImplementation is specified and an ExecutableEntity that is activated by
an ExternalTriggerOccurredEvent associated to a connected Trigger of the trigger
source is mapped to an OS task different from the one defined by the task attribute of
the BswTriggerDirectImplementation. c(SRS_Rte_00216, SRS_Rte_00018)

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[SWS_Rte_07548] d The RTE generator shall reject configurations where a issuedTrig-

ger association and a BswTriggerDirectImplementation is defined for the same re-
leasedTrigger Trigger. c(SRS_Rte_00216, SRS_Rte_00018)
[SWS_Rte_CONSTR_09007] issuedTrigger and BswTriggerDirectImplementation
are mutually exclusive d A releasedTrigger Trigger shall not be referenced by both a
issuedTrigger and a BswTriggerDirectImplementation. c()
Note: This shall ensure in the combination with the existence conditions
([SWS_Rte_07264]) of the SchM_Trigger that either the Trigger API or the direct
task activation is offered to the implementation of the trigger source.
Note also that several OS tasks might be used to implement a Trigger (several
BswTriggerDirectImplementation can be defined for a releasedTrigger ).
If the BswTriggerDirectImplementation is defined for a releasedTrigger which
swImplPolicy attribute is set to queued it is part of the trigger source to imple-
ment the queue or to use the means of the OS (OsTaskActivation > 1) to queue the
number of raised triggers. (OsTaskActivation > 1). Further details about queuing of
triggers is described in 4.5.5.

4.5.1.4 Multiplicity

4.5.1.4.1 Multiple Trigger

A trigger interface contains one or more Trigger. A port of an AUTOSAR software-

component that provides an AUTOSAR trigger interface to the component can inde-
pendently raise events related to each Trigger defined in the interface .
[SWS_Rte_07215] d The RTE API shall support independent event raising for each
Trigger in a trigger interface. c(SRS_Rte_00162)
Further on a Basic Software Module trigger source can define several re-
leasedTrigger Trigger which can be independently raised.
[SWS_Rte_07546] d The Basic Software Scheduler API shall support independent
event raising for each releasedTrigger Trigger. c(SRS_Rte_00216)

4.5.1.4.2 Multiple Trigger Sinks Single Trigger Source

The concept of external event communication supports, that a trigger source

activates one or more triggered ExecutableEntitys in one or more trigger
sinks.
[SWS_Rte_07216] d The RTE generator shall support triggered ExecutableEn-
titys triggered by the same Trigger of a trigger source (1 : n communication
where n 1). c(SRS_Rte_00162, SRS_Rte_00216)

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The execution order of the triggered ExecutableEntitys in the trigger sinks de-
pends from the RteEventToTaskMapping described in chapter 7.5.1 and the con-
figured priorities of the operating system.

4.5.1.4.3 Multiple Trigger Sources Single Trigger Sink

The RTE generator does not support multiple trigger sources communicating
events to the same Trigger in a trigger sink (n : 1 communication where n > 1).
[SWS_Rte_07039] d The RTE generator shall reject configurations where multiple
trigger sources communicating events to the same Trigger in a trigger sink
(n : 1 communication where n > 1). c(SRS_Rte_00018)
[SWS_Rte_CONSTR_09008] The same Trigger in a trigger sink must not be
connected to multiple trigger sources d The same Trigger in a trigger sink must
not be connected to multiple trigger sources. c()

4.5.1.5 Synchronized Trigger

If two Triggers are synchronized by the definition of a SwcBswSynchronizedTrig-

ger then the Trigger in the referenced provide trigger port and the referenced
releasedTrigger Trigger are treated as one common Trigger. This means that
all ExecutableEntitys activated by an ExternalTriggerOccurredEvent asso-
ciated to one of the connected Trigger s are activated together.
[SWS_Rte_07218] d The RTE and Basic Software Scheduler shall activate to-
gether all ExecutableEntitys that are activated by ExternalTriggerOccurre-
dEvents associated to a synchronized connected Trigger. c(SRS_Rte_00162,
SRS_Rte_00216, SRS_Rte_00217)
[SWS_Rte_07549] d The RTE generator shall reject configurations where a synchro-
nized Trigger is referenced by more than one type of access method, where the type
is one of the following:
1. ExternalTriggeringPoint
2. issuedTrigger
3. BswTriggerDirectImplementation
c(SRS_Rte_00216, SRS_Rte_00217, SRS_Rte_00018)
[SWS_Rte_CONSTR_09009] Synchronized Trigger shall not be referenced by
more than one type of access method d A synchronized Trigger shall only be ref-
erenced by either ExternalTriggeringPoints, issuedTriggers or BswTrig-
gerDirectImplementations. c()

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Note: This shall ensure in the combination with the existence conditions
of the Rte_Trigger and SchM_Trigger that only one kind of Trigger API
([SWS_Rte_07201] and [SWS_Rte_07264]) or the direct task activation is offered to
the implementation of the trigger source.

4.5.2 Inter Runnable Triggering

With the mechanism of Inter Runnable Triggering one Runnable Entity is able to re-
quest the activation of Runnable Entities of the same software-component instance.
[SWS_Rte_07220] d The RTE shall support Inter Runnable Triggering. c
(SRS_Rte_00163)
Similar to External Trigger Event Communication (described in chapter 4.5.1) the acti-
vation of triggered runnables can be implemented by means of activating an Operating
System Task or by direct function call.
[SWS_Rte_07555] d The call of the Rte_IrTrigger API shall activate all trig-
gered runnables which InternalTriggerOccurredEvents are associated with the re-
lated InternalTriggeringPoint of the same software-component instance if either no
queuing for the InternalTriggeringPoint is configured or if queuing for the
InternalTriggeringPoint is configured and the trigger queue is empty. c
(SRS_Rte_00163)
[SWS_Rte_07221] d The RTE shall support for Inter Runnable Triggering that trig-
gered runnables entities are invoked via OS Task activation. c(SRS_Rte_00163)
[SWS_Rte_07224] d The RTE shall support for Inter Runnable Triggering that trig-
gered runnables are invoked via direct function call if all of the following conditions
are fulfilled:
none of the triggered BswSchedulableEntitys activated by this In-
ternalTriggeringPoint define a minimum start distance
no queuing for the InternalTriggeringPointis configured
c(SRS_Rte_00163)

4.5.2.1 Multiplicity

A InternalTriggeringPoint might be referenced by more than one Internal-

TriggerOccurredEvent. Therefore one RunnableEntity is able to request the
activation of several RunnableEntitys with the mechanism of Inter Runnable Trig-
gering contemporaneously.
[SWS_Rte_07223] d The RTE shall support multiple RunnableEntitys triggered
by the same InternalTriggeringPoint (1 : n Inter Runnable Triggering where
n 1). c(SRS_Rte_00163)

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The execution order of the runnable entities in the trigger sinks depends from the Runn-
able Entity to task mapping described in chapter 7.5.1 and the configured priorities of
the operating system.

4.5.3 Inter Basic Software Module Entity Triggering

The Inter Basic Software Module Entity Triggering is similar to the mechanism of In-
ter Runnable Triggering (see chapter 4.5.2) with the exception that it is used inside a
Basic Software Module. It can be used to request the activation of a BswSchedula-
bleEntity by a Basic Software Entity of the same a Basic Software Module instance.
[SWS_Rte_07551] d The Basic Software Scheduler shall support Inter Basic Software
Module Entity Triggering. c(SRS_Rte_00230)
Similar to External Trigger Event Communication (described in chapter 4.5.1) the acti-
vation of triggered BswSchedulableEntity can be implemented by means of acti-
vating an Operating System Task or by direct function call.
[SWS_Rte_07552] d The call of the SchM_ActMainFunction API shall acti-
vate all triggered BswSchedulableEntitys which BswInternalTriggerOccurre-
dEvents are associated by the related activationPoint of the same a Basic Software
Module instance if either no queuing for the BswInternalTriggeringPoint is con-
figured or if queuing for the BswInternalTriggeringPoint is configured and the
trigger queue is empty.. c(SRS_Rte_00230)
[SWS_Rte_07553] d The Basic Software Scheduler shall support for Inter Basic Soft-
ware Module Entity Triggering that triggered BswSchedulableEntitys are in-
voked via OS Task activation. c(SRS_Rte_00230)
[SWS_Rte_07554] d The Basic Software Scheduler shall support for Inter Basic Soft-
ware Module Entity Triggering that triggered BswSchedulableEntitys are in-
voked via direct function call if
the triggered BswSchedulableEntitys do not define a minimum start dis-
tance
if the preconditions of constraint [constr_4086] are fulfilled
no queuing for the BswInternalTriggeringPointis configured
c(SRS_Rte_00230)
Note: Typically the feature of Inter Basic Software Module Entity Triggering is used
to decouple the execution context of Basic Software Entities. But if this decoupling
is really required depends from the particular scheduling concept and microcontroller
performance.

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4.5.4 Inter ECU Trigger Communication

The trigger communication is also possible in case of inter-ECU communication. In

this case, a software component on an ECU can act as a trigger source for a soft-
ware component on another ECU, so requesting the activation of software components
on the other ECU.
[SWS_Rte_08409] d The RTE shall support inter-ECU Trigger Communication. c
()
[SWS_Rte_08410] d The RTE shall support the activation of RunnableEntitys oc-
currence of Trigger Events coming from another ECU. c()
[SWS_Rte_08411] d In case of an issued Trigger the RTE shall send the ISignal
associated with that Trigger to the Com stack. c()
In case no data transformation is used, the API call argument of Com_SendSignal has
no meaning. In case of data transformation, the first transformer is executed without
input data.
[SWS_Rte_08412] d In case of a received Trigger without data transformation the
RTE shall only care about the COM Notification which indicates a reception of the zero
size signal. The value of such signal shall not be read (Com_ReceiveSignal shall
not be called). c()
In case of a received Trigger with data transformation the RTE executes the inverse
data transformation on the received data from Com Stack. (See [SWS_Rte_08597]).
This is necessary to recognize transformation errors.
[SWS_Rte_08072] d The RTE generator shall reject configurations violating the [con-
str_3065]. c(SRS_Rte_00018)

4.5.5 Queuing of Triggers

The queuing of triggers ensures that the number of executions of triggered Ex-
ecutableEntitys is equal to the number of released triggers. Further on it en-
sures that the number of activations of triggered ExecutableEntitys is equal for
all associated triggered ExecutableEntitys of a trigger emitter if the as-
sociated triggered ExecutableEntitys are not activated by other RTEEvents.
Therefore the trigger queue is rather a counter than a real queue.
[SWS_Rte_07087] d The RTE shall support the queuing of triggers for
External Trigger Event Communication
Inter Runnable Triggering
Inter Basic Software Module Entity Triggering

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if the RteTriggerSourceQueueLength / RteBswTriggerSourceQueueLength

is configured > 0. c(SRS_Rte_00235)
The attribute swImplPolicy specifies a queued or non queued processing of the
trigger emitter. Since the setup of a queue might have other side effects on
the dynamic behavior of the ECU its still an design decision of the ECU integrator to
configure a trigger queue.
Therefore it is possible to configure a trigger queue regardless on the value of the
attribute swImplPolicy of the trigger emitter.
[SWS_Rte_07088] d The RTE shall enqueue a trigger when the RTE gets informed
about the occurrence of a trigger by the call of the related API (Rte_IrTrigger,
Rte_Trigger, SchM_Trigger, SchM_ActMainFunction) if queuing for this
trigger emitter is configured and if the maximum queue length (RteTrigger-
SourceQueueLength / RteBswTriggerSourceQueueLength) is not exceeded. c
(SRS_Rte_00235)
[SWS_Rte_07089] d The RTE shall dequeue a trigger when the trigger emitter is
informed about the end of execution of all triggered ExecutableEntitys which
are triggered by this trigger emitter. In the case of triggered ExecutableEntitys
whose execution is disabled by a mode disabling dependency then the trigger is de-
queued as if the entities ran. This behaviour prevents the dequeue operation from
being blocked indefinitely c(SRS_Rte_00235)
[SWS_Rte_07090] d The RTE shall activate all triggered ExecutableEntitys
associated to a trigger emitter when it has successfully dequeued a trigger from
the trigger queue of the trigger emitter except for the last dequeued trigger. c
(SRS_Rte_00235)

Figure 4.54: Queued activation of ExecutableEntitys

The figure 4.54 illustrates the basic behavior of a trigger queue.

At "A" the RTE gets informed by the call of the API about the occurrence
of a Trigger. Since no trigger is in the queue all associated triggered

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ExecutableEntitys are activated ([SWS_Rte_07544], [SWS_Rte_07555],

[SWS_Rte_07552]) and the trigger is enqueued ([SWS_Rte_07088]).
At "B" all triggered ExecutableEntitys which are triggered by this trig-
ger emitter have terminated. The RTE dequeues the trigger but since it is the
last dequeued trigger the associated triggered ExecutableEntitys are not
activated again.
At "C" the RTE gets informed by the call of the API about the occurrence of a
Trigger. Enqueuing of triggers and activating of triggered ExecutableEn-
titys is done as in "A"
At "D" the RTE gets informed again by occurrence of a trigger. Since a trigger
is already in the queue the associated triggered ExecutableEntitys are
not activated ([SWS_Rte_07544], [SWS_Rte_07555], [SWS_Rte_07552]). Nev-
ertheless the trigger is enqueued ([SWS_Rte_07088]).
At "E" all triggered ExecutableEntitys which are triggered by this
trigger emitter have terminated. The RTE dequeues the trigger
([SWS_Rte_07089]) and activates all associated triggered ExecutableEn-
titys ([SWS_Rte_07090]).
At "E" all triggered ExecutableEntitys which are triggered by this trig-
ger emitter have terminated. Dequeuing of triggers is done as in "B"
Implementation hint:
One possible solution to implement the queue for the number of released triggers is
to use the means of the operation systems which already can queue the activation
requests for a OS task (OsTaskActivation > 1). This for sure is only possible
if all ExternalTriggerOccurredEvents, InternalTriggerOccurredEvents,
BswExternalTriggerOccurredEvent and BswInternalTriggerOccurredE-
vent connected to the same trigger emitter with configured queuing are mapped
exclusively to one OS task.

4.5.6 Activation of triggered ExecutableEntities

The activation of triggered ExecutableEntitys is done like described in chapter

4.2.3. See also Fig. 4.17.
If the triggered ExecutableEntitys are activated synchronous or asynchronous
depends how the RTEEvents and BswEvents are mapped to OS tasks.
If all ExternalTriggerOccurredEvents of the trigger sinks which are associated to
connected Trigger of the trigger source
either are mapped to OS task(s) with higher priority as the OS task where the
Executable Entity calling the Rte_Trigger respectively the SchM_Trigger API
is mapped

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or are activated by direct function call

the triggering behaves synchronous. This means that all "triggered" Executable Entities
of the trigger sinks are executed before the Rte_Trigger or SchM_Trigger
API returns.
If any ExternalTriggerOccurredEvent of the trigger sinks which are associated to
connected Trigger of the trigger source
are mapped to an OS task with lower priority as the OS task where the Executable
Entity calling the Rte_Trigger respectively the SchM_Trigger API is mapped
the triggering behaves asynchronous. This means that not all triggered Exe-
cutableEntitys of the trigger sinks are executed before the Rte_Trigger
or SchM_Trigger API returns.

4.6 Initialization and Finalization

4.6.1 Initialization and Finalization of the RTE

RTE and Basic Software Scheduler have a nested life cycle. It is only
permitted to initialize the RTE if the Basic Software Scheduler is initialized
([SWS_Rte_CONSTR_09036]). Further on it is only supported to finalize the Basic
Software Scheduler after the RTE is finalized ([SWS_Rte_CONSTR_09056]).
EcuM Basic Software RTE
Scheduler

SchM_Init()

Basic Software Scheduler initialized

alt Rte initialization

Rte_Start()

RTE initialized

Rte_Stop()

SchM_Deinit()

Figure 4.55: Nested life cycle of RTE and Basic Software Scheduler

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4.6.1.1 Initialization of the Basic Software Scheduler

Before the Basic Software Scheduler is initialized only the API calls SchM_Enter and
SchM_Exit are available ([SWS_Rte_07578]).
The ECU state manager calls the startup routine SchM_Init of the Basic Software
Scheduler before any Basic Software Module needs to be scheduled.
The initialization routine of the Basic Software Scheduler will return within finite execu-
tion time (see [SWS_Rte_07273]).
The Basic Software Scheduler will initialize the mode machine instances
([SWS_Rte_02544])assigned to the Basic Software Scheduler. This will activate the
mode disablings of all initial modes during SchM_Init and trigger the execution
of the on-entry ExecutableEntitys of the initial modes. After initialization of the
Basic Software Scheduler internal data structure and mode machine instances
the activation of Basic Software Schedulable Entities triggered by BswTimingEvents
starts.
[SWS_Rte_07574] d The call of SchM_StartTiming shall start the activation of
BswSchedulableEntitys triggered by BswTimingEvents. c(SRS_Rte_00211)
[SWS_Rte_07584] d The call of SchM_Init shall start the activation of BswSchedu-
lableEntitys triggered by BswBackgroundEvents. c(SRS_Rte_00211)
Note: In case of OS task where BswEvents and RTEEvents are mapped to the RTE
Generator has to ensure, that RunnableEntitys are not activated before the RTE is
initialized or after the RTE is finalized. See [SWS_Rte_07580] and [SWS_Rte_02538].
[SWS_Rte_07580] d The Basic Software Scheduler has to prevent the activation of
RunnableEntitys before the RTE is initialized. c(SRS_Rte_00220)

4.6.1.2 Initialization of the RTE

The ECU state manager calls the startup routine Rte_Start of the RTE at the end of
startup phase II when the OS is available and all basic software modules are initialized.
The initialization routine of the RTE will return within finite execution time (see
[SWS_Rte_02585]).
Before the RTE is initialized completely, there is only a limited capability of RTE to
handle incoming data from COM:
The RTE will initialize the mode machine instances ([SWS_Rte_02544]) assigned
to the RTE. This will activate the mode disablings of all initial modes during
Rte_Start and trigger the execution of the on-entry ExecutableEntitys of
the initial modes. Further on for common mode machine instances the on-entry
Runnable Entities of the current active mode are executed during the initialization of
the RTE ([SWS_Rte_07582]). common mode machine instances can not enter
the transition phase during RTE initialization ([SWS_Rte_07583]).

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[SWS_Rte_07575] d The call of Rte_Start shall start the activation of RunnableEn-

titys triggered by TimingEvents if the Rte_StartTiming API does not exist. c
(SRS_Rte_00072)
[SWS_Rte_07178] d The call of Rte_Start shall start the activation of RunnableEn-
titys triggered by BackgroundEvents if the Rte_StartTiming API does not exist.
c(SRS_Rte_00072)
[SWS_Rte_06759] d The call of Rte_StartTiming shall start the activation of
RunnableEntitys triggered by TimingEvents if the Rte_StartTiming API does
exist. c(SRS_Rte_00072, SRS_Rte_00240)
[SWS_Rte_06760] d The call of Rte_StartTiming shall start the activation of
RunnableEntitys triggered by BackgroundEvents if the Rte_StartTiming API
does exist. c(SRS_Rte_00072, SRS_Rte_00240)
[SWS_Rte_07615] d The call of Rte_Start shall be executed on every core indepen-
dently. c()
[SWS_Rte_07616] d The Rte_Start includes the partition specific startup activities
of RTE for all partitions that are mapped to the core, from which the Rte_Start is
called. c()

4.6.1.3 Stop and restart of the RTE

Partitions of the ECU can be stopped and restarted. In a stopped or restarting parti-
tion, the OS has killed all running tasks. RTE has to react to stopping and restarting
partitions.
The RTE does not execute ExecutableEntitys of a terminated or restarting parti-
tion.
[SWS_Rte_07604] d The RTE shall not activate, start or release ExecutableEntity
execution-instances of a terminated or restarting partition. c(SRS_Rte_00195)
The RTE is notified of the termination (respectively, the beginning of
restart) of a partition by the Rte_PartitionTerminated (respectively,
Rte_PartitionRestarting) API. At this point in time, the tasks containing
the runnables of this partition are already killed by the OS. In case of restart, RTE
is notified by the Rte_RestartPartition API when the communication can be
re-initialized and re-enabled.
[SWS_Rte_07604] also applies to ExecutableEntitys whose execution started be-
fore the notification to the RTE. RTE can rely on the OS functionality to stop or restart
an OS application and all related OS objects.
When a partition is restarted, the RTE will restore an initial environment for its SW-Cs.
[SWS_Rte_02735] d When the Rte_RestartPartition API for a partition is called,
the RTE shall restore an initial environment for its SW-Cs on this partition. c()

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The SW-Cs themselves are responsible to restore their internal initial environment and
should not rely on any initialization performed by the compiler. This should be done in
initialization runnables.
[SWS_Rte_07610] d The RTE Generator shall reject configurations where the
handleTerminationAndRestart attribute of a SW-C is not set to can-
BeTerminatedAndRestarted and this SW-C is mapped on a Partition with
the PartitionCanBeRestarted parameter set to TRUE. c(SRS_Rte_00018,
SRS_Rte_00196)
When a partition is terminated or is being restarted, it is important that the runnable
entities of this partition are not activated before the partition returns to the ACTIVE
state.
In case of partition restart or termination, event sent to this partition or activation of
tasks of this partition are discarded. The RTE can use these mechanism to ensure that
ExecutableEntitys are not activated.

4.6.1.4 Finalization of the RTE

The finalization routine Rte_Stop of the RTE is called by the ECU state manager at
the beginning of shutdown phase I when the OS is still available. (For details of the
ECU state manager, see [7]. For details of Rte_Start and Rte_Stop see section
5.8.)
[SWS_Rte_02538] d The RTE shall not activate, start or release RunnableEn-
titys on a core after Rte_Stop has been called on this core. c(SRS_Rte_00116,
SRS_Rte_00220)
Note: RTE does not kill the tasks during the running state of the runnables.
[SWS_Rte_02535] d RTE shall ignore incoming client server communication requests,
before RTE is initialized completely and when it is stopped. c(SRS_Rte_00116)
[SWS_Rte_02536] d Incoming data and events from sender receiver communica-
tion shall be ignored, before RTE is initialized completely and when it is stopped. c
(SRS_Rte_00116)

4.6.1.5 Finalization of the Basic Software Scheduler

The ECU state manager calls the finalization routine SchM_Deinit of the Basic Soft-
ware Scheduler if the scheduling of Basic Software Modules has to be stopped.
[SWS_Rte_07586] d The BSW Scheduler shall neither activate nor start BswSchedu-
lableEntitys on a core after SchM_Deinit has been called on this core. c
(SRS_Rte_00116)

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Note: The BSW Scheduler does not kill the tasks during the running state of the
BswSchedulableEntitys.

4.6.2 Initialization and Finalization of AUTOSAR Software-Components

For the initialization and finalization of AUTOSAR software components, RTE provides
the mechanism of mode switches. A SwcModeSwitchEvent of an appropriate Mod-
eDeclaration can be used to trigger a corresponding initialization or finalization
runnable (see [SWS_Rte_02562]). Runnables that shall not run during initialization
or finalization can be disabled in the corresponding modes with a mode disabling
dependency (see [SWS_Rte_02503]).
Since category 2 runnables have no predictable execution time and can not be ter-
minated using ModeDisablingDependencies, it is the responsibility of the imple-
menter to set meaningful termination criteria for the cat 2 runnables. These criteria
could include mode information. At latest, all runnables will be terminated by RTE
during the shutdown of RTE, see [SWS_Rte_02538].
It is appropriate to use user defined modes that will be handled in a proprietary ap-
plication mode manager.
All runnables that are triggered by entering an initial mode, are activated immediately
after the initialization of RTE. They can be used for initialization. In many cases it might
be preferable to have a multi step initialization supported by a sequence of different
initialization modes.
In addition to the mode-based approach RunnableEntitys to be used for initializa-
tion purposes can be activated by InitEvents as well. More information is provided
in section 4.2.2.11.

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4.7 Variant Handling Support

4.7.1 Overview

The AUTOSAR Templates support the creation of Variants in a subset of its model
elements. The Variant Handling support in the in AUTOSAR Templates is driven by
the purpose to describe variability in a AUTOSAR System on several aspects, e.g.
Virtual Functional Bus
Component SwcInternalBehavior and SwcImplementation
Deployment of the software components to ECUs
Communication Matrix
Basic Software Modules
This approach requires that the RTE Generator is able to process the described Vari-
ability in input configurations and partially to implement described variability in the gen-
erated RTE and Basic Software Scheduler code.
In the meta-model all locations that may exhibit variability are marked with the stereo-
type atpVariation. This allows the definition of possible variation points.
Tagged Values are used to specify additional information.
There are four types of locations in the meta-model which may exhibit variability:
Aggregations
Associations
Attribute Values
Classes providing property sets
More details about the AUTOSAR Variant Handling Concept can be found in the AU-
TOSAR Generic Structure Template [10].
[SWS_Rte_06543] d The RTE generator shall support the VariationPoints defined
in the AUTOSAR Meta Model c(SRS_Rte_00201, SRS_Rte_00202, SRS_Rte_00229,
SRS_Rte_00191)
The list of VariationPoints shall provide an overview about the most prominent
ones which impacting the generated RTE code. Further on tables will show which
implementation of variability is standardized due to the relevance for contract phase.
(see tables 4.17, 4.19, 4.20, 4.21, 4.22, 4.23, 4.27, 4.28, 4.30 and 4.31. But please
note that these tables are not listing all possible variation of the input configuration. For
that the related Template Specifications are relevant.

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4.7.2 Choosing a Variant and Binding Variability

To understand the later definition it is required to clarify the difference between Choos-
ing a Variant and Resolving Variability.
A particular PreBuild Variant in a variant rich input configuration is chosen by assigning
particular values to the SwSystemconsts with the means of PredefinedVariants
and associated SwSystemconstantValueSets. With this information SwSystem-
constDependentFormulas can be evaluated which determines PreBuild conditions
of VariationPoints and attribute values. Nevertheless the input configuration con-
tains still the information of all potential variants.
A particular PostBuild Variant in a variant rich input configuration is chosen by as-
signing particular values to the PostBuildVariantCriterion with the means
of PredefinedVariants and associated PostBuildVariantCriterionValue-
Sets. With this information PostBuildVariantConditions can be evaluated for
instance to check the consistency of chosen PostBuild Variant. Nevertheless the input
configuration contains still the information of all potential variants.
From an RTE perspective this information is mainly used to generate the RTE Post
Build Variant Sets which are used to bind the post-build variability during
initialization of the RTE (call of SchM_Init).
The variability of an input configuration is bound if information related to other variants
is removed and only the information of the bound variant is kept. Binding respectively
resolving variability in the scope of this specification means that the generated code
only implements the particular variant which results out of the chosen variant of the
input configuration.
If the variability can not be resolved in a particular phase of the RTE Generation Pro-
cess (see chapter 3) the generated RTE files have to be able to support the potential
variants by implementing all potential variants.
If the variability is relevant for the software components contract the RTE Generator
uses standardized Condition Value Macros to implement the pre-build variabil-
ity. These Condition Value Macros are set in the RTE PreBuild Data Set Contract
Phase and RTE PreBuild Data Set Generation Phase to the resulting value of the eval-
uated ConditionByFormula of the related VariationPoint.
For further definition see sections 4.7.2.3, 4.7.2.4, 4.7.2.5, 4.7.2.6 and 4.7.2.7.

4.7.2.1 General impact of Binding Times on RTE generation

In the AUTOSAR meta-model, each VariationPoint is associated with a tag named

vh.latestBindingTime. The value of the tag yields the applicable latest binding
time for the given VariationPoint.
Each VariationPoint with a swSyscond has an attribute bindingTime in its Con-
ditionByFormula, which defines when the pre-build condition may be evaluated

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earliest for this VariationPoint. This controls the capability of the software imple-
mentation to bind the variant earliest at a certain point of time.
Even if the variability is chosen earlier (for instance by assigning SwSystemconst-
Values to the SwSystemconsts used by the VariationPoints condition) the RTE
generator has to respect potential later binding of the VariationPoints.
Please note that variability with the bindingTime PreCompileTime and post-
BuildVariantConditions has a particular semantic for the RTE generation and
impacts the generated output.
For instance a conditional existence RTE API which is bound at PreCompileTime
requires that the RTE generator inserts specific pre processor statements.
RTE Phase System De- Code Gen- Pre Compile Link Time Post Build
signe Time eration Time Time
RTE Contract Phase R R I n/a n/a
Basic Software R R I n/a n/a
Scheduler Contract
Phase
RTE PreBuild Data n/a n/a RV n/a n/a
Set Contract Phase
Basic Software R R I n/a I
Scheduler Gener-
ation Phase
RTE Generation R R I n/a I
Phase
RTE PreBuild Data n/a n/a RV n/a n/a
Set Generation Phase
RTE PostBuild Data n/a n/a n/a n/a RV
Set Generation Phase

Table 4.15: Overview impact of Binding Times on RTE generation

R resolve variability, a particular variant is the output

I implement variability, all possible variants in the output
RV provide values to resolve implemented variability PreBuild or PostBuild
n/a not applicable

Table 4.16: Key to table 4.15

4.7.2.2 Choosing a particular variant

A particular variant of the variant rich input configuration is chosen via the ECU con-
figuration For that purpose a set of PredefinedVariants is configured to chosen
a variant in the input configuration and to later on bind the variability in subsequent
phases of the RTE Generation Process 3. For further information see document [10].

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[SWS_Rte_06500] d For each pre-build variability in the input configura-

tion the RTE Generator shall choose a particular variant according to the Pre-
definedVariants selected by the parameter EcucVariationResolver. c
(SRS_Rte_00201, SRS_Rte_00202, SRS_Rte_00229, SRS_Rte_00191)
[SWS_Rte_06546] d For each post-build variability in the input configuration
the RTE Generator shall choose a particular variant according to the Predefined-
Variants selected by the parameter RtePostBuildVariantConfiguration. c
(SRS_Rte_00201, SRS_Rte_00202, SRS_Rte_00229, SRS_Rte_00191)
Having variants chosen the RTE generator can apply further consistency checks on
the particular variants.

4.7.2.3 SystemDesignTime

Variability with latest binding time SystemDesignTime (called SystemDesignTime

variability) has to be bound before the RTE Contract Phase respectively Basic
Software Scheduler Contract Phase. Such variability is resolved by RTE generator in
all generation phases. Due to that such kind of variability results always in a particular
variant and needs no special code generation rules for RTE generator.
[SWS_Rte_06501] d The RTE generator shall bind SystemDesignTime vari-
ability in the RTE Contract Phase, Basic Software Scheduler Contract Phase,
RTE Generation Phase and Basic Software Scheduler Generation Phase (3). c
(SRS_Rte_00191)
[SWS_Rte_06502] d The RTE Generator shall reject input configurations during
the RTE Contract Phase where not a particular variant is chosen for each Sys-
temDesignTime variability affecting the software components contract. c
(SRS_Rte_00201, SRS_Rte_00018)
[SWS_Rte_06503] d The RTE Generator shall reject input configurations during the
Basic Software Scheduler Contract Phase where not a particular variant is chosen
for each SystemDesignTime variability affecting the Basic Software Scheduler
contract. c(SRS_Rte_00229, SRS_Rte_00018)
[SWS_Rte_06504] d The RTE Generator shall reject input configurations during the
Basic Software Scheduler Generation Phase where not a particular variant is chosen
for each SystemDesignTime variability affecting the Basic Software Scheduler
generation. c(SRS_Rte_00229, SRS_Rte_00018)
[SWS_Rte_06505] d The RTE Generator shall reject input configurations during the
RTE Generation Phase where not a particular variant is chosen for each Sys-
temDesignTime variability affecting the RTE generation. c(SRS_Rte_00201,
SRS_Rte_00202, SRS_Rte_00018)

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4.7.2.4 CodeGenerationTime

During RTE Contract Phase, RTE Generation Phase and Basic Software Scheduler
Generation Phase the variability with latest binding time CodeGenerationTime (called
CodeGenerationTime variability) has to be bound and the RTE generator re-
solves the variability. This denotes that the code is generated for a particular variant. To
do this it is required that a particular variant for each CodeGenerationTime vari-
ability has to be chosen.
[SWS_Rte_06507] d The RTE generator shall bind CodeGenerationTime vari-
ability in the RTE Contract Phase, Basic Software Scheduler Contract Phase, RTE
Generation Phase and Basic Software Scheduler Generation Phase (see sections
3.1.1, 3.1.2, 3.4.1 and 3.4.2). c(SRS_Rte_00229, SRS_Rte_00191)
[SWS_Rte_06547] d The RTE Generator shall reject input configurations during
the RTE Contract Phase where not a particular variant is chosen for each Code-
GenerationTime variability affecting the software components contract. c
(SRS_Rte_00191, SRS_Rte_00018)
[SWS_Rte_06548] d The RTE Generator shall reject input configurations during the
Basic Software Scheduler Contract Phase where not a particular variant is chosen for
each CodeGenerationTime variability affecting the Basic Software Scheduler
contract. c(SRS_Rte_00229, SRS_Rte_00018)
[SWS_Rte_06508] d The RTE Generator shall reject input configurations during the
Basic Software Scheduler Generation Phase where not a particular variant is chosen
for each CodeGenerationTime variability affecting the Basic Software Sched-
uler generation. c(SRS_Rte_00229, SRS_Rte_00018)
[SWS_Rte_06509] d The RTE Generator shall reject input configurations during the
RTE Generation Phase where not a particular variant is chosen for each Code-
GenerationTime variability affecting the RTE generation. c(SRS_Rte_00191,
SRS_Rte_00018)

4.7.2.5 PreCompileTime

Variability with latest binding time PreCompileTime (called PreCompileTime vari-

ability) is relevant for the RTE Contract Phase and Basic Software Scheduler Con-
tract Phase as well as for the RTE Generation Phase and Basic Software Scheduler
Generation Phase. The Application Header File, Application Types Header File, Mod-
ule Interlink Header and Module Interlink Types Header and the generated RTE / Basic
Software Scheduler has to support the potential variability of the software components
and Basic Software Modules. The variability is resolved during the execution of the pre
processor of the C-Complier.
[SWS_Rte_06510] d The RTE generator shall implement PreCompileTime vari-
ability in the RTE Contract Phase, Basic Software Scheduler Contract Phase, RTE
Generation Phase, Basic Software Scheduler Generation Phase via pre processor

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statements in the generated RTE code (see sections 3.1.1, 3.1.2, 3.4.1 and 3.4.2).
c(SRS_Rte_00191)
[SWS_Rte_06553] d The RTE Generator shall use the defined Attribute Value
Macro instead of immediate values if the value depends on an AttributeVal-
ueVariationPoint where the bindingTime is set to preCompileTime. c
(SRS_Rte_00191)

4.7.2.6 LinkTime

The latest Binding Time LinkTime will not be supported for VariationPoints relevant for
the RTE Generator.
[SWS_Rte_06511] d The RTE generator shall reject configuration which defines RTE
or Basic Software Scheduler relevant LinkTime variability. c(SRS_Rte_00018)

4.7.2.7 PostBuild

Variability with latest binding time PostBuild (called post-build variability)

might be bound / rebound after the generated RTE is compiled and has been linked
to the executable. The generated RTE binary code has to contain all variants. Which
variant is executed during ECU runtime is decided by variant selectors.
[SWS_Rte_06512] d The RTE generator shall implement post-build variabil-
ity in the RTE Generation Phase and Basic Software Scheduler Generation Phase
via C statements in the generated RTE code (see 3.4.1 and 3.4.2). c(SRS_Rte_00191)
Combining PreBuild and post-build variability
According document [10] it is supported that a VariationPoint defines a pre-
build variability in conjunction with post-build variability. If the Pre-
Build condition is false, it is not expected that the element which is subject to variability
including the code evaluating the PostBuild condition gets implemented at all.
[SWS_Rte_06549] d In cases where a VariationPoint defines a SystemDesign-
Time variability or CodeGenerationTime variability in conjunction with
post-build variability the post-build variability shall only be imple-
mented by the RTE Generator in the generated RTE code if the condition of the pre-
build variability evaluates to true. c(SRS_Rte_00191)
[SWS_Rte_06550] d In cases where a VariationPoint defines a PreCompile-
Time variability in conjunction with post-build variability the post-
build variability shall only be effective in the RTE executable if the condition
of the PreCompileTime variability evaluates to true. c(SRS_Rte_00191)

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In this case the post-build variability implemented according

[SWS_Rte_06512] depends from the PreCompileTime variability imple-
mented according [SWS_Rte_06510].

4.7.3 Variability affecting the RTE generation

4.7.3.1 Software Composition

This section describes the affects of the existence of variation points with regards to
compositions. Though the application software compositions have been flattened and
effectively eliminated after allocation to an ECU there is still one composition to con-
sider for the RTE (i.e. the RootSwCompositionPrototype). The RootSwCompo-
sitionPrototype contains the atomic software components allocated to the respec-
tive ECU, its assembly connections,its delegation connections and the connections of
the delegation ports to system signals. Once the variability is resolved for a varia-
tion point it must adhere to the constraints and limitations that apply to a model that
does not have any variations. For example dangling connectors are not allowed and
as such their existence will lead to undefined behavior if such configurations still exist
after resolving post-build variation points.
Also within this specification section the wording "a variant is enabled or disabled"
refers to the variation points SwSystemconstDependentFormula and/or PostBuildVari-
antCondition evaluating to "true or false" respectively.

4.7.3.1.1 Variant existence of SwComponentPrototypes

[SWS_Rte_06601] d If a variant is disabled for the aggregation of a SwComponent-

Prototype in a CompositionSwComponentType then all RTEEvents destined for
Runnables in the respective SwComponentPrototype shall be blocked; No RTE-
Event is allowed to reach any Runnable that is contained in a "disabled" SwCompo-
nentPrototype. c(SRS_Rte_00206, SRS_Rte_00207, SRS_Rte_00204)
Potential misconfigurations of connectors connecting to ports of "disabled" SWCs
will result in undefined behavior; It is the responsibility of the person considering the
variability of the SwComponentPrototype to make the connections also variable and
valid when a variant selection results in the elimination of a SwComponentPrototype
from a composition. It is recommended to use predefined variants to ensure proper
configurations are established.

4.7.3.1.2 Variant existence of SwConnectors

[SWS_Rte_06602] d If a variant is disabled for a SwConnector (i.e. Assem-

blySwConnector or DelegationSwConnector) aggregated in a Composition-
SwComponentType then the PortPrototypes at each end of the connector shall

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behave as an unconnected port (see section 5.2.7 for the defined RTE behavior) if
no other variant enables a SwConnector between these ports. c(SRS_Rte_00206,
SRS_Rte_00207)

4.7.3.1.3 COM related Variant existence

This section describes the impact on the RTE interaction with the COM layer as a
result of variability of DataMappings (i.e. SenderReceiverToSignalMapping and
SenderReceiverToSignalGroupMapping in the SystemMapping) as well as the
existence of variants for ISignals The Meta Model allows for mapping the same data
to different SystemSignals as well as associating a SystemSignal with 1 or more
ISignals.
[SWS_Rte_06603] d If a variant is enabled for a SystemMapping aggregating a
DataMapping then the RTE shall call the appropriate APIs for the applicable map-
ping type. c(SRS_Rte_00206, SRS_Rte_00207)
[SWS_Rte_06604] d The appropriate API shall be determined based on the existence
of variants of ISignals to which a SystemSignal is associated to. For each enabled
ISignal the RTE shall call the proper COM API to send and receive data System-
Signals c(SRS_Rte_00206, SRS_Rte_00207)
For example for an instance mapping from a VariableDataPrototype to a Sys-
temSignal the RTE shall call the corresponding Com_SendSignal with the proper
SignalId and SignalDataPtr based on the selected variant DataMapping.
The existence of variants of ISignals is determined by the System element (see also
[constr_3028]).
[SWS_Rte_06605] d Delegation ports on a RootSwCompositionPrototype for
which no DataMapping exists (i.e. no variant DataMapping is enabled) shall be
considered unconnected because no path exists to a designated SystemSignal.
Since this is a delegation port all enabled delegation connectors linking SWC R-
ports to the respective delegation port must be considered unconnected (see section
5.2.7). P-Ports shall behave as documented in section 4.7.3.1.2. c(SRS_Rte_00206,
SRS_Rte_00207)

4.7.3.1.4 Variant existence of PortPrototypes

[SWS_Rte_06606] d If no variant is enabled for a delegation port on a RootSwCom-

positionPrototype then all connected R-Ports using a DelegationSwConnec-
tor to this delegation port shall be considered unconnected (see section 5.2.7). The
behavior of the P-ports shall be as defined in section 4.7.3.1.2. c(SRS_Rte_00206,
SRS_Rte_00207)
Note on variant disabling criteria: In a proper variant configuration the following should
be followed: when a PortPrototype is eliminated from any SwComponentType then

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any associated SwConnector should also have a variation point removing the connec-
tion since the connection is illegal.

4.7.3.2 Atomic Software Component and its Internal Behavior

4.7.3.2.1 RTE API which is subject to variability

Following VariationPoints in the Meta Model do control the variant existence of

RTE API for a software component. If a RTE API is variant existent, the API mapping
and the related entries in the component data structure are variant as well. This
means, if a RTE API does not exist the API mapping does not exist as well. A part
of the component data structure entries are related to the existences of the port. In
these cases the component data structure entry depends from the existence of the
PortPrototype.
Variation Point RTE API which is form kind infix
subject to variability
Condition Value Macro
ExclusiveArea Rte_Enter, component ExAr
Rte_Exit internal
[SWS_Rte_06518]
VariableDataPrototype in the role arTyped- Rte_Pim component PIM
PerInstanceMemory internal
[SWS_Rte_06518]
PerInstanceMemory Rte_Pim component PIM
internal
[SWS_Rte_06518]
ParameterDataPrototype in the role perIn- Rte_CData component Prm
stanceParameter internal
[SWS_Rte_06518]
ParameterDataPrototype in the role shared- Rte_CData component Prm
Parameter internal
[SWS_Rte_06518]
ServerCallPoint Rte_Call component
port
[SWS_Rte_06515]
AsynchronousServerCallResultPoint Rte_Result component
port
[SWS_Rte_06515]
InternalTriggeringPoint Rte_IrTrigger entity IRT
internal
[SWS_Rte_06519]
ExternalTriggeringPoint Rte_Trigger component
port
[SWS_Rte_06515]
ModeSwitchPoint Rte_Switch, component
Rte_SwitchAck port
[SWS_Rte_06515]
ModeAccessPoint Rte_Mode component
port
[SWS_Rte_06515]

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VariableAccess in the role dataReadAccess Rte_IRead , entity port

Rte_IStatus,
Rte_IsUpdated
[SWS_Rte_06515]
VariableAccess in the role dataWriteAccess Rte_IWrite, entity port
Rte_IWriteRef,
Rte_IInvalidate,
Rte_IFeedback
[SWS_Rte_06515]
VariableAccess in the role dataSendPoint Rte_Write, component
Rte_Invalidate, port
Rte_Feedback
[SWS_Rte_06515]
VariableAccess in the role dataReceive- Rte_Read component
PointByArgument port
[SWS_Rte_06515]
VariableAccess in the role dataReceive- Rte_DRead component
PointByValue port
[SWS_Rte_06515]
VariableAccess in the role readLocalVari- Rte_IrvRead component IRV
able referring an explicitInterRunnable- internal
Variable
[SWS_Rte_06518]
VariableAccess in the role writtenLo- Rte_IrvWrite component IRV
calVariable referring an explicitInter- internal
RunnableVariable
[SWS_Rte_06518]
VariableAccess in the role readLocalVari- Rte_IrvIRead entity IRV
able referring an implicitInterRunnable- internal
Variable
[SWS_Rte_06519]
VariableAccess in the role writtenLo- Rte_IrvIWrite entity IRV
calVariable referring an implicitInter- Rte_IrvIWriteRef internal
RunnableVariable
[SWS_Rte_06519]
PortPrototype referring a ParameterInter- Rte_Prm component
face port
[SWS_Rte_06515]
PortAPIOption with attribute indirectAPI Rte_Port
[SWS_Rte_06520]

Table 4.17: variant existence of RTE API

column description
kind infix The column kind infix defines infix strings to differentiate condition value
macros belonging to variation points of different API sets
form The column form specifies which names for the macro of the condition
value are concatenated to ensure a unique name space of the macro.

form description
component port The related API is provide for the whole software component and belongs
to a software components port
entity port The related API is provide for a particular RunnableEntity and belongs
to a software components port

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component internal The related API is provide for the whole software component and belongs
to a software component internal functionality
entity internal The related API is provide per RunnableEntity and belongs to a soft-
ware component internal functionality

Table 4.18: Key to table 4.17

[SWS_Rte_06517] d The RTE generator shall treat RTE API as variant RTE API only
if all elements (e.g. VariableAccess) in the input configuration controlling the exis-
tence of the same RTE API are subject to variability. c(SRS_Rte_00203)

4.7.3.2.2 Conditional API options

Following variation points in the Meta Model do control the variant properties of RTE
API or allocated Memory.
Variation Point Subject to variability
Condition Value Macro
PortAPIOption with attribute portArgValue PortDefinedArgument-
Value is passed to a
RunnableEntity
not standardized
PortAPIOption with attribute indirectAPI Number of Ports which are
supporting indirect API, see
Rte_NPorts and Rte_Ports
not standardized

Table 4.19: Conditional API options

4.7.3.2.3 Runnable Entitys and RTEEvents

Following variation points in the Meta Model do control the variant existence and acti-
vation of RunnableEntitys.
Variation Point Subject to variability
Condition Value Macro
RunnableEntity Existence of the RunnableEn-
tity prototype
[SWS_Rte_06530]
RTEEvent Activation of the RunnableEn-
tity
not standardized

Table 4.20: variation on Runnable Entitys and RTEEvents

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4.7.3.2.4 Conditional Memory Allocation

Following variation points in the Meta Model do control the variant existence of RTE
memory allocation for the software component instance.
Variation Point Subject to variability
Condition Value Macro
implicitInterRunnableVariable variable definition implementing
the implicitInterRunnabl-
eVariable
not standardized
explicitInterRunnableVariable variable definition implementing
the explicitInterRunnabl-
eVariable
not standardized
arTypedPerInstanceMemory variable definition implementing
the arTypedPerInstance-
Memory
not standardized
PerInstanceMemory variable definition implementing
the PerInstanceMemory
not standardized
perInstanceParameter constant definition implementing
the perInstanceParameter
not standardized
sharedParameter variable definition implementing
the sharedParameter
not standardized
InstantiationDataDefProps, SwDataDefProps Allocation of the memory
objects described via swAd-
drMethod, accessibility for
MCD systems described via
swCalibrationAccess,
displayFormat, mcFunc-
tion
not standardized

Table 4.21: Conditional Memory Allocation

4.7.3.3 NvBlockComponent and its Internal Behavior

Variation Point Subject to variability

Condition Value Macro
PortPrototype of a NvBlockSwComponentType typed by Nv- Existence of the ability to access
DataInterface the memory objects of the ram-
Block
not standardized
NvBlockDataMapping of a NvBlockDescriptor Existence of the ability to access
the memory objects of the ram-
Block
not standardized

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provide PortPrototype of a NvBlockSwComponentType typed Existence of the Block Manage-

by ClientServerInterface, RunnableEntity and referring ment port and the ability to
OperationInvokedEvent access the Block Management
API of the NvRAM Manager
not standardized
require PortPrototype of a NvBlockSwComponentType typed Existence of the callback notifi-
by ClientServerInterface, RoleBasedPortAssignment cation port
and referring the PortPrototype
not standardized
NumericalValueSpecification or TextValueSpecifica- initialization values of the mem-
tion of the ramBlock or romBlocks initValue ValueSpec- ory objects implementing the
ification (aggregated or referred one) ramBlock or romBlock
not standardized
InstantiationDataDefProps Allocation of the memory objects
implementing the ramBlock
or romBlock described via
swAddrMethod, accessibility
for MCD systems described
via swCalibrationAccess,
displayFormat, mcFunc-
tion
not standardized

Table 4.22: variation in NvBlockSwComponentTypes

4.7.3.4 Parameter Component

Variation Point Subject to variability

Condition Value Macro
PortPrototype of a ParameterSwComponentType Existence of the memory objects
/ definitions related to the Pa-
rameterDataPrototypes in
the PortInterface referred
by the PortPrototype
not standardized
NumericalValueSpecification or TextValueSpecifica- initialization values of the mem-
tion of the ParameterProvideComSpecs initValue Value- ory objects / definitions related
Specification (aggregated or referred one) to the ParameterDataProto-
types
not standardized

Table 4.23: variation in ParameterSwComponentTypes

4.7.3.5 Data Type

Following variation points in the Meta Model do control the variant generation of data
types.
Variation Point Subject to variability
Condition Value Macro
ImplementationDataTypeElement Existence of the structure or
union element
[SWS_Rte_06542]

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arraySize Number of elements in the array

[SWS_Rte_06541]
CompuMethod upperLimit Upper limit of the Implementa-
tionDataType

CompuMethod lowerLimit Lower limit of the Implementa-

tionDataType

CompuMethod v attributes Coefficients of nominator and

denominator

Table 4.24: variation in ImplementationDataTypes

Variation Point Subject to variability

Condition Value Macro
DataConstr upperLimit Upper limit of the Applica-
tionPrimitiveDataType
[SWS_Rte_06551]
DataConstr lowerLimit Lower limit of the Applica-
tionPrimitiveDataType
[SWS_Rte_06552]
CompuMethod upperLimit Upper limit of the Applica-
tionPrimitiveDataType

CompuMethod lowerLimit Lower limit of the Applica-

tionPrimitiveDataType

CompuMethod v attributes Coefficients of nominator and

denominator

Table 4.25: variation in ApplicationDataTypes and related meta classes

4.7.3.6 Constants

Variation Point Subject to variability

Condition Value Macro

NumericalValueSpecification value numerical value

ApplicationValueSpecification v (swArraysize) size of compound primitives

ApplicationValueSpecification v (value) attributes physical value

Table 4.26: variation in ValueSpecifications

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4.7.3.7 Basic Software Modules and its Internal Behavior

4.7.3.7.1 Basic Software Interfaces

Variation Point Subject to variability

Condition Value Macro
providedEntry Existence of the provided
BswModuleEntry
not standardized
outgoingCallback Existence of the expected
BswModuleEntry
not standardized
ModeDeclarationGroupPrototype in role providedMode- Existence of the provided
Group ModeDeclarationGroup-
Prototype
not standardized
ModeDeclarationGroupPrototype in role requiredMode- Existence of the required
Group ModeDeclarationGroup-
Prototype
not standardized
Trigger in role releasedTrigger Existence of the released
Trigger
not standardized
Trigger in role requiredTrigger Existence of the required Trig-
ger
not standardized

Table 4.27: variability affecting Basic Software Interfaces

4.7.3.8 Flat Instance descriptor

It is possible to instruct the RTE Generator to provide various instances for a Pa-
rameterDataPrototype in the component description. Therefore one FlatIn-
stanceDescriptor per expected parameter instance has to point to the Param-
eterDataPrototype. Thereby the FlatInstanceDescriptors needs to define
post build variation points to resolve the access to the various parameter instances.
Further details are described in section 4.2.8.3.7.

4.7.4 Variability affecting the Basic Software Scheduler generation

4.7.4.1 Basic Software Scheduler API which is subject to variability

The VariationPoints listed in table 4.28 in the input configuration are controlling
the variant existence of Basic Software Scheduler API.
Variation Point Subject to variability form kind infix
Condition Value Macro
ExclusiveArea SchM_Enter, SchM_Exit module ExAr
internal

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[SWS_Rte_06535]
managedModeGroup association to SchM_Switch, module MMod
providedModeGroup ModeDeclara- SchM_SwitchAck external
tionGroupPrototype
[SWS_Rte_06536]
accessedModeGroup association to pro- SchM_Mode module AMod
videdModeGroup or requiredModeGroup external
ModeDeclarationGroupPrototype
[SWS_Rte_06536]
issuedTrigger association to re- SchM_Trigger module Tr
leasedTrigger Trigger external
[SWS_Rte_06536]
BswModuleCallPoint SchM_Call module SrvCall
external
[SWS_Rte_06536]
BswAsynchronousServerCallResult- SchM_Result module SrvRes
Point external
[SWS_Rte_06536]
dataSendPoint association to provided- SchM_Send module DSP
Data external
[SWS_Rte_06536]
dataReceivePoint association to re- SchM_Receive module DRP
quiredData external
[SWS_Rte_06536]
BswInternalTriggeringPoint SchM_ActMainFunction entity ITr
internal
[SWS_Rte_06536]
perInstanceParameter Parameter- SchM_CData module PIP
DataPrototype internal
[SWS_Rte_06535]

Table 4.28: variant existence of Basic Software Scheduler API

column description
kind infix The column kind infix defines infix strings to differentiate condition value
macros belonging to variation points of different API sets
form The column form specifies which names for the macro of the condition
value are concatenated to ensure a unique name space of the macro.

form description
module external The related API is provide for the whole module and belongs to a module
interface
module internal The related API is provide for the whole module and belongs to a module
internal functionality
entity internal The related API is provide per ExecutableEntity and belongs to a mod-
ule internal functionality

Table 4.29: Key to table 4.28

[SWS_Rte_06537] d The RTE generator shall treat the existence of Basic Software
Scheduler API as subject to variability only if all elements (e.g. managedModeGroup

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association) in the input configuration controlling the existence of the same Basic Soft-
ware Scheduler API are subject to variability. c(SRS_Rte_00229)

4.7.4.2 Basic Software Entities

The VariationPoints listed in table 4.30 in the input configuration are controlling the
variant existence of BswModuleEntitys and the variant activation of BswSchedula-
bleEntitys.
Variation Point Subject to variability
Condition Value Macro
BswSchedulableEntity Existence of the BswSchedu-
lableEntity prototype
[SWS_Rte_06532]
BswEvent Activation of the BswSchedu-
lableEntity
not standardized

Table 4.30: variability affecting BswSchedulableEntitys

4.7.4.3 API behavior

The VariationPoints listed in table 4.31 in the input configuration are controlling
the variant behavior of Basic Software Scheduler API.
Variation Point Subject to variability
Condition Value Macro
BswModeSenderPolicy Queue length in the mode ma-
chine instance dependent
from the attribute
not standardized
BswModeReceiverPolicy attribute supportsAsyn-
chronousModeSwitch has to
be considered according the
bound variant
not standardized

Table 4.31: variant existence of BswSchedulableEntity

4.7.5 Variability affecting SWC implementation

In this section some examples will be given in order to describe the affects of variability
with regard to SWC implementation. The implemented variability in SWCs is described
through VariationPointProxys and can be resolved by pre-build evaluation, by
post-build evaluation or by the combination of them. Furthermore for each Varia-
tionPointProxy AUTOSAR defines the categorys VALUE and CONDITION (see
Software Component Template [2]). In the following code examples one scenario for

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each category will be described. The first scenario addresses the post-build case
and the second one the case of combination of pre-build and post-build.
Scenario for category VALUE
VariationPointProxy FRIDA
postBuildValueAccess Rte_PBCon_FRIDA = 3
might result for example in something like:
1 /* Generated RTE-Code */
2
3 const Rte_PBCon_FRIDA 3

1 /* SWC-Code */
2
3 if (Rte_PBCon_FRIDA == 3) {
4 /* code depending on proxy FRIDA */
5 }
6 else {
7 /* functional alternative, if FRIDA is not selected */
8 }

Scenario for category CONDITION

SystemConstant FRANZ = 10
VariationPointProxy HUGO
conditionAccess Rte_SysCon_HUGO = (FRANZ == 10)
postBuildVariantCondition A = 3, postBuildVariantCondition B = 5
might result for example in something like:
1 /* Generated RTE-Code */
2
3 #define Rte_SysCon_HUGO 1
4
5 #define Rte_PBCon_HUGO (
6 Rte_SysCon_HUGO &&
7 RteInternal_EvalPostBuildVariantCondition_HUGO_A &&
8 RteInternal_EvalPostBuildVariantCondition_HUGO_B
9 )

1 /*SWC-Code*/
2
3 /* ensure that no code for HUGO remains in
4 the binary, if HUGO is not selected */
5 #if Rte_SysCon_HUGO
6
7 /* check during run time, if HUGO is
8 active due to post-build conditions */
9 if (Rte_PBCon_HUGO) {
10 /* code depending on proxy HUGO */
11 }
12 else {
13 /* functional alternative, if HUGO is not selected */
14 }
15

16 #else

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17 /* functional alternative is always

18 active since HUGO is not selected */
19 #endif

Since the post-build data structure is not standardized the algorithm for the evaluation
of the expressions RteInternal_EvalPostBuildVariantCondition_HUGO_A
and RteInternal_EvalPostBuildVariantCondition_HUGO_B is up to the im-
plementer.
In contrast to Rte_SysCon the Rte_PBCon API has no guarantee, that it can be re-
solved in the pre-processor. It is subject to the optimization of the compiler to reduce
code size. If one wants to be absolutely sure, that no superfluous code exists even with
non optimizing compilers, he needs to implement a pre-processor directive in addition
(see example).

4.8 Default errors

Errors which can occur at runtime in the RTE are classified as default errors. The RTE
uses a BSW module report these types of errors to the DET [25] (Default Error Tracer).

4.8.1 DET Report Identifiers

[SWS_Rte_07676] d Default errors shall be reported to the DET if and only if RteDe-
vErrorDetect is enabled. c(SRS_BSW_00337)
[SWS_Rte_06631] d The RTE shall use the OS Application Identifier as the Instance Id
to enable the developer to identify in which runtime section of the RTE the error occurs.
This Instance ID is even unique across multi cores and so implicitly allows the default
error to be traced to a specific core. c(SRS_BSW_00337)
[SWS_Rte_06632] d The RTE shall use the Service Id as identified in the table 4.33.
Each RTE API template, RTE callback template and RTE API will have an Identifier.
This ID Service ID must be used when running code in the context of the respective
RTE call. c(SRS_BSW_00337)

4.8.2 DET Error Identifiers

Only a limited set of development identifiers are currently recognized. Each of these
need to be detected either at runtime or during initialization of the RTE. To report these
errors extra development code must be generated by the RTE generator.
[SWS_Rte_06633] d An RTE_E_DET_ILLEGAL_SIGNAL_ID (0x01) shall be reported
at runtime by the RTE when it receives a COM callback for a signal name (e.g.
Rte_COMCbk_<sn>, Rte_COMCbkTAck_<sn>) which was not expected within the

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context of the currently-selected postBuild variant. See section 5.9.2.1 for the list of
possible COM callback template API. c(SRS_BSW_00337)
[SWS_Rte_06634] d An RTE_E_DET_ILLEGAL_VARIANT_CRITERION_VALUE
(0x02) shall be reported by the RTE when it determines that a value is assigned to
a variant criterion which is not in the list of possible values for that criterion. This error
shall be detected during the RTE initialization phase. c(SRS_BSW_00337)
[SWS_Rte_07684] d An RTE_E_DET_ILLEGAL_VARIANT_CRITERION_VALUE
(0x02) shall be reported by the Basic Software Scheduler when the SchM_Init API
is called with a NULL parameter. c(SRS_BSW_00337)
[SWS_Rte_06635] d An RTE_E_DET_ILLEGAL_INVOCATION (0x03) shall be re-
ported by the RTE when it determines that an RTE API is called by a Runnable which
should not call that RTE API. The RTE can identify the active Runnable when it dis-
patches the RTE Event and if it subsequently receives a call from that Runnable to
an API that is not part of its contract then this particular error ID must me logged. c
(SRS_BSW_00337)
[SWS_Rte_06637] d An RTE_E_DET_WAIT_IN_EXCLUSIVE_AREA (0x04) shall be
reported by the RTE when an application has called an Rte_Enter API and subse-
quently asks the RTE to enter a wait state. This is illegal because it would lock the
ECU. c(SRS_BSW_00337)
[SWS_Rte_07675] d An RTE_E_DET_ILLEGAL_NESTED_EXCLUSIVE_AREA
(0x05) shall be reported by the RTE when an application violates
[SWS_Rte_CONSTR_09029]. c(SRS_BSW_00337)
[SWS_Rte_07685] d An RTE_E_DET_SEG_FAULT (0x06) shall be reported by the
RTE when the parameters of an RTE API call contain a direct or indirect reference to
memory that is not accessible from the callers partition as defined in [SWS_Rte_02752]
and [SWS_Rte_02753]. c(SRS_BSW_00337)
[SWS_Rte_07682] d If RteDevErrorDetectUninit is enabled, an
RTE_E_DET_UNINIT (0x07) shall be reported by the RTE when one of the APIs :
Specified in 5.6.
Rte_NvMNotifyInitBlock.
Rte_PartitionTerminated.
Rte_PartitionRestarting.
Rte_RestartPartition.
is called before Rte_Start, after Rte_Stop or After the partition to witch the API
belongs is terminated. c(SRS_BSW_00337)
Note:
In production mode, No checks are performed.

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In development mode, if an error is detected the API behaviour is undefined and

it is left to the Rte implementer.
Rational: The introduction of this developpement check should not introduce big
changes to production mode configuration.
[SWS_Rte_07683] d If RteDevErrorDetectUninit is enabled, an
RTE_E_DET_UNINIT (0x07) shall be reported by the Basic Software Scheduler
/ RTE when one of the APIs SchM_Switch, SchM_Mode, SchM_SwitchAck,
SchM_Trigger, SchM_Send, SchM_Receive, SchM_Call, SchM_Result,
SchM_ActMainFunction, SchM_Start, SchM_StartTiming, or Rte_Start is
called before SchM_Init. c(SRS_BSW_00337)

4.8.3 DET Error Classification

The following abbreviations are used to identify the DET error in table 4.33.
Abbreviation RTE DET Error
ISI RTE_E_DET_ILLEGAL_SIGNAL_ID
IVCV RTE_E_DET_ILLEGAL_VARIANT_CRITERION_VALUE
II RTE_E_DET_ILLEGAL_INVOCATION
INEA RTE_E_DET_ILLEGAL_NESTED_EXCLUSIVE_AREA
WIEA RTE_E_DET_WAIT_IN_EXCLUSIVE_AREA
UNINIT RTE_E_DET_UNINIT

Table 4.32: Abbreviations of RTE DET Errors to APIs

The following table 4.33 indicates which DET errors are relevant for the various RTE
APIs, and the service ID associated with the RTE APIs (see [SWS_Rte_06632]): UNINIT
IVCV

INEA
WIEA
ISI

II

API name Service ID

Rte_Ports APIs 0x10 X
Rte_NPorts APIs 0x11 X
Rte_Port APIs 0x12 X
Rte_Send APIs 0x13 X
Rte_Write APIs 0x14 X
Rte_Switch APIs 0x15 X
Rte_Invalidate APIs 0x16 X
Rte_Feedback APIs 0x17 X X
Rte_SwitchAck APIs 0x18 X X
Rte_Read APIs 0x19 X
Rte_DRead APIs 0x1A X
Rte_Receive APIs 0x1B X X
Rte_Call APIs 0x1C X X
Rte_Result APIs 0x1D X X
Rte_Pim APIs 0x1E X
Rte_CData APIs 0x1F X
Rte_Prm APIs 0x20 X

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Rte_IRead APIs 0x21 X

Rte_IWrite APIs 0x22 X
Rte_IWriteRef APIs 0x23 X
Rte_IInvalidate APIs 0x24 X
Rte_IStatus APIs 0x25 X
Rte_IrvIRead APIs 0x26 X
Rte_IrvIWrite APIs 0x27 X
Rte_IrvIWriteRef APIs 0x31 X
Rte_IrvRead APIs 0x28 X
Rte_IrvWrite APIs 0x29 X
Rte_Enter APIs 0x2A X
Rte_Exit APIs 0x2B X X
Rte_Mode APIs 0x2C
Rte_Trigger APIs 0x2D X
Rte_IrTrigger APIs 0x2E X
Rte_IFeedback APIs 0x2F X
Rte_IsUpdated APIs 0x30 X
trigger by TimingEvent 0x50 X
trigger by BackgroundEvent 0x51 X
trigger by SwcModeSwitchEvent 0x52 X
trigger by AsynchronousServerCallReturnsEvent 0x53 X
trigger by DataReceiveErrorEvent 0x54 X
trigger by OperationInvokedEvent 0x55 X
trigger by DataReceivedEvent 0x56 X
trigger by DataSendCompletedEvent 0x57 X
trigger by ExternalTriggerOccurredEvent 0x58 X
trigger by InternalTriggerOccurredEvent 0x59 X
trigger by DataWriteCompletedEvent 0x5A X
Rte_Start API 0x70 X
Rte_Stop API 0x71
Rte_PartitionTerminated APIs 0x72
Rte_PartitionRestarting APIs 0x73
Rte_RestartPartition APIs 0x74
Rte_Init API 0x75
Rte_StartTiming API 0x76
Rte_COMCbkTAck_<sn> callbacks 0x90 X
Rte_COMCbkTErr_<sn> callbacks 0x91 X
Rte_COMCbkInv_<sn> callbacks 0x92 X
Rte_COMCbkRxTOut_<sn> callbacks 0x93 X
Rte_COMCbkTxTOut_<sn> callbacks 0x94 X
Rte_COMCbk_<sg> callbacks 0x95 X
Rte_COMCbkTAck_<sg> callbacks 0x96 X
Rte_COMCbkTErr_<sg> callbacks 0x97 X
Rte_COMCbkInv_<sg> callbacks 0x98 X
Rte_COMCbkRxTOut_<sg> callbacks 0x99 X
Rte_COMCbkTxTOut_<sg> callbacks 0x9A X
Rte_COMCbk_<sn> callbacks 0x9F X
Rte_LdComCbkRxIndication_<sn> callbacks 0xA0 X X
Rte_LdComCbkStartOfReception_<sn> callbacks 0xA1 X X
Rte_LdComCbkCopyRxData_<sn> callbacks 0xA2 X X
Rte_LdComCbkTpRxIndication_<sn> callbacks 0xA3 X X
Rte_LdComCbkCopyTxData_<sn> callbacks 0xA4 X X
Rte_LdComCbkTpTxConfirmation_<sn> callbacks 0xA5 X X

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Rte_LdComCbkTriggerTransmit_<sn> callbacks 0xA6 X X

Rte_LdComCbkTxConfirmation_<sn> callbacks 0xA7 X X
Rte_SetMirror callbacks 0x9B
Rte_GetMirror callbacks 0x9C
Rte_NvMNotifyJobFinished callbacks 0x9D
Rte_NvMNotifyInitBlock callbacks 0x9E X
SchM_Init API 0x00 X
SchM_Deinit API 0x01
SchM_GetVersionInfo API 0x02
SchM_Enter APIs 0x03
SchM_Exit APIs 0x04 X
SchM_ActMainFunction APIs 0x05 X
SchM_Switch APIs 0x06 X
SchM_Mode APIs 0x07 X
SchM_SwitchAck APIs 0x08 X
SchM_Trigger APIs 0x09 X
SchM_Send APIs 0x0A X
SchM_Receive APIs 0x0B X
SchM_Call APIs 0x0C X
SchM_Result APIs 0x0D X

Table 4.33: Applicability of RTE DET Errors to APIs

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4.9 Bypass Support

Rapid prototyping can be used during electronic control unit development to evaluate
and test new software control algorithms for various functions.
With Fullpass technology the original ECU is totally replaced by a Rapid Prototyping
Unit (RPU).
With Bypass technology the original ECU and software stays in the control loop to
supports the majority of the control algorithms and interface with sensors, actuators
and communication buses: only the specific control algorithm that shall be prototyped
is deported into the RPU (external bypass) or even directly executed in the original ECU
(internal bypass). Bypass mainly consists in replacing at run time inputs and/or outputs
of the original software algorithms by value computed by the prototype algorithm under
test.
The RTE does not directly implement bypass but the RTE provides supports for the
integration of such implementation by CDD and/or integration code.

4.9.1 Bypass description

In order to describe a rapid prototyping system as an Autosar Software Component a

System Description with the category RPT_SYSTEM is used. This System Description
is not relevant for the RTE itself but is only a support for the ECU integrator to setup
the rapid prototyping solution.
[SWS_Rte_07833] d RTE shall ignore definitions in System Description of category
RPT_SYSTEM. c(SRS_Rte_00244)

4.9.2 Component wrapper method

The component wrapper method consists in wrapping the original software component
implementation with a CDD that implements the bypass. With this method the CDD is
able to take the control of the AUTOSAR interfaces of the software component because
there is no more direct call between RTE and the SWC but everything go through the
CDD.

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SWC A SWC B SWC A

RTE RTE

SWC B

RPT CDD

Figure 4.56: Component wrapper method

The RTE supports the component wrapper method by generating the SWC interfaces
with a c-namespace including an additional [Byps_] infix for the bypassed SWC (i.e.
SWC B in Figure 4.56). This includes:
naming of Application Header File
naming of the Application Type Header File
naming of the RTE APIs (excepted life cycle APIs)
naming of the runnables
naming of the instance handle
naming of the Component Data Structure type
naming of the memory sections
The component wrapper method for bypass support is enabled per software compo-
nent type.
[SWS_Rte_07840] d The component wrapper method for bypass support is enabled
for a software component type if the general switch RteBypassSupport is set to COM-
PONENT_WRAPPER and the individual switch for this software component type RteBy-
passSupportEnabled is set to true. c(SRS_Rte_00244)

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[SWS_Rte_07841] d The component wrapper method for bypass support is disabled

for a software component type if the general switch RteBypassSupport is set to
value different from COMPONENT_WRAPPER or if the individual switch for this software
component type RteBypassSupportEnabled is not configured or is set to false. c
(SRS_Rte_00244)
[SWS_Rte_07834] d If the component wrapper method for bypass support is en-
abled for a software component type, the RTE generator shall include the optional
infix [Byps\_] to the name of all the elements generated for this software compo-
nent type that are defined in this specification with the optional infix [Byps\_]. c
(SRS_Rte_00244)
[SWS_Rte_07835] d If the component wrapper method for bypass support is dis-
abled for a software component type, the RTE generator shall remove the optional
infix [Byps\_] to the name of all the elements generated for this software compo-
nent type that are defined in this specification with the optional infix [Byps\_]. c
(SRS_Rte_00244)

4.9.3 Direct buffer access method

The direct buffer access method provides runtime direct read and write access to the
RTE buffers that implement the ECU communication infrastructure.
The RTE supports the direct buffer access method by generating the McSupportData
for these buffers. This is already supported by the RTE measurement and calibration
support but for the rapid prototyping purpose additional elements shall be generated.
The component wrapper method for bypass support is enabled per software compo-
nent type.
The component wrapper method for bypass support is enabled for a software compo-
nent type if the individual switch for this software component type RteBypassSup-
portEnabled is set to true.
[SWS_Rte_07836] d If the direct buffer access method for bypass support is en-
abled for a software component type, the RTE generator shall generate McSup-
portData with mcDataAccessDetails for each preemption area specific buffer
that implements the implicit communication for this software component type. c
(SRS_Rte_00244)

4.9.4 Extended buffer access method

The extended buffer access method enhances the support for rapid prototyping (RP) to
support the bypass use case where the RTE cannot be regenerated by the bypass user.
The goal is to ensure that all VariableDataPrototypes that are communicated
via RTE APIs are written to and read back from a RP global buffer that can be

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modified by rapid prototyping tools (RPT). The method applies to all RTE APIs and not
just those for implicit access and hence is termed the extended buffer access method.

SWC A SWC B SWC A SWC B

RP

RTE RTE

Figure 4.57: Extended Buffer Access method

Within the Extended buffer access method a VariableDataPrototype, an RTE-

Event or a complete SwComponentPrototype can be flagged for rapid prototyp-
ing at one of three levels depending on whether or not post-build hooking is used.
rptLevel1 is intended for use by post-build hooking tools and rptLevel2 and
rptLevel3 by non post-build hooking. The mapping from RTE API class to supported
level is defined by Table 4.34.
API Class rptLevel1 rptLevel2 rptLevel3
Explicit S/R Yes Yes Yes
Implicit S/R Yes Yes Yes
C/S Yes Yes Yes
Mode Yes Yes Yes
Trigger No No No
Explicit IRV Yes Yes Yes
Implicit IRV Yes Yes Yes

Table 4.34: Table of API classes and supported RPT level

4.9.4.1 Global Enable

[SWS_Rte_06086] d The Extended Buffer Access method is enabled if the

general switch RteBypassSupport is set to EXTENDED_BUFFER_ACCESS c
(SRS_Rte_00244)
When RteBypassSupport is set to a value other than EXTENDED_BUFFER_ACCESS
then no bypass support, i.e. no use of RP memory interface, no RP service point,
etc., is generated.
When RteBypassSupport is set to EXTENDED_BUFFER_ACCESS then the RteBy-
passSupportEnabled and/or RteServicePointSupportEnabled must also be

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set to true for Extended Buffer Access bypass support to be generated for a software
component.
The configuration options are summarized in Table 4.35.
RteBypassSupport RteBypass- RteServicePoint- Effect
(global) SupportEnabled SupportEnabled
(per-SWC) (per-SWC)
NONE or COMPONENT_- Any Any No bypass support gener-
WRAPPER ated by RTE. No RP ex-
port generated by RTE
EXTENDED_BUFFER_- FALSE FALSE No bypass support for
ACCESS SWC type generated by
RTE in code (i.e. No ser-
vice points and no use
of RP memory interface).
RP export describes ser-
vice points for SWC Inter-
nal service points only.
EXTENDED_BUFFER_- FALSE TRUE Service points generated
ACCESS for SWC. No use of RP
memory interface. RP
export describes resulting
SWC Internal and RTE
assigned service points.
EXTENDED_BUFFER_- TRUE FALSE Service points not gener-
ACCESS ated for SWC. RP mem-
ory interface generated
for RTE APIs. RP export
describes SWC Internal
service points and also
the resulting RP buffers
and enabler flags.
EXTENDED_BUFFER_- TRUE TRUE Service points generated
ACCESS for SWC. RP memory in-
terface generated for RTE
APIs. RP export de-
scribes resulting SWC In-
ternal and RTE assigned
service points, RP buffers
and enabler flags.

Table 4.35: Summary of enable/disable options for Extended Buffer Access method

4.9.4.2 RPT Preparation

The RptImplPolicy.rptPreparationLevel supports three preparation levels:

Level 1 When RptImplPolicy.rptPreparationLevel is set to
rptLevel1 then the generated RTE uses a specific memory access pattern
(a write-read cycle within accessing code created by the RTE generator) suitable
for access by post-build hooking tools patch writes to buffers.

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Level 2 When RptImplPolicy.rptPreparationLevel is set to

rptLevel2 then in addition to the use of an RP global buffer (as for rptLevel1)
the generated code also includes an RP enabler flag that is used to make update
of the RP global buffer conditional.
The RP enabler flag can be in either (calibratable) ROM or RAM based on Rpt-
Container.rptEnablerImplType.
Level 3 When RptImplPolicy.rptPreparationLevel is set to
rptLevel3 then in addition to the requirements of rptLevel2, the generated
code also records the original ECU-generated value as well as the RP replace-
ment value.
When rptImplPolicy of a RptContainer is used the RptContainer can refer-
ence:
VariableDataPrototype the preparation level applies to a single data item
(and hence, for example, related Sender-Receiver APIs).
ArgumentDataPrototype the preparation level applies to a single opera-
tion argument (and hence related Client-Server APIs).
ModeDeclarationGroupPrototype the preparation level applies to a single
ModeDeclaration argument (and hence related Mode APIs).
operation the preparation level applies to all ClientServerOperations
ArgumentDataPrototypes (and hence related Client-Server APIs).
RunnableEntity the preparation level applies to a all data items / arguments
accessed by the RunnableEntity.
SwComponentPrototype the preparation level applies to all RunnableEn-
titys (and hence all accessed data items and arguments) in the software com-
ponent.

4.9.4.3 Level 1 - Post-Build Hooking

This level is intended to be used by post-build hooking tools that patch writes to buffers
such that a bypass value is written into a buffer rather than the value calculated by the
ECU.
Logically this means that a C statement like:
1 buffer = ecu_value;

is patched to be:
1 buffer = f(ecu_value);

where f() is a function calculated by the RP system, e.g. on external RP hardware.

Note that the function call in the example may be, in reality, a simple access to a value
calculated by the RP system rather than an actual function call.

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4.9.4.3.1 Explicit Sender-Receiver and IRV APIs

As an example of the changes to generated RTE code when rptLevel1 of the Ex-
tended Buffer Access method is enabled, consider an Rte_Write API that sends
VariableDataPrototype D via port P using explicit semantics. A typical imple-
mentation might look something like Example 4.12:

Example 4.12
1 Std_ReturnType Rte_Write_P_D(<type> data)
2 {
3 <send> data;
4 return <result of send>;
5 }

Where <type> is the implementation data type of the VariableDataPrototype,

<send> represents the transmission process, e.g. via COM or direct access, and
<result of send> represents the return value of the RTE API.
To support RP the implementation, Example 4.12 is modified as follows:

Example 4.13
1 /* RP global buffer */
2 volatile <type> SWCA_Bypass_P_D;
3
4 Std_ReturnType Rte_Write_P_D(<type> data)
5 {
6 SWCA_Bypass_P_D = data;
7 <send> SWCA_Bypass_P_D;
8 return <result of send>;
9 }

The changes as a result of rptLevel1 support revolve around the reads/writes of the
RP global buffer. These changes are summarized by the following two require-
ments:
[SWS_Rte_06033] d When rptLevel1 support is enabled for a VariableDataPro-
totype accessed using explicit semantics the RTE generator shall write each associ-
ated IN or INOUT API parameter to a RP global buffer. c(SRS_Rte_00244)
Subsequent accesses to the actual parameter within the generated function are re-
placed by use of the RP global buffer instead.
[SWS_Rte_06034] d When rptLevel1 support is enabled for a VariableDataPro-
totype accessed using explicit semantics then within RTE APIs the RTE generator
shall read the value of the associated IN and INOUT parameters from the RP global
buffer rather than use the formal parameter. c(SRS_Rte_00244)

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These modifications ensure that if an RP tool patches the write to the RP global
buffer SWCA_Bypass_P_D then the value that is written by the RP tool to
SWCA_Bypass_P_D will be sent instead of the actual function parameter data.
The requirements inherently cause the RP global buffer to exist thus there is no
explicit requirement to create the global buffer. However the characteristics of this
buffer are constrained as follows.
[SWS_Rte_06035] d An RP global buffer used for rptLevel1 data shall be
marked as volatile. c(SRS_Rte_00244)
The volatile keyword is essential to ensure that compiler optimization does not elide
the read of SWCA_Bypass_P_D in <send> SWCA_Bypass_P_D.
[SWS_Rte_06036] d The RP global buffer contents shall be valid for at least the
lifetime of the accessing RTE function (i.e. the lifetime of the runnable that calls the RTE
function) and any related measurement and stimulation services. c(SRS_Rte_00244)
[SWS_Rte_06037] d The same RP global buffer shall always be used for the
same SWCI/API-type/port/variable-data-prototype. c(SRS_Rte_00244)
Requirement [SWS_Rte_06037] ensures stability for post-build hooking tools, e.g. if
we have Rte_Write_P_D for SWCA then the same RP global buffer is used irre-
spective of when or how SWCA calls Rte_Write_P_D. Since the RTE API is created
per-SWC instance then different instances will use different RP global buffers.
Note that requirement [SWS_Rte_06036] indicates the minimum lifetime required; in
an implementation the actual lifetime may be longer.
The above requirements are not intended to indicate that a dedicated RP global
buffer must be created. In particular, if the generated RTE already contains a buffer
whose characteristics satisfy those of an RP global buffer then an implementation
is free to reuse the existing buffer.
As an additional example, consider an Rte_Read API that receives VariableDat-
aPrototype D via port P. A typical implementation might look something like Exam-
ple 4.14:

Example 4.14
1 Std_ReturnType Rte_Read_P_D(<type>* const data)
2 {
3 *data = <receive>;
4 <notifications>;
5 return <result of receive>;
6 }

Where <type> is the implementation data type of the VariableDataPrototype,

<receive> represents the reception process, e.g. from COM or direct access,
<notifications> the steps required (if any) to notify that the reception has occurred
and <result of receive> represents the return value of the RTE API.

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When using the Extended buffer access method and the rptPreparationLevel is
rptLevel1, the RptContainer references D and rptReadAccess is rptReadAc-
cess the generated RTE API from Example 4.14 is modified to become Example 4.15:

Example 4.15
1 volatile <type> SWCB_Bypass_P_D; /* RP global buffer */
2 Std_ReturnType Rte_Read_P_D(<type>* const data)
3 {
4 SWCB_Bypass_P_D = <receive>;
5 *data = SWCB_Bypass_P_D;
6 <notifications>;
7 return <result of receive>;
8 }

[SWS_Rte_06038] d When rptLevel1 support is enabled for a VariableDataPro-

totype accessed by explicit semantics the RTE generator shall substitute the write of
received data to an associated OUT or INOUT API parameter with a write to an RP
global buffer. c(SRS_Rte_00244)
[SWS_Rte_06039] d When rptLevel1 support is enabled for a VariableDataPro-
totype accessed by explicit semantics the RTE generator shall copy from the RP
global buffer to OUT or INOUT API parameters before performing any AUTOSAR
data reception notifications (and thus before the API returns if there are no notifica-
tions). c(SRS_Rte_00244)
As with the explicit write, these requirements ensure that if an RP tool patches the write
to SWCB_Bypass_P_D then the value that the tool writes will be returned to the API
caller rather than the originally received value.
The characteristics of the RP global buffer are defined for the <send> pro-
cess above. In particular the volatile keyword is essential to ensure that
compiler optimization does not elide the read of the RP global buffer in
*data = SWCB_Bypass_P_D.
Additional volatile RP global buffers are also used for IRV arguments in a
similar way to the sender-receiver Rte_Read and Rte_Write APIs.

4.9.4.3.2 Interaction With Data Conversion

[SWS_Rte_06088] d Where a VariableDataPrototype is subject to data conver-

sion before being transmitted the conversion shall occur before the write to the RP
global buffer. c(SRS_Rte_00244)
Assuming the data conversion if represented by the function f(x) then the example
Rte_Write API would become Example 4.16:

Example 4.16
1 /* RP global buffer */

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2 volatile <type2> SWCA_Bypass_P_D;

3
4 Std_ReturnType Rte_Write_P_D(<type> data)
5 {
6 SWCA_Bypass_P_D = f(data);
7 <send> SWCA_Bypass_P_D;
8 return <result of send>;
9 }

Where <type2> is the data type after conversion.

4.9.4.3.3 Implicit Sender-Receiver and IRV

For implicit Sender-Receiver and IRV communication, RP global buffers are used
when the context-local implicit communication buffers are initialized and written back.
Consider an Rte_IWrite API that sends VariableDataPrototype D via port P and
an Rte_IRead API that reads VariableDataPrototype E via port Q. A typical
implementation might look like:
1 local_P_D = global_P_D;
2 local_Q_E = global_Q_E;
3 Runnable();
4 global_P_D = local_P_D;

Where Runnable() uses Rte_IWrite_P_D() and Rte_IRead_Q_E() which in

turn access the context-local buffers local_P_D and local_Q_E to provide the re-
quired semantics.
When rptPreparationLevel is rptLevel1 and the container references the im-
plicitly accessed VariableDataPrototype this is modified as follows:
1 volatile <type> Bypass_P_D; /* RP global buffer */
2 volatile <type> Bypass_Q_E; /* RP global buffer */

And inside the generated task body:

1 TASK(...)
2 {
3 volatile <type> local_P_D;
4 volatile <type> local_Q_E;
5
6 /* ... */
7
8 local_P_D = global_P_D; /* Not changed */
9 Bypass_Q_E = global_Q_E; /* Setup via RP global buffer */
10 local_Q_E = Bypass_Q_E;
11 Runnable();
12 Bypass_P_D = local_P_D; /* Write-back via RP global buffer */
13 global_P_D = Bypass_P_D;
14 }

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To enable the RP tool to intercept the update of the context-local buffer used by the
implicit APIs the Extended Buffer Access method uses an RP global buffer in a
similar fashion to the explicit APIs.
[SWS_Rte_06040] d When rptLevel1 support is enabled for a VariableDataPro-
totype accessed by implicit semantics the RTE generator shall first update the RP
global buffer from the RTE global variable / COM signal and then update the pre-
emption area specific buffer from the RP global buffer before runnable invocation
c(SRS_Rte_00244)
[SWS_Rte_06087] d When rptLevel1 support is enabled for a VariableDataPro-
totype accessed by implicit semantics the RTE generator shall, after runnable termi-
nation, perform any write-back by first writing the preemption area specific buffer to the
RP global buffer and then updating the RTE global variable / COM signal from
the RP global buffer. c(SRS_Rte_00244)
The Runnable() sequence can comprise of one or more calls to different runnables.
Each runnable has a unique implicit API and therefore can, potentially, access different
context-local buffers.
Finally, the write to the preemption area specific buffer and subsequent use could be
used as the write-read cycle required for post-build hooking. A distinct RP global
buffer may therefore be optimized away in some circumstances and the preemption
area specific buffer used to enforce the requirement memory access pattern.
[SWS_Rte_06091] d When rptLevel1 support is enabled the RTE generator should
avoid dedicated RP global buffer variables for implicit communication by im-
plementing the preemption area specific buffers according to the (implementation)
requirements on a RP global buffer ([SWS_Rte_06035],[SWS_Rte_06036]). c
(SRS_Rte_00244)
For instance in this case the preemption area specific buffers needs to be declared as
volatile.

4.9.4.3.4 Mode APIs

Mode APIs are handled in a similar manner to explicit Sender-receiver APIs with the
actual function parameters being written to an associated RP global buffer before
use.
[SWS_Rte_06107] d When rptLevel1 support is enabled for a ModeDeclara-
tionGroupPrototype the RTE generator shall write the API parameter to a RP
global buffer. c(SRS_Rte_00244)
Subsequent accesses to the actual parameter within the generated function are re-
placed by use of the RP global buffer instead.
[SWS_Rte_06108] d When rptLevel1 support is enabled for a ModeDeclara-
tionGroupPrototype then within RTE APIs the RTE generator shall read the value

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of the associated parameter from the RP global buffer rather than use the formal
parameter. c(SRS_Rte_00244)
These modifications ensure that if an RP tool patches the write to the RP global
buffer then the value that is written by the RP tool will be used as the new mode
instead of the actual function parameter.
As an additional example, consider the typical implementation for an Rte_Switch API
shown in Example 4.17 (error handling omitted for clarity):

Example 4.17
1 Std_ReturnType Rte_Switch_P_M( <type> newMode )
2 {
3 if ( ! <in_transition> )
4 {
5 mode = newMode;
6 <notifications>
7 }
8 else
9 {
10 <enQueue>( newMode );
11 }
12 return E_OK;
13 }

When using the Extended buffer access method and the rptPreparationLevel is
rptLevel1 the generated RTE API from Example 4.17 is modified to become Exam-
ple 4.18:

Example 4.18
1 /* RP global buffer */
2 volatile <type> SWCA_Bypass_P_M;
3
4 Std_ReturnType Rte_Switch_P_M( <type> newMode )
5 {
6 SWCA_Bypass_P_M = newMode;
7

8 if ( ! <in_transition> )
9 {
10 mode = SWCA_Bypass_P_M;
11 <notifications>
12 }
13 else
14 {
15 <enQueue>( SWCA_Bypass_P_M );
16 }
17 return E_OK;
18 }

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4.9.4.3.5 Client-Server APIs

rptLevel1 support can be enabled for individual parameters within an operation.

The generated support differs based on the parameter direction.

4.9.4.3.5.1 IN Parameters

Client-Server parameters with direction of IN are copied to a dedicated RP

global buffer variable before use to ensure the required write-read cycle. For IN
parameters passed by reference a deep-copy is used.
[SWS_Rte_06092] d When rptLevel1 support is enabled for an ArgumentDat-
aPrototype with direction of IN the generated RTE API shall write the parameter
to a RP global buffer. c(SRS_Rte_00244)
Subsequent accesses to the actual parameter within the generated RTE function are
replaced by use of the RP global buffer instead.
[SWS_Rte_06093] d When rptLevel1 support is enabled for an ArgumentDat-
aPrototype with direction of IN the RTE generator shall read the value of the
associated parameter from the RP global buffer rather than use the formal pa-
rameter. c(SRS_Rte_00244)
These modifications ensure that if an RP tool patches the write to the RP global
buffer SWCA_Bypass_P_OP_a then the value that is written by the RP tool to
SWCA_Bypass_P_OP_a will be see by the server instead of the actual function pa-
rameter a.
As an example of the changes to generated RTE code when rptLevel1 of the Ex-
tended Buffer Access method is enabled, consider an Rte_Call API that invokes
ClientServerOperation OP via port P. A typical implementation might look
something like Example 4.19:

Example 4.19
1 Std_ReturnType Rte_Call_P_OP([IN] <type> a)
2 {
3 Server( a );
4 return E_OK;
5 }

[SWS_Rte_06092] and [SWS_Rte_06093] modify Example 4.19 as follows:

Example 4.20
1 /* RP global buffer */
2 volatile <type> SWCA_Bypass_P_OP_a;
3
4 Std_ReturnType Rte_Call_P_OP([IN] <type> a)
5 {

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6 /* Copy to RP global buffer */

7 SWCA_Bypass_P_OP_a = a;
8 Server( SWCA_Bypass_P_OP_a );
9 return E_OK;
10 }

The RP global buffer is volatile according to [SWS_Rte_06035].

4.9.4.3.5.2 OUT Parameters

When rptLevel1 support is enabled for Client-Server parameters with direction

of OUT the server generated value can be replaced with a value generated by the RPT.
In the generated code the value generated by the server is captured into a dedicated
RP global buffer and then, after the server has completed, returned to the client
via a copy that permits the RPT to affect the returned value.
[SWS_Rte_06094] d When rptLevel1 support is enabled for an ArgumentDat-
aPrototype with direction of OUT the generated RTE API shall invoke the server
with the OUT parameter replaced by a reference to an RP global buffer. c
(SRS_Rte_00244)
After the server call the generated RTE API must return either the RPT generated
result or the server generated result returned to the client.
[SWS_Rte_06095] d When rptLevel1 support is enabled for an ArgumentDat-
aPrototype with direction of OUT the RTE generator shall copy the value of the
associated parameter from the RP global buffer. c(SRS_Rte_00244)
These modifications ensure that if an RP tool patches the write to the RP global
buffer SWCA_Bypass_P_OP_a then the value that is written by the RP tool to
SWCA_Bypass_P_OP_a will be see by the server instead of the actual function pa-
rameter a.
As an example of the changes to generated RTE code when rptLevel1 of the Ex-
tended Buffer Access method is enabled, consider an Rte_Call API that invokes
ClientServerOperation OP via port P. A typical implementation might look
something like Example 4.21:

Example 4.21
1 Std_ReturnType Rte_Call_P_OP([OUT] <type> a)
2 {
3 Server( a );
4 return E_OK;
5 }

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[SWS_Rte_06094] and [SWS_Rte_06095] modify Example 4.21 as follows:

Example 4.22
1 /* RP global buffer */
2 volatile <type> SWCA_Bypass_P_OP_a;
3
4 Std_ReturnType Rte_Call_P_OP([OUT] <type> a)
5 {
6 /* Pass reference to RP global buffer to server */
7 Server( &SWCA_Bypass_P_OP_a );
8
9 /* Copy server value (possible modified by RPT) to client */
10 <deep-copy>( a, &SWCA_Bypass_P_OP_a );
11 return E_OK;
12 }

4.9.4.3.5.3 IN-OUT Parameters

When rptLevel1 support is enabled for Client-Server parameters with direction

of IN-OUT the server generated value can be replaced with a value generated by the
RPT as well as the value seen by the server being modified by RPT. Therefore in
addition to the support for OUT parameters an initial copy before the server invocation
is necessary.
[SWS_Rte_06096] d When rptLevel1 support is enabled for an ArgumentDat-
aPrototype with direction of IN-OUT the generated RTE API shall initialize
the RP global buffer with the actual parameter before server invocation. c
(SRS_Rte_00244)
After the server call the generated RTE API must return either the RPT generated
result or the server generated result returned to the client.
[SWS_Rte_06097] d When rptLevel1 support is enabled for an ArgumentDat-
aPrototype with direction of IN-OUT the RTE generator shall copy the value of
the associated parameter from the RP global buffer. c(SRS_Rte_00244)
As an example of the changes to generated RTE code when rptLevel1 of the Ex-
tended Buffer Access method is enabled, consider an Rte_Call API that invokes
ClientServerOperation OP via port P. A typical implementation might look
something like Example 4.23:

Example 4.23
1 Std_ReturnType Rte_Call_P_OP([IN-OUT] <type> a)
2 {
3 Server( a );
4 return E_OK;
5 }

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[SWS_Rte_06094] and [SWS_Rte_06095] modify Example 4.21 as follows:

Example 4.24
1 /* RP global buffer */
2 volatile <type> SWCA_Bypass_P_OP_a;
3
4 Std_ReturnType Rte_Call_P_OP([IN-OUT] <type> a)
5 {
6 /* Copy in value (possible modified by RPT) to RP global buffer */
7 <deep-copy>( &SWCA_Bypass_P_OP_a, a );
8
9 /* Pass reference to RP global buffer to server */
10 Server( &SWCA_Bypass_P_OP_a );
11

12 /* Copy server value (possible modified by RPT) to client */

13 <deep-copy>( a, &SWCA_Bypass_P_OP_a );
14 return E_OK;
15 }

4.9.4.4 Level 2 - Non Post-Build Hooking

This level is used for bypass scenarios where the binary code remains unchanged after
RTE generation in particular any code level requirements for bypass are inserted
when the RTE is generated. For example, RP global buffers may be inserted as
for rptLevel1 however run-time RP enabler flags are also added to allow control
of how the buffers are used.
The typical Rte_Write Example 4.12 becomes Example 4.25:

Example 4.25
1 /* RP global buffer */
2 volatile <type> SWCA_Bypass_P_D;
3

4 /* RP enabler flag */
5 volatile <flag> SWCA_Bypass_P_D_Enable = FALSE;
6
7 Std_ReturnType Rte_Write_P_D(<type> data)
8 {
9 if ( FALSE == SWCA_Bypass_P_D_Enable )
10 {
11 SWCA_Bypass_P_D = data;
12 }
13 <send> SWCA_Bypass_P_D;
14 <notifications>;
15 return <result of send>;
16 }

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Where <type>, <send>, <notifications> and <result of send> are as be-

fore.
rptLevel2 is conceptually similar to rptLevel1 but with the additional constraint
that the RP global buffer is only updated within the generated RTE function when
the RP enabler flag is disabled11 . Thus when the RP enabler flag is dis-
abled, rptLevel2 has the same semantics as rptLevel1.
[SWS_Rte_06041] d When rptLevel2 support is enabled for a ModeDeclara-
tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics and the RP enabler flag is disabled the RTE generator shall write each
associated IN or INOUT API parameter to a RP global buffer before the actual
parameter is otherwise used within the generated function. c(SRS_Rte_00244)
Subsequent accesses to the actual parameter within the generated function are re-
placed by use of the RP global buffer instead.
[SWS_Rte_06042] d When rptLevel2 support is enabled for a ModeDeclara-
tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics then within RTE APIs the RTE generator shall read the value of the associated
IN and INOUT parameters from the RP global buffer rather than use the formal
parameter. c(SRS_Rte_00244)
The typical Rte_Read Example 4.14 becomes Example 4.26:

Example 4.26
1 /* RP global buffer */
2 volatile <type> SWCB_Bypass_P_D;
3

4 /* RP enabler flag */
5 volatile <flag> SWCB_Bypass_P_D_Enable = FALSE;
6
7 Std_ReturnType Rte_Read_P_D(<type>* const data)
8 {
9 <type> temp = <receive>;
10 if ( FALSE == SWCB_Bypass_P_D_Enable )
11 {
12 SWCB_Bypass_P_D = temp;
13 }
14 *data = SWCB_Bypass_P_D;
15 <notifications>;
16 return <result of receive>;
17 }

[SWS_Rte_06043] d When rptLevel2 support is enabled for a ModeDeclara-

tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
11
The RP enabler flags are described using inverted logic to reflect the requirements of bypass en-
able/disable. When rptLevel2/rptLevel3 bypass is disabled we want the API to use the value from
the APIs data argument whereas when rptLevel2/rptLevel3 bypass is enabled we do not want
the API to use the value from the data argument because the RP service point will have written
the bypass value into the RP global buffer before the runnable containing the API runs.

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mantics and the RP enabler flag is disabled the RTE generator shall write the
value destined for each OUT or INOUT API parameter to an associated RP global
buffer after the value is received within the generated function. c(SRS_Rte_00244)
[SWS_Rte_06044] d When rptLevel2 support is enabled for a VariableDataPro-
totype accessed using explicit semantics then within RTE APIs the RTE generator
shall read the value of the associated OUT and INOUT parameters from the RP global
buffers rather than directly using the values received in the generated function. c
(SRS_Rte_00244)
rptLevel2 support can be enabled for individual parameters within an operation.
The generated RP enabler flags control the copies of the parameter before and/or
after the server invocation within the generated RTE API.
For IN and IN-OUT parameters the generated code conditionally overwrites the value
in the associated RP global buffer before server invocation. The overwrite oc-
curs when the RP enabler flag is disabled and hence bypass use of the RP
generated value is enabled.
[SWS_Rte_06098] d When rptLevel2 support is enabled for a ArgumentDataPro-
totype with direction IN or IN-OUT and the RP enabler flag is disabled the
RTE generator shall write the actual parameter value destined for each IN or IN-OUT
API parameter to an associated RP global buffer after the value is received within
the generated function. c(SRS_Rte_00244)
To enable replacement of the server generated value with one generated by the RPT
a selection can be made based on the RP enabler flag.
[SWS_Rte_06099] d When rptLevel2 support is enabled for a ArgumentDataPro-
totype with direction IN-OUT or OUT and the RP enabler flag is disabled the
RTE generator shall copy the server-generated value to the RP global buffer be-
fore copying the RP global buffer to the clients IN-OUT or OUT parameter . c
(SRS_Rte_00244)
[SWS_Rte_06100] d When rptLevel2 support is enabled for a ArgumentDataPro-
totype with direction IN-OUT or OUT and the RP enabler flag is enabled
the RTE generator shall copy the RP global buffer to the clients IN-OUT or OUT
parameter after the server invocation is complete. Note that in this case the server-
generated value is ignored. c(SRS_Rte_00244)
Requirements [SWS_Rte_06099] and [SWS_Rte_06100] require that the output
comes from two different places; the server generated value when bypass is disabled
and the RPT generate value when enabled. This implies the use of a temporary data
store passed to the server to avoid overwriting the RPT value held in the RP global
buffer.
[SWS_Rte_06101] d When rptLevel2 support is enabled for a ArgumentDataPro-
totype with direction IN-OUT the generated code shall use separate RP en-
abler flags for input-side and output-side bypass. c(SRS_Rte_00244)

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The Rte_Call Example 4.23 is then modified as follows:

Example 4.27
1 /* Input-side bypass */
2 volatile <type> SWCA_BypassIN_P_OP_a;
3 volatile <flag> SWCA_BypassIN_P_OP_Enable = FALSE;
4
5 /* Output-side bypass */
6 volatile <type> SWCA_BypassOUT_P_OP_a;
7 volatile <flag> SWCA_BypassOUT_P_OP_Enable = FALSE;
8
9 Std_ReturnType Rte_Call_P_OP([IN-OUT] <type> a)
10 {
11 if ( FALSE == SWCA_BypassIN_P_OP_Enable )
12 {
13 /* RP disabled... use IN value */
14 <deep-copy>( &SWCA_BypassIN_P_OP_a, a );
15 }
16

17 /* Pass reference to RP global buffer to server */

18 Server( &SWCA_BypassIN_P_OP_a );
19
20 if ( FALSE == SWCA_BypassOUT_P_OP_Enable )
21 {
22 /* Output-side bypass disabled: use server value */
23 <deep-copy>( a, &SWCA_BypassIN_P_OP_a );
24 }
25 else
26 {
27 /* Copy RPT-initialized value to client */
28 <deep-copy>( a, &SWCA_BypassOUT_P_OP_a );
29 }
30
31 return E_OK;
32 }

Note: The update of SWCA_BypassOUT_P_OP_a occurs in the background and is not

shown in Example 4.27. The exact point that this occurs is not defined but will be
before it is used in the generated function.
For IN and OUT parameters the generated code is similar to Example 4.27 but with
either the input-side or output-side bypass omitted as appropriate.

4.9.4.4.1 RP Enabler Flag

The RP enabler flags control how the generated APIs interact with the RP
global buffers (e.g. as updated by a post build hooking tool) depending on the
flag state:

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Disabled When the RP enabler flag for a VariableDataPrototype is dis-

abled the values received by the APIs are written to the RP global buffers
and the APIs behave as normal.
Enabled When the RP enabler flag for a VariableDataPrototype is en-
abled the write defined by [SWS_Rte_06043] does not occur and thus the API
ignores data generated by runnables and uses bypass values written into the RP
global buffers.
[SWS_Rte_06075] d When rptLevel2 support is enabled for a ModeDeclara-
tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics then within RTE APIs the RTE generator shall support RP enabler flags
to permit the write to the RP global buffer to be disabled. c(SRS_Rte_00244)
The RP enabler flags can be variables in RAM (as in the example), calibration
characteristics or both - as specified in the input configuration. The <type> used for
RP enabler flag is implementation dependent, e.g. an AUTOSAR Boolean or a
bit-packed type, but is described in the generated RP description to enable access by
RPT.
[SWS_Rte_06073] d The RTE generator shall create RP enabler flags in RAM
when rptEnablerImplType is rptEnablerRam or rptEnablerRamAndRom. c
(SRS_Rte_00244)
[SWS_Rte_06074] d The RTE generator shall create RP enabler flags as cal-
ibration characteristics when a rptEnablerImplType is rptEnablerRom. c
(SRS_Rte_00244)
To enable the bypass to take effect the generated API must use the RP global
buffers (as updated according to [SWS_Rte_06043], [SWS_Rte_06073] and
[SWS_Rte_06074]) within the generated code rather than the values on input to the
API.
[SWS_Rte_06079] d When the rptEnablerImplType is rptEnablerRamAndRom
the two RP enabler flags are logically ANDd. c(SRS_Rte_00244)
When both RAM and calibration characteristics are used the formulation would be
something like:

Example 4.28
1 /* RP enabler flag (in RAM) */
2 volatile <flag> SWCA_Bypass_P_D_Enable = FALSE;
3
4 /* RP enabler flag (as a characteristic) */
5 volatile const <flag> SWCA_Bypass_P_D_Enable_Char = FALSE;
6
7 if ( ( FALSE == SWCA_Bypass_P_D_Enable ) &&
8 ( FALSE == SWCA_Bypass_P_D_Enable_Char ) )
9 {
10 SWCA_Bypass_P_D = data;
11 }

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In the above examples <flag> represents the RP enabler flag data type. Imple-
mentations are at liberty to provide optimized implementations of the enablers, e.g.
packing multiple enabler flags into a single variable, depending on known hardware
characteristics.

4.9.4.5 Level 3 - Extended Non Post-Build Hooking

rptLevel3 is an extension of rptLevel2 but also records the value the ECU calcu-
lated. For example:

Example 4.29
1 /* RP global buffer */
2 volatile <type> SWCA_Bypass_P_D;
3
4 /* RP global measurement buffer */
5 volatile <type> SWCA_Bypass_P_D_Original;
6
7 /* RP enabler flag */
8 volatile <flag> SWCA_Bypass_P_D_Enable = FALSE;
9
10 Std_ReturnType Rte_Write_P_D(<type> data)
11 {
12 SWCA_Bypass_P_D_Original = data;
13 if ( FALSE == SWCA_Bypass_P_D_Enable )
14 {
15 SWCA_Bypass_P_D = data;
16 }
17 <send> SWCA_Bypass_P_D
18 return <result of send>
19 }

[SWS_Rte_06045] d When rptLevel3 support is enabled for a ModeDeclara-

tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics the RTE generator shall write the associated IN or INOUT API parame-
ter to a RP global measurement buffer on entry to the generated function. c
(SRS_Rte_00244)
[SWS_Rte_06046] d When rptLevel3 support is enabled for a ModeDeclara-
tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics and the RP enabler flag is disabled the RTE generator shall write each
associated IN or INOUT API parameter to a RP global buffer after the RP
global measurement buffer is updated and before the RP global buffer is
otherwise used within the generated function. c(SRS_Rte_00244)
[SWS_Rte_06102] d When rptLevel3 support is enabled for a ArgumentDataPro-
totype the RTE generator shall write the associated IN or INOUT API parame-
ter to a RP global measurement buffer on entry to the generated function. c
(SRS_Rte_00244)

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[SWS_Rte_06103] d When rptLevel3 support is enabled for a ArgumentDat-

aPrototype and the RP enabler flag is disabled the RTE generator shall write
each associated IN or INOUT API parameter to a RP global buffer after the RP
global measurement buffer is updated and before the RP global buffer is
otherwise used within the generated function. c(SRS_Rte_00244)
Subsequent accesses to the actual parameter within the generated function are re-
placed by use of the RP global buffer instead.
[SWS_Rte_06047] d When rptLevel3 support is enabled for a ModeDeclara-
tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics then within RTE APIs the RTE generator shall read the value of the associated
IN and INOUT parameters from the RP global buffer rather than use the formal
parameter. c(SRS_Rte_00244)
[SWS_Rte_06104] d When rptLevel3 support is enabled for a ArgumentDataPro-
totype then within RTE APIs the RTE generator shall read the value of the associated
IN and INOUT parameters from the RP global buffer rather than use the formal
parameter. c(SRS_Rte_00244)
And likewise for the Rte_Read API:

Example 4.30
1 /* RP global buffer */
2 volatile <type> SWCB_Bypass_P_D;
3
4 /* RP global measurement buffer */
5 volatile <type> SWCB_Bypass_P_D_Original;
6
7 /* RP enabler flag */
8 volatile <flag> SWCB_Bypass_P_D_Enable = FALSE;
9
10 Std_ReturnType Rte_Read_P_D(<type>* const data)
11 {
12 <type> temp = <receive>;
13 SWCB_Bypass_P_D_Original = temp;
14 if ( FALSE == SWCB_Bypass_P_D_Enable )
15 {
16 SWCB_Bypass_P_D = temp;
17 }
18 *data = SWCB_Bypass_P_D;
19 return <result of receive>;
20 }

[SWS_Rte_06048] d When rptLevel3 support is enabled for a ModeDeclara-

tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics the RTE generator shall write the value destined for each OUT or INOUT API
parameter to an associated RP global measurement buffer after the value is
received within the generated function. c(SRS_Rte_00244)

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[SWS_Rte_06105] d When rptLevel3 support is enabled for a ArgumentDataPro-

totype the RTE generator shall write the value destined for each OUT or INOUT API
parameter to an associated RP global measurement buffer after the value is
returned by the server within the generated function. c(SRS_Rte_00244)
[SWS_Rte_06049] d When rptLevel3 support is enabled for a ModeDecla-
rationGroupPrototype or a VariableDataPrototype accessed using ex-
plicit semantics and the RP enabler flag is disabled the RTE generator shall
write the value destined for each OUT or INOUT API parameter to an associated
RP global buffer after the RP global measurement buffer is updated. c
(SRS_Rte_00244)
[SWS_Rte_06106] d When rptLevel3 support is enabled for a ArgumentDat-
aPrototype and the RP enabler flag is disabled the RTE generator shall
write the value destined for each OUT or INOUT API parameter to an associated
RP global buffer after the RP global measurement buffer is updated. c
(SRS_Rte_00244)
[SWS_Rte_06050] d When rptLevel3 support is enabled for a ModeDeclara-
tionGroupPrototype or a VariableDataPrototype accessed using explicit se-
mantics then within RTE APIs the RTE generator shall read the value of the associated
OUT and INOUT parameters from the RP global buffers rather than directly using
the values received in the generated function. c(SRS_Rte_00244)
The Rte_Call Example 4.23 is then modified as follows:

Example 4.31
1 /* Input-side bypass */
2 volatile <type> SWCA_BypassIN_P_OP_a;
3 volatile <type> SWCA_BypassINMeasurementBuf_P_OP_a;
4 volatile <flag> SWCA_BypassIN_P_OP_Enable = FALSE;
5

6 /* Output-side bypass */
7 volatile <type> SWCA_BypassOUT_P_OP_a;
8 volatile <type> SWCA_BypassOUTMeasurementBuf_P_OP_a;
9 volatile <flag> SWCA_BypassOUT_P_OP_Enable = FALSE;
10
11 Std_ReturnType Rte_Call_P_OP([IN-OUT] <type> a)
12 {
13 /* rptLevel3: Retain input value */
14 <deep-copy>( &SWCA_BypassINMeasurementBuf_P_OP_a, a );
15 if ( FALSE == SWCA_BypassIN_P_OP_Enable )
16 {
17 /* RP disabled... use IN value */
18 <deep-copy>( &SWCA_BypassIN_P_OP_a, a );
19 }
20 else
21 {
22 /* RP enabled... do nothing & use value from RPT */
23 }
24
25 /* Pass reference to RP global buffer to server */

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26 Server( &SWCA_BypassIN_P_OP_a );
27
28 /* rptLevel3: Retain server generated value */
29 <deep-copy>( &SWCA_BypassOUTMeasurementBuf_P_OP_a, &
SWCA_BypassIN_P_OP_a );
30

31 if ( FALSE == SWCA_BypassOUT_P_OP_Enable )
32 {
33 /* Output-side bypass disabled: use server value */
34 <deep-copy>( a, &SWCA_BypassIN_P_OP_a );
35 }
36 else
37 {
38 /* Copy RPT-initialized value to client */
39 <deep-copy>( a, &SWCA_BypassOUT_P_OP_a );
40 }
41
42 return E_OK;
43 }

For IN and OUT parameters the generated code is similar to Example 4.31 but with
either the input-side or output-side bypass omitted as appropriate.

4.9.4.6 Level 2 and 3 - Non Post-Build Hooking and Implicit Communication

For implicit communication the context-local buffer is updated from the global master
via an interception if the RP enabler flag is disabled. For rptLevel3 the original
(master) data is also preserved in the RP global measurement buffer. A typi-
cal implementation for the initialization of the context-local buffer within a task (when
rptLevel3 support is enabled) would therefore look like:

Example 4.32
1 /* RP global buffer */
2 volatile <type> SWCB_Bypass_P_D;
3
4 /* RP global measurement buffer */
5 volatile <type> SWCB_Bypass_P_D_Original;
6
7 /* RP enabler flag */
8 volatile <flag> SWCB_Bypass_P_D_Enable = FALSE;
9
10 TASK(X)
11 {
12 /* RP global measurement buffer = global master data */
13 SWCB_Bypass_P_D_Original = global_P_D;
14
15 if ( FALSE == SWCB_Bypass_P_D_Enable )
16 {
17 /* RP global buffer = global master data */
18 SWCB_Bypass_P_D = global_P_D;

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19 }
20
21 /* context-local buffer */
22 local_P_D = SWCB_Bypass_P_D;
23 ...
24 }

When the RP enabler flag is disabled the global master data is used to update
SWCB_Bypass_P_D and hence the RP generated value is not used. Conversely when
bypass is enabled the value written by the RPT into SWCB_Bypass_P_D is used rather
than overwriting with the global master.
[SWS_Rte_06051] d When rptLevel3 is enabled for a VariableDataPrototype
accessed by implicit semantics the RTE generator shall update the RP global mea-
surement buffer before the context-local buffer is updated (via the RP global
buffer). c(SRS_Rte_00244)
[SWS_Rte_06052] d When rptLevel2 or rptLevel3 is enabled for a Variable-
DataPrototype accessed by implicit semantics and the RP enabler flag is dis-
abled the RTE generator shall write the value from the global master data to the RP
global buffer. c(SRS_Rte_00244)
[SWS_Rte_06053] d When rptLevel2 or rptLevel3 is enabled for a Variable-
DataPrototype accessed by implicit semantics the RTE generator shall write the
value from the RP global buffer to the context-local buffer after the RP global
buffer is updated. c(SRS_Rte_00244)
[SWS_Rte_06054] d The RTE generator shall perform the above requirements
in the sequence [SWS_Rte_06051] [SWS_Rte_06052] [SWS_Rte_06053]. c
(SRS_Rte_00244)
After runnable termination the value produced must be written back to the global mas-
ter. The write-back occurs via an interception if the RP enabler flag is disabled.
For rptLevel3 the original data produced by the runnable is also preserved in the
RP global measurement buffer. A typical implementation for the initialization
of the context-local buffer within a task (when rptLevel3 support is enabled) would
therefore look like:

Example 4.33
1 /* RP global buffer */
2 volatile <type> SWCB_Bypass_P_D;
3
4 /* RP global measurement buffer */
5 volatile <type> SWCB_Bypass_P_D_Original;
6

7 /* RP enabler flag */
8 volatile <flag> SWCB_Bypass_P_D_Enable = FALSE;
9
10 TASK(X)
11 {

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12 ...
13
14 /* RP global measurement buffer = context-local buffer */
15 SWCB_Bypass_P_D_Original = local_P_D;
16
17 if ( FALSE == SWCB_Bypass_P_D_Enable )
18 {
19 /* RP global buffer = context-local buffer */
20 SWCB_Bypass_P_D = local_P_D;
21 }
22
23 global_P_D = SWCB_Bypass_P_D;
24 }

[SWS_Rte_06055] d When rptLevel3 is enabled for a VariableDataPrototype

accessed by implicit semantics the RTE generator shall update the RP global mea-
surement buffer using the context-local buffer. c(SRS_Rte_00244)
[SWS_Rte_06056] d When rptLevel2 or rptLevel3 is enabled for a Variable-
DataPrototype accessed by implicit semantics and the RP enabler flag is dis-
abled the RTE generator shall write the value from the context-local buffer to the RP
global buffer. c(SRS_Rte_00244)
[SWS_Rte_06057] d When rptLevel2 or rptLevel3 is enabled for a Vari-
ableDataPrototype accessed by implicit semantics the RTE generator shall write
the value from the RP global buffer to the global master after the RP global
buffer is updated. c(SRS_Rte_00244)
[SWS_Rte_06058] d The RTE generator shall perform the above requirements
in the sequence [SWS_Rte_06055] [SWS_Rte_06056] [SWS_Rte_06057]. c
(SRS_Rte_00244)

4.9.4.7 Export

The RTE generator must describe the various buffers and flags created to support the
configured RptImplPolicy.rptPreparationLevel for a VariableDataProto-
type so that the information can be accessed by the RP system after RTE genera-
tion12 .
A generated RP buffer, flag, etc. is described by a separate McDataInstance with
a particular role, e.g. RP-GLOBAL-BUFFER, that describe its usage. The role can
describe the following:
1. RP global buffer.
2. RP enabler flag(s) (rptLevel2/rptLevel3).
12
To be fully used by an RPT system the information exported by the RTE generator may need sub-
sequent augmentation to add details that are not known to the RTE generator, e.g. address information.

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3. RP global measurement buffer (rptLevel3).

4. RP stimulation enabler flag
The McDataInstance includes a reference to the relevant FlatIn-
stanceDescriptor. This reference is the same one included in the McDataIn-
stance for the RTEs buffer and therefore allows RP tools to make an association
betwen the RTE managed buffers and the RP buffers/flags.

4.9.5 Service Based Prototyping

Access to the RP global buffers and RP global measurement buffers can

be implemented by using a service based ECU interface in which an additional RP
service component, such as an XCP on CAN or XCP on Ethernet service, is
added to the ECU application.
The integration of the service can be performed pre-build by means of source code
based integration, for example, by adding an XCP or custom BSW component, or
post-build by patching the binary code of an already compiled ECU image.
In a service based scenario data is sampled and/or stimulated at RP service
points. During either sampling or stimulation the data is read and/or written from the
memory associated with the VariableDataPrototype to/from a local buffer during
the execution of the RP service point and hence transferred to/from the RP tool.
Within the context of the RTE the data stimulated by the RP service points are the
RP global buffers and RP global measurement buffers however any data
that is measurable is potentially subject to reading.
A RP service point is simply a call of a RP service function that is provided
by the RP service component. The RP service function is responsible for
sampling (reading) and stimulating (writing) the bypass data. The action of sampling
may then trigger the RP system to perform the bypass (this may involve the commu-
nication of the sampled data to an external system for computation) ready for reading
when the stimulation occurs.

4.9.5.1 Rapid Prototyping Scenarios

The Extended Buffer Access method augments the RapidPrototypingScenario

to support service-based bypass. A RapidPrototypingScenario aggregates one
or more RptContainers and one or more RptProfiles.
RptProfile Each profile defines an RP service profile consisting of:
The permitted range of RP service point id defined as minService-
PointId to maxServicePointId.

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The C-Symbols of the RP service functions invoked before and after

the runnable entity.
RptContainer Each RptContainer defines the entity to be encapsulated
by calls to the RP service function. A single RptContainer instance can
reference a complete SW-C (in which case all invocations of its runnable entities
are encapsulated by calls to RP service functions), a single RTEEvent or
a single VariableDataPrototype.
An RptContainer can optionally define one or more explicitRptProfile-
Selection references. When present the references provide a list of RptPro-
files which needs to be applied when the RPT support is implemented. When
no explicitRptProfileSelection references are defined then all RptPro-
files defined in the RapidPrototypingScenario are applicable.
The RptExecutableEntityProperties within an RptContainer aggre-
gates information about the properties of the executable entity(s) to which the
RP service points apply. This includes rptServicePoint which defines
a switch for RP service point generation and thus permits profiles to define
variable preparation and/or service point support.
For each applicable RptProfile (i.e. selected through explicitRptProfileSe-
lection references or by the use of all profiles when no such references are present)
the RTE generator inserts calls to the RP service function around the invocation
of the runnable entity (or runnable entities) started by the RTEEvent referenced by
each aggregated RptContainer.

Example 4.34

As an example of how RptProfile and RptContainer interact, consider the follow-

ing scenario:
A RapidPrototypingScenario instance that aggregates a single RptPro-
file instance.
An RptProfile instance that aggregates two RP service functions:
servicePointSymbolPre defines ServiceFunc1_pre.
servicePointSymbolPost defines ServiceFunc1_post.
A single RptContainer instance (with no explicitRptProfileSelection
references) that:
Has zero explicitRptProfileSelection references.
References, using byPassPoint, a single RTEEvent Event1 that triggers
runnable re1.
The RTE would then generate:
1 ServiceFunc1_pre(<rptEventId>, <spId1>, <stim>);
2 re1();

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3 ServiceFunc1_post(<rptEventId>, <spId2>, <stim>);

Where:
The RTE event identifier, <rptEventId>, identifies the RTE event and is
within the range specified in the interval [minRptEventId. . .maxRptEventId)
of the RptExecutableEntityProperties.
The RP service point ids, <spId1> and <spId2>, identify the ser-
vice point and are within the interval [minServicePointId. . .maxService-
PointId) of the RptProfile.
<stim> is the RP stimulation enabler flag to control RP stimulation.

To extend Example 4.34, an additional RptProfile referencing RP service func-

tion, ServiceFunc2 (both pre- and post) is added to the RapidPrototypingSce-
nario.

Example 4.35

The RTE would then generate:

1 ServiceFunc1_pre(<rptEventId>, <spId1>, <stim>);
2 ServiceFunc2(<rptEventId>, <spId2>, <stim>);
3 re1();
4 ServiceFunc1_post(<rptEventId>, <spId3>, <stim>);
5 ServiceFunc2(<rptEventId>, <spId4>, <stim>);

Each RP service function use the same RTE event identifier, i.e.
<rptEvendId>, since all four calls wrap the same runnable invocation however each
uses a different RP service point id.

Multiple RptProfiles can lead to multiple RP service functions for the same
RTEEvent. All such calls are ordered alphabetically ([SWS_Rte_06061]) and have the
same RTE event identifier but different RP service point ids.

4.9.5.2 Service Functions

The RP service function is responsible for sampling the required data. The pa-
rameters of the RP service function do not include the data, instead, the param-
eters identify the RTE EVent and service point:
<rptEventId> RTE event identifier indicating the associated RTE Event.
This parameter is defined by the RptContainers RptExecutableEnti-
tyProperties and is therefore the same for all RptProfiles aggregated
within the RptContainer.

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<servicePointId> The RP service point id is used by the RP service

component to identify the particular service point.
This parameter is defined by the RptProfile and is therefore differentfor each
profile.
<stimEnabler> Calibratable value to control RP Stimulation. This parameter is
optional, if not configured zero is passed to the RP service function.
This parameter is defined by the RptProfile and is therefore differentfor each
profile.
[SWS_Rte_06059] d A RP service point id shall have the type uint16. c
(SRS_Rte_00244)
[SWS_Rte_06060] d An invocation of a RP service function shall conform to the
prototype:
void <RptServiceSymbol>( uint16 <rptEventId>,
uint16 <servicePointId>
uint8 <stimEnabler> );

Where <RptServiceSymbol> is specified as the RptProfile.service-

PointSymbolPre or RptProfile.servicePointSymbolPost and <servi-
cePointid> is the RP service point id. The <stimEnabler> provides
run-time control of RP stimuation. c(SRS_Rte_00244)
Note that given the defined type the range of RP service point id is [0 . . . 65535].
[SWS_Rte_06061] d For all RP service function defined by the input configura-
tion the RTE generator shall invoke the RP service function in alphabetical order.
c(SRS_Rte_00244)
To avoid ambiguity two RptProfiles are not permitted to declare identical <RptSer-
viceSymbol>s.
[SWS_Rte_06076] d The RTE generator shall reject configurations where RptPro-
file.servicePointSymbolPre or RptProfile.servicePointSymbolPost are
not globally unique. c(SRS_Rte_00244)
The pre and post positions provide the ability to differentiate RP service points
that are invoked before and after runnable invocation if this is required. The two calls
will have a common RP event ids but different RP service point ids.
To permit one RptProfile to describe variable preparation and/or service points the
rptServicePoint within the RptContainer defines an enable/disable switch:
[SWS_Rte_06120] d The RTE generator shall create calls to RP service func-
tions defined by an RptProfile only when the RptContainers rptService-
Point parameter is enabled. c(SRS_Rte_00244)

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4.9.5.2.1 RP Stim Enabler

The RP stimulation enabler flag parameter provides runtime control of RP

stimulation by the RP service function. Example 4.36 shows the same value
passed as the <stimEnabler> parameter to both pre- and post RP service
points.

Example 4.36
1 ServiceFunc1_pre(<rptEventId>, <spId1>, <stimEnabler>);
2 if (! <rp_disabler_flag>)
3 {
4 re1();
5 }
6 ServiceFunc1_post(<rptEventId>, <spId2>, <stimEnabler>);

The <stimEnabler> parameter has a fixed datatype of uint8 and is, when config-
ured, exported into RptSupportData as calibratable.
[SWS_Rte_06111] d When RptProfile.stimEnabler is rptEnablerRam or
rptEnablerRom the value of the <stimEnabler> shall be passed as the third pa-
rameter of the RP service function invocation. c(SRS_Rte_00244)
[SWS_Rte_06112] d When RptProfile.stimEnabler is none the third parameter
of the RP service function invocation shall be 0 (zero). c(SRS_Rte_00244)
[SWS_Rte_06115] d The RTE generator shall reject configurations where the Rpt-
Profile.stimEnabler is rptEnablerRamAndRom. c(SRS_Rte_00244)
Each RP service point has its own <stimEnabler> parameter. As a conse-
quence, there are as many <stimEnabler> parameters as there are enabled RP
service points, i.e. 1000 Service points with enabled RptProfile.stimEnabler
will result in 1000 calibratable <stimEnabler> parameters.
As well as instantiating the <stimEnabler> parameter the RTE generate must output
information in the generated RptSupportData to enable down-stream tools to locate
the calibratable parameter.
[SWS_Rte_06110] d When RptProfile.stimEnabler is not none the <sti-
mEnabler> description shall be exported in the RptSupportData. c(SRS_Rte_00244)
The calibratable <stimEnabler> parameters are accessed by MC or RP tools. To
enable the identification of different parameters the name of the generated calibratable
value includes the name of the hooked RTE/BSW Event.
[SWS_Rte_06109] d The name of generated <stimEnabler> parameter shall in-
clude the name of hooked SwComponentPrototype and RTEEvent/BswEvent to
be referenced. c(SRS_Rte_00244)

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4.9.5.3 Integration

There are two possibilities on how to integrate a RP service point pre-build; either
as SWC Internal inserted by the SWC developer or as RTE Assigned created by the
RTE generator.
SWC Internal In this scenario the RP service function signature of the BSW that
provides the service is known by the SWC developer.
The SWC developer implements the RP service function calls at required
positions within the RunnableEntity code, typically one right before and a sec-
ond one right after every area to be prepared for bypassing. This mechanism is
typically used in migration scenarios where a single RunnableEntity contains
multiple functionality.
The SWC developer has to document the integrated RP service point,
whether used for sampling or stimulating RP data, in the context of the
RunnableEntity information of the AUTOSAR SWC description.
In this scenario there is no requirement for the RTE generator to insert RP ser-
vice point calls within generated code. In addition, the RTE generator is not
responsible for assignment of RP service point ids instead these are se-
lected when the RP service functions invocations are created. However
the RTE generator must ensure that the description of the SWCs service hooks
is exported for subsequent tools.
RTE Assigned In this scenario the RTE generator evaluates the SWC descriptions
for required SWC RP service points and adds them at dedicated positions
before and after the invocation of a RunnableEntity.
In the following discussion the positions for the invocation of SWC RP service
points is defined by the following pseudo-code for the invocation of a runnable
entity:

Example 4.37
1 [Point A]
2 <update context-local buffers>
3 <VFB Runnable Start>();
4 [runnable invocation]
5 <VFB Runnable Return>();
6 [Point B]
7 <update global buffers>
8 <RTE notifications>

[SWS_Rte_06064] d When an RptContainer references a SwComponent-

Prototype, the RTE generator shall insert RP service points at both
[Point A] and [Point B] for each RptProfile for all applicable RTE-
Event/BswEvent(s). c(SRS_Rte_00244)

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[SWS_Rte_06089] d When an RptContainer references an RTEEvent/Bsw-

Event in a SwComponentPrototype, the RTE generator shall insert RP ser-
vice points at both [Point A] and [Point B] for each applicable Rpt-
Profile. c(SRS_Rte_00244)
[SWS_Rte_06090] d When an RptContainer references an Variable-
DataPrototype, the RTE generator shall insert RP service points at
both [Point A] and [Point B] for each applicable RptProfile for each
RTEEvent/BswEvent that can read/write the VariableDataPrototype. c
(SRS_Rte_00244)
The invocation of a RunnableEntity may be conditional, for example, as a re-
sult of a execution pre-scaling when multiple RTEEvents are mapped to the task.
If so then the execution of the RP service points has the same conditionality.
[SWS_Rte_06065] d The RTE generator shall invoke the SWC RP service
points at [Point A] and [Point B] only if the ExecutableEntity is sub-
ject to invocation at [runnable invocation]. c(SRS_Rte_00244)
Note that the invocation of the ExecutableEntity may still be subject to omis-
sion if the execution would conflict with the bypass functionality; see below.

4.9.5.4 Service Point IDs

The RTE input configuration may include SWCs from multiple suppliers that each con-
tain SWC-Internal RP service point ids. The same RP service point id
must never be used twice within the same ECU application and therefore the RTE
generator is required to reject input configurations that result in duplications it is not
permitted to remap RP service point ids.
[SWS_Rte_06066] d The RTE generator shall reject configurations that contain SWCs
with duplicate SWC-Internal RP service point ids. c(SRS_Rte_00244)
In addition to SWC-Internal RP service point ids the RTE generator is required
to assign RP service point ids used for RTE hooks. To avoid conflicts with SWC-
Internal RP service point ids the input configuration describes permitted range
for IDs for such RP service points.
To enable Pre and Post RP service point invocations to be distinguished differ-
ent RP service point id are used a unique ID is used for each RP service
point invocation.
[SWS_Rte_06067] d The RTE generator shall assign the next unused RP service
point id for the RP service point invocations at [Point A] and [Point B]
from the permitted range. c(SRS_Rte_00244)
[SWS_Rte_06068] d The permitted range is defined as minServicePointId to
maxServicePointId inclusive. c(SRS_Rte_00244)

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The RP service point ids assigned by the RTE generator are documented in the
generated configuration as part of the RptProfile. See Example 4.37 for locations
of [Point A] and [Point B].

4.9.5.5 Conditional RunnableEntity Invocation

In addition to data bypass the invocation of the RP service function at [Point

A] (see Example 4.37) may trigger computation that replaces the execution of the
original RunnableEntity either because the execution would be redundant or have
unwanted side effects. Thus it is possible to make the execution conditional and thus
the [runnable invocation] element of the pseudo-code above is replaced by:

Example 4.38
1 if ( FALSE == <RPRunnableDisablerFlag> )
2 {
3 [VFB Trace event - runnable start]
4 symbol() /* runnable invocation */
5 [VFB Trace event - runnable return]
6 }

The conditional execution of the original symbol is unrelated to the normal condi-
tionality of the invocation, e.g. due to the presence of prescalers created by the RTE
generator when multiple RTEEvents are mapped to the task. Mofication, e.g. incre-
ment, of the prescalers should occur even when the RP runnable disabler flag
is TRUE. Example 4.39 shows the combination of RP runnable disabler flag
with RTE generated conditional execution that invokes the runnable once every five
task activations.

Example 4.39
1 if ( --Rte_RunnableDivide == 0 )
2 {
3 Rte_RunnableDivide = 5u;
4 if ( FALSE == <RPRunnableDisablerFlag> )
5 {
6 [VFB Trace event - runnable start]
7 symbol() /* runnable invocation */
8 [VFB Trace event - runnable return]
9 }
10 }

[SWS_Rte_06069] d When the RP rptExecutionControl is conditional the

RTE generator shall invoke the symbol only if the runnable disabler flag is FALSE. c
(SRS_Rte_00244)

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Note that there is no ability to control the execution of RTEEvents since the intent is to
avoid the side effects of the runnable whatever the triggering event therefore the same
conditionality applies to all uses of the runnable.
[SWS_Rte_06077] d For each conditional in the input rptExecutionControl
the RTE generator shall document the generated RP runnable disabler flag in
the exported RptSupportData. c(SRS_Rte_00244)

4.9.5.6 Interaction with RTE-Managed buffers

The <update context-local buffers> pseudo-code is responsible for manip-

ulating the RTE-managed context-local buffers (i.e. those used for implicit communi-
cation) based on updates performed by the RP service function invocations
it must therefore happen after the invocations at [Point A] and [Point B] ((see
Example 4.37 for locations of [Point A] and [Point B]).
The <update context-local buffers> pseudo-code uses the RP global
buffers to update the context-local buffers and thus, potentially, use values provided
by the RP service function [Point A].
As an example of rptLevel3 bypass (which includes the ability to enable/disable
bypass at run-time) the <update context-local buffers> pseudo-code could
be implemented as follows:

Example 4.40
1 /* RP global measurement buffer = global master data */
2 SWCB_Bypass_P1_D_Original = global_P1_D;
3
4 if ( FALSE == SWCB_Bypass_P1_D_Enable )
5 {
6 /* Bypass disabled */
7 /* RP global buffer = global master data */
8 SWCB_Bypass_P1_D = SWCB_Bypass_P1_D_Original;
9 }
10
11 /* context-local buffer */
12 local_P1_D = SWCB_Bypass_P1_D;

Similarly the <update global buffers> pseudo-code that follows [Point B]

uses the RTE-managed context-local buffers to update the RTE-managed global
buffers with either RP global buffer values or context-local values (if using
rptLevel2 or rptLevel3 bypass which include run-time bypass enable/disable).
Consequently the <update global buffers> must occur after RP service
point [Point B] but before configured notifications have been made at <RTE no-
tifications>.

Example 4.41

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1 /* RP global measurement buffer = context-local buffer */

2 SWCB_Bypass_P2_D_Original = local_P2_D;
3
4 if ( FALSE == SWCB_Bypass_P2_D_Enable )
5 {
6 /* Bypass disabled */
7 /* RP global buffer = context-local buffer */
8 SWCB_Bypass_P2_D = local_P2_D;
9 }
10
11 global_P2_D = SWCB_Bypass_P2_D;

4.9.5.7 Export

For both SWC-Internal and RTE-Assigned RP service point ids the RTE gener-
ator must describe the invoked RP service functions so that the information can
be accessed by the RP system after RTE generation13 .
The exported RTE McSupportData is used to describe the generated configuration and
consists of:
RptSupportData describing RP execution contexts
Invoked RP service points (whether SWC-Internal or RTE-Assigned).
Relationship between RptExecutableEntityEvent and pre-functional RP
service point.
Relationship between RptExecutableEntityEvent and post-functional RP
service point.
Relationship between RptExecutableEntityEvent and RP runnable
disabler flag.
In the following requirements [Point A] and [Point B] refer to locations defined
in Example 4.37.
[SWS_Rte_06080] d When a RunnableEntity has implicit read access to a Vari-
ableDataPrototype for which RP service points are generated according to
[SWS_Rte_06064] then the RTE generator shall export rptServicePointPre at the
according RptExecutableEntityEvent documenting the RP service points
generated at [Point A]. c(SRS_Rte_00244)
[SWS_Rte_06081] d When a RunnableEntity has implicit write access to a
VariableDataPrototype for which RP service points are generated accord-
ing to [SWS_Rte_06064] then the RTE generator shall export rptServicePoint-
13
To be fully used by an RPT system the information exported by the RTE generator may need sub-
sequent augmentation to add details that are not known to the RTE generator, e.g. address information.

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Post at the according RptExecutableEntityEvent documenting the RP ser-

vice points generated at [Point B]. c(SRS_Rte_00244)
[SWS_Rte_06082] d When a RunnableEntity has explicit read access to a
VariableDataPrototype for which RP service points are generated accord-
ing to [SWS_Rte_06064] then the RTE generator shall export rptServicePoint-
Post at the according RptExecutableEntityEvent documenting the RP ser-
vice points generated at [Point B]. c(SRS_Rte_00244)
[SWS_Rte_06083] d When a RunnableEntity has explicit write access to a
VariableDataPrototype for which service points are generated according to
[SWS_Rte_06064], [SWS_Rte_06089] or [SWS_Rte_06090] then the RTE gener-
ator shall export rptServicePointPre at the according RptExecutableEn-
tityEvent documenting the RP service points generated at [Point A]. c
(SRS_Rte_00244)
[SWS_Rte_06084] d When a RunnableEntity has explicit read or write access
to a VariableDataPrototype for which service points are generated according
to [SWS_Rte_06064], [SWS_Rte_06089] or [SWS_Rte_06090] then the RTE gen-
erator shall export rptServicePointPre at the according RptExecutableEn-
tityEvent documenting the RP service points generated at [Point A]. c
(SRS_Rte_00244)
[SWS_Rte_06085] d When a RunnableEntity has explicit read or write access to a
VariableDataPrototype for which RP service points are generated accord-
ing to [SWS_Rte_06064], [SWS_Rte_06089] or [SWS_Rte_06090] then the RTE gen-
erator shall export rptServicePointPost at the according RptExecutableEn-
tityEvent documenting the RP service points generated at [Point B]. c
(SRS_Rte_00244)

4.10 Data Transformation

Transformers enable AUTOSAR systems to use a data transformation mechanism to
linearize and transform data. They can be concatenated to transformer chains and
are executed by the RTE for inter-ECU communication which is configured to be trans-
formed. The input of the first transformer in the chain gets the data from the RTE.
Each following transformer uses the output of the preceding transformer as input. All
transformers following the first one then have a generic signature with just a byte array
as IN and OUT parameter. Such an architecture could be used to design systems,
where you can flexibly add functionality like safety or security protection to a serialized
stream.
The transformers for inter-ECU communication are configured in the System Descrip-
tion.
Furthermore the RTE can execute transformers for intra-ECU communication to trans-
form different representations of data structures between software components or ba-

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sic software modules within one ECU. Transformers for intra-ECU communication are
restricted to unqueued S/R communication. In addition no transformer chains are appli-
cable. Those limitations are formulated since for the currently known use-cases there
is no need for introducing this functionality.
The execution of the transformers and the necessary buffer handling is coordinated by
the RTE.

4.10.1 Execution of Transformer

4.10.1.1 Transformer for inter-ECU communication

[SWS_Rte_08794] d The RTE shall execute data transformation for inter-ecu commu-
nication if a DataTransformation is referenced by an ISignal that references a
SystemSignal which
1. is referenced by a SenderReceiverToSignalMapping, ClientServer-
ToSignalMapping or TriggerToSignalMapping
2. or is referenced by a SystemSignalGroup in the role transformingSys-
temSignal if the SystemSignalGroup is referenced by a SenderReceiver-
ToSignalGroupMapping
c(SRS_Rte_00247)
Note:
In case of fan-in of inter-ECU communication where the ISignals use different data
transformations, the RTE has to ensure that it executes the correct transformer chain
that belongs to exactly that ISignal. This could be achieved for example by remem-
bering within the Com callback which DataTransformation belongs to the received
data.
[SWS_Rte_08795] d The RTE shall execute all transformers of a transformer chain
in their execution order for queued (event semantics) sender-receiver communication
even when the queue is empty (because no data are available) if executeDespite-
DataUnavailability of DataTransformation is enabled and the Rte_Receive
API has non-blocking characteristics according to [SWS_Rte_01288]. The input to
all the transformers in the chain shall be NULL with a dataLength equal to 0. c
(SRS_Rte_00247)
Please note: This functionality is only available on the receiving side of queued
Sender/Receiver communication. Furthermore, if Signal fan-in is used, no signal shall
have the attribute executeDespiteDataUnavailability set to true (see [con-
str_3208]).
There are two main cases considered when executeDespiteDataUnavailabil-
ity is important: an empty queue in case of queued S/R communication and errors in
the COM stack so that the RTE doesnt get data from Com or LdCom.

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[SWS_Rte_08796] d For VariableAccesses in the roles dataReceivePointB-

yArgument, dataReceivePointByValue or dataSendPoint the RTE shall exe-
cute data transformation from within the called RTE API. c(SRS_Rte_00247)
In case of explicit sender-receiver communication, the execution of the data transfor-
mation takes place inside the RTE API which is called by the SWC.
In case of implicit sender-receiver communication, the execution of the data transfor-
mation takes place on sender side between execution of the runnable and handover of
the data to the Com stack and on receiver side between reception of the data from the
Com stack and start of the runnable.
[SWS_Rte_08570] d For VariableAccesses in the dataReadAccess role the RTE
shall execute data transformation after reception of the data from the Com stack and
before start of the runnable/coherency group. c(SRS_Rte_00247)
[SWS_Rte_08571] d For VariableAccesses in the dataWriteAccess role the RTE
shall execute data transformation after termination of the runnable/coherency group
and before handing the data over to the Com stack. c(SRS_Rte_00247)
[SWS_Rte_08596] d For ExternalTriggeringPoints the RTE shall execute data
transformation from within the called RTE API Rte_Trigger. c(SRS_Rte_00247)
In case of external trigger communication, the execution of the data transformation
takes place inside the RTE API which is called by the SWC.
[SWS_Rte_08797] d If transformer is configured to have access to original data, the
RTE shall ensure that these are unchanged until the end of the execution of the trans-
former chain. c(SRS_Rte_00247)

4.10.1.2 Transformer for intra-ECU communication

[SWS_Rte_08105] d The RTE shall execute data transformation for intra-ecu commu-
nication if a DataTransformation is referenced by a DataPrototypeMapping. c
(SRS_Rte_00253)
[SWS_Rte_08107] d For VariableAccess in the roles dataReceivePointB-
yArgument, dataReceivePointByValue or dataSendPoint the RTE shall ex-
ecute data transformation from within the called RTE API. c(SRS_Rte_00253)
In case of implicit sender-receiver communication, the execution of the data
transformation takes place on sender side after execution of the RunnableEn-
tity/BswSchedulableEntity and on receiver side before the start of the
RunnableEntity/BswSchedulableEntity.
[SWS_Rte_08108] d For VariableAccess in the dataReadAccess role the RTE
shall execute data transformation before start of the RunnableEntity/BswSchedu-
lableEntity. c(SRS_Rte_00253)

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[SWS_Rte_08109] d For VariableAccess in the dataWriteAccess role the

RTE shall execute data transformation after termination of the RunnableEn-
tity/BswSchedulableEntity. c(SRS_Rte_00253)

4.10.2 Transformer Chains

[SWS_Rte_08798] d The RTE shall support transformer chains (DataTransfor-

mation) with a length up to 255 transformers TransformationTechnology. c
(SRS_Rte_00247)
[SWS_Rte_08110] d The RTE shall support transformer chains (DataTransforma-
tion) only for inter-ecu data transformation. c(SRS_Rte_00247)
[SWS_Rte_08799] d The RTE on sender side shall execute the transformers of the
chain in order. c(SRS_Rte_00247)
[SWS_Rte_08588] d The RTE on receiver side shall execute the retransformers of the
chain in reverse order. c(SRS_Rte_00247)
[SWS_Rte_08589] d The RTE on client side shall execute the transformers of the chain
in order for all IN and IN/OUT arguments of the server call. c(SRS_Rte_00247)
[SWS_Rte_08590] d The RTE on server side shall execute the retransformers of
the chain in reverse order for all IN and IN/INOUT arguments of the server call. c
(SRS_Rte_00247)
Both the IN and the IN/OUT arguments are transferred from the client to the server.
[SWS_Rte_08515] d The RTE on server side shall execute the transformers of the
chain in order for all IN/OUT and OUT arguments and return code of the server opera-
tion. c(SRS_Rte_00247)
[SWS_Rte_08516] d The RTE on client side shall execute the retransformers of the
chain in reverse order for all IN/OUT and OUT arguments and return code of the server
operation. c(SRS_Rte_00247)
All the IN/OUT arguments, OUT arguments and the return value are transferred from
the server to the client. The IN/OUT arguments have to be included in both communi-
cation directions because these arguments represent bi-directional communication.
[SWS_Rte_08517] d If data conversion does not apply, the input of the first transformer
(in execution order) on sender side for sender-receiver communication shall be the data
from the VariableDataPrototype by the SWC. c(SRS_Rte_00247)
[SWS_Rte_04540] d If data conversion applies, the input of the first transformer (in
execution order) on sender side for sender-receiver communication shall be the con-
verted data from the VariableDataPrototype by the SWC. c(SRS_Rte_00247)

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[SWS_Rte_08518] d The input for the first transformer (in execution order) on receiver
side for inter-ECU sender-receiver communication shall be the received data from the
Com stack. c(SRS_Rte_00247)
[SWS_Rte_08519] d The input for the first transformer (in execution order) on client
side for client-server communication shall be the data from the ClientServerOper-
ation by the SWC. c(SRS_Rte_00247)
[SWS_Rte_08520] d The input for the first transformer (in execution order) on server
side for the request of a client-server communication shall be the received data from
the Com stack. c(SRS_Rte_00247)
[SWS_Rte_08521] d The input for the first transformer (in execution order) on server
side for the response of a client-server communication shall be the data from the
ClientServerOperation by the SWC. c(SRS_Rte_00247)
[SWS_Rte_08522] d The input for the first transformer (in execution order) on client
side for the response of a client-server communication shall be the received data from
the Com stack. c(SRS_Rte_00247)
The input for the first transformer (in execution order) on the Trigger Source side for
external trigger communication contains no payload data (See [SWS_Xfrm_00102] in
[26, ASWS Transformer General]).
[SWS_Rte_08597] d The input for the first transformer (in execution order) on Trigger
Sink side for external trigger communication shall be the received data from the Com
stack. c(SRS_Rte_00247)
[SWS_Rte_08523] d The output of the last transformer (in execution order) on sender
side for inter-ECU sender-receiver communication shall be transmitted to the Com
stack. c(SRS_Rte_00247)
[SWS_Rte_08524] d If data conversion does not apply, the output of the last trans-
former (in execution order) on receiver side for sender-receiver communication shall
be handed over to the SWC. c(SRS_Rte_00247)
[SWS_Rte_04541] d If data conversion applies, the RTE shall convert the output of the
last transformer (in execution order) on receiver side for sender-receiver communica-
tion before handing it over to the SWC. c(SRS_Rte_00247)
[SWS_Rte_08525] d The output of the last transformer (in execution order) on client
side for the request of a client-server communication shall be transmitted to the COM
or Com stack. c(SRS_Rte_00247)
[SWS_Rte_08598] d The output of the last transformer (in execution order) on Trigger
Source side for external trigger communication shall be transmitted to the Com stack.
c(SRS_Rte_00247)
[SWS_Rte_08599] d On Trigger Sink side for external trigger communication, the RTE
shall trigger the execution of the triggered RunnableEntity if no transformer in the
transformer chain returns a hard error. c(SRS_Rte_00247)

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This means that only the RunnableEntity for the TransformerHardErrorEvents

but not the RunnableEntitys for ExternalTriggerOccurredEvents shall be
triggered if a hard transformer error occurred.
[SWS_Rte_08526] d On server side for client/server communication, the RTE shall
trigger the execution of the triggered RunnableEntity and hand the output of the
last transformer over to the triggered RunnableEntity if and only if no transformer
in the transformer chain returns a hard error. c(SRS_Rte_00247)
[SWS_Rte_08527] d The output of the last transformer (in execution order) on server
side for the response of a client-server communication shall be transmitted to the Com
stack. c(SRS_Rte_00247)
[SWS_Rte_08528] d The output of the last transformer (in execution order) on client
side for the response of a client-server communication shall be handed over to the
SWC. c(SRS_Rte_00247)
[SWS_Rte_08529] d The output of a non-last transformer (in execution order) in a
transformer chain shall be the input for the next transformer in the execution order of
the chain. c(SRS_Rte_00247)
If there is a signal fanout, it is possible to optimize the execution of the transformers. If
multiple transformer chains in case of a signal fanout have the same set of transform-
ers at the beginning of the transformer chain, the RTE optimizes and executes those
transformers only once for all transformer chains together. The result can be shared
between all transformers chains. This is only possible if no ComBasedTransformer
is involved.
[SWS_Rte_08530] d If the XfrmImplementationMapping (see [ECUC_Xf_00001])
maps multiple transformers (which are used to transform different ISignals) to the
same BswModuleEntry, the RTE shall execute those first transformers only once
using the mapped BswModuleEntry and take the result as input for the further trans-
formers for those ISignals. c(SRS_Rte_00247)

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Configuration Generated Code

Sending Can be Sending

Application Application
SWC
combined SWC

Transformer 1 Transformer 1 Transformer 1

Transformer 2 Transformer 3 Transformer 2 Transformer 3

Transformer 4 Transformer 4

Transformer 5 Transformer 5

Transformer 6 Transformer 6

Receiving Receiving
ISignal1 Application ISignal2 ISignal1 Application ISignal2
SWC SWC

Figure 4.58: Example of a transformer optimization

4.10.3 Buffer Handling

[SWS_Rte_08531] d The RTE shall provide the buffer to the transformers which con-
tains their input data. c(SRS_Rte_00248)
[SWS_Rte_08532] d If the attribute inPlace in the BufferProperties of a Trans-
formationTechnology is not set, the RTE shall provide a separate buffer to the
transformers in which they can write their output. c(SRS_Rte_00248)
If the attribute inPlace in the BufferProperties of a TransformationTech-
nology is set, the RTE doesnt need to provide a separate output buffer to the trans-
former because with inplace buffer handling the transformer will read the input data
from a buffer and writes its output into the same buffer. For this, the RTE hands over
to the transformer a pointer and a length which represents the buffer both for input an
output.
[SWS_Rte_08533] d The RTE shall provide a buffer to the transformer for the trans-
formers output. c(SRS_Rte_00248)
[SWS_Rte_08534] d The RTE shall calculate the needed buffer size for the output
buffer size using the formula specified in bufferComputation. c(SRS_Rte_00248)

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[SWS_Rte_08535] d The RTE shall interprete the formula specified in the Com-
puScale in the role bufferComputation as a function: OutputBuf f erLength =
CompuScale(InputBuf f erLength) c(SRS_Rte_00248)
[SWS_Rte_03867] d The RTE shall calculate the InputBuf f erLength (used for output
buffer calculation; see [SWS_Rte_08535]) the following way:
For External Triggers:
The InputBuf f erLength shall be 0.
For Sender/Receiver communication:
The InputBuf f erLength shall be equal to the size needed for VariableDat-
aPrototype of the dataElement of the SenderReceiverInterface that
shall be transformed.
For Client/Server communication:
The InputBuf f erLength shall be the sum of
the size of the TransactionHandle
for the request: the sizes of the VariableDataPrototypes of all
IN and INOUT arguments of the ClientServerOperation of the
ClientServerInterface
or for the response:
the sizes of the VariableDataPrototypes of all INOUT and OUT
arguments of the ClientServerOperation of the ClientServer-
Interface
1 Byte for the return code of the ClientServerOperation of the
ClientServerInterface if at least one possibleError is defined
for the ClientServerInterface.
c(SRS_Rte_00248)
The BufferProperties contain a CompuScale in the role bufferComputation
which describes the computation formula how to create the size of the output buffer
depending of the size of the input buffer. Because transformer chains are modeled for
the sending side, the formula has to be inversed for the receiving side.
The input of this formula is the size of the AUTOSAR data type of the interface.
[SWS_Rte_08536] d The RTE shall consider the headerLength information in the
BufferProperties if inPlace in the BufferProperties is set:
On the sending side (transformation) the RTE shall increase the buffer from the
beginning by the size given in headerLength.
On the receiving side (retransformation) the RTE shall decrease the buffer from
the beginning by the size given in headerLength.
c(SRS_Rte_00248)

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If a transformer with in-place buffering on the sending side for example is configured to
add a header, the RTE is responsible for handing over a buffer which is large enough.
So the buffer grows beween two transformers if the second of those adds a header
with in-place buffering. To realize this, the RTE can have a buffer which stays the same
size and is large enough to hold the output of the last transformer but only subsets of
the buffer are handed over to the transformers depending on the buffer size needs of
the specific transformers in the chain. This can be achieved by pointers. A free space
in front of the existing data to insert the header there can be provided by the RTE by
descreasing the pointer address which is handed over to the transformer. This adds
a free space to the beginning of the buffer. It can be determined how long the header
shall be by headerLength of BufferProperties.
The corresponding retransformer on the receiving side (which implements the inverse
operation) has to remove the header. For this, the transformer simply has to make sure
that no part of its output is inside the place of the header which shall be removed. From
this transformer to the next one, the RTE increases the pointer address by the length
of the header and hence removes the header using that mechanism.
[SWS_Rte_08537] d If the attribute inPlace in the BufferProperties of a Trans-
formationTechnology is set and a fanout in the transformer optimization is di-
rectly done before this transformer, the RTE shall duplicate the buffer beforehand. c
(SRS_Rte_00248)
[SWS_Rte_08550] d The RTE shall hand over the original data provided by a software
component to a transformer on the sender side if the attribute needsOriginalData
is set to true. c(SRS_Rte_00248)

4.10.4 Interfaces to Transformer

The interfaces of the transformers depend on the transformer chain in which the trans-
former is placed and the transformed data. They are specified in [26, ASWS Trans-
former General].
Also see chapter 5.10.4.
[SWS_Rte_08538] d The RTE shall determine which data are passed up from a trans-
former to the SWC by using the PortInterfaceMapping or ISignal.Transfor-
mationISignalProps. DataPrototypeTransformationProps.networkRep-
resentationProps (See Chapter 4.3.6.2. c(SRS_Rte_00247)

4.10.5 Error Handling

[SWS_Rte_08539] d The RTE shall evaluate the return codes of transformers. c

(SRS_Rte_00249)
Transformers have a fixed set of errors depending on their transformer class. Each
transformer of a transformer class can only produce those errors.

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Errors can be soft errors and hard errors. Soft errors correspond to warnings and hard
errors stop the execution of the transformer chain. For client server communication it
is possible on the server side to trigger an autonomous error reaction which generates
the response of the client server communication automatically without involvement of
any runnable.
[SWS_Rte_08540] d The RTE shall continue with the execution of a transformer chain
if a transformer returns a soft error. c(SRS_Rte_00249)
[SWS_Rte_08541] d The RTE shall abort the execution of a transformer chain if a
transformer returns a hard error and executeDespiteDataUnavailability of the
DataTransformation is set to false. c(SRS_Rte_00249)
[SWS_Rte_08424] d The RTE shall continue with the execution of a transformer chain
if a transformer returns a hard error and executeDespiteDataUnavailability of
the DataTransformation is set to true. c(SRS_Rte_00249)
A transformer shall not modify its output buffer, when it returns a hard error to the RTE
(see [SWS_Xfrm_00051]).
To return the transformer errors to the runnables, the RTE APIs which can trigger
transformer executions have a parameter which is written by the RTE and read by the
SWC if the attribute errorHandling of PortAPIOption is set to transformer-
ErrorHandling.
[SWS_Rte_08558] d If a transformer which doesnt transform the request of a client
server communication on the server side (i.e., a transformer that either transforms the
request of a client server communication on the client side or transforms the response
of a client server communication or transforms an sender receiver communication)
returns a hard error, the Rte shall notify this hard error to the runnable which called the
RTE API that triggered the transformer execution. c(SRS_Rte_00249)
[SWS_Rte_07417] d If a transformer which transforms the request of a client server
communication on the server side returns a hard error, the Rte shall not trigger the
assigned OperationInvokedEvents for the server runnables. c(SRS_Rte_00249)
[SWS_Rte_07418] d If a transformer which transforms the request of a client server
communication on the server side returns a hard error, the Rte shall trigger the as-
signed TransformerHardErrorEvents. c(SRS_Rte_00249)
[SWS_Rte_07419] d If a transformer which transforms the request of a client server
communication on the server side returns a hard error, the transformerClass is
equal to serializer and csErrorReaction is set to autonomous, the Rte shall
trigger an autonomous error reaction. c(SRS_Rte_00249)
[SWS_Rte_07420] d For an autonomous error reaction the Rte shall execute the trans-
former chain of the response of the client server communication on the server side with
the following arguments:
TransactionHandle shall be handed over in an unaltered fashion

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As return value the error code of the transformer which issued the hard error shall
be used
All parameters passed by value shall be equal to 0
All parameters passed by reference shall be equal to NULL_PTR
c(SRS_Rte_00249)
Note: The result of this executed transformer chain can be treated by the Rte like a
regular response.
[SWS_Rte_08559] d If no transformer in the transformer chain returned a hard error
and at least one transformer returned a soft error, the Rte shall notify the first soft error
(in transformer execution order) to the SWC. c(SRS_Rte_00249)
[SWS_Rte_08584] d If multiple custom transformers in a transformer chain (Trans-
formationTechnology with transformerClass set to custom) produce more
than one error and all errors are soft errors, the RTE shall hand over to the SWC
the first soft error of all custom transformers (in execution order). c(SRS_Rte_00249)
[SWS_Rte_08585] d If multiple custom transformers in a transformer chain (Trans-
formationTechnology with transformerClass set to custom) produce more
than one error and on of those is a hard error, the RTE shall hand over to the SWC
this hard error (which caused the abortion of the execution of the transformer chain). c
(SRS_Rte_00249)

4.10.6 COM Based Transformer

The COM Based Transformer approach is an alternative transformation handling which

has several aspects:
the first transformer is the COM Based Transformer [23] for the serialization of
data,
the further transformers are invoked normally and enhance the array representa-
tion of the data element,
the handling of the transformed data towards the COM Module [3] is done via a
specific array based signal group API.
The COM Based Transformer [23] serializes the data elements into the array repre-
sentation exactly as the COM module would have done it.
The System Template [8] provides means to define which data elements shall be han-
dled by the COM Based Transformer and - via the communication matrix section - also
how the data shall be serialized. This is the basis for the COM modules configuration
and COM Based Transformer behavior.
The RTE interacts with the COM module via dedicated array based signal group APIs
for sending and receiving the transformed data.

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5 RTE Reference
Everything should be as simple as possible, but no simpler.
Albert Einstein

5.1 Scope
This chapter presents the RTE API from the perspective of AUTOSAR applications
and basic software the same API applies to all software whether they are AUTOSAR
software-components or basic software.
Section 5.2 presents basic principles of the API including naming conventions and
supported programming languages. Section 5.3 describes the header files used by the
RTE and the files created by an RTE generator. The data types used by the API are
described in Section 5.5 and Sections 5.6 and 5.7 provide a reference to the RTE API
itself including the definition of runnable entities. Section 5.11 defines the events that
can be monitored during VFB tracing.

5.1.1 Programming Languages

The RTE is required to support components written using the C and C++ programming
languages [SRS_Rte_00126] as well as legacy software modules. The ability for mul-
tiple languages to use the same generated RTE is an important step in reducing the
complexity of RTE generation and therefore the scope for errors.
[SWS_Rte_01167] d The RTE shall be generated in C. c(SRS_Rte_00126)
[SWS_Rte_01168] d All RTE code, whether generated or not, shall conform to the
MISRA C standard [27]. In technically reasonable, exceptional cases MISRA viola-
tions are permissible. Except for MISRA rules #5.1 to #5.5 and and directive #1.1,
such violations shall be clearly identified and documented. Specified MISRA violations
are defined in Appendix C. In realistic use cases, the RTE will generate C identifiers
(functions, types, variables, etc) whose name will be longer than the maximum size
supported by the MISRA C standard (rules #5.1 to #5.5 and directive #1.1). Users
should configure the RTE to indicate the maximum C identifiers size supported by
their tool chain to make sure that no issues will be caused by these MISRA violations.
c(SRS_BSW_00007)
Specified MISRA violations are defined in Appendix C.
In realistic use cases, the RTE will generate C identifiers (functions, types, variables,
etc) whose name will be longer than the maximum size supported by the MISRA C
standard. Users should configure the RTE to indicate the maximum C identifiers size
supported by their tool chain to make sure that no issues will be caused by these
MISRA violation.

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[SWS_Rte_07300] d If a RteToolChainSignificantCharacters limit has been configured,

the RTE generator shall provide the list of C RTE identifiers whose name is not unique
when only the first RteToolChainSignificantCharacters characters are considered. c
(SRS_BSW_00007)
The RTE API presented in Section 5.6 is described using C. The API is also directly
accessible from an AUTOSAR software-component written using C++ provided all API
functions and instances of data structures are imported with C linkage.
[SWS_Rte_01011] d The RTE generator shall ensure that, for a component written in
C++ , all imported RTE symbols are declared using C linkage. c(SRS_Rte_00138)
For the RTE API for C and C++ components the import of symbols occurs within the
application header file (Section 5.3.3).

5.1.2 Generator Principles

5.1.2.1 Operating Modes

An object-code component is compiled against an application header file that is cre-

ated during the first RTE Contract phase of RTE generation. The object code is then
linked against an RTE created during the second RTE Generation phase. To ensure
that the object-code component and the RTE code are compatible the RTE generator
supports compatibility mode that uses well-defined data structures and types for the
component data structure. In addition, an RTE generator may support a vendor oper-
ating mode that removes compatibility between RTE generators from different vendors
but permits implementation specific, and hence potentially more efficient, data struc-
tures and types.
[SWS_Rte_01195] d All RTE operating modes shall be source-code compatible at the
SW-C level. c(SRS_Rte_00024, SRS_Rte_00140)
Requirement [SWS_Rte_01195] ensures that a SW-C can be used in any operating
mode as long as the source is available. The converse is not true for example, an
object-code SW-C compiled after the RTE Contract phase must be linked against an
RTE created by an RTE generator operating in the same operating mode. If the vendor
mode is used in the RTE Contract phase, an RTE generator from the same vendor
(or one compatible to the vendor-mode features of the RTE generator used in the RTE
Contract phase) has to be used for the RTE Generation phase.

5.1.2.1.1 Compatibility Mode

Compatibility mode is the default operating mode for an RTE generator and guarantees
compatibility even between RTE generators from different vendors through the use of
well-defined, standardized, data structures. The data structures that are used by the
generated RTE in the compatibility mode are defined in Section 5.4.

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Support for compatibility mode is required and therefore is guaranteed to be imple-

mented by all RTE generators.
[SWS_Rte_01151] d The compatibility mode shall be the default operating mode and
shall be supported by all RTE generators, whether they are for the RTE Contract or
RTE Generation phases. c(SRS_Rte_00145)
The compatibility mode uses custom (generated) functions with standardized names
and data structures that are defined during the RTE Contract phase and used when
compiling object-code components.
[SWS_Rte_01216] d SW-Cs that are compiled against an RTE Contract phase ap-
plication header file (i.e. object-code SW-Cs) generated in compatibility mode shall be
compatible with an RTE that was generated in compatibility mode. c(SRS_Rte_00145)
The use of well-defined data structures imposes tight constraints on the RTE imple-
mentation and therefore restricts the freedom of RTE vendors to optimize the solution
of object-code components but have the advantage that RTE generators from different
vendors can be used to compile a binary-component and to generate the RTE.
Note that even when an RTE generator is operating in compatibility mode the data
structures used for source-code components are not defined thus permitting vendor-
specific optimizations to be applied.

5.1.2.1.2 Vendor Mode

Vendor mode is an optional operating mode where the data structures defined in the
RTE Contract phase and used in the RTE Generation phase are implementation
specific rather than standardized.
[SWS_Rte_01152] d An RTE generator may optionally support vendor mode. c
(SRS_Rte_00083)
The data structures defined and declared when an RTE generator operates in vendor
mode are implementation specific and therefore not described in this document. This
omission is deliberate and permits vendor-specific optimizations to be implemented for
object-code components. It also means that RTE generators from different vendors
are unlikely to be compatible when run in the vendor mode.
[SWS_Rte_01234] d An AUTOSAR software-component shall be assumed to be
operating in compatibility mode unless vendor mode is explicitly requested. c
(SRS_Rte_00145, SRS_Rte_00146)
The potential for more efficient implementations of object-code components offered by
the vendor mode comes at the expense of requiring high cohesion between object-
code components (compiled after the RTE Contract phase) and the generated RTE.
However, this is not as restrictive as it may seem at first sight since the tight coupling
is also reflected in many other aspects or the AUTOSAR methodology, not least of

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which is the requirement that the same compiler (and compatible options) is used when
compiling both the object-code component and the RTE.

5.1.2.2 Optimization Modes

The actual RTE code is generated based on the input information for each ECU
individually. To allow optimization during the RTE generation one of the two general
optimization directions can be specified: MEMORY consumption or execution RUNTIME.
[SWS_Rte_05053] d The RTE Generator shall optimize the generated RTE code ei-
ther for memory consumption or execution runtime depending on the provided input
information RteOptimizationMode. c(SRS_Rte_00023)

5.1.2.3 Build support

The generated RTE code has to respect several rules in order to be integrated with
other AUTOSAR software in the build process.
[SWS_Rte_05088] d All memory1 allocated by the RTE shall be wrapped in the Mem-
ory Allocation Keyword as defined in the Specification of Memory Mapping [28] using
RTE as the <PREFIX>. c(SRS_Rte_00148, SRS_Rte_00169)
Due to the structure of the AUTOSAR Meta Model the input configuration might contain
several DataPrototypes which are resulting only in one memory object. In this case
it is required to define rules which SwAddrMethod is used to allocate the memory and
to decide about its initialization. Therefore precedence rules for SwAddrMethods are
defined by [SWS_Rte_07590] and [SWS_Rte_07591].
In order to ensure proper allocation of the variables and code instantiated by RTE, the
RTE code utilizes the memory mapping mechanism described in document [28]. The
requirements below follow the principles of the document [28], section "Requirements
on implementations using memory mapping header files for BSW Modules and Soft-
ware Components". However the basic granularity of constants and variables created
due to DataPrototypes in the input configuration is driven by the properties of the
applied data types and the applied SwAddrMethods.
[SWS_Rte_07589] d For AutosarDataPrototype implementations the
<SEGMENT> infix for the Memory Allocation Keyword shall be set to the short-
Name of the preceding SwAddrMethod if there is one defined and if [SWS_Rte_07592]
is not applicable. c(SRS_Rte_00148, SRS_Rte_00169)
[SWS_Rte_07047] d If the memoryAllocationKeywordPolicy of the preceding
SwAddrMethod is set to addrMethodShortName the <ALIGNMENT> suffix with lead-
ing underscore of the Memory Allocation Keyword used by the AutosarDat-
1
memory refers to all elements in the generated RTE which will later occupy space in the ECUs
memory and is directly associated with the RTE. This includes code, static data, parameters, etc.

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aPrototype implementations and PerInstanceMemory implementations

shall be omitted. c(SRS_Rte_00148, SRS_Rte_00169)
[SWS_Rte_07048] d If the memoryAllocationKeywordPolicy of the pre-
ceding SwAddrMethod is set to addrMethodShortNameAndAlignment the
<ALIGNMENT> suffix with leading underscore of the Memory Allocation Keyword
used by the AutosarDataPrototype implementations and PerInstance-
Memory implementations shall be set to the resulting alignment as defined in
[SWS_Rte_07049], [SWS_Rte_07050], [SWS_Rte_07051], [SWS_Rte_07052] and
[SWS_Rte_07053]. c(SRS_Rte_00148, SRS_Rte_00169)
[SWS_Rte_08303] d The alignment of a PerInstanceMemory shall be set to UN-
SPECIFIED. c(SRS_Rte_00013, SRS_Rte_00077)
[SWS_Rte_07049] d The alignment defined by the preceding (see [SWS_Rte_07196])
swAlignment attribute of a AutosarDataPrototype precedes the alignment
defined by the ImplementationDataType related to the AutosarDataProto-
type as defined in [SWS_Rte_07050], [SWS_Rte_07051], [SWS_Rte_07052] and
[SWS_Rte_07053]. c(SRS_Rte_00148, SRS_Rte_00169)
[SWS_Rte_07050] d The alignment of a AutosarDataPrototype related to a Prim-
itive Implementation Data Type or Array Implementation Data Type
shall be set to the baseTypeSize of the referred SwBaseType. c(SRS_Rte_00148,
SRS_Rte_00169)
Note: Requirement [SWS_Rte_07050] uses "size" rather than "alignment" as it is con-
sidered to be the integrators job to ensure via appropriate memory mapping configura-
tion (i.e. using the proper alignment #pragmas or omitting them at all to let the compiler
decide) that the platform specific alignment requirements of objects of the respective
size are honored.
[SWS_Rte_07051] d The alignment of a AutosarDataPrototype related to
a Structure Implementation Data Type or Union Implementation Data
Type shall be set to to biggest baseTypeSize of the SwBaseTypes used by the ele-
ments. c(SRS_Rte_00148, SRS_Rte_00169)
Note: According [SWS_Rte_07051] structures and unions are aligned according the
size of the biggest primitive element in the structure.
[SWS_Rte_07052] d The alignment of a AutosarDataPrototype related to a Re-
definition Implementation Data Type shall be determined from the rede-
fined ImplementationDataType. c(SRS_Rte_00148, SRS_Rte_00169)
[SWS_Rte_07053] d The alignment of a AutosarDataPrototype related to a
Pointer Implementation Data Type shall be set to PTR. c(SRS_Rte_00148,
SRS_Rte_00169)
[SWS_Rte_03868] d The alignment of an AutosarDataPrototype typed by an
Array Implementation Data Type, or Structure Implementation Data
Type, or Union Implementation Data Type which solely contains elements

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typed by Pointer Implementation Data Type shall be set to PTR. c

(SRS_Rte_00148, SRS_Rte_00169)
Note: If the RTE generator does not implement the memory objects related to Vari-
ableDataPrototypes and ParameterDataPrototypes for instance due to com-
munication via IOC the assigned SwAddrMethods might have no effect on the gener-
ated RTE code.
[SWS_Rte_07592] d If the RTE Generator requires several non automatic memory
objects per AutosarDataPrototypes (e.g. due to partitioning) the RTE Genera-
tor is permitted to select the <SEGMENT> infix for the auxiliary memory objects. c
(SRS_Rte_00148, SRS_Rte_00169)
Note: For definitions and declarations for memory objects allocated by the RTE and
implementing AutosarDataPrototypes without an assigned SwAddrMethod the
RTE Generator is permitted to select the <SEGMENT> infix but still has to follow
[SWS_Rte_05088].
[SWS_Rte_08787] d The <NAME> part of the memory allocation keyword shall ad-
here to the following pattern: <SEGMENT>[_<ALIGNMENT>] c(SRS_Rte_00148,
SRS_Rte_00169)
[SWS_Rte_07590] d The SwAddrMethod of a AutosarDataPrototype in the
PPortPrototype precedes the assigned SwAddrMethod(s) of the AutosarDat-
aPrototype in the RPortPrototype and PRPortPrototype. c(SRS_Rte_00148,
SRS_Rte_00169)
[SWS_Rte_06741] d The SwAddrMethod of a AutosarDataPrototype in the PR-
PortPrototype precedes the assigned SwAddrMethod(s) of the AutosarDat-
aPrototype in the RPortPrototype. c(SRS_Rte_00148, SRS_Rte_00169)
[SWS_Rte_07591] d The SwAddrMethod of the ramBlocks has always higher prece-
dence as the assigned SwAddrMethods of the VariableDataPrototypes in the
PortPrototypes. c(SRS_Rte_00148, SRS_Rte_00169)
[SWS_Rte_05089] d The RTE Generator shall provide information on the used mem-
ory segments and their attributes from [SWS_Rte_05088] in the generated Basic Soft-
ware Module Description(see [SWS_Rte_05086]). The information shall be provided
in the MemorySection elements of the Basic Software Module Description [9]. c
(SRS_Rte_00148, SRS_Rte_00169, SRS_Rte_00170)
[SWS_Rte_05090] d The RTE Generator shall provide information about the gener-
ated artifacts which are produced during the RTE generation, using the generated
Basic Software Module Description(see [SWS_Rte_05086]). The information shall be
provided in the BswImplementation::generatedArtifact elements of the Basic
Software Module Description [9]. c()

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5.1.2.4 Software Component Namespace

The concept of RTE requires that objects and definitions which are related to one soft-
ware component are generated in a global name space. Nevertheless in this global
name space labels have to be unique for instance to support a correct linkage by
C Linker Locater. To ensure unique labels such objects and definitions related to a
specific software component are typically prefixed or infixed with the component type
symbol.
When AtomicSwComponentTypes of several vendors are integrated in the same
ECU name clashes might occur if the identical component type name is accidentally
used twice. To ease the dissolving of name clashes the RTE supports the supersed-
ing of the AtomicSwComponentType.shortName with the SymbolProps.symbol
attribute.
The resulting name related to an AtomicSwComponentType is called component
type symbol in this document.
[SWS_Rte_06714] d The component type symbol shall be the value of the Sym-
bolProps.symbol attribute of the AtomicSwComponentType if the symbol attribute
is defined. c()
[SWS_Rte_06715] d The component type symbol shall be the shortName of the
AtomicSwComponentType if no symbol attribute for this AtomicSwComponent-
Typeis defined. c()
Please note that the component type symbol is not applied for file names, e.g
Application Header File or includes of Memory Mapping Header files. Its expected that
a build environment can handle two equally named files.

5.1.3 Generator external configuration switches

There are use-cases where there is need to influence the behavior of the RTE Gen-
erator without changing the RTE Configuration description. In order to support such
use-cases this section collects the external configuration switches.
Note: it is not specified how these switches shall be implemented in the actual RTE
Generator implementation.
Unconnected R-Port check
[SWS_Rte_05099] d The RTE Generator shall support the external configuration
switch strictUnconnectedRPortCheck which, when enabled, forces the RTE
Generator to consider unconnected R-Ports as an error. c(SRS_Rte_00139)
Missing input configuration check
[SWS_Rte_05148] d The RTE Generator shall support the external configuration
switch strictConfigurationCheck which, when enabled, forces the RTE Gen-
erator to consider missing input configuration information as an error. If the external

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configuration switch strictConfigurationCheck is not provided the value shall be

considered as true. c()
For Details on the use-cases please refer to section 3.7.
Missing initialization values
[SWS_Rte_07680] d The RTE Generator shall support the external configuration
switch strictInitialValuesCheck. This switch, when enabled, forces the RTE
Generator to check initial values against constraints defined in [TPS_SYST_02011],
[SWS_Rte_07642] and [SWS_Rte_07681]. Not fulfilled constraints shall be consid-
ered as errors by the RTE Generator. c(SRS_Rte_00108)

5.2 API Principles

[SWS_Rte_01316] d The RTE shall be configured and/or generated for each ECU. c
(SRS_Rte_00021)
Part of the process is the customization (i.e. configuration or generation) of the RTE
API for each AUTOSAR software-component on the ECU. The customization of the
API implementation for each AUTOSAR software-component, whether by generation
anew or configuration of library code, permits improved run-time efficiency and reduces
memory overheads.
The design of the RTE API has been guided by the following core principles:
The API should be orthogonal there should be only one way of performing a
task.
[SWS_Rte_01314] d The API shall be compiler independent. c(SRS_Rte_00100)
[SWS_Rte_03787] d The RTE implementation shall use the compiler abstraction.
c(SRS_Rte_00149)
The consequence of [SWS_Rte_03787] is that no additional memory modifiers
(e.g. volatile) are permitted in the signatures of the RTE APIs.
[SWS_Rte_01315] d The API shall support components where the source-
code is available [SRS_Rte_00024] and where only object-code is available
[SRS_Rte_00140]. c(SRS_Rte_00024, SRS_Rte_00140)
The API shall support the multiple instantiation of AUTOSAR software-
components [SRS_Rte_00011] that share code [SRS_Rte_00012].
Two forms of the RTE API are available to software-components; direct and indirect.
The direct API has been designed with regard to efficient invocation and includes an
API mapping that can be used by an RTE generator to optimize a components API, for
example, to permit the direct invocation of the generated API functions or even eliding
the generated RTE completely. The indirect API cannot be optimized using the API

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mapping but has the advantage that the handle used to access the API can be stored
in memory and accessed, via an iterator, to apply the same API to multiple ports.

5.2.1 RTE Namespace

All RTE symbols (e.g. function names, global variables, etc.) visible within the global
namespace are required to use the Rte prefix.
[SWS_Rte_01171] d All externally visible symbols created by the RTE generator shall
use the prefix Rte_.
This rule shall not be applied for the following symbols:
type names representing AUTOSAR Data Types (specified in [SWS_Rte_07104],
[SWS_Rte_07109], [SWS_Rte_07110], [SWS_Rte_07111], [SWS_Rte_07114],
[SWS_Rte_07144], [SWS_Rte_07148])
enumeration literals of implementation data types (specified in
[SWS_Rte_03810])
range limits of ApplicationDataTypes (specified in [SWS_Rte_05052])
This rule shall be applied for RTE internal types to avoid name clashes with other
modules and SWCs. c(SRS_BSW_00307, SRS_BSW_00300, SRS_Rte_00055)
In order to maintain control over the RTE namespace the creation of symbols in the
global namespace using the prefix Rte_ is reserved for the RTE generator.
The generated RTE is required to work with components written in several source lan-
guages and therefore should not use language specific features, such as C++ names-
paces, to ensure symbol name uniqueness.

5.2.2 Direct API

The direct invocation form is the form used to present the RTE API in Section 5.6. The
RTE direct API mapping is designed to be optimizable so that the instance handle is
elided (and therefore imposes zero run-time overhead) when the RTE generator can
determine that exactly one instance of a component is mapped to an ECU.
All runnable entities for a AUTOSAR software-component type are passed the same
instance handle type (as the first formal parameter) and can therefore use the same
type definition from the components application header file.
The direct API can also be further optimized for source code components via the API
mapping.
The direct API is typically implemented as macros that are modified by the RTE gen-
erator depending on configuration. This technique places certain restrictions on how
the API can be used within a program, for example, it is not possible in C to take the

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address of a macro and therefore direct API functions cannot be placed within a func-
tion table or array. If it is required by the implementation of a software-component to
derive a pointer to an object for the port API the PortAPIOption enableTakeAd-
dress can be used. For instance in an implementation of an AUTOSAR Service this
feature might be used to setup a constant function pointer table storing the configura-
tion of callback functions per ID. Additionally the indirect API provides support for API
addresses and iteration over ports.
[SWS_Rte_07100] d If a PortPrototype is referenced by PortAPIOption with en-
ableTakeAddress = TRUE the RTE generator shall provide true/native C functions
(as opposed to function-like preprocessor macros) for the API related to this port. c()
The PortAPIOption enableTakeAddress = TRUE is not supported for software-
components supporting multiple instantiation.

5.2.3 Indirect API

The indirect API is an optional form of API invocation that uses indirection through
a port handle to invoke RTE API functions rather than direct invocation. This form
is less efficient (the indirection cannot be optimized away) but supports a different
programming style that may be more convenient. For example, when using the indirect
API, an array of port handles of the same interface and provide/require direction is
provided by RTE and the same RTE API can be invoked for multiple ports by iterating
over the array.
Both direct and indirect forms of API call are equivalent and result in the same gener-
ated RTE function being invoked.
Whether the indirect API is generated or not can be specified for each software com-
ponent and for each port prototype of the software component separately with the
indirectAPI attribute.
The semantics of the port handle must be the same in both the RTE Contract and
RTE Generation phases since the port handle accesses the standardized data struc-
tures of the RTE.
It is possible to mix the indirect and direct APIs within the same SW-C, if the indirect
API is present for the SW-C.
The indirect API uses port handles during the invocation of RTE API calls. The type
of the port handle is determined by the port interface that types the port which means
that if a component declares multiple ports typed by the same port interface the port
handle points to an array of port data structures and the same API invoked for each
element.
The port handle type is defined in Section 5.4.2.5.

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5.2.3.1 Accessing Port Handles

An AUTOSAR SW-C needs to obtain port handles using the instance handle before the
indirect API can be used. The definition of the instance handle in Section 5.4.2 defines
the Port API section of the component data structure and these entries can be used
to access the port handles in either object-code or source-code components.
The API Rte_Ports and Rte_NPorts provides port data handles of a given interface.
Example 5.1 shows how the indirect API can be used to apply the same operation to
multiple ports in a component within a loop.

Example 5.1

The port handle points to an array that can be used within a loop to apply the same
operation to each port. The following example sends the same data to each receiver:
1 void TT1(Rte_Instance instance)
2 {
3 Rte_PortHandle_interface1_P my_array;
4 my_array=Rte_Ports_interface1_P(instance);
5 uint8 s;
6 for(s = 0u; s < Rte_NPorts_interface1_P(instance); s++) {
7 my_array[s].Send_a(23);
8 }
9 }

Note that if csInterface1 is a client/server interface with an operation op, the

mechanism sketched in Example5.1 only works if op is invoked either by all clients
synchronously or by all clients asynchronously, since the signature of Rte_Call
and the existence of Rte_Result depend on the kind of invocation (see restriction
[SWS_Rte_03605].

5.2.4 VariableAccess in the dataReadAccess and dataWriteAccess roles

The RTE is required to support access to data with implicit semantics. The required
semantics are subject to two constraints:
For VariableAccess in the dataReadAccess role, the data accessed by a
runnable entity must not change during the lifetime of the runnable entity.
For VariableAccess in the dataWriteAccess role, the data written by a
runnable entity is only visible to other runnable entities after the accessing runn-
able entity has terminated.
The generated RTE satisfies both requirements through data copies that are created
when the RTE is generated based on the known task and runnable mapping.

Example 5.2

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Consider a data element, a, of port p which is accessed using a VariableAc-

cess in the dataReadAccess role by runnable re1 and a VariableAccess in the
dataWriteAccess role by runnable re2. Furthermore, consider that re1 and re2
are mapped to different tasks and that execution of re1 can pre-empt re2.
In this example, the RTE will create two different copies to contain a to prevent updates
from re2 corrupting the value access by re1 since the latter must remain unchanged
during the lifetime of re1.

The RTE API includes three API calls to support VariableAccesses in

the dataReadAccess and dataWriteAccess roles for a software-component;
Rte_IRead (see Section 5.6.18), Rte_IWrite, and Rte_IWriteRef (see Section
5.6.19 and 5.6.20). The API calls Rte_IRead and Rte_IWrite access the data
copies (for read and write access respectively). The API call Rte_IWriteRef returns
a reference to the data copy, thus enabling the runnable to write the data directly. This
is especially useful for Structure Implementation Data Type and Array Im-
plementation Data Type. The use of an API call for reading and writing enables
the definition to be changed based on the task and runnable mapping without affecting
the software-component code.

Example 5.3

Consider a data element, a, of port p which is declared as being accessed using

VariableAccesses in the dataWriteAccess role by runnables re1 and re2 within
component c. The RTE API for component c will then contain four API functions to
write the data element;
1 void Rte_IWrite_re1_p_a(Rte_Instance instance, <type> val);
2 void Rte_IWrite_re2_p_a(Rte_Instance instance, <type> val);
3 <type> Rte_IWriteRef_re1_p_a(Rte_Instance instance);
4 <type> Rte_IWriteRef_re2_p_a(Rte_Instance instance);

The API calls are used by re1 and re2 as required. The definitions of the API depend
on where the data copies are defined. If both re1 and re2 are mapped to the same
task then each can access the same copy. However, if re1 and re2 are mapped to
different (pre-emptable) tasks then the RTE will ensure that each API access a different
copy.

The Rte_IRead and Rte_IWrite use the data handles defined in the component
data structure (see Section 5.4.2).

5.2.5 Per Instance Memory

The RTE is required to support Per Instance Memory [SRS_Rte_00013].

The components instance handle defines a particular instance of a component and is
therefore used when accessing the Per Instance Memory using the Rte_Pim API.

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The Rte_Pim API does not impose the RTE to apply a data consistency mechanism
for the access to Per Instance Memory. An application is responsible for consistency
of accessed data by itself. This design decision permits efficient (zero overhead) ac-
cess when required. If a component possesses multiple runnable entities that require
concurrent access to the same Per Instance Memory, an exclusive area can be used to
ensure data consistency, either through explicit Rte_Enter and Rte_Exit API calls
or by declaring that, implicitly, the runnable entities run inside an exclusive area.
Thus, the Per Instance Memory is exclusively used by a particular software-component
instance and needs to be declared and allocated (statically).
In general there are two different kinds of Per Instance Memory available which are
varying in the typing mechanisms. C typed PerInstanceMemory is typed by
the description of a C typedef whereas arTypedPerInstanceMemory (AUTOSAR
Typed Per Instance Memory ) is typed by the means of an AutosarDataType. Nev-
ertheless both kinds of Per Instance Memory are accessed via the Rte_Pim API.
[SWS_Rte_07161] d The generated RTE shall declare arTypedPerInstanceMem-
ory in accordance to the associated ImplementationDataType of a particular
arTypedPerInstanceMemory. c(SRS_Rte_00013, SRS_Rte_00077)
Note: The related AUTOSAR data type will generated in the RTE Types Header File
(see chapter 5.3.6).
[SWS_Rte_02303] d The generated RTE shall declare C typed PerInstanceMem-
ory in accordance to the attribute type of a particular PerInstanceMemory. c
(SRS_Rte_00013, SRS_Rte_00077)
In addition, the attribute type needs to be defined in the corresponding software-
component header. Therefore, the attribute typeDefinition of the PerInstance-
Memory contains its definition as plain text string. It is assumed that this text is valid
C syntax, because it will be included verbatim in the application header file.
[SWS_Rte_02304] d The generated RTE shall define the type of a C typed PerIn-
stanceMemory by interpreting the text string of the attribute typeDefinition of
a particular PerInstanceMemory as the C definition. This type shall be named
according to the attribute type of the PerInstanceMemory. c(SRS_Rte_00013,
SRS_Rte_00077)
[SWS_Rte_07133] d The type of a C typed PerInstanceMemory shall be defined
in the RTE Types Header File as
typedef <typedefinition> Rte_PimType_<cts>_<type>;
where <typedefinition> is the content of the typeDefinition attribute of the
PerInstanceMemory,
<type> is the type name defined in the type attribute of the the PerInstanceMem-
ory and
<cts> the component type symbol of the AtomicSwComponentType to which
the PerInstanceMemory belongs.. c(SRS_Rte_00013, SRS_Rte_00077)

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[SWS_Rte_03782] d The type of a C typed PerInstanceMemory shall be defined

in the Application Header File as
typedef Rte_PimType_<cts>_<type> <type>;
where <cts> is the component type symbol of the AtomicSwComponentType
to which the PerInstanceMemory belongs and
<type> is the type name defined in the type attribute of the PerInstanceMemory.
c(SRS_Rte_00013, SRS_Rte_00077)
[SWS_Rte_07134] d The RTE generator shall generate type definitions for C typed
PerInstanceMemory (see [SWS_Rte_07133] and [SWS_Rte_03782]) only once
for all C typed PerInstanceMemorys of same Software Component Type defin-
ing identical couples of type and typeDefinition attributes. c(SRS_Rte_00013,
SRS_Rte_00165)
Note: This shall support, that a Software Component Type can define several PerIn-
stanceMemorys using the identical C type.
[SWS_Rte_07135] d The RTE generator shall reject configurations, violating [con-
str_2007], where C typed PerInstanceMemorys with identical type attributes but
different typeDefinition attributes in the same Software Component Type are de-
fined. c(SRS_Rte_00013, SRS_Rte_00018)
Note: This would lead to an compiler error due to incompatible redefinition of a C type.
[SWS_Rte_02305] d The generated RTE shall instantiate (or allocate) declared
PerInstanceMemory. c(SRS_Rte_00013, SRS_Rte_00077)
[SWS_Rte_07182] d The generated RTE shall initialize declared PerInstanceMem-
ory according the initValue attribute if
an initValue is defined
AND
no SwAddrMethod is defined for PerInstanceMemory.
c(SRS_Rte_00013, SRS_Rte_00077)
[SWS_Rte_08304] d Variables implementing PerInstanceMemory shall be initialized
by RTE if
an initValue is defined
AND
a SwAddrMethod is defined for PerInstanceMemory
AND
the RteInitializationStrategy for the sectionInitializa-
tionPolicy of the related SwAddrMethod is NOT configured to
RTE_INITIALIZATION_STRATEGY_NONE.

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c(SRS_Rte_00013, SRS_Rte_00077)
[SWS_Rte_07183] d The generated RTE shall instantiate (or allocate) declared
arTypedPerInstanceMemory. c(SRS_Rte_00013, SRS_Rte_00077)
[SWS_Rte_07184] d The generated RTE shall initialize declared arTypedPerIn-
stanceMemory according the ValueSpecification of the VariableDataPro-
totype defining the arTypedPerInstanceMemory if the general initialization con-
ditions in [SWS_Rte_07046] are fulfilled. c(SRS_Rte_00013, SRS_Rte_00077)
[SWS_Rte_05062] d In case the PerInstanceMemory or arTypedPerInstance-
Memory is used as a permanent RAM Block for the NvRam manager the name for the
instantiated PerInstanceMemory or arTypedPerInstanceMemory shall be taken
from the input information RteNvmRamBlockLocationSymbol. Otherwise the RTE
generator is free to choose an arbitrary name. c(SRS_Rte_00013, SRS_Rte_00077)
Note that, in cases where a PerInstanceMemory is not initialized due to
[SWS_Rte_07182] or [SWS_Rte_07184], the memory allocated for a PerInstance-
Memory is not initialized by the generated RTE, but by the corresponding software-
component instances.
[SWS_Rte_07693] d In case a ParameterDataPrototype in the role perInstan-
ceParameter is used as a ROM Block for the NVRam Manager, then the name for
the instantiated ParameterDataPrototype shall be taken from the input information
RteNvmRomBlockLocationSymbol. Otherwise the RTE generator is free to choose
an arbitrary name. c(SRS_Rte_00154)

Example 5.4

This description of a software component

<AR-PACKAGE>
<SHORT-NAME>SWC</SHORT-NAME>
<ELEMENTS>
<APPLICATION-SW-COMPONENT-TYPE>
<SHORT-NAME>TheSwc</SHORT-NAME>
<INTERNAL-BEHAVIORS>
<SWC-INTERNAL-BEHAVIOR>
<SHORT-NAME>TheSwcInternalBehavior</SHORT-NAME>
<PER-INSTANCE-MEMORYS>
<PER-INSTANCE-MEMORY>
<SHORT-NAME>MyPIM</SHORT-NAME>
<TYPE>MyMemType</TYPE>
<TYPE-DEFINITION>struct {uint16 val1; uint8 * val2;}</
TYPE-DEFINITION>
</PER-INSTANCE-MEMORY>
</PER-INSTANCE-MEMORYS>
</SWC-INTERNAL-BEHAVIOR>
</INTERNAL-BEHAVIORS>
</APPLICATION-SW-COMPONENT-TYPE>
</ELEMENTS>
</AR-PACKAGE>

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will e. g. result in the following code:

In the RTE Types Header File:
1 /* typedef to ensure unique typename */
2 /* according to the attributes */
3 /* type and typeDefinition */
4 typedef struct{
5 uint16 val1;
6 uint8 * val2;
7 } Rte_PimType_TheSwc_MyMemType;

In the respective Application Header File:

1 /* typedef visible within the scope */
2 /* of the component according to the attributes */
3 /* type and typeDefinition */
4 typedef Rte_PimType_TheSwc_MyMemType MyMemType;

In Rte.c:
1 /* declare and instantiate mem1 */
2 /* "mem1" name may be taken from RteNvmRamBlockLocationSymbol */
3 Rte_PimType_TheSwc_MyMemType mem1;

Note that the name used for the definition of the PerInstanceMemory may be used
outside of the RTE. One use-case is to support the definition of the link between the
NvRam Managers permanent blocks and the software-components. The name in
RteNvmRamBlockLocationSymbol is used to configure the location at which the
NvRam Manager shall store and retrieve the permanent block content. For a detailed
description please refer to the AUTOSAR Software Component Template [2].

5.2.6 API Mapping

The RTE API is implemented by macros and generated API functions that are created
(or configured, depending on the implementation) by the RTE generator during the
RTE Generation phase. Typically one customized macro or function is created for
each end of a communication though the RTE generator may elide or combine custom
functions to improve run-time efficiency or memory overheads.
[SWS_Rte_01274] d The API mapping shall be implemented in the application header
file. c(SRS_BSW_00330, SRS_Rte_00027, SRS_Rte_00051, SRS_Rte_00083,
SRS_Rte_00087)
The RTE generator is required to provide a mapping from the RTE API name to the
generated function [SRS_Rte_00051]. The API mapping provides a level of indirec-
tion necessary to support binary components and multiple component instances. The
indirection is necessary for two reasons. Firstly, some information may not be known
when the component is created, for example, the components instance name, but
are necessary to ensure that the names of the generated functions are unique. Sec-
ondly, the names of the generated API functions should be unique (so that the ECU

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image can link correctly) and the steps taken to ensure this may make the names not
user-friendly. Therefore, the primary rationale for the API mapping is to provide the
required abstraction that means that a component does not need to concern itself with
the preceding problems.
The requirements on the API mapping depend on the phase in which an RTE gen-
erator is operating. The requirements on the API mapping are only binding for RTE
generators operating in compatibility mode.

5.2.6.1 RTE Contract Phase

Within the RTE Contract phase the API mapping is required to convert from the
source API call (as defined in Section 5.6) to the runnable entity provided by a software-
component or the implementation of the API function created by the RTE generator.
When compiled against a RTE Contract phase header file a software-component that
can be multiple instantiated is required to use a general API mapping that uses the
instance handle to access the function table defined in the component data structure.
[SWS_Rte_03706] d If a software-component supportsMultipleInstantiation,
the RTE Contract phase API mapping shall access the generated RTE functions using
the instance handle to indirect through the generated function table in the component
data structure. c(SRS_Rte_00051)

Example 5.5

For a require client-server port p1 with operation a with a single argument, the gen-
eral form of the API mapping would be:
1 #define Rte_Call_p1_a(instance,v) ((instance)->p1.Call_a(v))

Where s is the instance handle.

[SWS_Rte_06516] d The RTE Generator shall wrap each API mapping and API func-
tion definition of a variant existent API according table 4.17 if the variability shall be
implemented.
1 #if (<condition> [||<condition>])
2
3 <API Mapping>
4

5 #endif

where condition are the condition value macro(s) of the VariationPoints rel-
evant for the conditional existence of the RTE API (see table 4.17), API Mapping
is the code according an invariant API Mapping (see also [SWS_Rte_01274],
[SWS_Rte_03707], [SWS_Rte_03837], [SWS_Rte_01156]) c(SRS_Rte_00201)

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Note: In case of explicit communication any existent access points in the meta model
might result in the related API which results in a or condition for the pre processor.

Example 5.6

For a require client-server port p1 with operation a with a single argument of the
component c1 defining a ServerCallPoint which is subject of variability in runn-
able run1, the general form of the conditional API mapping would be:
1
2 #if (Rte_VPCon_c1_run1_p1_a==TRUE)
3
4 #define Rte_Call_p1_a(instance,v) ((instance)->p1.Call_a(v))
5
6 #endif

[SWS_Rte_03707] d If a software-component does not supportsMultipleInstan-

tiation, the RTE Contract phase API mapping shall access the generated RTE
functions directly. c(SRS_Rte_00051)
[SWS_Rte_08073] d In compatibility mode or RTE Contract phase, the API mapping
for Rte_PBCon shall access the generated RTE functions directly. c(SRS_Rte_00051)
When accessed directly, the names of the generated functions are formed according
to the following rule:
[SWS_Rte_03837] d The function generated for API calls
Rte_<name>_<api_extension> that are intended to be called by the software
component shall be
Rte_<name>_<cts>_<api_extension>,
where <name> is the API root (e.g. Receive),
<cts> the component type symbol of the AtomicSwComponentType,
and <api_extension> is the extension of the API dependent on <name> (e.g.
<re>_<p>_<o>). c(SRS_Rte_00051)
[SWS_Rte_01156] d In compatibility mode, the following API calls shall be imple-
mented as macros:
Rte_Pim
Rte_IrvIRead
Rte_IrvIWrite
Rte_IrvIWriteRef
The generated macros for these API calls shall map to the relevant fields of the com-
ponent data structure. c(SRS_Rte_00051)
For APIs not mentioned in [SWS_Rte_01156], and not subject to enableTakeAd-
dress, requirement [SWS_Rte_03707] means that in contract phase a function must

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be generated for single instantiated SWCs. Likewise for multiple instantiated SWCs a
function must also be generated in contract phase as the relevant fields in the CDS
are omitted and therefore macros cannot be used in the API mapping. In compatibility
mode and RTE phase the same limitations apply due to the constraints of the CDS.
Note that the rule described in [SWS_Rte_03837] does not apply for the life cycle
APIs, nor for the callback APIs, nor for the APIs that are implemented as macros
(see [SWS_Rte_01156]).
[SWS_Rte_06831] d In compatibility mode, the following API calls shall be imple-
mented either as macros (that map directly to the relevant field of the component data
structure) or as a C function (that may use the fields of the component data structure)
based on the state of the enableTakeAddress attribute [SWS_Rte_07100]:
Rte_IRead
Rte_IWrite
Rte_IWriteRef
Rte_IStatus
Rte_IFeedback
Rte_IInvalidate
c(SRS_Rte_00051)
Note: For [SWS_Rte_01156] and [SWS_Rte_06831] when the APIs are implemented
as macros the API mapping in the application header file directly uses relevant fields of
the component data structure. However the enableTakeAddress attribute only ap-
plies for single instantiated SWCs and therefore the body of the generated function can
directly access the relevant data if required without indirection through the component
data structure.
The functions generated that are the destination of the API mapping, which is created
during the RTE Contract phase, are created by the RTE generator during the second
RTE Generation phase.
[SWS_Rte_01153] d The generated function (or runnable) shall take the same param-
eters, in the same order, as the API mapping. c(SRS_Rte_00051)

Example 5.7

For a require client-server port p1 with operation a with a single argument for compo-
nent type c1 for which multiple instantiation is forbidden, the following mapping would
be generated:
1 #define Rte_Call_p1_a Rte_Call_c1_p1_a

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5.2.6.2 RTE Generation Phase

There are no requirements on the form that the API mapping created during the RTE
Generation phase should take. This is because the application header files defined
during this phase are used by source-code components and therefore compatibility
between the generated RTE and source-code components is automatic.
The RTE generator is required to produce the component data structure instances re-
quired by object-code components and multiple instantiated source-code components.
If multiple instantiation of a software-component is forbidden, then the API mapping
specified for the RTE Contract phase (Section 5.2.6.1) defines the names of the
generated functions. If multiple instantiation is possible, there are no corresponding
requirements that define the name of the generated function since all accesses to the
generated functions are performed via the component data structure which contains
well-defined entries (Sections 5.4.2.5 and 5.4.2.5).

5.2.6.3 Function Elision

Using the RTE Generation phase API mapping, it is possible for the RTE generator
to elide the use of generated RTE functions.
[SWS_Rte_01146] d If the API mapping elides an RTE function the RTE Generation
phase API mapping mechanism shall ensure that the invoking component still receives
a return value so that no changes to the AUTOSAR software-component are neces-
sary. c(SRS_Rte_00051)
In C, the elision of API calls can be achieved using a comma expression2

Example 5.8

As an example, consider the following component code:

1 Std_ReturnType s;
2 s = Rte_Send_p1_a(instance,23);

Furthermore, assume that the communication attributes are specified such that the
sender-receiver communication can be performed as a direct assignment and there-
fore no RTE API call needs to be generated. However, the component source cannot
be modified and expects to receive an Std_ReturnType as the return. The RTE
Generation phase API mapping could then be rewritten as:
1 #define Rte_Send_p1_a(s,a) (<var> = (a), RTE_E_OK)

Where <var> is the implementation dependent name for an RTE created cache be-
tween sender and receiver.

2
This is contrary to MISRA Rule 12.3 The comma operator should not be used .However, a comma
expression is valid, legal, C and the elision cannot be achieved without a comma expression and there-
fore the rule must be relaxed.

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5.2.6.4 API Naming Conventions

An AUTOSAR software-component communicates with other components (including

basic software) through ports and therefore the names that constitute the RTE API are
formed from the combination of the API calls functionality (e.g. Call, Send) that defines
the API root name and the access point through which the API operates.
For any API that operates through a port, the APIs access point includes the port
name.
A SenderReceiverInterface can support multiple data items and a
ClientServerInterface can support multiple operations, any of which can
be invoked through the requiring port by a client. The RTE API therefore needs a
mechanism to indicate which data item/operation on the port to access and this is
implemented by including the data item/operation name in the APIs access point.
As described above, the RTE API mapping is responsible for mapping the RTE API
name to the correct generated RTE function. The API mapping permits an RTE gener-
ator to include targeted optimization as well as removing the need to implement func-
tions that act as routing functions from generic API calls to particular functions within
the generated RTE.
For C and C++ the RTE API names introduce symbols into global scope and therefore
the names are required to be prefixed with Rte_ [SWS_Rte_01171].

5.2.6.5 API Parameters

All API parameters fall into one of two classes; parameters that are strictly read-only
(In parameters) and parameters whose value may be modified by the API function
(In/Out and Out parameters).
The type of these parameters is taken from the data element prototype or operation
prototype in the interface that characterizes the port for which the API is being gener-
ated.
In the following, requirement [SWS_Rte_06806] reflects the standard defined by [29].
The remaining requirements are include to ensure the consistency between different
RTE implementations. The rules described below regarding the default argument pass-
ing strategy may be overwritten by more specific requirements, e.g. ServerArgu-
mentImplPolicy.
[SWS_Rte_06804] d All input parameters using the P2CONST macro shall
use memclass AUTOMATIC and ptrclass RTE_APPL_DATA. c(SRS_Rte_00060,
SRS_BSW_00007)
[SWS_Rte_06805] d All parameters using the VAR macro shall use memclass AUTO-
MATIC. c(SRS_Rte_00059, SRS_BSW_00007)

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[SWS_Rte_06806] d All output and bi-directional parameters (i.e. both input and out-
put) parameters shall use the P2VAR macro. c(SRS_Rte_00061, SRS_BSW_00007)
[SWS_Rte_06807] d All parameters using the P2VAR macro shall use memclass
AUTOMATIC and ptrclass RTE_APPL_DATA. c(SRS_Rte_00059, SRS_Rte_00060,
SRS_BSW_00007)
In Parameters
[SWS_Rte_01017] d All input parameters that are a Primitive Imple-
mentation Data Type shall be passed by value. c(SRS_Rte_00059,
SRS_Rte_00061)
[SWS_Rte_01018] d All input parameters that are of type Structure Imple-
mentation Data Type or Union Implementation Data Type shall be
passed by reference. c(SRS_Rte_00060, SRS_Rte_00061)
[SWS_Rte_05107] d All input parameters that are an Array Implementation
Data Type shall be passed as an array expression (that is a pointer to the array
base type). c(SRS_Rte_00060, SRS_Rte_00061)
[SWS_Rte_07661] d All input parameters that are a data type of category
DATA_REFERENCE shall be passed as a pointer to the data type specified by
the SwPointerTargetProps. c(SRS_Rte_00059, SRS_Rte_00061)
[SWS_Rte_07086] d All input parameters that are passed by reference
([SWS_Rte_01018]) or passed as an array expression ([SWS_Rte_05107]) shall
be declared as pointer to const with the means of the P2CONST macro. c
(SRS_Rte_00060, SRS_BSW_00007)
Please note that the description of the P2CONST macro can be found in [30].
Out Parameters
[SWS_Rte_01019] d All output parameters that are of type Primitive Imple-
mentation Data Type shall be passed by reference. c(SRS_Rte_00061)
[SWS_Rte_07082] d All output parameters that are of type Structure Im-
plementation Data Type or Union Implementation Data Type shall
be passed by reference. c(SRS_Rte_00060, SRS_Rte_00061)
[SWS_Rte_05108] d All output parameters that are an Array Implementa-
tion Data Type shall be passed as an array expression (that is a pointer to
the array base type). c(SRS_Rte_00060, SRS_Rte_00061)
[SWS_Rte_07083] d All output parameters that are of type Pointer Imple-
mentation Data Type shall be passed as a pointer to the Pointer Imple-
mentation Data Type. c(SRS_Rte_00059, SRS_Rte_00061)
In/Out Parameters
[SWS_Rte_01020] d All bi-directional parameters (i.e. both input and output) that
are of type Primitive Implementation Data Type or Structure Im-

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plementation Data Type or Union Implementation Data Type shall

be passed by reference. c(SRS_Rte_00059, SRS_Rte_00061)
[SWS_Rte_05109] d All bi-directional parameters (i.e. both input and output) that
are an Array Implementation Data Type shall be passed as an array ex-
pression (that is a pointer to the array base type). c(SRS_Rte_00061)
[SWS_Rte_07084] d All input, output and bi-directional parameters which re-
lated DataPrototype is typed or mapped to an Redefinition Implemen-
tation Data Type shall be treated according the kind of data type rede-
fined by the Redefinition Implementation Data Type. The possible
kinds of data types supported by RTE are listed in 5.3.4.2. c(SRS_Rte_00059,
SRS_Rte_00060, SRS_Rte_00061)
In order to indicate the direction of the individual API parameters, the descriptions
of the API signatures in this API reference chapter use the direction qualifiers IN,
OUT, and INOUT. These direction qualifiers are not part of the actual API proto-
types. Especially, the user cannot expect that these direction qualifiers are available
for the application.

Example 5.9

This would be the Rte_Write API generated for the example 5.5 (example of a two
dimension array typed by an ImplementationDataType):
1 FUNC(Std_ReturnType, RTE_CODE) Rte_Write_<p>_<o>(P2CONST(uint8,
AUTOMATIC, AUTOMATIC) data)

Which can be used in the SWC code:

1 status = Rte_Write_<p>_<o> (&array[0][0]);

5.2.6.6 Return Values

A subset of the RTE APIs returning the values instead of using OUT Parameters. In
the API section these API signatures defining a <return> value. In addition to the
following rules some of the APIs might specify additionally const qualifiers.
[SWS_Rte_07069] d The RTE Generator shall determine the <return> type accord-
ing the applicable ImplementationDataType of the DataPrototype for which the
API provides access. c(SRS_Rte_00059)
[SWS_Rte_08300] d A pointer return value of an RTE API shall be declared as pointer
to const with the means of the FUNC_P2CONST macro or P2CONST if the pointer is not
used to modify the addressed object. c(SRS_Rte_00059)

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Please note that the FUNC_P2CONST macro is applicable if the RTE API is implemented
as an real function and the P2CONST might be used if the RTE API is implemented as
a macro.
Requirement [SWS_Rte_08300] applies for instance for the RTE APIs Rte_Prm,
Rte_CData, Rte_IrvRead, Rte_IrvIRead in the cases where the API grants ac-
cess to composite data (arrays, structures, unions).
Please note, that the the implementation of the C data types are specified in section
5.3.4 "RTE Types Header File".
[SWS_Rte_07070] d If the DataPrototype is associated to a Primitive Imple-
mentation Data Type the RTE API shall return the value of the DataPrototype
for which the API provides access. The type name shall be equal to the shortName
of these ImplementationDataType. c(SRS_Rte_00059)

Example 5.10

Consider an RTE API call return a primitive as defined in the example 5.2 for a singly
instantiated SW-C. The signature of the API will be:
1 MyUint8 Rte_IRead_<re>_<p>_<o>(void);

Please note that the usage of Compiler Abstraction is not shown in the example.

[SWS_Rte_07071] d If the DataPrototype is associated to a Structure Imple-

mentation Data Type or Union Implementation Data Type, the RTE API
shall return a pointer to a variable holding the DataPrototype value provided by the
API. The type name shall be equal to the shortName of these Implementation-
DataType. c(SRS_Rte_00059)

Example 5.11

Consider an RTE API call return a structure as defined in the example 5.6 for a singly
instantiated SW-C. The signature of the API will be:
1
2 FUNC_P2CONST(RecA, RTE_VAR_FAST_INIT, RTE_CODE)
3 Rte_IRead_<re>_<p>_<o>(void);

Please note that the usage of Compiler Abstraction assumes that the SwAddrMethod
of the accessed VariableDataPrototype is named "VAR_FAST_INIT". Further
on the example does not respect the principles of API mapping.

[SWS_Rte_07072] d If the DataPrototype is associated to an Array Implemen-

tation Data Type the RTE API shall return an array expression (that is a pointer
to the array base type) pointing to variable holding the value of the DataPrototype
for which the API provides access. If the leaf ImplementationDataTypeElement
is typed by a SwBaseType the array type name shall be equal to the nativeDecla-
ration attribute of the SwBaseType. If the leaf ImplementationDataTypeEle-

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ment is typed by an ImplementationDataType the type name shall be equal to the

shortName of these ImplementationDataType. c(SRS_Rte_00059)

Example 5.12

Consider an RTE API call return an array as defined in the example 5.4 for a singly
instantiated SW-C. The signature of the API will be:
1 FUNC_P2CONST(unsigned char, RTE_VAR_POWER_ON_INIT, RTE_CODE)
2 Rte_IRead_<re>_<p>_<o>(void);

Please note that the usage of Compiler Abstraction assumes that the SwAddrMethod
of the accessed VariableDataPrototype is named "VAR_POWER_ON_INIT".
Further on the example does not respect the principles of API mapping.

Example 5.13

Consider an RTE API call return an array as defined in the example 5.5 for a singly
instantiated SW-C. The signature of the API will be:
1 FUNC_P2CONST(uint8, RTE_VAR_NO_INIT, RTE_CODE)
2 Rte_IRead_<re>_<p>_<o>(void);

Please note that the usage of Compiler Abstraction assumes that the SwAddrMethod
of the accessed VariableDataPrototype is named "VAR_NO_INIT". Further on
the example does not respect the principles of API mapping.

[SWS_Rte_07073] d If the DataPrototype is associated to a Pointer Implemen-

tation Data Type the RTE API shall return the value of the DataPrototype for
which the API provides access. The type name shall be equal to the shortName of
these ImplementationDataType. c(SRS_Rte_00059) Please not that in this case
the value is a pointer.
[SWS_Rte_07074] d If the DataPrototype is associated to a Redefinition Im-
plementation Data Type the RTE Generator shall determine the API return value
behaviour as described in [SWS_Rte_07070], [SWS_Rte_07071], [SWS_Rte_07072],
[SWS_Rte_07073], [SWS_Rte_07074] according the referenced Implementation-
DataType. Nevertheless except for Array Implementation Data Type the type
name shall be equal to the shortName of these ImplementationDataType. c
(SRS_Rte_00059)
Please note that Redefinition Implementation Data Type might redefine an
other Redefinition Implementation Data Type again.

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5.2.6.7 Return References

A subset of the RTE APIs returning a reference to the memory location where the data
can be accessed instead of using IN/OUT Parameters. In the API section these API
signatures defining a <return reference> value.
[SWS_Rte_06808] d A <return reference> shall use the FUNC_P2VAR or P2VAR
macro. c(SRS_BSW_00007)
[SWS_Rte_06809] d A <return reference> which uses either the P2VAR or
the FUNC_P2VAR macro shall use memclass AUTOMATIC and ptrclass RTE_DATA. c
(SRS_BSW_00007)
[SWS_Rte_07076] d The RTE Generator shall determine the <return reference>
type according the applicable ImplementationDataType of the DataPrototype
for which the API provides access. c(SRS_Rte_00059)
Please note, that the the implementation of the C data types are specified in section
5.3.4 "RTE Types Header File".
[SWS_Rte_07077] d If the DataPrototype is associated to a Primitive Imple-
mentation Data Type the RTE API shall return a pointer to variable holding the
data of the value of the DataPrototype for which the API provides access. The
type name shall be equal to the shortName of these ImplementationDataType. c
(SRS_Rte_00059)

Example 5.14

Consider an RTE API call return a reference to a primitive as defined in the example
5.2 for a singly instantiated SW-C. The signature of the API will be:
1 MyUint8 * Rte_IWriteRef_<re>_<p>_<o>(void);

Please note that the usage of Compiler Abstraction is not shown in the example.

[SWS_Rte_07078] d If the DataPrototype is associated to a Structure Imple-

mentation Data Type or Union Implementation Data Type the RTE API
shall return a pointer to variable holding the value of the DataPrototype for which
the API provides access. The type name shall be equal to the shortName of these
ImplementationDataType. c(SRS_Rte_00059)

Example 5.15

Consider an RTE API call return a reference to a structure as defined in the example
5.6 for a singly instantiated SW-C. The signature of the API will be:
1 RecA * Rte_IWriteRef_<re>_<p>_<o>(void);

Please note that the usage of Compiler Abstraction is not shown in the example.

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[SWS_Rte_07079] d If the DataPrototype is associated to an Array Implemen-

tation Data Type the RTE API shall return an array expression (that is a pointer
to the array base type) pointing to variable holding the value of the DataPrototype
for which the API provides access. If the leaf ImplementationDataTypeElement
is typed by a SwBaseType the array type name shall be equal to the nativeDecla-
ration attribute of the SwBaseType. If the leaf ImplementationDataTypeEle-
ment is typed by an ImplementationDataType the type name shall be equal to the
shortName of these ImplementationDataType. c(SRS_Rte_00059)

Example 5.16

Consider an RTE API call return a reference to an array as defined in the example 5.4
for a singly instantiated SW-C. The signature of the API will be:
1 unsigned char * Rte_IWriteRef_<re>_<p>_<o>(void);

Example 5.17

Consider an RTE API call return a reference to an array as defined in the example 5.5
for a singly instantiated SW-C. The signature of the API will be:
1 uint8 * Rte_IWriteRef_<re>_<p>_<o>(void);

Please note that the usage of Compiler Abstraction is not shown in the examples.

[SWS_Rte_07080] d If the DataPrototype is associated to a Pointer Implemen-

tation Data Type the RTE API shall return a pointer pointing to variable hold-
ing the value of the DataPrototype for which the API provides access. The type
name shall be equal to the shortName of these ImplementationDataType. c
(SRS_Rte_00059) Please not that in this case the value is a pointer again.
[SWS_Rte_07081] d If the DataPrototype is associated to a Redefinition Im-
plementation Data Type the RTE Generator shall determine the API return value
behaviour as described in [SWS_Rte_07077], [SWS_Rte_07078], [SWS_Rte_07079],
[SWS_Rte_07080], [SWS_Rte_07081] according the referenced Implementation-
DataType. Nevertheless except for Array Implementation Data Type the type
name shall be equal to the shortName of these ImplementationDataType. c
(SRS_Rte_00059)
Please note that Redefinition Implementation Data Type might redefine an
other Redefinition Implementation Data Type again.

5.2.6.8 Error Handling

In RTE, error and status information is defined with the data type Std_ReturnType,
see Section 5.5.1.

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It is possible to distinguish between infrastructure errors and application errors. Infras-

tructure errors are caused by a resource failure or an invalid input parameter. Infras-
tructure errors usually occur in the basic software or hardware along the communica-
tion path of a data element. Application errors are reported by a SW-C or by AUTOSAR
services. RTE has the capability to treat application errors that are forwarded
by return value in client server communication or
by signal invalidation in sender receiver communication with data semantics.
Errors that are detected during an RTE API call are notified to the caller using the APIs
return value.
[SWS_Rte_01034] d Error states (including no error) shall only be passed as return
value of the RTE API to the AUTOSAR SW-C. c(SRS_Rte_00094)
Requirement [SWS_Rte_01034] ensures that, irrespective of whether the API is block-
ing or non-blocking, the error is collected at the same time the data is made available
to the caller thus ensuring that both items are accessed consistently.
Certain RTE API calls operate asynchronously from the underlying communication
mechanism. In this case, the return value from the API indicates only errors detected
during that API call. Errors detected after the API has terminated are returned using a
different mechanism [SWS_Rte_01111]. RTE also provides an implicit API for direct
access to virtually shared memory. This API does not return any errors. The underlying
communication is decoupled. Instead, an API is provided to pick up the current status
of the corresponding data element.

5.2.6.9 Success Feedback

The RTE supports the notification of results of transmission attempts to an AUTOSAR

software-component.
The Rte_Feedback API [SWS_Rte_01083] or the Rte_IFeedback API
[SWS_Rte_07367] can be configured to return the transmission result as either
a blocking or non-blocking API or via activation of a runnable entity.

5.2.7 Unconnected Ports

[SWS_Rte_01329] d The RTE shall handle both require and provide ports that are not
connected. c(SRS_Rte_00139)
The handling of require ports as an error is described in requirement
[SWS_Rte_05099].
[SWS_Rte_06030] d The RTE shall consider a PRPortPrototype as always con-
nected. c(SRS_Rte_00139)

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Note: [SWS_Rte_06030] is the consequence of [TPS_SWCT_01573]. This is because

a PRPortPrototype is logically an overlay of require and provide semantics hence
the PRPortPrototype needs no further explicitly defined connection in the form of
an SwConnector or signal mapping.
RTE event handling and the API calls for unconnected ports are specified to behave
as if the port was connected but the remote communication point took no action.
Unconnected require ports are regarded by the RTE generator as an invalid
configuration (see [SWS_Rte_03019]) if the strict handling has been enabled
(see [SWS_Rte_05099]).

5.2.7.1 Data Elements

5.2.7.1.1 Explicit Communication

[SWS_Rte_01330] d A Rte_Read API for an unconnected require port typed

by a SenderReceiverInterface or NvDataInterface shall return the
RTE_E_UNCONNECTED code and provide the initValue as if a sender was
connected but did not transmit anything. c(SRS_Rte_00094, SRS_Rte_00139,
SRS_Rte_00200)
[SWS_Rte_07663] d A Rte_DRead API for an unconnected require port typed by a
SenderReceiverInterface or NvDataInterface shall return the initValue
as if a sender was connected but did not transmit anything. c(SRS_Rte_00139,
SRS_Rte_00200)
Requirements [SWS_Rte_01330] and [SWS_Rte_07663] apply to elements with
"data" semantics and therefore "last is best" semantics. This means that the initial
value will be returned.
[SWS_Rte_01331] d A blocking or non-blocking Rte_Receive API for an
unconnected require port typed by a SenderReceiverInterface shall re-
turn RTE_E_UNCONNECTED immediately. c(SRS_Rte_00094, SRS_Rte_00107,
SRS_Rte_00110, SRS_Rte_00139, SRS_Rte_00200)
The existence of blocking and non-blocking Rte_Read, Rte_DRead and
Rte_Receive API calls is controlled by the presence of VariableAccesses in the
dataReceivePointByValue or dataReceivePointByArgument role, DataRe-
ceivedEvents and WaitPoints within the SW-C description [SWS_Rte_01288],
[SWS_Rte_01289] and [SWS_Rte_01290].
[SWS_Rte_01344] d A blocking or non-blocking Rte_Feedback API for a Variable-
DataPrototype of an unconnected provide port shall return RTE_E_UNCONNECTED
immediately. c(SRS_Rte_00094, SRS_Rte_00122, SRS_Rte_00139)
The existence of blocking and non-blocking Rte_Feedback API is controlled by the
presence of VariableAccesses in the dataSendPoint role, DataSendComplet-
edEvents and WaitPoints within the SW-C description for a VariableDataPro-

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totype with acknowledgement enabled, see [SWS_Rte_01283], [SWS_Rte_01284],

[SWS_Rte_01285] and [SWS_Rte_01286].
[SWS_Rte_01332] d The Rte_Send or Rte_Write API for an unconnected provide
port typed by a SenderReceiverInterface or NvDataInterface shall discard
the input parameters and return RTE_E_OK. c(SRS_Rte_00139)
The existence of Rte_Send or Rte_Write is controlled by the presence of
VariableAccesses in the dataSendPoint role within the SW/C description
[SWS_Rte_01280] and [SWS_Rte_01281].
[SWS_Rte_03783] d The Rte_Invalidate API for an unconnected provide port
typed by a SenderReceiverInterface shall return RTE_E_OK. c(SRS_Rte_00139)
The existence of Rte_Invalidate is controlled by the presence of VariableAc-
cesses in the dataSendPoint role within the SW/C description for a Variable-
DataPrototype which is marked as invalidatable by an associated Invalidation-
Policy. The handleInvalid attribute of the InvalidationPolicy has to be set
to keep, replace or externalReplacement to enable the invalidation support for
this dataElement ([SWS_Rte_01282]).

5.2.7.1.2 Implicit Communication

[SWS_Rte_07378] d An Rte_IFeedback API for a VariableDataPrototype of

an unconnected provide port shall return RTE_E_UNCONNECTED immediately. c
(SRS_Rte_00139, SRS_Rte_00185)
The existence of an Rte_IFeedback API is controlled by the presence of Vari-
ableAccesses in the dataWriteAccess role, and DataWriteCompletedEvents
within the SWC description for a VariableDataPrototype with acknowledgement
enabled, see [SWS_Rte_07646], [SWS_Rte_07647].
[SWS_Rte_01346] d An Rte_IRead API for an unconnected require port typed by a
SenderReceiverInterface or NvDataInterface shall return the initial value. c
(SRS_Rte_00139)
The existence of Rte_IRead is controlled by the presence of a VariableAccess in
the dataReadAccess role in the SW-C description [SWS_Rte_01301].
[SWS_Rte_01347] d An Rte_IWrite API for an unconnected provide port typed by a
SenderReceiverInterface or NvDataInterface shall discard the written data.
c(SRS_Rte_00139)
The existence of Rte_IWrite is controlled by the presence of a VariableAccess in
the dataWriteAccess role in the SW-C description [SWS_Rte_01302].
[SWS_Rte_03784] d An Rte_IInvalidate API for an unconnected provide port
typed by a SenderReceiverInterface shall perform no action. c(SRS_Rte_00139)

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The existence of Rte_IInvalidate is controlled by the presence of a VariableAc-

cess in the dataWriteAccess role in the SW-C description for a VariableDat-
aPrototype which is marked as invalidatable by an associated InvalidationPol-
icy. The handleInvalid attribute of the InvalidationPolicy has to be set to
keep, replace or externalReplacement to enable the invalidation support for this
dataElement ([SWS_Rte_03801]).
[SWS_Rte_03785] d An Rte_IStatus API for an unconnected require port
typed by a SenderReceiverInterface shall return RTE_E_UNCONNECTED. c
(SRS_Rte_00094, SRS_Rte_00139, SRS_Rte_00200)
The existence of Rte_IStatus is controlled by the presence of a VariableAc-
cess in the dataReadAccess role in the SW-C description for a VariableDat-
aPrototype with data element outdated notification or data element invalidation
[SWS_Rte_02600].

5.2.7.2 Mode Switch Ports

For the mode user an unconnected mode switch port behaves as if it was connected
to a mode manager that never sends a mode switch notification.
[SWS_Rte_02638] d A Rte_Mode API for an unconnected mode switch port of a mode
user shall return the initial state. c(SRS_Rte_00139)
[SWS_Rte_02639] d Regarding the modes of an unconnected mode switch port of a
mode user, the mode disabling dependencies on the initial mode shall be permanently
active and the mode disabling dependencies on all other modes shall be inactive. c
(SRS_Rte_00139)
[SWS_Rte_02640] d Regarding the modes of an unconnected mode switch port of a
mode user, RTE will only generate a SwcModeSwitchEvent for entering the initial
mode which occurs directly after startup. c(SRS_Rte_00139)
[SWS_Rte_02641] d The Rte_Switch API for an unconnected mode switch port
of the mode manager shall discard the input parameters and return RTE_E_OK. c
(SRS_Rte_00139)
[SWS_Rte_02642] d A blocking or non blocking Rte_SwitchAck API for an uncon-
nected mode switch port of the mode manager shall return RTE_E_UNCONNECTED
immediately. c(SRS_Rte_00139)
[SWS_Rte_01375] d A provided mode switch port of a mode manager shall be
considered unconnected only if there are no connections at the composition level and
no ModeAccessPoint exists for the provided mode switch port and no synchro-
nizedModeGroup refers to the provided mode switch port. c(SRS_Rte_00139)

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5.2.7.3 Client-Server

[SWS_Rte_01333] d The Rte_Result API for an unconnected asynchronous require

port typed by a ClientServerInterface shall return RTE_E_UNCONNECTED imme-
diately. c(SRS_Rte_00094, SRS_Rte_00139, SRS_Rte_00200)
[SWS_Rte_01334] d The Rte_Call API for an unconnected require port typed by
a ClientServerInterface shall return RTE_E_UNCONNECTED immediately. c
(SRS_Rte_00094, SRS_Rte_00139, SRS_Rte_00200)
[SWS_Rte_04530] d If a client/server communication is inter-ECU, then for each
ClientServerOperation the DataMappings element shall contain a mapping to at least
one COM signal or being referenced at least by a LdCom I-PDU, otherwise the
ClientServerOperation shall be treated as if it is part of an unconnected port. c
(SRS_Rte_00094, SRS_Rte_00139, SRS_Rte_00200)

5.2.7.4 External Triggers

For unconnected RPortPrototypes the associated ExternalTriggerOccurre-

dEvents will never get fired (i.e. it behaves as if the remote communication partner
never triggers the event).
[SWS_Rte_06210] d The Rte_Trigger API for an unconnected PPortPro-
totypes typed by a TriggerInterface shall discard the trigger request
and return RTE_E_OK. c(SRS_Rte_00094, SRS_Rte_00139, SRS_Rte_00162,
SRS_Rte_00200)

5.2.8 Non-identical port interfaces

Two ports are permitted to be connected provided that they are characterized by com-
patible, but not necessarily identical, interfaces. For the full definition of whether two
interfaces are compatible, see the Software Component Template [2].
[SWS_Rte_01368] d The RTE generator shall report an error if the [constr_1036] and
the [constr_1069] are violated so if two connected ports are connected by incompatible
interfaces. c(SRS_Rte_00137)
A significant issue in determining whether two interfaces are compatible is that the
interface characterizing the require port may be a strict subset of the interface char-
acterizing the provide port. This means that there may be provided data elements or
operations for which there is no corresponding element in the require port. This can be
imagined as a multi-strand wire between the two ports (the assembly connector) where
each strand represents the connection between two data elements or operations, and
where some of the strands from the provide end are not connected to anything at the
require end.

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Define, for the purposes of this section, an unconnected element as a data element
or operation that occurs in the provide interface, but for which no corresponding data
element or operation occurs in a particular R-Ports interface.
[SWS_Rte_01369] d For each data element or operation within the provide interface,
every connected requirer with an unconnected element must be treated as if it were
not connected. c(SRS_Rte_00137)
Note that requirement [SWS_Rte_01369] means that in the case of a 1:n Sender-
Receiver the Rte_Write call may transmit to some but not all receivers.
The extreme is if all connected requirers have an unconnected element:
[SWS_Rte_01370] d For a data element or operation in a provide interface which
is an unconnected element in every connected R-Port, the generated Rte_Send,
Rte_Write, Rte_IWrite, or Rte_IWriteRef APIs must act as if the port were
unconnected. c(SRS_Rte_00137)
See Section 5.2.7 for the required behavior in this case.

5.3 RTE Modules

Figure 5.1 defines the relationship between header files and how those files are in-
cluded by modules implementing AUTOSAR software-components and by general,
non-component, code.

Figure 5.1: Relationships between RTE Header Files

The output of an RTE generator can consist of both generated code and configuration
for library code that may be supplied as either object code or source code. Both

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configured and generated code reference standard definitions that are defined in the
RTE Header File.
The relationship between the RTE header file, Application Header Files, the Lifecycle
Header File and AUTOSAR software-components is illustrated in Figure 5.1.
In general a RTE can be partitioned in several files. The partitioning depends from
the RTE vendors software design and generation strategy. Nevertheless it shall be
possible to clearly identify code and header files which are part of the RTE module.
[SWS_Rte_07139] d Every file of the RTE beside Rte.h and Rte.c shall be named with
the prefix Rte_. c(SRS_BSW_00300)

5.3.1 RTE Header File

The RTE header file defines fixed elements of the RTE that do not need to be generated
or configured for each ECU.
[SWS_Rte_01157] d For C/C++ AUTOSAR software-components, the name of the
RTE header file shall be Rte.h. c(SRS_BSW_00300)
Typically the contents of the RTE header file are fixed for any particular implementation
and therefore it is not created by the RTE generator. However, customization for each
generated RTE is not forbidden.
[SWS_Rte_01164] d The RTE header file shall include the file Std_Types.h. c
(SRS_Rte_00149, SRS_Rte_00150, SRS_BSW_00353)
The file Std_Types.h is the standard AUTOSAR file [31] that defines basic data types
including platform specific definitions of unsigned and signed integers and provides
access to the compiler abstraction.
The contents of the RTE header file are not restricted to standardized elements that
are defined within this document it can also contain definitions specific to a particular
implementation.

5.3.2 Lifecycle Header File

[SWS_Rte_08309] d The RTE generator shall provide declarations for RTE and
SchM Lifecycle APIs (see Section 5.8 and 6.7) through the Lifecycle header file. c
(SRS_Rte_00051)
[SWS_Rte_01158] d For C/C++ AUTOSAR software-components, the name of the life-
cycle header file shall be Rte_Main.h. c(SRS_BSW_00300)
[SWS_Rte_01159] d The lifecycle header file shall include the RTE header file. c
(SRS_Rte_00051)

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5.3.3 Application Header File

The application header file [SRS_Rte_00087] is central to the definition of the RTE API.
An application header file defines the RTE API and any associated data structures that
are required by the SW-C to use the RTE implementation. But the application header
file is not allowed to create objects in memory.
[SWS_Rte_01000] d The RTE generator shall create an application header file for each
software-component type (excluding ParameterSwComponentTypes and NvBlock-
SwComponentTypes) defined in the input. c(SRS_Rte_00087, SRS_Rte_00024,
SRS_Rte_00140)
[SWS_Rte_03786] d The application header file shall not contain code that creates
objects in memory. c(SRS_Rte_00087, SRS_BSW_00308)
RTE generation consists of two phases; an initial RTE Contract phase and a second
RTE Generation phase (see Section 2.3). Object-code components are compiled
after the first phase of RTE generation and therefore the application header file should
conform to the form of definitions defined in Sections 5.4.1 and 5.5.2. In contrast,
source-code components are compiled after the second phase of RTE generation and
therefore the RTE generator produces an optimized application header file based on
knowledge of component instantiation and deployment.

5.3.3.1 File Name

[SWS_Rte_01003] d The name of the Application Header File of an AUTOSAR soft-

ware component shall be Rte_[Byps_]<name>.h. <name> is the AUTOSAR soft-
ware component type name. [Byps_] is an optional infix used when component
wrapper method for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00300)

Example 5.18

The following declaration in the input XML:

<APPLICATION-SW-COMPONENT-TYPE>
<SHORT-NAME>Source</SHORT-NAME>
</APPLICATION-SW-COMPONENT-TYPE>

should result in the application header file Rte_Source.h being generated when the
component wrapper method for bypass support is disabled.

The component type name is used rather than the component instance name for two
reasons; firstly the same component code is used for all component instances and,
secondly, the component instance name is an internal identifier, and should not appear
outside of generated code.

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5.3.3.2 Scope

RTE supports two approaches for the scope of the application header file, a SW-C
based, and a runnable based approach.
1. Always, the application header file provides only the API that is specific for one
atomic SW-C, see [SWS_Rte_01004].
2. The scope of the application header file can be further reduced to one runnable
by using the mechanism described in [SWS_Rte_02751].
Many of the RTE APIs are specific to runnables. The restrictions for the usage of the
generated APIs are defined in the Existence parts of each API subsection in 5.6. To
prevent run time errors by the misuse of APIs that are not supported for a runnable, it
is recommended to use the runnable based approach of the application header file.
[SWS_Rte_01004] d The application header file for a component shall contain
only information relevant to that component. c(SRS_Rte_00087, SRS_Rte_00017,
SRS_Rte_00167)
[SWS_Rte_02751] d If the pre-compiler Symbol RTE_RUNNABLEAPI_<rn> is defined
for a runnable with short name <rn> when the application header file is included,
the application header file shall not declare APIs that are not valid to be used by the
runnable rn. c(SRS_Rte_00017)
For example, to restrict the application header file of the SW-C mySwc to the API of the
runnable myRunnable, the following sequence can be used:
1 #define RTE_RUNNABLEAPI_myRunnable
2 #include <Rte_mySwc.h>
3
4 // runnable source code

Note that this mechanism does not support to restrict the application header file to the
super set of two or more runnable APIs. In other words, runnables should be kept in
separate source files, if the runnable based approach is used.
Requirements [SWS_Rte_01004] and [SWS_Rte_02751] mean that compile time
checks ensure that a component (or runnable) that uses the application header file
only accesses the generated data structures and functions to which it has been con-
figured. Any other access, e.g. to fields not defined in the customized data structures
or RTE API, will fail with a compiler error [SRS_Rte_00017].
The definitions of the RTE API contained in the application header file can be opti-
mized during the RTE Generation phase when the mapping of software-components
to ECUs and the communication matrix is known. Consequently multiple application
header files must not be included in the same source module to avoid conflicting defi-
nitions of the RTE API definitions that the files contains.
Listing 5.1 illustrates the code structure for the declaration of the entry point of a
runnable entity that provides the implementation for a ServerPort in component c1.
The RTE generator is responsible for creating the API and tasks used to execute the

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server and the symbol name of the entry point is extracted from the attribute symbol
of the runnable entity. The example shows that the first parameter of the entry point
function is the software-components instance handle [SWS_Rte_01016].
Listing 5.1: Skeleton server runnable entity
1 #include <Rte_c1.h>
2
3 void runnable_entry(Rte_Instance instance)
4 {
5 /* ... server code ... */
6 }

Listing 5.1 includes the component-specific application header file Rte_c1.h created
by the RTE generator. The RTE generator will also create the supporting data struc-
tures and the task body to which the runnable is mapped.
The RTE is also responsible for preventing conflicting concurrent accesses when the
runnable entity implementing the server operation is triggered as a result of a request
from a client received via the communication service or directly via inter-task commu-
nication.

5.3.3.3 File Contents

Multiple application header file must not be included in the same module
([SWS_Rte_01004]) and therefore the file contents should contain a mechanism to
enforce this requirement.
[SWS_Rte_01006] d An application header file shall include the following mechanism
before any other definitions.
1 #ifdef RTE_APPLICATION_HEADER_FILE
2 #error Multiple application header files included.
3 #endif /* RTE_APPLICATION_HEADER_FILE */
4 #define RTE_APPLICATION_HEADER_FILE

c(SRS_Rte_00087)
[SWS_Rte_07131] d The application header file shall include the Application Types
Header File. c(SRS_Rte_00087)
The name of the Application Types Header File is defined in Section 5.3.6.
[SWS_Rte_07924] d The application header file shall include the RTE Data Handle
Types Header File (see Section 5.3.5). c(SRS_Rte_00087)
[SWS_Rte_01005] d The application header file shall be valid for both C and C++
source. c(SRS_Rte_00126, SRS_Rte_00138)
Requirement [SWS_Rte_01005] is met by ensuring that all definitions within the appli-
cation header file are defined using C linkage if a C++ compiler is used.

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[SWS_Rte_03709] d All definitions within in the application header file shall be pre-
ceded by the following fragment;
1 #ifdef __cplusplus
2 extern "C" {
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)
[SWS_Rte_03710] d All definitions within the application header file shall be suffixed
by the following fragment;
1 #ifdef __cplusplus
2 } /* extern "C" */
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)

5.3.3.3.1 Instance Handle

The RTE uses an instance handle to identify different instances of the same component
type. The definition of the instance handle type [SWS_Rte_01148] is unique to each
component type and therefore should be included in the application header file.
[SWS_Rte_01007] d The application header file shall define the type of the instance
handle for the component. c(SRS_Rte_00012)
All runnable entities for a component are passed the same instance handle type (as
the first formal parameter [SWS_Rte_01016]) and can therefore use the same type
definition from the components application header file.
The example 5.24 illustrates the definition of a instance handle.

5.3.3.3.2 Runnable Entity Prototype

The application header file also includes a prototype for each runnable entity entry
point ([SWS_Rte_01132]) and the API mapping ([SWS_Rte_01274]).

5.3.3.3.3 Initial Values

[SWS_Rte_05078] d The Application Header File shall define the init value of non-
queued VariableDataPrototypes of sender receiver or non volatile data ports and
typed by an ImplementationDataType or ApplicationDataType of category
VALUE.
1 #define Rte_InitValue_<Port>_<DEPType> <initValue><suffix>

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where <Port> is the PortPrototype shortName, <DEPType> is the short-

Name of the VariableDataPrototype, and <initValue> is the initValue spec-
ified in the NonqueuedReceiverComSpec respectively NonqueuedSenderCom-
Spec. <suffix> shall be "U" for unsigned data types and empty for signed data
types. c(SRS_Rte_00068, SRS_Rte_00087, SRS_Rte_00108)
Note that the initValue defined may be subject to change due to the fact that for
COM configuration it may be possible to change this value during ECU Configuration
or even post-build time.

5.3.3.3.4 PerInstanceMemory

The Application Header File shall type definitions for PerInstanceMemorys as defined
in Chapter 5.2.5, [SWS_Rte_07133].

5.3.3.3.5 RTE-Component Interface

The application header file defines the interface between a component and the RTE.
The interface consists of the RTE API for the component and the prototypes for runn-
able entities. The definition of the RTE API requires that both relevant data structures
and API calls are defined.
The data structures required to support the API are defined in the Application Header
file (CDS) (see chapter 5.3.3), in the Application Types Header file (see chapter 5.3.6),
in the RTE Types Header file (see chapter 5.3.1) and in the RTE Data Handle Types
Header file (see chapter 5.3.5).
The data structure types are declared in the header files whereas the instances are
defined in the generated RTE. The necessary data structures for object-code software-
components are defined in chapter 5.5.2 and chapter 5.4.2.
The RTE generator is required [SWS_Rte_01004] to limit the contents of the applica-
tion header file to only that information that is relevant to that component type. This
requirement includes the definition of the API mapping. The API mapping is described
in chapter 5.2.6.
Requirement [SWS_Rte_01004] and [SWS_Rte_01006] ensure that attempts to invoke
invalid API calls will be rejected as a compile-time error [SRS_Rte_00017].

5.3.3.3.6 Application Errors

The concept of client server supports application specific error codes. Symbolic
names for Application Errors are defined in the application header file to avoid con-
flicting definitions between several AtomicSwComponentTypes mapped one ECU.
See [SWS_Rte_02575] and [SWS_Rte_02576].

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5.3.4 RTE Types Header File

The RTE Types Header File includes the RTE specific type declarations derived from
the ImplementationDataTypes created from the definitions of AUTOSAR meta-
model classes within the RTE generators input. The available meta-model classes
are defined by the AUTOSAR software-component template and include classes for
defining primitive values, structures, arrays and pointers.
The types declared in the RTE Types Header File intend to be used for the implemen-
tation of RTE internal data buffers as well as for RTE API.
[SWS_Rte_01160] d The RTE generator shall create the RTE Types Header File in-
cluding the type declarations corresponding to the ImplementationDataTypes de-
fined in the input configuration as well as the RTE implementation types. c()
The RTE Data Types header file should be output for RTE Contract and RTE Gener-
ation phases.

5.3.4.1 File Contents

[SWS_Rte_02648] d The RTE Types Header File shall include the type declarations,
structure defintions, and union definitions for all the AUTOSAR Data Types according
to [SWS_Rte_07104], [SWS_Rte_07110], [SWS_Rte_06706], [SWS_Rte_06707],
[SWS_Rte_06708] [SWS_Rte_07111], [SWS_Rte_07114], [SWS_Rte_06812],
[SWS_Rte_07144], [SWS_Rte_06813], [SWS_Rte_07109] and [SWS_Rte_07148]
depending on the values of attributes typeEmitter and nativeDeclaration but
irrespective of their use by the generated RTE. c()
The attribute typeEmitter controls which part of the AUTOSAR toolchain is sup-
posed to provide data type definitions. For legacy reasons the RTE generator is sup-
posed to generate the corresponding data type if the ImplementationDataType
defines no typeEmitter.
[SWS_Rte_06709] d The RTE generator shall generate the corresponding data type
definition if the value of attribute typeEmitter is NOT defined. c()
[SWS_Rte_06710] d The RTE generator shall generate the corresponding data type
definition if the value of attribute typeEmitter is set to "RTE". c()
[SWS_Rte_06711] d The RTE generator shall reject configurations where the value
of the attribute typeEmitter is set to "RTE" and the ImplementationDataType
references a SwBaseType without defined nativeDeclaration. c()
[SWS_Rte_06712] d The RTE generator shall silently not generate the corresponding
data type definition if the value of attribute typeEmitter is set to anything else but
"RTE". c()
This requirement ensures the availability of ImplementationDataTypes for the in-
ternal use in AUTOSAR software components.

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Nevertheless the RTE Types Header File does not contain any data type belonging
to an ImplementationDataType where typeEmitter is set to anything else but
"RTE" regardless if the ImplementationDataType references SwBaseTypes and if
this SwBaseTypes define nativeDeclarations.
[SWS_Rte_08732] d The RTE generator shall generate the type
Rte_Cs_TransactionHandleType of the transaction handle for inter-ECU
Client-Server communication as a structure:
typedef struct {
uint16 clientId;
uint16 sequenceCounter;
} Rte_Cs_TransactionHandleType;

where clientId and sequenceCounter contain the client identifier and sequence
counter as specified in [SWS_Rte_02649].
c()
The types header file may need types in terms of BSW types (from the file
Std_Types.h) or from the implementation specific RTE header file to declare types.
However, since the RTE header file includes the file Std_Types.h already so only the
RTE header file needs direct inclusion within the types header file.
[SWS_Rte_01163] d The RTE Types Header File shall include the RTE Header File. c
(SRS_BSW_00353)

5.3.4.2 Classification of Implementation Data Types

The type model ImplementationDataTypes is able to express following kinds of

data types:
Primitive Implementation Data Type
Array Implementation Data Type
Structure Implementation Data Type
Union Implementation Data Type
Redefinition Implementation Data Type
Pointer Implementation Data Type
A Primitive Implementation Data Type is classified that it directly refers by its Sw-
DataDefProps to a SwBaseType in the role baseType. The category attribute
is set to VALUE.
An Array Implementation Data Type is classified that it defines Implementation-
DataTypeElements for each dimension of the array. The swArraySize specifies
the number of array elements of the dimension. The category attribute Array Imple-
mentation Data Type is set to ARRAY.

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A Structure Implementation Data Type is categorized that it has Implementation-

DataTypeElements. The category attribute of the ImplementationDataType
is set to STRUCTURE. Each ImplementationDataTypeElement it self can be one
of the listed kinds again.
A Union Implementation Data Type is categorized that it has Implementation-
DataTypeElements. The category attribute of the ImplementationDataType
is set to UNION. Each ImplementationDataTypeElement it self can be one of the
listed kinds again.
A Redefinition Implementation Data Type is classified that it refers to other Imple-
mentationDataTypes. The category attribute of the referring Implementation-
DataType has to be set to TYPE_REFERENCE.
A Pointer Implementation Data Type is classified that its SwDataDefProps has a sw-
PointerTargetProps attribute. The swDataDefProps in the role swPointer-
TargetProps is specifying the target to which the pointer refers. The category
attribute of the ImplementationDataType has to be set to DATA_REFERENCE.

5.3.4.3 Primitive Implementation Data Type

The RTE Types Header File declares C types for all Primitive Implementation
Data Types where the referred BaseType has a nativeDeclaration attribute.
[SWS_Rte_07104] d For each Primitive Implementation Data Type with a
nativeDeclaration attribute, the RTE Types Header File shall include the corre-
sponding type declaration as:
typedef <nativeDeclaration> <name>;
where <nativeDeclaration> is the nativeDeclaration attribute of the re-
ferred BaseType and <name> is the Implementation Data Type symbol of the
Primitive Implementation Data Type. c(SRS_Rte_00055, SRS_Rte_00166,
SRS_Rte_00168, SRS_BSW_00353)

MyUint8 :
+swDataDefProps :SwDataDefProps +baseType MyUint8Base :SwBaseType
ImplementationDataType

category = VALUE nativeDeclaration = unsigned char

typedef unsigned char

MyUint8OfVendorNil;

Figure 5.2: Primitive Implementation Data Type

Note: All Primitive Implementation Data Types where the referred Base-
Type has no nativeDeclaration attribute resulting not in a type declaration. This
is intended to prevent the redeclaration of the predefined Standard Types and Platform
Types.

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uint8 :
+swDataDefProps :SwDataDefProps +baseType uint8 :SwBaseType
ImplementationDataType

category = VALUE

/* no typedef is generated, implementation use one from Platform_Types.h */

Figure 5.3: Primitive Implementation Data Type included from Platform_Types.h

[SWS_Rte_07105] d If more than one Primitive Implementation Data Type

with equal shortName and equal nativeDeclaration attribute of the referred
BaseType are defined, the RTE Types Header File shall include only once the cor-
responding type declaration according to [SWS_Rte_07104]. c(SRS_Rte_00165)
Note: This avoids the redeclaration of C types due to the multiple descriptions of equiv-
alent Primitive Implementation Data Types in the ECU extract.

5.3.4.4 Array Implementation Data Type

In addition to the primitive data-types defined in the previous section, it is also neces-
sary for the RTE generator to declare composite data-types: arrays and records.
An array definition following information:
the array type
the number of dimensions
the number of elements for each dimension.
[SWS_Rte_07110] d For each Array Implementation Data Type which leaf
ImplementationDataTypeElement is typed by a BaseType, the RTE Types
Header File shall include the corresponding type declaration as:
typedef <nativeDeclaration> <name>[<size 1>]{[<size 2>]...
[<size n>]};
where <nativeDeclaration> is the nativeDeclaration attribute of the referred
BaseType,
<name> is the Implementation Data Type symbol of the Array Implemen-
tation Data Type,
[<size x>] is the arraySize of the Arrays ImplementationDataTypeElement.
For each array dimension defined by one Arrays ImplementationDataTypeEle-
ment one array dimension definition [<size x>] is defined. The array dimension def-
initions [<size 1>], [<size 2>] ... [<size n>] ordered from the root to the
leaf ImplementationDataTypeElement. c(SRS_Rte_00055, SRS_Rte_00164)

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[SWS_Rte_07111] d For each Array Implementation Data Type which leaf

ImplementationDataTypeElement is typed by an ImplementationDataType,
the RTE Types Header File shall include the corresponding type declaration as:
typedef <type> <name>[<size 1>]{[<size 2>]...[<size n>]};
where <type> is the shortName of the referred ImplementationDataType,
<name> is the Implementation Data Type symbol of the Array Implemen-
tation Data Type,
[<size x>] is the arraySize of the Arrays ImplementationDataTypeElement.
For each array dimension defined by one Arrays ImplementationDataTypeEle-
ment one array dimension definition [<size x>] is defined.
The array dimension definitions [<size 1>], [<size 2>] ... [<size n>]
ordered from the root to the leaf ImplementationDataTypeElement. c
(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_06706] d For each Array Implementation Data Type which last
ImplementationDataTypeElement is of category STRUCTURE, the RTE Types
Header File shall include the corresponding type declaration as:
typedef struct { <elements> } <name>[<size 1>]{[<size 2>]...
[<size n>]};
where <elements> is the record element specification and
<name> is the Implementation Data Type symbol of the Array Implemen-
tation Data Type.
For each record element defined by one ImplementationDataTypeElement one
record element specification <elements> is defined. The record element specifica-
tions are ordered according the order of the related ImplementationDataTypeEle-
ments in the input configuration.
Sequent record elements are separated with a semicolon.
[<size x>] is the arraySize of the Arrays ImplementationDataTypeElement.
For each array dimension defined by one Arrays ImplementationDataTypeEle-
ment one array dimension definition [<size x>] is defined.
The array dimension definitions [<size 1>], [<size 2>] ... [<size n>] or-
dered from the root to the last ImplementationDataTypeElement belonging to the
array definition. c(SRS_Rte_00055, SRS_Rte_00164)
The definition of the record element specification is defined in section 5.3.4.6.
[SWS_Rte_06707] d For each Array Implementation Data Type which last Im-
plementationDataTypeElement is of category UNION, the RTE Types Header File
shall include the corresponding type declaration as:
typedef union { <elements> } <name>[<size 1>]{[<size 2>]...
[<size n>]};

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where <elements> is the record element specification and

<name> is the Implementation Data Type symbol of the Array Implemen-
tation Data Type.
For each record element defined by one ImplementationDataTypeElement one
record element specification <elements> is defined. The record element specifica-
tions are ordered according the order of the related ImplementationDataTypeEle-
ments in the input configuration.
Sequent record elements are separated with a semicolon.
[<size x>] is the arraySize of the Arrays ImplementationDataTypeElement.
For each array dimension defined by one Arrays ImplementationDataTypeEle-
ment one array dimension definition [<size x>] is defined.
The array dimension definitions [<size 1>], [<size 2>] ... [<size n>] or-
dered from the root to the last ImplementationDataTypeElement belonging to the
array definition. c(SRS_Rte_00055, SRS_Rte_00164)
The definition of the record element specification is defined in section 5.3.4.6.
[SWS_Rte_06708] d For each Array Implementation Data Type which last Im-
plementationDataTypeElement is of category DATA_REFERENCE, the RTE Types
Header File shall include the corresponding type declaration as:
typedef <tqlA> <addtqlA> <type> * <tqlB> <addtqlB> <name>
[<size 1>]{[<size 2>]...[<size n>]};
where <name> is the Implementation Data Type symbol of the Array Im-
plementation Data Type and
[<size x>] is the arraySize of the Arrays ImplementationDataTypeElement.
For each array dimension defined by one Arrays ImplementationDataTypeEle-
ment one array dimension definition [<size x>] is defined. The array dimension
definitions [<size 1>], [<size 2>] ... [<size n>] ordered from the root to
the last ImplementationDataTypeElement belonging to the array definition. c
(SRS_Rte_00055, SRS_Rte_00164)
For the definition of <tqlA> and <tqlB> see [SWS_Rte_07149] and
[SWS_Rte_07166].
For the definition of <addtqlA> and <addtqlB> see [SWS_Rte_07036] and
[SWS_Rte_07037].
[SWS_Rte_07112] d If more than one Array Implementation Data Type with
equal shortName of the ImplementationDataType and equal nativeDeclara-
tion attribute of the referred BaseType are defined, the RTE Types Header File shall
include only once the corresponding type declaration according to [SWS_Rte_07110].
c(SRS_Rte_00165)
[SWS_Rte_07113] d If more than one Array Implementation Data Type with
equal shortName of the ImplementationDataType and equal shortName of the

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referred ImplementationDataType are defined, the RTE Types Header File shall
include only once the corresponding type declaration according to [SWS_Rte_07111].
c(SRS_Rte_00165)
Note: This avoids the redeclaration of C types due to the multiple descriptions of equiv-
alent Array Implementation Data Types in the ECU extract.
ArrA :ImplementationDataType ArrAElement :
+subElement ImplementationDataTypeElement
category = ARRAY
category = VALUE
arraySize = 5

typedef unsigned char ArrA[5];

+swDataDefProps

:SwDataDefProps +baseType MyUint8Base :SwBaseType

nativeDeclaration = unsigned char

Figure 5.4: Example of a single dimension array typed by an BaseType

FirstDim : SecondDim :
ArrArrD :
+subElement ImplementationDataTypeElement +subElement ImplementationDataTypeElement
ImplementationDataType
category = ARRAY category = TYPE_REFERENCE
category = ARRAY
arraySize = 15 arraySize = 10

+swDataDefProps
typedef uint8 ArrArrD[15][10];
uint8 :
:SwDataDefProps +implementationDataType ImplementationDataType

category = VALUE

Figure 5.5: Example of a two dimension array typed by an ImplementationDataType

ANSI C does not allow a type declaration to have zero elements and therefore we
require that the number of elements to be a positive integer.
[SWS_Rte_CONSTR_09042] Array Implementation Data Types needs at
least one element d The arraySize defining number of elements in one dimension of
an Array Implementation Data Type shall be an integer that is 1 for each dimension.
c()

5.3.4.5 Structure Implementation Data Type and Union Implementation Data

Type

[SWS_Rte_07114] d For each Structure Implementation Data Type, the RTE

Types Header File shall include the corresponding structure declaration as:
struct _<name>_ { <elements> };
where <elements> is the record element specification and <name> is the Implemen-
tation Data Type symbol of the Structure Implementation Data Type.
For each record element defined by one ImplementationDataTypeElement one
record element specification <elements> is defined. The record element specifica-
tions are ordered according the order of the related ImplementationDataType-

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Elements in the input configuration. Sequent record elements are separated with a
semicolon. c(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_06812] d For each Structure Implementation Data Type, the RTE
Types Header File shall include the corresponding type declaration as:
typedef struct _<name>_ <name>;
where <name> is the Implementation Data Type symbol of the Structure
Implementation Data Type. c(SRS_Rte_00055, SRS_Rte_00164)
An example is listed as ARXML and C-code in Appendix F.4.

5.3.4.6 Union Implementation Data Type

[SWS_Rte_07144] d For each Union Implementation Data Type, the RTE

Types Header File shall include the corresponding union declaration as:
union _<name>_ { <elements> };
where <elements> is the union element specification and <name> is the Implemen-
tation Data Type symbol of the Union Implementation Data Type. For
each union element defined by one ImplementationDataTypeElement one union
element specification <elements> is defined. The union element specifications are
ordered according the order of the related ImplementationDataTypeElements in
the input configuration. Sequent union elements are separated with a semicolon. c
(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_06813] d For each Union Implementation Data Type, the RTE
Types Header File shall include the corresponding type declaration as:
typedef union _<name>_ <name>;
where <name> is the Implementation Data Type symbol of the Union Im-
plementation Data Type. c(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_07115] d Record and Union element specifications <elements> shall be
generated as
<nativeDeclaration> <name>;
if the ImplementationDataTypeElement has the category attribute set to
VALUE and if it refers to an BaseType. The meaning of the fields is identical to
[SWS_Rte_07104] c(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_07116] d Record and Union element specifications <elements> shall be
generated as
<type> <name>;

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if the ImplementationDataTypeElement has the category attribute set to

TYPE_REFERENCE and if it refers to an ImplementationDataType. <type>
is the Implementation Data Type symbol of the referred Implementation-
DataType and <name> is the shortName of the ImplementationDataTypeEle-
ment. c(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_07117] d Record and Union element specifications <elements> shall be
generated as
<nativeDeclaration> <name>[<size 1>]{[<size 2>]...[<size n>]};
if the ImplementationDataTypeElement has the category attribute set to ARRAY
and which leaf ImplementationDataTypeElement has the category attribute set
to VALUE and is typed by an BaseType. The meaning and order of the fields is identical
to [SWS_Rte_07110] c(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_07118] d Record and Union element specifications <elements> shall be
generated as
<type> <name>[<size 1>]{[<size 2>]...[<size n>]};
if the ImplementationDataTypeElement has the category attribute set to ARRAY
and which leaf ImplementationDataTypeElement has the category attribute
set to TYPE_REFERENCE and is typed by an ImplementationDataType. The
meaning and order of the fields is identical to [SWS_Rte_07111] c(SRS_Rte_00055,
SRS_Rte_00164)
[SWS_Rte_07119] d Record and Union element specifications <elements> shall be
generated as
struct { <elements> } <name>;
if the ImplementationDataTypeElement has the category attribute set to
STRUCTURE. The meaning and order of the fields is identical to [SWS_Rte_07114] Se-
quent elements are separated with a semicolon. c(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_07145] d Record and Union element specifications <elements> shall be
generated as
union { <elements> } <name>;
if the ImplementationDataTypeElement has the category attribute set to
UNION. The meaning and order of the fields is identical to [SWS_Rte_07144]. Sequent
elements are separated with a semicolon. c(SRS_Rte_00055, SRS_Rte_00164)
[SWS_Rte_07146] d Pointer element specifications <elements> shall be generated
as
<tqlA> <addtqlA> <type> * <tqlB> <addtqlB> <name>;
if the ImplementationDataTypeElement has the category attribute set to
DATA_REFERENCE where <name> is the shortName of the Implementation-
DataTypeElement. c(SRS_Rte_00055, SRS_Rte_00164)

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For the definition of <tqlA> and <tqlB> see [SWS_Rte_07149] and

[SWS_Rte_07166].
For the definition of <addtqlA> and <addtqlB> see [SWS_Rte_07036] and
[SWS_Rte_07037].
For the definition of <type> see [SWS_Rte_07162], [SWS_Rte_07163].
RecA :ImplementationDataType +subElement M :ImplementationDataTypeElement

category = STRUCTURE category = TYPE_REFERENCE

+swDataDefProps
MyUint8 :
+implementationDataType
typedef struct ImplementationDataType
:SwDataDefProps
{
MyUint8 M; category = VALUE
unsigned short N;
uint8 O;
+subElement N :ImplementationDataTypeElement
} RecA;
category = VALUE

+swDataDefProps
+baseType MyUint16Base :SwBaseType
:SwDataDefProps
nativeDeclaration = unsigned short

+subElement O :ImplementationDataTypeElement

category = TYPE_REFERENCE

+swDataDefProps
uint8 :
+implementationDataType
:SwDataDefProps ImplementationDataType

category = VALUE

Figure 5.6: Example of a structure type

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RecA : +subElement M :ImplementationDataTypeElement

ImplementationDataType
category = TYPE_REFERENCE
category = STRUCTURE

+swDataDefProps
MyUint8 :
:SwDataDefProps +implementationDataType
ImplementationDataType

category = VALUE

+subElement N :ImplementationDataTypeElement

category = VALUE
typedef struct
{
MyUint8 M; +swDataDefProps
unsigned short N; +baseType MyUint16Base :SwBaseType
uint8 O; :SwDataDefProps
struct nativeDeclaration = unsigned short
{
uint8 PA; +baseType
unsigend short PB; O:
} P; +subElement ImplementationDataTypeElement
} RecA;
category = TYPE_REFERENCE

+swDataDefProps
uint8 :
+implementationDataType
ImplementationDataType
:SwDataDefProps

category = VALUE

+implementationDataType

P :ImplementationDataTypeElement PA :
+subElement ImplementationDataTypeElement
category = STRUCTURE
category = TYPE_REFERENCE
+swDataDefProps

:SwDataDefProps

+subElement

PB :
+subElement ImplementationDataTypeElement

category = VALUE

+swDataDefProps

:SwDataDefProps

Figure 5.7: Example of a nested structure type

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UnionFoo :ImplementationDataType TheWord :

+subElement
ImplementationDataTypeElement
category = UNION
category = VALUE
typedef union
{ +swDataDefProps
unsigned short TheWord; +baseType MyUint16Base :SwBaseType
atpVariation
struct :SwDataDefProps
{ nativeDeclaration = unsigned short
unsigned char FirstByte;
unsigned char SecondByte;
}TheBytes;
}UnionFoo; TheBytes : FirstByte :
+subElement
ImplementationDataTypeElement ImplementationDataTypeElement

category = STRUCTURE category = VALUE

+swDataDefProps

+subElement atpVariation
:SwDataDefProps

+subElement SecondByte :
ImplementationDataTypeElement

category = VALUE

+swDataDefProps

atpVariation
:SwDataDefProps

+baseType +baseType

MyUint8Base :SwBaseType

nativeDeclaration = unsigned char

Figure 5.8: Example of a union type

[SWS_Rte_07107] d If more than one Structure Implementation Data Type

or Union Implementation Data Type with equal shortName of the Implemen-
tationDataType are defined, the RTE Types Header File shall include only once the
corresponding type declaration according to [SWS_Rte_07114] or [SWS_Rte_07144].
c(SRS_Rte_00165)
Note: This avoids the redeclaration of C types due to the multiple descriptions of equiv-
alent Structure Implementation Data Types and Union Implementation
Data Types in the ECU extract.
ANSI C does not allow a struct to have zero elements and therefore we require that
a record include at least one element.
[SWS_Rte_CONSTR_09043] Structure Implementation Data Types needs
at least one element d A structure shall include at least one element defined by a
ImplementationDataTypeElement. c()
A union data type describes a kind of structural overlay. Defining only one sub element
of a union ist therefore not reasonable and indicates an error.

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5.3.4.7 Implementation Data Type redefinition

[SWS_Rte_07109] d For each Redefinition Implementation Data Type

which is typed by an ImplementationDataType, the RTE Types Header File shall
include the corresponding type declaration as:
typedef <type> <name>;
where <type> is the Implementation Data Type symbol of the referred
ImplementationDataType and <name> is the Implementation Data Type
symbol of the Primitive Implementation Data Type. c(SRS_Rte_00055,
SRS_Rte_00166)

EngSpd :ImplementationDataType +swDataDefProps :SwDataDefProps +implementationDataType uint16 :

ImplementationDataType
category = TYPE_REFERENCE

typedef uint16 EngSpd;

Figure 5.9: Example of an Implementation Data Type redefinition

[SWS_Rte_07167] d If more than one Redefinition Implementation Data

Types with equal shortNames which are referring to compatible Implementation-
DataTypes with identical shortNames are defined, the RTE Types Header File shall
include only once the corresponding type declaration according to [SWS_Rte_07109].
c(SRS_Rte_00165)
Note: This avoids the redeclaration of C types due to the multiple descriptions of equiv-
alent Redefinition Implementation Data Type in the ECU extract.

5.3.4.8 Pointer Implementation Data Type

[SWS_Rte_07148] d For each Pointer Implementation Data Type, the RTE

Types Header File shall include the corresponding type declaration as:
typedef <tqlA> <addtqlA> <type> * <tqlB> <addtqlB> <name>;
where <name> is the Implementation Data Type symbol of the Pointer Im-
plementation Data Type. c(SRS_Rte_00055, SRS_Rte_00166)
[SWS_Rte_07149] d <tqlA> (type qualifier A) of a Pointer Implemen-
tation Data Type ([SWS_Rte_07148]) or Pointer element specifications
([SWS_Rte_07146]) shall be set to const if the swImplPolicy of the sw-
PointerTargetProps is set to const and shall be omitted for all other values of
swImplPolicy. c(SRS_Rte_00055, SRS_Rte_00166)
[SWS_Rte_07166] d <tqlB> (type qualifier B) of a Pointer Implemen-
tation Data Type ([SWS_Rte_07148]) or Pointer element specifications
([SWS_Rte_07146]) shall be set to const if the swImplPolicy of the Sw-

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DataDefProps of the ImplementationDataType respectively Implementa-

tionDataTypeElement is set to const and shall be omitted for all other values of
swImplPolicy. c(SRS_Rte_00055, SRS_Rte_00166)
[SWS_Rte_07036] d <addtqlA> (additional type qualifier A) of a Pointer Im-
plementation Data Type ([SWS_Rte_07148]) or Pointer element specifications
([SWS_Rte_07146]) shall be set to the content of the additionalNativeType-
Qualifier attribute of the swPointerTargetProps if the attribute exists and shall
be omitted if such additionalNativeTypeQualifier attribute dose not exist. c
(SRS_Rte_00055, SRS_Rte_00166)
[SWS_Rte_07037] d <addtqlB> (additional type qualifier B) of a Pointer Im-
plementation Data Type ([SWS_Rte_07148]) or Pointer element specifications
([SWS_Rte_07146]) shall be set to the content of the additionalNativeType-
Qualifier attribute of the SwDataDefProps of the ImplementationDataType
respectively ImplementationDataTypeElement and shall be omitted if such ad-
ditionalNativeTypeQualifier attribute dose not exist. c(SRS_Rte_00055,
SRS_Rte_00166)
[SWS_Rte_07162] d <type> shall be set to the nativeDeclaration attribute of the
referred BaseType if the targetCategory of a Pointer Implementation Data
Type ([SWS_Rte_07148]) or Pointer element specifications ([SWS_Rte_07146]) is set
to VALUE c(SRS_Rte_00055, SRS_Rte_00166)
[SWS_Rte_07163] d <type> shall be the Implementation Data Type sym-
bol of the referred ImplementationDataType if the targetCategory of a
Pointer Implementation Data Type ([SWS_Rte_07148]) or Pointer element
specifications ([SWS_Rte_07146]) is set to TYPE_REFERENCE c(SRS_Rte_00055,
SRS_Rte_00166)
[SWS_Rte_07169] d If more than one Pointer Implementation Data Types
with equal shortNames which are resulting in the same C pointer type declaration
are defined, the RTE Types Header File shall include only once the corresponding type
declaration according to [SWS_Rte_07148]. c(SRS_Rte_00165)
Note: This avoids the redeclaration of C types due to the multiple descriptions of equiv-
alent Pointer Implementation Data Type in the ECU extract.
TheRecAPointer :
+swDataDefProps :SwDataDefProps RecA :ImplementationDataType
ImplementationDataType

category = STRUCTURE
category = DATA_REFERENCE
+implementationDataType

typedef const RecA * TheRecAPointer;

+swPointerTargetProps

:SwPointerTargetProps +swDataDefProps :SwDataDefProps

targetCategory = TYPE_REFERENCE swImplPolicy = const

Figure 5.10: Example of a Pointer Implementation Data Type

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5.3.4.9 ImplementationDataTypes with VariationPoints

[SWS_Rte_06539] d
The RTE Generator shall wrap each code related to ImplementationDataType-
Elements which are subject to variability in Structure Implementation Data
Type and Union Implementation Data Type (see 4.24 if the variability shall be
implemented.
1 #if (<condition>)
2

3 <elements>
4
5 #endif

where <condition> are the condition value macro(s) of the VariationPoints ac-
cording table 4.24 and
<elements> is the code according invariant ImplementationDataType-
Elements (see also [SWS_Rte_07115], [SWS_Rte_07116], [SWS_Rte_07117],
[SWS_Rte_07118], [SWS_Rte_07119], [SWS_Rte_07145], [SWS_Rte_07146])
c(SRS_Rte_00201)
[SWS_Rte_06540] d The RTE Generator shall implement the <size x> of an Array
Implementation Data Type for each arraySize which is subject to variability
with the corresponding attribute value macro according table 4.24 if the variability shall
be implemented. c(SRS_Rte_00201)

5.3.4.10 Naming of data types

The Implementation Data Type symbol is defined as follows:

[SWS_Rte_06716] d The Implementation Data Type symbol shall be the
shortName of the ImplementationDataType if no symbol attribute for this Im-
plementationDataTypeis defined. c(SRS_Rte_00167)

Example 5.19

The Primitive Implementation Data Type in example 5.2 results in the type
definition:
1 /* RTE Types Header File */
2 typedef unsigned char MyUint8;

[SWS_Rte_06717] d The Implementation Data Type symbol shall be the value

of the SymbolProps.symbol attribute of the ImplementationDataType if the sym-
bol attribute is defined. c(SRS_Rte_00167)

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[SWS_Rte_06718] d If the RTE Types Header File contains a generated C data type
whose Implementation Data Type symbol differs from the Implementation-
DataType shortName, the Application Type Header Files of each software com-
ponent using the type shall contain a definition which redefines the Implementa-
tion Data Type symbol to the shortName of the ImplementationDataType.
c(SRS_Rte_00167)

MyUint8 : +swDataDefProps :SwDataDefProps +baseType MyUint8Base :SwBaseType

ImplementationDataType
nativeDeclaration = unsigned char
category = VALUE

+symbolProps :SymbolProps

symbol = MyUint8OfVendorNil

typedef unsigned char MyUint8OfVendorNil;

Figure 5.11: Primitive Implementation Data Type with SymbolProps

Example 5.20

If the input configuration contains a two ImplementationDataTypes with same

name but different definition the SymbolProps can be used to avoid the name clash.
The Primitive Implementation Data Type in example 5.11 results in following
definition:
1 /* RTE Types Header File */
2 typedef unsigned char MyUint8OfVendorNil;

The Application Types Header File an using component contain the remapping to the
original name:
1 /* Application Types Header File */
2 define MyUint8 MyUint8OfVendorNil;

[SWS_Rte_06719] d The RTE generator shall reject configurations where Implemen-

tationDataTypes result in the same Implementation Data Type symbol but
whose definition would not resulting in the same type declaration. c(SRS_Rte_00018)
Note: This would result in compiler errors due to incompatible redefinition of C types.
[SWS_Rte_06724] d The RTE generator shall reject configurations where the same
software component uses ImplementationDataTypes with equal shortNames
which would result in the mapping to different Implementation Data Type sym-
bols. c(SRS_Rte_00018)
Note: This would result in compiler errors due to incompatible redefinition of the
mapping from ImplementationDataType.shortName to Implementation Data
Type symbol

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5.3.4.11 C/C++

The following requirements apply to RTEs generated for C and C++ .

[SWS_Rte_01161] d The name of the RTE Types Header File shall be Rte_Type.h.
c(SRS_BSW_00300)
[SWS_Rte_01162] d Within the RTE Types Header File, each data type shall be de-
clared using typedef. c(SRS_Rte_00126)
A typedef is used when declaring a new data type instead of a #define even though
C only provides weak type checking since other static analysis tools can then be used
to overlay strong type checking onto the C before it is compiled and thus detect type
errors before the module is even compiled.

5.3.5 RTE Data Handle Types Header File

The RTE Data Handle Types Header File contains the Data Handle type declarations
necessary for the component data structures (see Section 5.4.2). The RTE Data
Handle Types Header File code is not allowed to create objects in memory.
[SWS_Rte_07920] d The RTE generator shall create the RTE Data Handle Types
Header File including the type declarations of
data element without status ([SWS_Rte_01363], [SWS_Rte_01364],
[SWS_Rte_02607]),
data element with status ([SWS_Rte_01365], [SWS_Rte_01366],
[SWS_Rte_03734], [SWS_Rte_02666], [SWS_Rte_02589], [SWS_Rte_02590]),
and data element with extended status ([SWS_Rte_06817],
[SWS_Rte_06818], [SWS_Rte_06819], [SWS_Rte_06820], [SWS_Rte_06821],
[SWS_Rte_06822], [SWS_Rte_06823], [SWS_Rte_06824], [SWS_Rte_06825],
[SWS_Rte_06826]). c()
[SWS_Rte_07921] d The RTE Data Handle Types Header File shall not contain code
that creates object in memory. c(SRS_BSW_00308)
The RTE Data Handle Types Header File should be an output of the RTE Contract
and RTE Generation phases.

5.3.5.1 File Name

[SWS_Rte_07922] d The name of the RTE Data Handle Types Header File shall be
Rte_DataHandleType.h. c(SRS_BSW_00300)

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5.3.5.2 File Contents

The RTE Data Handle Types Header File contains the type declarations of data el-
ement without status and data element with status (see Section 5.4.2).
[SWS_Rte_07923] d The RTE Data Handle Types Header File shall include the follow-
ing mechanism to prevent multiple inclusions.
1 #ifndef RTE_DATA_HANDLE_TYPE_H
2 #define RTE_DATA_HANDLE_TYPE_H
3
4 /* File contents */
5

6 #endif /* RTE_DATA_HANDLE_TYPE_H */

c(SRS_Rte_00126)

5.3.6 Application Types Header File

The Application Types Header File provides a component local name space for enu-
meration literals and range values. The Application Types Header File is not allowed to
create objects in memory.
The Application Types Header File file should be identical output for RTE Contract
and RTE Generation phases.
[SWS_Rte_07120] d The RTE generator shall create an Application Types Header
File for each software-component type (excluding ParameterSwComponentTypes
and NvBlockSwComponentTypes) defined in the input. c(SRS_Rte_00024,
SRS_Rte_00140, SRS_BSW_00447)
[SWS_Rte_07121] d The Application Types Header File shall not contain code that
creates objects in memory. c(SRS_BSW_00308)

5.3.6.1 File Name

[SWS_Rte_07122] d The name of the Application Types Header File shall be formed
by prefixing the AUTOSAR software-component type name with Rte_[Byps_] and
appending the result with _Type.h. [Byps_] is an optionnal infix used when compo-
nent wrapper method for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00300, SRS_Rte_00167)

Example 5.21

The following declaration in the input XML:

1 <APPLICATION-SW-COMPONENT-TYPE>
2 <SHORT-NAME>Source</SHORT-NAME>
3 </APPLICATION-SW-COMPONENT-TYPE>

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should result in the Application Types Header File Rte_Source_Type.h being gen-
erated when the component wrapper method for bypass support is disabled.

5.3.6.2 Scope

[SWS_Rte_07123] d The Application Types Header File for a component shall contain
only information relevant for that component. c(SRS_Rte_00167, SRS_Rte_00017)
[SWS_Rte_07124] d The Application Types Header File shall be valid for both C and
C++ source. c(SRS_Rte_00126, SRS_Rte_00138)
Requirement [SWS_Rte_07124] is met by ensuring that all definitions within the Appli-
cation Types Header File are defined using C linkage if a C++ compiler is used.
[SWS_Rte_07125] d All definitions within in the Application Types Header File shall be
preceded by the following fragment;
1 #ifdef __cplusplus
2 extern "C" {
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)
[SWS_Rte_07126] d All definitions within the application types header file shall be
suffixed by the following fragment;
1 #ifdef __cplusplus
2 } /* extern "C" */
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)
[SWS_Rte_07678] d The Application Types Header File shall be protected against
multiple inclusions:
1 #ifndef RTE_<SWC>_TYPE_H
2 #define RTE_<SWC>_TYPE_H
3 ...
4 /*
5 * Contents of file
6 */
7 ...
8 #endif /* !RTE_<SWC>_TYPE_H */

Where <SWC> is the AUTOSAR software-component type name.3 c(SRS_Rte_00126)

3
No additional capitalization is applied to the names.

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5.3.6.3 File Contents

In contrast to the Application Header File the Application Types Header File supports
that multiple Application Types Header Files are included in the same module. This is
necessary if for instance a BSW module uses several AUTOSAR Services.
[SWS_Rte_07127] d The Application Types Header File shall include the RTE Types
Header File. c(SRS_Rte_00087)
The name of the RTE Types Header File is defined in Section 5.3.4.

5.3.6.4 RTE Modes

The Application Types Header File shall contain identifiers for the ModeDeclarations
and type definitions for ModeDeclarationGroups as defined in Chapter 5.5.4

5.3.6.5 Enumeration Data Types

The Application Types Header File shall contain the enumeration constants as defined
in Chapter 5.5.5

5.3.6.6 Range Data Types

The Application Types Header File shall contain definitions of Range constants as
defined in Chapter 5.5.6

5.3.6.7 Implementation Data Type symbols

The Application Type Header File may contain definitions to redefine the Imple-
mentation Data Type symbol to the shortName of the Implementation-
DataType in order to provide the expected type name to the software component
implementation. See section 5.3.4.10.

5.3.7 VFB Tracing Header File

The VFB Tracing Header File defines the configured VFB Trace events.
[SWS_Rte_01319] d The VFB Tracing Header File shall be created by the RTE Gen-
erator during RTE Generation Phase or Basic Software Scheduler Generation Phase
only. c(SRS_Rte_00045)

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The VFB Tracing Header file is included by the generated RTE and by the user in the
module(s) that define the configured hook functions. The header file includes proto-
types for the configured functions to ensure consistency between the invocation by the
RTE and the definition by the user.

5.3.7.1 C/C++

The following requirements apply to RTEs generated for C and C++ .

[SWS_Rte_01250] d The name of the VFB Tracing Header File shall be Rte_Hook.h.
c(SRS_Rte_00045)

5.3.7.2 File Contents

[SWS_Rte_01251] d The VFB Tracing header file shall include the RTE Configuration
Header File (Section 5.3.8). c(SRS_Rte_00045)
[SWS_Rte_01357] d The VFB Tracing header file shall include the RTE Types Header
file (Section 5.3.4). c(SRS_Rte_00003, SRS_Rte_00004)
[SWS_Rte_03607] d The VFB Tracing header file shall include Os.h. c
(SRS_Rte_00005, SRS_Rte_00008)
[SWS_Rte_01320] d The VFB Tracing header file shall contain the following code im-
mediately after the include of the RTE Configuration Header File.
1 #ifndef RTE_VFB_TRACE
2 #define RTE_VFB_TRACE (FALSE)
3 #endif /* RTE_VFB_TRACE */

c(SRS_Rte_00008, SRS_Rte_00005)
Requirement [SWS_Rte_01320] enables VFB tracing to be globally enabled/disabled
within the RTE Configuration Header File and ensures that it defaults to disabled.
[SWS_Rte_01236] d For each trace event hook function defined in Section 5.11.5, the
RTE generator shall define the following code sequence in the VFB Tracing header file:
1 #if defined(<trace event>) && (RTE_VFB_TRACE == FALSE)
2 #undef <trace event>
3 #endif
4 #if defined(<trace event>)
5 #undef <trace event>
6 extern void <trace event>(<params>);
7 #else
8 #define <trace event>(<params>) ((void)(0))
9 #endif /* <trace event> */

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where <trace event> is the name of trace event hook function and <params> is
the list of parameter names of the trace event hook function prototype as defined in
Section 5.11.5. c(SRS_Rte_00008)
The code fragment within [SWS_Rte_01236] benefits from a brief analysis of its struc-
ture. The first #if block ensures that an individually configured trace event in the RTE
Configuration Header File [SWS_Rte_01324] is disabled if tracing is globally disabled
[SWS_Rte_01323]. The second #if block emits the prototype for the hook function
only if enabled in the RTE Configuration file and thus ensures that only configured trace
events are prototyped. The #undef is required to ensure that the trace event function
is invoked as a function by the generated RTE. The #else block comes into effect if the
trace event is disabled, either individually [SWS_Rte_01325] or globally, and ensures
that it has no run-time effect. Within the #else block the definition to ((void)(0))
enables the hook function to be used within the API Mapping in a comma-expression.
An individual trace event defined in Section 5.11.5 actually defines a class of hook
functions. A member of the class is created for each RTE object created (e.g. for each
API function, for each task) and therefore an individual trace event may give rise to
many hook function definitions in the VFB Tracing header file.

Example 5.22

Consider an API call Rte_Write_p1_a for an instance of SW-C c. This will result in
two trace event hook functions being created by the RTE generator:
1 Rte_WriteHook_c_p1_a_Start

and
1 Rte_WriteHook_c_p1_a_Return

5.3.8 RTE Configuration Header File

The RTE Configuration Header File contains user definitions that affect the behavior of
the generated RTE.
The directory containing the required RTE Configuration Header File should be in-
cluded in the compilers include path when using the VFB tracing header file. The RTE
Configuration Header File is generated by the RTE generator.

5.3.8.1 C/C++

The following requirements apply to RTEs generated for C and C++ .

[SWS_Rte_01321] d The name of the RTE Configuration Header File shall be
Rte_Cfg.h. c(SRS_Rte_00008, SRS_Rte_00045)

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5.3.8.2 File Contents

[SWS_Rte_07641] d The RTE Configuration Header File shall include the file
Std_Types.h. c(SRS_Rte_00149, SRS_Rte_00150, SRS_BSW_00353)

5.3.8.2.1 VFB tracing configuration

[SWS_Rte_01322] d The RTE generator shall globally enable VFB tracing when
RTE_VFB_TRACE is defined in the RTE Configuration Header File as a vale which
does not evaluate as FALSE. c(SRS_Rte_00008, SRS_Rte_00005)
Note that, as observed in Section 5.11, VFB tracing enables debugging of software
components, not the RTE itself.
[SWS_Rte_01323] d The RTE generator shall globally disable VFB tracing when
RTE_VFB_TRACE is defined in the RTE configuration header file as FALSE. c
(SRS_Rte_00008, SRS_Rte_00005)
As well as globally enabling or disabling VFB tracing, the RTE Configuration header
file also configures those individual VFB tracing events that are enabled.
[SWS_Rte_01324] d The RTE generator shall enable VFB tracing for a given hook
function when there is a #define in the RTE Configuration Header File for the hook
function name and tracing is globally enabled. c(SRS_Rte_00008)
Note that the particular value assigned by the #define, if any, is not significant.
[SWS_Rte_01325] d The RTE generator shall disable VFB tracing for a given hook
function when there is no #define in the RTE Configuration Header File for the hook
function name even if tracing is globally enabled. c(SRS_Rte_00008)

Example 5.23

Consider the trace events from Example 5.22. The trace event for API start is enabled
by the following definition;
1 #define Rte_WriteHook_i1_p1_a_Start

And the trace event for API termination is enabled by the following definition;
1 #define Rte_WriteHook_i1_p1_a_Return

5.3.8.2.2 Condition Value Macros

The Condition Value Macros are generated in the PreBuild Data Set Contract Phase
and PreBuild Data Set Generation Phase. To do this a particular variant out of the
pre-build variability of the input configuration has to be chosen by the means
described in by [SWS_Rte_06500].

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[SWS_Rte_06514] d If evaluated BooleanValueVariationPoints or Condi-

tionByFormulas are resulting to true the <value> for Condition Value Macros shall
be coded as TRUE and if these are resulting to false the value shall be coded as FALSE.
c(SRS_Rte_00201, SRS_Rte_00203)
[SWS_Rte_06513] d For each VariationPointProxy which bindingTime = Pre-
CompileTime the RTE Configuration Header File shall contain a definition of a Con-
dition Value Macro in the RTE PreBuild Data Set Contract Phase and RTE PreBuild
Data Set Generation Phase
#define Rte_SysCon_<cts>_<name> <value>

Where <cts> is the component type symbol of the AtomicSwComponentType,

<name> is the shortName of the VariationPointProxy and
<value> is the evaluated value of the AttributeValueVariationPoint or Con-
ditionByFormula. c(SRS_Rte_00203, SRS_Rte_00167)
This requirements makes the SwSystemconst values available to resolve the pre-
build variability in the software components via the Preprocessor. This might
be used to
read the actual value of the value assigned to a SwSystemconst
read the setting of an attribute (e.g. array size) dependent from a SwSystem-
const
check the existence of a conditional existent object, e.g. an code fragment imple-
menting a particular functionality
[SWS_Rte_03854] d For each VariationPointProxy which bindingTime = Pre-
CompileTime the RTE Application Header File shall contain a definition
#define Rte_SysCon_<name> Rte_SysCon_<cts>_<name>

where <cts> is the component type symbol of the AtomicSwComponentType

and
<name> is the shortName of the VariationPointProxy. c(SRS_Rte_00203,
SRS_Rte_00167)
[SWS_Rte_06515] d For each RTE API which is subject to variability and following the
form component port or entity port in table 4.17 the RTE Configuration Header File
shall contain one definition of a Condition Value
#define Rte_VPCon_<cts>_<re>[_<resl>]_<p>_<o>[_<psl>] <value>

where <cts> is the component type symbol of the AtomicSwComponentType,

<re> is the short name of the RunnableEntity,
<resl> is the shortLabel of the RunnableEntitys VariationPoint containing
the reference element (e.g. a VariableAccess) to the PortInterface element,

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<p> is the name of the PortPrototype,

<o> is the short name of the PortInterface element and
<psl> is the shortLabel of the PortPrototypes VariationPoint which is re-
ferred by the VariableAccess
If there is no VariationPoint at the RunnableEntity owning the VariableAc-
cess the <resl> with leading underscore is omitted ([_<resl>]).
If there is no VariationPoint at the PortPrototype referred by the Vari-
ableAccess the <psl> with leading underscore is omitted ([_<psl>]).
<value> is the evaluated value of the ConditionByFormula of the Varia-
tionPoint vary the existence of the RTE API in table 4.17. c(SRS_Rte_00201,
SRS_Rte_00167)
[SWS_Rte_08789] d For each VariationPointProxy which bindingTime = Pre-
CompileTime the RTE Configuration Header File shall contain a definition of a Con-
dition Value Macro in the RTE PreBuild Data Set Contract Phase and RTE PreBuild
Data Set Generation Phase
#define SchM_SysCon_<bsnp>[_<vi>_<ai>]_<ki>_<name> <value>

Where
<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module,
<ki> is the kind infix according table 4.28,
<name> is the short name of the element which is subject to variability in table 4.28
defining the Basic Software Scheduler API name infix and
<value> is the evaluated value of the AttributeValueVariationPoint or Con-
ditionByFormula.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. See [SWS_Rte_07528]. c(SRS_Rte_00229,
SRS_BSW_00347)
This requirement makes the SwSystemconst value available to resolve the pre-
build variability in the BSW module via the Preprocessor. This might be used
to
read the actual value of the value assigned to a SwSystemconst
read the setting of an attribute (e.g. array size) dependent from a SwSystem-
const

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check the existence of a conditional existent object, e.g. a code fragment imple-
menting a particular functionality
[SWS_Rte_06518] d For each RTE API which is subject to variability and following the
form component internal in table 4.17 the RTE Configuration Header File shall contain
one definition of a Condition Value
#define Rte_VPCon_<cts>_<ki>_<name>_<sl> <value>

where <cts> is the component type symbol of the AtomicSwComponentType,

<ki> is the kind infix according table 4.17,
<name> is the short name of the element which is subject to variability in table 4.17
and is defining the API name infix,
<sl> is the shortLabel of the elements VariationPoint defining the API name
infix.
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the variant existence of the RTE API in table 4.17. c(SRS_Rte_00201,
SRS_Rte_00167)
[SWS_Rte_06519] d For each RTE API which is subject to variability and which vari-
ability shall be implemented and which is following the form entity internal in table 4.17
the RTE Configuration Header File shall contain one definition of a Condition Value
#define Rte_VPCon_<cts>_<re>[_<resl>]_<ki>_<name>_<sl> <value>

where <cts> is the component type symbol of the AtomicSwComponentType,

<re> is the short name of the RunnableEntity,
<resl> is the shortLabel of the RunnableEntitys VariationPoint containing
the reference element (e.g. a VariableAccess) to the PortInterface element,
<ki> is the kind infix according table 4.17 and
<name> is the short name of the element which is subject to variability in table 4.17
and is defining the API name infix.
<sl> is the shortLabel of the elements VariationPoint defining the API name
infix.
If there is no VariationPoint at the RunnableEntity owning the reference ele-
ment (e.g. a VariableAccess) to the PortInterface element the <resl> with
leading underscore is omitted ([_<resl>]).
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the variant existence of the RTE API in table 4.17. c(SRS_Rte_00201,
SRS_Rte_00167)

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[SWS_Rte_06520] d For each PortPrototype which is subject to variability and

which variability shall be implemented the RTE Configuration Header File shall con-
tain one definition of a Condition Value
#define Rte_VPCon_<cts>_<p>_<psl> <value>

where <cts> is the component type symbol of the AtomicSwComponentType,

<p> is the short name of the PortPrototype and
<psl> is the shortLabel of the PortPrototypes VariationPoint and
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the variant existence of the PortPrototype in table 4.17. c
(SRS_Rte_00201, SRS_Rte_00167)
[SWS_Rte_06530] d For each RunnableEntity which is subject to variability and
which variability shall be implemented the RTE Configuration Header File shall contain
one definition of a Condition Value
#define Rte_VPCon_<cts>_<re>_<resl> <value>

where <cts> is the component type symbol of the AtomicSwComponentType,

<re> is the short name of the RunnableEntity
<resl> is the shortLabel of the RunnableEntitys VariationPoint containing
the reference element (e.g. a VariableAccess) to the PortInterface element,
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the variant existence of the RunnableEntity in table 4.20. c
(SRS_Rte_00201, SRS_Rte_00167)
[SWS_Rte_06541] d For each arraySize which subject to variability the RTE Con-
figuration Header File shall contain one definition of a Attribute Value
#define Rte_VPVal_<t>_<e 1>[_<e 2> ... _<e n>] <value>

where <t> is the shortName of the ImplementationDataType,

[<e x>] are the shortNames of the Arrays ImplementationDataTypeElements
with a leading underscore ordered from the root to the Arrays Implementation-
DataTypeElement with the arraySize being subject to variability and
<value> is the evaluated value of the AttributeValueVariationPoint of the
arraySize c(SRS_Rte_00201, SRS_Rte_00167)
[SWS_Rte_06542] d For each Arrays ImplementationDataTypeElement which
subject to variability the RTE Configuration Header File shall contain one definition of
a Condition Value
#define Rte_VPCon_<t>_<e 1>[_<e 2> ... _<e n>] <value>

where <t> is the shortName of the ImplementationDataType,

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[<e x>] are the shortNames of the Arrays ImplementationDataTypeElements

with a leading underscore ordered from the root to the Arrays Implementation-
DataTypeElement being subject to variability and
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the conditional existence of the Arrays ImplementationDataType-
Element c(SRS_Rte_00201, SRS_Rte_00167)
[SWS_Rte_06551] d For each DataConstr referenced by a ApplicationPrimi-
tiveDataType where the upperLimit is subject to PreCompileTime variabil-
ity the RTE Configuration Header File shall contain one definition of a Attribute Value
Macro
#define Rte_VPVal_<cts>_<prefix><t>_UpperLimit <upperValue><suffix>

where <cts> is the component type symbol of the AtomicSwComponentType,

<t> is the shortName of the ApplicationPrimitiveDataType,
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType to which the DataConstr belongs,
<upperValue> are the upperLimit value of the dataConstr referenced by the
ApplicationPrimitiveDataType onto which the corresponding CompuMethod
has been applied (see [SWS_Rte_07038]). The value in the macro definitions shall
always reflect the closed interval, regardless of the interval type specified by the Dat-
aConstr.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00201, SRS_Rte_00167)
[SWS_Rte_06552] d For each DataConstr referenced by a ApplicationPrimi-
tiveDataType where the lowerLimit is subject to PreCompileTime variabil-
ity the RTE Configuration Header File shall contain one definition of a Attribute Value
Macro
#define Rte_VPVal_<cts>_<prefix><t>_LowerLimit <lowerValue><suffix>

where <cts> is the component type symbol of the AtomicSwComponentType,

<t> is the shortName of the ApplicationPrimitiveDataType,
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType to which the DataConstr belongs,
<lowerValue> are the lowerLimit value of the dataConstr referenced by the
ApplicationPrimitiveDataType onto which the corresponding CompuMethod
has been applied (see [SWS_Rte_07038]). The value in the macro definitions shall
always reflect the closed interval, regardless of the interval type specified by the Dat-
aConstr.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00201, SRS_Rte_00167)

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[SWS_Rte_06535] d For each Basic Software Scheduler API which is subject to vari-
ability and following the form module internal in table 4.28 the RTE Configuration
Header File shall contain one definition of a Condition Value
#define SchM_VPCon_<bsnp>[_<vi>_<ai>]_<ki>_<name>_<sl> <value>

where here
<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module,
<ki> is the kind infix according table 4.28,
<name> is the short name of the element which is subject to variability in table 4.28
defining the Basic Software Scheduler API name infix and
<sl> is the shortLabel of the elements VariationPoint defining the API name
infix.
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the variant existence of the Basic Software Scheduler API in table
4.28.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. See [SWS_Rte_07528]. c(SRS_Rte_00229,
SRS_BSW_00347)
[SWS_Rte_06536] d For each Basic Software Scheduler API which is subject to vari-
ability and which variability shall be implemented and which is following the form mod-
ule external and entity internal in table 4.28 the RTE Configuration Header File shall
contain one definition of a Condition Value
#define SchM_VPCon_<bsnp>[_<vi>_<ai>]_<ki>_
<entity>[_<esl>]_<name>[_<sl>] <value>

where here
<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module,
<ki> is the kind infix according table 4.28,
entity is the shortName of the BswModuleEntity
<esl> is the shortLabel of the BswModuleEntitys VariationPoint containing
the subject to variability,

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<name> is the shortName of the element/referenced element which is subject to vari-

ability in table 4.28 defining the Basic Software Scheduler API name infix and
<sl> is the shortLabel of the elementss VariationPoint defining the API name
infix.
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the variant existence of the Basic Software Scheduler API in table
4.28.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. See [SWS_Rte_07528].
If there is no VariationPoint at the BswModuleEntity referring to the subject to
variability in table 4.28 the <esl> with leading underscore is omitted ([_<esl>]).
If there is no VariationPoint at the elements defining the Basic Software Sched-
uler API name infix 4.28 the <sl> with leading underscore is omitted ([_<sl>]). c
(SRS_Rte_00229, SRS_BSW_00347)
[SWS_Rte_06532] d For each BswSchedulableEntity which is subject to variability
and which variability shall be implemented the RTE Configuration Header File shall
contain one definition of a Condition Value
#define SchM_VPCon_<bsnp>[_<vi>_<ai>]_<entry>_<esl> <value>

where here
<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module,
<entry> is the shortName of the implemented (implementedEntry) entry point
and
<esl> is the shortLabel of the BswModuleEntitys VariationPoint
<value> is the evaluated value of the ConditionByFormula of the Variation-
Point defining the variant existence of the BswSchedulableEntity in table 4.30.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. See [SWS_Rte_07528]. c(SRS_Rte_00229,
SRS_BSW_00347)
An example about the usage of condition value macros is shown in 5.6.

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5.3.9 Generated RTE

Figure 5.1 defines the relationship between generated and standardized header files.
It is not necessary to standardize the relationship between the C module, Rte.c,
and the header files since when the RTE is generated the application header files are
created anew along with the RTE. This means that details of which header files are
included by Rte.c can be left as an implementation detail.

5.3.9.1 Header File Usage

[SWS_Rte_01257] d In compatibility mode, the Generated RTE module shall include

Os.h. c(SRS_Rte_00145)
[SWS_Rte_03794] d In compatibility mode, the generated RTE module shall include
Com.h. c(SRS_Rte_00145)
[SWS_Rte_01279] d In compatibility mode, the Generated RTE module shall include
Rte.h. c(SRS_Rte_00145)
[SWS_Rte_01326] d In compatibility mode, the Generated RTE module shall include
the VFB Tracing header file. c(SRS_Rte_00045, SRS_Rte_00145)
[SWS_Rte_03788] d Except for the declaration of entry points for components
(see [SWS_Rte_07194]), the RTE shall map its memory objects with the file
Rte_MemMap.h, using the AUTOSAR memory mapping mechanism (see [28]). c
(SRS_Rte_00148)
[SWS_Rte_07692] d The Generated RTE module shall perform Inter Module Checks
to avoid integration of incompatible files. The imported included files shall be checked
by preprocessing directives.
The following version numbers shall be verified:
<MODULENAME>_AR_RELEASE_MAJOR_VERSION
<MODULENAME>_AR_RELEASE_MINOR_VERSION
Where <MODULENAME> is the module short name of the other (external) modules which
provide header files included by the Generated RTE module.
If the values are not identical to the expected values, an error shall be reported. c
(SRS_BSW_00004)
Figure 5.12 provides an example of how the RTE header and generated header files
could be used by a generated RTE.

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Figure 5.12: Example of header file use by the generated RTE.

In the example in Figure 5.12, the generated RTE C module requires access to the data
structures created for each AUTOSAR software-component and therefore includes
each application header file4 . In the example, the generated RTE also includes the
RTE header file and the lifecycle header file in order to obtain access to RTE and
lifecycle related definitions.
Note: Inclusion of Application Header Files of different software components into the
RTE C module needs support in the Application Header Files in order to avoid that
some local definitions of software components are producing name clashes. If the
RTE C module does not include any Application Header File, some type definitions
(e.g. component data structure) might have to be generated twice.

5.3.9.2 C/C++

The following requirements apply to RTEs generated for C and C++ .

Note: The <PartitionName>s referred to in requirements [SWS_Rte_02712],
[SWS_Rte_02713] and [SWS_Rte_02740] are implementation-specific identifiers for
the modules. They need not be the same as the CoreId identifiers configured for the
multi core OS. Refer to section 4.3.4 for a discussion of the allocation of ECU execution
logic to partitions and the allocation of partitions to cores.
[SWS_Rte_01169] d The name of the C module containing the generated RTE
code that is shared by all cores of an ECU shall be Rte.c. c(SRS_BSW_00300,
SRS_Rte_00126)
4
The requirement that a software module include at most one application header file applies only to
modules that actually implement a software-component and therefore does not apply to the generated
RTE.

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[SWS_Rte_02711] d On a multi core ECU, RTE shall only use global and static vari-
ables in the Rte.c module, if it is used in a single image system that supports shared
memory. In this case, RTE shall guarantee consistency of this memory, e.g. by using
OS mechanisms. c()
[SWS_Rte_02712] d On a multi partition ECU, there shall be additional code and
header files named Rte_Partition_<PartitionName> for the core specific code
parts of RTE where <PartitionName> is the shortName of the container Ecuc-
Partition. c()
[SWS_Rte_02713] d There shall not be symbol redefinitions between different
Rte_Partition_<PartitionName> files. c()
These requirements makes sure, that all Rte modules can be linked in one image. On
a multi core ECU, the RTE may be linked in one image or distributed over separate
images, one per core.
An RTE that includes configured code from an object-code or source-code library may
use additional modules. Further on due to the encapsulation of a component local
name space [SRS_Rte_00167], it might be required to encapsulate part of the gener-
ated RTE code in component specific files as well to avoid name clashes in the RTEs
implementation.
[SWS_Rte_07140] d The RTE generator is allowed to partition the
generated RTE module in several files additionally to Rte.c and
Rte_Partition_<PartitionName>. c(SRS_Rte_00167)

5.3.9.3 File Contents

By its very nature the contents of the generated RTE is largely vendor specific. It is
therefore only possible to define those common aspects that are visible to the outside
world such as the names of generated APIs and the definition of component data
structures that apply any operating mode.

5.3.9.3.1 Component Data Structures

The Component Data Structure (Section 5.4.2) is a per-component data type used to
define instance specific information required by the generated RTE.
[SWS_Rte_03711] d The generated RTE shall contain an instance of the relevant Com-
ponent Data Structure for each software-component instance on the ECU for which the
RTE is generated. c(SRS_Rte_00011)
[SWS_Rte_03712] d The name of a Component Data Structure instantiated by the
RTE generator shall be Rte_Instance_<name> where <name> is an automatically
generated name, created in some manner such that all instance data structure names
are unique. The name of a Component Data Structure instantiated by the RTE gener-

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ator shall be Rte_Instance_<name> where <name> is an automatically generated

name, created in some manner such that all instance data structure names are unique.
c(SRS_BSW_00307)
The software component instance name referred to in [SWS_Rte_03712] is never
made visible to the users of the generated RTE. There is therefore no need to specify
the precise form that the unique name takes. The Rte_Instance_ prefix is mandated
in order to ensure that no name clashes occur and also to ensure that the structures
are readily identifiable in map files, debuggers, etc.
The Rte_Instance_ prefix does NOT mean that the Component Data Structure
instance is identical to the instance handle type Rte_Instance described in sec-
tion 5.5.2; the prefix is mandated in order to ensure that no name clashes occur and
also to ensure that the structures are readily identifiable in map files, debuggers, etc.

5.3.9.3.2 Generated API

[SWS_Rte_01266] d The RTE module shall define the generated functions that will
be invoked when an AUTOSAR software-component makes an RTE API call. c
(SRS_Rte_00051)
The semantics of the generated functions are not defined (since these will obviously
vary depending on the RTE API call that it is implementing) nor are the implementation
details (which are vendor specific). However, the names of the generated functions
defined in Section 5.2.6.1.
The signature of a generated function is the same as the signature of the relevant RTE
API call (see Section 5.6) with the exception that the instance handle can be omitted
since the generated function is applicable to a specific software-component instance.

5.3.9.3.3 Callbacks

In addition to the generated functions for the RTE API, the RTE module includes call-
backs invoked by COM when signal events (receptions, transmission acknowledge-
ment, etc.) occur.
[SWS_Rte_01264] d The RTE module shall define COM callbacks for relevant signals.
c(SRS_Rte_00019)
The required callbacks are defined in Section 5.9.
[SWS_Rte_03795] d The RTE generator shall generate a separate header file contain-
ing the prototypes of callback functions. c(SRS_Rte_00019)
[SWS_Rte_03796] d The name of the header file containing the callback prototypes
shall be Rte_Cbk.h in a C/C++ environment. c(SRS_Rte_00019)
[SWS_Rte_03796] refers to the callbacks defined in section 5.9.

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5.3.9.3.4 Task bodies

The RTE module define task bodies for tasks created by the RTE generator only in
compatibility mode.
[SWS_Rte_01277] d In compatibility mode [SWS_Rte_01257], the RTE module shall
define all task bodies created by the RTE generator. c(SRS_Rte_00145)
Note that in vendor mode it is assumed that greater knowledge of the OS is available
and therefore the above requirement does not apply so that specific optimizations,
such as creating each task in a separate module, can be applied.

5.3.9.3.5 Lifecycle API

[SWS_Rte_01197] d The RTE module shall define the RTE lifecycle API. c
(SRS_Rte_00051)
The RTE lifecycle API is defined in Section 5.8.

5.3.9.4 Reentrancy

All code invoked by generated RTE code that can be subject to concurrent execution
must be reentrant. This requirement for reentrancy can be overridden if the gener-
ated code is not subject to concurrent execution, for example, if protected by a data
consistency mechanism to ensure that access to critical regions is call serialized.

5.3.10 RTE Post Build Variant Sets

[SWS_Rte_06620] d The RTE generator shall generate in the Rte_PBcfg.h file the
SchM_ConfigType type declaration of the predefined post build variants data struc-
ture. This header file must be used by other RTE modules to resolve their runtime
variabilities. c(SRS_Rte_00201)
[SWS_Rte_06638] d The RTE generator must generate a Rte_PBcfg.c file containing
the declarations and initializations of one or more RTE post build variants. Only one of
these variants can be active at runtime. c(SRS_Rte_00201, SRS_BSW_00346)
Within an RTE with post build variants, one active RtePostBuildVariantConfig-
uration will exist. It is a pointer to this structure that shall be passed to SchM_Init.
Also note that the container PredefinedVariant is only a Meta Model construct to
allow the designer to create a validated collection of values assigned to a criterion. It
is up to the implementer of the RTE generator to optimize variant configurations either
for size and/or performance by using different levels of indirection to the PostBuild-
VariantCriterionValues. For the least amount of indirection for example one can
have the criterion values at the level of the Sch_ConfigType. If you use post build

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loadable then you may want to reduce memory storage by reusing variant sets if they
remain unchanged across two or more predefined variants.
The following subsections provide examples for the SchM_ConfigType declaration
and instantiation only for demonstration purposes. No requirement what so ever is
implied.
RtePostBuildVariantConfiguration is a multipleConfigurationCon-
tainer and the RtePostBuildUsedPredefinedVariant reference within the
container is PostBuild configurable. This is required to permit that RtePostBuil-
dUsedPredefinedVariant parameters in different RtePostBuildVariantCon-
figuration containers can refer to different PredefinedVariants. Nevertheless
this PostBuild references result in the generation of different PostBuild Data Sets
whereas the RtePostBuildUsedPredefinedVariant reference itself is not actu-
ally post build configurable inside the RTE.

5.3.10.1 Example 1: File Contents Rte_PBcfg.h

An example of a flat data structure to represent the criterion values defined in the
Rte_PBcfg.h file containing theSchM_ConfigType type which can contain the list of
unique PostBuildVariantCriterion members. This approach immediately en-
forces that only one single criterion assignment can exist. The member names can,
for example, follow the template defined below where <sn> is the PostBuildVari-
antCriterion shortName.
1 struct SchM_ConfigType {
2 /* The PostBuildVariantCriterion shortname */
3 int VarCri_<sn>;
4 .
5 .
6 .
7 };

5.3.10.2 Example 2: File Contents Rte_PBcfg.h

An example showing an additional level of indirection and as such allows for reuse of
variant sets to optimize memory storage acorss for example several predefined vari-
ants is shown below. The RTE generator in this case can reuse some PostBuild-
VariantCriterionValueSets to reduce the memory resource consumption of an
ECU. The RTE generator can declare in the Rte_PBcfg.h file a structure type for each
distinct unique collection of PostBuildVariantCriterionValueSets containing
the PostBuildVariantCriterions as members. This implies that if two Prede-
finedVariants are defined each referring to a named PostBuildVariantCri-
terionValueSet and the list of PostBuildVariantCriterions in each of these
PostBuildVariantCriterionValueSets is identical that only one type is defined
for these two named PostBuildVariantCriterionValueSets. The name of the

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type can, for example, follow the pattern below where the <id> is a unique identifier
for that type (e.g. a counter).
1 struct Rte_VarSet_<id>_t {
2 /* The PostBuildVariantCriterion shortname */
3 int VarCri_<sn>;
4 .
5 .
6 .
7 };

Now the SchM_ConfigType type can be declared with pointers to these variant sets.
The member names of this struct can, for example, follow the template below where
<id> is a unique identifier.
1 struct SchM_ConfigType {
2 /* The PostBuildVariantCriterion shortname */
3 Rte_VarSet_<id>_t* VarSet_<id>_Ptr;
4 .
5 .
6 .
7 };

5.3.10.3 Examples: File Contents Rte_PBcfg.c

In correlation with example 1 of the header file the RTE generator can declare and op-
tionally initialize a default variant configuration named Rte_VarCfg in the Rte_PBcfg.c
file of the SchM_ConfigType type.
For example (the initializers are the criterion values):
1 const struct SchM_ConfigType Rte_VarCfg = {1,2,3,4,5};

And likewise for the example 2 header file the RTE generator can declare and initial-
ize in the Rte_PBcfg.c file all possible PostBuildVariantCriterionValueSets
and the RtePostBuildVariantConfigurations using references to these variant
sets.
For example:
1 const struct Rte_VarSet_1_t Rte_VarSet_1a = {1,2,3};
2 const struct Rte_VarSet_1_t Rte_VarSet_1b = {1,4,1};
3 const struct Rte_VarSet_2_t Rte_VarSet_2 = {2,5,7,3,2};
4 .
5 .
6 .

1 const struct SchM_ConfigType Rte_VarCfg_1 =

2 {&Rte_VarSet_1a,&Rte_VarSet_2};
3 const struct SchM_ConfigType Rte_VarCfg_2 =
4 {&Rte_VarSet_1b,&Rte_VarSet_2};
5 .
6 .
7 .

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When SchM_Init is called, a pointer to the active SchM_ConfigType will be

passed along which shall be assigned to the named Rte_VarCfgPtr which is of type
SchM_ConfigType*. This pointer shall be used to determine the values for actual
used PostBuildVariantCriterions and for variant validation when the DET is
enabled.
Example 1 pseudo code evaluating the criterions
1 switch(Rte_VarCfg->VarCri_1)
2 {
3 case 1:
4 /* DO SOMETHING */
5 break;
6 case 2:
7 /* DO SOMETHING ELSE */
8 }

Example 2 pseudo code evaluating the criterions

1 switch(Rte_VarCfgPtr->VarSet_1_Ptr->VarCri_1)
2 {
3 case 1:
4 /* DO SOMETHING */
5 break;
6 case 2:
7 /* DO SOMETHING ELSE */
8 }

Another type of optimization strategy (besides flattening) that can be applied is double
buffering for frequently used variant criterion values. The additional buffer can then be
used in the conditions to optimize the performance of the RTE, e.g.
1 BufferedVarCri_1 = Rte_VarCfgPtr->VarSet_1->VarCri_1;

5.4 RTE Data Structures

Object-code software components are compiled against an application header file cre-
ated during the RTE Contract phase but are linked against an RTE (and application
header file) created during the RTE Generation phase. When generated in com-
patibility mode, an RTE has to work for object-code components compiled against an
application header file created in compatibility mode, even if the application header file
was created by a different RTE generator. It is thus necessary to define the data struc-
tures and naming conventions for the compatibility mode to ensure that the object-code
is compatible with the generated RTE. An RTE generated in vendor mode only has to
work for those object-code components that were compiled against application header
files created in vendor mode by a compatible RTE generator (which in general would
mean an RTE generator supplied by the same vendor).

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The use of standardized data structures imposes tight constraints on the RTE imple-
mentation and therefore restricts the freedom of RTE vendors to optimize the solution
of object-code components but has the advantage that RTE generators from different
vendors can be used to compile an object-code software-component and to generate
the RTE. No such restrictions apply for the vendor mode. If an RTE generator operating
in vendor mode is used for an object-code component in both phases, vendor-specific
optimizations can be used.
Note that with the exception of data structures required for support object-code soft-
ware components in compatibility mode, the data structures used for RTE Generation
phase are not defined. This permits vendor specific API mappings and data structures
to be used for a generated RTE without loss of portability.
The following definitions only apply to RTE generators operating in compatibility mode
in this mode the instance handle and the component data structure have to be defined
even for those (object-code) software components for which multiple instantiation is
forbidden to ensure compatibility.

5.4.1 Instance Handle

The RTE is required to support object-code components as well as multiple instances

of the same AUTOSAR software-component mapped to an ECU [SRS_Rte_00011].
To minimise memory overhead all instances of a component on an ECU share code
[SRS_Rte_00012] and therefore both the RTE and the component instances require a
means to distinguish different instances.
Support for both object-code components and multiple instances requires a level of
indirection so that the correct generated RTE custom function is invoked in response to
a component action. The indirection is supplied by the instance handle in combination
with the API mapping defined in Section 5.2.6.
[SWS_Rte_01012] d The component instance handle shall identify particular instances
of a component. c(SRS_BSW_00312, SRS_Rte_00011)
The instance handle is passed to each runnable entity in a component when it is ac-
tivated by the RTE as the first parameter of the function implementing the runnable
entity [SWS_Rte_01016]. The instance handle is then passed back by the runnable
entity to the RTE, as the first parameter of each direct RTE API call, so that the RTE
can identify the correct component instance making the call. This scheme permits
multiple instances of a component on the same ECU to share code.
The instance handle indirection permits the name of the RTE API call that is used within
the component to be unique within the scope of a component as well as independent
of the components instance name. It thus enables object-code AUTOSAR software-
components to be compiled before the final RTE Generation phase when the instance
name is fixed.

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[SWS_Rte_01013] d For the RTE C/C++ API, any call that can operate on differ-
ent instances of a component that supports multiple instantiation supportsMulti-
pleInstantiation shall have an instance handle as the first formal parameter. c
(SRS_Rte_00011)
[SWS_Rte_03806] d If a component does not support multiple instantiation, the in-
stance handle parameter shall be omitted in the RTE C/C++ API and in the signature
of the RTE Hook functions. c(SRS_Rte_00011)
If the component does not support multiple instantiation, the instance handle is not
passed to the API calls and runnable entities as parameters. In order to support access
to the component data structure the name of the CDS is specified.
[SWS_Rte_03793] d If a software component does not support multiple instantia-
tion, the name of the component data instance shall be Rte_Inst_<cts>, where
<cts> is the component type symbol of the AtomicSwComponentType. c
(SRS_Rte_00011)
The data type of the instance handle is defined in Section 5.5.2.

Example 5.24
1 // --------------------------------------
2 // Application header file
3 // --------------------------------------
4

5 // ComponentDataStructure declaration
6 // [SWS_Rte_07132],[SWS_Rte_03714],[SWS_Rte_03733]
7 struct Rte_CDS_c
8 {
9 Rte_DE_uint8* re1_p_a;
10 Rte_DES_uint8* re2_p_a;
11 ...
12 };
13
14 // Instance handle type
15 // [SWS_Rte_01007], [SWS_Rte_01148],[SWS_Rte_01150],[SWS_Rte_06810]
16 typedef CONSTP2CONST(struct Rte_CDS_c, AUTOMATIC, RTE_CONST)
Rte_Instance;
17
18 // Instance handle declaration for swc without multiple instantiation
19 // [SWS_Rte_03793]
20 #define RTE_START_SEC_CONST_UNSPECIFIED
21 #include "Rte_MemMap.h"
22 extern CONSTP2CONST(struct Rte_CDS_c, RTE_CONST, RTE_CONST) Rte_Inst_c;
23 #define RTE_STOP_SEC_CONST_UNSPECIFIED
24 #include "Rte_MemMap.h"
25
26 //Api
27 #define Rte_IWrite_re1_p_a(v) ((Rte_Inst_c)->re1_p_a->value = (v))
28 #define Rte_IRead_re2_p_a() ((Rte_Inst_c)->re2_p_a->value)
29 #define Rte_IStatus_re2_p_a() ((Rte_Inst_c)->re2_p_a->status)
30
31 // -----------------------------------

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32 // Rte.c file
33 // -----------------------------------
34
35 // ComponentDataStructure definition
36 // [SWS_Rte_03711],[SWS_Rte_03712],[SWS_Rte_03715]
37 const struct Rte_CDS_c Rte_Instance_c1 =
38 {
39 ...
40 };
41
42 // Instance handle definition for swc without multiple instantiation
43 // [SWS_Rte_03793]
44 #define RTE_START_SEC_CONST_UNSPECIFIED
45 #include "Rte_MemMap.h"
46 CONSTP2CONST(struct Rte_CDS_c, RTE_CONST, RTE_CONST) Rte_Inst_c = &
Rte_Instance_c1;
47 #define RTE_STOP_SEC_CONST_UNSPECIFIED
48 #include "Rte_MemMap.h"

5.4.2 Component Data Structure

Different component instances share many common features - not least of which is
support for shared code. However, each instance is required to invoke different RTE
API functions and therefore the instance handle is used to access the component data
structure that defines all instance specific data.
It is necessary to define the component data structure to ensure compatibility between
the two RTE phases when operating in compatibility mode for example, a clever
compiler and linker may encode type information into a pointer type to ensure type-
safety. In addition, the structure definition cannot be empty since this is an error in
ANSI C.
[SWS_Rte_07132] d The component data structure type shall be defined in the Appli-
cation Header file. c(SRS_Rte_00011, SRS_Rte_00167)
[SWS_Rte_03714] d The type name of the component data structure shall be
Rte_[Byps]_CDS_<cts> where <cts> is the component type symbol of the
AtomicSwComponentType. [Byps_] is an optional infix used when component
wrapper method for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00305)
The members of the component data structure include function pointers. It is important
that such members are not subject to run-time modification and therefore the compo-
nent data structure is required to be placed in read-only memory.
[SWS_Rte_03715] d All instances of the component data structure shall be defined as
const (i.e. placed in read-only memory). c(SRS_BSW_00007)

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The elements of the component data structure are sorted into sections, each of which
defines a logically related section. The sections defined within the component data
structure are:
[SWS_Rte_03718] d Data Handles section. c(SRS_Rte_00011,
SRS_Rte_00051)
[SWS_Rte_03719] d Per-instance Memory Handles section. c(SRS_Rte_00011,
SRS_Rte_00051)
[SWS_Rte_01349] d Inter-runnable Variable Handles section. c
(SRS_Rte_00011, SRS_Rte_00051)
[SWS_Rte_03720] d Calibration Parameter Handles section. c(SRS_Rte_00011,
SRS_Rte_00051)
[SWS_Rte_03721] d Exclusive-area API section. c(SRS_Rte_00011,
SRS_Rte_00051)
[SWS_Rte_03716] d Port API section. c(SRS_Rte_00011, SRS_Rte_00051)
[SWS_Rte_03717] d Inter Runnable Variable API section. c(SRS_Rte_00011,
SRS_Rte_00051)
[SWS_Rte_07225] d Inter Runnable Triggering API section. c(SRS_Rte_00011,
SRS_Rte_00051)
[SWS_Rte_07837] d Instance Id section. c(SRS_Rte_00011, SRS_Rte_00051,
SRS_Rte_00244)
[SWS_Rte_08091] d RAM Block Data Updated Handles section. c
(SRS_Rte_00011, SRS_Rte_00051, SRS_Rte_00245)
[SWS_Rte_03722] d Vendor specific section. c(SRS_Rte_00011)
The order of elements within each section of the component data structure is defined
as follows;
[SWS_Rte_03723] d Section entries shall be sorted alphabetically (ASCII / ISO 8859-1
code in ascending order) unless stated otherwise. c(SRS_Rte_00051)
The sorting of entries is applied to each section in turn.
Note that there is no prefix associated with the name of each entry within a section;
the component data structure as a whole has the prefix and therefore there is no need
for each member to have the same prefix.
ANSI C does not permit empty structure definitions yet an instance handle is required
for the RTE to function. Therefore if there are no API calls then a single dummy entry
is defined for the RTE.
[SWS_Rte_03724] d If all sections of the Component Data Structure are empty
the Component Data Structure shall contain a uint8 with name Rte_Dummy. c
(SRS_Rte_00126)

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5.4.2.1 Data Handles Section

The data handles section is required to support the Rte_IRead and Rte_IWrite
calls (see Section 5.2.4).
[SWS_Rte_03733] d Data Handles shall be named <re>_<p>_<o> where <re> is the
runnable entity name that reads (or writes) the data item, <p> the port name, <o> the
data element. c(SRS_BSW_00305, SRS_Rte_00051)
A RunnableEntity can read and write to the same port/data element in case of a
PRPortPrototypes where as PPortPrototypes and RPortPrototypes are in-
herently uni-directional (a provide port can only be written, a require port can only be
read). Please note that for read and write access of a runnable to data in a PRPort-
Prototype only one data handle exist.
[SWS_Rte_06827] d The Data Handle shall be a pointer to a data element with
extended status if and only if the runnable has write access via a PRPortPro-
totype and acknowledgement is enabled for this data element. c(SRS_Rte_00051,
SRS_Rte_00185)
[SWS_Rte_02608] d The Data Handle shall be a pointer to a data element with
status if and only if either
the runnable has read access (via a RPortPrototype or PRPortPrototype)
and either
data element outdated notification or
data element invalidation or
data element never received status or
data element range check or
handleDataStatus
is activated for this data element, or
the runnable has write access via a PPortPrototype and acknowledgement is
enabled for this data element.
c(SRS_Rte_00051, SRS_Rte_00185)
[SWS_Rte_02588] d Otherwise, the data type for a Data Handle shall be a pointer to
a data element without status. c(SRS_Rte_00051)
See below for the definitions of these terms.
[SWS_Rte_06529] d The RTE Generator shall wrap each entry of Data Handles Sec-
tion in the component data structure of a variant existent Rte_IRead or Rte_IWrite
API if the variability shall be implemented.
1 #if (<condition>)
2
3 <Data Handles Section Entry>

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4
5 #endif

where condition is the condition value macro of the VariationPoint relevant for
the variant existence of the Rte_IRead or Rte_IWrite API (see [SWS_Rte_06515]),
Data Handles Section Entry is the code according an invariant Data Handles
Section Entry (see also [SWS_Rte_03733], [SWS_Rte_02608], [SWS_Rte_02588]) c
(SRS_Rte_00201)
[SWS_Rte_08777] d If the software component does not support multiple instantiation,
the data handles section shall be empty. c(SRS_Rte_00051)

5.4.2.1.1 Data Element without Status

[SWS_Rte_01363] d The data type for a data element without status shall be named
Rte_DE_<dt> where <dt> is the data elements ImplementationDataType name.
c(SRS_Rte_00051)
[SWS_Rte_01364] d A data element without status shall be a structure con-
taining a single member named value. c(SRS_Rte_00051)
[SWS_Rte_02607] d The value member of a data element without status
shall have the same data type as the corresponding data element. c(SRS_Rte_00051,
SRS_Rte_00147, SRS_Rte_00078)
Note that requirements [SWS_Rte_01364] and [SWS_Rte_02607] together imply that
creating a variable of data type Rte_DE_<dt> allocates enough memory to store the
data copy.

5.4.2.1.2 Data Element with Status

[SWS_Rte_01365] d The data type for a data element with status shall be named
Rte_DES_<dt> where <dt> is the data elements ImplementationDataType
name. c(SRS_Rte_00051)
[SWS_Rte_01366] d A data element with status shall be a structure containing
exactly two members. c(SRS_Rte_00051)
[SWS_Rte_03734] d The first member of each data element with status shall
be named value c(SRS_Rte_00051)
[SWS_Rte_02666] d The value member of a data element with status
shall have the type of the corresponding data element. c(SRS_Rte_00051,
SRS_Rte_00147, SRS_Rte_00078, SRS_Rte_00185)
[SWS_Rte_02589] d The second member of each data element with status
shall be named status. c(SRS_Rte_00051, SRS_Rte_00147, SRS_Rte_00078,
SRS_Rte_00185)

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[SWS_Rte_02590] d The status member of a data element with status

shall be of the Std_ReturnType type. c(SRS_Rte_00147, SRS_Rte_00078,
SRS_Rte_00185)
[SWS_Rte_02609] d In case of read access, the status member of a data element
with status shall contain the error status corresponding to the value member. c
(SRS_Rte_00147, SRS_Rte_00078)
[SWS_Rte_03836] d In case of write access, the status member of a data element
with status shall contain the transmission status corresponding to the value mem-
ber. c(SRS_Rte_00185)

5.4.2.1.3 Data Element with Extended Status

[SWS_Rte_06817] d The data type for a data element with extended status
(applies only for PRPortPrototypes) shall be named Rte_DEX_<dt> where <dt>
is the data elements ImplementationDataType name. c(SRS_Rte_00051)
[SWS_Rte_06818] d A data element with extended status shall be a struc-
ture containing exactly three members. c(SRS_Rte_00051)
[SWS_Rte_06819] d The first member of each data element with extended
status shall be named value. c(SRS_Rte_00051)
[SWS_Rte_06820] d The value member of a data element with extended
status shall have the type of the corresponding data element. c(SRS_Rte_00051,
SRS_Rte_00147, SRS_Rte_00078, SRS_Rte_00185)
[SWS_Rte_06821] d The second member of each data element with ex-
tended status shall be named status. c(SRS_Rte_00051, SRS_Rte_00147,
SRS_Rte_00078, SRS_Rte_00185)
[SWS_Rte_06822] d The status member of a data element with extended
status shall be of the Std_ReturnType type. c(SRS_Rte_00147, SRS_Rte_00078,
SRS_Rte_00185)
[SWS_Rte_06823] d The third member of each data element with ex-
tended status shall be named feedback. c(SRS_Rte_00051, SRS_Rte_00147,
SRS_Rte_00078, SRS_Rte_00185)
[SWS_Rte_06824] d The feedback member of a data element with extended
status shall be of the Std_ReturnType type. c(SRS_Rte_00147, SRS_Rte_00078,
SRS_Rte_00185)
[SWS_Rte_06825] d In case of read access, the status member of a data element
with extended status shall contain the error status corresponding to the value
member. c(SRS_Rte_00147, SRS_Rte_00078)

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[SWS_Rte_06826] d In case of write access, the feedback member of a data ele-

ment with extended status shall contain the transmission status corresponding
to the value member. c(SRS_Rte_00185)

5.4.2.1.4 Usage

A definition for every required data element with status, every data element
without status, and every data element with extended status is emitted
in the RTE Data Handle Types Header File (see Section 5.3.5).

Example 5.25

Consider a uint8 data element, a, of port p which is accessed using a VariableAc-

cess in the dataWriteAccess role by runnables re1 and re2 and a VariableAc-
cess in the dataReadAccess role by runnable re2 within component c. data el-
ement outdated is defined for this dataElement.
The required data types within the RTE Data Handle Types Header File would be:
1 typedef struct {
2 uint8 value;
3 } Rte_DE_uint8;
4

5 typedef struct {
6 uint8 value;
7 Std_ReturnType status;
8 } Rte_DES_uint8;

Considering additionally a uint16 data element d, of a port being a PRPortPro-

totype pr which is accessed using a VariableAccess in the dataWriteAccess
role and a dataReadAccess role by runnable re3 within component c. data ele-
ment outdated is defined for this dataElement and additionally acknowledgement
(transmissionAcknowledge) is requested.
The required data type within the RTE Data Handle Types Header File would be:
1 typedef struct {
2 uint16 value;
3 Std_ReturnType status;
4 Std_ReturnType feedback;
5 } Rte_DEX_uint16;

The component data structure for c would also include:

1 Rte_DE_uint8* re1_p_a;
2 Rte_DES_uint8* re2_p_a;
3 Rte_DEX_uint16* re3_pr_d;

A software-component that is supplied as object-code or is multiple instantiated re-

quires general purpose definitions of Rte_IRead, Rte_IWrite, Rte_IStatus and
Rte_IFeedback that use the data handles to access the data copies created within
the generated RTE. For example:

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1 #define Rte_IWrite_re1_p_a(instance,v) ((instance)->re1_p_a->value = (v

))
2 #define Rte_IWrite_re2_p_a(instance,v) ((instance)->re2_p_a->value = (v
))
3 #define Rte_IRead_re2_p_a(instance,v) ((instance)->re2_p_a->value)
4 #define Rte_IStatus_re2_p_a(instance) ((instance)->re2_p_a->status)
5 #define Rte_IWrite_re3_pr_d(instance,v) ((instance)->re3_pr_d->value =
(v))
6 #define Rte_IRead_re3_pr_d(instance) ((instance)->re3_pr_d->value)
7 #define Rte_IStatus_re3_pr_d(instance) ((instance)->re3_pr_d->status)
8 #define Rte_IFeedback_re3_pr_d(instance) ((instance)->re3_pr_d->
feedback)

The definitions of Rte_IRead, Rte_IWrite, Rte_IStatus, and Rte_IFeedback

are type-safe since an attempt to assign an incorrect type will be detected by the com-
piler.
For source code component that does not use multiple instantiation the definitions
of Rte_IRead, Rte_IWrite, Rte_IStatus, and Rte_IFeedback can remain as
above or vendor specific optimizations can be applied without loss of portability.

The values assigned to data handles within instances of the component data structure
created within the generated RTE depend on the mapping of tasks and runnables
See Section 5.2.4.

5.4.2.2 Per-instance Memory Handles Section

The Per-instance Memory Section Handles section enables to access instance specific
memory (sections).
[SWS_Rte_02301] d The CDS shall contain a handle for each Per-instance Memory.
This handle member shall be named Pim_<name> where <name> is the per-instance
memory name. c(SRS_BSW_00305, SRS_Rte_00051, SRS_Rte_00013)
The Per-instance Memory Handles are typed; [SWS_Rte_02302] d The data type
of each Per-instance Memory Handle shall be a pointer to the type of the per in-
stance memory that is defined in the Application Header file. c(SRS_Rte_00051,
SRS_Rte_00013)
The RTE supports the access to the per-instance memories by the Rte_Pim API.
[SWS_Rte_06527] d The RTE Generator shall wrap each entry of Per-instance Mem-
ory Handles Section in the component data structure of a variant existent PerIn-
stanceMemory or arTypedPerInstanceMemory if the variability shall be imple-
mented.
1 #if (<condition>)
2
3 <Per-instance Memory Handles Section Entry>
4

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5 #endif

where condition is the condition value macro of the VariationPoint rel-

evant for the variant existence of the Rte_Pim API (see [SWS_Rte_06518]),
Per-instance Memory Handles Section Entry is the code according an in-
variant Per-instance Memory Handles Section Entry (see also [SWS_Rte_02301],
[SWS_Rte_02302]) c(SRS_Rte_00201)

Example 5.26

Referring to the specification items [SWS_Rte_02301], [SWS_Rte_02302], and

[SWS_Rte_07133] Example 5.4 can be extended
with respect to the software-component header:
1 struct Rte_CDS_c {
2 ...
3 /* per-instance memory handle section */
4 Rte_PimType_c_MyMemType *Pim_mem;
5
6 ...
7 };
8
9 #define Rte_Pim_mem(instance) ((instance)->Pim_mem)

and in Rte.c:
1 Rte_PimType_c_MyMemType mem1;
2
3 const struct Rte_CDS_c Rte_Instance_c1 = {
4 ...
5 /* per-instance memory handle section */
6 /* Rte_PimType_c_MyMemType Pim_mem */
7 &mem1
8 ...
9 };

[SWS_Rte_08778] d If the software component does not support multiple instantiation,

the per-instance memory handles section shall be empty. c(SRS_Rte_00051)

5.4.2.3 Inter Runnable Variable Handles Section

Each runnable may require separate handling for the inter runnable variables that it
accesses. The indirection required for explicit access to inter runnable variables is
described in section 5.4.2.7. The inter runnable variable handles section within the
component data structure contains pointers to the (shadow) memory of inter runnable
variables that can be directly accessed with the implicit API macros. The inter runnable
variable handles section does not contain pointers for memory to handle inter runnable
variables that are accessed with explicit API only.

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[SWS_Rte_02636] d For each runnable and each inter runnable variable that is ac-
cessed implicitly by the runnable, there shall be exactly one inter runnable handle
member within the component data structure and this inter runnable variable handle
shall point to the (shadow) memory of the inter runnable variable for the runnable. c
(SRS_Rte_00142)
[SWS_Rte_01350] d The name of each inter runnable variable handle member within
the component data structure shall be Irv_<re>_<o> where <o> is the Inter-
Runnable Variable short name and <re> is short name of the runnable name. c
(SRS_Rte_00142)
[SWS_Rte_01351] d The data type of each inter runnable variable handle member
shall be a pointer to the type of the inter runnable variable. c(SRS_Rte_00142)
[SWS_Rte_06528] d The RTE Generator shall wrap each entry of Inter Runnable
Variable Handles Section in the component data structure of a variant existent
Rte_IrvRead or Rte_IrvWrite if the variability shall be implemented.
1 #if (<condition> [|| <condition>])
2
3 <Inter Runnable Variable Handles Section Entry>
4
5 #endif

where condition are the condition value macro(s) of the VariationPoint

relevant for the variant existence of the Rte_IrvRead or Rte_IrvWrite
API accessing the same Inter Runnable Variable (see [SWS_Rte_06519]),
Inter Runnable Variable Handles Section Entry is the code according an
invariant Inter Runnable Variable Handles Section Entry (see also [SWS_Rte_02636],
[SWS_Rte_01350], [SWS_Rte_01351]) c(SRS_Rte_00201)
[SWS_Rte_08779] d If the software component does not support multiple instantiation,
the inter runnable variable handles section shall be empty. c(SRS_Rte_00051)

5.4.2.4 Exclusive-area API Section

The exclusive-area API section includes exclusive areas that are accessed explicitly,
using the RTE API, by the SW-C. Each entry in the section is a function pointer to the
relevant RTE API function generated for the SW-C instance.
[SWS_Rte_03739] d If the according SwcExclusiveAreaPolicy.apiPrinciple
of the ExclusiveArea is set to "common", the name of each Exclusive-area
API section entry shall be <root>_<name> where <root> is either Entry or
Exit and <name> is the shortName of the ExclusiveArea. c(SRS_Rte_00051,
SRS_Rte_00032)
[SWS_Rte_04545] d If the according SwcExclusiveAreaPolicy.apiPrinciple
of the ExclusiveArea is set to "perExecutable", the name of each Exclusive-area
API section entry shall be <root>_<re>_<name> where <root> is either Entry or

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Exit, <re> is the shortName of the RunnableEntity with the canEnterExclu-

siveArea association, and <name> is the shortName of the ExclusiveArea. c
(SRS_Rte_00051, SRS_Rte_00032)
[SWS_Rte_03740] d The data type of each Exclusive-area API section entry shall be
a function pointer that points to the generated RTE API function. c(SRS_Rte_00051,
SRS_Rte_00032)
[SWS_Rte_06521] d The RTE Generator shall wrap each definition of a variant existent
Rte_Enter and Rte_Exit in the Exclusive-area API section according table 4.17 if
the variability shall be implemented.
1 #if (<condition>)
2
3 <Exclusive-area API section entry>
4
5 #endif

where condition is the condition value macro of the VariationPoint rel-

evant for the variant existence of the Rte_Enter and Rte_Exit API (see
[SWS_Rte_06518]), Exclusive-area API section entry is the code ac-
cording an invariant Exclusive-area section entry (see also [SWS_Rte_03739],
[SWS_Rte_03740]) c(SRS_Rte_00201)
[SWS_Rte_03812] d Entries in the Exclusive-area API section shall be sorted alpha-
betically. c(SRS_Rte_00051, SRS_Rte_00032)
Note that two function pointers will be required for each accessed exclusive area; one
for the Entry function and one for the Exit function.
[SWS_Rte_08780] d If the software component does not support multiple instantiation,
the exclusive-area API section shall be empty. c(SRS_Rte_00051)

5.4.2.5 Port API Section

Port API section comprises zero or more function references within the component
data structure type that defines all API functions that access a port and can be invoked
by the software-component (instance).
[SWS_Rte_02616] d The function table entries for port access shall be grouped by the
port names into port data structures. c(SRS_Rte_00051)
Each entry in the port API section of the component data structure is a port data
structure.
[SWS_Rte_02617] d The name of each port data structure in the component data
structure shall be <p> where <p> is the port short-name. c(SRS_Rte_00051)
[SWS_Rte_03799] d The component data structure shall contain a port data structure
for port p only if at least one API from table 5.1 is present and either the component

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supports multiple instantiation or if the indirectAPI attribute for p is set to true. c

(SRS_Rte_00051)
[SWS_Rte_06522] d The RTE Generator shall wrap each port data structure of a vari-
ant existent PortPrototype if the variability shall be implemented.
1 #if (<condition>)
2
3 <port data structure>
4

5 #endif

where condition is the condition value macro of the VariationPoint rele-

vant for the variant existence of the PortPrototype (see [SWS_Rte_06520],
port data structure is the code according an invariant port data structures (see
also [SWS_Rte_02617], [SWS_Rte_03799]) c(SRS_Rte_00201)
[SWS_Rte_03731] d The data type name for a port data structure shall be
struct Rte_PDS_<cts>_<i>_<P/R/PR>
where <cts> is the component type symbol of the AtomicSwComponentType,
<i> is the port interface name and
P, R or PR are literals to indicate provide, require or provide-require ports respec-
tively. c(SRS_BSW_00305, SRS_Rte_00051)
[SWS_Rte_CONSTR_09080] The shortNames of PortInterfaces shall be unique
within a software component if it supports multiple instantiation or indirec-
tAPI attribute is set to true d The shortNames of PortInterfaces shall be unique
within a software component for each set of PPortPrototypes or RPortPrototypes if the
software component supports multiple instantiation or if the indirectAPI attribute is
set to true for at least one require or provide port.
This is required to generate distinguishable Port Data Structure data types. c()
[SWS_Rte_08312] d The RTE generator shall reject a configuration violating the
[SWS_Rte_CONSTR_09080]. c(SRS_Rte_00051)
[SWS_Rte_07137] d The port data structure type(s) shall be defined in the Application
Header file. c(SRS_Rte_00051)
A port data structure type is defined for each port interface that types a port. Thus
different ports typed by the same port interface structure share the same port data
structure type.
[SWS_Rte_07138] d The Application Header file shall contain a definition of a port
data structure type for interface i and port type R, P, PR only if the component supports
multiple instantiation or at least one require, provide or provide-require port exists that
has the indirectAPI attribute set to true. c(SRS_Rte_00051)

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[SWS_Rte_06523] d The RTE Generator shall wrap each port data structure type re-
lated to variant existent PortPrototypes if the variability shall be implemented and if
all require PortPrototypes or all provide PortPrototypes are variant.
1 #if (<condition> [|| <condition>])
2
3 <port data structure type>
4

5 #endif

where condition are the condition value macro(s) of the VariationPoints rele-
vant for the variant existence of the PortPrototypes requiring the port data structure
type (see [SWS_Rte_06520]), port data structure type is the code according
an invariant port data structure type (see also [SWS_Rte_03731], [SWS_Rte_07138],
[SWS_Rte_03730] [SWS_Rte_02620]) c(SRS_Rte_00201)
Note: If any invariant PortPrototype requires the port data structure type it shall be
defined unconditional.
[SWS_Rte_07677] d The RTE shall support an indirect API for the port access func-
tions listed in table 5.1. c(SRS_Rte_00051)
[SWS_Rte_03730] d A port data structure shall contain a function table entry for each
API function associated with the port as referenced in table 5.1. Pure API macros,
like Rte_IRead and other implicit API functions, do not have a function table entry. c
(SRS_Rte_00051)
API function reference
Rte_Send_<p>_<o> 5.6.5
Rte_Write_<p>_<o> 5.6.5
Rte_Switch_<p>_<o> 5.6.6
Rte_Invalidate_<p>_<o> 5.6.7
Rte_Feedback_<p>_<o> 5.6.8
Rte_SwitchAck_<p>_<o> 5.6.9
Rte_Read_<p>_<o> 5.6.10
Rte_DRead_<p>_<o> 5.6.10
Rte_Receive_<p>_<o> 5.6.12
Rte_Call_<p>_<o> 5.6.13
Rte_Result_<p>_<o> 5.6.14
Rte_Prm_<p>_<o> 5.6.17
Rte_Mode_<p>_<o> 5.6.30
Rte_Trigger_<p>_<o> 5.6.32
Rte_IsUpdated_<p>_<o> 5.6.35

Table 5.1: Table of API functions that are referenced in the port API section.

[SWS_Rte_02620] d An API function shall only be included in a port data structure, if

it is required at least by one port. c(SRS_Rte_00051)
[SWS_Rte_02621] d If a function table entry is available in a port data structure, the
corresponding function shall be implemented for all ports that use this port data struc-

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ture type. API functions related to ports that are not required by the AUTOSAR config-
uration shall behave like those for an unconnected port. c(SRS_Rte_00051)
APIs may be required only for some ports of a software component instance
due to differences in for example the need for transmission acknowledgement.
[SWS_Rte_02621] is necessary for the concept of the indirect API. It allows iteration
over ports.
[SWS_Rte_01055] d The name of each function table entry in a port data structure
shall be <name>_<o> where <name> is the API root (e.g. Call, Write) and <o> the
data element or operation name. c(SRS_BSW_00305, SRS_Rte_00051)
Requirement [SWS_Rte_01055] does not include the port name in the function table
entry name since the port is implicit when using a port handle.
[SWS_Rte_03726] d The data type of each function table entry in a port data
structure shall be a function pointer that points to the generated RTE function. c
(SRS_Rte_00051)
The signature of a generated function, and hence the definition of the function pointer
type, is the same as the signature of the relevant RTE API call (see Section 5.6) with
the exception that the instance handle is omitted.

Example 5.27

This example shows a port data structure for the provide ports of the interface type i2
in an AUTOSAR SW-C c.
i2 is a SenderReceiverInterface which contains a data element prototype of type
uint8 with data semantics.
If one of the provide ports of c for the interface i2 has a transmission acknowledge-
ment defined and i2 is not used with data element invalidation, the Applica-
tion Header file would include a port data structure type like this:
1 struct Rte_PDS_c_i2_P {
2 Std_ReturnType (*Feedback_a)(uint8);
3 Std_ReturnType (*Write_a)(uint8);
4 }

If the provide port p1 of the AUTOSAR SW-C c is of interface i2, the generated Ap-
plication Header file would include the following macros to provide the direct API func-
tions Rte_Feedback_p1_a and Rte_Write_p1_a:
1 /*direct API*/
2 #define Rte_Feedback_p1_a(inst,data)
3 ((inst)->p1.Feedback_a)(data)
4 #define Rte_Write_p1_a(inst,data) ((inst)->p1.Write_a)(data)

[SWS_Rte_02618] d The port data structures within a component data structure shall
first be sorted on the port data structure type name and then on the short name of the
port. c(SRS_Rte_00051)

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The requirements [SWS_Rte_03731] and [SWS_Rte_02618] guarantee, that all port

data structures within the component data structure are grouped by their interface type
and require/provide-direction.

Example 5.28

This example shows the grouping of port data structures within the component data
structure.
The Application Header file for an AUTOSAR SW-C c with three provide ports p1, p2,
and p3 of interface i2 would include a block of port data structures like this:
1 struct Rte_CDS_c {
2 ...
3 struct Rte_PDS_c_i1_R z;
4
5 /* component data structures *
6 * for provide ports of interface i2 */
7 struct Rte_PDS_c_i2_P p1;
8 struct Rte_PDS_c_i2_P p2;
9 struct Rte_PDS_c_i2_P p3;
10
11 /*further component data structures*/
12 struct Rte_PDS_c_i2_R c;
13 ...
14 }

If inst is a pointer to a component data structure, and ph is defined by

1 struct Rte_PDS_c_i2_P *ph = &(inst->p1);

ph points to the port data structure p1 of the instance handle inst. Since the three
provide port data structures p1, p2, and p3 of interface i2 are ordered sequentially
in the component data structure, ph can also be interpreted as an array of port data
structures. E.g., ph[2] is equal to inst->p3.
In the following, ph will be called a port handle.

[SWS_Rte_01343] d RTE shall create port handle types for each port data structure
using typedef to a pointer to the appropriate port data structure. c(SRS_Rte_00051)
[SWS_Rte_01342] d The port handle type name shall be
Rte_PortHandle_<i>_<P/R/PR> where <i> is the port interface name and
P, R or PR are literals to indicate provide, require or provide-require ports
respectively. c(SRS_Rte_00051)
[SWS_Rte_06524] d The RTE Generator shall wrap each port handle type related
to variant existent PortPrototypes if the variability shall be implemented and if all
require PortPrototypes or all provide PortPrototypes are variant.
1 #if (<condition> [|| <condition>])
2
3 <port handle type>
4

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5 #endif

where condition are the condition value macro(s) of the VariationPoints rele-
vant for the variant existence of the PortPrototypes requiring the port data structure
type (see [SWS_Rte_06520]), port data structure type is the code according
an invariant port data structure type (see also [SWS_Rte_01343], [SWS_Rte_01342])
c(SRS_Rte_00201)
[SWS_Rte_01053] d The port handle types shall be written to the application header
file. c(SRS_Rte_00051)
RTE provides port handles for access to the arrays of port data structures of the same
interface type and provide/receive direction by the macro Rte_Ports, see section
5.6.1, and to the number of similar ports by the macro Rte_NPorts, see 5.6.1.

Example 5.29

For the provide port i2 of AUTOSAR SW-C c from example 5.27, the following port
handle type will be defined in the Application Header file:
1 typedef struct Rte_PDS_c_i2_P *Rte_PortHandle_i2_P;

The macros to access the port handles for the indirect API might look like this in the
generated Application Header file:
1 /*indirect (port oriented) API*/
2 #define Rte_Ports_i2_P(inst) &((inst)->p1)
3 #define Rte_NPorts_i2_P(inst) 3

So, the port handle ph of the previous example 5.28 could be defined by a user as:
1 Rte_PortHandle_i2_P ph = Rte_Ports_i2_P(inst);

To write 49 on all ports p1 to p3, the indirect API can be used within the software
component as follows:
1 uint8 p;
2 Rte_PortHandle_i2_P ph = Rte_Ports_i2_P(inst);
3 for(p=0;p<Rte_NPorts_i_P(inst);p++) {
4 ph[p].Write_a(49);
5 }

Software components may also want to set up their own port handle arrays to
iterate over a smaller sub group than all ports with the same interface and direction.
Rte_Port can be used to pick the port handle for one specific port, see 5.6.3.

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5.4.2.6 Calibration Parameter Handles Section

The RTE is required to support access to calibration parameters derived by per-

instance ParameterDataPrototypes (see 4.2.8.3) using the Rte_CData (see sec-
tion 5.6.16).
[SWS_Rte_03835] d The name of each Calibration parameter handle shall be
CData_<name> where <name> is the ParameterDataPrototype name. c
(SRS_Rte_00051, SRS_Rte_00154, SRS_Rte_00155)
[SWS_Rte_03949] d The type of each calibration parameter handle shall be a
function pointer that points to the generated RTE function. c(SRS_Rte_00051,
SRS_Rte_00154, SRS_Rte_00155)
Note that accesses to ParameterDataPrototypes within ParameterSwCompo-
nentTypes do not result in any handles within this section since the generated
Rte_Prm (see section 5.6.17) API is accessed either directly (single instantiation) or
through handles in the port API section (multiple instantiation). Likewise, access to
shared ParameterDataPrototypes does not result in any handle in the Calibration
Parameter Handles Section since, by definition, no per-instance data is present.
[SWS_Rte_08782] d If the software component does not support multiple instantiation,
the calibration parameter handles section shall be empty. c(SRS_Rte_00051)

5.4.2.7 Inter Runnable Variable API Section

The Inter Runnable Variable API section comprises zero or more function table entries
within the component data structure type that defines all explicit API functions to access
an inter runnable variable by the software-component (instance). The API for implicit
access of inter runnable variables does not have any function table entries, since the
implicit API uses macros to access the inter runnable variables or their shadow mem-
ory directly, see section 5.4.2.3.
Since the entries of this section are only required to access the explicit InterRunnable-
Variable API if a software component supports multiple instantiation, it shall be omitted
for software components which do not support multiple instantiation.
[SWS_Rte_03725] d If the component supports multiple instantiation, the member
name of each function table entry within the component data structure shall be
<name>_<re>_<o> where <name> is the API root (e.g. IrvRead), <re> the runnable
name, and <o> the inter runnable variable name. c(SRS_Rte_00051)
[SWS_Rte_03752] d The data type of each function table entry shall be a function
pointer that points to the generated RTE function. c(SRS_Rte_00051)
The signature of a generated function, and hence the definition of the function pointer
type, is the same as the signature of the relevant RTE API call (see Section 5.6) with
the exception that the instance handle is omitted.

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[SWS_Rte_02623] d If the component supports multiple instantiation, the Inter Runn-

able Variable API Section shall contain pointers to API functions as listed in table 5.2.
c(SRS_Rte_00051)

API function reference

Rte_IrvRead_<re>_<o> 5.6.26
Rte_IrvWrite_<re>_<o> 5.6.27

Table 5.2: Table of API functions that are referenced in the inter runnable variable API
section

[SWS_Rte_06525] d The RTE Generator shall wrap each entry of Inter Runnable Vari-
able API Section in the component data structure of a variant existent Rte_IrvRead
or Rte_IrvWrite API if the variability shall be implemented.
1 #if (<condition>)
2

3 <Inter Runnable Variable API Section Entry>

4
5 #endif

where condition is the condition value macro of the VariationPoint rele-

vant for the variant existence of the Rte_IrvRead or Rte_IrvWrite API (see
[SWS_Rte_06519]), Inter Runnable Variable API Section Entry is the
code according an invariant Inter Runnable Variable API Section Entry (see also
[SWS_Rte_03725], [SWS_Rte_03752], [SWS_Rte_02623]) c(SRS_Rte_00201)
[SWS_Rte_03791] d If the software component does not support multiple instantiation,
the inter runnable variable API section shall be empty. c(SRS_Rte_00051)
[SWS_Rte_08783] d If the software component does not support multiple instantiation,
the inter runnable variable API section shall be empty. c(SRS_Rte_00051)

5.4.2.8 Inter Runnable Triggering API Section

The Inter Runnable Triggering API Section includes the Inter Runnable Triggering API
handles. Each entry in the section is a function pointer to the relevant RTE API function
generated for the SW-C instance.
[SWS_Rte_07226] d The name of each Inter Runnable Triggering handle shall be
Rte_IrTrigger_<re>_<name> where <re> is the name of the runnable entity the
API might be used and <name> is the name of the InternalTriggeringPoint. c
(SRS_Rte_00051, SRS_Rte_00163)
[SWS_Rte_07227] d The data type of each Inter Runnable Triggering handle entry
shall be a function pointer that points to the generated RTE API function defined in
5.6.33. c(SRS_Rte_00051, SRS_Rte_00163)

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[SWS_Rte_06526] d The RTE Generator shall wrap each entry of Inter Runnable Trig-
gering handle in the component data structure of a variant existent Rte_IrTrigger
API if the variability shall be implemented.
1 #if (<condition>)
2
3 <Inter Runnable Variable API Section Entry>
4

5 #endif

where condition is the condition value macro of the VariationPoint rele-

vant for the variant existence of the Rte_IrTrigger API (see [SWS_Rte_06519],
Inter Runnable Variable API Section Entry is the code according an in-
variant Inter Runnable Variable API Section Entry (see also [SWS_Rte_03725],
[SWS_Rte_03752], [SWS_Rte_02623]) c(SRS_Rte_00201)
[SWS_Rte_07228] d Entries in the Inter Runnable Triggering handles section shall be
sorted alphabetically. c(SRS_Rte_00051, SRS_Rte_00163)
[SWS_Rte_08784] d If the software component does not support multiple instantiation,
the inter runnable triggering API section shall be empty. c(SRS_Rte_00051)

5.4.2.9 Instance Id Section

[SWS_Rte_07838] d If a software component type supports multiple instantiation,

the RTE generator shall add in the Component Data Structure Instance Id Section
an element named Instance_Id of type uint8. c(SRS_Rte_00011, SRS_Rte_00051,
SRS_Rte_00244)
[SWS_Rte_07839] d For each prototype of a software component type that supports
multiple instantiation, the RTE generator shall set the value of the element Instance_Id
from 0 to N-1 according to the number (N) of software component prototypes and
according to the names of the software component prototypes sorted alphabetically
(ASCII / ISO 8859-1 code in ascending order). c(SRS_Rte_00011, SRS_Rte_00051,
SRS_Rte_00244)
Example: Two prototypes (instances) named A and B of a software component type
exist:
Instance_Id for instance A takes the value 0.
Instance_Id for instance B takes the value 1.
Note: The Instance_Id should not be used by the runnable implementation. The In-
stance_Id has been created to support implementation of bypass on software compo-
nent that supports multiple instantiation.
[SWS_Rte_08785] d If the software component does not support multiple instantiation,
the instance id section shall be empty. c(SRS_Rte_00051)

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5.4.2.10 RAM Block Data Updated Handles Section

The RAM Block Data Updated Handles section is required to express an update of
implicit written NV data in case the NvBlockSwComponentType is used (see section
4.2.9.2). For that purpose each RAM Block Updated Handle accesses a separate "dirty
flag".
[SWS_Rte_08092] d The CDS shall contain a handle for each SwcServiceDepen-
dency defining a RoleBasedPortAssignment in the role NvDataPort. This handle
member shall be named DF_<name> where <name> is the SwcServiceDependency
name. c(SRS_Rte_00051, SRS_Rte_00245)
[SWS_Rte_08093] d The data type of each RAM Block Data Updated Handle shall be
a pointer to boolean. c(SRS_Rte_00051, SRS_Rte_00245)
The RTE supports the access to dirty flags for implicit communication by invoking the
Rte_IWrite and Rte_IWriteRef APIs.
[SWS_Rte_08094] d The invocation of any Rte_IWrite or Rte_IWriteRef API of
a data belonging to a PPortPrototype / PRPortPrototype referenced in the role
NvDataPort by a SwcServiceDependency shall set the related dirty flag addressed
by the RAM Block Updated Handle to TRUE. c(SRS_Rte_00051, SRS_Rte_00245)
[SWS_Rte_07416] d For a VariableDataPrototype belonging to a PPortPro-
totype / PRPortPrototype referenced in the role NvDataPort by a SwcSer-
viceDependency the RTE shall, after the NvM has been informed, set the related
dirty flag addressed by the RAM Block Updated Handle to FALSE. c(SRS_Rte_00051,
SRS_Rte_00245)
The NvM is informed of the status change through either the invocation of
NvM_SetRamBlockStatus [SWS_Rte_08081] or directly through NvM_WriteBlock
[SWS_Rte_08085]. The invocation of either is guarded by a check on the dirty flag.
[SWS_Rte_08095] d The RTE Generator shall wrap each entry of RAM Block Data
Updated Handles Section related to variant existent PPortPrototypes / PRPort-
Prototypes referenced in the role NvDataPort by a SwcServiceDependency if
the variability shall be implemented.
1 #if (<condition>)
2
3 <RAM Block Data Updated Handles Section Entry>
4

5 #endif

where condition are the condition value macros of the VariationPoints rele-
vant for the variant existence of the Rte_IWrite and Rte_IWriteRef APIs (see
[SWS_Rte_06518]); the single condition value macros are concatenated with logical
or (k) operators to ensure the availability of the handle if any relevant API is existent,
RAM Block Data Updated Handles Section Entry is the code according an
invariant RAM Block Data Updated Handles Section Entry where condition are the

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condition value macros of the VariationPoints concatenated with logical or (k)

operators (see also [SWS_Rte_08092], [SWS_Rte_08093]). c(SRS_Rte_00201)

5.4.2.11 Vendor Specific Section

The vendor specific section is used to contain any vendor specific data required to be
supported for each instances. By definition the contents of this section are outside the
scope of this chapter and only available for use by the RTE generator responsible for
the RTE Generation phase.
[SWS_Rte_08786] d If the software component does not support multiple instantiation,
the vendor specific section shall be empty. c(SRS_Rte_00051)

5.5 API Data Types

Besides the API functions for accessing RTE services, the API also contains RTE-
specific data types.

5.5.1 Std_ReturnType

The specification in [31] specifies a standard API return type Std_ReturnType. The
Std_ReturnType defines the "status" and "error values" returned by API functions.
It is defined as a uint8 type. The value 0 is reserved for No error occurred.
LSB MSB
0 1 2 3 4 5 6 7
Overlayed Error Flag
Error Flag
Immediate Infrastructure
error codes
available for
6 bits

Figure 5.13: Bit-Layout of the Std_ReturnType

Figure 5.13 shows the general layout of Std_ReturnType.

The two most significant bits of the Std_ReturnType are reserved flags:
The most significant bit 7 of Std_ReturnType is the Immediate Infrastructure
Error Flag with the following values

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1 the error code indicates an immediate infrastructure error.

0 the error code indicates no immediate infrastructure error.
The second most significant bit 6 of Std_ReturnType is the Overlayed Error
Flag. The use of this flag depends on the context and will be explained in table
5.4.
In order to avoid explicit access to bit numbers in the code, the RTE provides the three
following macros that enables an application to check the return value of an API:
[SWS_Rte_07404] d For infrastructure errors, this macro is a boolean expression
that is true if the corresponding bit is set:
1 #define Rte_IsInfrastructureError(status) ((status & 128U) !=
0)

c()
[SWS_Rte_07405] dFor overlayed errors, this macro is a boolean expression that
is true if the corresponding bit is set:
1 #define Rte_HasOverlayedError(status) ((status & 64U) != 0)

c()
[SWS_Rte_07406] dFor reading only the application error code without the even-
tual overlayed error, the following macro returns the lower 6 bits of the error code:
1 #define Rte_ApplicationError(status) (status & 63U)

c()

5.5.1.1 Infrastructure Errors

Infrastructure errors are split into two groups:

Immediate Infrastructure Errors can be associated with the currently available
data set. These Immediate Infrastructure Errors are mutually exclu-
sive. Only one of these errors can be notified to a SW-C with one API call.
[SWS_Rte_02593] d Immediate Infrastructure Errors shall override
any application level error. c(SRS_Rte_00084, SRS_Rte_00123)
Immediate Infrastructure Error codes are used on the receiver side for
errors that result in no reception of application data and application errors.
An Immediate Infrastructure Error is indicated in the
Std_ReturnType by the Immediate Infrastructure Error Flag
being set.

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Overlayed Errors are associated with communication events that happened af-
ter the reception of the currently available data set, e.g., data element out-
dated notification, or loss of data elements due to queue overflow.
[SWS_Rte_01318] d Overlayed Error Flags shall be reported using the
unique bit of the Overlayed Error Flag within the Std_ReturnType type.
c(SRS_Rte_00084, SRS_Rte_00094)
An Overlayed Error can be combined with any other application or infrastruc-
ture error code.

5.5.1.2 Application Errors

[SWS_Rte_02573] d RTE shall support application errors with the following format def-
inition: Application errors are coded in the least significant 6 bits of Std_ReturnType
with the Immediate Infrastructure Error Flag set to 0. The application er-
ror code does not use the Overlayed Error Flag. c(SRS_Rte_00124)
This results in the following value range for application errors:
range minimum value maximum value
application errors 1 63

Table 5.3: application error value range

In client server communication, the server may return any value within the application
error range. The client will then receive one of the following:
An Immediate Infrastructure Error to indicate that the communication
was not successful, or
The server return code, or
The server return code might be overlayed by the Overlayed Error Flag in
a future release of RTE. In this release, there is no overlayed error defined for
client server communication.
The client can filter the return value, e.g., by using the following code:
Std_ReturnType status;
status = Rte_Call_<p>_<o>(<instance>, <parameters>);
if (Rte_HasOverlayedError(status)) {
/* handle overlayed error flag *
* in this release of the RTE, the flag is reserved *
* but not used for client server communication */

if(Rte_IsInfrastructureError(status)) {
/* handle infrastructure error */

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}
else {
/* handle application error with error code status */
status = Rte_ApplicationError(status);
}

5.5.1.3 Predefined Error Codes

For client server communication, application error values are defined per client server
interface and shall be passed to the RTE with the interface configuration.
The following standard error and status identifiers are defined:
Symbolic name Value Comments
[SWS_Rte_01058] d RTE_E_OK c 0 No error occurred.
(SRS_BSW_00327)

Standard Application Error Values:

[SWS_Rte_02594] d 1 Generic application error indicated by signal in-
RTE_E_INVALID c validation in sender receiver communication with
(SRS_BSW_00327, SRS_Rte_00078) data semantics on the receiver side.
To be defined by the corresponding 1 Returned by AUTOSAR Services to indicate a
AUTOSAR Service generic application error.

Immediate Infrastructure Error codes

[SWS_Rte_01060] d 128 An IPDU group was disabled while the applica-
RTE_E_COM_STOPPED c tion was waiting for the transmission acknowl-
(SRS_BSW_00327) edgment. No value is available. This is not con-
sidered a fault, since the IPDU group is switched
off on purpose.
This semantics are as follows:
the OUT buffers of a client are not modi-
fied,
the explicit read APIs read the last known
value (or init value),
no runnable with startOnEvent on a
DataReceivedEvent for this, VariableDat-
aPrototype is triggered,
the buffers for implicit read access will
keep the previous value.

[SWS_Rte_01064] d 129 A blocking API call returned due to expiry of a lo-

RTE_E_TIMEOUT c cal timeout rather than the intended result. OUT
(SRS_BSW_00327, SRS_Rte_00069) buffers are not modified. The interpretation of
this being an error depends on the application.

[SWS_Rte_01317] d RTE_E_LIMIT c 130 A internal RTE limit has been exceeded. Re-
(SRS_BSW_00327) quest could not be handled. OUT buffers are not
modified.

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Symbolic name Value Comments

[SWS_Rte_01061] d 131 An explicit read API call returned no data. (This
RTE_E_NO_DATA c is no error.)
(SRS_BSW_00327)
[SWS_Rte_01065] d 132 Transmission acknowledgement received.
RTE_E_TRANSMIT_ACK c
(SRS_BSW_00327)
[SWS_Rte_07384] d 133 No data received for the corresponding un-
RTE_E_NEVER_RECEIVED c queued data element since system start or parti-
(SRS_BSW_00327, SRS_Rte_00184) tion restart.

[SWS_Rte_07655] d 134 The port used for communication is not con-

RTE_E_UNCONNECTED c nected.
(SRS_BSW_00327, SRS_Rte_00139,
SRS_Rte_00200)
[SWS_Rte_02739] d 135 The error is returned by a blocking API and in-
RTE_E_IN_EXCLUSIVE_AREA c dicates that the runnable could not enter a wait
(SRS_BSW_00327) state. This could be for example because one
ExecutableEntity of the current tasks call
stack has entered an ExclusiveArea.

[SWS_Rte_02757] d 136 The error can be returned by an RTE API, if the

RTE_E_SEG_FAULT c parameters contain a direct or indirect reference
(SRS_BSW_00327) to memory that is not accessible from the callers
partition.

[SWS_Rte_08065] d 137 The received data is out of range.

RTE_E_OUT_OF_RANGE c
(SRS_BSW_00327, SRS_Rte_00180)
[SWS_Rte_08725] d 138 An error during transformation occured.
RTE_E_SERIALIZATION_
ERROR, RTE_E_HARD_TRANSFORMER_
ERROR c(SRS_Rte_00091,
SRS_BSW_00327)
[SWS_Rte_08726] d 139 Buffer for transformation operation could not be
RTE_E_SERIALIZATION_ created.
LIMIT, RTE_E_TRANSFORMER_
LIMIT c(SRS_Rte_00091,
SRS_BSW_00327)
[SWS_Rte_08551] d 140 An error during transformation occured which
RTE_E_SOFT_TRANSFORMER_ shall be notified to the SWC but still produces
ERROR c(SRS_Rte_00091, valid data as output (comparable to a warning).
SRS_BSW_00327)
[SWS_Rte_01389] d 141 The transmission/reception could not be per-
RTE_E_COM_BUSY c formed due to another transmission/reception
(SRS_Rte_00246) currently ongoing for the same signal.

Overlayed Errors
These errors do not refer to the data returned with the API. They can be overlayed
with other Application- or Immediate Infrastructure Errors.

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Symbolic name Value Comments

[SWS_Rte_02571] d 64 An API call for reading received data with event
RTE_E_LOST_DATA c semantics indicates that some incoming data
(SRS_BSW_00327, SRS_Rte_00107, has been lost due to an overflow of the receive
SRS_Rte_00110, SRS_Rte_00094) queue or due to an error of the underlying com-
munication stack.

[SWS_Rte_02702] d 64 An API call for reading received data with data

RTE_E_MAX_AGE_EXCEEDED c semantics indicates that the available data has
(SRS_BSW_00327, SRS_Rte_00078) exceeded the aliveTimeout limit. A COM signal
outdated callback will result in this error.

Table 5.4: RTE Error and Status values

The underlying type for Std_ReturnType is defined as a uint8 for reasons of com-
patibility it avoids RTEs from different vendors assuming a different size if an enum
was the underlying type. Consequently, #define is used to declare the error values:
1 typedef uint8 Std_ReturnType;
2
3 #define RTE_E_OK 0U

[SWS_Rte_01269] d The standard errors as defined in table 5.4 including RTE_E_OK

shall be defined in the RTE Header File. c(SRS_Rte_00051)
[SWS_Rte_02575] d Application Error Identifiers with exception of RTE_E_INVALID
shall be defined in the Application Header File. c(SRS_Rte_00124, SRS_Rte_00167)
[SWS_Rte_02576] d The application errors shall have a symbolic name defined as
follows:
1 #define RTE_E_<interface>_<error> <error value>U

where <interface> PortInterface and <error> ApplicationError are the

interface and error names from the configuration.5 c(SRS_Rte_00123)
An Std_ReturnType value can be directly compared (for equality) with the above
pre-defined error identifiers.
[SWS_Rte_07143] d The RTE generator shall generate symbolic name for application
errors with equal <interface> name, <error> name and <error value> only
once. c(SRS_Rte_00165)

5.5.2 Rte_Instance

The Rte_Instance data type defines the handle used to access instance specific
information from the component data structure.
5
No additional capitalization is applied to the names.

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[SWS_Rte_01148] d The underlying data type for an instance handle shall be a pointer
to a Component Data Structure. c(SRS_Rte_00011, SRS_Rte_00051)
The component data structure (see Section 5.4.2) is uniquely defined for a component
type and therefore the data type for the instance handle is automatically unique for
each component type.
The instance handle type is defined in the application header file [SWS_Rte_01007].
To avoid long and complex type names within SW-C code the following requirement
imposes a fixed name on the instance handle data type.
[SWS_Rte_01150] d The name of the instance handle type shall be defined, using
typedef as Rte_[Byps_]Instance. [Byps_] is an optional infix used when com-
ponent wrapper method for bypass support is enabled for the related software compo-
nent type (See chapter 4.9.2). c(SRS_BSW_00305)
[SWS_Rte_06810] d The instance handle typedef shall use the CONSTP2CONST macro
with memclass AUTOMATIC and ptrclass RTE_CONST. c(SRS_BSW_00007)
Requirement [SWS_Rte_06810] uses memclass AUTOMATIC rather than memclass
TYPEDEF because the instance handle is used as a function parameter and hence
automatic. This means the typedef is guaranteed to be compatible when the RTE
implementation must use a pointer to the component data structure rather than the
instance handle typedef.
The example 5.24 illustrates the definition of the instance handle typedef.

5.5.3 Rte_TransformerError

The data type Rte_TransformerError is a struct which contains the error code and
the transformer class to which the error belongs.
[SWS_Rte_08560] d The data type Rte_TransformerError shall be defined as
follows:
1 struct Rte_TransformerError {
2 Rte_TransformerErrorCode errorCode,
3 Rte_TransformerClass transformerClass
4 };

c(SRS_Rte_00249)
The Rte_TransformerErrorCode represents a transformer error in the con-
text of a certain transformer chain. The specific meaning of the values of
Rte_TransformerErrorCode are always to be seen for the specific transformer
chain for which the data type represents the transformer error.
The values are specified for each transformer class in [26, ASWS Transformer Gen-
eral].

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[SWS_Rte_08545] d The underlying data type of the type

Rte_TransformerErrorCode shall be uint8. c(SRS_Rte_00249)
The Rte_TransformerClass represents the transformer class in which the error
occurred.
[SWS_Rte_08543] d The underlying data type of the type Rte_TransformerClass
shall be uint8. c(SRS_Rte_00249)
[SWS_Rte_08544] d The type Rte_TransformerClass shall be an enumeration
with the following elements where each element represents a transformer class:
RTE_TRANSFORMER_UNSPECIFIED (0x00) Transformer of a unspecified trans-
former class.
RTE_TRANSFORMER_SERIALIZER (0x01) Transformer of a serializer class.
RTE_TRANSFORMER_SAFETY (0x02) Transformer of a safety class.
RTE_TRANSFORMER_SECURITY (0x03) Transformer of a security class.
RTE_TRANSFORMER_CUSTOM (0xff) Transformer of a custom class not stan-
dardized by AUTOSAR.
c(SRS_Rte_00249)
[SWS_Rte_08561] d The transformer class RTE_TRANSFORMER_UNSPECIFIED shall
be used if no transformer error occured. c(SRS_Rte_00249)
[SWS_Rte_08575] d The mapping from transformerClass of Transformation-
Technology to value of data type Rte_TransformerClass shall be:
transformerClass serializer RTE_TRANSFORMER_SERIALIZER
transformerClass safety RTE_TRANSFORMER_SAFETY
transformerClass security RTE_TRANSFORMER_SECURITY
transformerClass custom RTE_TRANSFORMER_CUSTOM
c(SRS_Rte_00249)

5.5.4 RTE Modes

[SWS_Rte_02659] d For each ModeDeclarationGroup of category

"ALPHABETIC_ORDER", used in the SW-Cs ports, the Application Types Header
File shall contain a definition
1 #ifndef RTE_TRANSITION_<prefix><ModeDeclarationGroup>
2 #define RTE_TRANSITION_<prefix><ModeDeclarationGroup> <n>U
3 #endif

where <ModeDeclarationGroup> is the shortName of the ModeDeclaration-

Group,

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<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-

tionGroupSet referring the ModeDeclarationGroup and
<n> is the number of modes declared within the group.6 c(SRS_Rte_00144)
[SWS_Rte_03858] d For each ModeDeclarationGroup of category
"EXPLICIT_ORDER", used in the SW-Cs ports, the Application Types Header
File shall contain a definition
1 #ifndef RTE_TRANSITION_<prefix><ModeDeclarationGroup>
2 #define RTE_TRANSITION_<prefix><ModeDeclarationGroup> \
3 <onTransitionValue>U
4 #endif

where <ModeDeclarationGroup> is the shortName of the ModeDeclaration-

Group,
<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-
tionGroupSet referring the ModeDeclarationGroup and
<onTransitionValue> is the onTransitionValue of the ModeDeclarationGroup.
c(SRS_Rte_00144)
[SWS_Rte_07640] d The RTE Generator shall reject configurations where two Mode-
DeclarationGroups, used in the SW-Cs ports, with the same name but different
ModeDeclarations exists. c(SRS_Rte_00144, SRS_Rte_00018)
The rational for [SWS_Rte_07640] is to protect against conditions which would lead to
[SWS_Rte_02659] to generate conflicting types or macro definitions.
[SWS_Rte_02568] d For each mode of a ModeDeclarationGroup of category
"ALPHABETIC_ORDER", used in the SW-Cs ports, the Application Types Header File
shall contain a definition
1 #ifndef RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration>
2 #define RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration> \
3 <index>U
4 #endif

where <ModeDeclarationGroup> is the short name of the ModeDeclaration-

Group,
<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-
tionGroupSet referring the ModeDeclarationGroup
<ModeDeclaration> is the shortName of a ModeDeclaration, and <index> is
the index of the ModeDeclarations in alphabetic ordering (ASCII / ISO 8859-1 code
in ascending order) of the shortNames within the ModeDeclarationGroup7 .
The lowest index shall be 0 and therefore the range of assigned values is 0..<n-1>
where <n> is the number of modes declared within the group. c(SRS_Rte_00144)
6
No additional capitalization is applied to the names.
7
No additional capitalization is applied to the names.

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[SWS_Rte_03859] d For each mode of a ModeDeclarationGroup of category

"EXPLICIT_ORDER", used in the SW-Cs ports, the Application Types Header File shall
contain a definition
1 #ifndef RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration>
2 #define RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration> \
3 <value>U
4 #endif

where <ModeDeclarationGroup> is the short name of the ModeDeclaration-

Group,
<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-
tionGroupSet referring the ModeDeclarationGroup
<ModeDeclaration> is the shortName of a ModeDeclaration, and <value> is
the value specified at the ModeDeclaration. c(SRS_Rte_00144)

5.5.5 Enumeration Data Types

Enumeration is not a plain primitive ImplementationDataType. Rather a range of

integers can be used as a structural description. The mapping of integers on "labels"
in the enumeration is actually modeled in the SwC-T with the semantics class Com-
puMethod of a SwDataDefProps [2]. Enumeration data types are modeled as Im-
plementationDataTypes having a SwDataDefProps referencing a CompuMethod
that contains only CompuScales with point ranges (i. e. lower and upper limit of a Com-
puScale are identical).
[SWS_Rte_03809] d The Application Types Header File shall include the definitions
of all constants of ImplementationDataTypes and ApplicationDataTypes for
each ImplementationDataType/ApplicationDataTypes used (referenced) by
this software component.
This includes constants for CompuMethods referenced by Implementation-
DataTypeElements of ImplementationDataTypes directly referenced by the soft-
ware component and constants for CompuMethods of ImplementationDataTypes
which are referenced indirectly via ImplementationDataTypes / Implementa-
tionDataTypeElements of category TYPE_REFERENCE. c(SRS_Rte_00167)
[SWS_Rte_03809] is applicable regardless if the AutosarDataType is referenced
by an DataPrototypes in PortInterfaces used for SwComponentTypes Ports,
DataPrototypes defined in the InternalBehavior of the SwComponentType or
AutosarDataTypes which are only referenced by the IncludedDataTypeSet.
This requirement ensures the availability of AutosarDataType constants for the in-
ternal use in AUTOSAR software components, for example enumeration constants.
The name of those constants bases on the CompuScale symbolic name as de-
fined in [TPS_SWCT_01569].

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[SWS_Rte_03810] d For each CompuScale which has a point range and is

located in the compuInternalToPhys container of a CompuMethod referenced
by an ImplementationDataType or ApplicationPrimitiveDataType according
[SWS_Rte_03809] with category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE, the Application
Types Header File file shall contain a definition
1 #ifndef <prefix><EnumLiteral>
2 #define <prefix><EnumLiteral> <value><suffix>
3 #endif /* <prefix><EnumLiteral> */

where the name of the enumeration literal <EnumLiteral> is derived according to the
following rule:
if (attribute symbol of CompuScale is available and not empty) {
<EnumLiteral> := C identifier specified in symbol attribute of CompuScale
} else {
if (string specified in the VT element of the CompuConst of the CompuScale
is a valid C identifier) {
<EnumLiteral> :=
string specified in the VT element of the CompuConst of the CompuScale
} else {
if (attribute shortLabel of CompuScale is available and not empty) {
<EnumLiteral> :=
string specified in shortLabel attribute of CompuScale
}
}
}
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType using the CompuMethod.
<value> is the value representing the CompuScales point range.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00167)
Please note that the IncludedDataTypeSet.literalPrefix applies only to the
AutosarDataType(s) explicitly referenced by the IncludedDataTypeSet and
does not automatically propagate to other AutosarDataType(s) associated via
DataTypeMaps. Both ApplicationDataType and mapped Implementation-
DataType must be explicitly referenced if all associated labels are to have the prefix.
[SWS_Rte_03810] implies that the RTE does add prefix to the names of the enumer-
ation constants on explicit demand only. This is necessary in order to handle enu-
meration constants supplied by Basic Software modules which all use their own prefix
convention. Such Enumeration constant names have to be unique in the whole AU-
TOSAR system.
[SWS_Rte_08401] d In the case that the same ImplementationDataType
or ApplicationPrimitiveDataType is referenced via different Included-
DataTypeSets with different literalPrefix attributes, the definition according to

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[SWS_Rte_03810] has to be provided once for each different literalPrefix. c

(SRS_Rte_00167)
[SWS_Rte_03851] d If the input of the RTE generator contains a Com-
puMethod with category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE that contains a
CompuScale with a point range, and
neither the attribute symbol of the CompuScale is available and not empty,
nor the string specified in the VT element of the CompuConst of the CompuScale
is a valid C identifier,
nor the attribute shortLabel of CompuScale is available and not empty,
the RTE generator shall reject this input as an invalid configuration. c(SRS_Rte_00018)
[SWS_Rte_03813] d The RTE shall reject configurations where the
same software component type uses ImplementationDataTypes and
ApplicationPrimitiveDataTypes referencing two or more Com-
puMethods with category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE that both contain
a CompuScale with a different point range and an identical CompuScale symbolic
names as an invalid configuration. The only exception is that the usage of the Imple-
mentationDataTypes and ApplicationPrimitiveDataTypes are defined with
non identical <literalPrefix>es. c(SRS_Rte_00018)
[SWS_Rte_07175] d The RTE generator shall reject configurations violating the [con-
str_1133]. c(SRS_Rte_00018)
This rejects configurations where an ImplementationDataType or
an ApplicationPrimitiveDataType references a CompuMethod
which is of category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE and has
CompuScales with identical CompuScale symbolic names but different Com-
puScale.lowerLimit or CompuScale.upperLimit.
Note that there might exist additional CompuScales with non-point ranges inside
a CompuMethod of category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE , but for those no
enumeration literals are generated by the RTE generator.
The RTE generator does not support the use of C enums for DataPrototypes used
in application software.
[SWS_Rte_03862] d The RTE generator shall reject configurations violating the [con-
str_1244], so where a DataPrototype that is used in an AtomicSwComponentType
has set the swDataDefProps.additionalNativeTypeQualifier attribute set to
enum. c(SRS_Rte_00018)

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5.5.6 Range Data Types

For the ApplicationPrimitiveDataType a Range might be specified by referenc-

ing a data constraint (dataConstr) giving the lowerLimit and the upperLimit. To
allow a Software Component the access to these values two definitions for these values
shall be generated.
[SWS_Rte_05051] d The Application Types Header File shall include the definitions
of all lowerLimit and upperLimit constants of each ApplicationPrimitive-
DataType used by this software component once per ApplicationPrimitive-
DataType if the ApplicationPrimitiveDataType is not referenced via different
IncludedDataTypeSets. c(SRS_Rte_00167)
[SWS_Rte_08402] d The Application Types Header File shall include the definitions
of all lowerLimit and upperLimit constants of each ApplicationPrimitive-
DataType used by this software component for each combination of different lit-
eralPrefix and ApplicationPrimitiveDataType when the same Implemen-
tationDataType or ApplicationPrimitiveDataType is referenced via different
IncludedDataTypeSets. c(SRS_Rte_00167)
[SWS_Rte_05052] d The lowerLimit and upperLimit constants for Application-
PrimitiveDataType referencing a DataConstr shall be generated by RTE generator in
the Application Type Header File as:
1 #define <prefix><DataType>_LowerLimit <lowerValue><suffix>
2 #define <prefix><DataType>_UpperLimit <upperValue><suffix>

where <DataType> is the name of the ApplicationPrimitiveDataType used by

the software component.
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType to which the DataConstr belongs.
<lowerValue> and <upperValue> are the values lowerLimit and upperLimit
of the dataConstr referenced by the ApplicationPrimitiveDataType onto which the
corresponding CompuMethod has been applied (see [SWS_Rte_07038]). The values
in the macro definitions shall always reflect the closed interval, regardless of the interval
type specified by the dataConstr.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00167)
Please note that [SWS_Rte_07196] is not applicable for [SWS_Rte_05052]. Further
on its possible that a DataPrototype using an ApplicationPrimitiveDataType might
reference additional dataConstr (see [SWS_Rte_07196]). In this case the upper-
Limit and lowerLimit definitions according [SWS_Rte_05052] do not reflect the
real applicable range of the DataPrototype. No macros are generated for Dat-
aPrototype specific data constraints.

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Please note that the prefix can either be defined that the IncludedDataType-
Set with a literalPrefix attribute references the ApplicationDataType or it
references the ImplementationDataType.
Rationale: ApplicationPrimitiveDataType is taken as the basis for the gener-
ation of limits (as opposed to take the corresponding ImplementationDataType)
because the limits defined on the ImplementationDataType) may be wider than
the limits of the ApplicationPrimitiveDataType ((see subsection "Data Types
for Single Values" in the AUTOSAR SW-C Template [2]).
[SWS_Rte_08403] d For AUTOSAR data types which have an invalidValue speci-
fied, the Application Types header file shall contain the definition
1 #define InvalidValue_<prefix><DataType> <invalidValue><suffix>

where
<prefix> is the optional literalPrefix attribute defined by the Included-DataTypeSet
referring the AutosarDataType
<DataType> is the short name of the data type.
<invalidValue> is the value defined as invalidValue for the data type.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c()
[SWS_Rte_08416] d The Application Types Header File shall include the definitions of
all invalidValue constants used by this software component for each combination of
different literalPrefix and ApplicationPrimitiveDataType when the same
ImplementationDataType or ApplicationPrimitiveDataType is referenced
via different IncludedDataTypeSets. c(SRS_Rte_00167)

5.5.7 Data Types with bitfield conversions

AutosarDataTypes associated with a CompuMethod of category

BITFIELD_TEXTTABLE support the concatenation of a value set inside a single
scalar variable. Thereby single bits may get a individual (boolean) meaning or a set of
bits is used carry an enumeration. Please note that those data types are not mapped
to C bit fields rather than to scalars (e.g. uint8). Thereby the RTE Generator provides
a set of definitions for the "Bit Mask", "Bit Start Position" and the "Number of Bits"
in order to support the usage of the AUTOSAR Bit Handling Routines [32] for those
kind of data types. For some operations on a set of bits (the set may contain only 1
bit) the AUTOSAR bitfield library requires a single contiguous bit field which means
that all bits set to 1 in the in the CompuScale.mask attribute value are adjoining, e.g.
0b00010000 or 0b00111100.
[SWS_Rte_07410] d For each unique CompuScale.shortLabel / CompuS-
cale.mask value pair for a CompuScale which is located in the compuInternal-
ToPhys container of a CompuMethod referenced by an ImplementationDataType
or ApplicationPrimitiveDataType according [SWS_Rte_03809] with category

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BITFIELD_TEXTTABLE the Application Types Header File shall contain a definition

for the bit field mask
1 #ifndef <prefix><BflMaskLabel>_BflMask
2 #define <prefix><BflMaskLabel>_BflMask <mask><suffix>
3 #endif /* <prefix><BflMaskLabel>_BflMask */

where
<BflMaskLabel> is the value of the attribute CompuScale.shortLabel
<mask> is the value of the attribute mask
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType using the CompuMethod.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00167)
[SWS_Rte_07411] d For each unique CompuScale.shortLabel / CompuS-
cale.mask value pair for a CompuScale with a single contiguous bit field which
is located in the compuInternalToPhys container of a CompuMethod referenced
by an ImplementationDataType or ApplicationPrimitiveDataType accord-
ing [SWS_Rte_03809] with category BITFIELD_TEXTTABLE the Application Types
Header File shall contain a definition for the bit start position
1 #ifndef <prefix><BflStartPnLabel>_BflPn
2 #define <prefix><BflStartPnLabel>_BflPn <BflStartPnNumber><suffix>
3 #endif /* <prefix><BflStartPnLabel>_BflPn */

where
<BitStartPnLabel> is the value of the attribute CompuScale.shortLabel
<BflStartPnNumber> is the number of the first bit in the attribute value CompuS-
cale.mask which is set to 1. Thereby the bit counting starts from 0 (LSB) to n (MSB).
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType using the CompuMethod.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00167)
[SWS_Rte_07412] d For each unique CompuScale.shortLabel / CompuS-
cale.mask value pair for a CompuScale with a single contiguous bit field which
is located in the compuInternalToPhys container of a CompuMethod referenced
by an ImplementationDataType or ApplicationPrimitiveDataType accord-
ing [SWS_Rte_03809] with category BITFIELD_TEXTTABLE the Application Types
Header File shall contain a definition for the bit field length
1 #ifndef <prefix><BflLengthLabel>_BflLn
2 #define <prefix><BflLengthLabel>_BflLn <BflLength><suffix>
3 #endif /* <prefix><BflLengthLabel>_BflLn */

where
<BflLengthLabel> is the value of the attribute shortLabel <BflLength> is the
number of contiguous bits set to 1 in the attribute value CompuScale.mask. <prefix>
is the optional literalPrefix attribute defined by the IncludedDataTypeSet re-
ferring the AutosarDataType using the CompuMethod.

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<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00167)
Please note the example in section F.3.
[SWS_Rte_07414] d The requirements [SWS_Rte_07410], [SWS_Rte_07411], and
[SWS_Rte_07412] are only applied to CompuScales where the attribute shortLabel
is defined. c(SRS_Rte_00167)

5.6 API Reference

The functions described in this section are organized by the RTE API mapping name
used by C and C++ AUTOSAR software-components to access the API. The API map-
ping hides from the AUTOSAR software-component programmer any need to be aware
of the steps taken by the RTE generator to ensure that the generated API functions
have unique names.
The instance handle as the first parameter of the API calls is marked as an optional
parameter in this section. If an AUTOSAR software-component supports multiple in-
stantiation, the instance handle shall be passed [SWS_Rte_01013].
Note that [SWS_Rte_03806] requires that the instance handle parameter does not
exist if the AUTOSAR software-component does not support multiple instantiation.

5.6.1 Rte_Ports

Purpose: Provide an array of the ports of a given interface type and a given
provide / require usage that can be accessed by the indirect API.
Signature: [SWS_Rte_02619] d
Rte_PortHandle_<i>_<R/P/PR>
Rte_[Byps_]Ports_<i>_<R/P/PR>([IN Rte_Instance <instance>])

Where here <i> is the port interface name and P,R or PR are lit-
erals to indicate provide, require or provide-require ports respectively.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_Rte_00051)
Existence: [SWS_Rte_02613] d An Rte_Ports API shall be created for each
interface type and usage by a port in at least one PreCompileTime
variant when the indirectAPI attribute of that port is set to true. c
(SRS_Rte_00051)
Please note that the usage of the Rte_Ports API is not restricted
to particular runnables of the software component. Nevertheless the

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constraints with respect to RTE API usage by specific runnables are

applicable for the according elements in the port data structure.
Description: The Rte_Ports API provides access to an array of ports for the port
oriented API.
[SWS_Rte_03602] d Rte_Ports API shall return an array of ports
which contains only those ports for which the indirect API was gen-
erated or it shall return a NULL_PTR if the port data structure for this
port interface does not exist. c(SRS_Rte_00051)
Return Value: Array of port data structures of the corresponding interface type and
usage.
Notes: The existence condition for the port data structure is specified in
[SWS_Rte_03799].

5.6.2 Rte_NPorts

Purpose: Provide the number of ports of a given interface type and provide /
require usage that can be accessed through the indirect API.
Signature: [SWS_Rte_02614] d
uint8
Rte_[Byps_]NPorts_<i>_<R/P/PR>([IN Rte_Instance <instance>])

Where here <i> is the port interface name and P, R or PR are

literals to indicate provide, require or provide-require ports respec-
tively. [Byps_] is an optional infix used when component wrapper
method for bypass support is enabled for the related software com-
ponent type (See chapter 4.9.2). c(SRS_Rte_00051)
Existence: [SWS_Rte_02615] d An Rte_NPorts API shall be created for each
interface type and usage by a port in at least one PreCompileTime
variant when the indirectAPI attribute of the port is set to true. c
(SRS_Rte_00051)
Description: The Rte_NPorts API supports access to an array of ports for the
port oriented API.
[SWS_Rte_03603] d The Rte_NPorts shall return the number of
ports of a given interface and provide / require usage for which the
indirect API was generated or 0 if the port port data structure for this
port interface does not exist. c(SRS_Rte_00051)
Return Value: Number of port data structures of the corresponding interface type
and usage.
Notes: The existance condition for the port data structure is specified in
[SWS_Rte_03799].

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5.6.3 Rte_Port

Purpose: Provide access to the port data structure for a single port of a particu-
lar software component instance. This allows a software component
to extract a sub-group of ports characterized by the same interface in
order to iterate over this sub-group.
Signature: [SWS_Rte_01354] d
Rte_PortHandle_<i>_<R/P/PR>
Rte_[Byps_]Port_<p>([IN Rte_Instance <instance>])

where <i> is the port interface name and <p> is the name of the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_Rte_00051)
Existence: [SWS_Rte_01355] d An Rte_Port API shall be created for each
port of an AUTOSAR SW-C, for which the indirectAPI attribute is
set to true. c(SRS_Rte_00051)
Please note that the usage of the Rte_Port API is not restricted
to particular runnables of the software component. Nevertheless the
constraints with respect to RTE API usage by specific runnables are
applicable for the according elements in the port data structure.
Description: The Rte_Port API provides a pointer to a single port data structure,
in order to support the indirect API.
Return Value: Pointer to port data structure for the appropriate port.
Notes: None.

5.6.4 Rte_Write

Purpose: Initiate an explicit sender-receiver transmission of data elements

with data semantic (swImplPolicy different from queued).
Signature: [SWS_Rte_01071] d
Std_ReturnType
Rte_[Byps_]Write_<p>_<o>([IN Rte_Instance <instance>],
IN <data>,
[OUT Rte_TransformerError transformerError])

Where <p> is the port name and <o> the VariableDataPro-

totype within the sender-receiver interface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00098,
SRS_Rte_00028, SRS_Rte_00131)

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Existence: [SWS_Rte_01280] d The presence of a VariableAccess in

the dataSendPoint role for a provided VariableDataProto-
type with data semantics shall result in the generation of an
Rte_Write API for the provided VariableDataPrototype. c
(SRS_Rte_00051)
[SWS_Rte_CONSTR_09015] Rte_Write API may only be used
by the runnable that describe its usage d The Rte_Write API
may only be used by the runnable that contains the corresponding
VariableAccess in the dataSendPoint role c()
[SWS_Rte_08574] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
Description: The Rte_Write API call initiates a sender-receiver communication
where the transmission occurs at the point the API call is made (cf.
explicit transmission).
The Rte_Write API call includes the IN parameter <data> to pass
the data element to write.
The IN parameter <data> is passed by value or reference accord-
ing to the ImplementationDataType as described in the section
5.2.6.5.
If the IN parameter <data> is passed by reference, the pointer must
remain valid until the API call returns.
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.
The RTE generator shall take into account the kind of connected re-
quire port which might not be just a variable but also a NV data. The
table 4.7 gives an overview of compatibility rules.
Return Value: The return value is used to indicate errors detected by the RTE during
execution of the Rte_Write.
[SWS_Rte_07820] d RTE_E_OK data passed to communica-
tion service successfully. c(SRS_Rte_00094)
[SWS_Rte_07822] d RTE_E_COM_STOPPED the RTE could
not perform the operation because the COM service is currently
not available (inter ECU communication only). RTE shall return
RTE_E_COM_STOPPED when the corresponding COM service
returns COM_SERVICE_NOT_AVAILABLE. c(SRS_Rte_00094)

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[SWS_Rte_02756] d RTE_E_SEG_FAULT a segmentation vio-

lation is detected in the handed over parameters to the RTE API
as required in [SWS_Rte_02752] and [SWS_Rte_02753]. No
transmission is executed. c(SRS_Rte_00210)
[SWS_Rte_01390] d RTE_E_COM_BUSY The transmission is
rejected due to a currently ongoing transmission. The transmis-
sion is not executed. c(SRS_Rte_00246)
Note: API call can be retried after the currently ongoing request
has finished.
[SWS_Rte_08546] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08557] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
Notes: The Rte_Write call is used to transmit data (swImplPolicy not
queued).
[SWS_Rte_07824] d In case of inter ECU communication, the
Rte_Write shall cause an immediate transmission request. c
(SRS_Rte_00028, SRS_Rte_00131)
Note that depending on the configuration a transmission request may
not result in an actual transmission, for example transmission may be
rate limited (time-based filtering) and thus dependent on other factors
than API calls.
[SWS_Rte_07826] d In case of inter ECU communication, the
Rte_Write API shall return when the signal has been passed to
the communication service for transmission. c(SRS_Rte_00028,
SRS_Rte_00131)
Depending on the communication server the transmission may or
may not have been acknowledged by the receiver at the point the
API call returns.
[SWS_Rte_02635] d In case of intra ECU communication, the
Rte_Write API call shall return after copying the data to RTE local
memory or using IOC buffers. c(SRS_Rte_00028, SRS_Rte_00131)
[SWS_Rte_01080] d If the transmission acknowledgement is en-
abled, the RTE shall notify component when the transmission is ac-
knowledged or a transmission error occurs. c(SRS_Rte_00122)

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[SWS_Rte_01082] d If a provide port typed by a sender-receiver in-

terface has multiple require ports connected (i.e. it has multiple re-
ceivers), then the RTE shall ensure that writes to all receivers are
independent. c(SRS_Rte_00028)
Requirement [SWS_Rte_01082] ensures that an error detected by
the RTE when writing to one receiver, e.g. communication is stopped,
does not prevent the transmission of this message to other compo-
nents.
[SWS_Rte_08413] d If a provide port typed by a sender-receiver in-
terface has multiple require ports connected (i.e. it has multiple re-
ceivers), then the RTE shall return RTE_E_OK only if no error at all
occurred. c(SRS_Rte_00028)
[SWS_Rte_08414] d In case of multiple faults during a call of
Rte_Write the resulting return value shall be derived according to
the following priority rules (highest priority first):
1. RTE_E_SEG_FAULT
2. RTE_E_HARD_TRANSFORMER_ERROR
3. RTE_E_COM_STOPPED
4. RTE_E_SOFT_TRANSFORMER_ERROR
c(SRS_Rte_00028)

5.6.5 Rte_Send

Purpose: Initiate an explicit sender-receiver transmission of data elements

with event semantic (swImplPolicy equal to queued).
Signature: [SWS_Rte_01072] d
Std_ReturnType
Rte_[Byps_]Send_<p>_<o>([IN Rte_Instance <instance>],
IN <data>,
[OUT Rte_TransformerError transformerError])

Where <p> is the port name and <o> the VariableDataPro-

totype within the sender-receiver interface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00141,
SRS_Rte_00028, SRS_Rte_00131)
Existence: [SWS_Rte_01281] d The presence of a VariableAccess in
the dataSendPoint role for a provided VariableDataProto-
type with event semantics shall result in the generation of an

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Rte_Send API for the provided VariableDataPrototype. c

(SRS_Rte_00051)
[SWS_Rte_CONSTR_09016] Rte_Send API may only be used by
the runnable that describes its usage d The Rte_Send API may
only be used by the runnable that contains the corresponding Vari-
ableAccess in the dataSendPoint role c()
[SWS_Rte_08562] d The optional OUT parameter
transformerError of the API shall be generated if the Port-
Prototype of port <p> is referenced by a PortAPIOption which
has the attribute errorHandling set to transformerErrorHan-
dling. c(SRS_Rte_00249)
Description: The Rte_Send API call initiates a sender-receiver communication
where the transmission occurs at the point the API call is made (cf.
explicit transmission).
The Rte_Send API call includes the IN parameter <data> to pass
the data element to send.
The IN parameter <data> is passed by value or reference accord-
ing to the ImplementationDataType as described in the section
5.2.6.5.
If the IN parameter <data> is passed by reference, the pointer must
remain valid until the API call returns.
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.
The RTE generator has to take into account the kind of connected
require port which might not be just a variable but also a NV data.
The table 4.7 gives an overview of compatibility rules.
Return Value: The return value is used to indicate errors detected by the RTE during
execution of the Rte_Send.
[SWS_Rte_07821] d RTE_E_OK data passed to communica-
tion service successfully. c(SRS_Rte_00094)
[SWS_Rte_07823] d RTE_E_COM_STOPPED the RTE could
not perform the operation because the COM service is currently
not available (inter ECU communication only). RTE shall return
RTE_E_COM_STOPPED when the corresponding COM service
returns COM_SERVICE_NOT_AVAILABLE. c(SRS_Rte_00094)
[SWS_Rte_02634] d RTE_E_LIMIT an event has been dis-
carded due to a full queue by one of the ECU local receivers
(intra ECU communication only). c(SRS_Rte_00143)

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[SWS_Rte_02754] d RTE_E_SEG_FAULT a segmentation vio-

lation is detected in the handed over parameters to the RTE API
as required in [SWS_Rte_02752] and [SWS_Rte_02753]. No
transmission is executed. c(SRS_Rte_00210)
[SWS_Rte_08547] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08553] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
Notes: The Rte_Send call is used to transmit events (swImplPolicy =
queued).
[SWS_Rte_07825] d In case of inter ECU communication, the
Rte_Send shall cause an immediate transmission request. c
(SRS_Rte_00028, SRS_Rte_00131)
Note that depending on the configuration a transmission request may
not result in an actual transmission, for example transmission may be
rate limited (time-based filtering) and thus dependent on other factors
than API calls.
[SWS_Rte_07827] d In case of inter ECU communication, the
Rte_Send API shall return when the signal has been passed to
the communication service for transmission. c(SRS_Rte_00028,
SRS_Rte_00131)
Depending on the communication server the transmission may or
may not have been acknowledged by the receiver at the point the
API call returns.
[SWS_Rte_02633] d In case of intra ECU communication, the
Rte_Send API call shall return after attempting to enqueue the
data in the IOC or RTE internal queues. c(SRS_Rte_00028,
SRS_Rte_00131)
If the transmission acknowledgement is enabled, the RTE has to no-
tify component when the transmission is acknowledged or a trans-
mission error occurs. [SWS_Rte_01080]
If a provide port typed by a sender-receiver interface has multi-
ple require ports connected (i.e. it has multiple receivers), then
the RTE shall ensure that writes to all receivers are independent.
[SWS_Rte_01082]

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Requirement [SWS_Rte_01082] ensures that an error detected by

the RTE when writing to one receiver, e.g. an overflow in one compo-
nents queue, does not prevent the transmission of this message to
other components.
If a provide port typed by a sender-receiver interface has multi-
ple require ports connected (i.e. it has multiple receivers), then
the RTE shall return RTE_E_OK only if no error at all occurred.
[SWS_Rte_08413]
[SWS_Rte_08415] d In case of multiple faults during a call of
Rte_Send the resulting return value shall be derived according to
the following priority rules (highest priority first):
1. RTE_E_SEG_FAULT
2. RTE_E_LIMIT (only in case of Intra-ECU communication)
3. RTE_E_HARD_TRANSFORMER_ERROR
4. RTE_E_COM_STOPPED
5. RTE_E_SOFT_TRANSFORMER_ERROR
c(SRS_Rte_00028)

5.6.6 Rte_Switch

Purpose: Initiate a mode switch. The Rte_Switch API call is used for explicit
sending of a mode switch notification.
Signature: [SWS_Rte_02631] d
Std_ReturnType
Rte_[Byps_]Switch_<p>_<o>([IN Rte_Instance <instance>],
IN <mode>)

Where <p> is the port name and <o> the ModeDeclarationGroup-

Prototype within the ModeSwitchInterface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00143,
SRS_Rte_00028, SRS_Rte_00131)
Existence: [SWS_Rte_02632] d The existence of a ModeSwitchPoint shall result
in the generation of a Rte_Switch API. c(SRS_Rte_00051)
[SWS_Rte_CONSTR_09017] Rte_Switch API may only be used
by the runnable that describes its usage d The Rte_Switch API
may only be used by the runnable that contains the corresponding
ModeSwitchPoint c()

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Description: The Rte_Switch triggers a mode switch for all connected require
ModeDeclarationGroupPrototypes.
The Rte_Switch API call includes exactly one IN parameter for the
next mode <mode>. The IN parameter <mode> is passed by value
according to the ImplementationDataType on which the Mode-
DeclarationGroup is mapped. The type name shall be equal to the
shortName of the ImplementationDataType.
Return Value: The return value is used to indicate errors detected by the RTE during
execution of the Rte_Switch call.
[SWS_Rte_02674] d RTE_E_OK data passed to service suc-
cessfully. c(SRS_Rte_00094)
[SWS_Rte_02675] d RTE_E_LIMIT a mode switch has been
discarded by the receiving partition due to a full queue. c
(SRS_Rte_00143)
Notes: Rte_Switch is restricted to ECU local communication.
If a mode instance is currently involved in a transition then
the Rte_Switch API will attempt to queue the request and re-
turn [SWS_Rte_02667]. However if no transition is in progress
for the mode instance, the mode disablings and the activations
of on-entry, on-transition, and on-exit ExecutableEntities for this
mode instance are executed before the Rte_Switch API returns
[SWS_Rte_02665].
Note that the mode switch might be discarded when the queue is full
and a mode transition is in progress, see [SWS_Rte_02675].

5.6.7 Rte_Invalidate

Purpose: Invalidate a data element for an explicit sender-receiver transmis-

sion.
Signature: [SWS_Rte_01206] d
Std_ReturnType
Rte_[Byps_]Invalidate_<p>_<o>(
[IN Rte_Instance <instance>],
[OUT Rte_TransformerError transformerError])

Where <p> is the port name and <o> the VariableDataPro-

totype within the sender-receiver interface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00078)

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Existence: [SWS_Rte_01282] d An Rte_Invalidate API shall be created for

any VariableAccess in the dataSendPoint role that references
a provided VariableDataPrototype which associated Invali-
dationPolicy is set to keep, replace or externalReplace-
ment. c(SRS_Rte_00051, SRS_Rte_00078)
[SWS_Rte_CONSTR_09018] Rte_Invalidate API may only
be used by the runnable that describe its usage d The
Rte_Invalidate API may only be used by the runnable that con-
tains the corresponding VariableAccess in the dataSendPoint
role c()
[SWS_Rte_08582] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
Description: The Rte_Invalidate API takes the instance handle as input pa-
rameter. The return value is used to indicate the success, or other-
wise, of the API call to the caller.
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.
Return Value: The return value is used to indicate the OK status or errors detected
by the RTE during execution of the Rte_Invalidate call.
[SWS_Rte_01207] d RTE_E_OK No error occurred. c
(SRS_Rte_00094)
[SWS_Rte_01339] d RTE_E_COM_STOPPED the RTE could
not perform the operation because the COM service is currently
not available (inter ECU communication only). RTE shall return
RTE_E_COM_STOPPED when the corresponding COM service
returns COM_SERVICE_NOT_AVAILABLE. c(SRS_Rte_00094)
[SWS_Rte_08576] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08577] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
[SWS_Rte_08583] d In case of multiple faults during a call of
Rte_Invalidate the resulting return value shall be derived ac-
cording to the following priority rules (highest priority first): (1)

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RTE_E_HARD_TRANSFORMER_ERROR, (2) RTE_E_COM_STOPPED,

(3) RTE_E_SOFT_TRANSFORMER_ERROR. c(SRS_Rte_00122)
Notes: The API name includes an identifier <p>_<o> that is formed from the
port and operation item names. See Section 5.2.6.4 for details on the
naming convention.
The communication service configuration determines whether the
signal receiver(s) receive an invalid signal notification or whether
the invalidated signal is silently replaced by the signals initial value.

5.6.8 Rte_Feedback

Purpose: Provide access to acknowledgement notifications for explicit sender-

receiver communication and to pass error notification to senders.
Signature: [SWS_Rte_01083] d
Std_ReturnType
Rte_[Byps_]Feedback_<p>_<o>(
[IN Rte_Instance <instance>])

Where <p> is the port name and <o> the VariableDataPro-

totype within the sender-receiver interface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00122)
Existence: [SWS_Rte_01283] d Acknowledgement is enabled for a provided
VariableDataPrototype by the existence of a Transmis-
sionAcknowledgementRequest in the SenderComSpec. c
(SRS_Rte_00051, SRS_Rte_00122)
[SWS_Rte_01284] d A blocking Rte_Feedback API shall be gener-
ated for a provided VariableDataPrototype if acknowledgement
is enabled and a WaitPoint references a DataSendCompletedE-
vent that in turn references the VariableAccess which in turn
references the VariableDataPrototype. c(SRS_Rte_00051,
SRS_Rte_00122)
[SWS_Rte_07850] d A blocking Rte_Feedback API shall block
when a transmission of the related VariableDataPrototype is
ongoing. c(SRS_Rte_00051, SRS_Rte_00122)
[SWS_Rte_07851] d A blocking Rte_Feedback API shall return:
if the sender port is not connected or
if the calling runnable runs in an exclusive area or

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if no transmission of the related VariableDataPrototype is

ongoing or
when the wait point timeout occurs or
when the related DataSendCompletedEvent is triggered.
c(SRS_Rte_00051, SRS_Rte_00122)
[SWS_Rte_01285] d A non-blocking Rte_Feedback API shall be
generated for a provided VariableDataPrototype if acknow-
ledgement is enabled and a VariableAccess in the dataSend-
Point role references the VariableDataPrototype but no
WaitPoint references the DataSendCompletedEvent that ref-
erences the VariableAccess which in turn references the Vari-
ableDataPrototype. c(SRS_Rte_00051, SRS_Rte_00122)
Please note that a non-blocking Rte_Feedback API does not
require the existence of a DataSendCompletedEvent. If the
DataSendCompletedEvent exists it can be used to trigger
the execution of a RunnableEntity in which the non-blocking
Rte_Feedback API function may be called.
[SWS_Rte_01286] d If acknowledgement is enabled for a provided
VariableDataPrototype and a DataSendCompletedEvent refer-
ences a runnable entity as well as the VariableAccess which in
turn references the VariableDataPrototype, the runnable entity
shall be activated when the transmission acknowledgement occurs
or when a timeout was detected by the RTE. [SWS_Rte_01137]. c
(SRS_Rte_00051, SRS_Rte_00122)
Requirement [SWS_Rte_01286] merely affects when the runnable is
activated an API call should still be created, according to require-
ment [SWS_Rte_01285] to actually read the data.
[SWS_Rte_01287] d A DataSendCompletedEvent that references
a RunnableEntity and is referenced by a WaitPoint shall be
an invalid configuration which is rejected by the RTE generator. c
(SRS_Rte_00051, SRS_Rte_00122, SRS_Rte_00018)
[SWS_Rte_CONSTR_09019] Rte_Feedback API may only be
used by the runnable that describe its usage d A blocking
Rte_Feedback API may only be used by the runnable that contains
the corresponding WaitPoint c()
[SWS_Rte_07634] d A call to Rte_Feedback shall not change the
status returned by Rte_Feedback. c(SRS_Rte_00122)
The Rte_Feedback API return value is only changed when a new
transmission is requested (Rte_Send or Rte_Write) or when the
notification from COM is received.

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[SWS_Rte_07635] d After a Rte_Send or Rte_Write transmission

request, only the first notification from COM shall be taken into ac-
count for a given Signal or SignalGroup. c(SRS_Rte_00122)
[SWS_Rte_07635] is needed in case of cyclic transmission which
could result in multiple transmissions with different status.
Description: The Rte_Feedback API takes no parameters other than the in-
stance handle the return value is used to indicate the acknowledge-
ment status to the caller.
The Rte_Feedback API applies only to explicit sender-receiver
communication.
Return Value: The return value is used to indicate the status of the transmission and
errors detected by the RTE.
[SWS_Rte_01084] d RTE_E_NO_DATA No acknowledgments
or error notifications were received from COM when the
Rte_Feedback API was called (non-blocking call) or when the
WaitPoint timeout expired (blocking call). c(SRS_Rte_00094,
SRS_Rte_00122)
RTE_E_COM_STOPPED returned in one of these cases:
[SWS_Rte_07636] d (Inter-ECU communication
only) The last transmission was rejected (when the
Rte_Send or Rte_Write API was called), with an
RTE_E_COM_STOPPED return code. c(SRS_Rte_00094,
SRS_Rte_00122)
[SWS_Rte_03774] d (Inter-ECU communication only) An
error notification from COM was received before any timeout
notification. c(SRS_Rte_00094, SRS_Rte_00122)
[SWS_Rte_07637] d RTE_E_TIMEOUT (Inter-ECU and Inter-
Partition only) A timeout notification was received from COM
or IOC before any error notification. c(SRS_Rte_00094,
SRS_Rte_00122)
[SWS_Rte_01086] d RTE_E_TRANSMIT_ACK In case of
inter-ECU communication, a transmission acknowledgment was
received from COM; or in case of intra-ECU communica-
tion, even if a queue overflow occurred. c(SRS_Rte_00094,
SRS_Rte_00122)
RTE_E_UNCONNECTED Indicates that the sender port is not
connected [SWS_Rte_01344].
[SWS_Rte_02740] d RTE_E_IN_EXCLUSIVE_AREA Used
only for the blocking API. RTE_E_IN_EXCLUSIVE_AREA indi-
cates that the runnable can not enter wait, as one of the Ex-

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ecutableEntitys in the call stack of this task is currently in

an exclusive area, see [SWS_Rte_02739]. - In a properly con-
figured system, this error should not occur. The check can be
disabled according to [SWS_Rte_08318]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_08578] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08579] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
[SWS_Rte_08318] d If RteInExclusiveAreaCheckEn-
abled is set to false the RTE generator shall omit the
check and return of [SWS_Rte_02740]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
The RTE_E_NO_DATA, RTE_E_TRANSMIT_ACK and
RTE_E_UNCONNECTED return values are not considered to be
an error but rather indicates correct operation of the API call.
[SWS_Rte_07652] d The initial return value of the
Rte_Feedback API, before any attempt to write some data shall
be RTE_E_TRANSMIT_ACK. c(SRS_Rte_00094, SRS_Rte_00122,
SRS_Rte_00128, SRS_Rte_00185)
[SWS_Rte_08075] d In case of multiple faults during a call of
Rte_Feedback the resulting return value shall be derived ac-
cording to the following priority rules (highest priority first): (1)
RTE_E_UNCONNECTED, (2) RTE_E_IN_EXCLUSIVE_AREA, (3)
RTE_E_TIMEOUT, (4) RTE_E_HARD_TRANSFORMER_ERROR,
(5) RTE_E_COM_STOPPED, (6) RTE_E_NO_DATA, (7)
RTE_E_SOFT_TRANSFORMER_ERROR, (8) RTE_E_TRANSMIT_ACK.
c(SRS_Rte_00122)
Notes: If multiple transmissions on the same port/element are outstanding
it is not possible to determine which is acknowledged first. If this is
important, transmissions should be call serialized with the next oc-
curring only when the previous transmission has been acknowledged
or has timed out.
A transmission acknowledgment (or error and timeout) notification is
not always provided by COM (the bus or PDU Router may not sup-
port transmission acknowledgment for this PDU, or COM may not be
configured to perform transmission deadline monitoring).

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In case of a blocking Rte_Feedback the value of the WaitPoint

timeout depends on the timeout defined at the COM level.

5.6.9 Rte_SwitchAck

Purpose: Provide access to mode switch completed acknowledgements and

error notifications to mode managers.
Signature: [SWS_Rte_02725] d
Std_ReturnType
Rte_[Byps_]SwitchAck_<p>_<o>(
[IN Rte_Instance <instance>])

Where <p> is the port name and <o> the ModeDeclara-

tionGroupPrototype within the ModeSwitchInterface cate-
gorizing the port. [Byps_] is an optional infix used when compo-
nent wrapper method for bypass support is enabled for the related
software component type (See chapter 4.9.2). c(SRS_BSW_00310,
SRS_Rte_00122)
Existence: [SWS_Rte_02676] d Acknowledgement is enabled for a provided
ModeDeclarationGroupPrototype by the existence of a Mod-
eSwitchedAckRequest in the ModeSwitchSenderComSpec. c
(SRS_Rte_00051, SRS_Rte_00122)
[SWS_Rte_02677] d A blocking Rte_SwitchAck API shall be gen-
erated for a provided ModeDeclarationGroupPrototype if ack-
nowledgement is enabled and a WaitPoint references a Mod-
eSwitchedAckEvent that in turn references the ModeDeclara-
tionGroupPrototype. c(SRS_Rte_00051, SRS_Rte_00122)
[SWS_Rte_07846] d A blocking Rte_SwitchAck API shall block
when a mode switch in the related mode machine instance is on-
going. c(SRS_Rte_00122, SRS_Rte_00092)
[SWS_Rte_07847] d A blocking Rte_SwitchAck API shall return:
if the mode machine instance behaves as unconnected or
if the calling runnable runs in an exclusive area or
if no mode switch in the related mode machine instance is on-
going or
when the wait point timeout occurs or
when the related ModeSwitchedAckEvent is triggered.
c(SRS_Rte_00122, SRS_Rte_00092, SRS_Rte_00139)

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[SWS_Rte_02678] d A non-blocking Rte_SwitchAck API shall

be generated for a provided ModeDeclarationGroupPrototype
if acknowledgement is enabled but no WaitPoint references
a ModeSwitchedAckEvent that references the ModeDeclara-
tionGroupPrototype.
Please note that a non-blocking API does not require the existence
of a ModeSwitchedAckEvent. If the ModeSwitchedAckEvent
exists it can be used to trigger the execution of a RunnableEn-
tity in which the non-blocking API function may be called. c
(SRS_Rte_00051, SRS_Rte_00122)
[SWS_Rte_CONSTR_09020] The blocking Rte_SwitchAck API
may only be used by the runnable that describes its usage. d
A blocking Rte_SwitchAck API must only be used by the runnable
that contains the corresponding WaitPoint c()
Description: The Rte_SwitchAck API takes no parameters other than the in-
stance handle the return value is used to indicate the acknowledge-
ment status to the caller.
Return Value: The return value is used to indicate the status of a mode switch and
errors detected by the RTE.
[SWS_Rte_02727] d RTE_E_NO_DATA (non-blocking read)
The mode switch is still in progress. c(SRS_Rte_00094,
SRS_Rte_00122)
[SWS_Rte_02728] d RTE_E_TIMEOUT The configured time-
out exceeds before the mode transition was completed. c
(SRS_Rte_00094, SRS_Rte_00210)
[SWS_Rte_03853] d RTE_E_TIMEOUT The partition of the
mode users is stopped or restarting or has been restarted
while the mode switch was requested. c(SRS_Rte_00094,
SRS_Rte_00210)
[SWS_Rte_02729] d RTE_E_TRANSMIT_ACK The mode
switch has been completed (see [SWS_Rte_02587]). c
(SRS_Rte_00094, SRS_Rte_00122)
[SWS_Rte_07659] d RTE_E_UNCONNECTED Indicates that
the mode provider port is not connected. c(SRS_Rte_00094,
SRS_Rte_00122, SRS_Rte_00139)
[SWS_Rte_02741] d RTE_E_IN_EXCLUSIVE_AREA Used
only for the blocking API. RTE_E_IN_EXCLUSIVE_AREA indi-
cates that the runnable can not enter wait, as one of the Ex-
ecutableEntitys in the call stack of this task is currently in
an exclusive area, see [SWS_Rte_02739]. - In a properly con-
figured system, this error should not occur. The check can be

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disabled according to [SWS_Rte_08319]. c(SRS_Rte_00092,

SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_08319] d If RteInExclusiveAreaCheckEn-
abled is set to false the RTE generator shall omit the
check and return of [SWS_Rte_02741]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
The RTE_E_TRANSMIT_ACK return value is not considered to be
an error but rather indicates correct operation of the API call.
When RTE_E_NO_DATA occurs, a component is free to re-invoke
Rte_SwitchAck and thus repeat the attempt to read the status of
the mode switch.
[SWS_Rte_07848] d The initial return value of the Rte_SwitchAck
API before any attempt to switch a mode shall be
RTE_E_TRANSMIT_ACK. c(SRS_Rte_00094, SRS_Rte_00122)
[SWS_Rte_07849] d In case of multiple faults during
a call of Rte_SwitchAck the resulting return value
shall be derived according to the following priority rules
(highest priority first): (1) RTE_E_UNCONNECTED, (2)
RTE_E_IN_EXCLUSIVE_AREA, (3) RTE_E_TIMEOUT, (4)
RTE_E_NO_DATA, (5) RTE_E_TRANSMIT_ACK. c(SRS_Rte_00094,
SRS_Rte_00122)
Notes: If multiple mode switches of the same mode machine instance
are outstanding, it is not possible to determine which is acknowl-
edged first. If this is important, switches should be serialized with
the next switch occurring only when the previous switch has been
acknowledged. The queue length should be 1.

5.6.10 Rte_Read

Purpose: Performs an explicit read on a sender-receiver communication data

element with data semantics (swImplPolicy != queued). By
compatibility, the port may also have a ParameterInterface or
a NvDataInterface. The Rte_Read API is used for explicit read
by argument.
Signature: [SWS_Rte_01091] d
Std_ReturnType
Rte_[Byps_]Read_<p>_<o>(
[IN Rte_Instance <instance>],
OUT <data>,
[OUT Rte_TransformerError transformerError])

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Where <p> is the port name and <o> the VariableDataPro-

totype within the sender-receiver interface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00141,
SRS_Rte_00028, SRS_Rte_00131)
Existence: [SWS_Rte_01289] d A non-blocking Rte_Read API shall be gen-
erated if a VariableAccess in the dataReceivePointByArgu-
ment role references a required VariableDataPrototype with
data semantics. c(SRS_Rte_00051)
[SWS_Rte_07396] d The RTE shall ensure that direct explicit read
accesses will not deliver undefined data item values. In case there
may be an explicit read access before the first data reception an initial
value shall be provided as the result of this explicit read access. c
(SRS_Rte_00051, SRS_Rte_00183)
A WaitPoint cannot reference a DataReceivedEvent that
in turn references a required VariableDataPrototype with
data semantics shall be considered an invalid configuration (see
[SWS_Rte_03018]). Hence there are no blocking Rte_Read API.
[SWS_Rte_CONSTR_09021] Rte_Read API may only be used by
the runnable that describe its usage d The Rte_Read API may
only be used by the runnable that contains the corresponding Vari-
ableAccess in the dataReceivePointByArgument role c()
[SWS_Rte_01313] d A DataReceivedEvent that references a
runnable entity and is referenced by a WaitPoint shall be an in-
valid configuration. c(SRS_Rte_00051, SRS_Rte_00018)
The RTE generator shall take into account the kind of provide port
which might not be just a variable but also a Parameter (fixed, const
or standard), a standard sender (i.e. a variable) or a NV data. The
table 4.7 gives an overview of compatibility rules.
[SWS_Rte_08563] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
Description: The Rte_Read API call includes the OUT parameter <data> to pass
back the received data.
The pointer to the OUT parameter <data> must remain valid until
the API call returns.

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The OUT parameter transformerError contains the transformer

error which occured during execution of the transformer chain. See
chapter 4.10.5.
Return Value: The return value is used to indicate errors detected by the RTE dur-
ing execution of the Rte_Read API call or errors detected by the
communication system.
[SWS_Rte_01093] d RTE_E_OK data read successfully. c
(SRS_Rte_00094)
[SWS_Rte_02626] d RTE_E_INVALID data element in-
valid. c(SRS_Rte_00078)
[SWS_Rte_02703] d RTE_E_MAX_AGE_EXCEEDED data
element outdated. This Overlayed Error can be com-
bined with any other error code. c(SRS_Rte_00147)
[SWS_Rte_07643] d RTE_E_NEVER_RECEIVED No
data received since system start or partition restart. c
(SRS_Rte_00184, SRS_Rte_00224)
[SWS_Rte_01371] d RTE_E_OUT_OF_RANGE data ele-
ment out of range. c(SRS_Rte_00180)
[SWS_Rte_01391] d RTE_E_COM_BUSY The read request is
rejected due to a currently ongoing reception. No received data
can be provided. c(SRS_Rte_00246)
Note: API call can be retried after the currently ongoing request
has finished.
[SWS_Rte_06830] d RTE_E_COM_STOPPED The RTE could
not perform the operation because the COM service is currently
not available (inter ECU communication only). RTE shall return
RTE_E_COM_STOPPED when the corresponding COM service
returns COM_SERVICE_NOT_AVAILABLE. In case of stopped
I-PDUS the last known value (or init value) is given back as
data. c(SRS_Rte_00094)
RTE_E_UNCONNECTED Indicates that the receiver port is not
connected [SWS_Rte_01330].
[SWS_Rte_08548] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08554] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)

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[SWS_Rte_08592] d In case of multiple faults during a call of

Rte_Read the resulting return value shall be derived according to
the following priority rules (highest priority first):
1. RTE_E_UNCONNECTED
2. RTE_E_COM_STOPPED
3. RTE_E_NEVER_RECEIVED
4. RTE_E_COM_BUSY
5. RTE_E_HARD_TRANSFORMER_ERROR
6. RTE_E_INVALID
7. RTE_E_OUT_OF_RANGE
8. RTE_E_SOFT_TRANSFORMER_ERROR
c(SRS_Rte_00028)
Please note that RTE_E_MAX_AGE_EXCEEDED is an overlay error
and could be combined with any other error. Nevertheless in case
of RTE_E_UNCONNECTED or RTE_E_COM_STOPPED time out mon-
itoring is NOT active which in turn excludes the coincidence of
RTE_E_MAX_AGE_EXCEEDED.
Notes: The API name includes an identifier <p>_<o> that indicates the read
access point name and is formed from the port and operation item
names. See section 5.2.6.4 for details on the naming convention.

5.6.11 Rte_DRead

Purpose: Performs an explicit read on a sender-receiver communication data

element with data semantics (swImplPolicy != queued). By
compatibility, the port may also have a ParameterInterface or
a NvDataInterface. The Rte_DRead API is used for explicit read
by value.
Signature: [SWS_Rte_07394] d
<return>
Rte_[Byps_]DRead_<p>_<o>([IN Rte_Instance <instance>],
[OUT Rte_TransformerError transformerError])

Where <p> is the port name and <o> the VariableDataPro-

totype within the sender-receiver interface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00141,
SRS_Rte_00028, SRS_Rte_00131, SRS_Rte_00183)

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Existence: [SWS_Rte_07395] d A non-blocking Rte_DRead API shall be gen-

erated if a VariableAccess in the dataReceivePointByValue
role references a required VariableDataPrototype with data
semantics. This requirement is applicable only for primitive data
types. c(SRS_Rte_00051, SRS_Rte_00183)
The RTE shall ensure that direct explicit read accesses will not de-
liver undefined data item values. In case there may be an explicit
read access before the first data reception an initial value has to be
provided as the result of this explicit read access. [SWS_Rte_07396]
A WaitPoint cannot reference a DataReceivedEvent that in turn
references a required VariableDataPrototype with data se-
mantics. Such a configuration has to be considered as invalid (see
[SWS_Rte_03018]). Hence there are no blocking Rte_DRead API.
[SWS_Rte_CONSTR_09022] Rte_DRead API may only be used
by the runnable that describe its usage d The Rte_DRead API
may only be used by the runnable that contains the corresponding
VariableAccess in the dataReceivePointByValue role c()
A DataReceivedEvent that references a runnable entity and
is referenced by a WaitPoint shall be an invalid configuration.
[SWS_Rte_01313]
The RTE generator shall take into account the kind of provide port
which might not be just a variable but also a Parameter (fixed, const
or standard), a standard sender (i.e. a variable) or a NV data. The
table 4.7 gives an overview of compatibility rules.
[SWS_Rte_08565] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
Description: The Rte_DRead API returns the received data as a return value.
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.
Return Value: The Rte_DRead return value provide access to the data value of the
VariableDataPrototype.
The return type of Rte_DRead is dependent on the Implementa-
tionDataType of the VariableDataPrototype. Thus the com-
ponent does not need to use type casting to convert access to the
VariableDataPrototype data.
For details of the <return> value definition see section 5.2.6.6.

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Please note that the Rte_DRead API only supports VariableDat-

aPrototypes typed by a Primitive Implementation Data
Type or Redefinition Implementation Data Type redefin-
ing a Primitive Implementation Data Type.
Notes: The API name includes an identifier <p>_<o> that indicates the read
access point name and is formed from the port and operation item
names. See section 5.2.6.4 for details on the naming convention.

5.6.12 Rte_Receive

Purpose: Performs an explicit read on a sender-receiver communication data

element with event semantics (swImplPolicy = queued).
[SWS_Rte_01092] d
Std_ReturnType
Rte_[Byps_]Receive_<p>_<o>([IN Rte_Instance <instance>],
OUT <data>,
[OUT Rte_TransformerError transformerError])

Where <p> is the port name and <o> the data element within the
sender-receiver interface categorizing the port. [Byps_] is an op-
tional infix used when component wrapper method for bypass sup-
port is enabled for the related software component type (See chap-
ter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00141, SRS_Rte_00028,
SRS_Rte_00131)
Existence: [SWS_Rte_01288] d A non-blocking Rte_Receive API shall be
generated if a VariableAccess in the dataReceivePointB-
yArgument role references a required VariableDataPrototype
with event semantics. c(SRS_Rte_00051)
[SWS_Rte_07638] d The RTE Generator shall reject configurations
were a VariableDataPrototype with event semantics is refer-
enced by a VariableAccess in the dataReceivePointByValue
role. c(SRS_Rte_00018)
[SWS_Rte_01290] d A blocking Rte_Receive API shall be gener-
ated if a VariableAccess in the dataReceivePointByArgu-
ment role references a required VariableDataPrototype with
event semantics that is, in turn, referenced by a DataReceivedE-
vent and the DataReceivedEvent is referenced by a WaitPoint.
c(SRS_Rte_00051)
[SWS_Rte_CONSTR_09023] Rte_Receive API may only be
used by the runnable that describe its usage d The Rte_Receive
API may only be used by the runnable that contains the correspond-

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ing VariableAccess in the dataReceivePointByArgument role

c()
A DataReceivedEvent that references a runnable entity and is refer-
enced by a WaitPoint has to be treated as an invalid configuration.
[SWS_Rte_01313]
[SWS_Rte_08564] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
Description: The Rte_Receive API call includes the OUT parameter <data> to
pass back the received data element.
The pointers to the OUT parameters must remain valid until the API
call returns.
[SWS_Rte_07673] d In case return value is
RTE_E_NO_DATA, RTE_E_TIMEOUT, RTE_E_UNCONNECTED or
RTE_E_IN_EXCLUSIVE_AREA, the OUT parameters shall remain
unchanged. c(SRS_Rte_00094, SRS_Rte_00141)
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.
Return Value: The return value is used to indicate errors detected by the RTE during
execution of the Rte_Receive API call or errors detected by the
communication system.
[SWS_Rte_02598] d RTE_E_OK data read successfully. c
(SRS_Rte_00094)
[SWS_Rte_01094] d RTE_E_NO_DATA (explicit non-blocking
read) no events were received and no other error occurred when
the read was attempted. c(SRS_Rte_00094)
[SWS_Rte_01095] d RTE_E_TIMEOUT (explicit blocking read)
no events were received and no other error occurred when the
read was attempted. c(SRS_Rte_00094, SRS_Rte_00069)
[SWS_Rte_02572] d RTE_E_LOST_DATA Indicates that some
incoming data has been lost due to an overflow of the receive
queue or due to an error of the underlying communication layers.
This is not an error of the data returned in the parameters. This
Overlayed Error can be combined with any other error. c
(SRS_Rte_00107, SRS_Rte_00110, SRS_Rte_00094)
RTE_E_UNCONNECTED Indicates that the receiver port is not
connected [SWS_Rte_01331].

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Unlike RTE_E_NO_DATA, there is no need to retry receiving an

event in this case.
[SWS_Rte_02743] d RTE_E_IN_EXCLUSIVE_AREA Used
only for the blocking API. RTE_E_IN_EXCLUSIVE_AREA indi-
cates that the runnable can not enter wait, as one of the Ex-
ecutableEntitys in the call stack of this task is currently in
an exclusive area, see [SWS_Rte_02739]. - In a properly con-
figured system, this error should not occur. The check can be
disabled according to [SWS_Rte_08320]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_08320] d If RteInExclusiveAreaCheckEn-
abled is set to false the RTE generator shall omit the
check and return of [SWS_Rte_02743]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_08549] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08552] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
The RTE_E_NO_DATA, RTE_E_TIMEOUT and
RTE_E_UNCONNECTED return values are not considered to be
errors but rather indicate correct operation of the API call.
[SWS_Rte_08593] d In case of multiple faults during a call of
Rte_Receive the resulting return value shall be derived according
to the following priority rules (highest priority first):
1. RTE_E_UNCONNECTED
2. RTE_E_IN_EXCLUSIVE_AREA
3. RTE_E_TIMEOUT
4. RTE_E_HARD_TRANSFORMER_ERROR
5. RTE_E_SOFT_TRANSFORMER_ERROR
6. RTE_E_NO_DATA
c(SRS_Rte_00028)
Please note that RTE_E_LOST_DATA is an overlay error and could
be combined with any other error. Nevertheless in case of

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RTE_E_UNCONNECTED its not possible to lose data which in turn ex-

cludes the coincidence of RTE_E_LOST_DATA.
Notes: The API name includes an identifier <p>_<o> that indicates the read
access point name and is formed from the port and operation item
names. See Section 5.2.6.4 for details on the naming convention.

5.6.13 Rte_Call

Purpose: Initiate a client-server communication.

Signature: [SWS_Rte_01102] d
Std_ReturnType
Rte_[Byps_]Call_<p>_<o>([IN Rte_Instance <instance>],
[IN|IN/OUT|OUT] <data_1>...
[IN|IN/OUT|OUT] <data_n>,
[OUT Rte_TransformerError transformerError])

Where <p> is the port name and <o> the operation within the client-
server interface categorizing the port. [Byps_] is an optional infix
used when component wrapper method for bypass support is en-
abled for the related software component type (See chapter 4.9.2). c
(SRS_BSW_00310, SRS_Rte_00029)
Existence: [SWS_Rte_01293] d A synchronous Rte_Call API shall be gen-
erated if a SynchronousServerCallPoint references a required
ClientServerOperation. c(SRS_Rte_00051, SRS_Rte_00111)
[SWS_Rte_01294] d An asynchronous Rte_Call API shall
be generated if an AsynchronousServerCallPoint refer-
ences a required ClientServerOperation. c(SRS_Rte_00051,
SRS_Rte_00111)
A configuration that includes both synchronous and asynchronous
ServerCallPoints for a given ClientServerOperation is invalid
([SWS_Rte_03014]).
[SWS_Rte_CONSTR_09024] Rte_Call API may only be used
by the runnable that describe its usage d The Rte_Call API
may only be used by the runnable that contains the corresponding
ServerCallPoint c()
[SWS_Rte_08566] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)

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Description: Client function to initiate client-server communication. The

Rte_Call API is used for both synchronous and asynchronous calls.
The Rte_Call API includes zero or more IN, IN/OUT and OUT pa-
rameters.
[SWS_Rte_06639] d IN/OUT parameters are passed by value when
they are "Primitive Implementation Data Type"s and the call is asyn-
chronous. c(SRS_Rte_00051, SRS_Rte_00111)
Rational: In case of an asynchronous call, the IN/OUT parameters
are only IN parameters.
The IN, IN/OUT and OUT parameters are passed by value or refer-
ence according to the ImplementationDataType as described in
the section 5.2.6.5.
The pointers to all parameters passed by reference must remain valid
until the API call returns.
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.
Return Value: [SWS_Rte_01103] d The return value shall be used to indicate
infrastructure errors detected by the RTE during execution of the
Rte_Call call and, for synchronous communication, infrastruc-
ture and application errors during execution of the server. c
(SRS_Rte_00094, SRS_Rte_00123, SRS_Rte_00124)
[SWS_Rte_01104] d RTE_E_OK The API call completed suc-
cessfully. c(SRS_Rte_00094)
Note: This means that RTE_E_OK is returned when neither an
infrastructure error nor an overlay error occurred at the invoca-
tion of the server runnable and the invoked server runnable was
returning a value equal to E_OK.
[SWS_Rte_01105] d RTE_E_LIMIT The client has multi-
ple outstanding asynchronous client-server invocations of the
same operation in the same port. The server invocation shall
be discarded, the buffers of the return parameters shall not
be modified (see also [SWS_Rte_02658]). c(SRS_Rte_00094,
SRS_Rte_00079)
[SWS_Rte_08727] d RTE_E_TRANSFORMER_LIMIT The RTE
is not able to allocate the buffer needed to transform the data. c
(SRS_Rte_00094, SRS_Rte_00091)
[SWS_Rte_08728] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain

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represented a hard transformer error. c(SRS_Rte_00094,

SRS_Rte_00091)
[SWS_Rte_08555] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
[SWS_Rte_01106] d RTE_E_COM_STOPPED the RTE could
not perform the operation because the COM service is currently
not available (inter ECU communication only). RTE shall return
RTE_E_COM_STOPPED when the corresponding COM service
returns COM_SERVICE_NOT_AVAILABLE. The buffers of the re-
turn parameters shall not be modified. c(SRS_Rte_00094)
[SWS_Rte_01107] d RTE_E_TIMEOUT (synchronous inter-
task and inter-ECU only) No reply was received within the con-
figured timeout. The buffers of the return parameters shall not
be modified. c(SRS_Rte_00094, SRS_Rte_00069)
RTE_E_UNCONNECTED Indicates that the client port is not con-
nected [SWS_Rte_01334].
[SWS_Rte_02744] d RTE_E_IN_EXCLUSIVE_AREA Used
only for the blocking API. RTE_E_IN_EXCLUSIVE_AREA indi-
cates that the runnable can not enter wait, as one of the Ex-
ecutableEntitys in the call stack of this task is currently in
an exclusive area, see [SWS_Rte_02739]. - In a properly con-
figured system, this error should not occur. The check can be
disabled according to [SWS_Rte_08321]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_08321] d If RteInExclusiveAreaCheckEn-
abled is set to false the RTE generator shall omit the
check and return of [SWS_Rte_02744]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_02755] d RTE_E_SEG_FAULT a segmentation vio-
lation is detected in the handed over parameters to the RTE API
as required in [SWS_Rte_02752] and [SWS_Rte_02753]. No
transmission is executed. c(SRS_Rte_00210)
[SWS_Rte_02577] d The application error (synchronous client-
server) from a server shall only be returned if none of the above
infrastructure errors (other than RTE_E_OK) have occurred. c
(SRS_Rte_00123)
[SWS_Rte_01392] d RTE_E_COM_BUSY The transmission is
rejected due to a currently ongoing transmission. The transmis-
sion is not executed. c(SRS_Rte_00246)

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Note: API call can be retried after the currently ongoing request
has finished.
[SWS_Rte_08594] d In case of multiple faults during a call of
Rte_Call the resulting return value shall be derived according to
the following priority rules (highest priority first):
1. RTE_E_UNCONNECTED
2. RTE_E_IN_EXCLUSIVE_AREA
3. RTE_E_LIMIT
4. RTE_E_SEG_FAULT
5. RTE_E_TRANSFORMER_LIMIT
6. RTE_E_HARD_TRANSFORMER_ERROR
7. RTE_E_COM_STOPPED / RTE_E_COM_BUSY
8. RTE_E_TIMEOUT
9. "application error"
10. RTE_E_SOFT_TRANSFORMER_ERROR
c(SRS_Rte_00028)
Note that the RTE_E_OK return value indicates that the Rte_Call
API call completed successfully. In case of a synchronous client
server call it also indicates successful processing of the request by
the server.
An asynchronous server invocation is considered to be outstanding,
if alternatively
1. no timeout has occurred, an AsynchronousServerCallRe-
sultPoint exists, and the client has not retrieved the result
successfully yet.
2. no timeout has occurred, no AsynchronousServerCallRe-
sultPoint exists, and the server has not finished to process
the last request of the client yet.
3. a timeout has been detected by the RTE in inter-ECU and inter-
partition communication.
4. the server runnable has terminated after a timeout was detected
in intra-ECU communication.
When the RTE_E_TIMEOUT error occurs, RTE shall discard any sub-
sequent responses to that request, (see [SWS_Rte_02657]).

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Notes: [SWS_Rte_01109] d The interface operations OUT parameters

shall be omitted for an asynchronous call. c(SRS_Rte_00029,
SRS_Rte_00079)
In case of asynchronous communication:
the Rte_Call only includes IN and IN/OUT parameters.
the Rte_Result only includes IN/OUT and OUT parameters to
collect the result of the server call.
the IN/OUT parameters provided during the Rte_Call can be
a different addresse than the IN/OUT parameter passed during
the Rte_Result.

5.6.14 Rte_Result

Purpose: Get the result of an asynchronous client-server call.

Signature: [SWS_Rte_01111] d
Std_ReturnType
Rte_[Byps_]Result_<p>_<o>([IN Rte_Instance <instance>],
[IN/OUT|OUT <param 1>]...
[IN/OUT|OUT <param n>],
[OUT Rte_TransformerError transformerError])

Where <p> is the port name and <o> the operation within the client-
server interface categorizing the port. [Byps_] is an optional infix
used when component wrapper method for bypass support is en-
abled for the related software component type (See chapter 4.9.2). c
(SRS_BSW_00310)
The signature can include zero or more IN/OUT and OUT parame-
ters depending on the signature of the operation in the client-server
interface.
Existence: [SWS_Rte_01296] d A non-blocking Rte_Result API shall be gen-
erated if an AsynchronousServerCallResultPoint exists for
the specific RunnableEntity and this AsynchronousServer-
CallResultPoint references an AsynchronousServerCall-
Point which according to [SWS_Rte_01294] leads to the genera-
tion of an asynchronous Rte_Call API but no WaitPoint (of the
RunnableEntity) references an AsynchronousServerCallRe-
turnsEvent that references the AsynchronousServerCallRe-
sultPoint. c(SRS_Rte_00051)
Please note that a non-blocking Rte_Result API does not require
the existence of a AsynchronousServerCallReturnsEvent. If
the AsynchronousServerCallReturnsEvent exists it can be

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used to trigger the execution of a RunnableEntity in which the

non-blocking Rte_Result API function may be called.
[SWS_Rte_01297] d A blocking Rte_Result API shall be gen-
erated if an AsynchronousServerCallResultPoint exists for
the specific RunnableEntity and this AsynchronousServer-
CallResultPoint references an AsynchronousServerCall-
Point which according to [SWS_Rte_01294] leads to the genera-
tion of an asynchronous Rte_Call API and a WaitPoint (of the
RunnableEntity) references an AsynchronousServerCallRe-
turnsEvent that references the AsynchronousServerCallRe-
sultPoint. c(SRS_Rte_00051)
[SWS_Rte_CONSTR_09025] Blocking Rte_Result API may only
be used by the runnable that describe the WaitPoint d The
blocking Rte_Result API may only be used by the runnable that
contains the corresponding WaitPoint c()
[SWS_Rte_01298] d If an AsynchronousServerCallRe-
turnsEvent references a RunnableEntity and a required
ClientServerOperation, the RunnableEntity shall be acti-
vated when the operations result is available or when a timeout was
detected by the RTE [SWS_Rte_01133]. c(SRS_Rte_00051)
Requirement [SWS_Rte_01298] merely affects when the runnable is
activated an API call should still be created to actually read the
reply based on requirement [SWS_Rte_01296].
[SWS_Rte_01312] d An AsynchronousServerCallReturnsEv-
ent that references a runnable entity and is referenced by a Wait-
Point is invalid. c(SRS_Rte_00051)
[SWS_Rte_08567] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
Description: The Rte_Result API is used by a client to collect the result of an
asynchronous client-server communication.
The Rte_Result API includes zero or more IN/OUT and OUT pa-
rameters to pass back results.
The pointers to all parameters passed by reference must remain valid
until the API call returns.
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.

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Return Value: The return value is used to indicate errors from either the
Rte_Result call itself or communication errors detected before the
API call was made.
[SWS_Rte_01112] d RTE_E_OK The API call completed suc-
cessfully. c(SRS_Rte_00094)
Note: This means that RTE_E_OK is returned when neither an
infrastructure error nor an overlay error occurred at the invoca-
tion of the server runnable and the invoked server runnable was
returning a value equal to E_OK.
[SWS_Rte_08591] d RTE_E_TRANSFORMER_LIMIT The RTE
is not able to allocate the buffer needed to transform the data. c
(SRS_Rte_00094, SRS_Rte_00091)
[SWS_Rte_08729] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08556] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
[SWS_Rte_01113] d RTE_E_NO_DATA (non-blocking read)
The servers result is not available but no other error occurred
within the API call or the server was not called since Rte_Start
or the restart of the Partition. The buffers for the IN/OUT and
OUT parameters shall not be modified. c(SRS_Rte_00094)
[SWS_Rte_08301] d RTE_E_NO_DATA (non-
blocking read) The previous Rte_Call returned an
RTE_E_SEG_FAULT, RTE_E_TRANSFORMER_LIMIT,
RTE_E_HARD_TRANSFORMER_ERROR. c(SRS_Rte_00094)
[SWS_Rte_01114] d RTE_E_TIMEOUT The servers result is
not available within the specified timeout but no other error oc-
curred within the API call. The buffers for the IN/OUT and
OUT parameters shall not be modified. c(SRS_Rte_00094,
SRS_Rte_00069)
[SWS_Rte_03606] d RTE_E_COM_STOPPED the RTE could
not perform the operation because the COM service is currently
not available (inter ECU communication only). RTE shall re-
turn RTE_E_COM_STOPPED when the corresponding COM ser-
vice returns COM_SERVICE_NOT_AVAILABLE. The servers re-
sult has not been successfully retrieved from the communication

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service. The buffers of the return parameters shall not be modi-

fied. c(SRS_Rte_00094)
RTE_E_UNCONNECTED Indicates that the client port is not con-
nected [SWS_Rte_01333].
[SWS_Rte_02745] d RTE_E_IN_EXCLUSIVE_AREA Used
only for the blocking API. RTE_E_IN_EXCLUSIVE_AREA indi-
cates that the runnable can not enter wait, as one of the Ex-
ecutableEntitys in the call stack of this task is currently in
an exclusive area, see [SWS_Rte_02739]. - In a properly con-
figured system, this error should not occur. The check can be
disabled according to [SWS_Rte_08322]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_08322] d If RteInExclusiveAreaCheckEn-
abled is set to false the RTE generator shall omit the
check and return of [SWS_Rte_02745]. c(SRS_Rte_00092,
SRS_Rte_00046, SRS_Rte_00032)
[SWS_Rte_02746] d Rte_Result shall not return
RTE_E_IN_EXCLUSIVE_AREA, if the wait is resolved by a
mapping of the server runnable to a task with higher priority
on the same core. c(SRS_Rte_00092, SRS_Rte_00046,
SRS_Rte_00032)
[SWS_Rte_08302] d RTE_E_SEG_FAULT a segmentation vio-
lation is detected in the handed over parameters to the RTE API
as required in [SWS_Rte_02752] and [SWS_Rte_02753]. No
transmission is executed. c(SRS_Rte_00094)
[SWS_Rte_01393] d RTE_E_COM_BUSY The query for the re-
sult is rejected due to a currently ongoing reception. No result
data can be provided. c(SRS_Rte_00246)
Note: API call can be retried after the currently ongoing request
has finished.
[SWS_Rte_02578] d Application Errors The error code of the
server shall only be returned, if none of the above infrastruc-
ture errors or indications have occurred. c(SRS_Rte_00094,
SRS_Rte_00123)
[SWS_Rte_08595] d In case of multiple faults during a call of
Rte_Result the resulting return value shall be derived according
to the following priority rules (highest priority first):
1. RTE_E_UNCONNECTED
2. RTE_E_IN_EXCLUSIVE_AREA
3. RTE_E_SEG_FAULT

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4. RTE_E_COM_STOPPED / RTE_E_COM_BUSY / RTE_E_TIMEOUT

5. RTE_E_TRANSFORMER_LIMIT
6. RTE_E_HARD_TRANSFORMER_ERROR
7. "application error"
8. RTE_E_SOFT_TRANSFORMER_ERROR
c(SRS_Rte_00028)
The RTE_E_NO_DATA, RTE_E_TIMEOUT, and
RTE_E_UNCONNECTED return values are not considered to be
errors but rather indicate correct operation of the API call.
When the RTE_E_TIMEOUT error occurs, RTE has to discard any
subsequent responses to that request, (see [SWS_Rte_02657]).
When RTE_E_NO_DATA occurs, a component is free to invoke
Rte_Result again and thus repeat the attempt to read the servers
result.
Notes: The API name includes an identifier <p>_<o> that indicates the read
access point name and is formed from the port and operation item
names. See Section 5.2.6.4 for details on the naming convention.
If a AsynchronousServerCallPoint exists which is not refer-
enced by a WaitPoint, a non-blocking Rte_Result API shall be
generated. In this case Rte_Result has to return RTE_E_NO_DATA
until the timeout expires and RTE_E_TIMEOUT afterwards.

5.6.15 Rte_Pim

Purpose: Provide access to the defined per-instance memory (section) of a

software component.
Signature: [SWS_Rte_01118] d
<type>/<return reference>
Rte_[Byps_]Pim_<name>([IN Rte_Instance <instance>])

Where <name> is the (short) name of the per-instance name.

[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00075)
Existence: [SWS_Rte_01299] d An Rte_Pim API shall be created for
each defined PerInstanceMemory or arTypedPerInstance-
Memory within the AUTOSAR software-component (description). c
(SRS_Rte_00051)

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Description: The Rte_Pim API provides access to the per-instance memory

(section) defined in the context of a SwcInternalBehavior of a
software-component description.
Return Value: [SWS_Rte_01119] d The API returns a typed reference (in C a
typed pointer) to the per-instance memory. c(SRS_Rte_00051,
SRS_Rte_00075)
Notes: For a C typed PerInstanceMemory, the name of the re-
turn type <type> has to be defined in the type attribute of the
PerInstanceMemory. The type itself is defined using the type-
Definition attribute of the PerInstanceMemory. It is as-
sumed that this attribute contains a string that represents a C
type definition (typedef) in valid C syntax (see [SWS_Rte_02304]
and [SWS_Rte_07133]). For an arTypedPerInstanceMemory
the <return reference> is defined by the associated Au-
tosarDataType (see [SWS_Rte_07161]). For details of the
<return reference> definition see section 5.2.6.7.

5.6.16 Rte_CData

Purpose: Provide access to the calibration parameter an AUTOSAR software-

component defined internally. The ParameterDataPrototype in
the role perInstanceParameter or sharedParameter is used
to define software component internal calibration parameters. Inter-
nal because the ParameterDataPrototype cannot be reused out-
side the software-component. Access is read-only. It can be config-
ured for each calibration parameter individually if it is shared by all
instances of an AUTOSAR software-component or if each instance
has an own data value associated with it.
Signature: [SWS_Rte_01252] d
<return>
Rte_[Byps_]CData_<name>([IN Rte_Instance <instance>])

Where <name> is the calibration parameter name. [Byps_] is an

optional infix used when component wrapper method for bypass sup-
port is enabled for the related software component type (See chap-
ter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00155)
Existence: [SWS_Rte_01300] d An Rte_CData API shall be generated if a
ParameterAccess references a ParameterDataPrototype in
the role perInstanceParameter or sharedParameter within the
SwcInternalBehavior of an AUTOSAR software-component. c
(SRS_Rte_00051, SRS_Rte_00155)
Description: The Rte_CData API provides access to the defined calibration pa-
rameter within a software-component. The actual data values for a

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software-component instance may be set after component compila-

tion.
Return Value: The Rte_CData return value provide access to the data value of the
ParameterDataPrototype in the role perInstanceParameter
or sharedParameter.
The return type of Rte_CData is dependent on the Implementa-
tionDataType of the ParameterDataPrototype and can either
be a value or a pointer to the location where the value can be ac-
cessed. Thus the component does not need to use type casting to
convert access to the ParameterDataPrototype data.
For details of the <return> value definition see section 5.2.6.6.
[SWS_Rte_03927] d If a ParameterDataPrototype is aggre-
gated by an SwcInternalBehavior in the role of sharedParam-
eter, the return value of the corresponding Rte_CData API shall
provide access to the calibration parameter value common to all
instances of the AtomicSwComponentType. c(SRS_Rte_00051,
SRS_Rte_00155)
[SWS_Rte_03952] d If a ParameterDataPrototype is aggre-
gated by an SwcInternalBehavior in the role of perInstan-
ceParameter, the return value of the corresponding Rte_CData
API shall provide access to the calibration parameter value specific to
the instance of the AtomicSwComponentType. c(SRS_Rte_00051,
SRS_Rte_00155)
Notes: None.

5.6.17 Rte_Prm

Purpose: Provide access to the parameters defined by an AUTOSAR Param-

eterSwComponentType. Access is read-only.
Signature: [SWS_Rte_03928] d
<return>
Rte_[Byps_]Prm_<p>_<o>([IN Rte_Instance <instance>])

Where <p> is the port name and <o> is the name of the Param-
eterDataPrototype within the ParameterInterface catego-
rizing the port. [Byps_] is an optional infix used when compo-
nent wrapper method for bypass support is enabled for the related
software component type (See chapter 4.9.2). c(SRS_BSW_00310,
SRS_Rte_00155)

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Existence: [SWS_Rte_03929] d A Rte_Prm API shall be generated if a Param-

eterAccess references a ParameterDataPrototype in a require
PortPrototype. c(SRS_BSW_00310, SRS_Rte_00155)
Description: The Rte_Prm API provides access to the defined parameter within a
ParameterSwComponentType.
In the case of a standard parameter (swImplPolicy = stan-
dard), i.e. a calibration, the actual data values for a Parameter-
SwComponentType instance may be set after ParameterSwCom-
ponentType compilation.
In the case of fixed parameter or constant parameter, the value
is set during compilation time.
Return Value: [SWS_Rte_03930] d For primitive data types, the Rte_Prm API shall
return the parameter value. For composite data types, the Rte_Prm
API shall return a reference (in C, a pointer) to the parameter, which
shall be const. With fixed parameters, only primitive data is possi-
ble.
The return type of Rte_Prm is specified by the Implementa-
tionDataType associated to the ParameterDataPrototype.
Thus the component does not need to use type casting to access
the calibration parameter. c(SRS_Rte_00051, SRS_Rte_00155,
SRS_Rte_00171) The Rte_Prm return value provide access to the
data value of the ParameterDataPrototype.
The return type of Rte_Prm is dependent on the Implementation-
DataType of the ParameterDataPrototype and can either be a
value or a pointer to the location where the value can be accessed.
Thus the component does not need to use type casting to convert
access to the ParameterDataPrototype data.
For details of the <return> value definition see section 5.2.6.6.
Notes: The Rte_Prm API should not be used within a pre-compilation direc-
tive, e.g. #if. For such case, the coder should use the Rte_SysCon
definitions which are dedicated to variant handling.

5.6.18 Rte_IRead

Purpose: Provide read access to the VariableDataPrototype referenced

by VariableAccess in the dataReadAccess role.
Signature: [SWS_Rte_03741] d
<return>
Rte_[Byps_]IRead_<re>_<p>_<o>(
[IN Rte_Instance <instance>])

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Where <re> is the runnable entity name, <p> the port name and
<o> the VariableDataPrototype name. [Byps_] is an optional
infix used when component wrapper method for bypass support is
enabled for the related software component type (See chapter 4.9.2).
c(SRS_BSW_00310, SRS_Rte_00128)
Existence: [SWS_Rte_01301] d An Rte_IRead API shall be created for a re-
quired VariableDataPrototype if the RunnableEntity has a
VariableAccess in the dataReadAccess role referring to this
VariableDataPrototype. c(SRS_Rte_00051)
[SWS_Rte_CONSTR_09083] Rte_IRead API may only be used
by the runnable that describe its usage d The Rte_IRead API
may only be used by the runnable that contains the corresponding
VariableAccess in the dataReadAccess role. c()
Description: The Rte_IRead API provides access to the VariableDataPro-
totypes declared as accessed by a runnable using VariableAc-
cesses in the dataReadAccess role. As the APIcan also be used
in context of category 1A runnables an implementation has to ensure
finite and constant execution times.
No error information is provided by this API. If required, the error
status can be picked up with a separate API, see 5.6.22
The data value can always be read. To provide the required consis-
tency the API provides access to a copy of the data data element for
which its guaranteed that it never changes during the actual execu-
tion of the runnable entity.
Implicit data read access by a SW-C should always return defined
data.
[SWS_Rte_01268] d The RTE shall ensure that implicit read
accesses will not deliver undefined data item values. c
(SRS_Rte_00108, SRS_Rte_00051, SRS_Rte_00128)
[SWS_Rte_01394] d In case read access is not possible due to a
currently ongoing reception the invalidValue shall be provided as
the result of this implicit read access. c(SRS_Rte_00246)
In case where there may be an implicit read access before the first
data reception an initial value has to be provided as the result of this
implicit read access.
Return Value: The Rte_IRead return value provide access to the data value of the
VariableDataPrototype.
The return type of Rte_IRead is dependent on the Implementa-
tionDataType of the VariableDataPrototype and can either
be a value or a pointer to the location where the value can be ac-

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cessed. Thus the component does not need to use type casting to
convert access to the VariableDataPrototype data.
For details of the <return> value definition see section 5.2.6.6.
Notes: None.

5.6.19 Rte_IWrite

Purpose: Provide write access to the VariableDataPrototypes referenced

by VariableAccesses in the dataWriteAccess role.
Signature: [SWS_Rte_03744] d
void
Rte_[Byps_]IWrite_<re>_<p>_<o>(
[IN Rte_Instance <instance>],
IN <data>)

Where <re> is the runnable entity name, <p> the port name and
<o> the VariableDataPrototype name. [Byps_] is an optional
infix used when component wrapper method for bypass support is
enabled for the related software component type (See chapter 4.9.2).
c(SRS_BSW_00310, SRS_Rte_00129)
Existence: [SWS_Rte_01302] d An Rte_IWrite API shall be created for a
provided VariableDataPrototype if the RunnableEntity has a
VariableAccess in the dataWriteAccess role referring to this
VariableDataPrototype. c(SRS_Rte_00051)
[SWS_Rte_CONSTR_09084] Rte_IWrite API may only be used
by the runnable that describe its usage d The Rte_IWrite API
may only be used by the runnable that contains the corresponding
VariableAccess in the dataWriteAccess role. c()
Description: The Rte_IWrite API provides write access to the VariableDat-
aPrototypes declared as accessed by a runnable using Vari-
ableAccesses in the dataWriteAccess role. The API function
is guaranteed to be have constant execution time and therefore can
also be used within category 1A runnable entities.
No access error information is required for the user the value can
always be written. To provide the required write-back semantics the
RTE only makes written values available to other entities after the
writing runnable entity has terminated.
[SWS_Rte_03746] d The Rte_IWrite API call includes the
IN parameter <data> to pass the data element to write. c
(SRS_Rte_00051, SRS_Rte_00129)

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The IN parameter <data> is passed by value or reference accord-

ing to the ImplementationDataType as described in the section
5.2.6.5.
If the IN parameter <data> is passed by reference, the pointer must
remain valid until the API call returns.
Return Value: None.
Notes: None.

5.6.20 Rte_IWriteRef

Purpose: Provide a reference to the VariableDataPrototype referenced

by a VariableAccess in the dataWriteAccess role.
Signature: [SWS_Rte_05509] d
<return reference>
Rte_[Byps_]IWriteRef_<re>_<p>_<o>(
[IN Rte_Instance <instance>])

Where <re> is the runnable entity name, <p> the port name and
<o> the VariableDataPrototype name. [Byps_] is an optional
infix used when component wrapper method for bypass support is
enabled for the related software component type (See chapter 4.9.2).
c(SRS_BSW_00310, SRS_Rte_00129)
Existence: [SWS_Rte_05510] d An Rte_IWriteRef API shall be created for a
provided VariableDataPrototype if the RunnableEntity has
a VariableAccess in the dataWriteAccess role referring to this
VariableDataPrototype. c(SRS_Rte_00051)
[SWS_Rte_CONSTR_09085] Rte_IWriteRef API may only
be used by the runnable that describe its usage d The
Rte_IWriteRef API may only be used by the runnable that con-
tains the corresponding VariableAccess in the dataWriteAc-
cess role. c()
Description: The Rte_IWriteRef API returns a reference to the VariableDat-
aPrototypes declared as accessed by a runnable using Vari-
ableAccesses in the dataWriteAccess role. The reference
can be used by the runnable to directly update the correspond-
ing data elements. This is especially useful for data elements
of Structure Implementation Data Type or Array Imple-
mentation Data Type. The API function is guaranteed to be have
constant execution time and therefore can also be used within cate-
gory 1A runnable entities.

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No error information is required for the user. To provide the required

write-back semantics the RTE only makes written values available to
other entities after the writing runnable entity has terminated.
[SWS_Rte_CONSTR_09026] Rte_IWriteRef may not return val-
ues written in previous executions d The reference returned by
Rte_IWriteRef shall not be used by the runnables for reading the
value previously written. c()
The rationale for [SWS_Rte_CONSTR_09026] is that
Rte_IWriteRef has a write semantic. Also, in case of an un-
connected port, the written data shall be discarded (similarly to
[SWS_Rte_01347]), and implementations may return a reference
to the same buffer for all Rte_IWriteRef of unconnected provide
ports.
Return Value: The Rte_IWriteRef return value provide access to the data write
buffer of the VariableDataPrototype.
[SWS_Rte_05511] d Rte_IWriteRef returns a reference to the
corresponding VariableDataPrototype. c(SRS_Rte_00051)
The return reference type of Rte_IWriteRef is dependent on
the ImplementationDataType of the VariableDataProto-
type and is a pointer to the location where the value can be ac-
cessed. Thus the component does not need to use type casting to
convert access to the VariableDataPrototype data.
For details of the <return reference> definition see section
5.2.6.7.
Notes: None.

5.6.21 Rte_IInvalidate

Purpose: Invalidate a VariableDataPrototype referenced by a Vari-

ableAccess in the dataWriteAccess role.
Signature: [SWS_Rte_03800] d
void Rte_[Byps_]IInvalidate_<re>_<p>_<o>(
[IN Rte_Instance <instance>])

Where <re> is the runnable entity name, <p> the port name and
<o> the VariableDataPrototype name. [Byps_] is an optional
infix used when component wrapper method for bypass support is
enabled for the related software component type (See chapter 4.9.2).
c(SRS_BSW_00310, SRS_Rte_00078)
Existence: [SWS_Rte_03801] d An Rte_IInvalidate API shall be created for
a provided VariableDataPrototype if the RunnableEntity has

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VariableAccesses in the dataWriteAccess role referring to this

VariableDataPrototype and the associated Invalidation-
Policy of the VariableDataPrototype is set to keep, replace
or externalReplacement. c(SRS_Rte_00051, SRS_Rte_00078)
[SWS_Rte_CONSTR_09086] Rte_IInvalidate API may only be
used by the runnable that is describing an write access to
the data d The Rte_IInvalidate API may only be used by the
runnable that contains the corresponding VariableAccess in the
dataWriteAccess role to the VariableDataPrototype where
the associated InvalidationPolicy of the VariableDataPro-
totype is set to keep or replace. c()
Description: The Rte_IInvalidate API takes no parameters other than the in-
stance handle the return value is used to indicate the success, or
otherwise, of the API call to the caller.
[SWS_Rte_03802] d In case of a primitive VariableDataProto-
type the Rte_IInvalidate shall be implemented as a macro that
writes the invalidValue to the buffer. c(SRS_Rte_00078)
[SWS_Rte_05064] d In case of a composite VariableDataProto-
type the Rte_IInvalidate shall be implemented as a macro that
writes the invalidValue of every primitive part of the composition
to the buffer. c(SRS_Rte_00078)
[SWS_Rte_03778] d If Rte_IInvalidate is followed by an
Rte_IWrite call for the same VariableDataPrototype or vice
versa, the RTE shall use the last value written before the runnable
entity terminates (last-is-best semantics). c(SRS_Rte_00078)
[SWS_Rte_03778] states that an Rte_IWrite overrules an
Rte_IInvalidate call if it occurs after the Rte_IInvalidate,
since Rte_IWrite overwrites the contents of the internal buffer for
the data element prototype before it is made known to other runnable
entities.
Return Value: None.
Notes: The communication service configuration determines whether the
signal receiver(s) receive an invalid signal notification or whether
the invalidated signal is silently replaced by the signals initial value.

5.6.22 Rte_IStatus

Purpose: Provide the error status of a VariableDataPrototype referenced

by a VariableAccess in the dataReadAccess role.
Signature: [SWS_Rte_02599] d

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Std_ReturnType
Rte_[Byps_]IStatus_<re>_<p>_<o>(
[IN Rte_Instance <instance>],
[OUT Rte_TransformerError transformerError])

Where <re> is the runnable entity name, <p> the port name and
<o> the VariableDataPrototype name. [Byps_] is an optional
infix used when component wrapper method for bypass support is
enabled for the related software component type (See chapter 4.9.2).
c(SRS_Rte_00147, SRS_Rte_00078)
Existence: [SWS_Rte_02600] d An Rte_IStatus API shall be created for a
required VariableDataPrototype if a RunnableEntity has a
VariableAccess in the dataReadAccess role referring to this
VariableDataPrototype, and
if at the RPortPrototype or PRPortPrototype a Non-
queuedReceiverComSpec with either
the attribute aliveTimeout set to a value greater than zero
and/or
the attribute handleNeverReceived set to TRUE and/or
the attribute handleOutOfRange not set to none and/or
the attribute handleDataStatus set to TRUE
and/or
if at the SenderReceiverInterface classifying the RPort-
Prototype or PRPortPrototype an InvalidationPolicy
set to keep
is specified for this VariableDataPrototype. c(SRS_Rte_00147,
SRS_Rte_00078)
[SWS_Rte_CONSTR_09027] Rte_IStatus API shall only be
used by a RunnableEntity describing an read access to
the related data d The Rte_IStatus API shall only be used
by a RunnableEntity that has a VariableAccess in the
dataReadAccess role referring to the VariableDataPrototype
to which the status belongs. c()
[SWS_Rte_08568] d The optional OUT parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
Description: The Rte_IStatus API provides access to the current status of the
data elements declared as accessed by a runnable using a Vari-

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ableAccess in the dataReadAccess role. The API function is

guaranteed to be have constant execution time and therefore can
also be used within category 1A runnable entities.
To provide the required consistency access by a runnable is to a copy
of the status together with the data that is guaranteed never to be
modified by the RTE during the lifetime of the runnable entity.
The OUT parameter transformerError contains the transformer
error which occured during execution of the transformer chain. See
chapter 4.10.5.
Return Value: The return value is used to indicate errors detected by the communi-
cation system.
[SWS_Rte_02602] d RTE_E_OK no errors. c
(SRS_Rte_00094)
[SWS_Rte_02603] d RTE_E_INVALID data element in-
valid. c(SRS_Rte_00078)
[SWS_Rte_02604] d RTE_E_MAX_AGE_EXCEEDED data
element outdated. This Overlayed Error can be com-
bined with any other error code. c(SRS_Rte_00147)
[SWS_Rte_07644] d RTE_E_NEVER_RECEIVED No
data received since system start or partition restart. c
(SRS_Rte_00184, SRS_Rte_00224)
[SWS_Rte_01372] d RTE_E_OUT_OF_RANGE data ele-
ment out of range. c(SRS_Rte_00180)
[SWS_Rte_06828] d RTE_E_COM_STOPPED The RTE could
not perform the operation because the COM service is currently
not available (inter ECU communication only). RTE shall return
RTE_E_COM_STOPPED when the corresponding COM service
returns COM_SERVICE_NOT_AVAILABLE. In case of stopped
I-PDUS the last known value (or init value) is given back as data
by the according Rte_IRead API. c(SRS_Rte_00094)
RTE_E_UNCONNECTED Indicates that the receiver port is not
connected [SWS_Rte_03785].
[SWS_Rte_08572] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08573] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer

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chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
Notes: [SWS_Rte_06829] d In case of multiple faults during reception of
the related data the resulting return value of Rte_IStatus shall be
derived according to the following priority rules (highest priority first):
1. RTE_E_UNCONNECTED
2. RTE_E_COM_STOPPED
3. RTE_E_NEVER_RECEIVED
4. RTE_E_HARD_TRANSFORMER_ERROR
5. RTE_E_INVALID
6. RTE_E_OUT_OF_RANGE
7. RTE_E_SOFT_TRANSFORMER_ERROR
c(SRS_Rte_00147, SRS_Rte_00078, SRS_Rte_00184,
SRS_Rte_00180)
Please note that RTE_E_MAX_AGE_EXCEEDED is an overlay error
and could be combined with any other error. Nevertheless in case
of RTE_E_UNCONNECTED or RTE_E_COM_STOPPED time out mon-
itoring is NOT active which in turn excludes the coincidence of
RTE_E_MAX_AGE_EXCEEDED.

5.6.23 Rte_IrvIRead

Purpose: Provide read access to the InterRunnableVariables with implicit be-

havior of an AUTOSAR SW-C.
Signature: [SWS_Rte_03550] d
<return> Rte_[Byps_]IrvIRead_<re>_<o>(
[IN RTE_Instance <instance>])

Where <re> is the name of the runnable entity the API might be
used in, <o> is the name of the VariableDataPrototype in role
implicitInterRunnableVariable. [Byps_] is an optional in-
fix used when component wrapper method for bypass support is en-
abled for the related software component type (See chapter 4.9.2). c
(SRS_BSW_00310, SRS_Rte_00142)
Existence: [SWS_Rte_01303] d An Rte_IrvIRead API shall be created
for each VariableAccess in role readLocalVariable to
an implicitInterRunnableVariable. c(SRS_Rte_00051,
SRS_Rte_00142)

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[SWS_Rte_CONSTR_09087] Rte_IrvIRead API may only be

used by the runnable that describe its usage d The
Rte_IrvIRead API may only be used by the runnable that contains
the corresponding VariableAccess in the readLocalVariable
role. c()
Description: The Rte_IrvIRead API provides read access to the defined Inter-
RunnableVariables with implicit behavior within a component descrip-
tion.
The return value is used to deliver the requested data value. The
return value is not required to pass error information to the user be-
cause no inter-ECU communication is involved and there will always
be a readable value present.
Return Value: The Rte_IrvIRead return value provide access to the data value of
the InterRunnableVariable.
The return type of Rte_IrvIRead is dependent on the Implemen-
tationDataType of the InterRunnableVariable and can either be a
value or a pointer to the location where the value can be accessed.
Thus the component does not need to use type casting to convert
access to the InterRunnableVariable data.
For details of the <return> value definition see section 5.2.6.6.
Notes: The runnable entity name in the signature allows runnable context
specific optimizations.
The concept of InterRunnableVariables is explained in section
4.2.5.6. More details about InterRunnableVariables with implicit be-
havior is explained in section 4.2.5.6.1.

5.6.24 Rte_IrvIWrite

Purpose: Provide write access to the InterRunnableVariables with implicit be-

havior of an AUTOSAR SW-C.
Signature: [SWS_Rte_03553] d
void Rte_[Byps_]IrvIWrite_<re>_<o>(
[IN RTE_Instance <instance>],
IN <data>)

Where <re> is the name of the RunnableEntity the API might

be used in, <o> is the name of the VariableDataPrototype
in the role implicitInterRunnableVariable to access and
<data> is the placeholder for the data the InterRunnableVariable
shall be set to. [Byps_] is an optional infix used when compo-
nent wrapper method for bypass support is enabled for the related

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software component type (See chapter 4.9.2). c(SRS_BSW_00310,

SRS_Rte_00142)
Existence: [SWS_Rte_01304] d An Rte_IrvIWrite API shall be created
for each VariableAccess in role writtenLocalVariable
to an implicitInterRunnableVariable. c(SRS_Rte_00142,
SRS_Rte_00051)
[SWS_Rte_CONSTR_09088] Rte_IrvIWrite API may only
be used by the runnable that describe its usage d The
Rte_IrvIWrite API may only be used by the runnable that con-
tains the corresponding VariableAccess in the writtenLocal-
Variable role. c()
Description: The Rte_IrvIWrite API provides write access to the InterRunnabl-
eVariables with implicit behavior within a component description. The
runnable entity name in the signature allows runnable context specific
optimizations.
The data given by Rte_IrvIWrite is dependent on the Inter-
RunnableVariable data type. Thus the component does not need to
use type casting to write the InterRunnableVariable.
The return value is unused. The return value is not required to pass
error information to the user because no inter-ECU communication is
involved and the value can always be written.
The IN parameter <data> is passed by value or reference accord-
ing to the ImplementationDataType as described in the section
5.2.6.5.
Return Value: None.
Notes: The runnable entity name in the signature allows runnable context
specific optimizations.
The concept of InterRunnableVariables is explained in section
4.2.5.6. Further details about InterRunnableVariables with implicit
behavior are explained in Section 4.2.5.6.1.

5.6.25 Rte_IrvIWriteRef

Purpose: Provide a reference to the VariableDataPrototype defined

with the implicitInterRunnableVariable role referenced by
a VariableAccess in the writtenLocalVariable role.
Signature: [SWS_Rte_06207] d
<return reference> Rte_[Byps_]IrvIWriteRef_<re>_<o>(
[IN RTE_Instance <instance>])

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Where <re> is the name of the RunnableEntity the API might

be used in, <o> is the name of the VariableDataPrototype in
the role implicitInterRunnableVariable to access. [Byps_]
is an optional infix used when component wrapper method for by-
pass support is enabled for the related software component type (See
chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00142)
Existence: [SWS_Rte_06208] d An Rte_IrvIWriteRef API shall be cre-
ated for each VariableAccess in role writtenLocalVariable
to an implicitInterRunnableVariable. c(SRS_Rte_00142,
SRS_Rte_00051)
[SWS_Rte_CONSTR_09092] Rte_IrvIWriteRef API may only
be used by the runnable that describe its usage d The
Rte_IrvIWriteRef API may only be used by the runnable that
contains the corresponding VariableAccess in the writtenLo-
calVariable role. c()
Description: The Rte_IrvIWriteRef API returns a reference to the Variable-
DataPrototypes declared as accessed by a runnable using Vari-
ableAccesss in the writtenLocalVariable role. The reference
can be used by the runnable to directly update the corresponding
data elements. This is especially useful for data elements of Struc-
ture Implementation Data Type or Array Implementation Data Type.
The API function is guaranteed to have constant execution time and
therefore can also be used within category 1A runnable entities.
No error information is required for the user. To provide the required
write-back semantics the RTE only makes written values available to
other entities after the writing runnable entity has terminated.
[SWS_Rte_CONSTR_09093] Rte_IrvIWriteRef may not return
values written in previous executions d The reference returned by
Rte_IrvIWriteRef shall not be used by the runnables for reading
the value previously written. c()
Return Value: The Rte_IrvIWriteRef return value provides access to the data
write buffer of the VariableDataPrototype.
[SWS_Rte_06209] d Rte_IrvIWriteRef returns a reference to the
corresponding VariableDataPrototype. c(SRS_Rte_00051)
The return reference type of Rte_IrvIWriteRef is dependent
on the ImplementationDataType of the VariableDataProto-
type and is a pointer to the location where the value can be ac-
cessed. Thus the component does not need to use type casting to
convert access to the VariableDataPrototype data. For details
of the <return reference> definition see section 5.2.6.7.
Notes: None.

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5.6.26 Rte_IrvRead

Purpose: Provide read access to the InterRunnableVariables with explicit be-

havior of an AUTOSAR SW-C.
Signature: [SWS_Rte_03560] d
primitive type signature:
<return> Rte_[Byps_]IrvRead_<re>_<o>(
[IN RTE_Instance <instance>])

complex type signature:

void Rte_[Byps_]IrvRead_<re>_<o>(
[IN RTE_Instance <instance>],
OUT <data>)

Where <re> is the name of the runnable entity the API might be used
in, <o> is the name of the InterRunnableVariables. [Byps_] is an
optional infix used when component wrapper method for bypass sup-
port is enabled for the related software component type (See chap-
ter 4.9.2).
The complex type signature is used, if the Implementation-
DataType of the InterRunnableVariable resolves to Array
Implementation Data Type or Structure Implementation
Data Type, otherwise the primitive type signature is used. c
(SRS_BSW_00310, SRS_Rte_00142)
Existence: [SWS_Rte_01305] d An Rte_IrvRead API shall be created
for each read InterRunnableVariable using explicit access. c
(SRS_Rte_00142, SRS_Rte_00051)
[SWS_Rte_CONSTR_09089] Rte_IrvRead API may only be
used by the runnable that describe its usage d The Rte_IrvRead
API may only be used by the runnable that contains the correspond-
ing VariableAccess in the readLocalVariable role. c()
Description: The Rte_IrvRead API provides read access to the defined Inter-
RunnableVariables with explicit behavior within a component descrip-
tion.
The return value is not required to pass error information to the user
because no inter-ECU communication is involved and there will al-
ways be a readable value present.
For the primitive type signature, the return value is used to deliver
the requested data value. For the complex type signature, the return
value is void.
For the complex type signature, the Rte_IrvRead API call includes
the OUT parameter <data> to pass back the received data. The

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OUT parameter <data> is typed as reference (pointer) to the type

of the InterRunnableVariable. The pointer to the OUT parameter
<data> must remain valid until the API call returns.
Return Value: The Rte_IrvRead return value provide access to the data value of
the InterRunnableVariable.
The return type of Rte_IrvRead is dependent on the Implementa-
tionDataType of the InterRunnableVariable. Thus the component
does not need to use type casting to convert access to the Inter-
RunnableVariable data.
For details of the <return> value definition see section 5.2.6.6.
Please note that the Rte_IrvRead API Signature only has a
return value if the InterRunnableVariable is typed by a Primi-
tive Implementation Data Type or Redefinition Imple-
mentation Data Type redefining a Primitive Implementa-
tion Data Type.
[SWS_Rte_03562] d For the primitive type signature, the
Rte_IrvRead call shall return the value of the accessed Inter-
RunnableVariable. c(SRS_Rte_00142, SRS_Rte_00051)
For complex type signature, the Rte_IrvRead call does not return
any value (void).
Notes: The runnable entity name in the signature allows runnable context
specific optimizations.
The concept of InterRunnableVariables is explained in section
4.2.5.6. Further details about InterRunnableVariables with explicit
behavior are explained in Section 4.2.5.6.2.

5.6.27 Rte_IrvWrite

Purpose: Provide write access to the InterRunnableVariables with explicit be-

havior of an AUTOSAR SW-C.
Signature: [SWS_Rte_03565] d
void Rte_[Byps_]IrvWrite_<re>_<o>(
[IN RTE_Instance <instance>],
IN <data>)

Where <re> is the name of the runnable entity the API might be
used in, <o> is the name of the InterRunnableVariable to access
and <data> is the placeholder for the data the InterRunnableVari-
able shall be set to. [Byps_] is an optional infix used when com-
ponent wrapper method for bypass support is enabled for the related

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software component type (See chapter 4.9.2). c(SRS_BSW_00310,

SRS_Rte_00142)
Existence: [SWS_Rte_01306] d An Rte_IrvWrite API shall be created
for each written InterRunnableVariable using explicit access. c
(SRS_Rte_00142, SRS_Rte_00051)
[SWS_Rte_CONSTR_09090] Rte_IrvWrite API may only be
used by the runnable that describe its usage d The
Rte_IrvWrite API may only be used by the runnable that contains
the corresponding VariableAccess in the writtenLocalVari-
able role. c()
Description: The Rte_IrvWrite API provides write access to the InterRunnabl-
eVariables with explicit behavior within a component description.
The return value is unused. The return value is not required to pass
error information to the user because no inter-ECU communication is
involved and the value can always be written.
[SWS_Rte_03567] d The Rte_IrvWrite API call include the
IN parameter <data> to pass the data element to write. c
(SRS_Rte_00142, SRS_Rte_00051)
The IN parameter <data> is passed by value or reference accord-
ing to the ImplementationDataType as described in the section
5.2.6.5.
If the IN parameter <data> is passed by reference, the pointer must
remain valid until the API call returns.
Return Value: None.
Notes: The runnable entity name in the signature allows runnable context
specific optimizations.
The concept of InterRunnableVariables is explained in section
4.2.5.6. Further details about InterRunnableVariables with explicit
behavior are explained in Section 4.2.5.6.2.

5.6.28 Rte_Enter

Purpose: Enter an exclusive area.

Signature: [SWS_Rte_01120] d
void
Rte_[Byps_]Enter_[<re_>]<name>(
[IN Rte_Instance <instance>])

Where <re> is the runnable entity name, <name> is the exclusive

area name. The sub part in squared brackets [<re>_] is emitted

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if the attribute SwcExclusiveAreaPolicy.apiPrinciple is set

to "perExecutable". [Byps_] is an optional infix used when compo-
nent wrapper method for bypass support is enabled for the related
software component type (See chapter 4.9.2). c(SRS_BSW_00310,
SRS_Rte_00046, SRS_Rte_00115)
Existence: [SWS_Rte_01307] d An Rte_Enter API shall be created for each
ExclusiveArea that is declared and which has an canEnterExclu-
siveArea association. c(SRS_Rte_00115, SRS_Rte_00051)
Description: The Rte_Enter API call is invoked by an AUTOSAR software-
component to define the start of an exclusive area.
Return Value: None.
Notes: The RTE is not required to support nested invocations of Rte_Enter
for the same exclusive area.
[SWS_Rte_01122] d The RTE shall permit calls to Rte_Enter and
Rte_Exit to be nested as long as different exclusive areas are
exited in the reverse order they were entered. c(SRS_Rte_00046,
SRS_Rte_00032, SRS_Rte_00115)
[SWS_Rte_CONSTR_09028] Rte_Enter and Rte_Exit API may
only be used by runnables describing its usage d The
Rte_Enter and Rte_Exit API may only be used by Runnable Enti-
ties that contain a corresponding canEnterExclusiveArea association
c()
[SWS_Rte_CONSTR_09029] Nested call of Rte_Enter and
Rte_Exit is restricted d The Rte_Enter and Rte_Exit API may
only be called nested if different exclusive areas are invoked; in this
case exclusive areas shall exited in the reverse order they were en-
tered. c()
Within the AUTOSAR OS an attempt to lock a resource cannot fail
because the lock is already held. The lock attempt can only fail due
to configuration errors (e.g. caller not declared as accessing the re-
source) or invalid handle. Therefore the return type from this function
is void.

5.6.29 Rte_Exit

Purpose: Leave an exclusive area.

Signature: [SWS_Rte_01123] d
void
Rte_[Byps_]Exit_[<re_>]<name>(
[IN Rte_Instance <instance>])

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Where <re> is the runnable entity name, <name> is the exclusive

area name. The sub part in squared brackets [<re>_] is emitted
if the attribute SwcExclusiveAreaPolicy.apiPrinciple is set
to "perExecutable". [Byps_] is an optional infix used when compo-
nent wrapper method for bypass support is enabled for the related
software component type (See chapter 4.9.2). c(SRS_BSW_00310,
SRS_Rte_00046, SRS_Rte_00051)
Existence: [SWS_Rte_01308] d An Rte_Exit API shall be created for each
ExclusiveArea that is declared and which has an canEnterExclu-
siveArea association. c(SRS_Rte_00115, SRS_Rte_00051)
Description: The Rte_Exit API call is invoked by an AUTOSAR software-
component to define the end of an exclusive area.
Return Value: None.
Notes: The RTE is not required to support nested invocations of Rte_Exit
for the same exclusive area.
Requirement [SWS_Rte_01122] permits calls to Rte_Enter and
Rte_Exit to be nested as long as different exclusive areas are ex-
ited in the reverse order they were entered.

5.6.30 Rte_Mode

There exist two versions of the Rte_Mode API. Depending on the attribute enhanced-
ModeApi in the software component description there shall be provided different ver-
sions of this API (see also 5.6.31).
Purpose: Provides the currently active mode of a mode switch port.
Signature: [SWS_Rte_02628] d
<return>
Rte_[Byps_]Mode_<p>_<o>([IN Rte_Instance <instance>])

Where <p> is the port name, and <o> the ModeDeclara-

tionGroupPrototype name within the ModeSwitchInterface
categorizing the port. [Byps_] is an optional infix used when com-
ponent wrapper method for bypass support is enabled for the related
software component type (See chapter 4.9.2). c(SRS_Rte_00144)
Existence: [SWS_Rte_02629] d If a ModeAccessPoint exists and if the at-
tribute enhancedModeApi of the ModeSwitchSenderComSpec
resp. ModeSwitchReceiverComSpec is set to false or does not
exist a Rte_Mode API according to [SWS_Rte_02628] shall be gen-
erated. c(SRS_Rte_00147, SRS_Rte_00078)
[SWS_Rte_CONSTR_09030] Rte_Mode API may only be used by
the runnable that describe its usage d The Rte_Mode API may

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only be used by the runnable that contains the corresponding Mod-

eAccessPoint c()
Description: The Rte_Mode API tells the AUTOSAR software-component which
mode of a ModeDeclarationGroup of a given port is currently ac-
tive. This is the information that the RTE uses for the mode dis-
abling dependencys. A new mode will not be indicated imme-
diately after the reception of a mode switch notification from
a mode manager, see section 4.4.4. During mode transitions, i.e.
during the execution of runnables that are triggered on exiting one
mode or on entering the next mode, overlapping mode disablings
of two modes are active. In this case, the Rte_Mode will return
RTE_TRANSITION_<ModeDeclarationGroup>.
The Rte_Mode will return the same mode for all mode switch
ports that are connected to the same mode switch port of the
mode manager (see [SWS_Rte_02630]).
It is supported to have ModeAccessPoint(s) referring the provide
mode switch ports of the mode manager to provide access for
the mode manager on the information that the RTE uses for the
mode disabling dependencys.
Return Value: The return type of Rte_Mode is dependent on the Implementa-
tionDataType of the ModeDeclarationGroup. It shall return
the value of the ModeDeclarationGroupPrototype. The type
name shall be equal to the shortName of the Implementation-
DataType.
The return value of the Rte_Mode is used to inform the caller about
the current mode of the mode machine instance. The Rte_Mode
API shall return the following values:
[SWS_Rte_07666] d During a transition of the
mode machine instance, Rte_Mode shall return
RTE_TRANSITION_<ModeDeclarationGroup>, where
<ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup. c(SRS_Rte_00144)
[SWS_Rte_02660] d When the mode machine in-
stance is in a defined mode, Rte_Mode shall return
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>,
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup and <ModeDeclaration> is the short name
of the currently active ModeDeclaration. c(SRS_Rte_00144)
[SWS_Rte_06742] d The API Rte_Mode shall return
the value RTE_TRANSITION_<ModeDeclarationGroup>
for a mode machine instance assigned to the RTE
([SWS_Rte_07533]) until the RTE has been initialized and where

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<ModeDeclarationGroup> is the short name of the Mode-

DeclarationGroup. c(SRS_Rte_00144)
[SWS_Rte_06781] d If modeManagerErrorBehavior.errorRe-
actionPolicy is set to defaultMode the API Rte_Mode shall re-
turn the value RTE_TRANSITION_<ModeDeclarationGroup> for
a mode machine instance while the partition of the mode users
is stopped or restarting and until the RTE dequeues the next mode
switch notifications.
<ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup. c(SRS_Rte_00144) This indicates a transition
and therefore the behavior is identical as during the initialization of
the RTE (see [SRS_Rte_00144]).
[SWS_Rte_06782] d If the modeManagerErrorBe-
havior.errorReactionPolicy is set to lastMode,
the API enhanced Rte_Mode shall return the value
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the last mode for a mode machine instance while the partition
of the mode users is stopped or restarting and until the RTE
dequeues the next mode switch notifications.
<ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup. c(SRS_Rte_00144) This indicates a stable
mode during the re-initialization of the partition until the RTE is
capable to dequeue the first mode switch notification after
the partition restart.
[SWS_Rte_06743] d The Rte_Mode API shall return the values
according [SWS_Rte_07666] and [SWS_Rte_02660] for a common
mode machine instance already after initialization of the Basic
Software Scheduler. c(SRS_Rte_00144)
In inter partition mode management, RTE on the mode manager
sided partition might not have direct access to the state variables of
the mode machine instance.
[SWS_Rte_02732] d In inter partition mode management, the return
value of the Rte_Mode API to the mode manager shall be consis-
tent with the start of a transition by the Rte_Switch API and the
inter partition communication of the ModeSwitchedAckEvent. c
(SRS_Rte_00144, SRS_Rte_00210)
Notes: The Rte_Mode API may already indicate the next ModeDeclaration,
before the mode manager has picked up the ModeSwitchedAck-
Event with the Rte_SwitchAck. This is not in contradiction to
[SWS_Rte_02732].

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[SWS_Rte_06744] d The RTE shall support calls of Rte_Mode after

initialization of the Basic Software Scheduler but before the RTE is
initialized. c(SRS_Rte_00144)

5.6.31 Enhanced Rte_Mode

Purpose: Provides the currently active mode of a mode switch port. If the mode
machine instance is in transition additionally the values of the
previous and the next mode are provided.
Signature: [SWS_Rte_08500] d
<return>
Rte_[Byps_]Mode_<p>_<o>([IN Rte_Instance <instance>,]
OUT <previousmode>,
OUT <nextmode>)

Where <p> is the port name, and <o> the ModeDeclara-

tionGroupPrototype name within the ModeSwitchInterface
categorizing the port. [Byps_] is an optional infix used when com-
ponent wrapper method for bypass support is enabled for the related
software component type (See chapter 4.9.2). c(SRS_Rte_00144)
Existence: [SWS_Rte_08501] d The existence of a ModeAccessPoint given
that the attribute enhancedModeApi of the ModeSwitchSender-
ComSpec resp. ModeSwitchReceiverComSpec is set to true
shall result in the generation of a Rte_Mode API according to
[SWS_Rte_08500]. c(SRS_Rte_00147, SRS_Rte_00078)
[SWS_Rte_CONSTR_09031] Rte_Mode API may only be used by
the runnable that describe its usage d The Rte_Mode API may
only be used by the runnable that contains the corresponding Mod-
eAccessPoint c()
Description: The Rte_Mode API tells the AUTOSAR software-component which
mode of a ModeDeclarationGroup of a given port is currently ac-
tive. This is the information that the RTE uses for the mode dis-
abling dependencys. A new mode will not be indicated imme-
diately after the reception of a mode switch notification from
a mode manager, see section 4.4.4. During mode transitions, i.e.
during the execution of runnables that are triggered on exiting one
mode or on entering the next mode, overlapping mode disablings
of two modes are active. In this case, the Rte_Mode will return
RTE_TRANSITION_<ModeDeclarationGroup>. The parameter
<previousmode> than contains the mode currently being left,the
parameter <nextmode> the mode being entered.

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The Rte_Mode will return the same mode for all mode switch
ports that are connected to the same mode switch port of the
mode manager (see [SWS_Rte_02630]).
It is supported to have ModeAccessPoint(s) referring the provided
mode switch ports of the mode manager to provide access for
the mode manager on the information that the RTE uses for the
mode disabling dependencys.
Return Value: The return type of Rte_Mode is dependent on the Implementa-
tionDataType of the ModeDeclarationGroup. It shall return
the value of the ModeDeclarationGroupPrototype. The type
name shall be equal to the shortName of the Implementation-
DataType. The return value of the Rte_Mode and the parameters
<previousmode> and <nextmode> are used to inform the caller
about the current mode of the mode machine instance.
[SWS_Rte_08504] d During a transition of a mode machine in-
stance Rte_Mode shall return the following values
the return value shall be
RTE_TRANSITION_<ModeDeclarationGroup>,
<previousmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the mode being left,
<nextmode> shall contain the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the mode being entered,
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup and <ModeDeclaration> is the short name
of the ModeDeclaration. c(SRS_Rte_00144, SRS_Rte_00210)
[SWS_Rte_08505] d When the mode machine instance is in a
defined mode, Rte_Mode shall return the following values
the return value shall contain the value of
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>,
<previousmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
<nextmode> shall contain the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup and <ModeDeclaration> is the short name
of the currently active ModeDeclaration. c(SRS_Rte_00144)

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[SWS_Rte_06745] d The API enhanced Rte_Mode shall return the

following values for a mode machine instance assigned to the
RTE ([SWS_Rte_07533]) until the RTE has been initialized:
the return value shall be
RTE_TRANSITION_<ModeDeclarationGroup>,
<previousmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the initialMode of the ModeDeclarationGroup
<nextmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the initialMode of the ModeDeclarationGroup
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup. c(SRS_Rte_00144)
[SWS_Rte_06783] d If modeManagerErrorBehavior.error-
ReactionPolicy is set to defaultMode the API enhanced
Rte_Mode shall return the following values for a mode machine
instance while the partition of the mode users is stopped or restart-
ing and until the RTE dequeues the next mode switch notifica-
tions.
the return value shall be
RTE_TRANSITION_<ModeDeclarationGroup>,
<previousmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the modeUserErrorBehavior.defaultMode of the Mode-
DeclarationGroup
<nextmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the modeUserErrorBehavior.defaultMode of the Mode-
DeclarationGroup
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup. c(SRS_Rte_00144) This indicates a transition
from and to the defaultMode. If the defaultMode is identical to
the initialMode the behavior is identical as during the initialization
of the RTE (see [SRS_Rte_00144]).
[SWS_Rte_06784] d If the modeManagerErrorBehavior.er-
rorReactionPolicy is set to lastMode, the API enhanced
Rte_Mode shall return the following values for a mode machine
instance while the partition of the mode users is stopped or restart-
ing and until the RTE dequeues the next mode switch notifica-
tions.

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the return value shall be

RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the last mode,
<previousmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the last mode
<nextmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the last mode
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup. c(SRS_Rte_00144) This indicates a stable
mode during the re-initialization of the partition until the RTE is ca-
pable to dequeue the first mode switch notification after the
partition restart.
[SWS_Rte_06746] d The enhanced Rte_Mode API shall return the
values according [SWS_Rte_08504] and [SWS_Rte_08505] for a
common mode machine instance already after initialization of
the Basic Software Scheduler. c(SRS_Rte_00144)
In inter partition mode management, RTE on the mode manager
sided partition might not have direct access to the state variables of
the mode machine instance.
[SWS_Rte_08506] d In inter partition mode management, the return
value and the contents of the parameters <previousmode> and
<nextmode> of the Rte_Mode API to the mode manager shall be
consistent with the start of a transition by the Rte_Switch API and
the inter partition communication of the ModeSwitchedAckEvent.
c(SRS_Rte_00144, SRS_Rte_00210)
Notes: The Rte_Mode API may already indicate the next ModeDecla-
ration, before the mode manager has picked up the Mod-
eSwitchedAckEvent with the Rte_SwitchAck. This is not in con-
tradiction to [SWS_Rte_02732].
[SWS_Rte_06747] d The RTE shall support calls of the enhanced
Rte_Mode after initialization of the Basic Software Scheduler but be-
fore the RTE is initialized. c(SRS_Rte_00144)

5.6.32 Rte_Trigger

Purpose: Raise a external trigger of a trigger port.

Signature: [SWS_Rte_07200] d
signature without queuing support:

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void Rte_[Byps_]Trigger_<p>_<o>(
[IN Rte_Instance <instance>],
[OUT Rte_TransformerError transformerError])

signature with queuing support:

Std_ReturnType Rte_[Byps_]Trigger_<p>_<o>(
[IN Rte_Instance <instance>])

Where <p> is the port name and <o> the Trigger within the trigger
interface categorizing the port. [Byps_] is an optional infix used
when component wrapper method for bypass support is enabled for
the related software component type (See chapter 4.9.2).
The signature for queuing support shall be generated by the RTE
generator if the swImplPolicy of the associated Trigger is set to
queued. c(SRS_Rte_00162)
Data Transformation of external triggers is only supported for external
triggers without queueing support.
Existence: [SWS_Rte_07201] d The existence of a ExternalTriggering-
Point shall result in the generation of a Rte_Trigger API. c
(SRS_Rte_00162)
[SWS_Rte_05300] d The optional OUT parameter
transformerError of the API shall be generated if the Port-
Prototype of port <p> is referenced by a PortAPIOption which
has the attribute errorHandling set to transformerErrorHan-
dling. c(SRS_Rte_00249)
[SWS_Rte_CONSTR_09032] Rte_Trigger API may only be
used by the runnable that describe its usage d The Rte_Trigger
API may only be used by the runnable that contains the correspond-
ing ExternalTriggeringPoint. c()
Description: The Rte_Trigger API triggers an execution for all runnables whose
ExternalTriggerOccurredEvent is associated to the Trigger.
The OUT parameter transformerError contains the transformer
error which occurred during execution of the transformer chain. See
chapter 4.10.5.
Return Value: None in case of signature without queuing support.
[SWS_Rte_06720] d The Rte_Trigger API shall return the follow-
ing values:
RTE_E_OK if the trigger was successfully queued or if no queue
is configured
RTE_E_LIMIT if the trigger was not queued because the maxi-
mum queue size is already reached.

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in the case of signature with queuing support. c(SRS_Rte_00235)

5.6.33 Rte_IrTrigger

Purpose: Raise a internal trigger to activate Runnable entities of the same soft-
ware component instance.
Signature: [SWS_Rte_07203] d
signature without queuing support:
void Rte_[Byps_]IrTrigger_<re>_<o>(
[IN Rte_Instance <instance>])

signature with queuing support:

Std_ReturnType Rte_[Byps_]IrTrigger_<re>_<o>(
[IN Rte_Instance <instance>])

Where <re> is the name of the runnable entity the API might be
used in and <o> is the name of the InternalTriggeringPoint.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2).
The signature for queuing support shall be generated by the RTE
generator if the swImplPolicy of the associated InternalTrig-
geringPoint is set to queued. c(SRS_Rte_00163)
Existence: [SWS_Rte_07204] d The existence of a InternalTriggering-
Point shall result in the generation of a Rte_IrTrigger API. c
(SRS_Rte_00163)
[SWS_Rte_CONSTR_09033] Rte_IrTrigger API may only
be used by the runnable that describe its usage d The
Rte_IrTrigger API may only be used by the runnable that con-
tains the corresponding InternalTriggeringPoint. c()
Description: The Rte_IrTrigger triggers an execution for all runnables
whose InternalTriggerOccurredEvent is associated to the
InternalTriggeringPoint.
Return Value: None in case of signature without queuing support.
[SWS_Rte_06721] d The Rte_Trigger API shall return the follow-
ing values:
RTE_E_OK if the trigger was successfully queued or if no queue
is configured
RTE_E_LIMIT if the trigger was not queued because the maxi-
mum queue size is already reached.

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in the case of signature with queuing support. c(SRS_Rte_00235)

Notes: None.

5.6.34 Rte_IFeedback

Purpose: Provide access to acknowledgement notifications for implicit sender

receiver communication and to pass error notification to senders.
Signature: [SWS_Rte_07367] d
Std_ReturnType
Rte_[Byps_]IFeedback_<re>_<p>_<o> (
[IN RTE_Instance <instance>])

Where <re> is the runnable entity name, <p> the port name and <o>
the VariableDataPrototype within the sender-receiver interface
categorizing the port. [Byps_] is an optional infix used when com-
ponent wrapper method for bypass support is enabled for the related
software component type (See chapter 4.9.2). c(SRS_BSW_00310,
SRS_Rte_00122, SRS_Rte_00129, SRS_Rte_00185)
Existence: Note: according to [SWS_Rte_01283], acknowledgment is enabled
for a provided VariableDataPrototype by the existence of a
TransmissionAcknowledgementRequest in the SenderCom-
Spec.
[SWS_Rte_07646] d An Rte_IFeedback API shall be created for
a provided VariableDataPrototype if acknowledgment is en-
abled and the RunnableEntity has a VariableAccess in the
dataWriteAccess role referring to this VariableDataProto-
type. c(SRS_Rte_00122, SRS_Rte_00129, SRS_Rte_00185)
[SWS_Rte_07647] d An Rte_IFeedback API shall be created for a
provided VariableDataPrototype if acknowledgment is enabled
and a DataWriteCompletedEvent references the RunnableEn-
tity as well as the VariableAccess which in turn references the
VariableDataPrototype. c(SRS_Rte_00122, SRS_Rte_00129,
SRS_Rte_00185)
[SWS_Rte_07648] d If acknowledgment is enabled for a provided
VariableDataPrototype and a DataWriteCompletedEvent
references a runnable entity as well as the VariableAccess which
in turn references the VariableDataPrototype, the runnable en-
tity shall be activated when the transmission acknowledgment occurs
or when a timeout was detected by the RTE. See [SWS_Rte_07379].
c(SRS_Rte_00122, SRS_Rte_00129, SRS_Rte_00185)
[SWS_Rte_CONSTR_09000] Rte_IFeedback API may only be
used by the RunnableEntitys that describe its usage d The

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Rte_IFeedback API shall only be used by a RunnableEntity

that either has a VariableAccess in the dataWriteAccess role
referring to the VariableDataPrototype or is triggered by a
DataWriteCompletedEvent referring to the VariableAccess
which in turn references the VariableDataPrototype. c()
Description: The Rte_IFeedback API takes no parameters other than the in-
stance handle the return value is used to indicate the acknowledg-
ment status to the caller.
The Rte_IFeedback API applies only to implicit sender-receiver
communication.
The Rte_IFeedback API provides access to the transmission feed-
back of the data elements, declared as sent by a runnable using a
VariableAccess in the dataWriteAccess role, and sent after the
previous invocation of the runnable. The API function is guaranteed
to be have constant execution time and therefore can also be used
within category 1A runnable entities.
The required consistency access by a runnable can be provided by
copying of the status before the execution of the runnable so that it
cannot be modified by the RTE during the lifetime of the runnable
entity.
Return Value: The return value is used to indicate the status status and errors
detected by the RTE during execution of the Rte_IFeedback call.
[SWS_Rte_07374] d RTE_E_NO_DATA No acknowledgments
or error notifications were received from COM when the runn-
able entity was started. c(SRS_Rte_00094, SRS_Rte_00122,
SRS_Rte_00129, SRS_Rte_00185)
[SWS_Rte_07375] d RTE_E_COM_STOPPED (Inter-ECU com-
munication only) The last transmission was rejected (when the
local buffer was sent), with an RTE_E_COM_STOPPED return
code or an error notification was received from COM before
any timeout notification. c(SRS_Rte_00094, SRS_Rte_00122,
SRS_Rte_00129, SRS_Rte_00185)
[SWS_Rte_07650] d RTE_E_TIMEOUT (Inter-ECU only)
A timeout notification was received from COM before
any error notification. c(SRS_Rte_00094, SRS_Rte_00122,
SRS_Rte_00129, SRS_Rte_00185)
[SWS_Rte_07376] d RTE_E_TRANSMIT_ACK A transmission
acknowledgment was received. This error code is valid for both
inter-ECU and intra-ECU communication. c(SRS_Rte_00094,
SRS_Rte_00122, SRS_Rte_00129, SRS_Rte_00185)

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[SWS_Rte_07660] d RTE_E_UNCONNECTED Indicates

that the sender port is not connected. c(SRS_Rte_00094,
SRS_Rte_00122, SRS_Rte_00129, SRS_Rte_00185,
SRS_Rte_00139)
[SWS_Rte_08580] d RTE_E_HARD_TRANSFORMER_ERROR
The return value of one transformer in the transformer chain
represented a hard transformer error. c(SRS_Rte_00094,
SRS_Rte_00091)
[SWS_Rte_08581] d RTE_E_SOFT_TRANSFORMER_ERROR
The return value of at least one transformer in the transformer
chain was a soft error and no hard error occurred in the trans-
former chain. c(SRS_Rte_00094, SRS_Rte_00091)
The RTE_E_NO_DATA, RTE_E_TRANSMIT_ACK and
RTE_E_UNCONNECTED return values are not considered to be
an error but rather indicates correct operation of the API call.
[SWS_Rte_07651] d The initial return value of the
Rte_IFeedback API, when the runnable entity is executed before
any attempt to write some data shall be RTE_E_TRANSMIT_ACK.
c(SRS_Rte_00094, SRS_Rte_00122, SRS_Rte_00129,
SRS_Rte_00185)
[SWS_Rte_08074] d In case of multiple faults during a call
of Rte_IFeedback the resulting return value shall be de-
rived according to the following priority rules (highest prior-
ity first): (1) RTE_E_UNCONNECTED, (2) RTE_E_TIMEOUT, (3)
RTE_E_HARD_TRANSFORMER_ERROR, (4) RTE_E_COM_STOPPED,
(5) RTE_E_NO_DATA, (6) RTE_E_SOFT_TRANSFORMER_ERROR, (7)
RTE_E_TRANSMIT_ACK. c(SRS_Rte_00122)
Notes: See the notes for the Rte_Feedback API in section 5.6.8.

5.6.35 Rte_IsUpdated

Purpose: Provide access to the update flag for an explicit receiver.

Signature: [SWS_Rte_07390] d
boolean Rte_[Byps_]IsUpdated_<p>_<o>(
[IN RTE_Instance <instance>])

Where <p> is the port name and <o> the VariableDataPro-

totype within the sender-receiver interface categorizing the port.
[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_BSW_00310, SRS_Rte_00179)

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Existence: [SWS_Rte_07391] d An Rte_IsUpdated API shall be created for

a required VariableDataPrototype if a RunnableEntity has
a VariableAccess in the dataReceivePointByArgument or
dataReceivePointByValue role referring to the VariableDat-
aPrototype and the enableUpdate attribute is enabled in the
NonqueuedReceiverComSpec of the VariableDataPrototype.
c(SRS_Rte_00179)
[SWS_Rte_CONSTR_09034] Rte_IsUpdated API may only be
used by the runnable that describe the access to the corre-
sponding data d The Rte_IsUpdated API may only be used by
the runnable that contains the corresponding VariableAccess in
the dataReceivePointByArgument or dataReceivePointBy-
Value role. c()
Description: The Rte_IsUpdated API takes no parameters other than the in-
stance handle the return value is used to indicate if the Vari-
ableDataPrototype has been updated or not.
The Rte_IsUpdated API applies only to sender-receiver communi-
cation.
Return Value: The return value is used to indicate if the VariableDataProto-
type has been updated or not.
[SWS_Rte_07392] d TRUE Data element updated since last
read. c(SRS_Rte_00094, SRS_Rte_00179)
[SWS_Rte_07393] d FALSE Data element not updated since
last read. c(SRS_Rte_00094, SRS_Rte_00179)
Notes: None.

5.6.36 Rte_PBCon

Purpose: Provide access to the individual post-build artifacts of a Variation-

PointProxy for SWCs of a system containing different variants.
Signature: [SWS_Rte_08066] d
<return>
Rte_[Byps_]PBCon_<vpp> ()

Where <vpp> is the shortName of the VariationPointProxy.

[Byps_] is an optional infix used when component wrapper method
for bypass support is enabled for the related software component
type (See chapter 4.9.2). c(SRS_Rte_00191)
Existence: [SWS_Rte_08067] d A Rte_PBCon API shall be generated, if a
PostBuildVariantCriterion or at least one PostBuildVari-

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antCondition is defined for the VariationPointProxy. c

(SRS_Rte_00191)
Description: Depending on the category of the VariationPointProxy (see
Software Component Template [2]), the Rte_PBCon API provides ei-
ther access to the PostBuildVariantCriterion or to the result
of the evaluation of the PostBuildVariantConditions against
the PostBuildVariantCriterion.
Return Value: [SWS_Rte_08068] d For VariationPointProxys of category
VALUE the return value of Rte_PBCon shall be an integer value
yielding from the VariationPointProxy.postBuildValueAc-
cess.
The return type of Rte_PBCon shall be in this case conform with
the ImplementationDataType defined by VariationPoint-
Proxy.implementationDataType. c(SRS_Rte_00191)
[SWS_Rte_08069] d For VariationPointProxys of category
CONDITION the return value of Rte_PBCon shall be the result
of the evaluated expression P BExp: P BV arCon (VariationPoint-
V

Proxy.postBuildValueAccess = PostBuildVariantCondi-
tion.value), where PBVarCon is the set of all postBuild-
VariantConditions of the VariationPointProxy. If a pre-
build condition is defined in addition the return value shall be the
result of the evaluated expression P P BExp:VariationPoint-
V
Proxy.conditionAccess P BExp.
The return type of Rte_PBCon shall be in this case the Platform Type
boolean. c(SRS_Rte_00191)
Notes: [SWS_Rte_08070] d For VariationPointProxys of category
CONDITION that are using both conditionAccess and post-
BuildVariantCondition the RTE shall ensure in Rte_PBCon
that pre-build conditions have precedence over post-build conditions.
c(SRS_Rte_00191)
More details regarding Rte_PBCon API can be found in section 4.7.5.

5.7 Runnable Entity Reference

An AUTOSAR component defines one or more runnable entities. A runnable entity
is a piece of code with a single entry point and an associate set of data. A software-
component description provides definitions for each runnable entity within the software-
component.

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For components implemented using C or C++ the entry point of a runnable entity is
implemented by a function with global scope defined within a software-components
source code. The following sections consider the function signature and prototype.

5.7.1 Signature

The definition of all runnable entities, whatever the RTEEvent that triggers their exe-
cution, follows the same basic form.
[SWS_Rte_01126] d
<void|Std_ReturnType> [Byps_]<prefix><name>(
[IN Rte_Instance <instance>],
[IN Rte_ActivatingEvent_<name> <activation>],
[role parameters])

Where <name> 8 is the symbol describing the runnables entry point and <prefix> is
the optional SymbolProps.symbol attribute of the AtomicSwComponentType own-
ing the RunnableEntity, i.e. <prefix> will only appear if the attribute Symbol-
Props.symbol exists. The usage of Rte_ActivatingEvent is optional and de-
fined in [SWS_Rte_08051]. The definition of the role parameters is defined in Sec-
tion 5.7.3. [Byps_] is an optional infix used when component wrapper method for by-
pass support is enabled for the related software component type (See chapter 4.9.2).
c(SRS_Rte_00031, SRS_Rte_00011, SRS_Rte_00238)
Section 5.2.6.4 contains details on a recommended naming conventions for runnable
entities based on the RTEEvent that triggers the runnable entity. The recommended
naming convention makes explicit the functions that implement runnable entities as well
as clearly associating the runnable entity and the applicable data element or operation.

5.7.2 Entry Point Prototype

The RTE determines the required role parameters, and hence the prototype of the
entry point, for a runnable entity based on information in the input information. The
entry point defined in the component source must be compatible with the parameters
passed by the RTE when the runnable entity is triggered by the RTE and therefore the
RTE generator is required to emit a prototype for the function.
[SWS_Rte_01132] d The RTE generator shall emit a prototype for the runnable en-
titys entry point in the Application Header File. c(SRS_Rte_00087, SRS_Rte_00051,
SRS_Rte_00031)
8
Runnable entities have two names associated with them in the AUTOSAR Software Component
Template; the runnables identifier and the entry points symbol. The identifier is used to reference
the runnable entity within the input data and the symbol used within code to identify the runnables
implementation. In the context of a prototype for a runnable entity, name is the runnable entitys entry
point symbol.

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The prototype for a function implementing the entry point of a runnable entity is emitted
for both RTE Contract and RTE Generation phases. The function name for the
prototype is the runnable entitys entry point. The prototype of the entry point function
includes the runnable entitys instance handle and its role parameters, see Listing 5.1.
[SWS_Rte_07194] d The RTE Generator shall wrap each RunnableEntitys Entry
Point Prototype in the Application Header File with the Memory Mapping and Compiler
Abstraction macros.
1 #define [Byps_]<c>_START_SEC_<sadm>
2 #include "[Byps_]<c>_MemMap.h"
3
4 FUNC(<void|Std_ReturnType>, <c>_<sadm>) [Byps_]<prefix><name> (
5 [IN Rte_Instance <instance>],
6 [IN Rte_ActivatingEvent_<name> <activation>],
7 [role parameters]);
8
9 #define [Byps_]<c>_STOP_SEC_<sadm>
10 #include "[Byps_]<c>_MemMap.h"

where <c> is the shortName of the software component type,

<sadm> is the shortName of the referred swAddrMethod.
<prefix> is the optional SymbolProps.symbol attribute of the AtomicSwCompo-
nentType owning the RunnableEntity, i.e. <prefix> will only appear if the at-
tribute SymbolProps.symbol exists.
<name> is the attribute symbol describing the RunnableEntitys entry point.
The usage of Rte_ActivatingEvent is optional and defined in [SWS_Rte_08051].
The definition of the role parameters is defined in Section 5.7.3. The Memory Map-
ping macros could wrap several Entry Point Prototype if these are referring to the
same swAddrMethod. If RunnableEntity does not refer a swAddrMethod the
<sadm> is set to default CODE. [Byps_] is an optionnal infix used when compo-
nent wrapper method for bypass support is enabled for the related software compo-
nent type (See chapter 4.9.2). c(SRS_Rte_00148, SRS_Rte_00149, SRS_Rte_00238,
SRS_Rte_00011)
[SWS_Rte_06531] d The RTE Generator shall wrap each Entry Point Prototype in the
Application Header File of a variant existent RunnableEntity if the variability shall
be implemented. c(SRS_Rte_00201)
1 #if (<condition>)
2
3 <Entry Point Prototype>
4
5 #endif

where condition is the Condition Value Macro of the VariationPoint rel-

evant for the variant existence of the RunnableEntity (see table 4.20),
Entry Point Prototype is the code according an invariant Entry Point Pro-
totype (see also [SWS_Rte_01131], [SWS_Rte_07177], [SWS_Rte_02512],

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[SWS_Rte_01133], [SWS_Rte_01359], [SWS_Rte_01166], [SWS_Rte_01135],

[SWS_Rte_01137], [SWS_Rte_07207], [SWS_Rte_07208], [SWS_Rte_07379]).
[SWS_Rte_01016] d The function implementing the entry point of a runnable entity
shall define an instance handle as the first formal parameter if and only if the soft-
ware components supportsMultipleInstantiation attribute is set to TRUE. c
(SRS_Rte_00011, SRS_Rte_00031)
The RTE will ensure that when the runnable entity is triggered the instance handle pa-
rameter indicates the correct component instance. The remaining parameters passed
to the runnable entity depend on the RTEEvent that triggers execution of the runnable
entity.
Due to the global name space of a C Linker Locater symbols of RunnableEntitys
have to be unique in the ECU. When AtomicSwComponentTypes of several vendors
are integrated in the same ECU name clashes might occur if the same symbol is ac-
cidentally used twice. To ease the dissolving of name clashes the RTE supports an
abstraction of the RunnableEntity symbol in the implementation of the software
component.
[SWS_Rte_06713] d The RTE generator shall emit for each RunnableEntity a de-
fine for a symbolic name of the RunnableEntity.
1 #define RTE_RUNNABLE_<name> <prefix><symbol>

where <name> is the shortName of the RunnableEntity,

<prefix> is the optional SymbolProps.symbol attribute of the AtomicSwCompo-
nentType owning the RunnableEntity.
<symbol> is the attribute symbol describing the RunnableEntitys entry point.
c(SRS_Rte_00087, SRS_Rte_00051, SRS_Rte_00031)
This symbolic name of the RunnableEntity can be used as follows in the software
component implementation.

Example 5.30

For software component "HugeSwc" with a runnable "FOO" where the Symbol-
Props.symbol is set to "TinySwc" the Application Header File contains the definition:
1 /* Application Header File of HugeSwc*/
2 #define RTE_RUNNABLE_FOO TinySwcfoo

This can be used in the software components c file for the definition of the runnable:
1 /* software component c file */
2 RTE_RUNNABLE_FOO()
3 {
4 /* The algorithm of foo */
5 return;
6 }

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A change of the SymbolProps.symbol valued would have no effect on the c imple-

mentation of the software component but it would change the contract and the used
labels in a object code delivery.

In case that the RunnableEntity is mapped to BswModuleEntity the RTE Gener-

ator has to additionally respect the definitions in 6.3.2.3.4.

5.7.3 Role Parameters

The role parameters are optional and their presence and types depend on the RTE-
Event that triggers the execution of the runnable entity. The role parameters that are
necessary for each triggering RTEEvent are defined in Section 5.7.5.
[SWS_Rte_06703] d The RTE Generator shall name role parameters according to the
value of the symbol attribute of RunnableEntityArguments if RunnableEntit-
yArguments are defined for the related RunnableEntity and if no mapping to a
BswModuleEntry is defined. c(SRS_Rte_00087)
[SWS_Rte_06704] d The RTE Generator shall name role parameters according to the
shortName of the SwServiceArgs of the mapped BswModuleEntry if a mapping
of the RunnableEntity to a BswModuleEntry is defined. c(SRS_Rte_00087)
Please note that RunnableEntityArguments defined for a RunnableEntity
which is mapped to a BswModuleEntry are irrelevant.
[SWS_Rte_06705] d The RTE Generator shall generate nameless role parameters if
neither RunnableEntityArguments nor a mapping to a BswModuleEntry is de-
fined for the RunnableEntity. c(SRS_Rte_00087)
Further details about the mapping of RunnableEntitys and BswModuleEntry can
be found section "Synchronization with a Corresponding SWC" of the document [9]

5.7.4 Return Value

A function in C or C++ is required to have a return type. The RTE only uses the function
return value to return application error codes of a server operation.
[SWS_Rte_01130] d A function implementing a runnable entity entry point shall only
have the return type Std_ReturnType, if the runnable entity represents a server oper-
ation and the AUTOSAR interface description of that client server communication lists
potential application errors. All other functions implementing a runnable entity entry
point shall have a return type of void. c(SRS_Rte_00124, SRS_Rte_00031)
Note: If the potential application errors include RTE_E_OK, this shall also lead to a
return type of Std_ReturnType.

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[SWS_Rte_CONSTR_09045] The upper two bits of the of the server return value
are reserved d Only the least significant six bit of the return value of a server runnable
shall be used by the application to indicate an error. The upper two bit shall be zero. c
()
See also [SWS_Rte_02573].

5.7.5 Triggering Events

The RTE is the sole entity that can trigger the execution of a runnable entity. The RTE
triggers runnable entities in response to different RTEEvents.
The most basic RTEEvent that can trigger a runnable entity is the TimingEvent
that causes a runnable entity to be periodically triggered by the RTE. In contrast, the
remaining RTEEvents that can trigger runnable entities all occur as a result of com-
munication activity or as a result of mode switches.
The following subsections describe the conditions that can trigger execution of a runn-
able entity. For each triggering event the signature of the function (the entry point)
that implements the runnable entity is defined. The signature definition includes two
classes of parameters for each function;
1. The instance handle the parameter type is always Rte_Instance.
([SWS_Rte_01016])
2. The role parameters used to pass information required by the runnable entity
as a consequence of the triggering condition. The presence (and number) of role
parameters depends solely on the triggering condition.

5.7.5.1 TimingEvent

Purpose: Trigger a runnable entity periodically at a rate defined within the

software-component description.
Signature: [SWS_Rte_01131] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072)

5.7.5.2 BackgroundEvent

Purpose: A recurring RTEEvent which is used to perform background activi-

ties. It is similar to a TimingEvent but has no fixed time period and
is activated only with low priority.
Signature: [SWS_Rte_07177] d

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void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072)

5.7.5.3 SwcModeSwitchEvent

Purpose: Trigger of a runnable entity as a result of a mode switch. See also

sections 4.4.4 and 4.4.7 for reference.
Signature: [SWS_Rte_02512] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00143)

5.7.5.4 AsynchronousServerCallReturnsEvent

Purpose: Triggers a runnable entity used to collect the result and status infor-
mation of an asynchronous client-server operation.
Signature: [SWS_Rte_01133] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00029, SRS_Rte_00079)

Notes: The runnable entity triggered by an AsynchronousServerCall-
ReturnsEvent RTEEvent should use the Rte_Result API to ac-
tually receive the result and the status of the server operation.

5.7.5.5 DataReceiveErrorEvent

Purpose: Triggers a runnable entity used to collect the error status of a data
element with data semantics on the receiver side.
Signature: [SWS_Rte_01359] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00029, SRS_Rte_00079)

Notes: The runnable entity triggered by a DataReceiveErrorEvent RTE-
Event should use the Rte_IStatus API to actually read the status.

5.7.5.6 OperationInvokedEvent

Purpose: An RTEEvent that causes the RTE to trigger a runnable entity whose
entry point provides an implementation for a client-server operation.

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This event occurs in response to a received request from a client to

execute the operation.
Signature: [SWS_Rte_01166] d
<void|Std_ReturnType> <name>
([IN Rte_Instance <instance>],
[IN <portDefArg 1>, ...
IN <portDefArg n>],
[IN|INOUT|OUT] <param 1>, ...
[IN|INOUT|OUT] <param n>,
[IN Rte_TransformerError transformerError])

Where <portDefArg 1>, ..., <portDefArg n> represent the

port-defined argument values (see Section 4.3.2.4) and
<param 1>, ... <param n> indicates the operation IN, IN-
OUT and OUT parameters. c(SRS_Rte_00029, SRS_Rte_00079,
SRS_Rte_00072, SRS_Rte_00152)
The data type of each port defined argument is taken from the soft-
ware component template, as defined in valueType.
Note that the port-defined argument values are optional, depending
upon the servers internal behavior.
[SWS_Rte_07023] d The operation parameters
<param 1>, ... <param n> are the specified ArgumentDat-
aPrototypes of the ClientServerOperation that is associated
with the OperationInvokedEvent. The operation parameters
shall be ordered according to the ClientServerOperations
ordered list of the ArgumentDataPrototypes. c(SRS_Rte_00029,
SRS_Rte_00079, SRS_Rte_00072)
[SWS_Rte_07024] d If the ServerArgumentImplPolicy is set to
useArgumentType the data type of the <param> is derived from
the ArgumentDataPrototypes ImplementationDataType. c
(SRS_Rte_00029, SRS_Rte_00079, SRS_Rte_00072)
In case of [SWS_Rte_07024] the RunnableEntitys parameter are
equally typed as the parameter for the Rte_Call API described in
section 5.2.6.5
[SWS_Rte_08569] d The optional IN parameter
transformerError of the API shall be generated if the
PortPrototype of port <p> is referenced by a PortA-
PIOption which has the attribute errorHandling set to
transformerErrorHandling. c(SRS_Rte_00249)
The IN parameter transformerError contains the transformer er-
ror which occured during execution of the transformer chain. See
chapter 4.10.5. Because the runnable can only be triggered if the
error is no hard error, the error given here is always a soft error.

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Hard errors are notified via TransformerHardErrorEvents.

[SWS_Rte_07025] d If the ServerArgumentImplPolicy is set
to useArrayBaseType the data type of the <param> is de-
rived from the ArgumentDataPrototypes Implementation-
DataTypeElement specifying the base type of the array. c
(SRS_Rte_00029, SRS_Rte_00079, SRS_Rte_00072)
ServerArgumentImplPolicy is set to useArrayBaseType is
only applicable in case of ArgumentDataPrototypes which data
type is of category ARRAY.
Please note that [SWS_Rte_07025] results in the same C Data
Type as described in [SWS_Rte_07024] since the Rte API is typed
with the base type of the array as specified in [SWS_Rte_05107],
[SWS_Rte_05108] and [SWS_Rte_05109], in section 5.2.6.5.
[SWS_Rte_07026] d The RTE-Generator shall reject configura-
tions violating [constr_1297]. c(SRS_Rte_00029, SRS_Rte_00079,
SRS_Rte_00072, SRS_Rte_00018)
[SWS_Rte_07027] d If the ServerArgumentImplPolicy is set
to useVoid the data type of the <param> is set to void *
for any kind of data type. c(SRS_Rte_00029, SRS_Rte_00079,
SRS_Rte_00072)
It is considered an invalid configuration if ServerArgumentIm-
plPolicy uses void in case of primitive IN arguments. See [con-
str_1286] in Software Component Template specification.
[SWS_Rte_08800] d The RTE-Generator shall reject configurations
violating [constr_1286]. c(SRS_Rte_00079, SRS_Rte_00018)
[SWS_Rte_05193] d If the serverArgumentImplPolicy is set
to useArrayBaseType or useVoid the RTE shall cast the argu-
ments passed by Rte_Call() and Rte_Result() to the data
types defined by the runnable entity prototype. c(SRS_Rte_00029,
SRS_Rte_00079, SRS_Rte_00072)
Return Value: If the AUTOSAR interface description of the client server commu-
nication lists possible error codes, these are returned by the func-
tion using the return type Std_ReturnType. If no error codes
are defined for this interface, the return type shall be void (see
[SWS_Rte_01130]).
This means that even if a runnable entity implementing a server "only"
returns E_OK, application errors have to be defined. Else the return
types do not match.

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5.7.5.7 DataReceivedEvent

Purpose: A runnable entity triggered by the RTE to receive and process a signal
received on a sender-receiver interface.
Signature: [SWS_Rte_01135] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00028, SRS_Rte_00131,

SRS_Rte_00107)
Notes: The data or event is not passed as an additional parameter. Instead,
the previously described reception API should be used to access the
data/event. This approach permits the same signature for runnables
that are triggered by time (TimingEvent) or data reception.
Caution: For intra-ECU communication, the DataReceivedEvent
is fired after each completed write operation to the shared data. In
case of implicit access, write operation is considered to be completed
when the runnable ends. While for inter-ECU communication, the
DataReceivedEvent is fired by the RTE after a callback from COM
or LdCom due to data reception. Over a physical network, data is
commonly transmitted periodically and hence not only will the latency
and jitter of DataReceivedEvents vary depending on whether a
configuration uses intra or inter-ECU communication, but also the
number and frequency of these RTEEvents may change significantly.
This means that a TimingEvent should be used to periodically ac-
tivation of a runnable rather than relying on the periodic transmission
of data.

5.7.5.8 DataSendCompletedEvent

Purpose: A runnable entity triggered by the RTE to receive and process trans-
mit acknowledgment notifications.
Signature: [SWS_Rte_01137] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00122, SRS_Rte_00107)

Notes: The runnable entity triggered by a DataSendCompletedEvent
RTEEvent should use the Rte_Feedback API to actually receive
the status of the acknowledgment.

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5.7.5.9 ModeSwitchedAckEvent

Purpose: A runnable entity triggered by the RTE to receive and process mode
switched acknowledgment notifications.
Signature: [SWS_Rte_02758] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00122, SRS_Rte_00107)

Notes: The runnable entity triggered by an ModeSwitchedAckEvent
should use the Rte_SwitchAck API to actually receive the status
of the acknowledgment.

5.7.5.10 SwcModeManagerErrorEvent

Purpose: A runnable entity triggered by the RTE to react on errors occurring

during mode handling.
Signature: [SWS_Rte_06771] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00122, SRS_Rte_00107)

Notes:

5.7.5.11 ExternalTriggerOccurredEvent

Purpose: A runnable entity triggered by the RTE at the occurrence of an exter-

nal event.
Signature: [SWS_Rte_07207] d
void <name>([IN Rte_Instance <instance>],
[OUT Rte_TransformerError transformerError])

c(SRS_Rte_00162, SRS_Rte_00072)
[SWS_Rte_05301] d The optional OUT parameter
transformerError of the API shall be generated if the Port-
Prototype of port <p> is referenced by a PortAPIOption which
has the attribute errorHandling set to transformerErrorHan-
dling. c(SRS_Rte_00249)
The OUT parameter transformerError contains the transformer
error which occurred during execution of the transformer chain. See
chapter 4.10.5. Because the RunnableEntity can only be trig-
gered if the error is no hard error, the error given here is always a soft
error. Hard errors are notified via TransformerHardErrorEvents.

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Notes:

5.7.5.12 InternalTriggerOccurredEvent

Purpose: A runnable entity triggered by the RTE by an inter runnable trigger.

Signature: [SWS_Rte_07208] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00163, SRS_Rte_00072)
Notes:

5.7.5.13 DataWriteCompletedEvent

Purpose: A runnable entity triggered by the RTE to receive and process trans-
mit acknowledgment notifications for implicit communication.
Signature: [SWS_Rte_07379] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00122, SRS_Rte_00185)

Notes: The runnable entity triggered by a DataWriteCompletedEvent
RTEEvent should use the Rte_IFeedback API to actually receive
the status of the acknowledgment.

5.7.5.14 InitEvent

Purpose: A runnable entity triggered by the RTE for initialization.

Signature: [SWS_Rte_06748] d
void <name>([IN Rte_Instance <instance>])

c(SRS_Rte_00072, SRS_Rte_00240)
Notes: The runnable entity triggered by a InitEvent RTEEvent is sup-
posed to be used for initialization purposes, i.e. for starting and
restarting a partition. It is not guaranteed that all RunnableEn-
titys referenced by this InitEvent are executed before the regu-
lar RunnableEntitys are executed for the first time.

5.7.5.15 TransformerErrorEvent

Purpose: A RunnableEntity triggered by the RTE because a transforma-

tion error occurred during the transformation of a server runnables

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arguments or during the transformation of an external trigger event

(external trigger sink).
Signature: [SWS_Rte_08791] d
void <name>([IN Rte_Instance <instance>],
IN Rte_TransformerError transformerError)

c(SRS_Rte_00072, SRS_Rte_00249)
Notes: The RunnableEntity triggered by a TransformerHardEr-
rorEvent RTEEvent is supposed to be used for reaction on a
hard transformer error on the server side of a client/server co-
mumunication or in the external trigger sink. The IN parameter
transformerError contains the transformer error which occured
during execution of the transformer chain. See chapter 4.10.5.

5.7.6 Reentrancy

A runnable entity is declared within a software-component type. The RTE ensures

that concurrent activation of same instance of a runnable entity is only allowed if the
runnables attribute "canBeInvokedConcurrently" is set to TRUE (see Section 4.2.6).
When a software-component is multiple instantiated each separate instance has its
own instance of the runnable entities in the software-component. Whilst instances of a
software-component are independent, the runnable entities instances share the same
code ([SWS_Rte_03015]).

Example 5.31

Consider a component c1 with runnable entity re1 and entry point ep that is instanti-
ated twice on the same ECU.
The two instances of c1 each has a separate instance of re1. Software-component
instances are scheduled independently and therefore each instance of re1 could be
concurrently executing ep.

The potential for concurrent execution of runnable entities when multiple instances of
a software-component are created means that each entry point should be reentrant.

5.8 RTE Lifecycle API Reference

This section documents the API functions used to start and stop the RTE. RTE Lifecy-
cle API functions are not invoked from AUTOSAR software-components instead they
are invoked from other basic software module(s).

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5.8.1 Rte_Start

The API Rte_Start initializes the RTE itself.

Service name: Rte_Start
Syntax: Std_ReturnType Rte_Start(
void
)
Service ID[hex]: 0x70
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: Std_ReturnType RTE_E_OK: No error occurred.
RTE_E_LIMIT: An internal limit has been exceeded.
The allocation of a required resource has failed.
Description: Rte_Start is intended to allocate and initialize system resources and
communication resources used by the RTE.

Table 5.5: Rte_Start

5.8.1.1 Signature

[SWS_Rte_02569] d
Std_ReturnType Rte_Start(void)

c(SRS_BSW_00310, SRS_Rte_00116)

5.8.1.2 Existence

[SWS_Rte_01309] d The Rte_Start API is always created. c(SRS_Rte_00051)

5.8.1.3 Description

[SWS_Rte_CONSTR_09035] Rte_Start shall be called only once d Rte_Start

shall be called only once by the EcuStateManager from trusted OS context on a core
after the basic software modules required by RTE are initialized. c()
These modules include:
OS
COM
memory services
The Rte_Start API shall not be invoked from AUTOSAR software components.

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[SWS_Rte_CONSTR_09036] Rte_Start API may only be used after call of

SchM_Init d The Rte_Start API may only be used after the Basic Software Sched-
uler is initialized (after termination of the SchM_Init). c()
[SWS_Rte_CONSTR_09037] Rte_Start API shall be called on every core d
The Rte_Start API shall be called on every core that hosts AUTOSAR software-
components of the ECU. c()
[SWS_Rte_02585] d Rte_Start shall return within finite execution time it must not
enter an infinite loop. c(SRS_Rte_00116)
Rte_Start may be implemented as a function or a macro.

5.8.1.4 Return Value

If the allocation of a resource fails, Rte_Start shall return with an error.

[SWS_Rte_01261] d RTE_E_OK No error occurred. c(SRS_Rte_00094)
[SWS_Rte_01262] d RTE_E_LIMIT An internal limit has been exceeded. The
allocation of a required resource has failed. c(SRS_Rte_00094)

5.8.1.5 Notes

Rte_Start is declared in the lifecycle header file Rte_Main.h. The initialization of

AUTOSAR software-components takes place after the termination of Rte_Start and
is triggered by a mode change event on entering run state.

5.8.2 Rte_Stop

The API Rte_Stop finalizes the RTE itself.

Service name: Rte_Stop
Syntax: Std_ReturnType Rte_Stop(
void
)
Service ID[hex]: 0x71
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: Std_ReturnType RTE_E_OK: No error occurred.
RTE_E_LIMIT: A resource could not be released.
Description: Rte_Stop is used to finalize the RTE on the core it is called. This service
releases all system and communication resources allocated by the RTE
on that core.

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Table 5.6: Rte_Stop

5.8.2.1 Signature

[SWS_Rte_02570] d
Std_ReturnType Rte_Stop(void)

c(SRS_Rte_00116)

5.8.2.2 Existence

[SWS_Rte_01310] d The Rte_Stop API is always created. c(SRS_Rte_00051)

5.8.2.3 Description

[SWS_Rte_CONSTR_09038] Rte_Stop shall be called before BSW shutdown d

Rte_Stop shall be called by the EcuStateManager before the basic software modules
required by RTE are shut down. c()
These modules include:
OS
COM
memory services
Rte_Stop shall be called from trusted context and not by an AUTOSAR software com-
ponent.
[SWS_Rte_02584] d Rte_Stop shall return within finite execution time. c
(SRS_Rte_00116)
Rte_Stop may be implemented as a function or a macro.

5.8.2.4 Return Value

[SWS_Rte_01259] d RTE_E_OK No error occurred. c(SRS_Rte_00094)

[SWS_Rte_01260] d RTE_E_LIMIT a resource could not be released. c
(SRS_Rte_00094)

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5.8.2.5 Notes

Rte_Stop is declared in the lifecycle header file Rte_Main.h.

5.8.3 Rte_PartitionTerminated

The API Rte_PartitionTerminated indicates to the RTE that a partition is going

to be terminated, and the communication with the Partition shall be ignored.
Service name: Rte_PartitionTerminated_<PID>
Syntax: void Rte_PartitionTerminated_<PID>(
void
)
Service ID[hex]: 0x72
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: Rte_PartitionTerminated is intended to notify the RTE that a given parti-
tion is terminated or is being restarted.

Table 5.7: Rte_PartitionTerminated

5.8.3.1 Signature

[SWS_Rte_07330] d
void Rte_PartitionTerminated_<PID>(void)

c(SRS_Rte_00223)
Where <PID> is the name of the EcucPartition according to the ECU Configuration
Description [5].

5.8.3.2 Existence

[SWS_Rte_07331] d An Rte_PartitionTerminated API shall be created for every

Partition. c(SRS_Rte_00223)

5.8.3.3 Description

[SWS_Rte_CONSTR_09039] Rte_PartitionTerminated shall be called only

once d Rte_PartitionTerminated shall be called only once by the Protection-
Hook. c()

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Rte_PartitionTerminated may be implemented as a function or a macro.

[SWS_Rte_07334] d The treatments in Rte_PartitionTerminated shall be re-
stricted to the ones allowed in the context of a ProtectionHook. c(SRS_Rte_00223)
Since Rte_PartitionTerminated is called from the ProtectionHook context, it
should be as fast as possible. Moreover, it cannot be assumed any more that par-
tition local data including RTE data is consistent. Therefore, actions should be limited
to setting a flag. Actual cleanup needs to be deferred to another task.
The notification provided by Rte_PartitionTerminated can be used later by the
RTE to immediately return an error status when SW-Cs of other partitions tries to com-
municate with the stopped partition. See [SWS_Rte_02710] and [SWS_Rte_02709].
[SWS_Rte_07335] d Terminating an already terminated Partition shall be ignored. c
(SRS_Rte_00223)

5.8.3.4 Return Value

None.

5.8.3.5 Notes

Rte_PartitionTerminated is declared in the lifecycle header file Rte_Main.h.

5.8.4 Rte_PartitionRestarting

The API Rte_PartitionRestarting indicates to the RTE that a Partition is

going to be restarted and that the communication with the Partition shall be ignored.
Service name: Rte_PartitionRestarting_<PID>
Syntax: void Rte_PartitionRestarting_<PID>(
void
)
Service ID[hex]: 0x73
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: Rte_PartitionRestarting is intended to notify the RTE that a given parti-
tion is being restarted.
As Rte_PartitionTerminated, Rte_PartitionRestarting indicates that the
communication with the partition shall be ignored, but in case of
Rte_PartitionRestarting, the partition may be restarted later in the ECU
lifecycle.

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Table 5.8: Rte_PartitionRestarting

5.8.4.1 Signature

[SWS_Rte_07620] d
void Rte_PartitionRestarting_<PID>(void)

Where <PID> is the name of the EcucPartition according to the ECU Configuration
Description [5]. c(SRS_Rte_00223)

5.8.4.2 Existence

[SWS_Rte_07619] d An Rte_PartitionRestarting API shall be created for any

Partition which can be restarted (i.e. a Partition whose PartitionCanBeR-
estarted parameter is enabled). c(SRS_Rte_00223)

5.8.4.3 Description

[SWS_Rte_CONSTR_09040] Rte_PartitionRestarting shall be called only

onc d Rte_PartitionRestarting shall be called only once by the ProtectionHook.
c()
Rte_PartitionRestarting may be implemented as a function or a macro.
[SWS_Rte_07617] d The treatments in Rte_PartitionRestarting shall be re-
stricted to the ones allowed in the context of a ProtectionHook. c(SRS_Rte_00223)
Since Rte_PartitionRestarting is called from the ProtectionHook context, it
should be as fast as possible. It should be limited to setting a flag. Actual cleanup
should be deferred to another task.
[SWS_Rte_07622] d Restarting an already terminated Partition or restarting a
Partition during an ongoing restart shall be ignored. c(SRS_Rte_00223)

5.8.4.4 Return Value

None.

5.8.4.5 Notes

Rte_PartitionRestarting is declared in the lifecycle header file Rte_Main.h.

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5.8.5 Rte_RestartPartition

The API Rte_RestartPartition initializes the RTE resources allocated for a parti-
tion.
Service name: Rte_RestartPartition_<PID>
Syntax: Std_ReturnType Rte_RestartPartition_<PID>(
void
)
Service ID[hex]: 0x74
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: Std_ReturnType RTE_E_OK: No error occurred.
RTE_E_LIMIT: An internal limit has been exceeded.
The allocation of a required resource has failed.
Description: Rte_RestartPartition is intended to notify the RTE that a given partition
will be restarted.

Table 5.9: Rte_RestartPartition

5.8.5.1 Signature

[SWS_Rte_07188] d
Std_ReturnType Rte_RestartPartition_<PID>(void)

Where <PID> is the name of the EcucPartition according to the ECU Configuration
Description [5]. c(SRS_Rte_00224)

5.8.5.2 Existence

[SWS_Rte_07336] d An Rte_RestartPartition API shall be created for any Par-

tition which can be restarted (i.e. a Partition whose PartitionCanBeR-
estarted parameter is enabled). c(SRS_Rte_00224)

5.8.5.3 Description

[SWS_Rte_CONSTR_09041] Rte_RestartPartition shall be called from

RestartTask d Rte_RestartPartition shall be called only in the context of the
RestartTask of the given partition. c()
[SWS_Rte_07338] d Rte_RestartPartition shall return within finite execution
time it must not enter an infinite loop. c(SRS_Rte_00224)
Rte_RestartPartition may be implemented as a function or a macro.

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[SWS_Rte_07339] d The Rte_RestartPartition shall restore an initial RTE en-

vironment for the partition and re-activate communication with this partition. c
(SRS_Rte_00224)
This includes:
signal initial values,
modes,
queued events,
sequence counters.
[SWS_Rte_07340] d Rte_RestartPartition shall be ignored if the given
partition was not stopped before (with Rte_PartitionTerminated or
Rte_PartitionRestarting). c(SRS_Rte_00224)

5.8.5.4 Return Value

If the allocation of a resource fails, Rte_RestartPartition shall return with an

error.
[SWS_Rte_07341] d RTE_E_OK No error occurred. c(SRS_Rte_00224)
[SWS_Rte_07342] d RTE_E_LIMIT An internal limit has been exceeded. The
allocation of a required resource has failed. c(SRS_Rte_00224)

5.8.5.5 Notes

Rte_RestartPartition is declared in the lifecycle header file Rte_Main.h.

5.8.6 Rte_Init

The API Rte_Init schedules RunnableEntitys for initialization purpose.

Service name: Rte_Init_<InitContainer>
Syntax: void Rte_Init_<InitContainer>(
void
)
Service ID[hex]: 0x75
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None

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Description: Rte_Init is intended schedule RunnableEntitys for initialization purpose

which are mapped to the related RteInitializationRunnableBatch con-
tainer.

Table 5.10: Rte_Init

5.8.6.1 Signature

[SWS_Rte_06749] d
void Rte_Init_<InitContainer>(void)

Where <InitContainer> is the short name of the RteInitialization-

RunnableBatch container. c(SRS_Rte_00240)

5.8.6.2 Existence

[SWS_Rte_06750] d An Rte_Init API shall be created for each RteInitializa-

tionRunnableBatch container. c(SRS_Rte_00240)

5.8.6.3 Description

[SWS_Rte_06751] d An Rte_Init API shall invoke the RunnableEntitys which

are associated with an RTEEvent mapped to the related RteInitialization-
RunnableBatch container in the order defined by the RtePositionInTask param-
eters. c(SRS_Rte_00240)
[SWS_Rte_06752] d Rte_Init shall return within finite execution time it must not
enter an infinite loop. c(SRS_Rte_00240)
[SWS_Rte_06753] d Rte_Init shall be implemented as a function. c
(SRS_Rte_00240)
[SWS_Rte_CONSTR_09060] Rte_Init API may only be used after call of
Rte_Start d The Rte_Init API may only be used after the RTE is initialized (af-
ter termination of the Rte_Start). c()

5.8.6.4 Return Value

none

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5.8.6.5 Notes

Rte_Init is declared in the lifecycle header file Rte_Main.h.

5.8.7 Rte_StartTiming

The API Rte_StartTiming starts the triggering of recurrent events.

Service name: Rte_StartTiming
Syntax: void Rte_StartTiming(
void
)
Service ID[hex]: 0x76
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: Rte_StartTiming API is intended to release the activation of RunnableEn-
titys triggered by TimingEvents and BackgroundEvents after the last call
of a Rte_Init function.

Table 5.11: Rte_StartTiming

5.8.7.1 Signature

[SWS_Rte_06754] d
void Rte_StartTiming(void)

c(SRS_Rte_00240)

5.8.7.2 Existence

[SWS_Rte_06755] d An Rte_StartTiming API shall be created if any Rte_Init

API is created. c(SRS_Rte_00240)

5.8.7.3 Description

[SWS_Rte_06756] d Rte_StartTiming API shall release the activation of

RunnableEntitys triggered by TimingEvents and BackgroundEvents. c
(SRS_Rte_00240)
See as well [SWS_Rte_06759] and [SWS_Rte_06760].

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[SWS_Rte_06757] d Rte_StartTiming shall return within finite execution time it

must not enter an infinite loop. c(SRS_Rte_00240)
[SWS_Rte_06758] d Rte_StartTiming shall be implemented as a function. c
(SRS_Rte_00240)
[SWS_Rte_CONSTR_09061] Rte_StartTiming API may only be used after call
of Rte_Start d The Rte_StartTiming API may only be used after the RTE is
initialized (after termination of the Rte_Start). c()

5.8.7.4 Return Value

none

5.8.7.5 Notes

Rte_StartTiming is declared in the lifecycle header file Rte_Main.h.

5.9 RTE Call-backs Reference

This section documents the call-backs that are generated by the RTE that must be
invoked by other components, such as the communication service, and therefore must
have a well-defined name and semantics.
[SWS_Rte_01165] d A call-back implementation created by the RTE generator is not
permitted to block. c(SRS_Rte_00022)
Requirement [SWS_Rte_01165] serves to constrain RTE implementations so that all
implementations can work with all basic software.

5.9.1 RTE-COM Message Naming Conventions

The COM signals used for communication are defined in the input information provided
by Com.
[SWS_Rte_03007] d The RTE shall initiate an inter-ECU transmission using the COM
API with the handle id of the corresponding COM signal for primitive data element
SenderReceiverToSignalMapping. c(SRS_Rte_00019)
[SWS_Rte_03008] d The RTE shall initiate an inter-ECU transmission using the COM
API with the handle id of the corresponding COM signal group for composite data
elements or operation arguments SenderReceiverToSignalGroupMapping. c
(SRS_Rte_00019)

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5.9.2 Communication Service Call-backs

Purpose: Implement the call-back functions that AUTOSAR COM / LdCom in-
vokes as a result of inter-ECU communication, where:
A data item/event is ready for reception by a receiver.
A transmission acknowledgment shall be routed to a sender.
An operation shall be invoked by a server.
The result of an operation is ready for reading by a client.
Signature: [SWS_Rte_03000] d
void <CallbackRoutineName> (void);

c(SRS_Rte_00019)
Where <CallbackRoutineName> is the name of the call-back func-
tion.
Description: Prototypes for the call-back <CallbackRoutineName> provided by
AUTOSAR COM / LdCom.
Return Value: No return value : void
In the following sections, the naming convention of <CallBackRoutineName> are
defined:

5.9.2.1 Call-backs for communication over AUTOSAR COM

5.9.2.1.1 Rte_COMCbk_<sn>

Service name: Rte_COMCbk_<sn>

Syntax: void Rte_COMCbk_<sn>(
void
)
Service ID[hex]: 0x9f
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the signal of the primitive data item/
event is ready for reception.

Table 5.12: Rte_COMCbk_sn

[SWS_Rte_03001] d
void Rte_COMCbk_<sn>(void)

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where <sn> is the name of the COM signal. c(SRS_Rte_00019)

This callback function indicates that the signal of the primitive data item/event is ready
for reception by a receiver.
Configured in Com: ComNotification [ECUC_Com_00498] as part of ComSignal

5.9.2.1.2 Rte_COMCbkTAck_<sn>

Service name: Rte_COMCbkTAck_<sn>

Syntax: void Rte_COMCbkTAck_<sn>(
void
)
Service ID[hex]: 0x90
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the signal of the primitive data item/
event is already handed over by COM to the PDU router.

Table 5.13: Rte_COMCbkTAck_sn

[SWS_Rte_03002] d
void Rte_COMCbkTAck_<sn>(void)

where <sn> is the name of the COM signal. c(SRS_Rte_00019, SRS_Rte_00122)

TAck is literal text indicating transmission acknowledgment. This callback function is
used to route a transmission acknowledgment of a primitve data item/event to a sender.
Configured in Com: ComNotification [ECUC_Com_00498] as part of ComSignal

5.9.2.1.3 Rte_COMCbkTErr_<sn>

Service name: Rte_COMCbkTErr_<sn>

Syntax: void Rte_COMCbkTErr_<sn>(
void
)
Service ID[hex]: 0x91
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None

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Description: This callback function indicates that an error occurred when the signal
of the primitive data item/event was handed over by COM to the PDU
router.

Table 5.14: Rte_COMCbkTErr_sn

[SWS_Rte_03775] d
void Rte_COMCbkTErr_<sn>(void)

where <sn> is the name of the COM signal. c(SRS_Rte_00019, SRS_Rte_00122)

TErr is literal text indicating transmission error. This callback function is used to route
a transmission error notification of a primitve data item/event to a sender.
Configured in Com: ComErrorNotification [ECUC_Com_00499] as part of Com-
Signal

5.9.2.1.4 Rte_COMCbkInv_<sn>

Service name: Rte_COMCbkInv_<sn>

Syntax: void Rte_COMCbkInv_<sn>(
void
)
Service ID[hex]: 0x92
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that COM has received a signal and
parsed it as "invalid".

Table 5.15: Rte_COMCbkInv_sn

[SWS_Rte_02612] d
void Rte_COMCbkInv_<sn>(void)

where <sn> is the name of the COM signal. c(SRS_Rte_00019, SRS_Rte_00122)

Inv is literal text indicating signal invalidation. This callback function is used to route
a signal invalidation of a primitive data item to a receiver.
Configured in Com: ComInvalidNotification [ECUC_COM_00315] as part of
ComSignal

5.9.2.1.5 Rte_COMCbkRxTOut_<sn>

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Service name: Rte_COMCbkRxTOut_<sn>

Syntax: void Rte_COMCbkRxTOut_<sn>(
void
)
Service ID[hex]: 0x93
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the aliveTimeout after the last suc-
cessful reception of the signal of the primitive data item/event has expired
(data element outdated).

Table 5.16: Rte_COMCbkRxTOut_sn

[SWS_Rte_02610] d
void Rte_COMCbkRxTOut_<sn>(void)

where <sn> is the name of the COM signal. c(SRS_Rte_00019, SRS_Rte_00147)

RxTOut is literal text indicating reception signal time out. This callback function is
used to indicate that a signal of a primitve data item is outdated and no new data is
available.
Configured in Com: ComTimeoutNotification [ECUC_Com_00552] as part of
ComSignal

5.9.2.1.6 Rte_COMCbkTxTOut_<sn>

Service name: Rte_COMCbkTxTOut_<sn>

Syntax: void Rte_COMCbkTxTOut_<sn>(
void
)
Service ID[hex]: 0x94
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the timeout of TransmissionAcknowl-
edgementRequest for sending the signal of the primitive data item/event
has expired.

Table 5.17: Rte_COMCbkTxTOut_sn

[SWS_Rte_05084] d

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void Rte_COMCbkTxTOut_<sn>(void)

where <sn> is the name of the COM signal. c(SRS_Rte_00019, SRS_Rte_00122)

TxTOut is literal text indicating transmission failure and time out. This callback func-
tion is used to indicate that transmission has failed and timed out for a primitve data
item.
Configured in Com: ComTimeoutNotification [ECUC_Com_00552] as part of
ComSignal

5.9.2.1.7 Rte_COMCbk_<sg>

Service name: Rte_COMCbk_<sg>

Syntax: void Rte_COMCbk_<sg>(
void
)
Service ID[hex]: 0x95
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the signals of the composite data
item/event or the arguments of an operation are ready for reception.

Table 5.18: Rte_COMCbk_sg

[SWS_Rte_03004] d
void Rte_COMCbk_<sg>(void)

where <sg> is the name of the COM signal group, which contains all the signals of the
composite data item/event or an operation. c(SRS_Rte_00019)
This callback function indicates that the signals of the composite data item/event or the
arguments of an operation are ready for reception.
Configured in Com: ComNotification [ECUC_Com_00498] as part of ComSig-
nalGroup

5.9.2.1.8 Rte_COMCbkTAck_<sg>

Service name: Rte_COMCbkTAck_<sg>

Syntax: void Rte_COMCbkTAck_<sg>(
void
)
Service ID[hex]: 0x96
Sync/Async: Synchronous

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Reentrancy: Non Reentrant

Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the signals of the composite data
item/event is already handed over by COM to the PDU router.

Table 5.19: Rte_COMCbkTAck_sg

[SWS_Rte_03005] d
void Rte_COMCbkTAck_<sg>(void)

where <sg> is the name of the COM signal group, which contains all the signals of the
composite data item/event or an operation. c(SRS_Rte_00019, SRS_Rte_00122)
TAck is literal text indicating transmission acknowledgment. This callback function
indicates that the signals of the composite data item/event is already handed over by
COM to the PDU router.
Configured in Com: ComNotification [ECUC_Com_00498] as part of ComSig-
nalGroup

5.9.2.1.9 Rte_COMCbkTErr_<sg>

Service name: Rte_COMCbkTErr_<sg>

Syntax: void Rte_COMCbkTErr_<sg>(
void
)
Service ID[hex]: 0x97
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that an error occurred when the signal
of the composite data item/event was handed over by COM to the PDU
router.

Table 5.20: Rte_COMCbkTErr_sg

[SWS_Rte_03776] d
void Rte_COMCbkTErr_<sg>(void)

where <sg> is the name of the COM signal group, which contains all the signals of the
composite data item/event or an operation. c(SRS_Rte_00019, SRS_Rte_00122)

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 Specification of RTE
AUTOSAR CP Release 4.3.0

TErr is literal text indicating transmission error. This callback function indicates that
an error occurred when the signal of the composite data item/event was handed over
by COM to the PDU router.
Configured in Com: ComErrorNotification [ECUC_Com_00499] as part of
ComSignalGroup

5.9.2.1.10 Rte_COMCbkInv_<sg>

Service name: Rte_COMCbkInv_<sg>

Syntax: void Rte_COMCbkInv_<sg>(
void
)
Service ID[hex]: 0x98
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that COM has received a signal group
and parsed it as "invalid".

Table 5.21: Rte_COMCbkInv_sg

[SWS_Rte_05065] d
void Rte_COMCbkInv_<sg>(void)

where <sg> is the name of the COM signal group, which contains all the signals of the
composite data item/event or an operation. c(SRS_Rte_00019, SRS_Rte_00122)
Inv is literal text indicating signal group invalidation. This callback function indicates
that COM has received a signal group and parsed it as invalid.
Configured in Com: ComInvalidNotification [ECUC_Com_00315] as part of
ComSignalGroup

5.9.2.1.11 Rte_COMCbkRxTOut_<sg>

Service name: Rte_COMCbkRxTOut_<sg>

Syntax: void Rte_COMCbkRxTOut_<sg>(
void
)
Service ID[hex]: 0x99
Sync/Async: Synchronous
Reentrancy: Non Reentrant

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Parameters (in): None

Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the aliveTimeout after the last suc-
cessful reception of the signal group carrying the composite data item
has expired (data element outdated).

Table 5.22: Rte_COMCbkRxTOut_sg

[SWS_Rte_02611] d
void Rte_COMCbkRxTOut_<sg>(void)

where <sg> is the name of the COM signal group, which contains all the signals of the
composite data item/event or an operation. c(SRS_Rte_00019, SRS_Rte_00147)
RxTOut is literal text indicating reception signal time out. This callback function indi-
cates that the aliveTimeout after the last successful reception of the signal group
carrying the composite data item has expired (data element outdated).
Configured in Com: ComTimeoutNotification [ECUC_Com_00552] as part of
ComSignalGroup

5.9.2.1.12 Rte_COMCbkTxTOut_<sg>

Service name: Rte_COMCbkTxTOut_<sg>

Syntax: void Rte_COMCbkTxTOut_<sg>(
void
)
Service ID[hex]: 0x9a
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This callback function indicates that the timeout of TransmissionAcknowl-
edgementRequest for sending the signal group of the composite data
item/event has expired.

Table 5.23: Rte_COMCbkTxTOut_sg

[SWS_Rte_05085] d
void Rte_COMCbkTxTOut_<sg>(void)

where <sg> is the name of the COM signal group, which contains all the signals of the
composite data item/event or an operation. c(SRS_Rte_00019, SRS_Rte_00122)

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 Specification of RTE
AUTOSAR CP Release 4.3.0

TxTOut is literal text indicating transmission failure and time out. This callback func-
tion indicates that the timeout of TransmissionAcknowledgementRequest for
sending the signal group of the composite data item/event has expired.
Configured in Com: ComTimeoutNotification [ECUC_Com_00552] as part of
ComSignalGroup

5.9.2.2 Call-backs for communication over AUTOSAR LdCom

[SWS_Rte_01412] d The RTE shall import the following type from

ComStack_Types.h:
BufReq_ReturnType
PduIdType
PduInfoType
PduLengthType
RetryInfoType
c(SRS_BSW_00384)

5.9.2.2.1 Rte_LdComCbkRxIndication_<sn>

Service name: Rte_LdComCbkRxIndication_<sn>

Syntax: void Rte_LdComCbkRxIndication_<sn>(
const PduInfoType* PduInfoPtr
)
Service ID[hex]: 0xA0
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): PduInfoPtr Contains the length (SduLength) of the received
PDU, a pointer to a buffer (SduDataPtr) containing
the PDU, and the MetaData related to this PDU.
Parameters (inout): None
Parameters (out): None
Return value: None
Description: Indication of a received PDU from a lower layer communication interface
module.

Table 5.24: Rte_LdComCbkRxIndication_sn

[SWS_Rte_01395] d
void Rte_LdComCbkRxIndication_<sn> (
IN const PduInfoType* info
);

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246)

It is configured in LdCom:
LdComRxIndication [ECUC_LdCom_00014] as part of LdComIPdu

5.9.2.2.2 Rte_LdComCbkStartOfReception_<sn>

Service name: Rte_LdComCbkStartOfReception_<sn>

Syntax: BufReq_ReturnType Rte_LdComCbkStartOfReception_<sn>(
const PduInfoType* info,
PduLengthType TpSduLength,
PduLengthType* bufferSizePtr
)
Service ID[hex]: 0xA1
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): info Pointer to a PduInfoType structure containing the
payload data (without protocol information) and pay-
load length of the first frame or single frame of a
transport protocol I-PDU reception, and the Meta-
Data related to this PDU. If neither first/single frame
data nor MetaData are available, this parameter is
set to NULL_PTR.
TpSduLength Total length of the N-SDU to be received.
Parameters (inout): None
Parameters (out): bufferSizePtr Available receive buffer in the receiving module.
This parameter will be used to compute the Block
Size (BS) in the transport protocol module.
Return value: BufReq_ReturnType BUFREQ_OK: Connection has been accepted.
bufferSizePtr indicates the available receive buffer;
reception is continued. If no buffer of the requested
size is available, a receive buffer size of 0 shall be
indicated by bufferSizePtr.
BUFREQ_E_NOT_OK: Connection has been re-
jected; reception is aborted. bufferSizePtr remains
unchanged.
BUFREQ_E_OVFL: No buffer of the required length
can be provided; reception is aborted. bufferSizePtr
remains unchanged.
Description: This function is called at the start of receiving an N-SDU. The N-SDU
might be fragmented into multiple N-PDUs (FF with one or more following
CFs) or might consist of a single N-PDU (SF). The service shall provide
the currently available maximum buffer size when invoked with TpSdu-
Length equal to 0.

Table 5.25: Rte_LdComCbkStartOfReception_sn

[SWS_Rte_01396] d
BufReq_ReturnType Rte_LdComCbkStartOfReception_<sn> (
IN const PduInfoType* SduInfoPtr,
IN PduLengthType SduLength,

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 Specification of RTE
AUTOSAR CP Release 4.3.0

OUT PduLengthType* RxBufferSizePtr

)

Where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246)

It is configured in LdCom:
LdComRxStartOfReception [ECUC_LdCom_00015] as part of LdComIPdu
[SWS_Rte_01397] d The Rte_LdComCbkStartOfReception_<sn> Call back shall
return BUFREQ_OK when connection has been accepted. RxBufferSizePtr indi-
cates the available receive buffer. c(SRS_Rte_00246)
[SWS_Rte_01398] d The Rte_LdComCbkStartOfReception_<sn> Call back shall
return BUFREQ_E_NOT_OK when connection has been rejected. RxBufferSizePtr
remains unchanged. c(SRS_Rte_00246)
[SWS_Rte_01399] d The Rte_LdComCbkStartOfReception_<sn> Call back
shall return BUFREQ_E_OVFL when configured buffer size as specified via
ComPduIdRef.PduLength is smaller than TpSduLength. c(SRS_Rte_00246)

5.9.2.2.3 Rte_LdComCbkCopyRxData_<sn>

Service name: Rte_LdComCbkCopyRxData_<sn>

Syntax: BufReq_ReturnType Rte_LdComCbkCopyRxData_<sn>(
const PduInfoType* info,
PduLengthType* bufferSizePtr
)
Service ID[hex]: 0xA2
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): info Provides the source buffer (SduDataPtr) and the
number of bytes to be copied (SduLength).
An SduLength of 0 can be used to query the current
amount of available buffer in the upper layer mod-
ule. In this case, the SduDataPtr may be a NULL_
PTR.
Parameters (inout): None
Parameters (out): bufferSizePtr Available receive buffer after data has been copied.
Return value: BufReq_ReturnType BUFREQ_OK: Data copied successfully
BUFREQ_E_NOT_OK: Data was not copied be-
cause an error occurred.
Description: This function is called to provide the received data of an I-PDU segment
(N-PDU) to the upper layer.
Each call to this function provides the next part of the I-PDU data.
The size of the remaining data is written to the position indicated by
bufferSizePtr.

Table 5.26: Rte_LdComCbkCopyRxData_sn

[SWS_Rte_01400] d

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 Specification of RTE
AUTOSAR CP Release 4.3.0

BufReq_ReturnType Rte_LdComCbkCopyRxData_<sn> (
IN const PduInfoType* SduInfoPtr,
OUT PduLengthType* RxBufferSizePtr
)

Where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246)

It is configured in LdCom:
LdComRxCopyRxData [ECUC_LdCom_00013] as part of LdComIPdu
[SWS_Rte_01401] d The Rte_LdComCbkCopyRxData_<sn> Call back shall return
BUFREQ_OK when data has been copied to the receive buffer completely as requested.
c(SRS_Rte_00246)
[SWS_Rte_01402] d The Rte_LdComCbkCopyRxData_<sn> Call back shall re-
turn BUFREQ_E_NOT_OK when data has not been copied. Request failed. c
(SRS_Rte_00246)

5.9.2.2.4 Rte_LdComCbkTpRxIndication_<sn>

Service name: Rte_LdComCbkTpRxIndication_<sn>

Syntax: void Rte_LdComCbkTpRxIndication_<sn>(
Std_ReturnType result
)
Service ID[hex]: 0xA3
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): result Result of the reception.
Parameters (inout): None
Parameters (out): None
Return value: None
Description: Called after an I-PDU has been received via the TP API, the result indi-
cates whether the transmission was successful or not.

Table 5.27: Rte_LdComCbkTpRxIndication_sn

[SWS_Rte_01403] d
void Rte_LdComCbkTpRxIndication_<sn> (
IN Std_ReturnType Result
)

where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246)

It is configured in LdCom:
LdComTpRxIndication [ECUC_LdCom_00016] as part of LdComIPdu

5.9.2.2.5 Rte_LdComCbkCopyTxData_<sn>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Service name: Rte_LdComCbkCopyTxData_<sn>

Syntax: BufReq_ReturnType Rte_LdComCbkCopyTxData_<sn>(
const PduInfoType* info,
RetryInfoType* retry,
PduLengthType* availableDataPtr
)
Service ID[hex]: 0xA4
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): info Provides the destination buffer (SduDataPtr) and
the number of bytes to be copied (SduLength).
If not enough transmit data is available, no data is
copied by the upper layer module and BUFREQ_E_
BUSY is returned. The lower layer module may retry
the call.
An SduLength of 0 can be used to indicate state
changes in the retry parameter or to query the cur-
rent amount of available data in the upper layer mod-
ule. In this case, the SduDataPtr may be a NULL_
PTR.
retry Will not be handled by LdCom and its upper layer.
Parameters (inout): None
Parameters (out): availableDataPtr Indicates the remaining number of bytes that are
available in the upper layer modules Tx buffer. avail-
ableDataPtr can be used by TP modules that sup-
port dynamic payload lengths (e.g. FrIsoTp) to de-
termine the size of the following CFs.
Return value: BufReq_ReturnType BUFREQ_OK: Data has been copied to the transmit
buffer completely as requested.
BUFREQ_E_BUSY: Request could not be fulfilled,
because the required amount of Tx data is not avail-
able. The lower layer module may retry this call later
on. No data has been copied.
BUFREQ_E_NOT_OK: Data has not been copied.
Request failed.
Description: This function is called to acquire the transmit data of an I-PDU segment
(N-PDU).
Each call to this function provides the next part of the I-PDU data unless
retry->TpDataState is TP_DATARETRY. In this case the function restarts
to copy the data beginning at the offset from the current position indicated
by retry->TxTpDataCnt. The size of the remaining data is written to the
position indicated by availableDataPtr

Table 5.28: Rte_LdComCbkCopyTxData_sn

[SWS_Rte_01404] d
BufReq_ReturnType Rte_LdComCbkCopyTxData_<sn> (
IN const PduInfoType* SduInfoPtr,
IN RetryInfoType* RetryInfoPtr,
OUT PduLengthType* TxDataCntPtr
)

Where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246)

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 Specification of RTE
AUTOSAR CP Release 4.3.0

It is configured in LdCom:
LdComTxCopyTxData [ECUC_LdCom_00018] as part of LdComIPdu
[SWS_Rte_01405] d The Rte_LdComCbkCopyTxData_<sn> Call back shall return
BUFREQ_OK when data has been copied to the receive buffer completely as requested.
c(SRS_Rte_00246)
[SWS_Rte_01406] d The Rte_LdComCbkCopyTxData_<sn> Call back shall return
BUFREQ_E_NOT_OK when data has not been copied to the receive buffer completely
as requested. c(SRS_Rte_00246)
Possible Request failure are:
in case the provided I-PDU ID is wrong
in case the corresponding I-PDU is stopped
in case the RetryInfoPtr->TpDataState is TP_DATARETRY and the offset
RetryInfoPtr->TxTpDataCnt exceeds the current position

5.9.2.2.6 Rte_LdComCbkTpTxConfirmation_<sn>

Service name: Rte_LdComCbkTpTxConfirmation_<sn>

Syntax: void Rte_LdComCbkTpTxConfirmation_<sn>(
Std_ReturnType result
)
Service ID[hex]: 0xA5
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): result E_OK - transmission successful
E_NOT_OK - transmission not successful
Parameters (inout): None
Parameters (out): None
Return value: None
Description: This function is called after a Signal has been transmitted via the TP-API
on its network.

Table 5.29: Rte_LdComCbkTpTxConfirmation_sn

[SWS_Rte_01407] d
void Rte_LdComCbkTpTxConfirmation_<sn> (
IN Std_ReturnType Result
)

where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246, SRS_Com_02044)

It is configured in LdCom:
LdComTpTxConfirmation [ECUC_LdCom_00017] as part of LdComIPdu

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 Specification of RTE
AUTOSAR CP Release 4.3.0

5.9.2.2.7 Rte_LdComCbkTriggerTransmit_<sn>

Service name: Rte_LdComCbkTriggerTransmit_<sn>

Syntax: Std_ReturnType Rte_LdComCbkTriggerTransmit_<sn>(
PduInfoType* PduInfoPtr
)
Service ID[hex]: 0xA6
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): None
Parameters (inout): PduInfoPtr Contains a pointer to a buffer (SduDataPtr) to where
the SDU data shall be copied, and the available
buffer size in SduLengh.
On return, the service will indicate the length of the
copied SDU data in SduLength.
Parameters (out): None
Return value: Std_ReturnType E_OK: SDU has been copied and SduLength indi-
cates the number of copied bytes.
E_NOT_OK: No SDU data has been copied. PduIn-
foPtr must not be used since it may contain a NULL
pointer or point to invalid data.
Description: Within this API, the upper layer module (called module) shall check
whether the available data fits into the buffer size reported by PduInfoPtr-
>SduLength.
If it fits, it shall copy its data into the buffer provided by PduInfoPtr-
>SduDataPtr and update the length of the actual copied data in
PduInfoPtr->SduLength.
If not, it returns E_NOT_OK without changing PduInfoPtr.

Table 5.30: Rte_LdComCbkTriggerTransmit_sn

[SWS_Rte_01408] d
Std_ReturnType Rte_LdComCbkTriggerTransmit_<sn> (
PduInfoType* PduInfoPtr
)

where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246)

It is configured in LdCom:
LdComTxCopyTxData [ECUC_LdCom_00018] as part of LdComIPdu
[SWS_Rte_01409] d The Rte_LdComCbkTriggerTransmit_<sn> Call back shall
return E_OK when SDU has been copied. In this case PduInfoPtr->SduLength
shall indicate the number of copied bytes. c(SRS_Rte_00246)
[SWS_Rte_01410] d The Rte_LdComCbkTriggerTransmit_<sn> Call back shall
return E_NOT_OK when No SDU data has been copied. c(SRS_Rte_00246)
In case of failure, PduInfoPtr must not be used since it may contain a NULL pointer
or point to invalid data.

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 Specification of RTE
AUTOSAR CP Release 4.3.0

5.9.2.2.8 Rte_LdComCbkTxConfirmation_<sn>

Service name: Rte_LdComCbkTxConfirmation_<sn>

Syntax: void Rte_LdComCbkTxConfirmation_<sn>(
Std_ReturnType result
)
Service ID[hex]: 0xA7
Sync/Async: Synchronous
Reentrancy: Non Reentrant for same sn, otherwise Reentrant
Parameters (in): result E_OK: The PDU was transmitted.
E_NOT_OK: Transmission of the PDU failed.
Parameters (inout): None
Parameters (out): None
Return value: None
Description: The lower layer communication interface module confirms the transmis-
sion of a PDU, or the failure to transmit a PDU.

Table 5.31: Rte_LdComCbkTxConfirmation_sn

[SWS_Rte_01411] d
void Rte_LdComCbkTxConfirmation_<sn> (
Std_ReturnType result
)

where <sn> is a LdCom signal/I-PDU name. c(SRS_Rte_00246, SRS_Com_02044)

It is configured in LdCom:
LdComTxConfirmation [ECUC_LdCom_00021] as part of LdComIPdu

5.9.3 NVM Service Call-backs

5.9.3.1 Rte_SetMirror

Service name: Rte_SetMirror_<b>_<d>

Syntax: Std_ReturnType Rte_SetMirror_<b>_<d>(
const void* NVMBuffer
)
Service ID[hex]: 0x9b
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): NVMBuffer source buffer pointer
Parameters (inout): None
Parameters (out): None
Return value: Std_ReturnType E_OK: the copy is successful.
E_NOT_OK: the copy could not be performed.
Description: The Rte_SetMirror API copies the values of the VariableDataPrototypes
contained in a NvBlockDescriptor from a NVM internal buffer to their lo-
cations in the RTE.

Table 5.32: Rte_SetMirror

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Rte_SetMirror warranties the consistency of the VariableDataPrototypes con-

tained in a NvBlockSwComponentType, when the associated NVM block is read and
copied to the VariableDataPrototypes storage locations.
[SWS_Rte_07310] d
Std_ReturnType
Rte_SetMirror_<b>_<d> (const void *NVMBuffer)

where <b> is the SwComponentPrototypes name of the NvBlockSwComponent-

Type and <d> is the NvBlockDescriptor name. c(SRS_Rte_00178)
[SWS_Rte_07311] d An Rte_SetMirror API shall be created for each instance of a
NvBlockDescriptor. c(SRS_Rte_00178)
[SWS_Rte_07312] d The Rte_SetMirror API shall copy the specified buffer to
the NvBlockDescriptors ramBlock, according to the NvBlockDescriptors
NvBlockDataMapping. c(SRS_Rte_00177)
The RTE is responsible for ensuring the data consistency, see section 4.2.5 In partic-
ular for the NvBlockDescriptor, the Sender-Receiver ports, the Rte_SetMirror,
and Rte_GetMirror may access concurrently the same VariableDataProto-
types.
[SWS_Rte_07319] d The Rte_SetMirror API shall be callable before the Rte is
started (with Rte_Start), and can rely on a running OS. c(SRS_Rte_00178)
The NVM module uses the return value of the Rte_SetMirror API to check if the
copy was successful. In case of failure, the NVM may retry later.
[SWS_Rte_07602] d The Rte_SetMirror API shall return E_OK if the copy is suc-
cessful. c(SRS_Rte_00178)
[SWS_Rte_07613] d The Rte_SetMirror API shall return E_NOT_OK if the copy
could not be performed. c(SRS_Rte_00178)
The NVM shall be configured to use this function when ReadBlock requests are pro-
cessed (see NvmWriteRamBlockFromNvm in [21]).

5.9.3.2 Rte_GetMirror

Service name: Rte_GetMirror_<b>_<d>

Syntax: Std_ReturnType Rte_GetMirror_<b>_<d>(
void* NVMBuffer
)
Service ID[hex]: 0x9c
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): NVMBuffer destination buffer pointer

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Return value: Std_ReturnType E_OK: the copy is successful.

E_NOT_OK: the copy could not be performed.
Description: The Rte_GetMirror API copies the values of the VariableDataPrototypes
contained in a NvBlockDescriptor to a specified NVM internal buffer.

Table 5.33: Rte_GetMirror

Rte_GetMirror warranties the consistency of the VariableDataPrototypes con-

tained in a NvBlockSwComponentType, when their values are written to the NVRAM
device by the NVM.
[SWS_Rte_07315] d
Std_ReturnType
Rte_GetMirror_<b>_<d> (void *NVMBuffer)

where <b> is the SwComponentPrototypes name of the NvBlockSwComponent-

Type and <d> is the NvBlockDescriptor name. c(SRS_Rte_00178)
[SWS_Rte_07316] d An Rte_GetMirror API shall be created for each instance of a
NvBlockDescriptor. c(SRS_Rte_00178)
The Rte_GetMirror API copies the values of the VariableDataPrototypes con-
tained in a NvBlockDescriptor to a specified NVM internal buffer.
[SWS_Rte_07317] d The Rte_GetMirror API shall copy the NvBlockDescrip-
tors ramBlock to the specified buffer, according to the NvBlockDescriptors
NvBlockDataMapping. c(SRS_Rte_00177)
The RTE is responsible for ensuring the data consistency, see section 4.2.5 In partic-
ular for the NvBlockDescriptor, the Sender-Receiver ports, the Rte_SetMirror,
and Rte_GetMirror may access concurrently the same VariableDataProto-
types.
[SWS_Rte_07350] d The Rte_GetMirror API shall be callable after the Rte is
stopped (with Rte_Stop), and can rely on a running OS. c(SRS_Rte_00178)
The NVM module uses the return value of the Rte_GetMirror API to check if the
copy was successful. In case of failure, the NVM may retry later.
[SWS_Rte_07601] d The Rte_GetMirror API shall return E_OK if the copy is suc-
cessful. c(SRS_Rte_00178)
[SWS_Rte_07614] d The Rte_GetMirror API shall return E_NOT_OK if the copy
could not be performed. c(SRS_Rte_00178)
The NVM shall be configured to use this function when WriteBlock requests are pro-
cessed (see NvmWriteRamBlockToNvm in [21]).

5.9.3.3 Rte_NvMNotifyJobFinished

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Service name: Rte_NvMNotifyJobFinished_<b>_<d>

Syntax: Std_ReturnType Rte_NvMNotifyJobFinished_<b>_<d>(
uint8 ServiceId,
NvM_RequestResultType JobResult
)
Service ID[hex]: 0x9d
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): ServiceId Unique Service ID of NVRAM manager service.
JobResult Covers the job result of the processed NvM job.
Parameters (inout): None
Parameters (out): None
Return value: Std_ReturnType The Rte_NvMNotifyJobFinished API shall return E_
OK.
Description: The Rte_NvMNotifyJobFinished receives the notification from the NvM
when a job is finished and forward it to the SW-C.

Table 5.34: Rte_NvMNotifyJobFinished

Rte_NvMNotifyJobFinished forwards notifications back to the SW-Cs.

[SWS_Rte_07623] d
Std_ReturnType
Rte_NvMNotifyJobFinished_<b>_<d> (
uint8 ServiceId,
NvM_RequestResultType JobResult)

where <b> is the SwComponentPrototypes name of the NvBlockSwComponent-

Type and <d> is the NvBlockDescriptor name. c(SRS_Rte_00228)
[SWS_Rte_07624] d An Rte_NvMNotifyJobFinished API shall be created for each
instance of a NvBlockDescriptor. c(SRS_Rte_00228)
[SWS_Rte_07625] d The Rte_NvMNotifyJobFinished API shall call the servers
referenced by RoleBasedPortAssignment with a NvMNotifyJobFinished role
which are aggregated to the NvBlockDescriptor. c(SRS_Rte_00228)
[SWS_Rte_07671] d The Rte_NvMNotifyJobFinished API shall return without
any action when the RTE is not started, when the RTE is stopped, or when the
partition containing the NvBlockSwComponentType is terminated or restarting. c
(SRS_Rte_00228)
[SWS_Rte_07626] d The Rte_NvMNotifyJobFinished API shall return E_OK. c
(SRS_Rte_00228)
The NVM shall be configured to use this function (see NvmSingleBlockCallback
in [21]).

5.9.3.4 Rte_NvMNotifyInitBlock

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Service name: Rte_NvMNotifyInitBlock_<b>_<d>

Syntax: Std_ReturnType Rte_NvMNotifyInitBlock_<b>_<d>(
void
)
Service ID[hex]: 0x9e
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: Std_ReturnType The Rte_NvMNotifyInitBlock API shall return E_OK.
Description: The Rte_NvMNotifyInitBlock API receives the notification from the NvM
when initialization of the mirror is requested.

Table 5.35: Rte_NvMNotifyInitBlock

Rte_NvMNotifyInitBlock indicates to the SW-Cs that initialization of the Mirror is

requested by the NvM.
[SWS_Rte_07627] d
Std_ReturnType
Rte_NvMNotifyInitBlock_<b>_<d> (void)

where <b> is the SwComponentPrototypes name of the NvBlockSwComponent-

Type and <d> is the NvBlockDescriptor name. c(SRS_Rte_00228)
[SWS_Rte_07628] d An Rte_NvMNotifyInitBlock API shall be created for each
instance of a NvBlockDescriptor. c(SRS_Rte_00228)
[SWS_Rte_07629] d If the NvBlockDescriptor is configured with a romBlock
initValue, this initValue shall be copied into the NvBlockDescriptors mir-
ror before calling any SW-C server. c(SRS_Rte_00228)
[SWS_Rte_07630] d The Rte_NvMNotifyInitBlock API shall call the servers ref-
erenced by RoleBasedPortAssignment with a NvMNotifyInitBlock role which
are aggregated to the NvBlockDescriptor. c(SRS_Rte_00228)
[SWS_Rte_07672] d The Rte_NvMNotifyInitBlock API shall return without any
action when the RTE is not started, when the RTE is stopped, or when the par-
tition containing the NvBlockSwComponentType is terminated or restarting. c
(SRS_Rte_00228)
Due to [SWS_Rte_07672], a block selected in the NVRAM Manager [21] as read during
NvM_ReadAll should not be configured with its NvmInitBlockCallback set to a
Rte_NvMNotifyInitBlock API.
[SWS_Rte_07631] d The Rte_NvMNotifyInitBlock API shall return E_OK. c
(SRS_Rte_00228)
The NVM shall be configured to use this function (see InitBlockCallbackFunc-
tion in [21]).

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5.10 Expected interfaces

5.10.1 Expected Interfaces from Com

The specification of the RTE requires the usage of the following COM API functions.
Com API function Context
Com_SendSignal to transmit a data element of primitive type using COM.
Com_SendDynSignal to transmit a data element of primitive dynamic type
uint8[n] using COM.
Com_ReceiveSignal to retrieve the new value of a data element of primitive
type from COM.
Com_ReceiveDynSignal to retrieve the new value of a data element of primitive
dynamic type uint[8] from COM.
Com_SendSignalGroup to initiate sending of a data element of composite type
using COM.
Com_ReceiveSignalGroup to retrieve the new value of a data element of composite
type from COM.
Com_InvalidateSignal to invalidate a data element of primitive type using COM.
Com_InvalidateSignalGroup to invalidate a whole signal group using COM.
Com_SendSignalGroupArray to initiate sending of a data element of composite type
using COM array based signal group API.
Com_ReceiveSignalGroup to retrieve the new data element of composite type using
Array COM array based signal group API.

Table 5.36: COM API functions used by the RTE

Please note that [SWS_Rte_02761] may require to access COM through the use of
call trusted function in a partitioned system.

5.10.2 Expected Interfaces from LdCom

The specification of the RTE requires the usage of the following LdCom API functions.
LdCom API function Context
LdCom_Transmit to transmit a data element of primitive type or uint8[n]
using LdCom API.

Table 5.37: LdCom API functions used by the RTE

Please note that [SWS_Rte_02761] may require to access LdCom through the use of
call trusted function in a partitioned system.

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5.10.3 Expected Interfaces from Os

The usage of APIs provided by the Os module [4] is up to the implementation of a spe-
cific RTE Generator, System description and Ecu configuration. In general a RTE may
utilize any standardized API. Therefore no dedicated list of expected APIs is specified
here.
In case of multi-core the RTE may utilize the IOC-Module [4] to implement the inter-
core communication. The IOC-Module is specified to be part of the Os. Therefore no
specific APIs are listed here.

5.10.4 Expected Interfaces for Data Transformation

The specification of the RTE requires the usage of the following Transformer API func-
tions.
Transformer API function Context
<Mip>_<transformerId> API of a transformer on the sending/calling side
of the communcation. The name pattern follows
[SWS_Xfrm_00062].
<Mip>_Inv_<transformerId> API of a transformer on the receiving/called side
of the communcation. The name pattern follows
[SWS_Xfrm_00062].

Table 5.38: Transformer API functions used by the RTE

Please note that the exact names of the API depend on the EcuC of the respective
transformer module.
The EcuC of a transformer module contains a mapping from the transformer and
ISignal or ISignalGroup with the to the BswModuleEntry which implements this
specific transformer. (See [ECUC_Xfrm_00001].
This mapping can be used by the RTE to determine which BswModuleEntry shall be
executed by the RTE for a specific transformer.

5.10.5 Expected Interfaces from NvM

The specification of the RTE requires the usage of the following NvM API functions.
NvM API function Context
NvM_SetBlockProtection to set/reset the write protection for a NV block
NvM_EraseBlock to erase a NV block.
NvM_GetDataIndex to get the currently set DataIndex of a dataset NVRAM
block.
NvM_GetErrorStatus to read the block dependent error/status information.
NvM_InvalidateNvBlock to invalidate a NV block.

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NvM API function Context

NvM_ReadBlock to copy the data of the NV block to its corresponding RAM
block.
NvM_ReadPRAMBlock to copy the data of the NV block to its corresponding per-
manent RAM block.
NvM_RestoreBlockDefaults to restore the default data to its corresponding RAM
block.
NvM_RestorePRAMBlock to restore the default data to its corresponding permanent
Defaults RAM block.
NvM_SetDataIndex to set the DataIndex of a dataset NVRAM block.
NvM_SetRamBlockStatus to set the RAM block status of an NVRAM block.
NvM_WriteBlock to copy the data of the RAM block to its corresponding
NV block.
NvM_WritePRAMBlock to copy the data of the RAM block to its corresponding
permanent RAM block.

Table 5.39: NvM API functions used by the RTE

5.11 VFB Tracing Reference

The RTEs VFB Tracing functionality permits the monitoring of AUTOSAR signals as
they are sent and received across the VFB.
The RTE operates in at least two builds (some implementations may provide more than
two builds). The first, production, does not enable VFB tracing whereas the second,
debug, can be configured to trace some or all interesting events.
[SWS_Rte_01327] d The RTE generator shall support a build where no VFB events
are traced. c(SRS_Rte_00005)
[SWS_Rte_01328] d The RTE generator shall support a build that traces (configured)
VFB events. c(SRS_Rte_00005)
The RTE generators trace build is enabled or disabled through definitions in the RTE
Configuration Header File [SWS_Rte_01322] and [SWS_Rte_01323]. Note that this
trace build is intended to enable debugging of software components and not the RTE
itself.

5.11.1 Principle of Operation

The VFB Tracing mechanism is designed to offer a lightweight means to monitor the
interactions of AUTOSAR software-components with the VFB.
The VFB tracing in debug build is implemented by a series of hook functions that
are invoked automatically by the generated RTE when interesting events occur. Each
hook function corresponds to a single event.
The supported trace events are defined in Section 5.11.5. A mechanism is described in
Section 5.11.6 for configuring which of the many potential trace events are of interest.

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5.11.2 Support for multiple clients

The VFB Tracing mechanism is designed to support multiple clients for each trace
event.
[SWS_Rte_05093] d For each RteVfbTraceClientPrefix configured in the RTE
Configuration input each Trace Event shall be generated using that client prefix
in the optional <client> position of the API function name. c(SRS_Rte_00005,
SRS_Rte_00008, SRS_Rte_00192)
[SWS_Rte_05091] d The RTE Generator shall provide each Trace Event without a
client prefix. c(SRS_Rte_00005, SRS_Rte_00008, SRS_Rte_00192)
The generation of Trace Events without a client prefix ensures compatibility of the trace
events with previous RTE releases.
[SWS_Rte_05092] d In case of multiple clients for one Trace Event the individual trace
functions shall be called in the following order:
1. The trace function without client prefix.
2. The trace functions with client prefix in alphabetically ascending order of the
RteVfbTraceClientPrefix (ASCII / ISO 8859-1).
c(SRS_Rte_00005, SRS_Rte_00008, SRS_Rte_00192)
The calling order specification ensures a deterministic execution of the multiple clients.
One example of the usage of client prefix is the parallel usage of Debugging and Diag-
nostic Log and Trace [33]. In this example two RteVfbTraceClientPrefix would
be specified:
Dbg
Dlt
This shall result in the declaration of three trace functions for the one Trace Event
Rte_[<client>_]Task_Activate(TaskType task):
Rte_Task_Activate(TaskType task)
Rte_Dbg_Task_Activate(TaskType task)
Rte_Dlt_Task_Activate(TaskType task)
These trace functions (if all used in one project) will be called in the following order:
1. Rte_Task_Activate(TaskType task)
2. Rte_Dbg_Task_Activate(TaskType task)
3. Rte_Dlt_Task_Activate(TaskType task)

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5.11.3 Support for Multiple Instantiation

[SWS_Rte_06031] d The Component Data Structure type for a multiply instantiatable

SWC type shall be introduced as a forward reference when used within the VFB Tracing
Header File. c(SRS_Rte_00005, SRS_Rte_00011)
The use of a forward reference enables a pointer to the object to be taken (since the
size of the data structure does not need to be known).

5.11.4 Contribution to the Basic Software Module Description

The RTE Generator in Generation Phase shall also update its Basic Software Module
Description ([SWS_Rte_05086]) in order to document the possibly traceable functions
and their signatures.
[SWS_Rte_05106] d For each generated hook function - including multiple trace clients
([SWS_Rte_05093]) - an entry in the Basic Software Module Description shall be
entered describing the hook function and its signature. The outgoingCallback
element of BswModuleDescription shall be used to capture the information. c
(SRS_Rte_00005, SRS_Rte_00192)

5.11.5 Trace Events

5.11.5.1 RTE API Trace Events

RTE API trace events occur when an AUTOSAR software-component interacts with the
generated RTE API. For implicit S/R communication, however, tracing is not supported.

5.11.5.1.1 RTE API Start

Description: RTE API Start is invoked by the RTE when an API call is made by a
component.
Signature: [SWS_Rte_01238] d
void Rte_[<client>_]<api>Hook_<cts>_<ap>_Start
([const struct Rte_CDS_<cts>*, ]<param>)

Where <api> is the RTE API Name (Write, Call, etc.),

<cts> is the component type symbol of the AtomicSwCompo-
nentType and
<ap> the access point name (e.g. port and data element or operation
name, exclusive area name, etc.).

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The parameters of the API shall be the same as the corresponding

RTE API. As with the API itself, the instance handle is included if
and only if the software components supportsMultipleInstan-
tiation attribute is set to true and the RTE API function is per-
instance. Thus the instance handle is always omitted for SWCs
supporting single instantiation and also for per-SWC functions, such
as Rte_CData for shared ParameterDataPrototypes, for SWCs
supporting multiple instantiation. Note that Rte_Instance can-
not be used directly, as there will be pointers to multiple compo-
nents structure types within the single VFB Tracing header file, and
Rte_Instance would therefore be ambiguous. c(SRS_Rte_00045,
SRS_Rte_00003, SRS_Rte_00004)

5.11.5.1.2 RTE API Return

Description: RTE API Return is a trace event that is invoked by the RTE just before
an API call returns control to a component.
Signature: [SWS_Rte_01239] d
void Rte_[<client>_]<api>Hook_<cts>_<ap>_Return
([const struct Rte_CDS_<cts>*, ]<param>)

Where <api> is the RTE API Name (Write, Call, etc.),

<cts> is the component type symbol of the AtomicSwCompo-
nentType and
<ap> the access point name (e.g. port and data element or operation
name, exclusive area name, etc.).
The parameters of the API are the same as the corresponding RTE
API and contain the values of OUT and INOUT parameters on exit
from the function.
As with the API itself, the instance handle is included if and only if
the software components supportsMultipleInstantiation at-
tribute is set to true and the RTE API function is per-instance. Thus
the instance handle is always omitted for SWCs supporting single in-
stantiation and also for per-SWC functions, such as Rte_CData for
shared ParameterDataPrototypes, for SWCs supporting multi-
ple instantiation. Note that Rte_Instance cannot be used directly,
as there will be pointers to multiple components structure types
within the single VFB Tracing header file, and Rte_Instance would
therefore be ambiguous. c(SRS_Rte_00045)

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5.11.5.2 BSW Scheduler API Trace Events

BSW Scheduler API trace events occur when an AUTOSAR Basic Software Module
interacts with the generated BSW Scheduler API.

5.11.5.2.1 BSW Scheduler API Start

Description: BSW Scheduler API Start is invoked by the BSW Scheduler when an
API call is made by a Basic Software Module.
Signature: [SWS_Rte_04531] d
void SchM_[<client>_]<api>Hook_<bnsp>_[<vi>_<ai>]_
<name>_Start(<param>)

Where <api> is the BSW Scheduler API Name (Send, Call, etc.),
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module and
<name> is the name provided by the API (e.g. shortName of the
VariableDataPrototype of a sender-receiver connection).
The parameters of the API shall be the same as the corresponding
BSW Scheduler API.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
([SWS_Rte_07528]).
c(SRS_Rte_00003, SRS_Rte_00004, SRS_Rte_00045)

5.11.5.2.2 BSW Scheduler API Return

Description: BSW Scheduler API Return is invoked by the BSW Scheduler just
before an API call returns control to a Basic Software Module.
Signature: [SWS_Rte_04532] d
void SchM_[<client>_]<api>Hook_<bnsp>_[<vi>_<ai>]_
<name>_Return(<param>)

Where <api> is the BSW Scheduler API Name (Send, Call, etc.),
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the BSW module,

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<ai> is the vendorApiInfix of the BSW module and

<name> is the name provided by the API (e.g. shortName of the
VariableDataPrototype of a sender-receiver connection).
The parameters of the API shall be the same as the corresponding
BSW Scheduler API.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
([SWS_Rte_07528]).
c(SRS_Rte_00003, SRS_Rte_00004, SRS_Rte_00045)

5.11.5.3 COM Trace Events

COM trace events occur when the generated RTE interacts with the AUTOSAR com-
munication service.

5.11.5.3.1 Signal Transmission

Description: A trace event indicating a transmission request of an Inter-ECU

signal (or signal in a signal group) by the RTE. Invoked by
the RTE just before Com_SendSignal, Com_SendDynSignal, or
Com_SendSignalGroupArray is invoked.
Signature: [SWS_Rte_01240] d
void Rte_[<client>_]ComHook_<signalName>_SigTx
(<data>)

Where <signalName> is the COM signal name and <data> is

a pointer to the signal data to be transmitted. c(SRS_Rte_00045,
SRS_Rte_00003, SRS_Rte_00004)

5.11.5.3.2 Signal Reception

Description: A trace event indicating a successful attempt to read an Inter-ECU

signal (or signal in a signal group) by the RTE. Invoked by the RTE af-
ter return from Com_ReceiveSignal, Com_ReceiveDynSignal,
or Com_ReceiveSignalGroupArray.
Signature: [SWS_Rte_01241] d
void Rte_[<client>_]ComHook_<signalName>_SigRx
(<data>)

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Where <signalName> is the COM signal name and <data>

is a pointer to the signal data received. c(SRS_Rte_00045,
SRS_Rte_00003, SRS_Rte_00004)

5.11.5.3.3 Signal Invalidation

Description: A trace event indicating a signal invalidation request of an

Inter-ECU signal (or of a signal in a signal group) by the RTE.
Invoked by the RTE just before Com_InvalidateSignal
(if parameter RteUseComShadowSignalApi is FALSE), or
Com_InvalidateShadowSignal (if parameter RteUseComShad-
owSignalApi is TRUE) is invoked.
Signature: [SWS_Rte_03814] d
void Rte_[<client>_]ComHook_<signalName>_SigIv
(void)

Where <signalName> is the COM signal or a signal group name. c

(SRS_Rte_00045, SRS_Rte_00003, SRS_Rte_00004)

5.11.5.3.4 Signal Group Invalidation

Description: A trace event indicating a signal group invalidation request of an

Inter-ECU signal group by the RTE. Invoked by the RTE just before
Com_InvalidateSignalGroup is invoked.
Signature: [SWS_Rte_07639] d
void Rte_[<client>_]ComHook_<signalGroupName>_SigGroupIv
(void)

Where <signalGroupName> is the name of the signal group. c

(SRS_Rte_00045, SRS_Rte_00003, SRS_Rte_00004)

5.11.5.3.5 COM Callback

Description: A trace event indicating the start of a COM call-back. Invoked by

generated RTE code on entry to the COM call-back.
Signature: [SWS_Rte_01242] d
void Rte_[<client>_]ComHook<Event>_<signalName>
(void)

Where <signalName> is the name of the COM signal or signal

group and <Event> indicates the callback type and can take the val-
ues

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Rx for a reception indication callback

Inv for an invalidation callback
RxTOut for a reception timeout callback
TxTOut for a transmission timeout callback
TAck for a transmission acknowledgement callback
TErr for a transmission error callback
c(SRS_Rte_00045, SRS_Rte_00003, SRS_Rte_00004)

5.11.5.4 OS Trace Events

OS trace events occur when the generated RTE interacts with the AUTOSAR operating
system.

5.11.5.4.1 Task Activate

Description: A trace event that is invoked by the RTE immediately prior to the
activation of a task containing runnable entities.
Signature: [SWS_Rte_01243] d
void Rte_[<client>_]Task_Activate(TaskType task)

Where task is the OSs handle for the task. c(SRS_Rte_00045)

5.11.5.4.2 Task Dispatch

Description: A trace event that is invoked immediately an RTE generated task

(containing runnable entities) has commenced execution.
Signature: [SWS_Rte_01244] d
void Rte_[<client>_]Task_Dispatch(TaskType task)

Where task is the OSs handle for the task. c(SRS_Rte_00045)

5.11.5.4.3 Task Termination

Description: A trace event invoked immediately prior to an RTE generated task

(containing runnable entities) terminating execution. The same task
termination VFB event is used whether the RTE generated task ter-
minates by either a TerminateTask or a ChainTask OS Service
call.

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Signature: [SWS_Rte_06032] d
void Rte_[<client>_]Task_Terminate(TaskType task)

Where task is the OSs handle for the task. c(SRS_Rte_00045)

5.11.5.4.4 Set OS Event

Description: A trace event invoked immediately before generated RTE code at-
tempts to set an OS Event.
Signature: [SWS_Rte_01245] d
void Rte_[<client>_]Task_SetEvent(TaskType task,
EventMaskType ev)

Where task is the OSs handle for the task for which the event is
being set and ev the OS event mask. c(SRS_Rte_00045)

5.11.5.4.5 Wait OS Event

Description: Invoked immediately before generated RTE code attempts to wait on

an OS Event. This trace event does not indicate that the caller has
suspended execution since the OS call may immediately return if the
event was already set.
Signature: [SWS_Rte_01246] d
void Rte_[<client>_]Task_WaitEvent(TaskType task,
EventMaskType ev)

Where task is the OSs handle for the task (that is waiting for the
event) and ev the OS event mask. c(SRS_Rte_00045)

5.11.5.4.6 Received OS Event

Description: Invoked immediately after generated RTE code returns from waiting
on an event.
Signature: [SWS_Rte_01247] d
void Rte_[<client>_]Task_WaitEventRet(TaskType task,
EventMaskType ev)

Where task is the OSs handle for the task (that was waiting for
an event) and ev the event mask indicating the received event. c
(SRS_Rte_00045)
Note that not all of the trace events listed above may be available for a given input
configuration. For example if a task is activated by a schedule table, it is activated by

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the OS rather than by the RTE, hence no trace hook function for task activation can be
invoked by the RTE.

5.11.5.5 Runnable Entity Trace Events

Runnable entity trace events occur when a runnable entity is started.

5.11.5.5.1 Runnable Entity Invocation

Description: Event invoked by the RTE just before execution of runnable entry
starts via its entry point. This trace event occurs after any copies of
data elements are made to support the Rte_IRead API Call.
Signature: [SWS_Rte_01248] d
void Rte_[<client>_]Runnable_<cts>_<reName>_Start
([const RTE_CDS_<cts>*])

Where <cts> is the component type symbol of the Atomic-

SwComponentType
and reName the runnable entity name.
The instance handle is included if and only if the software compo-
nents supportsMultipleInstantiation attribute is set to true.
Note that Rte_Instance cannot be used directly, as there will be
pointers to multiple components structure types within the single VFB
Tracing header file, and Rte_Instance would therefore be ambigu-
ous. c(SRS_Rte_00045)

5.11.5.5.2 Runnable Entity Termination

purpose: Event invoked by the RTE immediately execution returns to RTE code
from a runnable entity. This trace event occurs before any write-back
of data elements are made to support the Rte_IWrite API Call.
Signature: [SWS_Rte_01249] d
void Rte_[<client>_]Runnable_<cts>_<reName>_Return
([const Rte_CDS_<cts>*])

Where <cts> is the component type symbol of the Atomic-

SwComponentType
and reName the runnable entity name.
The instance handle is included if and only if the software compo-
nents supportsMultipleInstantiation attribute is set to true.

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Note that Rte_Instance cannot be used directly, as there will be

pointers to multiple components structure types within the single VFB
Tracing header file, and Rte_Instance would therefore be ambigu-
ous. c(SRS_Rte_00045)

5.11.5.6 BSW Schedulable Entities Trace Events

BSW Schedulable entity trace events occur when a BSW Schedulable entity is started.

5.11.5.6.1 BSW Schedulable Entity Invocation

Description: Event invoked by the BSW Scheduler just before execution of BSW
Schedulable entry starts via its entry point.
Signature: [SWS_Rte_04533] d
void SchM_[<client>_]Schedulable_<bnsp>[_<vi>_<ai>]
_<entityName>_Start
(void)

Where
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module and
<entityName> is the name of the BSW Schedulable Entity or BSW
Callable Entity.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
([SWS_Rte_07528]).
c(SRS_Rte_00045)

5.11.5.6.2 BSW Schedulable Entity Termination

Description: Event invoked by the BSW Scheduler immediately after execution re-
turns to BSW Scheduler code from a BSW Schedulable Entity.
Signature: [SWS_Rte_04534] d
void SchM_[<client>_]Schedulable_<bnsp>[_<vi>_<ai>]
_<entityName>_Return(void)

Where

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<bsnp> is the BSW Scheduler Name Prefix according

[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module and
<entityName> is the name of the BSW Schedulable Entity or BSW
Callable Entity.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
([SWS_Rte_07528]).
c(SRS_Rte_00045)

5.11.5.7 RPT Trace Events

RPT trace events occur when a RP global buffer is sent or received.

5.11.5.7.1 Transmission

Description: Event invoked by the RTE immediately before transmission of an RP

global buffer.
The event takes as parameter a reference to the RP global
buffer allowing the VFB trace hook to both monitor and influence
the value.
Signature: [SWS_Rte_06113] d
void Rte_[<client>_]RptHook_<cts>_<var>_Transmit
([const RTE_CDS_<cts>*], <type>* <buffer> )

Where <cts> is the component type symbol of the Atomic-

SwComponentType, <var> the identifying name of the RP global
buffer, e.g. port and data element names. <buffer> is a refer-
ence to the RP global buffer.
The instance handle is included if and only if the software compo-
nents supportsMultipleInstantiation attribute is set to true.
Note that Rte_Instance cannot be used directly, as there will be
pointers to multiple components structure types within the single VFB
Tracing header file, and Rte_Instance would therefore be ambigu-
ous. c(SRS_Rte_00045, SRS_Rte_00244)

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5.11.5.7.2 Reception

Description: Event invoked by the RTE immediately before the received value is
copied from the RP global buffer to the RTE APIs OUT param-
eter or return value. Placing the VFB trace hook at this position en-
sures that any conditional writes to the RP global buffer gov-
erned by RP enabler flag will have taken effect.
The event takes as parameter a reference to the RP global
buffer allowing the VFB trace hook to both monitor and influence
the value.
Signature: [SWS_Rte_06114] d
void Rte_[<client>_]RptHook_<cts>_<var>_Reception
([const RTE_CDS_<cts>*], <type>* <buffer> )

Where <cts> is the component type symbol of the Atomic-

SwComponentType, <var> the identifying name of the RP global
buffer, e.g. port and data element names. <buffer> is a refer-
ence to the RP global buffer.
The instance handle is included if and only if the software compo-
nents supportsMultipleInstantiation attribute is set to true.
Note that Rte_Instance cannot be used directly, as there will be
pointers to multiple components structure types within the single VFB
Tracing header file, and Rte_Instance would therefore be ambigu-
ous. c(SRS_Rte_00045, SRS_Rte_00244)

5.11.6 Configuration

The VFB tracing mechanism works by the RTE invoking the tracepoint hook function
whenever the tracing event occurs.
The support trace events and their hook function name and signature are defined in
Section 5.11.5. There are many potential trace events and it is likely that only a few will
be of interest at any one time. Therefore The RTE generator supports a mechanism to
configure which trace events are of interest.
In order to minimize RTE Overheads, trace events that are not enabled should have
no run-time effect on the generated system. This is achieved through generated code
within the VFB Tracing Header File (see Section 5.3.7) and the user supplied definitions
from the RTE Configuration Header file (see Section 5.3.8).
The definition of trace event hook functions is contained within user code. If a defini-
tion is encapsulated within a #if block, as follows, the definition will automatically be
omitted when the trace event is disabled.
1 #if !defined(<trace event>)
2 void <trace event>(<params>)

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3 {
4 /* Function definition */
5 }
6 #endif

The configuration of which individual trace events are enabled is entirely under the
control of the user via the definitions included in the RTE Configuration header file.
[SWS_Rte_08000] d When RteVfbTrace is set to "true", a user shall be able to enable
any hook function in the RTE Configuration header file, regardless of whether it was
not enabled in the RTE configuration with a RteVfbTraceFunction parameter. c
(SRS_Rte_00005, SRS_Rte_00008)

5.11.7 Interaction with Object-code Software-Components

VFB tracing is only available during the RTE Generation or Basic Software Scheduler
Generation phase [SWS_Rte_01319] and therefore hook functions never appear in an
application header or in a Module Interlink Header file created during RTE Contract
resp. Basic Software Scheduler Contract phase. However, object-code software-
components and / or Basic Software Modules are compiled against the RTE Contract
resp. Basic Software Scheduler Contract phase headers and can therefore only trace
events that are inserted into the generated RTE. In particular they cannot trace events
that require invocation of hook functions to be inserted into the API mapping such as
the Rte_Pim API. However, many trace events are applicable to object-code software-
components including trace events related to the explicit communication API, to task
activity and for runnable entity start and stop.
This approach means that the external interactions of the object-code software-
component can be monitored without requiring modification of the delivered object-
code and without revealing the internal activity of the software-component. The ap-
proach is therefore considered to be consistent with the desire for IP protection that
prompts delivery of a software-component as object-code. Finally, tracing can easily
be disabled for a production build without invalidating tests of the object-code software-
component.

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6 Basic Software Scheduler Reference

6.1 Scope
This chapter presents the Basic Software Scheduler API from the perspective of AU-
TOSAR Basic Software Module these API is not applicable for AUTOSAR software-
components.
Section 6.2 presents basic principles of the API including naming conventions and
supported programming languages. Section 6.3 describes the header files used by
the Basic Software Scheduler and the files created by an RTE generator. The data
types used by the API are described in Section 6.4 and Sections 6.5 and 6.6 provide
a reference to the Basic Software Scheduler API itself including the definition of Basic
Software Module Entities.

6.2 API Principles

6.2.1 Basic Software Scheduler Namespace

The Basic Software Scheduler is interleaved with the scheduling part of the RTE. Fur-
ther on it is generated by the RTE Generator together with the RTE so Basic Software
Scheduler and RTE can not be separated if both are generated. Therefore the Basic
Software Scheduler uses the namespace of the RTE for internal symbols, variables
and functions, see [SWS_Rte_01171].
The only exceptions are defines, data types and functions belonging to the interface of
the Basic Software Scheduler. These are explicitly mentioned in the specification.
[SWS_Rte_07284] d All Basic Software Scheduler symbols (e.g. function names, data
types, etc.) belonging to the Basic Software Scheduler s interfaces are required to use
the SchM_ prefix. c(SRS_BSW_00307, SRS_BSW_00300, SRS_Rte_00055)
In case of Basic Software Modules supporting multiple instances of the same Ba-
sic Software Module the name space of the BswSchedulableEntitys and the
Basic Software Scheduler API related to one instance of a Basic Software Mod-
ule is extended by the vendorId and the vendorApiInfix. See document [12]
[SRS_BSW_00347]. In the following chapters this optional part is denoted by usage of
squared brackets [_<vi>_<ai>].
[SWS_Rte_07528] d If the attribute vendorApiInfix exists for a Basic Software
Module, the RTE generator shall insert the vendorId (<vi>) and the vendorApi-
Infix (<ai>) with leading underscores where it is denoted by [_<vi>_<ai>]. c
(SRS_BSW_00347)

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6.2.2 BSW Scheduler Name Prefix and Section Name Prefix

Since the Basic Software Module Description supports the description of BSW Module
Clusters one Basic Software Module Description can contain the content of several
BSW Modules. In order to fulfill the Standardized Interfaces with the cluster interface
different ICC3 Module abbreviations [9] inside one cluster can occur. For the Basic
Software Scheduler the Module abbreviation is used as BSW Scheduler Name Prefix
in the SchM API. Nevertheless the shortName of the BswModuleDescription can
as well describe the BSW Scheduler Name Prefix and Section Name Prefix
in order to provide one common prefix in case of ICC3 modules.
In the Meta Model Module abbreviations relevant for the Schedule Manager API are
explicitly expressed with the meta class BswSchedulerNamePrefix. Further infor-
mation can be found in document [9].

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AtpStructureElement Identifiable
InternalBehavior +exclusiveArea ExclusiveArea
0..*
atpVariation,atpSplitable

+canEnterExclusiveArea 0..* 0..* +runsInsideExclusiveArea

Identifiable
ExecutableEntity
+executableEntity
+ minimumStartInterval :TimeValue
0..*
+ reentrancyLevel :ReentrancyLevelEnum [0..1]

ARElement
BswInternalBehavior BswModuleEntity +implementedEntry
AtpBlueprint
1 AtpBlueprintable
BswModuleEntry
+calledEntry
+entity
atpVariation 0..*
atpVariation,atpSplitable
0..*

+issuedTrigger AtpStructureElement
Identifiable
atpVariation 0..*
Trigger

atpVariation
atpVariation
+schedulerNamePrefix 0..1 +accessedModeGroup 0..*+managedModeGroup 0..*

AtpPrototype
BswSchedulerNamePrefix
+schedulerNamePrefix ModeDeclarationGroupPrototype

atpVariation,atpSplitable
0..*

+behavior 1

Referrable
BswImplementation
ImplementationProps
+ arReleaseVersion :RevisionLabelString
+ symbol :CIdentifier
+ vendorApiInfix :Identifier [0..1]

ARElement
Implementation

atpSplitable
+resourceConsumption 1 SectionNamePrefix
Identifiable +sectionNamePrefix
ResourceConsumption atpVariation 0..*

+prefix 0..1

Identifiable
+memorySection MemorySection

atpVariation,atpSplitable
0..* + alignment :AlignmentType [0..1]
+ memClassSymbol :CIdentifier [0..1]
+ option :Identifier [0..*]
+ size :PositiveInteger [0..1]
+ symbol :Identifier [0..1]

Figure 6.1: BswSchedulerNamePrefix and SectionNamePrefix

In several requirements of this specification the Module Prefix is required and deter-
mined as follows:
[SWS_Rte_07593] d The BSW Scheduler Name Prefix <bsnp> of the calling
BSW module shall be derived from the BswModuleDescription shortName if no
BswSchedulerNamePrefix is defined for the BswModuleEntity using the related
Basic Software Scheduler API. c(SRS_Rte_00148, SRS_Rte_00149)

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[SWS_Rte_07594] d The BSW Scheduler Name Prefix <bsnp> shall be the value
of the symbol attribute of the BswSchedulerNamePrefix of the BswModuleEn-
tity if a BswSchedulerNamePrefix is defined for the BswModuleEntity using
the related Basic Software Scheduler API. c(SRS_Rte_00148, SRS_Rte_00149)
Further on the Memory Mapping inside one cluster can either keep or abolish the ICC3
borders. For some cases (e.g. Entry Point Prototype) the RTE has to know the used
prefixes for the Memory Allocation Keywords as well.
In the Meta Model these prefixes are expressed with the meta class Section-
NamePrefix. Further information can be found in document [9].
[SWS_Rte_07595] d The Section Name Prefix <snp> shall be the module ab-
breviation (in uppercase letters) of the BSW module derived from the BswMod-
uleDescriptions shortName if no SectionNamePrefix is defined for the
BswModuleEntity implementing the related BswModuleEntry. c(SRS_Rte_00148,
SRS_Rte_00149)
[SWS_Rte_07596] d The Section Name Prefix <snp> shall be the symbol of the
SectionNamePrefix of the MemorySection associated to the BswModuleEn-
tity implementing the related BswModuleEntry if a SectionNamePrefix is de-
fined for the BswModuleEntity implementing the related BswModuleEntry. c
(SRS_Rte_00148, SRS_Rte_00149)
For instance the following input configuration

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MEM :BswModuleDescription +providedEntry NvM_MainFunction : +implementedEntry

BswModuleEntry
category = BSW_CLUSTER

+providedEntry NvM_WriteBlock : +implementedEntry

BswModuleEntry

+providedEntry MemIf_SetMode : +implementedEntry

BswModuleEntry

+internalBehavior

MEM : +entity
BswInternalBehavior NvM_MainFunction :
BswSchedulableEntity

+executableEntity

+entity
NvM_WriteBlock :
BswCalledEntity
+schedulerNamePrefix +executableEntity
+schedulerNamePrefix

NvM :
+schedulerNamePrefix BswSchedulerNamePrefix

symbol = NvM
+entity MemIf_SetMode :
BswCalledEntity

+executableEntity
+schedulerNamePrefix

MemIf :
+schedulerNamePrefix BswSchedulerNamePrefix
+swAddrMethod
+swAddrMethod
symbol = MemIf +swAddrMethod
+behavior
CODE :SwAddrMethod

sectionType = code

MEM : +swAddrmethod
BswImplementation +swAddrmethod

+resourceConsumption

MEM : CODE_MEMIF :
+memorySection
ResourceConsumption MemorySection MEMIF_START_SEC_CODE
MEMIF_STOP_SEC_CODE
symbol = CODE
MEMIF_PART : +prefix
+sectionNamePrefix SectionNamePrefix

symbol = MEMIF

CODE_NVM :
+memorySection MemorySection
NVM_START_SEC_CODE
symbol = CODE NVM_STOP_SEC_CODE
NVM_PART :
+sectionNamePrefix +prefix
SectionNamePrefix

symbol = NVM

Figure 6.2: Example of ICC2 cluster

would result in the generation of the Entry Point Prototype according

[SWS_Rte_07195] as:
1 #define NVM_START_SEC_CODE
2 #include "MEM_MemMap.h"
3

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4 FUNC(void, NVM_CODE) NvM_MainFunction (void);

5
6 #define NVM_STOP_SEC_CODE
7 #include "MEM_MemMap.h"

6.2.3 BSW Scheduler API options

[SWS_Rte_06811] d If the attribute enableTakeAddress is set to TRUE for

a providedData, requiredData, perInstanceParameter, providedMode-
Group, requiredModeGroup, releasedTrigger, requiredClientServerEn-
try, BswInternalTriggeringPoint or arTypedPerInstanceMemory the RTE
generator shall provide an API implementation of the related SchM APIs for which it is
valid to take the address of an API function at compile time. c()
In C it is valid to take the address of a function but not of a function-like macro. If the
enableTakeAddress attribute is not set or set to FALSE for a particular SchM API,
the RTE generator may provide C functions or function like macro depending from the
implementation.

6.3 Basic Software Scheduler modules

[SWS_Rte_07288] d Every file of the Basic Software Scheduler shall be named with
the prefix SchM_. c(SRS_BSW_00300)

6.3.1 Module Interlink Types Header

The Module Interlink Types Header defines specific types related to this basic software
module derived either from the input configuration or from the RTE / Basic Software
Scheduler implementation.
[SWS_Rte_07503] d The RTE generator shall create a Module Interlink Types Header
File for each BswSchedulerNamePrefix in the BswInternalBehavior of each
BswImplementation referencing such BswInternalBehavior defined in the in-
put. c(SRS_BSW_00415)
For instance a input configuration with two BswImplementations (typical with dif-
ferent API infix) referencing a BswInternalBehavior with three BswScheduler-
NamePrefixes would result in the generation of six Module Interlink Types Header
Files.

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6.3.1.1 File Name

[SWS_Rte_07295] d The name of the Module Interlink Types Header File shall be
formed in the following way:
SchM_<bsnp>_[<vi>_<ai>]Type.h
Where here
<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module and
<ai> is the vendorApiInfix of the BSW module.
The sub part in squared brackets [<vi>_<ai>] is omitted if no vendorApiInfix is
defined for the Basic Software Module. See [SWS_Rte_07528]. c(SRS_BSW_00415,
SRS_BSW_00300, SRS_BSW_00347)

Example 6.1

The following declaration in the input XML:

<AR-PACKAGE>
<SHORT-NAME>CanDriver</SHORT-NAME>
<ELEMENTS>
<BSW-MODULE-DESCRIPTION>
<SHORT-NAME>Can</SHORT-NAME>
<INTERNAL-BEHAVIORS>
<BSW-INTERNAL-BEHAVIOR>
<SHORT-NAME>YesWeCan</SHORT-NAME>
</BSW-INTERNAL-BEHAVIOR>
</INTERNAL-BEHAVIORS>
</BSW-MODULE-DESCRIPTION>
<BSW-IMPLEMENTATION>
<SHORT-NAME>MyCanDrv</SHORT-NAME>
<VENDOR-ID>25</VENDOR-ID>
<BEHAVIOR-REF DEST="BSW-INTERNAL-BEHAVIOR">/CanDriver/Can/
YesWeCan</BEHAVIOR-REF>
<VENDOR-API-INFIX>Dev0815</VENDOR-API-INFIX>
</BSW-IMPLEMENTATION>
</ELEMENTS>
</AR-PACKAGE>

should result in the Module Interlink Types Header SchM_Can_25_Dev0815Type.h

being generated.

The concatenation of the basic software module prefix (which has to be equally with
the short name of the basic software module description) and the vendor API infix is
required to support the separation of several basic software module instances. In dif-
ference to the multiple instantiation concept of software components, where the same

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component code is used for all component instances, basic software modules are mul-
tiple instantiated by creation of own code per instance in a different name space.

6.3.1.2 Scope

[SWS_Rte_07297] d The Module Interlink Types Header shall be valid for both C and
C++ source. c(SRS_Rte_00126, SRS_Rte_00138)
Requirement [SWS_Rte_07297] is met by ensuring that all definitions within the Appli-
cation Types Header File are defined using C linkage if a C++ compiler is used.
[SWS_Rte_07298] d All definitions within in the Module Interlink Types Header File
shall be preceded by the following fragment:
1 #ifdef __cplusplus
2 extern "C" {
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)
[SWS_Rte_07299] d All definitions within the Module Interlink Types Header shall be
suffixed by the following fragment:
1 #ifdef __cplusplus
2 } /* extern "C" */
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)

6.3.1.3 File Contents

[SWS_Rte_07500] d The Module Interlink Types Header shall include the RTE Types
Header File. c(SRS_BSW_00415)
The name of the RTE Types Header File is defined in Section 5.3.4.

6.3.1.4 Basic Software Scheduler Modes

The Module Interlink Types Header File shall contain identifiers for the ModeDeclara-
tions and type definitions for ModeDeclarationGroups as defined in Chapter 6.4.2

6.3.2 Module Interlink Header

The Module Interlink Header defines the Basic Software Scheduler API and any asso-
ciated data structures that are required by the Basic Software Scheduler implementa-
tion. But the Module Interlink Header file is not allowed to create objects in memory.

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[SWS_Rte_07501] d The RTE generator shall create a Module Interlink Header File for
each BswSchedulerNamePrefix in the BswInternalBehavior of each BswIm-
plementation referencing such BswInternalBehavior defined in the input.c
(SRS_BSW_00415)
[SWS_Rte_CONSTR_09059] Usage of Basic Software Scheduler API prerequi-
sites the include of the Module Interlink Header File d Each BSW module imple-
mentation shall include its Module Interlink Header File if it uses Basic Software Sched-
uler API or if it implements BswSchedulableEntitys. c()
[SWS_Rte_07502] d The Module Interlink Header File shall not contain code that cre-
ates objects in memory. c(SRS_BSW_00308)

6.3.2.1 File Name

[SWS_Rte_07504] d
The name of the Module Interlink Header File shall be formed in the following way:
1 SchM_<bsnp>[_<vi>_<ai>].h

Where here
<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module and
<ai> is the vendorApiInfix of the BSW module.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. c(SRS_BSW_00415, SRS_BSW_00300,
SRS_BSW_00347)

Example 6.2

The following declaration in the input XML:

<AR-PACKAGE>
<SHORT-NAME>CanDriver</SHORT-NAME>
<ELEMENTS>
<BSW-MODULE-DESCRIPTION>
<SHORT-NAME>Can</SHORT-NAME>
<INTERNAL-BEHAVIORS>
<BSW-INTERNAL-BEHAVIOR>
<SHORT-NAME>YesWeCan</SHORT-NAME>
</BSW-INTERNAL-BEHAVIOR>
</INTERNAL-BEHAVIORS>
</BSW-MODULE-DESCRIPTION>
<BSW-IMPLEMENTATION>
<SHORT-NAME>MyCanDrv</SHORT-NAME>
<VENDOR-ID>25</VENDOR-ID>

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<BEHAVIOR-REF DEST="BSW-INTERNAL-BEHAVIOR">/CanDriver/Can/
YesWeCan</BEHAVIOR-REF>
<VENDOR-API-INFIX>Dev0815</VENDOR-API-INFIX>
</BSW-IMPLEMENTATION>
</ELEMENTS>
</AR-PACKAGE>

should result in the Module Interlink Header SchM_Can_25_Dev0815.h being gener-

ated.

The concatenation of the basic software module prefix (which has to be equally with
the short name of the basic software module description) and the vendorApiInfix
is required to support the separation of several basic software module instances. In dif-
ference to the multiple instantiation concept of software components, where the same
component code is used for all component instances, basic software modules are mul-
tiple instantiated by creation of own code per instance in a different name space.

6.3.2.2 Scope

[SWS_Rte_07505] d The Module Interlink Header for a component shall contain dec-
larations relevant for that instance of a basic software module. c(SRS_BSW_00415)
Requirement [SWS_Rte_07505] means that compile time checks ensure that a Module
Interlink Header File that uses the Module Interlink Header File only accesses the
generated data types to which it has been configured. The use of data types which are
not used by the basic software module, will fail with a compiler error [SRS_Rte_00017].

6.3.2.3 File Contents

[SWS_Rte_07506] d The Module Interlink Header File shall include the Module Inter-
link Types Header File. c(SRS_BSW_00415)
The name of the Module Interlink Types Header File is defined in Section 6.3.1.
[SWS_Rte_07507] d The Module Interlink Header shall be valid for both C and C++
source. c(SRS_Rte_00126, SRS_Rte_00138)
Requirement [SWS_Rte_07507] is met by ensuring that all definitions within the Appli-
cation Types Header File are defined using C linkage if a C++ compiler is used.
[SWS_Rte_07508] d All definitions within in the Module Interlink Header File shall be
preceded by the following fragment:
1 #ifdef __cplusplus
2 extern "C" {
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)

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[SWS_Rte_07509] d All definitions within the Module Interlink Header File shall be
suffixed by the following fragment:
1 #ifdef __cplusplus
2 } /* extern "C" */
3 #endif /* __cplusplus */

c(SRS_Rte_00126, SRS_Rte_00138)

6.3.2.3.1 Entry Point Prototype

The Module Interlink Header File also includes a prototype for each BswSchedula-
bleEntitys entry point ([SWS_Rte_04542]).

6.3.2.3.2 Basic Software Scheduler - Basic Software Module Interface

The Module Interlink Header File defines the interface between a Basic Soft-
ware Module and the Basic Software Scheduler. The interface consists of the Ba-
sic Software Scheduler API for the Basic Software Module and the prototypes for
BswSchedulableEntitys entry point. The definition of the Basic Software Sched-
uler API requires in case of macro implementation that both relevant data structures
and API calls are defined. In case of interfaces implemented as functions, the proto-
types for the Basic Software Scheduler API of the particular Basic Software Module
instance is sufficient. The data structures are dependent from the implementation and
configuration of the Basic Software Scheduler and are not standardized. If data struc-
tures are required these shall be accessible via the Module Interlink Header File as
well.
The RTE generator is required [SWS_Rte_07505] to limit the contents of the Module
Interlink Header file to only that information that is relevant to that instance of a basic
software module. This requirement includes the definition of the API.
[SWS_Rte_07510] d Only Basic Software Scheduler API calls that are valid for the
particular instance of a basic software module shall be defined within the modules
Module Interlink Header File. c(SRS_BSW_00415, SRS_Rte_00017)
Requirement [SWS_Rte_07510] ensures that attempts to invoke invalid API calls will
be rejected as a compile-time error [SRS_Rte_00017].
[SWS_Rte_06534] d The RTE Generator shall wrap each Basic Software Scheduler
API definition of a variant existent API according table 4.28 if the variability shall be
implemented.
1 #if (<condition> [||<condition>])
2
3 <Basic Software Scheduler API Definition>
4

5 #endif

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where condition are the condition value macro(s) of the Variation-

Points relevant for the conditional existence of the RTE API (see table 4.28),
Basic Software Scheduler API Definition is the code according an
invariant Basic Software Scheduler API definition (see also [SWS_Rte_07510],
[SWS_Rte_07250], [SWS_Rte_07253], [SWS_Rte_07255], [SWS_Rte_07260],
[SWS_Rte_07556], [SWS_Rte_07263], [SWS_Rte_07266]) c(SRS_Rte_00229)
The Basic Software Scheduler API for basic software modules is defined in 6.5
[SWS_Rte_07511] d The Basic Software Scheduler API of the particular Basic Soft-
ware Module instance shall be implemented as functions if the basic software module
is delivered as object code. c(SRS_BSW_00342)
In case of basic software modules delivered as source code the definitions of the Basic
Software Scheduler API contained in the Module Interlink Header File can be optimized
during the RTE Generation phase when the mapping of the BswSchedulableEn-
titys to OS Tasks is known.

6.3.2.3.3 Provide activating Bsw event

The provide activating event feature is enabled if the executable entity has at least one
activationReason defined.
[SWS_Rte_08056] d If the provide activating event feature is enabled, the RTE gen-
erator in contract phase shall generate the executable entity signature according to
[SWS_Rte_07282] and [SWS_Rte_08071]. c(SRS_Rte_00238)
[SWS_Rte_08057] d If the provide activating event feature is en-
abled, the RTE generator in contract phase shall generate the type
SchM_ActivatingEvent_<name> (activation vector), where <name>
is the symbol describing the executable entitys entry point, to store the activation bits.
Based on the highest value of ExecutableEntityActivationReason.bitPosi-
tion for this executable entity the type shall be either uint8, uint16, or uint32 so
that the highest value of bitPosition fits into the data type. c(SRS_Rte_00238)
Note that it is considered an invalid configuration if ExecutableEntityActiva-
tionReason.bitPosition has a value higher than 31 (see [constr_1226] in soft-
ware component template [2]).
[SWS_Rte_08058] d If the provide activating event feature is enabled, the RTE gen-
erator in contract phase shall generate for each ExecutableEntityActivation-
Reason of one executable entity a definition to provide the specific bit position in the
Rte_ActivatingEvent_<name> data type:
#define SchM_ActivatingEvent_<name>_<activation> xxU
The value of xx is defined by the bitPosition xx = 2 bitPosition. c(SRS_Rte_00238)
For further details see section 4.2.3.3 Provide activating RTE event.

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6.3.2.3.4 RunnableEntity mapped to BswModuleEntity

In the case that a RunnableEntity is mapped to a BswSchedulableEntity the

RTE Generator emits a Entry Point Prototype for the RunnableEntity (5.7.2) as
well as a Entry Point Prototype for the BswSchedulableEntity (6.3.2.3.1). This
requires that both Entry Point Prototypes are compatible. Since RunnableEntity
and BswModuleEntry define a overlapping set of attributes its technically possible to
have redundancy in the AUTOSAR models between the BSW Module Description and
the Software Component Description. In order to support a non redundant M1 model
the RTE Generator has to determined common attributes from the BswModuleEntity
and apply them to the mapped RunnableEntity.
[SWS_Rte_06731] d The RTE Generator shall determine the attribute values of
RunnableEntity.symbol
RunnableEntity.minimumStartInterval
RunnableEntity.canBeInvokedConcurrently
RunnableEntity.swAddrMethod
from the mapped BswModuleEntity and its referred BswModuleEntry if an appli-
cable SwcBswRunnableMapping exists for the RunnableEntity. c()
Nevertheless if the attribute values are defined at both places for RunnableEntity
and the mapped BswModuleEntity the values have to be consistent.
[SWS_Rte_06732] d The RTE generator shall reject configurations violating the [con-
str_4071]. c(SRS_Rte_00018)
Within the scope of a SwcBswRunnableMapping both RTEEvents and BswEvents
are applicable. Therefore the ExecutableEntityActivationReasons of the
RunnableEntity and the mapped BswModuleEntity have to be overlayed.
[SWS_Rte_08071] d The signature of a RunnableEntity and a BswModuleEn-
tity with a SwcBswRunnableMapping shall contain all ExecutableEntityActi-
vationReasons that are defined for each entity. c(SRS_Rte_00238)
Note: Multiple definition of identical activationReasons with respect to shortName
and bitPosition yields to a valid configuration since both RunnableEntitys and
BswModuleEntitys may provide separate activationReasons.

6.3.2.3.5 Condition Value Macros

[SWS_Rte_08790] d For each VariationPointProxy which bindingTime = Pre-

CompileTime the Module Interlink Header File shall contain a definition
#define SchM_SysCon_<name>
SchM_SysCon_<bsnp>[_<vi>_<ai>]_<ki>_<name>

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Where
<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module,
<ki> is the kind infix according table 4.28,
<name> is the short name of the element which is subject to variability in table 4.28
defining the Basic Software Scheduler API name infix.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. See [SWS_Rte_07528]. c(SRS_Rte_00229,
SRS_BSW_00347)

6.4 API Data Types

Besides the API functions for accessing Basic Software Scheduler services, the API
also contains Basic Software Scheduler specific data types.

6.4.1 Predefined Error Codes for Std_ReturnType

The specification in [31] specifies a standard API return type Std_ReturnType. The
Std_ReturnType defines the "status" and "error values" returned by API functions.
It is defined as a uint8 type. The value 0 is reserved for No error occurred.
Symbolic name Value Comments
[SWS_Rte_07289] d SCHM_E_OK c 0 No error occurred.
(SRS_BSW_00327)
[SWS_Rte_07290] d SCHM_E_LIMIT 130 A internal Basic Software Scheduler limit has
c(SRS_BSW_00327) been exceeded. Request could not be handled.
OUT buffers are not modified.
Note: The value has to be identically with
[SWS_Rte_01317]
[SWS_Rte_07562] d 131 An explicit read API call returned no data. (This
SCHM_E_NO_DATA c is no error.)
(SRS_BSW_00327) Note: The value has to be identically with
[SWS_Rte_01061]
[SWS_Rte_07563] d 132 Transmission acknowledgement received.
SCHM_E_TRANSMIT_ACK c Note: The value has to be identically with
(SRS_BSW_00327) [SWS_Rte_01065]

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Symbolic name Value Comments

[SWS_Rte_02747] d 135 The error is returned by a blocking API and in-
SCHM_E_IN_EXCLUSIVE_AREA c dicates that the schedulable entity could not en-
(SRS_BSW_00327) ter a wait state, because one ExecutableEn-
tity of the current tasks call stack has entered
an ExclusiveArea.
Note: There are no blocking SchM APIs and
therefore this value cannot be returned. It is
defined here for future use and for consistency
with [SWS_Rte_02739]. Both error values have
to be identically.
[SWS_Rte_07054] d 129 The configured timeout exceeds before the in-
SCHM_E_TIMEOUT c tended result was ready.
(SRS_BSW_00327) Note: The value has to be identically with
[SWS_Rte_01064]

Table 6.1: Basic Software Scheduler Error and Status values

The underlying type for Std_ReturnType is defined as a uint8 for reasons of com-
patibility. Consequently, #define is used to declare the error values:
1 typedef uint8 Std_ReturnType; /* defined in Std_Types.h */
2
3 #define SCHM_E_OK 0U

[SWS_Rte_07291] d The errors as defined in table 6.1 shall be defined in the RTE
Header File. c(SRS_Rte_00051)
An Std_ReturnType value can be directly compared (for equality) with the above
pre-defined error identifiers.

6.4.2 Basic Software Modes

[SWS_Rte_07293] d For each ModeDeclarationGroup of category

"ALPHABETIC_ORDER", the Module Interlink Types Header File shall contain a
definition
1 #ifndef RTE_TRANSITION_<prefix><ModeDeclarationGroup>
2 #define RTE_TRANSITION_<prefix><ModeDeclarationGroup> \
3 <n>U
4 #endif

where <ModeDeclarationGroup> is the short name of the ModeDeclaration-

Group1 ,
<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-
tionGroupSet referring the ModeDeclarationGroup and
<n> is the number of modes declared within the group. c(SRS_Rte_00213)
1
No additional capitalization is applied to the names.

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[SWS_Rte_08600] d For each ModeDeclarationGroup of category

"EXPLICIT_ORDER", the Module Interlink Types Header File shall contain a def-
inition
1 #ifndef RTE_TRANSITION_<prefix><ModeDeclarationGroup>
2 #define RTE_TRANSITION_<prefix><ModeDeclarationGroup> \
3 <onTransitionValue>U
4 #endif

where <ModeDeclarationGroup> is the short name of the ModeDeclaration-

Group2 ,
<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-
tionGroupSet referring the ModeDeclarationGroup and
<onTransitionValue> is the onTransitionValue of the ModeDeclarationGroup.
c(SRS_Rte_00213)
[SWS_Rte_07294] d For each mode of a ModeDeclarationGroup of category
"ALPHABETIC_ORDER", the Module Interlink Types Header File shall contain a defi-
nition
1 #ifndef RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration>
2 #define RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration> \
3 <index>U
4 #endif

where <ModeDeclarationGroup> is the short name of the ModeDeclaration-

Group,
<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-
tionGroupSet referring the ModeDeclarationGroup
<ModeDeclaration> is the short name of a ModeDeclaration3 ,
and <index> is the index of the ModeDeclarations in alphabetic ordering (ASCII
/ ISO 8859-1 code in ascending order) of the short names within the Mode-
DeclarationGroup.
The lowest index shall be 0 and therefore the range of assigned values is 0..<n>
where <n> is the number of modes declared within the group c(SRS_Rte_00213)
[SWS_Rte_08601] d For each mode of a ModeDeclarationGroup of category
"EXPLICIT_ORDER", the Module Interlink Types Header File shall contain a definition
1 #ifndef RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration>
2 #define RTE_MODE_<prefix><ModeDeclarationGroup>_<ModeDeclaration> \
3 <value>U
4 #endif

where <ModeDeclarationGroup> is the short name of the ModeDeclaration-

Group,
2
No additional capitalization is applied to the names.
3
No additional capitalization is applied to the names.

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<prefix> is the optional prefix attribute defined by the IncludedModeDeclara-

tionGroupSet referring the ModeDeclarationGroup
<ModeDeclaration> is the short name of a ModeDeclaration4 ,
and <value> is the value specified at the ModeDeclaration. c(SRS_Rte_00213)

6.4.3 Enumeration Data Types

Enumeration is not a plain primitive ImplementationDataType. Rather a range of

integers can be used as a structural description. The mapping of integers on "labels"
in the enumeration is actually modeled in the SwC-T with the semantics class Com-
puMethod of a SwDataDefProps [2]. Enumeration data types are modeled as Im-
plementationDataTypes having a SwDataDefProps referencing a CompuMethod
that contains only CompuScales with point ranges (i. e. lower and upper limit of a Com-
puScale are identical).
[SWS_Rte_03983] d The The Module Interlink Types Header File shall include the
definitions of all constants of ImplementationDataTypes and Application-
DataTypes for each ImplementationDataType/ApplicationDataTypes used
(referenced) by this Basic Software module.
This includes constants for CompuMethods referenced by Implementation-
DataTypeElements of ImplementationDataTypes directly referenced by
the Basic Software module and constants for CompuMethods of Imple-
mentationDataTypes which are referenced indirectly via Implementation-
DataTypes / ImplementationDataTypeElements of category TYPE_REFERENCE.
c(SRS_Rte_00252)
[SWS_Rte_03983] is applicable regardless if the AutosarDataType is referenced
in DataPrototypes defined in the InternalBehavior of the Basic Software
module or AutosarDataTypes which are only referenced by the Included-
DataTypeSet.
This requirement ensures the availability of AutosarDataType constants for the in-
ternal use in Basic Software modules, for example enumeration constants.
The name of those constants bases on the CompuScale symbolic name as defined
in [TPS_SWCT_01569].
[SWS_Rte_03984] d For each CompuScale which has a point range and is
located in the compuInternalToPhys container of a CompuMethod referenced
by an ImplementationDataType or ApplicationPrimitiveDataType according
[SWS_Rte_03983] with category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE, the Module Inter-
link Types Header File shall contain a definition
1 #ifndef <prefix><EnumLiteral>
4
No additional capitalization is applied to the names.

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2 #define <prefix><EnumLiteral> <value><suffix>

3 #endif /* <prefix><EnumLiteral> */

where the name of the enumeration literal <EnumLiteral> is derived according to the
following rule:
if (attribute symbol of CompuScale is available and not empty) {
<EnumLiteral> := C identifier specified in symbol attribute of CompuScale
} else {
if (string specified in the VT element of the CompuConst of the CompuScale
is a valid C identifier) {
<EnumLiteral> :=
string specified in the VT element of the CompuConst of the CompuScale
} else {
if (attribute shortLabel of CompuScale is available and not empty) {
<EnumLiteral> :=
string specified in shortLabel attribute of CompuScale
}
}
}
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType using the CompuMethod.
<value> is the value representing the CompuScales point range.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00252)
Please note that the prefix can either be defined that the IncludedDataType-
Set with a literalPrefix attribute references the ApplicationDataType or it
references the ImplementationDataType.
[SWS_Rte_03984] implies that the RTE does add prefix to the names of the enumer-
ation constants on explicit demand only. This is necessary in order to handle enu-
meration constants supplied by Basic Software modules which all use their own prefix
convention. Such Enumeration constant names have to be unique in the whole AU-
TOSAR system.
[SWS_Rte_03985] d In the case that the same ImplementationDataType
or ApplicationPrimitiveDataType is referenced via different Included-
DataTypeSets with different literalPrefix attributes, the definition according to
[SWS_Rte_03984] has to be provided once for each different literalPrefix. c
(SRS_Rte_00252)
[SWS_Rte_03986] d If the input of the RTE generator contains a Com-
puMethod with category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE that contains a
CompuScale with a point range, and
neither the attribute symbol of the CompuScale is available and not empty,

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nor the string specified in the VT element of the CompuConst of the CompuScale
is a valid C identifier,
nor the attribute shortLabel of CompuScale is available and not empty,
the RTE generator shall reject this input as an invalid configuration. c(SRS_Rte_00018)
[SWS_Rte_03987] d The RTE shall reject configurations where the same Basic Soft-
ware module uses ImplementationDataTypes and ApplicationPrimitive-
DataTypes referencing two or more CompuMethods with category "TEXTTABLE",
"SCALE_LINEAR_AND_TEXTTABLE", "SCALE_RATIONAL_AND_TEXTTABLE", or
BITFIELD_TEXTTABLE that both contain a CompuScale with a different point range
and an identical CompuScale symbolic names as an invalid configuration. The
only exception is that the usage of the ImplementationDataTypes and Applica-
tionPrimitiveDataTypes are defined with non identical <literalPrefix>es. c
(SRS_Rte_00018)
[SWS_Rte_03988] d The RTE generator shall reject configurations violating the [con-
str_1133]. c(SRS_Rte_00018)
This rejects configurations where an ImplementationDataType or
an ApplicationPrimitiveDataType references a CompuMethod
which is of category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE and has
CompuScales with identical CompuScale symbolic names but different Com-
puScale.lowerLimit or CompuScale.upperLimit.
Note that there might exist additional CompuScales with non-point ranges inside
a CompuMethod of category "TEXTTABLE", "SCALE_LINEAR_AND_TEXTTABLE",
"SCALE_RATIONAL_AND_TEXTTABLE", or BITFIELD_TEXTTABLE , but for those no
enumeration literals are generated by the RTE generator.
The RTE generator does not support the use of C enums for DataPrototypes used
in Basic Software.
[SWS_Rte_03989] d The RTE generator shall reject configurations violating the [con-
str_1244], so where a DataPrototype that is used in an Basic Software module
has set the swDataDefProps.additionalNativeTypeQualifier attribute set to
enum. c(SRS_Rte_00018)

6.4.4 Range Data Types

For the ApplicationPrimitiveDataType a Range might be specified by referenc-

ing a data constraint (dataConstr) giving the lowerLimit and the upperLimit. To
allow a Basic Software Module the access to these values two definitions for these val-
ues shall be generated.
[SWS_Rte_03990] d The The Module Interlink Types Header File shall include the
definitions of all lowerLimit and upperLimit constants of each Application-

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PrimitiveDataType used by this Basic Software Module once per Application-

PrimitiveDataType if the ApplicationPrimitiveDataType is not referenced
via different IncludedDataTypeSets. c(SRS_Rte_00252)
[SWS_Rte_03991] d The Module Interlink Types Header File shall include the defini-
tions of all lowerLimit and upperLimit constants of each ApplicationPrimi-
tiveDataType used by this Basic Software Module for each combination of different
literalPrefix and ApplicationPrimitiveDataType when the same Imple-
mentationDataType or ApplicationPrimitiveDataType is referenced via dif-
ferent IncludedDataTypeSets. c(SRS_Rte_00252)
[SWS_Rte_03992] d The lowerLimit and upperLimit constants for Application-
PrimitiveDataType referencing a DataConstr shall be generated by RTE generator in
the Module Interlink Types Header File as:
1 #define <prefix><DataType>_LowerLimit <lowerValue><suffix>
2 #define <prefix><DataType>_UpperLimit <upperValue><suffix>

where <DataType> is the name of the ApplicationPrimitiveDataType used by

the Basic Software Module.
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType to which the DataConstr belongs.
<lowerValue> and <upperValue> are the values lowerLimit and upperLimit
of the dataConstr referenced by the ApplicationPrimitiveDataType onto which the
corresponding CompuMethod has been applied (see [SWS_Rte_07038]). The values
in the macro definitions shall always reflect the closed interval, regardless of the interval
type specified by the dataConstr.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00252)
Please note that [SWS_Rte_07196] is not applicable for [SWS_Rte_03992]. Further
on its possible that a DataPrototype using an ApplicationPrimitiveDataType might
reference additional dataConstr (see [SWS_Rte_07196]). In this case the upper-
Limit and lowerLimit definitions according [SWS_Rte_03992] do not reflect the
real applicable range of the DataPrototype. No macros are generated for Dat-
aPrototype specific data constraints.
Please note that the prefix can either be defined that the IncludedDataType-
Set with a literalPrefix attribute references the ApplicationDataType or it
references the ImplementationDataType.
Rationale: ApplicationPrimitiveDataType is taken as the basis for the gener-
ation of limits (as opposed to take the corresponding ImplementationDataType)
because the limits defined on the ImplementationDataType) may be wider than
the limits of the ApplicationPrimitiveDataType ((see subsection "Data Types
for Single Values" in the AUTOSAR SW-C Template [2]).

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[SWS_Rte_03993] d For AUTOSAR data types which have an invalidValue speci-

fied, the Module Interlink Types Header File shall contain the definition
1 #define InvalidValue_<prefix><DataType> <invalidValue><suffix>

where
<prefix> is the optional literalPrefix attribute defined by the Included-DataTypeSet
referring the AutosarDataType
<DataType> is the short name of the data type.
<invalidValue> is the value defined as invalidValue for the data type.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c()
[SWS_Rte_03994] d The Module Interlink Types Header File shall include the
definitions of all invalidValue constants used by this Basic Software Mod-
ule for each combination of different literalPrefix and ApplicationPrimi-
tiveDataType when the same ImplementationDataType or Application-
PrimitiveDataType is referenced via different IncludedDataTypeSets. c
(SRS_Rte_00252)

6.4.5 Data Types with bitfield conversions

AutosarDataTypes associated with a CompuMethod of category

BITFIELD_TEXTTABLE support the concatenation of a value set inside a single
scalar variable. Thereby single bits may get an individual (boolean) meaning or a set
of bits is used to carry an enumeration. Please note that those data types are not
mapped to C bit fields rather than to scalars (e.g. uint8). Thereby the RTE Generator
provides a set of definitions for the "Bit Mask", "Bit Start Position" and the "Number
of Bits" in order to support the usage of the AUTOSAR Bit Handling Routines [32] for
those kind of data types. For some operations on a set of bits (the set may contain only
1 bit) the AUTOSAR bitfield library requires a single contiguous bit field which means
that all bits set to 1 in the in the CompuScale.mask attribute value are adjoining, e.g.
0b00010000 or 0b00111100.
[SWS_Rte_03995] d For each unique CompuScale.shortLabel / CompuS-
cale.mask value pair for a CompuScale which is located in the compuInternal-
ToPhys container of a CompuMethod referenced by an ImplementationDataType
or ApplicationPrimitiveDataType according [SWS_Rte_03984] with category
BITFIELD_TEXTTABLE the Module Interlink Types Header File shall contain a defini-
tion for the bit field mask
1 #ifndef <prefix><BflMaskLabel>_BflMask
2 #define <prefix><BflMaskLabel>_BflMask <mask><suffix>
3 #endif /* <prefix><BflMaskLabel>_BflMask */

where
<BflMaskLabel> is the value of the attribute CompuScale.shortLabel

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<mask> is the value of the attribute mask

<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType using the CompuMethod.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00252)
[SWS_Rte_03996] d For each unique CompuScale.shortLabel / CompuS-
cale.mask value pair for a CompuScale with a single contiguous bit field which is
located in the compuInternalToPhys container of a CompuMethod referenced by
an ImplementationDataType or ApplicationPrimitiveDataType according
[SWS_Rte_03984] with category BITFIELD_TEXTTABLE the Module Interlink Types
Header File shall contain a definition for the bit start position
1 #ifndef <prefix><BflStartPnLabel>_BflPn
2 #define <prefix><BflStartPnLabel>_BfltPn <BflStartPnNumber><suffix>
3 #endif /* <prefix><BflStartPnLabel>_BfltPn */

where
<BitStartPnLabel> is the value of the attribute CompuScale.shortLabel
<BflStartPnNumber> is the number of the first bit in the attribute value CompuS-
cale.mask which is set to 1. Thereby the bit counting starts from 0 (LSB) to n (MSB).
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType using the CompuMethod.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00252)
[SWS_Rte_03997] d For each unique CompuScale.shortLabel / CompuS-
cale.mask value pair for a CompuScale with a single contiguous bit field which is
located in the compuInternalToPhys container of a CompuMethod referenced by
an ImplementationDataType or ApplicationPrimitiveDataType according
[SWS_Rte_03984] with category BITFIELD_TEXTTABLE the Module Interlink Types
Header File shall contain a definition for the bit field length
1 #ifndef <prefix><BflLengthLabel>_BflLn
2 #define <prefix><BflLengthLabel>_BflLn <BflLength><suffix>
3 #endif /* <prefix><BflLengthLabel>_BflLn */

where
<BflLengthLabel> is the value of the attribute shortLabel.
<BflLength> is the number of contiguous bits set to 1 in the attribute value CompuS-
cale.mask.
<prefix> is the optional literalPrefix attribute defined by the Included-
DataTypeSet referring the AutosarDataType using the CompuMethod.
<suffix> shall be "U" for unsigned data types and empty for signed data types. c
(SRS_Rte_00252)
Please note the example in section F.3.
[SWS_Rte_07415] d The requirements [SWS_Rte_03995], [SWS_Rte_03996], and
[SWS_Rte_03997] are only applied to CompuScales where the attribute shortLabel
is defined. c(SRS_Rte_00252)

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6.5 API Reference

This chapter defines the interface between a particular instance of a Basic Software
Module and the Basic Software Scheduler. The wild-card <bsnp> is the BSW Sched-
uler Name Prefix according [SWS_Rte_07593] and [SWS_Rte_07594].

6.5.1 SchM_Enter

Purpose: SchM_Enter function enters an exclusive area of an Basic Software

Module.
Signature: [SWS_Rte_07250] d
void SchM_Enter_<bsnp>[_<vi>_<ai>]_[<me>_]<name>()

Where here
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module,
<me> is the shortName of the BswModuleEntity and
<name> is the exclusive area name. The sub part in squared brack-
ets [<me>_] is emitted if the attribute BswExclusiveAreaPol-
icy.apiPrinciple is set to "perExecutable". The sub part in
squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. See [SWS_Rte_07528]. c
(SRS_Rte_00222, SRS_BSW_00347, SRS_Rte_00046)
Existence: [SWS_Rte_07251] d A SchM_Enter API shall be created for each
ExclusiveArea that is declared in the BswInternalBehav-
ior and which has an canEnterExclusiveArea association. c
(SRS_Rte_00222, SRS_Rte_00046)
Description: The SchM_Enter API call is invoked by an AUTOSAR BSW module
to define the start of an exclusive area.
Return Value: None.
Notes: The Basic Software Scheduler is not required to support nested in-
vocations of SchM_Enter for the same exclusive area.
[SWS_Rte_07252] d The Basic Software Scheduler shall permit calls
to SchM_Enter and SchM_Exit to be nested as long as different
exclusive areas are exited in the reverse order they were entered. c
(SRS_Rte_00222, SRS_Rte_00046)

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[SWS_Rte_CONSTR_09046] SchM_Enter and SchM_Exit API

may only be used by BswModuleEntitys describing its usage
d The SchM_Enter and SchM_Exit API may only be used by
BswModuleEntitys that contain a corresponding canEnterEx-
clusiveArea association c()
[SWS_Rte_CONSTR_09047] Nested call of SchM_Enter and
SchM_Exit API is restricted d The SchM_Enter and SchM_Exit
API may only be called nested if different exclusive areas are invoked;
in this case exclusive areas shall exited in the reverse order they were
entered. c()
[SWS_Rte_07578] d The Basic Software Scheduler shall sup-
port calls of SchM_Enter and SchM_Exit after initialization of
the OS but before the Basic Software Scheduler is initialized. c
(SRS_Rte_00222, SRS_Rte_00046)
[SWS_Rte_07579] d The Basic Software Scheduler shall sup-
port calls of SchM_Enter and SchM_Exit in the context of os
tasks, category 1 and category 2 interrupts. c(SRS_Rte_00222,
SRS_Rte_00046)
Note: the possible implementation mechanism for such an exclusive
area is limited in this case to mechanism available for the related
kind of context. For instance SuspendAllInterrupts and Re-
sumeAllInterrupts service of the OS are available for all kind of
context but GetResource and ReleaseResource is only available
for tasks and category 2 interrupts.
Within the AUTOSAR OS an attempt to lock a resource cannot fail
because the lock is already held. The lock attempt can only fail due
to configuration errors (e.g. caller not declared as accessing the re-
source) or invalid handle. Therefore the return type from this function
is void.
Mutual exclusion of tasks requesting the same exclusive area shall
be ensured across partition and core boundaries.

6.5.2 SchM_Exit

Purpose: SchM_Exit function leaves an exclusive area of an Basic Software

Module.
Signature: [SWS_Rte_07253] d
void
SchM_Exit_<bsnp>[_<vi>_<ai>]_[<me>_]<name>()

Where

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<bsnp> is the BSW Scheduler Name Prefix according

[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module,
<me> is the shortName of the BswModuleEntity and
<name> is the exclusive area name. The sub part in squared brack-
ets [<me>_] is emitted if the attribute BswExclusiveAreaPol-
icy.apiPrinciple is set to "perExecutable". The sub part in
squared brackets [_<vi>_<ai>] is omitted if no vendorApiInfix
is defined for the Basic Software Module. See [SWS_Rte_07528]. c
(SRS_Rte_00222, SRS_BSW_00347, SRS_Rte_00046)
Existence: [SWS_Rte_07254] d A SchM_Exit API shall be created for each
ExclusiveArea that is declared in the BswInternalBehav-
ior and which has an canEnterExclusiveArea association.. c
(SRS_Rte_00222, SRS_Rte_00046)
Description: The SchM_Exit API call is invoked by an AUTOSAR BSW module
to define the end of an exclusive area.
Return Value: None.
Notes: The Basic Software Scheduler is not required to support nested in-
vocations of SchM_Exit for the same exclusive area.
Requirement [SWS_Rte_07252] permits calls to SchM_Exit and
SchM_Exit to be nested as long as different exclusive areas are
exited in the reverse order they were entered.
[SWS_Rte_CONSTR_09048] SchM_Exit API may only be used
by BswModuleEntitys that describe its usage d The SchM_Exit
API may only be used by BswModuleEntitys that contain a corre-
sponding canEnterExclusiveArea association c()

6.5.3 SchM_Call

Purpose: Invokes a Client-Server operation between BSW modules, possibly

crossing partition boundaries.
Signature: [SWS_Rte_08733] d
Std_ReturnType SchM_Call_<bsnp>[_<vi>_<ai>]_<name>(
[OUT <typeOfReturnValue> returnValue]
[IN|IN/OUT|OUT]<data_1>...
[IN|IN/OUT|OUT] <data_n>)

where there is a BSW module providing a en-

try which is the base for a generated function

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<typeOfReturnValue> <bsnp>[_<vi>_<ai>]_<name>(
<data_1>...<data_n>)
with <typeOfReturnValue> is the returnType of the referenced
BswModuleEntry. If the returnType of the referenced BswMod-
uleEntry is of type void or execution is asynchronous, this part
should be omitted.
<bsnp> is the BSW Scheduler Name Prefix of the BSW mod-
ule providing the entry according to [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> is the vendorApiInfix of the calling BSW module,
<name> is the shortName of the BswModuleClientServerEntry de-
fined with the role of requiredClientServerEntry.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_Rte_00243)
Existence: [SWS_Rte_08734] d A synchronous SchM_Call API shall be gen-
erated if a callPoint association to a BswSynchronousServer-
CallPoint exists and the BswSynchronousServerCallPoint
references a BswModuleClientServerEntry as calledEntry
and this BswModuleClientServerEntry is referenced by the
BswModuleDescription as a requiredClientServerEntry.
c(SRS_Rte_00243)
[SWS_Rte_08735] d An asynchronous SchM_Call API shall
be generated if a callPoint association to a BswAsyn-
chronousServerCallPoint exists and the BswAsyn-
chronousServerCallPoint references a BswModule-
ClientServerEntry as calledEntry and this BswModule-
ClientServerEntry is referenced by the BswModuleDescrip-
tion as a requiredClientServerEntry. c(SRS_Rte_00243)
A configuration that includes both synchronous and asynchronous
Call Points is invalid.
[SWS_Rte_CONSTR_09079] SchM_Call API may only be used by
the BswModuleEntity that describe its usage d The SchM_Call
API may only be used within the BswModuleEntity that refer-
ences the corresponding BswSynchronousServerCallPoint re-
spectively BswAsynchronousServerCallPoint using a call-
Point association. c()

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Description: Function to initiate Client-Server communication between BSW mod-

ules. The SchM_Call API is used for both synchronous and asyn-
chronous calls.
When the BswModuleClientServerEntry is called
the SchM shall invoke the referenced BswMod-
uleEntry providing the C-function with the signature
<bpns>[_<vi>_<ai>]_name(<data_1>...(<data_n>) on
the partition of the task assigned to the respective BswOpera-
tionInvokedEvent, or on the local partition if the BswOpera-
tionInvokedEvent is not mapped to a task.
[SWS_Rte_08736] d The OUT parameter returnValue shall only
exist if the returnType of BswModuleEntry is not void and the
SchM_Call is synchronous. c(SRS_Rte_00243)
[SWS_Rte_08737] d The datatype of the OUT parameter return-
Value shall be equal to returnType of the called BswModuleEn-
try. c(SRS_Rte_00243)
[SWS_Rte_08738] d The return value of the called BswModuleEn-
try shall be returned inside the OUT parameter returnValue. c
(SRS_Rte_00243)
[SWS_Rte_08739] d The SchM shall ensure that the BswMod-
uleEntity implementing a server operation has completed the pro-
cessing of a request before it begins processing the next request, if
call serialization is required by the server operation, i.e the isReen-
trant attribute of the corresponding BswModuleClientServer-
Entry which is referenced as providedClientServerEntry is
set to false and more than one BswModuleClientServerEntry
in the role requiredClientServerEntry references this server.
If the SchM_Call crosses partition borders, the call is mapped to
IOCSend_<id>(). c(SRS_Rte_00243)
The pointers to all parameters passed by reference must remain valid
until the API call returns.
Return Value: [SWS_Rte_08740] d The return value shall be used to indicate
infrastructure errors detected by the RTE during execution of the
SchM_Call call. c()
[SWS_Rte_08741] d SCHM_E_OK - The API call completed suc-
cessfully. c()
[SWS_Rte_08742] d SCHM_E_LIMIT - There are multiple out-
standing asynchronous calls of the same BswModuleEntry.
The invocation shall be discarded, the buffers of the return pa-
rameters shall not be modified. c()

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6.5.4 SchM_Result

Purpose: Get the result of an asynchronous call of a BswModuleEntry.

Signature: [SWS_Rte_08743] d
Std_ReturnType
SchM_Result_<bsnp>[_<vi>_<ai>]_<name>(
[OUT <typeOfReturnValue> returnValue]
[IN/OUT|OUT]<data_1> ...
[IN/OUT|OUT] <data_n>)

where there is a BSW module providing a en-

try which is the base for a generated function
<bsnp>[_<vi>_<ai>]_name(<data_1>...<data_n>)
with <bsnp> is the BSW Scheduler Name Prefix of the BSW
module sending the callback according to [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> is the vendorApiInfix of the calling BSW module,
<name> is the shortName of the BswModuleClientServerEntry de-
fined with the role of requiredClientServerEntry.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_Rte_00243)
[SWS_Rte_08420] d The OUT parameter returnValue shall exist
if the returnType of BswModuleEntry is different fromvoid. c
(SRS_Rte_00243)
[SWS_Rte_08421] d The datatype of the OUT parameter return-
Value shall be equal to returnType of the called BswModuleEn-
try. c(SRS_Rte_00243)
[SWS_Rte_08422] d The return value of the called BswModuleEn-
try shall be returned inside the OUT parameter returnValue. c
(SRS_Rte_00243)
Existence: [SWS_Rte_08744] d A non-blocking SchM_Result API shall
be generated if a callPoint association to a BswAsyn-
chronousServerCallResultPoint exists. c(SRS_Rte_00243)
[SWS_Rte_CONSTR_09076] SchM_Result API may only be
used by the BswModuleEntity that describe its usage d The
SchM_Result API may only be used within the BswModuleEntity
that references the corresponding BswAsynchronousServer-
CallResultPoint using a callPoint association. c()

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Description: The SchM_Result is used to collect the result of

an asynchronous call of a BswModuleEntry in-
voked by SchM_Call_<bsnp>[_<vi>_<ai>]_name(
<data_1>...<data_n>).
Using SchM_Result it is possible get back the result of call.
The SchM_Result API includes zero or more IN/OUT and OUT pa-
rameters to pass back results.
The pointers to all parameters passed by reference must remain valid
until the API call returns.
If the SchM_Result crosses partition borders, the callback is
mapped to IOCSend_<id>().
Return Value: The return value is used to indicate errors from either the
SchM_Result call itself or communication errors detected before the
API call was made.
[SWS_Rte_08745] d SCHM_E_OK - The API call completed suc-
cessfully. c()
[SWS_Rte_08746] d SCHM_E_NO_DATA - The BswModuleEn-
trys result is not available but no other error occurred within
the API call or the BswModuleEntry was not called using
SchM_Call. The buffers for the IN/OUT and OUT parameters
shall not be modified. c()
The SCHM_E_NO_DATA return value is not considered to be an er-
ror but rather indicate correct operation of the API call. When
SCHM_E_NO_DATA occurs, a BSW module is free to invoke
SchM_Result again and thus repeat the attempt to read the result.

6.5.5 SchM_Send

Purpose: Initiate an "explicit" sender-receiver transmission of data elements

with "event" semantic (queued) between BSW modules.
Signature: [SWS_Rte_08747] d
Std_ReturnType
SchM_Send_<bsnp>[_<vi>_<ai>]_<name>(IN <data>)

with <bsnp> is the BSW Scheduler Name Prefix of the BSW

module providing the data according to [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module providing the data,

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<ai> is the vendorApiInfix of the BSW module providing the

data,
<name> is the shortName of the VariableDataPrototype of this
sender-receiver connection.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_Rte_00243)
Existence: [SWS_Rte_08748] d The existence of a dataSendPoint associa-
tion to a providedData VariableDataPrototype shall result in
the generation of a SchM_Send API for the provided VariableDat-
aPrototype. c(SRS_Rte_00243)
[SWS_Rte_CONSTR_09077] SchM_Send API may only be used
by the BswModuleEntity that describes its usage d The
SchM_Send API may only be used within the BswModuleEntity
that references the VariableDataPrototype using a dataSend-
Point. c()
Description: When a BSW module writes data to a sender-receiver connection on
a system with the BSW running on multiple partitions, it shall invoke
SchM_Send_<bsnp>[_<vi>_<ai>]_<name>(<data>). The
SchM_Send API call initiates a sender-receiver communication
where the transmission occurs at the point the API call is made (cf.
explicit transmission). The SchM_Send API call includes the IN pa-
rameter <data> to pass the data element to write. The IN parameter
<data> is passed by value or reference according to the Imple-
mentationDataType as described in the section 5.2.6.5. If the IN
parameter <data> is passed by reference, the pointer must remain
valid until the API call returns.
Return Value: The return value is used to indicate errors detected by the SchM dur-
ing execution of the SchM_Send.
[SWS_Rte_08749] d SCHM_E_OK - data passed to communica-
tion service successfully. c()
[SWS_Rte_08750] d SCHM_E_LIMIT - an event has been dis-
carded due to a full queue by one of the partition local receivers.
c()
Notes: The SchM_Send API is used to transmit data with "events" semantics
which means that they are getting queued.
[SWS_Rte_08751] d In case of inter partition communication, the
SchM_Send API call shall cause an immediate transmission request.
c(SRS_Rte_00243)

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For inter-partition communication the IOC can be used for transmit-

ting the data to the other partition.
[SWS_Rte_08752] d If the VariableDataPrototype in the pro-
videdData role is connected to multiple VariableDataProto-
types in the role requiredData, then the SchM shall ensure that
writes to all receivers are independent. c(SRS_Rte_00243)
This ensures that an error detected by the SchM when writing to one
receiver does not prevent the transmission of this message to other
BSW modules.
[SWS_Rte_08753] d In case of intra partition communication, the
SchM_Send API call shall return after copying the data to RTE lo-
cal memory or using IOC buffers. c(SRS_Rte_00243)

6.5.6 SchM_Receive

Purpose: Perfoms an "explicit" sender-receiver reception of data elements with

"event" semantic (queued) between BSW modules.
Signature: [SWS_Rte_08754] d
Std_ReturnType
SchM_Receive_<bsnp>[_<vi>_<ai>]_<name>(OUT <data>)

with <bsnp> is the BSW Scheduler Name Prefix of the BSW

module reading the data according to [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module reading the data,
<ai> is the vendorApiInfix of the BSW module reading the data,
<name> is the shortName of the VariableDataPrototype of this
sender-receiver connection.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_Rte_00243)
Existence: [SWS_Rte_08755] d The existence of a dataReceivePoint asso-
ciation to a requiredData VariableDataPrototype shall result
in the generation of a SchM_Receive API for the required Vari-
ableDataPrototype. c(SRS_Rte_00243)
[SWS_Rte_CONSTR_09078] SchM_Receive API may only be
used by the BswModuleEntity that describes its usage d
The SchM_Receive API may only be used within the BswMod-
uleEntity that references the VariableDataPrototype using
a dataReceivePoint. c()

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Description: When a BSW module handles a BswDataReceivedEvent on a

system with the BSW running on multiple partitions, it shall in-
voke SchM_Receive_<bsnp>[_<vi>_<ai>]_<name>(<data>).
For a sender-receiver connection crossing partition boundaries, the
SchM shall then read the data from a shared buffer, where it has been
put by SchM_Send.
The SchM_Receive API call includes the OUT parameter <data>
to pass back the received data element.
The pointers to the OUT parameters must remain valid until the API
call returns.
Return Value: The return value is used to indicate errors detected by the SchM dur-
ing execution of the SchM_Receive or errors detected by the com-
munication system.
[SWS_Rte_08757] d SCHM_E_OK - data read successfully. c()
[SWS_Rte_08758] d SCHM_E_NO_DATA - no "events" (means
queued data) were received and no other error occurred when
the read was attempted. c()
[SWS_Rte_08756] d In case return value is SCHM_E_NO_DATA the
OUT parameters shall remain unchanged. c(SRS_Rte_00243)
The SCHM_E_NO_DATA return value is not considered to be an error
but rather indicates correct operation of the API call.

6.5.7 SchM_Switch

Purpose: Initiate a mode switch. The SchM_Switch API call is used for send-
ing of a mode switch notification by a Basic Software Mod-
ule.
Signature: [SWS_Rte_07255] d
Std_ReturnType
SchM_Switch_<bsnp>[_<vi>_<ai>]_<name>(
IN <mode>)

Where here
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module and
<name> is the provided (providedModeGroup) ModeDeclara-
tionGroupPrototype name.

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The sub part in squared brackets [_<vi>_<ai>] is omitted if no

vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_Rte_00215, SRS_BSW_00347)
Existence: [SWS_Rte_07256] d The existence of a managedModeGroup asso-
ciation to a providedModeGroup ModeDeclarationGroupPro-
totype shall result in the generation of a SchM_Switch API. c
(SRS_Rte_00215)
[SWS_Rte_CONSTR_09049] SchM_Switch API may only be
used by BswModuleEntitys that describe its usage d The
SchM_Switch API may only be used by BswModuleEntitys that
contain a corresponding managedModeGroup association c()
Description: The SchM_Switch triggers a mode switch for all connected required
(requiredModeGroup) ModeDeclarationGroupPrototypes.
The SchM_Switch API call includes exactly one IN parameter for
the next mode <mode>. The IN parameter <mode> is passed by
value according to the ImplementationDataType on which the
ModeDeclarationGroup is mapped. The type name shall be equal
to the ImplementationDataType symbol.
Return Value: The return value is used to indicate errors detected by the Basic Soft-
ware Scheduler during execution of the SchM_Switch call.
[SWS_Rte_07258] d SCHM_E_OK data passed to ser-
vice successfully. c(SRS_Rte_00213, SRS_Rte_00214,
SRS_Rte_00094)
[SWS_Rte_07259] d SCHM_E_LIMIT a mode switch has
been discarded due to a full queue. c(SRS_Rte_00213,
SRS_Rte_00214, SRS_Rte_00143)
Notes: SchM_Switch is restricted to ECU local communication.
If a mode instance is currently involved in a transition then the
SchM_Switch API will attempt to queue the request and return
[SWS_Rte_02667]. However if no transition is in progress for the
mode instance, the mode disablings and the activations of on-entry,
on-transition, and on-exit runnables for this mode instance are exe-
cuted before the SchM_Switch API returns [SWS_Rte_02665].
Note that the mode switch might be discarded when the queue is full
and a mode transition is in progress, see [SWS_Rte_02675].
[SWS_Rte_07286] d If the mode switched acknowledgment is
enabled, the RTE shall notify the mode manager when the
mode switch is completed. c(SRS_Rte_00213, SRS_Rte_00214,
SRS_Rte_00122)

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6.5.8 SchM_Mode

There exist two versions of the SchM_Mode APIs. Depending on the attribute en-
hancedModeApi in the basic software module description there shall be provided dif-
ferent versions of this API (see also 6.5.9).
Purpose: Provides the currently active mode of a (requiredModeGroup or
providedModeGroup) ModeDeclarationGroupPrototype.
Signature: [SWS_Rte_07260] d
<return>
SchM_Mode_<bsnp>[_<vi>_<ai>]_<name>()

Where here
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module and
<name> is the (requiredModeGroup or providedModeGroup)
ModeDeclarationGroupPrototype name.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_Rte_00213, SRS_BSW_00347)
Existence: [SWS_Rte_07261] d If a accessedModeGroup association to
a providedModeGroup or requiredModeGroup ModeDecla-
rationGroupPrototype exists and if the attribute enhanced-
ModeApi of the BswModeSenderPolicy resp. BswModeRe-
ceiverPolicy is set to false a SchM_Mode API according to
[SWS_Rte_07260] shall be generated. c(SRS_Rte_00215)
Note: This ensures the availability of the SchM_Mode API for the
mode manager and mode user
[SWS_Rte_CONSTR_09050] SchM_Mode API may only be used
by BswModuleEntitys that describe its usage d The SchM_Mode
API may only be used by BswModuleEntitys that contain a cor-
responding managedModeGroup association or accessedMode-
Group association c()
Description: The SchM_Mode API tells the Basic Software Module which mode
of a required or provided ModeDeclarationGroupPrototype is
currently active. This is the information that the RTE uses for the
ModeDisablingDependencys. A new mode will not be indicated
immediately after the reception of a mode switch notification
from a mode manager, see section 4.4.4.During mode transitions,

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i.e. during the execution of runnables that are triggered on exiting

one mode or on entering the next mode, overlapping mode disablings
of two modes are active. In this case, the SchM_Mode API will return
RTE_TRANSITION_<ModeDeclarationGroup>.
The SchM_Mode will return the same mode for all required or pro-
vided ModeDeclarationGroupPrototypes that are connected.
(see [SWS_Rte_02630]).
Return Value: The return type of SchM_Mode is dependent on the Implementa-
tionDataType of the ModeDeclarationGroup. It shall return the
value of the ModeDeclarationGroupPrototype. The type name
shall be equal to the ImplementationDataType symbol.
[SWS_Rte_07262] d The SchM_Mode API shall return the following
values:
during mode transitions:
RTE_TRANSITION_<ModeDeclarationGroup>,
where <ModeDeclarationGroup> is the short name of the
ModeDeclarationGroup.
else:
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>,
where <ModeDeclarationGroup> is the short name of the
ModeDeclarationGroup and <ModeDeclaration> is the
short name of the currently active ModeDeclaration
c(SRS_Rte_00144)
Notes: None.

6.5.9 Enhanced SchM_Mode

Purpose: Provides the currently active mode of a (requiredModeGroup or

providedModeGroup) ModeDeclarationGroupPrototype. If
the corresponding mode machine instance is in transition addi-
tionally the values of the previous and the next mode are provided.
Signature: [SWS_Rte_07694] d
<return>
SchM_Mode_<bsnp>[_<vi>_<ai>]_<name>(
OUT <previousmode>,
OUT <nextmode>)
)

Where here

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<bsnp> is the BSW Scheduler Name Prefix according

[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module and
<name> is the (requiredModeGroup or providedModeGroup)
ModeDeclarationGroupPrototype name.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_Rte_00213, SRS_BSW_00347)
Existence: [SWS_Rte_08507] d The existence of a accessedModeGroup
association to a providedModeGroup or requiredModeGroup
ModeDeclarationGroupPrototype given that the attribute en-
hancedModeApi of the BswModeSenderPolicy resp. BswMod-
eReceiverPolicy is set to true a SchM_Mode API according to
[SWS_Rte_07694] shall be generated. c(SRS_Rte_00215)
Note: This ensures the availability of the SchM_Mode API for the
mode manager and mode user
[SWS_Rte_CONSTR_09051] SchM_Mode API may only be used
by BswModuleEntitys that describe its usage d The SchM_Mode
API may only be used by BswModuleEntitys that contain a cor-
responding managedModeGroup association or accessedMode-
Group association c()
Description: The SchM_Mode API tells the Basic Software Module which mode
of a required or provided ModeDeclarationGroupPrototype is
currently active. This is the information that the RTE uses for the
ModeDisablingDependencys. A new mode will not be indicated
immediately after the reception of a mode switch notification
from a mode manager, see section 4.4.4.During mode transitions,
i.e. during the execution of runnables that are triggered on exiting
one mode or on entering the next mode, overlapping mode disablings
of two modes are active. In this case, the SchM_Mode API will re-
turn RTE_TRANSITION_<ModeDeclarationGroup>. The param-
eter <previousmode> then contains the mode currently being left.
The parameter <nextmode> contains the mode being entered.
The SchM_Mode will return the same mode for all required or pro-
vided ModeDeclarationGroupPrototypes that are connected.
(see [SWS_Rte_02630]).
Return Value: The return type of SchM_Mode is dependent on the Implementa-
tionDataType of the ModeDeclarationGroup. It shall return the
value of the ModeDeclarationGroupPrototype. The type name
shall be equal to the ImplementationDataType symbol.

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[SWS_Rte_08509] d During transitions SchM_Mode API shall return

the following values:
the return value shall be
RTE_TRANSITION_<ModeDeclarationGroup>
<previousmode> shall contain the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the mode being left,
<nextmode> shall contain the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>
of the mode being entered,
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup.
c(SRS_Rte_00144)
[SWS_Rte_08510] d If the mode machine instance is in a de-
fined mode SchM_Mode shall return the follwing values:
the return value shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>,
<previousmode> shall contain the value of the
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>,
<nextmode> shall contain the the value of
RTE_MODE_<ModeDeclarationGroup>_<ModeDeclaration>,
where <ModeDeclarationGroup> is the short name of the Mode-
DeclarationGroup and <ModeDeclaration> is the short name
of the currently active ModeDeclaration.
c(SRS_Rte_00144)
Notes: None.

6.5.10 SchM_SwitchAck

Purpose: Provide access to acknowledgment notifications for mode communi-

cation.
Signature: [SWS_Rte_07556] d
Std_ReturnType
SchM_SwitchAck_<bsnp>[_<vi>_<ai>]_<name>()

Where here
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],

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<vi> is the vendorId of the calling BSW module,

<ai> vendorApiInfix of the calling BSW module and
<name> is the provided (provideModeGroup) ModeDeclara-
tionGroupPrototype name.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_BSW_00310, SRS_Rte_00213)
Existence: [SWS_Rte_07557] d Acknowledgement is enabled for a provided
(providedModeGroup) ModeDeclarationGroupPrototype by
the presence of an ackRequest attribute of the BswModeSender-
Policy. c(SRS_Rte_00213, SRS_Rte_00122)
[SWS_Rte_07558] d A non-blocking SchM_SwitchAck API shall
be generated for a provided (providedModeGroup) ModeDecla-
rationGroupPrototype if acknowledgement is enabled and a
managedModeGroup association references the providedMode-
Group ModeDeclarationGroupPrototype. c(SRS_Rte_00213,
SRS_Rte_00122)
[SWS_Rte_CONSTR_09052] SchM_SwitchAck API may only be
used by BswModuleEntitys that describe its usage d The
SchM_SwitchAck API may only be used by BswModuleEntitys
that contain a corresponding managedModeGroup association c()
Description: The SchM_SwitchAck API takes no parameters the return value
is used to indicate the acknowledgement status to the caller.
Return Value: The return value is used to indicate the status status and errors
detected by the Basic Software Scheduler during execution of the
Rte_SwitchAck call.
[SWS_Rte_07560] d SCHM_E_NO_DATA (non-blocking read)
no error is occurred when the SchM_SwitchAck read was at-
tempted. c(SRS_Rte_00213, SRS_Rte_00122)
[SWS_Rte_07561] d SCHM_E_TRANSMIT_ACK For communi-
cation of mode switches, this indicates, that the BswSchedu-
lableEntitys on the transition have been executed and the
mode disablings have been switched to the new mode (see
[SWS_Rte_02587]). c(SRS_Rte_00213, SRS_Rte_00122)
[SWS_Rte_07055] d SCHM_E_TIMEOUT The configured timeout
exceeds before the mode transition was completed.
OR:
The partition of the mode users is stopped or restarting or
has been restarted while the mode switch was requested. c
(SRS_Rte_00213, SRS_Rte_00122)

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The SCHM_E_TRANSMIT_ACK return value is not considered to be

an error but rather indicates correct operation of the API call.
When SCHM_E_NO_DATA occurs, a Basic Software Module is free to
reinvoke SchM_SwitchAck and thus repeat the attempt to read the
mode switch acknowledgment status.
The SCHM_E_TIMEOUT return value can denote a stopped or restart-
ing partition even for the SchM_SwitchAck API in case of a common
mode machine instance.
Notes: If multiple transmissions on the same provided (providedMode-
Group) ModeDeclarationGroupPrototype are outstanding it is
not possible to determine which is acknowledged first. If this is im-
portant, transmissions should be serialized with the next occurring
only when the previous transmission has been acknowledged or has
timed out.

6.5.11 SchM_Trigger

Purpose: Triggers the activation of connected BswSchedulableEntitys of

the same or other Basic Software Modules.
Signature: [SWS_Rte_07263] d
signature without queuing support:
void
SchM_Trigger_<bsnp>[_<vi>_<ai>]_<name>()

signature with queuing support:

Std_ReturnType
SchM_Trigger_<bsnp>[_<vi>_<ai>]_<name>()

Where here
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module and
<name> is the released (releasedTrigger) Trigger name.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528].

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The signature for queuing support shall be generated by the RTE

generator if the swImplPolicy of the Trigger is set to queued. c
(SRS_Rte_00218, SRS_BSW_00347)
Existence: [SWS_Rte_07264] d The existence of a issuedTrigger associa-
tion to the released (releasedTrigger) Trigger shall result in the
generation of a SchM_Trigger API. c(SRS_Rte_00218)
[SWS_Rte_CONSTR_09053] SchM_Trigger API may only be
used by the BswModuleEntitys that describe its usage d The
SchM_Trigger API may only be used by the BswModuleEntity
that contains the corresponding issuedTrigger association. c()
Description: The SchM_Trigger triggers an execution for all BswSchedu-
lableEntitys whose BswExternalTriggerOccurredEvent is
associated to connected required Trigger.
Return Value: None in case of signature without queuing support.
[SWS_Rte_06722] d The SchM_Trigger API shall return the follow-
ing values:
SCHM_E_OK if the trigger was successfully queued or if no queue
is configured
SCHM_E_LIMIT if the trigger was not queued because the max-
imum queue size is already reached.
in the case of signature with queuing support. c(SRS_Rte_00235)
Notes: SchM_Trigger is restricted to ECU local communication.

6.5.12 SchM_ActMainFunction

Purpose: Triggers the activation of the BswSchedulableEntity which is as-

sociated with an activationPoint of the same or Basic Software
Module.
Signature: [SWS_Rte_07266] d
signature without queuing support:
void
SchM_ActMainFunction_<bsnp>[_<vi>_<ai>]_<name>()

signature with queuing support:

Std_ReturnType
SchM_ActMainFunction_<bsnp>[_<vi>_<ai>]_<name>()

Where here

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<bsnp> is the BSW Scheduler Name Prefix according

[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module and
<name> is the associated BswInternalTriggeringPoint short
name.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528].
The signature for queuing support shall be generated by the RTE
generator if the swImplPolicy of the BswInternalTriggering-
Point is set to queued. c(SRS_Rte_00218, SRS_BSW_00347)
Existence: [SWS_Rte_07267] d The existence of an activationPoint shall
result in the generation of a SchM_ActMainFunction API. c
(SRS_Rte_00218)
[SWS_Rte_CONSTR_09054] SchM_ActMainFunction API may
only be used by the BswModuleEntitys that describe its us-
age d The SchM_ActMainFunction API may only be used by the
BswModuleEntity that contains the corresponding activation-
Point association. c()
Description: The SchM_ActMainFunction triggers an execution for all
BswSchedulableEntitys whose BswInternalTriggerOc-
curredEvent is associated by activationPoint.
Return Value: None in case of signature without queuing support.
[SWS_Rte_06723] d The SchM_ActMainFunction API shall return
the following values:
SCHM_E_OK if the trigger was successfully queued or if no queue
is configured
SCHM_E_LIMIT if the trigger was not queued because the max-
imum queue size is already reached.
in the case of signature with queuing support. c(SRS_Rte_00235)
Notes: SchM_ActMainFunction is restricted to ECU local communication.

6.5.13 SchM_CData

Purpose: Provide access to the calibration parameter of a Basic Software Mod-

ule defined internally. The ParameterDataPrototype in the role

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perInstanceParameter is used to define Basic Software Module

internal calibration parameters. Internal because the Parameter-
DataPrototype cannot be reused outside the Basic Software Mod-
ule. Access is read-only. Each instance has an own data value asso-
ciated with it.
Signature: [SWS_Rte_07093] d
<return> SchM_CData_<bsnp>[_<vi>_<ai>]_<name>()

Where here
<bsnp> is the BSW Scheduler Name Prefix according
[SWS_Rte_07593] and [SWS_Rte_07594],
<vi> is the vendorId of the calling BSW module,
<ai> vendorApiInfix of the calling BSW module and
<name> is the shortName of the ParameterDataPrototype.
The sub part in squared brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_BSW_00347, SRS_Rte_00155)
Existence: [SWS_Rte_07094] d An SchM_CData API shall be created for each
defined ParameterDataPrototype in the role perInstancePa-
rameter c(SRS_Rte_00155)
Description: The SchM_CData API provides access to the defined calibration pa-
rameter within a Basic Software Module. The actual data values for
a Basic Software Module instance may be set after component com-
pilation.
Return Value: The SchM_CData return value provide access to the data value of the
ParameterDataPrototype in the role perInstanceParameter.
The return type of SchM_CData is dependent on the Implementa-
tionDataType of the ParameterDataPrototype and can either
be a value or a pointer to the location where the value can be ac-
cessed. Thus the component does not need to use type casting to
convert access to the ParameterDataPrototype data.
For details of the <return> value definition see section 5.2.6.6.
[SWS_Rte_07095] d The return value of the corresponding
SchM_CData API shall provide access to the calibration parame-
ter value specific to the instance of the Basic Software Module. c
(SRS_Rte_00155)
Notes: None.

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6.5.14 SchM_Pim

Purpose: Provide access to the defined per-instance memory (section) of a

Basic Software Module.
Signature: [SWS_Rte_06203] d
<return> SchM_Pim_<bsnp>[_<vi>_<ai>]_<name>()

with <bsnp> is the BSW Scheduler Name Prefix of the BSW

module reading the data according to [SWS_Rte_07593] and
[SWS_Rte_07594],
<vi> is the vendorId of the BSW module reading the data,
<ai> is the vendorApiInfix of the BSW module reading the data,
<name> is the shortName of the VariableDataPrototype de-
fined in the role arTypedPerInstanceMemory.
The sub part in square brackets [_<vi>_<ai>] is omitted if no
vendorApiInfix is defined for the Basic Software Module. See
[SWS_Rte_07528]. c(SRS_BSW_00347, SRS_Rte_00075)
Existence: [SWS_Rte_06204] d A SchM_Pim API shall be created for each
defined VariableDataPrototype in the role arTypedPerIn-
stanceMemory within the Basic Software Module description. c
(SRS_Rte_00075)
Description: The SchM_Pim API provides access to the arTypedPerInstance-
Memory defined in the context of a BswInternalBehavior of a
Basic Software Module description.
Return Value: [SWS_Rte_06205] d The API returns a typed reference (in C a typed
pointer) to the arTypedPerInstanceMemory. c(SRS_Rte_00051,
SRS_Rte_00075)
Notes: For an arTypedPerInstanceMemory the
<return reference> is defined by the associated Au-
tosarDataType (see [SWS_Rte_07161]). For details of the
<return reference> definition see section 5.2.6.7.

6.6 Bsw Module Entity Reference

An AUTOSAR Basic Software Module defines one or more BSW module entities.
A BSW Module Entity is a piece of code with a single entry point and an associate
set of attributes. In contrast to runnable entities which are exclusively scheduled by
the RTE only a subset of the BSW module entities, the BswSchedulableEntitys
and BswCalledEntitys are called by the Basic Software Scheduler. Others might

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implement C function interfaces which are directly called by other BSW modules or
interrupts which are called by OS / interrupt controller.
A Basic Software Module Description provides definitions for each BswModuleEn-
tity within the BSW Module. The Basic Software Scheduler triggers the execution of
BswSchedulableEntitys and BswCalledEntitys in response to different Bsw-
Events.
The BswCalledEntitys are triggered by BswOperationInvokedEvents, the
BswSchedulableEntitys by BswScheduleEvents.
For BSW modules implemented using C or C++ the entry point of a BswSchedu-
lableEntity is implemented by a function with global scope defined within a BSW
Modules source code. The following sections consider the function signature and pro-
totype.

6.6.1 Signature

The definition of all BswSchedulableEntitys, whatever the BswScheduleEvent

that triggers their execution, follows the same basic form.
Purpose: Trigger a BswSchedulableEntity if the related BswSched-
uleEvent defined within the BswModuleDescription is raised.
Signature: [SWS_Rte_07282] d
FUNC(void, <memclass>) <bsnp>[_<vi>_<ai>]_<name>(
[IN SchM_ActivatingEvent_<name> <activation>])

c(SRS_BSW_00347, SRS_Rte_00211, SRS_Rte_00213,

SRS_Rte_00216, SRS_Rte_00238)
The usage of SchM_ActivatingEvent is optional and defined in
[SWS_Rte_08056].
For BswCalledEntitys the signature contains the parameters and return type. It can
be seen in [SWS_Rte_08765].
Purpose: Trigger a BswCalledEntity if the related BswOperationIn-
vokedEvent defined within the BswModuleDescription is raised.
Signature: [SWS_Rte_08765] d
FUNC(<returnType>, <memclass>) <bsnp>[_<vi>_<ai>]_<name>(
[IN|IN/OUT|OUT] <parameter_1>...
[IN|IN/OUT|OUT] <parameter_n>)

c(SRS_BSW_00347, SRS_Rte_00241, SRS_Rte_00243)

There is currently no possibility to obtain the activating BswOpera-
tionInvokedEvent of a BswCalledEntity.
Where here for both of them

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<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and

[SWS_Rte_07594],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module
<name> is the substring after "<bsnp>_" of the BswModuleEntry shortName re-
ferred as implementedEntry. However if "<bsnp>_" is not the prefix of the related
BswModuleEntry shortName then <name> shall be the BswModuleEntry short-
Name.
<memclass> is the Compiler Abstraction Memory Class according
[SWS_Rte_06739] and [SWS_Rte_06740].
<returnType> is the return type defined in the SwServiceArg in the role re-
turnType of the BswModuleEntry which is referenced by the BswModule-
ClientServerEntry in the role encapsulatedEntry. If no type is defined, the
<returnType> is of type void.
<parameter_x> are the arguments defined in the SwServiceArgs in the role
argument of the BswModuleEntry which is referenced by the BswModule-
ClientServerEntry in the role encapsulatedEntry. For each argument the type
has to be give according to [SWS_Rte_08766].
The sub part in square brackets [_<vi>_<ai>] is omitted if no vendorApiInfix is
defined for the Basic Software Module. See [SWS_Rte_07528].
[SWS_Rte_08766] d The datatype of the argument is depending on SwServiceArgs.
For category of SwServiceArg of type TYPE_REFERENCE:
If the ImplementationDataType in the role implementationDataType of the
SwDataDefProps of the SwServiceArg resolves to a primitive and the direc-
tion of the SwServiceArg is IN, the datatype of the argument is defined by
the ImplementationDataType (possibly referred over a chain of Implementa-
tionDataTypes of category TYPE_REFERENCE) in the role implementation-
DataType of the SwDataDefProps of the SwServiceArg which represents the ar-
gument.
If the ImplementationDataType in the role implementationDataType of the
SwDataDefProps of the SwServiceArg resolves to a pointer type where the final
pointer target is a primitive or composite and the direction of the SwServiceArg
is IN, INOUT or OUT, the datatype of the argument is defined by the SwPointer-
TargetProps element referred by the ImplementationDataType of category
DATA_REFERENCE (possibly referred over a chain of ImplementationDataTypes
of category TYPE_REFERENCE).
For category of SwServiceArg of type DATA_REFERENCE:
If the SwPointerTargetProps in the role swPointerTargetProps of the Sw-
DataDefProps of the SwServiceArg resolves to a primitive or composite and the
direction of the SwServiceArg is IN, INOUT or OUT, the datatype of the argument

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is defined by the SwPointerTargetProps in the SwDataDefProps of the SwSer-

viceArg which represents the argument (which may include resolving a chain of Im-
plementationDataTypes if the target category of the SwPointerTargetProps
is TYPE_REFERENCE).
For category of SwServiceArg of type FUNCTION_REFERENCE:
This case is not supported.
c(SRS_Rte_00243)
[SWS_Rte_CONSTR_09058] BswSchedulableEntity is not allowed to have ser-
vice arguments or return value d The Basic Software Scheduler requires that the
BswModuleEntry has no service arguments (unless SchM_ActivatingEvent is
enabled) and no return value. c()
[SWS_Rte_06739] d <memclass> shall be defined as
<snp>[_<vi>_<ai>]_<memClassSymbol> if a MemorySection.memClassSym-
bol and an associated MemorySection is defined and where
<snp> is the Section Name Prefix according [SWS_Rte_07595] and
[SWS_Rte_07596],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module, and
<memClassSymbol> is the value of the attribute memClassSymbol the of the Mem-
orySection associated via executableEntity reference to the BswModuleEn-
tity implementing the related BswModuleEntry. c()
[SWS_Rte_06740] d <memclass> shall be defined as
<snp>[_<vi>_<ai>]_<sadm> if no MemorySection.memclassSymbol is
applicable (see [SWS_Rte_06739]) and where
<snp> is the Section Name Prefix according [SWS_Rte_07595] and
[SWS_Rte_07596],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module, and
<sadm> is the shortName of the referred swAddrMethod. c()

6.6.2 Entry Point Prototype

The entry point defined in the Basic Software Modules source must be compatible
with the called function when the BswSchedulableEntity or BswCalledEntity is
triggered by the Basic Software Scheduler and therefore the RTE generator is required
to emit a prototype for the function.

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[SWS_Rte_04542] d The RTE generator shall emit an Entry Point Prototype

for each BswSchedulableEntitys implementedEntry in the Module Interlink
Header file. See chapter 6.3.2 according [SWS_Rte_07282]. c(SRS_Rte_00211,
SRS_Rte_00213, SRS_Rte_00216)
[SWS_Rte_04543] d The RTE generator shall emit an Entry Point Prototype for
each BswCalledEntitys implementedEntry in the Module Interlink Header file,
if the value of the attribute functionPrototypeEmitter is set to "RTE" . See
chapter 6.3.2 according [SWS_Rte_08765]. c(SRS_Rte_00211, SRS_Rte_00213,
SRS_Rte_00216)
[SWS_Rte_07195] d The RTE Generator shall wrap each BswSchedulableEntitys
Entry Point Prototype in the Module Interlink Header with the Memory Mapping and
Compiler Abstraction macros.
1 #define <snp>[_<vi>_<ai>]_START_SEC_<sadm>
2 #include "<MemMap_filename.h>"
3
4 FUNC(void, <memclass>) <bsnp>[_<vi>_<ai>]_<name>
5 ([IN SchM_ActivatingEvent_<name> <activation>]);
6

7 #define <snp>[_<vi>_<ai>]_STOP_SEC_<sadm>
8 #include "<MemMap_filename.h>"

The RTE Generator shall wrap each BswCalledEntitys Entry Point Prototype in the
Module Interlink Header with the Memory Mapping and Compiler Abstraction macros.
1 #define <snp>[_<vi>_<ai>]_START_SEC_<sadm>
2 #include "<MemMap_filename.h>"
3
4 FUNC(<returnType>, <memclass>) <bsnp>[_<vi>_<ai>]_<name>(
5 [IN|IN/OUT|OUT] <parameter_1> ... [IN|IN/OUT|OUT] <parameter_n>);
6
7 #define <snp>[_<vi>_<ai>]_STOP_SEC_<sadm>
8 #include "<MemMap_filename.h>"

Where here for both of them

<bsnp> is the BSW Scheduler Name Prefix according [SWS_Rte_07593] and
[SWS_Rte_07594],
<snp> is the Section Name Prefix according [SWS_Rte_07595] and
[SWS_Rte_07596],
<vi> is the vendorId of the BSW module,
<ai> is the vendorApiInfix of the BSW module,
<name> is the substring after "<bsnp>_" of the BswModuleEntry shortName re-
ferred as implementedEntry. However if "<bsnp>_" is not the prefix of the related
BswModuleEntry shortName then <name> shall be the BswModuleEntry short-
Name, and

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<returnType> is the return type defined in the SwServiceArg in the role re-
turnType of the BswModuleEntry which is referenced by the BswModule-
ClientServerEntry in the role encapsulatedEntry. If no type is defined, the
<returnType> is of type void.
<parameter_x> are the arguments defined in the SwServiceArgs in the role
argument of the BswModuleEntry which is referenced by the BswModule-
ClientServerEntry in the role encapsulatedEntry. For each argument the type
has to be give according to [SWS_Rte_08766].
<sadm> is the shortName of the referred swAddrMethod.
<memclass> is the Compiler Abstraction Memory Class according
[SWS_Rte_06739] and [SWS_Rte_06740]
<MemMap_filename.h> is the Applicable Memory Mapping Header File Name ac-
cording [SWS_Rte_07830], [SWS_Rte_07831] and [SWS_Rte_07832].
The sub part in square brackets [_<vi>_<ai>] is omitted if no vendorApiInfix is
defined for the Basic Software Module. See [SWS_Rte_07528].
The usage of SchM_ActivatingEvent is optional for BswSchedulableEntity
and defined in [SWS_Rte_08056]. It does currently not exist for BswCalledEntitys.
The Memory Mapping macros could wrap several Entry Point Prototype if these refer-
ring the same swAddrMethod. If the BswSchedulableEntity or the BswCalle-
dEntity does not refer a swAddrMethod the <sadm> is set to CODE. c
(SRS_Rte_00148, SRS_Rte_00149, SRS_Rte_00238)
[SWS_Rte_07830] d The RTE Generator shall emit the Applicable Memory Mapping
Header File Name <MemMap_filename.h> as <Msn>[_<vi>_<ai>]_MemMap.h
if the BswImplementation does not contain a DependencyOnArtifact in the
role requiredArtifact where the DependencyOnArtifact.category is set to
MEMMAP. <Msn> is the shortName (case sensitive) of the BswModuleDescription.
c(SRS_Rte_00148)
[SWS_Rte_07831] d The RTE generator shall emit the Applicable Memory Map-
ping Header File Name <MemMap_filename.h> identical to the attribute value
requiredArtifact.artifactDescriptor.shortLabel if the BswImplementa-
tion does contain exactly one DependencyOnArtifact in the role requiredAr-
tifact where the DependencyOnArtifact.category is set to MEMMAP. c
(SRS_Rte_00148)
[SWS_Rte_07832] d The RTE Generator shall emit the Applicable Memory Map-
ping Header File Name <MemMap_filename.h> identical to the attribute value re-
quiredArtifact.artifactDescriptor.shortLabel of the DependencyOnAr-
tifact in the role requiredArtifact where the DependencyOnArtifact.cat-
egory is set to MEMMAP and which is associated with the SectionNamePrefix
implementedIn of the MemorySection associated to the BswModuleEntity. c
(SRS_Rte_00148)

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Please note the example 6.2 of Entry Point Prototype.

[SWS_Rte_06533] d The RTE Generator shall wrap each Entry Point Prototype in
the Module Interlink Header file of a variant existent BswSchedulableEntity or
BswCalledEntity if the variability shall be implemented.
1 #if (<condition>)
2
3 <Entry Point Prototype>
4

5 #endif

where condition is the Condition Value Macro of the VariationPoint relevant for
the variant existence of the BswSchedulableEntity or BswCalledEntity (see
table 4.30), Entry Point Prototype is the code according an invariant Entry Point
Prototype (see also [SWS_Rte_07282], [SWS_Rte_04542]). c(SRS_Rte_00229)

6.6.3 Reentrancy

The BswSchedulableEntitys and BswCalledEntitys are declared within a BSW

Module. The Basic Software Module Scheduler ensures that concurrent activation of
the same BswSchedulableEntity or BswCalledEntity is only allowed if the im-
plemented entry points attribute "isReentrant" is set to "true" (see Section 4.2.6).
Consistency rule:
[SWS_Rte_07588] d The RTE Generator shall reject configurations where a
BswSchedulableEntity whose referenced BswModuleEntry in the role imple-
mentedEntry has its isReentrant attribute set to false, and this BswSchedu-
lableEntity is mapped to different tasks which can pre-empt each other. c
(SRS_Rte_00018)

6.6.4 Provide activating Bsw event

[SWS_Rte_08059] d If the provide activating Bsw event feature is enabled, the RTE
shall collect the activating Bsw events, which have the activationReasonRepre-
sentation reference defined, in the context of the OS task the executable entity
is mapped to in an activation vector at the corresponding bit position as defined in
[SWS_Rte_08058]. c(SRS_Rte_00238)
[SWS_Rte_08060] d If the provide activating Bsw event feature is enabled, the RTE
shall provide the collected activating Bsw events (activation vector) to the executable
entity API when the executable entity is "started". The activation vector shall be reset
immediately after it has been provided. c(SRS_Rte_00238)
Provision of the activating Bsw event is curerntly not availbale for BswCalledEntitys.

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Since it is possible that there is a time gap between the activation and the execution
(start) of a executable entity the subsequent activations are summed up and provided
with the start of the executable entity.
Activations during the execution of a executable entity are collected for the next start of
that runnable entity.

6.7 Basic Software Scheduler Lifecycle API Reference

6.7.1 SchM_Init

Service name: SchM_Init

Syntax: void SchM_Init(
const SchM_ConfigType* ConfigPtr
)
Service ID[hex]: 0x00
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): ConfigPtr Pointer to configuration set in Variant Post-Build.
Parameters (inout): None
Parameters (out): None
Return value: None
Description: SchM_Init is intended to allocate and initialize system resources used by
the Basic Software Scheduler part of the RTE for the core on which it is
called.

Table 6.2: SchM_Init

SchM_Init is intended to allocate and initialize system resources used by the Basic
Software Scheduler part of the RTE for the core on which it is called.
[SWS_Rte_07270] d
void SchM_Init(const SchM_ConfigType * ConfigPtr)

c(SRS_BSW_00101, SRS_Rte_00116)
[SWS_Rte_07271] d The SchM_Init API is always created. c(SRS_BSW_00101)
[SWS_Rte_07273] d SchM_Init shall return within finite execution time it must not
enter an infinite loop. c(SRS_BSW_00101)
SchM_Init may be implemented as a function or a macro.
SchM_Init is declared in the lifecycle header file Rte_Main.h.

6.7.2 SchM_Start

Service name: SchM_Start

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Syntax: void SchM_Start(

void
)
Service ID[hex]: 0x70
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: Basic Software Scheduler initialized. Shall be called before BswM_Init().

Table 6.3: SchM_Start

SchM_Start is intended to initialize the Basic Software Scheduler. It shall be called

before BswM_Init().
[SWS_Rte_04546] d
void SchM_Start(void)

c(SRS_BSW_00101)
[SWS_Rte_04547] d The SchM_Start API is always created. c(SRS_BSW_00101)
[SWS_Rte_04548] d SchM_Start shall return within finite execution time it must not
enter an infinite loop. c(SRS_BSW_00101)
SchM_Start may be implemented as a function or a macro.
SchM_Start is declared in the lifecycle header file Rte_Main.h.

6.7.3 SchM_StartTiming

Service name: SchM_StartTiming

Syntax: void SchM_StartTiming(
void
)
Service ID[hex]: 0x76
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: Start periodical events for BSW/SWCs. SchM_Init() has to be called be-
fore.

Table 6.4: SchM_StartTiming

SchM_StartTiming starts the Basic Software Scheduler part of the RTE.

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SchM_Start starts periodical events for BSW/SWCs. SchM_Init() has to be called

before.
[SWS_Rte_04549] d
void SchM_StartTiming(void)

c(SRS_BSW_00101)
[SWS_Rte_04550] d The SchM_StartTiming API is always created. c
(SRS_BSW_00101)
[SWS_Rte_04551] d SchM_StartTiming shall return within finite execution time it
must not enter an infinite loop. c(SRS_BSW_00101)
SchM_StartTiming may be implemented as a function or a macro.
SchM_StartTiming is declared in the lifecycle header file Rte_Main.h.
[SWS_Rte_CONSTR_09055] SchM_Init, SchM_Start, SchM_StartTiming shall
be called only once d SchM_Init, SchM_Start, SchM_StartTiming shall be
called only once by the EcuStateManager on each core after the basic software mod-
ules required by the Basic Software Scheduler part of the RTE are initialized. c()
These modules include:
OS

6.7.4 SchM_Deinit

Service name: SchM_Deinit

Syntax: void SchM_Deinit(
void
)
Service ID[hex]: 0x01
Sync/Async: Synchronous
Reentrancy: Non Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): None
Return value: None
Description: SchM_Deinit is used to finalize Basic Software Scheduler part of the RTE
of the core on which it is called.
This service releases all system resources allocated by the Basic Soft-
ware Scheduler part on that core.

Table 6.5: SchM_Deinit

SchM_Deinit finalizes the Basic Software Scheduler part of the RTE on the core it is
called.
[SWS_Rte_07274] d
void SchM_Deinit(void)

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c(SRS_BSW_00336)
[SWS_Rte_07275] d The SchM_Deinit API is always created. c(SRS_BSW_00336)
[SWS_Rte_CONSTR_09057] SchM_Deinit shall be called before shut down of
BSW d SchM_Deinit shall be called by the EcuStateManager before the basic soft-
ware modules required by Basic Software Scheduler part are shut down. c()
These modules include:
OS
[SWS_Rte_CONSTR_09056] SchM_Deinit API may only be used after the was
RTE finalized d The SchM_Deinit API may only be used after the RTE finalized
(after termination of the Rte_Stop) c()
[SWS_Rte_07277] d SchM_Deinit shall return within finite execution time. c
(SRS_BSW_00336)
SchM_Deinit may be implemented as a function or a macro.
SchM_Deinit is declared in the lifecycle header file Rte_Main.h.

6.7.5 SchM_GetVersionInfo

Service name: SchM_GetVersionInfo

Syntax: void SchM_GetVersionInfo(
Std_VersionInfoType* versioninfo
)
Service ID[hex]: 0x02
Sync/Async: Synchronous
Reentrancy: Reentrant
Parameters (in): None
Parameters (inout): None
Parameters (out): versioninfo Pointer to the memory location holding the version
information of the module
Return value: None
Description: Returns the version information of the Basic Software Scheduler.

Table 6.6: SchM_GetVersionInfo

[SWS_Rte_07278] d
void SchM_GetVersionInfo(Std_VersionInfoType * versioninfo)

c(SRS_BSW_00407)
[SWS_Rte_07279] d The SchM_GetVersionInfo API is only created if
RteSchMVersionInfoApi is set to true. c(SRS_BSW_00407)
[SWS_Rte_07280] d SchM_GetVersionInfo shall return the version information of
the RTE module which includes the Basic Software Scheduler. The version information
includes:

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Module Id
Vendor Id
Vendor specific version numbers
c(SRS_BSW_00407)
[SWS_Rte_07281] d The parameter versioninfo of the SchM_GetVersionInfo
shall point to the memory location holding the version information of the Basic Software
Scheduler. c(SRS_BSW_00407)
SchM_GetVersionInfo may be implemented as a function or a macro.
SchM_GetVersionInfo is declared in the lifecycle header file Rte_Main.h.
The existence of the API SchM_GetVersionInfo depends on the parameter
RteSchMVersionInfoApi.
Vendor specific version numbers shall represent build version which depends from
the RTE generator version and the input configuration. It is not in the scope if this
specification to standardize the way how the version numbers are created in detail
because these are the vendor specific version numbers.

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7 RTE ECU Configuration

The RTE provides the glue layer between the AUTOSAR software-components and the
Basic Software thus enabling several AUTOSAR software-components to be integrated
on one ECU. The RTE layer is shown in figure 7.1.

Figure 7.1: ECU Architecture RTE

The overall structure of the RTE configuration parameters is shown in figure 7.2. It has
to be distinguished between the configuration parameters for the RTE generator and
the configuration parameters for the generated RTE itself.
Most of the information needed to generate an RTE is already available in the ECU
Extract of the System Description [8]. From this extract also the links to the AUTOSAR
software-component descriptions and ECU Resource description are available. So
only additional information not covered by the three aforementioned formats needs to
be provided by the ECU Configuration description.
To additionally allow the most flexibility and freedom in the implementations of the RTE,
only configuration parameters which are common to all implementations are standard-
ized in the ECU Configuration Parameter definition. Any additional configuration pa-
rameters which might be needed to configure a full functional RTE have to be specified
using the vendor specific parameter definition mechanism described in the ECU Con-
figuration specification document [5].

7.1 RTE Module Configuration

Figure 7.2 shows the module configuration of the Rte and its sub-containers.

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Software Component template

Rte :EcucModuleDef RteGeneration :
+container EcucParamConfContainerDef ARElement
upperMultiplicity = 1 AtpBlueprint
lowerMultiplicity = 0 lowerMultiplicity = 1 AtpBlueprintable
upperMultiplicity = 1 AtpType
RteBypassSupportEnabled :
EcucBooleanParamDef SwComponentType
+type 1
RteSwComponentType : lowerMultiplicity = 0 {redefines
+parameter upperMultiplicity = 1 isOfType atpType}
EcucParamConfContainerDef
defaultValue = false
lowerMultiplicity = 0 *
+container
upperMultiplicity = * AtpPrototype
+reference RteComponentTypeRef :
SwComponentPrototype
EcucForeignReferenceDef

destinationType = SW-COMPONENT-TYPE

RteSwComponentInstance : RteSoftwareComponentInstanceRef :
EcucParamConfContainerDef EcucForeignReferenceDef
+reference
lowerMultiplicity = 0 destinationType = SW-COMPONENT-PROTOTYPE
upperMultiplicity = * upperMultiplicity = 1
lowerMultiplicity = 0

RteEventToTaskMapping :
+subContainer EcucParamConfContainerDef

upperMultiplicity = *
lowerMultiplicity = 0

+container RteExclusiveAreaImplementation :
+subContainer EcucParamConfContainerDef

upperMultiplicity = *
lowerMultiplicity = 0

RteNvRamAllocation :
+subContainer EcucParamConfContainerDef

upperMultiplicity = *
lowerMultiplicity = 0

+subContainer RteExternalTriggerConfig :
EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

RteOsInteraction :
+container EcucParamConfContainerDef

lowerMultiplicity = 1
upperMultiplicity = * RteInitializationRunnableBatch :
+container EcucParamConfContainerDef

upperMultiplicity = *
+container RtePostBuildVariantConfiguration : lowerMultiplicity = 0
EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = 1

Figure 7.2: RTE configuration overview

Module SWS Item ECUC_Rte_09000

Module Name Rte
Module Description Configuration of the Rte (Runtime Environment) module.
Post-Build Variant true
Support
Supported Config VARIANT-POST-BUILD, VARIANT-PRE-COMPILE
Variants
Included Containers
Container Name Multiplicity Scope / Dependency
RteBswGeneral 1 General configuration parameters of the Bsw
Scheduler section.
RteBswModuleInstance 0..* Represents one instance of a Bsw-Module configured
on one ECU.

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Container Name Multiplicity Scope / Dependency

RteGeneration 1 This container holds the parameters for the
configuration of the RTE Generation.
RteImplicitCommunication 0..* Configuration of the Implicit Communication behavior
to be generated.
RteInitializationBehavior 1..* Specifies the initialization strategy for variables
allocated by RTE with the purpose to implement
VariableDataPrototypes.

The container defines a set of

RteSectionInitializationPolicys and one
RteInitializationStrategy which is applicable for this set.
RteInitializationRunnable 0..* This container corresponds to an
Batch Rte_Init_<shortName of this container> function
invoking the mapped RunnableEntities.
RteOsInteraction 1..* Interaction of the Rte with the Os.
RtePostBuildVariant 0..1 Specifies the PostbuildVariantSets for each of the
Configuration PostBuild configurations of the RTE.

The shortName of this container defines the name of

the RtePostBuildVariant.
RteSwComponentInstance 0..* Representation of one SwComponentPrototype
located on the to be configured ECU. All subcontainer
configuration aspects are in relation to this
SwComponentPrototype.

The RteSwComponentInstance can be associated

with either a AtomicSwComponentType or
ParameterSwComponentType.
RteSwComponentType 0..* Representation of one SwComponentType for the
base of all configuration parameter which are affecting
the whole type and not a specific instance.

7.1.1 RTE Configuration Version Information

In order to identify the RTE Configuration version a dedicated RTE code has been
generated from the RTE Configuration information may contain one or more DOC-
REVISION elements in the ECUC-MODULE-CONFIGURATION-VALUES element of the
RTE Configuration (see example 7.1).
[SWS_Rte_05184] d The REVISION-LABEL shall be parsed according to the rules
defined in the Generic Structure Template [10] for RevisionLabelString allowing
to parse the three version informations for AUTOSAR:
major version: first part of the REVISION-LABEL
minor version: second part of the REVISION-LABEL
patch version: third part of the REVISION-LABEL
optional fourth part shall be used for documentation purposes in the Basic Soft-
ware Module Description (see section 3.4.3)

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If the parsing fails all three version numbers shall be set to zero. c(SRS_Rte_00233)
[SWS_Rte_05185] d If there are several DOC-REVISION elements in the input ECUC-
MODULE-CONFIGURATION-VALUES the newest according to the DATE shall be taken
into account.
If the search for the newest DOC-REVISION fails three version numbers shall be set to
zero. c(SRS_Rte_00233)

Example 7.1
<AUTOSAR xmlns="http://autosar.org/4.0.0" xmlns:xsi="http://www.w3.org
/2001/XMLSchema-instance" xsi:schemaLocation="http://autosar.org
/4.0.0 AUTOSAR.xsd">
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>Rte_Example</SHORT-NAME>
<ELEMENTS>
<ECUC-MODULE-CONFIGURATION-VALUES>
<SHORT-NAME>Rte_Configuration</SHORT-NAME>
<ADMIN-DATA>
<DOC-REVISIONS>
<DOC-REVISION>
<REVISION-LABEL>2.1.34</REVISION-LABEL>
<DATE>2009-05-09T00:00:00.0Z</DATE>
</DOC-REVISION>
<DOC-REVISION>
<REVISION-LABEL>2.1.35</REVISION-LABEL>
<DATE>2009-06-21T09:30:00.0Z</DATE>
</DOC-REVISION>
</DOC-REVISIONS>
</ADMIN-DATA>
<DEFINITION-REF DEST="ECUC-MODULE-DEF">/AUTOSAR/Rte</
DEFINITION-REF>
<CONTAINERS>
<!-- ... -->
</CONTAINERS>
</ECUC-MODULE-CONFIGURATION-VALUES>
</ELEMENTS>
</AR-PACKAGE>
</AR-PACKAGES>
</AUTOSAR>

7.2 RTE Generation Parameters

The parameters in the container RteGeneration are used to configure the RTE gen-
erator. They all need to be defined during pre-compile time.

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RteGeneration : RteDevErrorDetect :EcucBooleanParamDef

+parameter
EcucParamConfContainerDef
defaultValue = false
lowerMultiplicity = 1 RteDevErrorDetectUninit :
+parameter
upperMultiplicity = 1 EcucBooleanParamDef

RteCodeVendorId :EcucIntegerParamDef defaultValue = false

+parameter
min = 0
max = 65535

+literal COMPATIBILITY_MODE :
RteGenerationMode : EcucEnumerationLiteralDef
+parameter
EcucEnumerationParamDef
+literal
VENDOR_MODE :EcucEnumerationLiteralDef
defaultValue = COMPATIBILITY_MODE

+literal
RteOptimizationMode :
+parameter RUNTIME :EcucEnumerationLiteralDef
EcucEnumerationParamDef
+literal
MEMORY :EcucEnumerationLiteralDef
defaultValue = RUNTIME

RteToolChainSignificantCharacters :
EcucIntegerParamDef
+parameter
defaultValue = 31
lowerMultiplicity = 0
upperMultiplicity = 1
min = 0
RteVfbTraceClientPrefix :
max = 65535
+parameter EcucLinkerSymbolDef

RteVfbTraceEnabled :EcucBooleanParamDef upperMultiplicity = *

+parameter lowerMultiplicity = 0

defaultValue = false
+parameter RteMeasurementSupport :
EcucBooleanParamDef
RteVfbTraceFunction :EcucFunctionNameDef
+parameter defaultValue = false
upperMultiplicity = *
lowerMultiplicity = 0

RteValueRangeCheckEnabled :
+parameter
EcucBooleanParamDef

defaultValue = false
RteInExclusiveAreaCheckEnabled :
+parameter
EcucBooleanParamDef

defaultValue = true

+literal
RteCalibrationSupport : NONE :EcucEnumerationLiteralDef
EcucEnumerationParamDef +literal
+parameter SINGLE_POINTERED :EcucEnumerationLiteralDef
defaultValue = NONE
+literal
DOUBLE_POINTERED :EcucEnumerationLiteralDef
+literal
INITIALIZED_RAM :EcucEnumerationLiteralDef

+literal
RteIocInteractionReturnValue : RTE_IOC :EcucEnumerationLiteralDef
+parameter
EcucEnumerationParamDef
+literal
RTE_COM :EcucEnumerationLiteralDef
defaultValue = RTE_IOC

+literal
RteBypassSupport :EcucEnumerationParamDef NONE :EcucEnumerationLiteralDef

+parameter defaultValue = NONE +literal

COMPONENT_WRAPPER :EcucEnumerationLiteralDef

+literal
EXTENDED_BUFFER_ACCESS :
EcucEnumerationLiteralDef

Figure 7.3: RTE generation parameters

SWS Item [ECUC_Rte_09009]

Container Name RteGeneration

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Description This container holds the parameters for the configuration of the RTE
Generation.
Configuration Parameters

Name RteBypassSupport [ECUC_Rte_09113]

Description General switch to enable and select the bypass support method.
Multiplicity 1
Type EcucEnumerationParamDef
Range COMPONENT_WRAPPE
R
EXTENDED_BUFFER_AC
CESS
NONE
Default Value NONE
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteCalibrationSupport [ECUC_Rte_09007]

Description The RTE generator shall have the option to switch off support for
calibration for generated RTE code. This option shall influence
complete RTE code at once.
Multiplicity 1
Type EcucEnumerationParamDef
Range DOUBLE_POINTERED
INITIALIZED_RAM
NONE
SINGLE_POINTERED
Default Value NONE
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteCodeVendorId [ECUC_Rte_09086]

Description Holds the vendor ID of the generated Rte code.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 65535
Default Value

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Post-Build Variant false

Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteDevErrorDetect [ECUC_Rte_09008]

Description Switches the development error detection and notification on or off.
true: detection and notification is enabled.
false: detection and notification is disabled.

Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteDevErrorDetectUninit [ECUC_Rte_09085]

Description The Rte shall detect if it is started when its APIs are called, and the
BSW Scheduler shall check if it is initialized when its APIs are called.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local
dependency: Shall only be used when RteDevErrorDetect equals true.

Name RteGenerationMode [ECUC_Rte_09010]

Description Switch between the two available generation modes of the RTE
generator.
Multiplicity 1
Type EcucEnumerationParamDef
Range COMPATIBILITY_MODE
VENDOR_MODE
Default Value COMPATIBILITY_MODE

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Post-Build Variant false

Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteInExclusiveAreaCheckEnabled [ECUC_Rte_09126]

Description Enables the check for RTE_E_IN_EXCLUSIVE_AREA (for blocking
APIs).
Multiplicity 1
Type EcucBooleanParamDef
Default Value true
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteIocInteractionReturnValue [ECUC_Rte_09094]

Description Defines whether the return value of RTE APIs is based on RTE-IOC
interaction or RTE-COM interaction.
Multiplicity 1
Type EcucEnumerationParamDef
Range RTE_COM
RTE_IOC
Default Value RTE_IOC
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteMeasurementSupport [ECUC_Rte_09011]

Description The RTE generator shall have the option to switch off support for
measurement for generated RTE code. This option shall influence
complete RTE code at once.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value

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Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteOptimizationMode [ECUC_Rte_09012]

Description Switch between the two available optimization modes of the RTE
generator.
Multiplicity 1
Type EcucEnumerationParamDef
Range MEMORY
RUNTIME
Default Value RUNTIME
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteToolChainSignificantCharacters [ECUC_Rte_09013]

Description If present, the RTE generator shall provide the list of C RTE identifiers
whose name is not unique when only the first
RteToolChainSignificantCharacters characters are considered.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 65535
Default Value 31
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteValueRangeCheckEnabled [ECUC_Rte_09014]

Description If set to true the RTE generator shall enable the value range checking
for the specified VariableDataPrototypes.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteVfbTraceClientPrefix [ECUC_Rte_09016]

Description Defines an additional prefix for all VFB trace functions to be generated.
With this approach it is possible to have debugging and DLT trace
functions at the same time.
Multiplicity 0..*
Type EcucLinkerSymbolDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteVfbTraceEnabled [ECUC_Rte_09015]

Description The RTE generator shall globally enable VFB tracing when
RteVfbTrace is set to "true".
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteVfbTraceFunction [ECUC_Rte_09017]

Description The RTE generator shall enable VFB tracing for a given hook function
when there is a #define in the RTE configuration header file for the
hook function name and tracing is globally enabled. Example: #define
Rte_WriteHook_i1_p1_a_Start

This also applies to VFB trace functions with a

RteVfbTraceClientPrefix, e.g. Rte_Dbg_WriteHook_I1_P1_a_Start.
Multiplicity 0..*
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.3 RTE PreBuild configuration

In order to support PreBuild configuration variation of the Rte input (see also sec-
tion 4.7) the container EcucVariationResolver is providing a set of references to
PredefinedVariant. These define values for SwSystemconst.
Note that the information for the EcucVariationResolver is provided in the EcuC
part of the ECU Configuration, since it does not only influence the Rte but also many
other BSW Modules.

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EcuC :EcucModuleDef

upperMultiplicity = 1
lowerMultiplicity = 0

(from EcuC)
GenericStructureTemplate
+container
+includedVariant 0..*
ARElement
EcucVariationResolver : PredefinedVariantRef :EcucForeignReferenceDef
EcucParamConfContainerDef +reference VariantHandling::
destinationType = PREDEFINED-VARIANT PredefinedVariant

lowerMultiplicity = 0 lowerMultiplicity = 1
upperMultiplicity = 1 upperMultiplicity = *

+swSystemconstantValueSet 0..*

ARElement
VariantHandling::
SwSystemconstantValueSet

+swSystemconstantValue 0..*

VariantHandling::SwSystemconstValue

atpVariation
+ value :Numerical

+swSystemconst 1

ARElement
AtpDefinition
SystemConstant::
SwSystemconst

Figure 7.4: RTE PreBuild configuration

SWS Item [ECUC_EcuC_00009]

Container Name EcucVariationResolver
Description Collection of PredefinedVariant elements containing definition of values
for SwSystemconst which shall be applied when resolving the
variability during ECU Configuration.
Configuration Parameters

Name PredefinedVariantRef [ECUC_EcuC_00010]

Description
Multiplicity 1..*
Type Foreign reference to PREDEFINED-VARIANT
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

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No Included Containers

7.4 RTE PostBuild configuration

In order to support PostBuild configuration variation of the generated Rte (see also
section 4.7) the container RtePostBuildVariantConfiguration is used. Each
instance of this container specifies one PostBuild variant of the generated Rte. The
shortName of the container RtePostBuildVariantConfiguration specifies the
variant name.
The actual values for the PostBuildVariantCriterion are defined in a two step
approach:
1. The reference RtePostBuildUsedPredefinedVariant collects the Prede-
finedVariant elements.
2. Each PredefinedVariant element collects a set of PostBuildVari-
antCriterionValueSet.
3. Each PostBuildVariantCriterionValueSet defines the PostBuild-
VariantCriterionValues for a set of PostBuildVariantCriterion.
The basic idea is that
the PostBuildVariantCriterionValueSet can be provided by sub-system
engineer,
the PredefinedVariant can be designed by the Ecu integrator.

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RtePostBuildVariantConfiguration :
EcucParamConfContainerDef
GenericStructureTemplate
lowerMultiplicity = 0
upperMultiplicity = 1 +includedVariant
ARElement 0..*
VariantHandling::PredefinedVariant
+reference

RtePostBuildUsedPredefinedVariant :
EcucForeignReferenceDef

destinationType = PREDEFINED-VARIANT +postBuildVariantCriterionValueSet 0..*

lowerMultiplicity = 1
upperMultiplicity = * ARElement
VariantHandling::
PostBuildVariantCriterionValueSet

+postBuildVariantCriterionValue 0..*

VariantHandling::
PostBuildVariantCriterionValue

atpVariation
+ value :Integer

+variantCriterion 1

ARElement
AtpDefinition
VariantHandling::
PostBuildVariantCriterion

Figure 7.5: RTE PostBuild configuration

SWS Item [ECUC_Rte_09084]

Container Name RtePostBuildVariantConfiguration
Description Specifies the PostbuildVariantSets for each of the PostBuild
configurations of the RTE.

The shortName of this container defines the name of the

RtePostBuildVariant.
Configuration Parameters

Name RtePostBuildUsedPredefinedVariant [ECUC_Rte_09083]

Description Reference to the PredefinedVariant element which defines the values
for PostBuildVariationCriterion elements.
Multiplicity 1..*
Type Foreign reference to PREDEFINED-VARIANT
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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7.5 Handling of Software Component instances

When entities of Software-Components are to be configured there is the need to actu-
ally address the instances of the AtomicSwComponentType. Since the Ecu Extract
of System Description contains a flat view on the Ecus Software-Components [8] the
SwComponentPrototypes in the Ecu Extract already represent the instances of the
Software Components.
ARElement
ServiceSwComponentType
EcucValueCollection

+ecuExtract 1

ARElement
AtpStructureElement
System AtomicSwComponentType

+ containerIPduHeaderByteOrder :ByteOrderEnum [0..1]

+ ecuExtractVersion :RevisionLabelString [0..1]
+ pncVectorLength :PositiveInteger [0..1]
+ pncVectorOffset :PositiveInteger [0..1]
+ systemVersion :RevisionLabelString

atpVariation,atpSplitable
atpVariation Tags: ARElement
+rootSoftwareComposition 0..1 vh.latestBindingTime = AtpBlueprint
AtpPrototype systemDesignTime AtpBlueprintable
Identifiable AtpType
RootSwCompositionPrototype SwComponentType

+type 1
isOfType
{redefines
1
atpType}
{redefines
+softwareComposition atpType} isOfType

CompositionSwComponentType AtpPrototype atpVariation,atpSplitable

+component SwComponentPrototype

atpVariation,atpSplitable 0..*

atpVariation Tags:
vh.latestBindingTime =
atpVariation Tags: +port 0..* preCompileTime
vh.latestBindingTime =
atpVariation,atpSplitable AtpBlueprintable
postBuild
AtpPrototype
+connector * PortPrototype
AtpStructureElement
SwConnector

AssemblySwConnector 0..1 AbstractRequiredPortPrototype

+requester

instanceRef

+provider AbstractProvidedPortPrototype

instanceRef 0..1

Figure 7.6: Services in the ECU Configuration

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SWS Item [ECUC_Rte_09005]

Container Name RteSwComponentInstance
Description Representation of one SwComponentPrototype located on the to be
configured ECU. All subcontainer configuration aspects are in relation
to this SwComponentPrototype.

The RteSwComponentInstance can be associated with either a

AtomicSwComponentType or ParameterSwComponentType.
Configuration Parameters

Name RteSoftwareComponentInstanceRef [ECUC_Rte_09004]

Description Reference to a SwComponentPrototype.
Multiplicity 0..1
Type Foreign reference to SW-COMPONENT-PROTOTYPE
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Included Containers
Container Name Multiplicity Scope / Dependency
RteEventToTaskMapping 0..* Maps an instance of a RunnableEntity onto one OsTask
based on the activating RTEEvent. In the case of a
RunnableEntity executed via a direct function call this
RteEventToTaskMapping is still specified but no
RteMappedToTask element is included. The
RtePositionInTask parameter is necessary to provide an
ordering of events invoked by the same RTE API.
RteExclusiveArea 0..* Specifies the implementation to be used for the data
Implementation consistency of this ExclusiveArea.
RteExternalTriggerConfig 0..* Defines the configuration of External Trigger Event
Communication for Software Components
RteInternalTriggerConfig 0..* Defines the configuration of Inter Runnable Triggering
for Software Components
RteNvRamAllocation 0..* Specifies the relationship between the
AtomicSwComponentTypes NVRAMMapping / NVRAM
needs and the NvM module configuration.

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The container RteSwComponentInstance collects all the configuration information

related to one specific instance of a AtomicSwComponentType. The individual as-
pects will be described in the next sections.

7.5.1 RTE Event to task mapping

One of the major fragments of the RTE configuration is the mapping of AUTOSAR
Software-Components RunnableEntitys to OS Tasks. The parameters defined to
achieve this are shown in figure 7.7.

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RteSwComponentInstance : Software Component template

EcucParamConfContainerDef AtpStructureElement
ExecutableEntity
lowerMultiplicity = 0 RunnableEntity
upperMultiplicity = *
+ canBeInvokedConcurrently :Boolean
+ symbol :CIdentifier
+subContainer
+startOnEvent 0..1 +runnable
RteEventToTaskMapping : RteEventRef : +waitPoint *
+reference
EcucParamConfContainerDef EcucForeignReferenceDef
AbstractEvent +trigger Identifiable
upperMultiplicity = * destinationType = RTE-EVENT AtpStructureElement WaitPoint
1 *
lowerMultiplicity = 0 RTEEvent
+ timeout :TimeValue
RteMappedToTaskRef :
EcucReferenceDef
+reference
Os
upperMultiplicity = 1 +destination
lowerMultiplicity = 0 OsTask :
EcucParamConfContainerDef
+reference RteVirtuallyMappedToTaskRef : +destination
EcucReferenceDef upperMultiplicity = *
lowerMultiplicity = 0
RtePositionInTask :
EcucIntegerParamDef upperMultiplicity = 1
+parameter lowerMultiplicity = 0
upperMultiplicity = 1
lowerMultiplicity = 0 RteActivationOffset :
min = 0 EcucFloatParamDef
max = 65535
+parameter
min = 0
max = INF
lowerMultiplicity = 0
upperMultiplicity = 1

RteOsSchedulePoint : +literal
NONE :
EcucEnumerationParamDef EcucEnumerationLiteralDef
+parameter
lowerMultiplicity = 0 +literal
upperMultiplicity = 1 CONDITIONAL :
EcucEnumerationLiteralDef
+literal

UNCONDITIONAL :
EcucEnumerationLiteralDef OsEvent :
RteUsedOsEventRef : EcucParamConfContainerDef
+reference EcucReferenceDef +destination
upperMultiplicity = *
upperMultiplicity = 1 lowerMultiplicity = 0
lowerMultiplicity = 0
RteUsedOsAlarmRef : +destination OsAlarm :
+reference EcucReferenceDef EcucParamConfContainerDef

upperMultiplicity = 1 upperMultiplicity = *
RteUsedOsSchTblExpiryPointRef : lowerMultiplicity = 0 lowerMultiplicity = 0
+reference EcucReferenceDef +destination
OsScheduleTableExpiryPoint :
upperMultiplicity = 1 EcucParamConfContainerDef
lowerMultiplicity = 0 RteImmediateRestart :
EcucBooleanParamDef upperMultiplicity = *
+parameter
lowerMultiplicity = 1
defaultValue = false

RteUsedInitFnc :EcucReferenceDef +destination

+reference RteInitializationRunnableBatch :
EcucParamConfContainerDef
upperMultiplicity = 1
lowerMultiplicity = 0 upperMultiplicity = *
lowerMultiplicity = 0
RteEventPredecessorSyncPointRef :
+reference EcucReferenceDef

upperMultiplicity = 1 +destination
lowerMultiplicity = 0 RteSyncPoint :
EcucParamConfContainerDef

+destination
RteEventSuccessorSyncPointRef : lowerMultiplicity = 0
+reference EcucReferenceDef upperMultiplicity = *

upperMultiplicity = 1
lowerMultiplicity = 0

Figure 7.7: RTE Event to task mapping

The mapping is based on the RTEEvent because it is the source of the activation.
For each RunnableEntity which belongs to an AUTOSAR Software-Component in-

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stance mapped on the ECU there needs to be a mapping container specifying how this
RunnableEntity activation shall be handled.
[SWS_Rte_07843] d The RTE Generator shall reject configurations where the same
RTEEvent instance which can start a RunnableEntity is referenced by multiple task
mappings. c()
One major constraint is posed by the canBeInvokedConcurrently attribute of each
RunnableEntity because data consistency issues have to be considered.

7.5.1.1 Evaluation and execution order

Another important parameter is the RtePositionInTask which provides an order

of RunnableEntitys within the associated OsTask. When the task is executed pe-
riodically the RtePositionInTask parameter defines the order of execution within
the test. When the task is used to define a context for event activated RunnableEn-
titys the RtePositionInTask parameter defines the order of evaluation which ac-
tual RunnableEntity shall be executed. Thus providing means to define a determin-
istic delay between the beginning of execution of the task and the actual execution of
the RunnableEntitys code.
In case of triggered runnables, on-entry ExecutableEntitys, on-
transition ExecutableEntitys, on-exit ExecutableEntitys, and Mod-
eSwitchAck ExecutableEntitys the RtePositionInTask parameter defines
the order of evaluation which actual RunnableEntity shall be executed. All other
parameters or references are not required.

7.5.1.2 Direct function call

[SWS_Rte_06798] d If the ExecutableEntity is a server ExecutableEn-

tity, triggered ExecutableEntity, on-entry ExecutableEntity, on-
transition ExecutableEntity, on-exit ExecutableEntity, or a Mod-
eSwitchAck ExecutableEntity and shall be executed in the context of the caller
(i.e. using a direct function call) then the element RteEventToTaskMapping or
RteBswEventToTaskMapping still shall be provided to indicate that this RTEEvent
/ BswEvent has been considered in the mapping. c()
In case of server ExecutableEntitys its not possible that several servers get
invoked by the same API call. Therefore no further parameters in the RteEvent-
ToTaskMapping or RteBswEventToTaskMapping associated to the RTEEvent
/ BswEvent are required to configure the direct function call for server Exe-
cutableEntitys.
[SWS_Rte_06799] d For directly invoked server ExecutableEntitys no further
parameters or references are required, in particular RteMappedToTaskRef and
RtePositionInTask are omitted. c()

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In case of ExecutableEntitys which are not server ExecutableEntitys it is

possible that several ExecutableEntitys get invoked by the same API call when
direct function call configuration is used. Thereby the RteMappedToTaskRef / RteB-
swMappedToTaskRef is omitted. However the order of invocation needs to be config-
ured with the RtePositionInTask and RteBswPositionInTask parameters.
[SWS_Rte_06800] d For directly invoked triggered ExecutableEntity, on-
entry ExecutableEntity, on-transition ExecutableEntity, on-exit
ExecutableEntity, or a ModeSwitchAck ExecutableEntity the RtePosi-
tionInTask and RteBswPositionInTask parameter respectively is required to in-
dicate the order of invocation. c()
The invocation context for an ExecutableEntity can be either a task or
a function call. For ExecutableEntitys invoked from an OsTasks then
[SWS_Rte_CONSTR_09082] means that all mapped ExecutableEntities must have
unique values for the task to ensure predictable generation of the task body. In the case
of RTEEvents or BswEvents invoked by direct invocation from an RTE-generated API
function then [SWS_Rte_CONSTR_09082] means that all events invoked by the call-
ing function must have unique values to ensure predictable generation of the calling
API.
[SWS_Rte_CONSTR_09082] RtePositionInTask and RteBswPositionInTask
values shall be unique in a particular context d RtePositionInTask and RteB-
swPositionInTask shall have unique values for any particular task in the case RTE-
Events and BswEvents are mapped to OsTasks and shall have unique values for
any particular scope of direct invocation in the case that the a direct function call is
configured. The only exception are RtePositionInTask values for RteEventTo-
TaskMappings mapping the OperationInvokedEvents for several operations
to the same server runnables. c()
Concerning the mapping of several operations to the same server runnables
see [SWS_Rte_08001].

Example 7.2

BSW module BswA defines BswModuleEntity BswA_ProcessBigBang triggered

by BswExternalTriggerOccurredEvent Ev_BswA_ProcessBigBang
Software component SwcA defines RunnableEntity SwcA_Run_BigBang triggered
by ExternalTriggerOccurredEvent Ev_SwcA_Run_BigBang
Software component SwcB defines RunnableEntity SwcB_Run_BigBang triggered
by ExternalTriggerOccurredEvent Ev_SwcB_Run_BigBang
All required Triggers are connected to one common synchronized Trigger.
Scenario A
A configuration:

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Ev_BswA_ProcessBigBang is mapped to OsTask T_BIG_BANG with RtePosi-

tionInTask = 1
Ev_SwcA_Run_BigBang is mapped to OsTask T_BIG_BANG with RtePosition-
InTask = 2
Ev_SwcB_Run_BigBang is mapped to OsTask T_BIG_BANG with RtePosition-
InTask = 3
results in Rte code where the ExecutableEntitys are called in the context of the
OsTask T_BIG_BANG in the order:
1. Ev_BswA_ProcessBigBang
2. Ev_SwcA_Run_BigBang
3. Ev_SwcB_Run_BigBang
In addition [SWS_Rte_CONSTR_09082] is fulfilled even if the RtePositionInTask
values 1, 2, 3 are used for other RteEventToTaskMappings mapping to other Os-
Task or configuring a direct function call.
Scenario B
A configuration:
Ev_BswA_ProcessBigBang is not mapped to any OsTask and RtePositionIn-
Task = 1
Ev_SwcA_Run_BigBang is not mapped to any OsTask and RtePositionInTask =
2
Ev_SwcB_Run_BigBang is not mapped to any OsTask and RtePositionInTask =
results in Rte code where the ExecutableEntitys are called in the context of the
issuing Trigger API, e.g SchM_Trigger which invokes the ExecutableEntitys in
the order:
1. Ev_BswA_ProcessBigBang
2. Ev_SwcA_Run_BigBang
3. Ev_SwcB_Run_BigBang

7.5.1.3 Schedule Points

In order to allow explicit calls to the Os scheduler in an non-preemptive scheduling

setup, the configuration element RteOsSchedulePoint shall be used.
[SWS_Rte_05113] d The RTE Generator shall create an unconditional call to the
Os API Schedule after the execution call of the RunnableEntity if the RteOsS-
chedulePoint configuration parameter is set to UNCONDITIONAL. In the generated

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code the call to the Os API Schedule shall always be performed, even when the
RunnableEntity itself has not been executed (called). c()
Since the execution of a RunnableEntity may be performed (e.g. due to mode de-
pendent scheduling) the call of the Os API Schedule without any RunnableEntity
execution in between might occur. in order to prohibit such a call chain the CONDI-
TIONAL schedule point is available.
[SWS_Rte_05114] d The RTE Generator shall create a conditional call to the Os API
Schedule after the execution call of the RunnableEntity if the RteOsSchedule-
Point configuration parameter is set to CONDITIONAL. In the generated code the call
to the Os API Schedule shall be omitted when there was already a call to the Os API
Schedule before without any RunnableEntity execution in between. c()
[SWS_Rte_07042] d The Os API Schedule according [SWS_Rte_05113] and
[SWS_Rte_05114] shall be called after the data written with implicit write access by
the RunnableEntity are propagated to other RunnableEntitys as specified in
[SWS_Rte_07021], [SWS_Rte_03957], [SWS_Rte_07041] and [SWS_Rte_03584] c()
[SWS_Rte_07043] d The Os API Schedule according [SWS_Rte_05113] and
[SWS_Rte_05114] shall be called before the preemption area specific buffer used
for a implicit read access of the successor RunnableEntity are filled with actual data
by a copy action according [SWS_Rte_07020]. c()
[SWS_Rte_05115] d The RTE Generator shall create no call to the Os API Schedule
after the execution of the RunnableEntity if the RteOsSchedulePoint configura-
tion parameter is not present or is set to NONE. c()
[SWS_Rte_01373] d The RTE Generator shall support the independent setting
of RteOsSchedulePoint for RteEventToTaskMappings that map the same
RunnableEntity. c(SRS_Rte_00018)

7.5.1.4 Timeprotection support

[SWS_Rte_07801] d If RteMappedToTaskRef is configured but RteVirtual-

lyMappedToTaskRef is not configured, the RTE shall implement/evaluate the RTE-
Event that activates the RunnableEntity and execute the RunnableEntity in the
OsTask referenced by RteMappedToTaskRef. c()
[SWS_Rte_07802] d If both RteMappedToTaskRef and RteVirtuallyMappedTo-
TaskRef are configured, the RTE shall implement/evaluate the RTEEvent that acti-
vates the RunnableEntity in the OsTask referenced by RteVirtuallyMapped-
ToTaskRef but execute the RunnableEntity in the OsTask referenced by
RteMappedToTaskRef. The RTE shall implement this by an activation of the OsTask
referenced by RteMappedToTaskRef when the RTEEvent is evaluated as "TRUE" in
the OsTask referenced by RteVirtuallyMappedToTaskRef. c(SRS_Rte_00193)

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[SWS_Rte_07803] d The RTE shall reject the configuration if RteMappedTo-

TaskRef is not configured but RteVirtuallyMappedToTaskRef is configured. c
(SRS_Rte_00018)

7.5.1.5 Os Interaction

When an OsEvent is used to activate the OsTask the reference RteUsedOsEven-

tRef specifies which OsEvent is used.
When an OsAlarm is used to implement a TimingEvent or a BackgroundEvent
the reference RteUsedOsAlarmRef specifies which OsAlarm is used.
[SWS_Rte_07806] d If RteUsedOsAlarmRef is configured and RteEventRef refer-
ences a TimingEvent the RTE shall implement the TimingEvent with the OsAlarm
referenced by RteUsedOsAlarmRef. c(SRS_Rte_00232)
[SWS_Rte_07179] d If RteUsedOsAlarmRef is configured and RteEventRef ref-
erences a BackgroundEvent the RTE shall implement the BackgroundEvent with
the OsAlarm referenced by RteUsedOsAlarmRef. c()
When an OsScheduleTableExpiryPoint is used to implement a TimingEvent or
a BackgroundEvent the reference RteUsedOsSchTblExpiryPointRef specifies
which OsScheduleTableExpiryPoint is used.
[SWS_Rte_07807] d If RteUsedOsSchTblExpiryPointRef is configured
and RteEventRef references a TimingEvent the RTE shall implement the
TimingEvent with the OsScheduleTableExpiryPoint referenced by RteUse-
dOsSchTblExpiryPointRef. c(SRS_Rte_00232)
[SWS_Rte_07180] d If RteUsedOsSchTblExpiryPointRef is configured and
RteEventRef references a BackgroundEvent the RTE shall implement the Back-
groundEvent with the OsScheduleTableExpiryPoint referenced by RteUse-
dOsSchTblExpiryPointRef. c()
If neither RteUsedOsSchTblExpiryPointRef nor RteUsedOsAlarmRef are con-
figured and RteEventRef references a TimingEvent the RTE is free to imple-
ment the TimingEvent with the OsAlarm or OsScheduleTableExpiryPoint of
its choice.
[SWS_Rte_07808] d The RTE shall reject the configuration if both RteUsedOsAlarm-
Ref and RteUsedOsSchTblExpiryPointRef are configured. c(SRS_Rte_00018)
[SWS_Rte_07809] d The RTE shall reject the configuration if RteUsedOsAlarmRef or
RteUsedOsSchTblExpiryPointRef is configured and RteEventRef doesnt ref-
erence a TimingEvent or a BackgroundEvent. c(SRS_Rte_00018)

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AUTOSAR CP Release 4.3.0

7.5.1.6 Background activation

If neither RteUsedOsSchTblExpiryPointRef nor RteUsedOsAlarmRef is con-

figured and RteEventRef references a BackgroundEvent the RteMappedTo-
TaskRef has to reference the OsTask used for Background activation of RunnableEn-
tities and Basic Software Schedulable Entities on the related CPU core where the par-
tition of the software component is mapped.
The OsTask used for BackgroundEvent triggering has to have the lowest priority on
the core. There can only be one Background OsTask per CPU core.
[SWS_Rte_07181] d The RTE shall reject the configuration if
RteEventRef references a BackgroundEvent and
neither RteUsedOsAlarmRef nor RteUsedOsSchTblExpiryPointRef are
configured and
if RteMappedToTaskRef reference an OsTask which has not the lowest priority
of the core.
c(SRS_Rte_00018)

7.5.1.7 Constraints

There are some constraints which do apply when actually mapping the RunnableEn-
tity to an OsTask:
[SWS_Rte_05082] d The following restrictions apply to RTEEvents which are used
to activate RunnableEntity. OsEvents that are used to wakeUpFromWaitPoint
shall not be included in the mapping. c()
When a wakeUpFromWaitPoint is occurring the RunnableEntity resumes its ex-
ecution in the context of the originally activated OsTask.
[SWS_Rte_05083] d The RTE Generator shall reject configurations where a
RunnableEntity has its canBeInvokedConcurrently attribute set to false, and
this RunnableEntity is mapped to different tasks which can preempt each other. c()
[SWS_Rte_07229] d To evaluate [SWS_Rte_05083] in case of triggered
runnables which are activated by a direct function call ([SWS_Rte_07214],
[SWS_Rte_07224] and [SWS_Rte_07554]) the OsTask (context of the caller) is
defined by the RunnableEntitys containing the activating InternalTrigger-
ingPoint or ExternalTriggeringPoint. c(SRS_Rte_00162, SRS_Rte_00163,
SRS_Rte_00230)
[SWS_Rte_07155] d To evaluate [SWS_Rte_05083] in case of on-entry
ExecutableEntitys, on-transition ExecutableEntitys, on-exit Exe-
cutableEntitys, and ModeSwitchAck ExecutableEntitys which are acti-
vated by a direct function call the OsTask (context of the caller) is defined

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 Specification of RTE
AUTOSAR CP Release 4.3.0

by the RunnableEntitys containing the activating ModeSwitchPoint. c

(SRS_Rte_00143, SRS_Rte_00144)
SWS Item [ECUC_Rte_09020]
Container Name RteEventToTaskMapping
Description Maps an instance of a RunnableEntity onto one OsTask based on the
activating RTEEvent. In the case of a RunnableEntity executed via a
direct function call this RteEventToTaskMapping is still specified but no
RteMappedToTask element is included. The RtePositionInTask
parameter is necessary to provide an ordering of events invoked by the
same RTE API.
Configuration Parameters

Name RteActivationOffset [ECUC_Rte_09018]

Description Activation offset in seconds.
Multiplicity 0..1
Type EcucFloatParamDef
Range [0 .. INF]
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteImmediateRestart [ECUC_Rte_09092]

Description When RteImmediateRestart is set to true the RunnableEntitiy shall be
immediately re-started after termination if it was activated by this
RTEEvent while it was already started.

This parameter shall not be set to true when the mapped RTEEvent
refers to a RunnableEntity which minimumStartInterval attribute is > 0.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteOsSchedulePoint [ECUC_Rte_09022]

Description Introduce a schedule point by explicitly calling Os Schedule service
after the execution of the ExecutableEntity. The Rte generator is
allowed to optimize several consecutive calls to Os schedule into one
single call if the ExecutableEntity executions in between have been
skipped.

The absence of this parameter is interpreted as "NONE".

It shall be considered an invalid configuration if the task is preemptable

and the value of this parameter is not set to "NONE" or the parameter
is absent.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range CONDITIONAL A Schedule Point shall be introduced at
the end of the execution of this
ExecutableEntity. The Schedule Point
can be skipped if several Schedule
Points would be called without any
ExecutableEntity execution in between.
NONE No Schedule Point shall be introduced
at the end of the execution of this
ExecutableEntity.
UNCONDITIONAL A Schedule Point shall always be
introduced at the end of the execution
of this ExecutableEntity.
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RtePositionInTask [ECUC_Rte_09023]

Description Each RunnableEntity mapped to an OsTask has a specific position
within the task execution. For periodic activation this is the order of
execution. For event driver activation this is the order of evaluation
which actual RunnableEntity has to be executed. In case of direct
function calls this parameter is necessary to provide an ordering of
events when several ExecutableEntities are invoked by the same RTE
API.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 65535
Default Value

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Post-Build Variant false

Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteEventPredecessorSyncPointRef [ECUC_Rte_09128]

Description The RteEventPredecessorSyncPointRef is necessary to provide a
cross core synchronization in case of RteEvents triggered by the same
event source but mapped to tasks belonging to different partitions on
different cores.

The synchronization point must be reached by all referencing

RteEvents before the execution in all related tasks is continued.

In case of RteEventPredecessorSyncPointRef the RunnableEntity

activated by the mapped RteEvent is executed after the
synchronization point is passed.
Multiplicity 0..1
Type Reference to RteSyncPoint
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteEventRef [ECUC_Rte_09019]

Description Reference to the description of the RTEEvent which is pointing to the
RunnableEntity being mapped. This allows a fine grained mapping of
RunnableEntites based on the activating RTEEvent.
Multiplicity 1
Type Foreign reference to RTE-EVENT
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteEventSuccessorSyncPointRef [ECUC_Rte_09129]

Description The RteEventSuccessorSyncPointRef is necessary to provide a cross
core synchronization in case of RteEvents triggered by the same event
source but mapped to tasks belonging to different partitions on
different cores.

The synchronization point must be reached by all referencing

RteEvents before the execution in all related tasks is continued.

In case of RteEventSuccessorSyncPointRef the RunnableEntity

activated by the mapped RteEvent is executed before the
synchronization point is entered.
Multiplicity 0..1
Type Reference to RteSyncPoint
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteMappedToTaskRef [ECUC_Rte_09021]

Description Reference to the OsTask the RunnableEntity activated by the
RteEventRef is mapped to.

If no reference to the OsTask is specified the RunnableEntity shall be

executed via a direct function call.

The fact that no reference to an OsTask is specified for a

RunnableEntity does not necessarily imply that every RTE generator
has to support the implementation of this RunnableEntity as a direct
function call. The standard set of use cases for direct function calls that
has to be supported by every RTE generator is explicitly stated as
requirements in this document. For further optimization RTE vendors
are free to support additional scenarios of direct function call
implementations that are not explicitly required in this document.
Multiplicity 0..1
Type Reference to OsTask
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteUsedInitFnc [ECUC_Rte_09116]

Description The RunnableEntity is executed during initialization in the context of
the Rte_Init_<InitContainer> function.
Multiplicity 0..1
Type Reference to RteInitializationRunnableBatch
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteUsedOsAlarmRef [ECUC_Rte_09024]

Description If an OsAlarm is used to activate the OsTask this RteEvent is mapped
to it shall be referenced here.
Multiplicity 0..1
Type Reference to OsAlarm
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteUsedOsEventRef [ECUC_Rte_09025]

Description If an OsEvent is used to activate the OsTask this RteEvent is mapped
to it shall be referenced here.
Multiplicity 0..1
Type Reference to OsEvent
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteUsedOsSchTblExpiryPointRef [ECUC_Rte_09026]

Description If an OsScheduleTableExpiryPoint is used to activate the OsTask this
RteEvent is mapped to it shall be referenced here.
Multiplicity 0..1
Type Reference to OsScheduleTableExpiryPoint
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value

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Multiplicity Pre-compile time X All Variants

Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteVirtuallyMappedToTaskRef [ECUC_Rte_09027]

Description Optional reference to an OsTask where the activation of this RteEvent
shall be evaluated. The actual execution of the Runnable Entity shall
happen in the OsTask referenced by RteMappedToTaskRef.
Multiplicity 0..1
Type Reference to OsTask
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.5.2 Rte Os Interaction

This section contains configuration items which are closely related to the interaction of
the Rte with the Os.

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AUTOSAR CP Release 4.3.0

RteOsInteraction : RteUsedOsActivation :
EcucParamConfContainerDef +subContainer EcucParamConfContainerDef

lowerMultiplicity = 1 upperMultiplicity = *
upperMultiplicity = * lowerMultiplicity = 0

RteModeToScheduleTableMapping :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

RteSyncPoint :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

Figure 7.8: Specification of the Rte/Os Interaction

7.5.2.1 Activation using Os features

This is a collection of possible ways how the Rte might utilize Os to achieve various ac-
tivation scenarios. The used Os objects are referenced in these configuration entities.
RteOsInteraction :
EcucParamConfContainerDef

lowerMultiplicity = 1
upperMultiplicity = *

+subContainer

RteUsedOsActivation : RteActivationOsTaskRef : OsTask :

EcucParamConfContainerDef +reference EcucReferenceDef +destination EcucParamConfContainerDef

upperMultiplicity = * upperMultiplicity = 1 upperMultiplicity = *

lowerMultiplicity = 0 lowerMultiplicity = 0 lowerMultiplicity = 0

(from OS)

RteActivationOsSchTblRef : OsScheduleTable :
+reference EcucReferenceDef +destination EcucParamConfContainerDef

upperMultiplicity = 1 upperMultiplicity = *
lowerMultiplicity = 0 lowerMultiplicity = 0

(from OS)

RteActivationOsAlarmRef : OsAlarm :
+reference EcucReferenceDef +destination EcucParamConfContainerDef

upperMultiplicity = 1 upperMultiplicity = *
lowerMultiplicity = 0 lowerMultiplicity = 0

(from OS)

RteExpectedTickDuration :
EcucFloatParamDef
+parameter
min = 0
max = INF
lowerMultiplicity = 1
upperMultiplicity = 1

RteExpectedActivationOffset :
EcucFloatParamDef
+parameter
min = 0
max = INF
lowerMultiplicity = 1
upperMultiplicity = 1

Figure 7.9: Configuration how activation is implemented

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AUTOSAR CP Release 4.3.0

SWS Item [ECUC_Rte_09060]

Container Name RteUsedOsActivation
Description Attributes used in the activation of OsTasks and Runnable Entities.
Configuration Parameters

Name RteExpectedActivationOffset [ECUC_Rte_09048]

Description Activation offset in seconds.

Important: This is a requirement from the Rte towards the Os/Mcu

setup. The Rte Generator shall assume this activation offset to be
fulfilled.
Multiplicity 1
Type EcucFloatParamDef
Range [0 .. INF]
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteExpectedTickDuration [ECUC_Rte_09049]

Description The expected tick duration in seconds which shall be configured to
drive the OsScheduleTables or OsAlarm.

Important: This is a requirement from the Rte towards the Os/Mcu

setup. The Rte Generator shall assume this tick duration to be fulfilled.
Multiplicity 1
Type EcucFloatParamDef
Range [0 .. INF]
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteActivationOsAlarmRef [ECUC_Rte_09045]

Description Reference to an OsAlarm.
Multiplicity 0..1
Type Reference to OsAlarm
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value

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Multiplicity Pre-compile time X All Variants

Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteActivationOsSchTblRef [ECUC_Rte_09046]

Description Reference to an OsScheduleTable.
Multiplicity 0..1
Type Reference to OsScheduleTable
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteActivationOsTaskRef [ECUC_Rte_09047]

Description Reference to an OsTask.
Multiplicity 0..1
Type Reference to OsTask
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

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AUTOSAR CP Release 4.3.0

7.5.2.2 Modes and Schedule Tables

Optional configuration of the Rte to support the mapping of modes and Os schedule
tables.
[SWS_Rte_05146] d The referenced schedule table of RteModeScheduleTableRef
shall be activated if one of the modes referenced in RteModeSchtblMapModeDec-
larationRef is active in the mode machine instances from the references of
RteModeSchtblMapSwc or
RteModeSchtblMapBsw.
c()

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RteOsInteraction :
EcucParamConfContainerDef

lowerMultiplicity = 1
upperMultiplicity = * RteModeScheduleTableRef : OsScheduleTable :
EcucReferenceDef +destination EcucParamConfContainerDef
+subContainer
+reference upperMultiplicity = 1 upperMultiplicity = *
RteModeToScheduleTableMapping lowerMultiplicity = 1 lowerMultiplicity = 0
:EcucParamConfContainerDef
(from OS)

lowerMultiplicity = 0 RteModeSchtblMapBsw : +reference RteModeSchtblMapBswInstanceRef :

upperMultiplicity = * EcucParamConfContainerDef EcucReferenceDef

lowerMultiplicity = 0
upperMultiplicity = 1 +destination

RteBswModuleInstance :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

(from RTE)

+reference RteModeSchtblMapBswProvidedModeGroupRef :
EcucForeignReferenceDef

lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = MODE-DECLARATION-GROUP-PROTOTYPE

RteModeSchtblMapSwc : +reference RteModeSchtblMapSwcInstanceRef :

EcucParamConfContainerDef EcucReferenceDef

lowerMultiplicity = 0
upperMultiplicity = 1 +destination

RteSwComponentInstance :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

(from RTE)

+reference RteModeSchtblMapSwcPortRef :EcucForeignReferenceDef

destinationType = ABSTRACT-PROVIDED-PORT-PROTOTYPE

RteModeSchtblMapModeDeclarationRef :
EcucForeignReferenceDef
+reference

lowerMultiplicity = 1
upperMultiplicity = *
destinationType = MODE-DECLARATION

SW-Component- and BswModule-Template

ARElement +providedInterface AbstractProvidedPortPrototype
+pPort
AtpBlueprint Components::PPortPrototype
AtpBlueprintable isOfType *
1
AtpType
{redefines atpType}
PortInterface::PortInterface

+interface +modeGroup AtpPrototype

PortInterface::ModeSwitchInterface
1 ModeDeclaration::
1
ModeDeclarationGroupPrototype

isOfType 1
{redefines
+type atpType}
AtpStructureElement ARElement
Identifiable +modeDeclaration AtpBlueprint
ModeDeclaration:: 1..* atpVariation AtpBlueprintable
ModeDeclaration AtpType
+initialMode ModeDeclaration::
+ value :PositiveInteger [0..1] 1 ModeDeclarationGroup

Figure 7.10: Configuration how modes are interacting with schedule tables

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[SWS_Rte_02759] d RTE shall reject a configuration, if the RteModeSchtblMapSwc-

PortRef : EcucForeignReferenceDef does not reference a PPortPrototype or
PRPortPrototype of the type of an ModeSwitchInterface. c()
[SWS_Rte_02760] d RTE shall reject a configuration, if the ModeDeclara-
tionGroupPrototype referenced by a RteModeSchtblMapBswProvidedMode-
GroupRef:EcucForeignReferenceDef is not in the role of a providedMode-
Group. c()
SWS Item [ECUC_Rte_09058]
Container Name RteModeToScheduleTableMapping
Description Provides configuration input in which Modes of a
ModeDeclarionGroupPrototype of a Mode Manager a
OsScheudleTable shall be active. The Mode Manager is either
specified as a SwComponentPrototype (RteModeSchtblMapSwc) or as
a BSW-Module (RteModeSchtblMapBsw).
Configuration Parameters

Name RteModeScheduleTableRef [ECUC_Rte_09050]

Description Reference to the OsScheduleTable which shall be active in the
specified RteModeSchblMapModeDeclarationRefs.
Multiplicity 1
Type Reference to OsScheduleTable
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteModeSchtblMapModeDeclarationRef [ECUC_Rte_09054]

Description Reference to the ModeDeclarations.
Multiplicity 1..*
Type Foreign reference to MODE-DECLARATION
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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AUTOSAR CP Release 4.3.0

Included Containers
Container Name Multiplicity Scope / Dependency
RteModeSchtblMapBsw 0..1 Specifies an instance of a
ModeDeclarationGroupPrototype of a Bsw-Module.
RteModeSchtblMapSwc 0..1 Specifies an instance of a
ModeDeclarationGroupPrototype of a
SwComponentPrototype.

SWS Item [ECUC_Rte_09055]

Container Name RteModeSchtblMapSwc
Description Specifies an instance of a ModeDeclarationGroupPrototype of a
SwComponentPrototype.
Configuration Parameters

Name RteModeSchtblMapSwcInstanceRef [ECUC_Rte_09056]

Description Reference to an instance specification of a SwComponentPrototype.
Multiplicity 1
Type Reference to RteSwComponentInstance
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteModeSchtblMapSwcPortRef [ECUC_Rte_09057]

Description Reference to the PPortPrototype of a SwComponentPrototype.
Multiplicity 1
Type Foreign reference to ABSTRACT-PROVIDED-PORT-PROTOTYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

SWS Item [ECUC_Rte_09051]

Container Name RteModeSchtblMapBsw
Description Specifies an instance of a ModeDeclarationGroupPrototype of a
Bsw-Module.
Configuration Parameters

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Name RteModeSchtblMapBswInstanceRef [ECUC_Rte_09052]

Description Reference to an instance specification of a Bsw-Module.
Multiplicity 1
Type Reference to RteBswModuleInstance
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteModeSchtblMapBswProvidedModeGroupRef [ECUC_Rte_09053]

Description Reference to an instance of a ModeDeclarationGroupPrototype of a
Bsw-Module.
Multiplicity 1
Type Foreign reference to MODE-DECLARATION-GROUP-PROTOTYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.5.3 Exclusive Area implementation

The RTE Generator can be configured to implement a different data consistency mech-
anism for each ExclusiveArea defined for an AUTOSAR software-component.
In figure 7.11 the configuration of the actually selected data consistency mechanism is
shown.
[SWS_Rte_CONSTR_03510] Exclude usage of OS_SPINLOCK in RteExclu-
siveAreaImplementation d The usage of the enumeration literal OS_SPINLOCK
for the parameter RteExclusiveAreaImplMechanism shall be excluded if the pa-
rameter RteExclusiveAreaImplMechanism is used in the context of the container
RteExclusiveAreaImplementation. c()

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 Specification of RTE
AUTOSAR CP Release 4.3.0

RteSwComponentInstance : RteSoftwareComponentInstanceRef :
EcucParamConfContainerDef +reference EcucForeignReferenceDef

lowerMultiplicity = 0 destinationType = SW-COMPONENT-PROTOTYPE

upperMultiplicity = * upperMultiplicity = 1
lowerMultiplicity = 0
(from RTE)
(from RTE)

Software Component template

AtpPrototype ARElement
+type AtpBlueprint
Composition::
AtpBlueprintable
SwComponentPrototype
* 1 isOfType AtpType
{redefines atpType} Components::SwComponentType

Components::
AtomicSwComponentType

AtpStructureElement
Identifiable +exclusiveArea atpVariation,atpSplitable
InternalBehavior::
InternalBehavior:: InternalBehavior
0..* atpVariation,atpSplitable
ExclusiveArea

+internalBehavior 0..1

SwcInternalBehavior::SwcInternalBehavior

+ handleTerminationAndRestart :HandleTerminationAndRestartEnum
+ supportsMultipleInstantiation :Boolean

+subContainer

RteExclusiveAreaImplementation : RteExclusiveAreaRef :
+reference
EcucParamConfContainerDef EcucForeignReferenceDef

upperMultiplicity = * destinationType = EXCLUSIVE-AREA

lowerMultiplicity = 0

RteExclusiveAreaImplMechanism : +literal NONE :EcucEnumerationLiteralDef

EcucEnumerationParamDef

+literal ALL_INTERRUPT_BLOCKING :
EcucEnumerationLiteralDef

+parameter +literal OS_INTERRUPT_BLOCKING :

EcucEnumerationLiteralDef

+literal OS_RESOURCE :EcucEnumerationLiteralDef

+literal OS_SPINLOCK :EcucEnumerationLiteralDef

Os

RteExclusiveAreaOsResourceRef : OsResource :
+reference EcucReferenceDef +destination EcucParamConfContainerDef

lowerMultiplicity = 0 upperMultiplicity = *
upperMultiplicity = 1 lowerMultiplicity = 0

(from OS)

Figure 7.11: Configuration of the ExclusiveArea implementation

SWS Item [ECUC_Rte_09030]

Container Name RteExclusiveAreaImplementation
Description Specifies the implementation to be used for the data consistency of this
ExclusiveArea.
Configuration Parameters

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AUTOSAR CP Release 4.3.0

Name RteExclusiveAreaImplMechanism [ECUC_Rte_09029]

Description To be used implementation mechanism for the specified ExclusiveArea.
Multiplicity 1
Type EcucEnumerationParamDef
Range ALL_INTERRUPT_BLOC
KING
NONE
OS_INTERRUPT_BLOCKI
NG
OS_RESOURCE
OS_SPINLOCK
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteExclusiveAreaOsResourceRef [ECUC_Rte_09031]

Description Optional reference to an OsResource in case
RteExclusiveAreaImplMechanism is configured to OS_RESOURCE for
this ExclusiveArea.
Multiplicity 0..1
Type Reference to OsResource
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteExclusiveAreaRef [ECUC_Rte_09032]

Description Reference to the ExclusiveArea.
Multiplicity 1
Type Foreign reference to EXCLUSIVE-AREA
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time

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Scope / Dependency scope: local

No Included Containers

7.5.4 NVRam Allocation

The configuration of the NVRam access does involve several templates, because it
closes the gap between the AUTOSAR software-components, the NVRAM Manager
Services and the BSW Modules.
In figure 7.12 the related information from the AUTOSAR Software Component Tem-
plate is shown.
Software Component template

Identifiable AtpStructureElement InternalBehavior

ServiceNeeds::ServiceNeeds +serviceNeeds Identifiable SwcInternalBehavior::SwcInternalBehavior
ServiceDependency +serviceDependency
ServiceMapping:: + handleTerminationAndRestart :HandleTerminationAndRestartEnum
atpVariation,atpSplitable
1 0..*
SwcServiceDependency + supportsMultipleInstantiation :Boolean

atpVariation atpVariation,atpSplitable
+assignedData 0..* +perInstanceMemory *

AtpStructureElement
ServiceNeeds::NvBlockNeeds ServiceNeeds::RoleBasedDataAssignment
Identifiable
+ role :Identifier PerInstanceMemory::
+usedPim
PerInstanceMemory
0..1
+ initValue :String [0..1]
+ type :CIdentifier
atpVariation,atpSplitable
+ typeDefinition :String

atpVariation,atpSplitab

{XOR
role of owning
RoleBasedDataAssignement shall be
ramBlock}
{role of owning
RoleBasedDataAssignement +usedDataElement 0..1 +arTypedPerInstanceMemory *
shall be defaultValue}
AutosarDataPrototype
DataElements:: +localVariable
AutosarVariableRef DataPrototypes::
0..1 VariableDataPrototype

+usedParameterElement 0..1 +perInstanceParameter *

AtpPrototype
AutosarDataPrototype
DataElements:: +autosarParameter
+localParameter DataPrototypes::
AutosarParameterRef DataPrototype DataPrototypes::
instanceRef 0..1 ParameterDataPrototype

Figure 7.12: software-component information of NVRam Service needs

In figure 7.13 the ECU Configuration part of the NVRam allocation is shown. It re-
lates the software-components SwcServiceDependency and NvBlockNeeds infor-
mation with the NVRam Managers NvMBlockDescriptor and the linker symbols of
the RAM and ROM sections to be used.

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 Specification of RTE
AUTOSAR CP Release 4.3.0

RteNvRamAllocation : +parameter RteNvmRomBlockLocationSymbol :

EcucParamConfContainerDef EcucLinkerSymbolDef

upperMultiplicity = * upperMultiplicity = 1
NvMRomBlockDataAddress :
lowerMultiplicity = 0 lowerMultiplicity = 0
EcucStringParamDef

lowerMultiplicity = 0
upperMultiplicity = 1

+parameter 0..1

+reference RteNvmBlockRef : +destination NvMBlockDescriptor :

EcucSymbolicNameReferenceDef EcucParamConfContainerDef

upperMultiplicity = 65536
lowerMultiplicity = 1

+parameter
+parameter 0..1

RteNvmRamBlockLocationSymbol : NvMNvramBlockIdentifier :
NvMRamBlockDataAddress : EcucIntegerParamDef
+parameter EcucLinkerSymbolDef
EcucStringParamDef

upperMultiplicity = 1 symbolicNameValue = true

lowerMultiplicity = 0 min = 1
lowerMultiplicity = 0
upperMultiplicity = 1 max = 65535

+reference +reference

RteSwNvRamMappingRef :EcucForeignReferenceDef RteSwNvBlockDescriptorRef :

EcucForeignReferenceDef
lowerMultiplicity = 0
upperMultiplicity = 1 lowerMultiplicity = 0
destinationType = SWC-SERVICE-DEPENDENCY upperMultiplicity = 1
destinationType = NV-BLOCK-DESCRIPTOR

XOR

Software Component template

AtpStructureElement
Identifiable
NvBlockDescriptor

+ supportDirtyFlag :Boolean [0..1]

Identifiable AtpStructureElement
+serviceNeeds AtpStructureElement
ServiceNeeds Identifiable Identifiable
1 ServiceDependency PerInstanceMemory
SwcServiceDependency
+ initValue :String [0..1]
+ type :CIdentifier
+nvBlockNeeds 1 + typeDefinition :String
atpVariation
NvBlockNeeds +assignedData 0..* +usedPim 0..1
{XOR
role of owning
RoleBasedDataAssignment RoleBasedDataAssignement
+ role :Identifier shall be ramBlock}
+ramBlock 1

+usedDataElement AutosarDataPrototype
+localVariable
AutosarVariableRef VariableDataPrototype
0..1 0..1

+romBlock 0..1
+usedParameterElement
AutosarParameterRef AutosarDataPrototype
0..1
ParameterDataPrototype

{role of owning
RoleBasedDataAssignement shall be
defaultValue}

Figure 7.13: ECU Configuration of the NVRam Service

[SWS_Rte_CONSTR_09091] RteSwNvRamMappingRef and RteSwNvBlockDe-

scriptorRef are excluding each other d If an RteSwNvBlockDescriptorRef is
defined there shall be no RteSwNvRamMappingRef, RteNvmRomBlockLocation-

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AUTOSAR CP Release 4.3.0

Symboland RteNvmRamBlockLocationSymbol defined. If an RteSwNvRamMap-

pingRef is defined there shall be no RteSwNvBlockDescriptorRef defined. c()
SWS Item [ECUC_Rte_09040]
Container Name RteNvRamAllocation
Description Specifies the relationship between the AtomicSwComponentTypes
NVRAMMapping / NVRAM needs and the NvM module configuration.
Configuration Parameters

Name RteNvmRamBlockLocationSymbol [ECUC_Rte_09042]

Description This is the name of the linker object name where the NVRam Block will
be mirrored by the Nvm. This symbol will be resolved into the
parameter "NvmRamBlockDataAddress" from the
"NvmBlockDescriptor".
Multiplicity 0..1
Type EcucLinkerSymbolDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteNvmRomBlockLocationSymbol [ECUC_Rte_09043]

Description This is the name of the linker object name where the NVRom Block will
be accessed by the Nvm. This symbol will be resolved into the
parameter "NvmRomBlockDataAddress" from the
"NvmBlockDescriptor".
Multiplicity 0..1
Type EcucLinkerSymbolDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteNvmBlockRef [ECUC_Rte_09041]

Description Reference to the used NvM block for storage of the NVRAMMapping
information.
Multiplicity 1
Type Symbolic name reference to NvMBlockDescriptor
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteSwNvBlockDescriptorRef [ECUC_Rte_09132]

Description Reference to the NvBlockDescriptor in case the RTE needs to call the
NvM directly (e.g. for the supportDirtyFlag feature, storeCyclic feature,
server invocation for NV data management or mode switch based
invocation NvM services).
Multiplicity 0..1
Type Foreign reference to NV-BLOCK-DESCRIPTOR
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteSwNvRamMappingRef [ECUC_Rte_09044]

Description Reference to the SwSeriveDependency which is used to specify the
NvBlockNeeds.

XOR
Multiplicity 0..1
Type Foreign reference to SWC-SERVICE-DEPENDENCY
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.5.5 SWC Trigger queuing

This configuration determine the size of the queue queuing the issued triggers.
The RteExternalTriggerConfig container and RteInternalTriggerConfig
container is defined in the context of the RteSwComponentInstance which already
predefines the context of the Trigger / InternalTriggeringPoint.
[SWS_Rte_CONSTR_09005] The references RteSwcTriggerSourceRef has to
be consistent with the RteSoftwareComponentInstanceRef d The references
RteSwcTriggerSourceRef has to be consistent with the RteSoftwareCompo-
nentInstanceRef. This means the referenced Trigger / InternalTrigger-
ingPoint has to belong to the AtomicSwComponentType which is referenced by
the related SwComponentPrototype. c()

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 Specification of RTE
AUTOSAR CP Release 4.3.0

From SWC-T

AtpBlueprintable ARElement
AtpPrototype +port +component AtpBlueprint
Components::PortPrototype AtpBlueprintable
0..* atpVariation,atpSplitable AtpType
Components::SwComponentType

Components::
AbstractProvidedPortPrototype Components::
AtomicSwComponentType

Components::PPortPrototype

atpVariation,atpSplitable
+pPort *
+internalBehavior 0..1
isOfType
1 InternalBehavior
+providedInterface {redefines atpType}
SwcInternalBehavior::
ARElement SwcInternalBehavior
AtpBlueprint
AtpBlueprintable
AtpType
PortInterface::PortInterface
atpVariation,atpSplitable
+runnable 0..*

AtpStructureElement
ExecutableEntity
SwcInternalBehavior::
PortInterface::TriggerInterface RunnableEntity

+trigger 1..* atpVariation,atpSplitable

+internalTriggeringPoint 0..*
AtpStructureElement
AbstractAccessPoint
Identifiable
AtpStructureElement
TriggerDeclaration::Trigger Identifiable
+ swImplPolicy :SwImplPolicyEnum [0..1] Trigger::InternalTriggeringPoint

+ swImplPolicy :SwImplPolicyEnum [0..1]

RteSwComponentInstance : RteExternalTriggerConfig : RteSwcTriggerSourceRef :EcucInstanceReferenceDef

EcucParamConfContainerDef EcucParamConfContainerDef
+reference
destinationType = TRIGGER
lowerMultiplicity = 0 lowerMultiplicity = 0 upperMultiplicity = 1
upperMultiplicity = * upperMultiplicity = * lowerMultiplicity = 1
destinationContext = ABSTRACT-PROVIDED-PORT-PROTOTYPE

+subContainer
RteTriggerSourceQueueLength :
EcucIntegerParamDef
+parameter
defaultValue = 0
lowerMultiplicity = 1
upperMultiplicity = 1
min = 0
max = 4294967295

RteInternalTriggerConfig : RteSwcTriggerSourceRef :EcucForeignReferenceDef

EcucParamConfContainerDef
+reference
destinationType = INTERNAL-TRIGGERING-POINT
lowerMultiplicity = 0 upperMultiplicity = 1
upperMultiplicity = * lowerMultiplicity = 1

+subContainer

RteTriggerSourceQueueLength :
EcucIntegerParamDef
+parameter
defaultValue = 0
lowerMultiplicity = 1
upperMultiplicity = 1
min = 0
max = 4294967295
(from RTE)

Figure 7.14: Configuration of SWC Trigger queuing

SWS Item [ECUC_Rte_09105]

Container Name RteExternalTriggerConfig

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AUTOSAR CP Release 4.3.0

Description Defines the configuration of External Trigger Event Communication for

Software Components
Configuration Parameters

Name RteTriggerSourceQueueLength [ECUC_Rte_09095]

Description Length of trigger queue on the trigger source side.

The queue is implemented by the RTE. A value greater or equal to 1

requests an queued behavior. Setting the value of
RteTriggerSourceQueueLength to 0 requests an none queued
implementation of the trigger communication.

If there is no RteTriggerSourceQueueLength configured for a Trigger

Emitter the default value of 0 applies as well.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value 0
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteSwcTriggerSourceRef [ECUC_Rte_09106]

Description Reference to a Trigger instance in the pPortPrototype of the related
component instance.

The referenced Trigger instance has to belong to the same software

component instance as the RteSwComponentInstance owning this
parameter configures.
Multiplicity 1
Type Instance reference to TRIGGER context: ABSTRACT-PROVIDED-PO
RT-PROTOTYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

SWS Item [ECUC_Rte_09096]

Container Name RteInternalTriggerConfig

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Description Defines the configuration of Inter Runnable Triggering for Software

Components
Configuration Parameters

Name RteTriggerSourceQueueLength [ECUC_Rte_09098]

Description Length of trigger queue on the trigger source side.

The queue is implemented by the RTE. A value greater or equal to 1

requests an queued behavior. Setting the value of
RteTriggerSourceQueueLength to 0 requests an none queued
implementation of the trigger communication.

If there is no RteTriggerSourceQueueLength configured for a Trigger

Emitter the default value of 0 applies as well.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value 0
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteSwcTriggerSourceRef [ECUC_Rte_09097]

Description Reference to an InternalTriggeringPoint of the related component
instance.

The referenced InternalTriggeringPoint has to belong to the same

software component instance as the RteSwComponentInstance
owning this parameter configures.
Multiplicity 1
Type Foreign reference to INTERNAL-TRIGGERING-POINT
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

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 Specification of RTE
AUTOSAR CP Release 4.3.0

7.6 Handling of Software Component types

7.6.1 Selection of Software-Component Implementation

During the system development there is no need to select the actual implementation
which will be later integrated on one ECU. Therefore the ECU Extract of System De-
scription may not specify the SwcImplementation information yet.
For RTE Generation the information about the to be used SwcImplementation
for each SwComponentType needs be provided to the RTE Generator (regardless
whether the information is from the Ecu Extract or the Ecu Configuration.
The mapping of SwcImplementation to SwComponentType is done in the Ecu Con-
figuration of the Rte using the two references RteComponentTypeRef and RteIm-
plementationRef (see figure 7.15). For the mapping in the Ecu Extract please refer
to the Specification of the System Template [8].
RteComponentTypeRef : RteSwComponentType : RteImplementationRef :
EcucForeignReferenceDef +reference EcucParamConfContainerDef EcucForeignReferenceDef
+reference

destinationType = SW-COMPONENT-TYPE lowerMultiplicity = 0 destinationType = SWC-IMPLEMENTATION

upperMultiplicity = * upperMultiplicity = 1
lowerMultiplicity = 0

SWComponentTemplate

Implementation
ARElement SwcImplementation
AtpBlueprint
+ requiredRTEVendor :String [0..1]
AtpBlueprintable
AtpType
SwComponentType *

+behavior 1

InternalBehavior
AtomicSwComponentType +internalBehavior SwcInternalBehavior

atpVariation,atpSplitable 0..1 + handleTerminationAndRestart :HandleTerminationAndRestartEnum

+ supportsMultipleInstantiation :Boolean

Figure 7.15: Selection of the Implementation for an AtomicSwComponentType

SWS Item [ECUC_Rte_09006]

Container Name RteSwComponentType
Description Representation of one SwComponentType for the base of all
configuration parameter which are affecting the whole type and not a
specific instance.
Configuration Parameters

Name RteBypassSupportEnabled [ECUC_Rte_09114]

Description Individual switch to enable the bypass support for this software
component type.
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Multiplicity

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Post-Build Variant false

Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteComponentTypeRef [ECUC_Rte_09003]

Description Reference to either AtomicSwComponentType or
ParameterSwComponentType.
Multiplicity 1
Type Foreign reference to SW-COMPONENT-TYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteImplementationRef [ECUC_Rte_09028]

Description The Implementation which shall be assigned to the
SwComponentType.
Multiplicity 0..1
Type Foreign reference to SWC-IMPLEMENTATION
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Included Containers
Container Name Multiplicity Scope / Dependency
RteComponentType 0..1 Specifies for each ParameterSwComponentType or
Calibration AtomicSwComponentType whether calibration is
enabled. If references to SwAddrMethod are provided in
RteCalibrationSwAddrMethodRef only
ParameterDataPrototypes with the referenced
SwAddrMethod shall have software calibration support
enabled.

7.6.2 Component Type Calibration

In the AUTOSAR Software Component Template two places may provide calibration
data: the ParameterSwComponentType and the AtomicSwComponentType (or
more precisely the subclasses of AtomicSwComponentType). Whether the calibra-
tion is enabled for a specific SwComponentType can be configured as shown in fig-
ure 7.16.
RteSwComponentType : RteComponentTypeRef : Software Component template
+reference EcucForeignReferenceDef
EcucParamConfContainerDef
ARElement
lowerMultiplicity = 0 destinationType = SW-COMPONENT-TYPE AtpBlueprint
upperMultiplicity = * AtpBlueprintable
AtpType
SwComponentType

AtomicSwComponentType ParameterSwComponentType

atpVariation
SwDataDefProps

+swAddrMethod 0..1

ARElement
AtpBlueprint
AtpBlueprintable
SwAddrMethod

RteComponentTypeCalibration :
EcucParamConfContainerDef
+parameter RteCalibrationSupportEnabled :
upperMultiplicity = 1 EcucBooleanParamDef
+subContainer lowerMultiplicity = 0

RteCalibrationSwAddrMethodRef :
+reference
EcucForeignReferenceDef

lowerMultiplicity = 0
upperMultiplicity = *
destinationType = SW-ADDR-METHOD

Figure 7.16: Configuration of the calibration for the ParameterSwComponentType

The foreign reference RteComponentTypeRef identifies the SwComponentType

(which is limited to ParameterSwComponentType and AtomicSwComponentType).

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The boolean parameter RteCalibrationSupportEnabled specifies whether cali-

bration shall be enabled for the specified SwComponentType.
[SWS_Rte_05145] d For a ParameterDataPrototype of the referenced SwCom-
ponentType software calibration support shall be enabled if the parameter RteCal-
ibrationSupportEnabled is set to true and in the corresponding container Rte-
ComponentTypeCalibration
not a single RteCalibrationSwAddrMethodRef exists or
a reference RteCalibrationSwAddrMethodRef to the SwAddrMethod of the
ParameterDataPrototype exists.
c(SRS_Rte_00154, SRS_Rte_00156, SRS_Rte_00158)
SWS Item [ECUC_Rte_09039]
Container Name RteComponentTypeCalibration
Description Specifies for each ParameterSwComponentType or
AtomicSwComponentType whether calibration is enabled. If references
to SwAddrMethod are provided in RteCalibrationSwAddrMethodRef
only ParameterDataPrototypes with the referenced SwAddrMethod
shall have software calibration support enabled.
Configuration Parameters

Name RteCalibrationSupportEnabled [ECUC_Rte_09037]

Description Enables calibration support for the specified
ParameterSwComponentType or AtomicSwComponentType.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteCalibrationSwAddrMethodRef [ECUC_Rte_09038]

Description Reference to the SwAddrMethod for which software calibration support
shall be enabled.
Multiplicity 0..*
Type Foreign reference to SW-ADDR-METHOD
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

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 Specification of RTE
AUTOSAR CP Release 4.3.0

7.7 Implicit communication configuration

AtpPrototype
Composition::
SwComponentPrototype

*
isOfType

Software Component template

+type 1
{redefines atpType}
ARElement
AtpBlueprint
AtpBlueprintable
AtpType
Components::
SwComponentType

Components::
AtomicSwComponentType

atpVariation,atpSplitable
+internalBehavior 0..1

InternalBehavior
SwcInternalBehavior::SwcInternalBehavior

+ handleTerminationAndRestart :HandleTerminationAndRestartEnum
+ supportsMultipleInstantiation :Boolean

atpVariation,atpSplitable
+runnable 0..*
AtpStructureElement
ExecutableEntity
SwcInternalBehavior::RunnableEntity

+ canBeInvokedConcurrently :Boolean
+ symbol :CIdentifier
Rte :EcucModuleDef atpVariation,atpSplitable atpVariation,atpSplitable
+dataReadAccess 0..* +dataWriteAccess 0..*
upperMultiplicity = 1
lowerMultiplicity = 0 AbstractAccessPoint
AtpStructureElement
(from RTE) Identifiable
DataElements::VariableAccess

+ scope :VariableAccessScopeEnum [0..1]

+container

RteImplicitCommunication : RteVariableReadAccessRef :
EcucParamConfContainerDef EcucForeignReferenceDef
+reference
upperMultiplicity = * destinationType = VARIABLE-ACCESS
lowerMultiplicity = 0 lowerMultiplicity = 0
upperMultiplicity = *

RteVariableWriteAccessRef :
EcucForeignReferenceDef
+reference

destinationType = VARIABLE-ACCESS
lowerMultiplicity = 0
upperMultiplicity = *

RteImmediateBufferUpdate :
+parameter
EcucBooleanParamDef

defaultValue = false

+parameter RteCoherentAccess :EcucBooleanParamDef

defaultValue = false

RteSoftwareComponentInstanceRef :EcucInstanceReferenceDef

+reference destinationType = SW-COMPONENT-PROTOTYPE

upperMultiplicity = *
lowerMultiplicity = 1
destinationContext = ROOT-SW-COMPOSITION-PROTOTYPE

Figure 7.17: Configuration of the implicit communication

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 Specification of RTE
AUTOSAR CP Release 4.3.0

SWS Item [ECUC_Rte_09034]

Container Name RteImplicitCommunication
Description Configuration of the Implicit Communication behavior to be generated.
Configuration Parameters

Name RteCoherentAccess [ECUC_Rte_09091]

Description If set to true the referenced VariableAccesses of this
RteImplicitCommunication container are in one CoherencyGroup.

Data values for Coherent Implicit Read Accesses are read before the
first reading RunnbaleEntity starts and are stable during the execution
of all the reading RunnableEntitys; except Coherent Implicit Write
Accesses belongs to the same Coherency Group. Data values written
by Coherent Implicit Write Accesses are available for readers not
belonging to the Coherency Group after the last writing RunnableEntity
has terminated.

Please note that a Coherent Implicit Data Access can be defined for
VariableAccesses to same and different data element. Nevertheless
all Coherent Implicit Data Accesses of one Coherency Group have to
be executed in the same task.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteImmediateBufferUpdate [ECUC_Rte_09033]

Description If set to true the RTE will perform preemption area specific buffer
update immediately before (for VariableAccess in the role
dataReadAccess) resp. after (for VariableAccess in the role
dataWriteAccess) Runnable execution.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteSoftwareComponentInstanceRef [ECUC_Rte_09090]

Description Reference to a SwComponentPrototype.
This denotes the instances of the VariableAccess belonging to the
RteImplicitCommunication.
Multiplicity 1..*
Type Instance reference to SW-COMPONENT-PROTOTYPE context: ROO
T-SW-COMPOSITION-PROTOTYPE
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteVariableReadAccessRef [ECUC_Rte_09035]

Description Reference to the VariableAccess in the dataReadAccess role.
Multiplicity 0..*
Type Foreign reference to VARIABLE-ACCESS
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteVariableWriteAccessRef [ECUC_Rte_09036]

Description Reference to the VariableAccess in the dataWriteAccess role.
Multiplicity 0..*
Type Foreign reference to VARIABLE-ACCESS
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value

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Multiplicity Pre-compile time X All Variants

Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

Please note, that RteImplicitCommunication is defined as a container of Rte

EcucModuleDef to support the creation of the ECU Configuration Parameter Values
related to RteImplicitCommunication independent from the other ECU Config-
uration Parameter Values. Typically the need for coherent implicit data ac-
cesses is known by the vendor of a set of software components. As long as short-
Names of the RootSwCompositionPrototype and the referenced Composition-
SwComponentType - describing the software of a flat ECU Extract - are known the
ECU Configuration Parameter Values related to RteImplicitCommunication can
be prescribed. In this case it is preferable to use relative references to the Vendor
Specific Module Definition (VSMD), to RootSwCompositionPrototype and Com-
positionSwComponentType describing the software of a flat ECU Extract. With
this relative references the ECU Configuration Parameter Values are independent from
ARPackage structure only known by the ECU integrator. Nevertheless the shortName
and location of of the EcucModuleConfigurationValues must be defined upfront.

7.8 Communication infrastructure

The configuration of the communication infrastructure (interaction of the RTE with the
Com-Stack) is entirely predetermined by the ECU Extract provided as an input. The
required input can be found in the AUTOSAR System Template [8] sections "Data Map-
ping" and "Communication".
In case the RTE does utilize the Com module for intra-ECU communication it is up to
the vendor-specific configuration of the RTE to ensure configuration consistency.

7.9 Configuration of the BSW Scheduler

The configuration of the BSW Scheduler part of the RTE is shown in the overview in
figure 7.18.

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Rte :EcucModuleDef RteBswGeneral : BswModuleTemplate

+container EcucParamConfContainerDef ECUCDescriptionTemplate
upperMultiplicity = 1 Implementation
lowerMultiplicity = 0 +moduleDescription ARElement
lowerMultiplicity = 1 BswImplementation
upperMultiplicity = 1 EcucModuleConfigurationValues
0..1

RteOsInteraction :
EcucParamConfContainerDef

+container lowerMultiplicity = 1
upperMultiplicity = *

RteBswModuleInstance : RteBswImplementationRef :EcucForeignReferenceDef

EcucParamConfContainerDef
+reference
lowerMultiplicity = 1
lowerMultiplicity = 0 upperMultiplicity = 1
upperMultiplicity = * destinationType = BSW-IMPLEMENTATION

RteBswModuleConfigurationRef :EcucForeignReferenceDef
+reference
lowerMultiplicity = 0
upperMultiplicity = 1
destinationType = ECUC-MODULE-CONFIGURATION-VALUES

RteBswEventToTaskMapping :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
+container upperMultiplicity = *

RteBswExclusiveAreaImpl :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

RteBswRequiredTriggerConnection :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

RteBswRequiredModeGroupConnection :
+subContainer EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

Figure 7.18: Configuration of BSW Scheduler overview

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7.9.1 BSW Scheduler General configuration

Rte :EcucModuleDef

upperMultiplicity = 1
lowerMultiplicity = 0

(from RTE)

+container

RteBswGeneral : RteSchMVersionInfoApi :
EcucParamConfContainerDef EcucBooleanParamDef
+parameter

lowerMultiplicity = 1 lowerMultiplicity = 1
upperMultiplicity = 1 upperMultiplicity = 1
defaultValue = false

RteUseComShadowSignalApi :
EcucBooleanParamDef
+parameter

lowerMultiplicity = 1
upperMultiplicity = 1
defaultValue = false

Figure 7.19: General configuration of BSW Scheduler

SWS Item [ECUC_Rte_09061]

Container Name RteBswGeneral
Description General configuration parameters of the Bsw Scheduler section.
Configuration Parameters

Name RteSchMVersionInfoApi [ECUC_Rte_09062]

Description Enables the generation of the SchM_GetVersionInfo() API.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteUseComShadowSignalApi [ECUC_Rte_09107]

Description This parameter defines whether the ComShadowSignalAPIs
((Com_UpdateShadowSignal, Com_InvalidateShadowSignal,
Com_ReceiveShadowSignal) are used or not.

If this parameter is set to true the ShadowSignal APIs and Signal APIs
(Com_SendSignal, Com_InvalidateSignal, Com_ReceiveSignal) are
used. If this parameter is set to false only the Signal APIs
(Com_SendSignal, Com_InvalidateSignal, Com_ReceiveSignal) are
used.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false

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Post-Build Variant false

Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.9.2 BSW Module Instance configuration

SWS Item [ECUC_Rte_09002]

Container Name RteBswModuleInstance
Description Represents one instance of a Bsw-Module configured on one ECU.
Configuration Parameters

Name RteBswImplementationRef [ECUC_Rte_09066]

Description Reference to the BswImplementation for which the Rte /SchM is
configured.
Multiplicity 1
Type Foreign reference to BSW-IMPLEMENTATION
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswModuleConfigurationRef [ECUC_Rte_09001]

Description Reference to the ECU Configuration Values provided for this
BswImplementation.
Multiplicity 0..1
Type Foreign reference to ECUC-MODULE-CONFIGURATION-VALUES
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: local

Included Containers
Container Name Multiplicity Scope / Dependency
RteBswEventToTask 0..* Maps a BswModuleEntity onto an OsTask based on the
Mapping activating BswEvent. A BswModuleEntity can be
activated by more than one BswEvent and thus be
mapped to more than one OsTask. In the case of a
BswSchedulableEntity executed via a direct function call
this RteBswEventToTaskMapping is still specified but no
RteBswMappedToTaskRef element is included. The
RteBswPositionInTask parameter is necessary to
provide an ordering of events invoked by the same RTE
API.
RteBswExclusiveArea 0..* Represents one ExclusiveArea of one
Impl BswImplementation. Used to specify the implementation
means of this ExclusiveArea.
RteBswExternalTrigger 0..* Defines the configuration of Inter Basic Software Module
Config Entity Triggering
RteBswInternalTrigger 0..* Defines the configuration of internal Basic Software
Config Module Entity Triggering
RteBswRequiredClient 0..* Defines the connection between one
ServerConnection requiredClientServerEntry and one
providedClientServerEntry of a BswModuleDescription.
This container shall be provided on the client side of the
connection.
RteBswRequiredMode 0..* Defines the connection between one
GroupConnection requiredModeGroup of this BSW Module instance and
one providedModeGroup instance.
RteBswRequiredSender 0..* Defines the connection between one requiredData and
ReceiverConnection one providedData of a BswModuleDescription. This
container shall be provided on the receiver side of the
connection.
RteBswRequiredTrigger 0..* Defines the connection between one requiredTrigger of
Connection this BSW Module instance and one releasedTrigger
instance.

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7.9.2.1 BSW ExclusiveArea configuration

RteBswModuleInstance : RteExclusiveAreaImplMechanism : +literal NONE :EcucEnumerationLiteralDef

EcucParamConfContainerDef EcucEnumerationParamDef

lowerMultiplicity = 0
upperMultiplicity = * +literal ALL_INTERRUPT_BLOCKING :
EcucEnumerationLiteralDef

+subContainer
+literal
OS_INTERRUPT_BLOCKING :
RteBswExclusiveAreaImpl : EcucEnumerationLiteralDef
EcucParamConfContainerDef

lowerMultiplicity = 0 +literal OS_RESOURCE :EcucEnumerationLiteralDef

upperMultiplicity = * +parameter

+literal OS_SPINLOCK :EcucEnumerationLiteralDef

Os
RteBswExclusiveAreaOsResourceRef :
+reference EcucReferenceDef OsResource :
+destination
EcucParamConfContainerDef
lowerMultiplicity = 0
upperMultiplicity = 1 upperMultiplicity = *
lowerMultiplicity = 0

RteBswExclusiveAreaOsSpinlockRef : OsSpinlock :
+reference EcucReferenceDef +destination EcucParamConfContainerDef

lowerMultiplicity = 0 lowerMultiplicity = 0
upperMultiplicity = 1 upperMultiplicity = *

RteBswExclusiveAreaRef :
+reference EcucForeignReferenceDef

lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = EXCLUSIVE-AREA

BswModuleTemplate

Identifiable
ExclusiveArea

+canEnterExclusiveArea 0..* +runsInsideExclusiveArea 0..*

Identifiable
ExecutableEntity

+ minimumStartInterval :TimeValue
+ reentrancyLevel :ReentrancyLevelEnum [0..1]

BswModuleEntity

BswSchedulableEntity

Figure 7.20: Configuration of BSW ExclusiveArea

SWS Item [ECUC_Rte_09072]

Container Name RteBswExclusiveAreaImpl

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Description Represents one ExclusiveArea of one BswImplementation. Used to

specify the implementation means of this ExclusiveArea.
Configuration Parameters

Name RteExclusiveAreaImplMechanism [ECUC_Rte_09029]

Description To be used implementation mechanism for the specified ExclusiveArea.
Multiplicity 1
Type EcucEnumerationParamDef
Range ALL_INTERRUPT_BLOC
KING
NONE
OS_INTERRUPT_BLOCKI
NG
OS_RESOURCE
OS_SPINLOCK
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswExclusiveAreaOsResourceRef [ECUC_Rte_09073]

Description Optional reference to an OsResource in case
RteExclusiveAreaImplMechanism is configured to OS_RESOURCE for
this ExclusiveArea.
Multiplicity 0..1
Type Reference to OsResource
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteBswExclusiveAreaOsSpinlockRef [ECUC_Rte_09112]

Description Optional reference to an OsSpinlock in case
RteExclusiveAreaImplMechanism is configured to OS_SPINLOCK for
this ExclusiveArea.
Multiplicity 0..1
Type Reference to OsSpinlock
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswExclusiveAreaRef [ECUC_Rte_09074]

Description Reference to the ExclusiveArea for which the implementation
mechanism shall be specified.
Multiplicity 1
Type Foreign reference to EXCLUSIVE-AREA
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

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7.9.2.2 BswEvent to task mapping

BswModuleTemplate

RteBswImplementationRef : Implementation
RteBswModuleInstance :
EcucForeignReferenceDef BswImplementation
EcucParamConfContainerDef +reference
+ arReleaseVersion :RevisionLabelString
lowerMultiplicity = 1
lowerMultiplicity = 0 + vendorApiInfix :Identifier [0..1]
upperMultiplicity = 1
upperMultiplicity = *
destinationType = BSW-IMPLEMENTATION +behavior 1

InternalBehavior
BswInternalBehavior

atpVariation,atpSplitable
+subContainer
+event 0..*
RteBswEventToTaskMapping : RteBswEventRef : AbstractEvent
EcucParamConfContainerDef EcucForeignReferenceDef BswEvent
+reference

lowerMultiplicity = 0 lowerMultiplicity = 1
upperMultiplicity = * upperMultiplicity = 1
destinationType = BSW-EVENT

Os
RteBswMappedToTaskRef : +destination
+reference EcucReferenceDef OsTask :
EcucParamConfContainerDef
lowerMultiplicity = 0
upperMultiplicity = 1 upperMultiplicity = *
lowerMultiplicity = 0

RteBswUsedOsEventRef : +destination OsEvent :

+reference EcucReferenceDef EcucParamConfContainerDef

upperMultiplicity = 1 upperMultiplicity = *
lowerMultiplicity = 0 lowerMultiplicity = 0

RteBswUsedOsAlarmRef : +destination OsAlarm :

+reference EcucReferenceDef EcucParamConfContainerDef

upperMultiplicity = 1 upperMultiplicity = *
lowerMultiplicity = 0 lowerMultiplicity = 0

RteBswUsedOsSchTblExpiryPointRef : +destination OsScheduleTableExpiryPoint :

+reference EcucReferenceDef EcucParamConfContainerDef

upperMultiplicity = 1 upperMultiplicity = *
lowerMultiplicity = 0 lowerMultiplicity = 1

RteBswPositionInTask :
EcucIntegerParamDef
+parameter
upperMultiplicity = 1
lowerMultiplicity = 0
min = 0 +literal NONE :
max = 65535 RteOsSchedulePoint : EcucEnumerationLiteralDef
EcucEnumerationParamDef
+parameter
lowerMultiplicity = 0 +literal
CONDITIONAL :
RteBswActivationOffset : upperMultiplicity = 1 EcucEnumerationLiteralDef
EcucFloatParamDef
+parameter
+literal
min = 0 UNCONDITIONAL :
max = INF EcucEnumerationLiteralDef
lowerMultiplicity = 0
upperMultiplicity = 1
+parameter
RteBswImmediateRestart :
EcucBooleanParamDef

RteBswEventPredecessorSyncPointRef :
defaultValue = false
+reference EcucReferenceDef

upperMultiplicity = 1 +destination
RteSyncPoint :
lowerMultiplicity = 0
EcucParamConfContainerDef

+destination
RteBswEventSuccessorSyncPointRef : lowerMultiplicity = 0
+reference upperMultiplicity = *
EcucReferenceDef

upperMultiplicity = 1
lowerMultiplicity = 0

Figure 7.21: Configuration of BSW Event to Task Mapping

SWS Item [ECUC_Rte_09065]

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Container Name RteBswEventToTaskMapping

Description Maps a BswModuleEntity onto an OsTask based on the activating
BswEvent. A BswModuleEntity can be activated by more than one
BswEvent and thus be mapped to more than one OsTask. In the case
of a BswSchedulableEntity executed via a direct function call this
RteBswEventToTaskMapping is still specified but no
RteBswMappedToTaskRef element is included. The
RteBswPositionInTask parameter is necessary to provide an ordering
of events invoked by the same RTE API.
Configuration Parameters

Name RteBswActivationOffset [ECUC_Rte_09063]

Description Activation offset in seconds.
Multiplicity 0..1
Type EcucFloatParamDef
Range [0 .. INF]
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswImmediateRestart [ECUC_Rte_09093]

Description When RteBswImmediateRestart is set to true the
BswSchedulableEntitiy shall be immediately re-started after termination
if it was activated by this BswEvent while it was already started.

This parameter shall not be set to true when the mapped BswEvent
refers to a BswSchedulableEntitiy which minimumStartInterval attribute
is > 0.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteBswPositionInTask [ECUC_Rte_09068]

Description Each BswSchedulableEntity activation mapped to an OsTask has a
specific position within the task execution. For periodic activation this is
the order of execution. For event driver activation this is the order of
evaluation which actual BswSchedulableEntity has to be executed. In
case of direct function calls this parameter is necessary to provide an
ordering of events when several ExecutableEntities are invoked by the
same RTE API.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 65535
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteOsSchedulePoint [ECUC_Rte_09022]

Description Introduce a schedule point by explicitly calling Os Schedule service
after the execution of the ExecutableEntity. The Rte generator is
allowed to optimize several consecutive calls to Os schedule into one
single call if the ExecutableEntity executions in between have been
skipped.

The absence of this parameter is interpreted as "NONE".

It shall be considered an invalid configuration if the task is preemptable

and the value of this parameter is not set to "NONE" or the parameter
is absent.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range CONDITIONAL A Schedule Point shall be introduced at
the end of the execution of this
ExecutableEntity. The Schedule Point
can be skipped if several Schedule
Points would be called without any
ExecutableEntity execution in between.
NONE No Schedule Point shall be introduced
at the end of the execution of this
ExecutableEntity.
UNCONDITIONAL A Schedule Point shall always be
introduced at the end of the execution
of this ExecutableEntity.

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Post-Build Variant false

Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswEventPredecessorSyncPointRef [ECUC_Rte_09130]

Description The RteBswEventPredecessorSyncPointRef is necessary to provide a
cross core synchronization in case of BswEvents triggered by the same
event source but mapped to tasks belonging to different partitions on
different cores.

The synchronization point must be reached by all referencing

BswEvents before the execution in all related tasks is continued.

In case of RteBswEventPredecessorSyncPointRef the

BswModuleEntity activated by the mapped BswEvent is executed after
the synchronization point is passed.
Multiplicity 0..1
Type Reference to RteSyncPoint
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswEventRef [ECUC_Rte_09064]

Description Reference to the BswEvent.
Multiplicity 1
Type Foreign reference to BSW-EVENT
false
Post-Build Variant
Value

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Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswEventSuccessorSyncPointRef [ECUC_Rte_09131]

Description The RteBswEventSuccessorSyncPointRef is necessary to provide a
cross core synchronization in case of BswEvents triggered by the same
event source but mapped to tasks belonging to different partitions on
different cores.

The synchronization point must be reached by all referencing

BswEvents before the execution in all related tasks is continued.

In case of RteBswEventSuccessorSyncPointRef the BswModuleEntity

activated by the mapped BswEvent is executed before the
synchronization point is entered.
Multiplicity 0..1
Type Reference to RteSyncPoint
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswMappedToTaskRef [ECUC_Rte_09067]

Description Reference to the OsTask the BswSchedulableEntity activated by the
RteBswEventRef is mapped to. If no reference to the OsTask is
specified the BswSchedulableEntity activated by this BswEvent is
executed in the context of the caller.
Multiplicity 0..1
Type Reference to OsTask
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswUsedOsAlarmRef [ECUC_Rte_09069]

Description If an OsAlarm is used to activate the OsTask this BswEvent is mapped
to it shall be referenced here.
Multiplicity 0..1
Type Reference to OsAlarm
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswUsedOsEventRef [ECUC_Rte_09070]

Description If an OsEvent is used to activate the OsTask this BswEvent is mapped
to it shall be referenced here.
Multiplicity 0..1
Type Reference to OsEvent
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteBswUsedOsSchTblExpiryPointRef [ECUC_Rte_09071]

Description If an OsScheduleTableExpiryPoint is used to activate the OsTask this
BswEvent is mapped to it shall be referenced here.
Multiplicity 0..1
Type Reference to OsScheduleTableExpiryPoint
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.9.2.3 BSW Trigger configuration

7.9.2.3.1 BSW Trigger connection

The RteBswRequiredTriggerConnection container is defined in the context of

the RteBswModuleInstance which is the required trigger context. So the reference
to the RteBswRequiredTriggerRef is sufficient to define the required trigger. For
the released trigger the tuple of RteBswReleasedTriggerModInstRef and RteB-
swReleasedTriggerRef is specified.

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RteBswModuleInstance :EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

+destination

+subContainer

RteBswRequiredTriggerConnection : +reference RteBswReleasedTriggerModInstRef :

EcucParamConfContainerDef EcucReferenceDef

lowerMultiplicity = 0
upperMultiplicity = *
RteBswReleasedTriggerRef :
EcucForeignReferenceDef
+reference

lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = TRIGGER

RteBswRequiredTriggerRef :
EcucForeignReferenceDef
+reference

lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = TRIGGER

BswModuleTemplate

ARElement +releasedTrigger AtpStructureElement

AtpBlueprint Identifiable
AtpBlueprintable atpVariation,atpSplitable
0..* Trigger
AtpStructureElement
BswModuleDescription +requiredTrigger + swImplPolicy :SwImplPolicyEnum [0..1]

+ moduleId :PositiveInteger [0..1] atpVariation,atpSplitable

0..*
+masteredTrigger 1
atpSplitable
+internalBehavior 0..* 0..*

InternalBehavior
+triggerDirectImplementation BswTriggerDirectImplementation
BswInternalBehavior
atpVariation,atpSplitable0..* + task :Identifier

Figure 7.22: Configuration of BSW Trigger connection

SWS Item [ECUC_Rte_09077]

Container Name RteBswRequiredTriggerConnection
Description Defines the connection between one requiredTrigger of this BSW
Module instance and one releasedTrigger instance.
Configuration Parameters

Name RteBswReleasedTriggerModInstRef [ECUC_Rte_09075]

Description Reference to the RteBswModuleInstance configuration container which
identifies the instance of the BSW Module. Used with the
RteBswReleasedTriggerRef to unambiguously identify the Trigger
instance.
Multiplicity 1
Type Reference to RteBswModuleInstance
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time

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Scope / Dependency scope: local

Name RteBswReleasedTriggerRef [ECUC_Rte_09076]

Description References the releasedTrigger to which this requiredTrigger shall be
connected.
Multiplicity 1
Type Foreign reference to TRIGGER
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswRequiredTriggerRef [ECUC_Rte_09078]

Description References one requiredTrigger which shall be connected to the
releasedTrigger.
Multiplicity 1
Type Foreign reference to TRIGGER
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.9.2.3.2 BSW Trigger queuing

This configuration determine the size of the queue queuing the issued triggers.
The RteBswExternalTriggerConfig container and RteBswInternalTrigger-
Config container is defined in the context of the RteBswModuleInstance which
already predefines the context of the provided Trigger / BswInternalTrigger-
ingPoint.
[SWS_Rte_CONSTR_09006] The references RteBswTriggerSourceRef has to
be consistent with the RteBswImplementationRef d The references RteB-
swTriggerSourceRef has to be consistent with the RteBswImplementationRef.
This means the referenced Trigger / BswInternalTriggeringPoint has to be-

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long to the BswModuleDescription which is referenced by the related BswImple-

mentation. c()
From BSWMD-T

ARElement
AtpBlueprint
AtpStructureElement
AtpBlueprintable
+releasedTrigger Identifiable
AtpStructureElement
TriggerDeclaration::Trigger
BswOverview::BswModuleDescription atpVariation,atpSplitable 0..*
+ swImplPolicy :SwImplPolicyEnum [0..1]
+ moduleId :PositiveInteger [0..1]

atpSplitable

+internalBehavior 0..*

InternalBehavior
Identifiable
BswBehavior::
BswBehavior::BswInternalTriggeringPoint
BswInternalBehavior
+internalTriggeringPoint
atpVariation,atpSplitable + swImplPolicy :SwImplPolicyEnum [0..1]
0..*

RteBswModuleInstance : RteBswExternalTriggerConfig : RteBswTriggerSourceRef :EcucForeignReferenceDef

EcucParamConfContainerDef EcucParamConfContainerDef
+reference
destinationType = TRIGGER
lowerMultiplicity = 0 lowerMultiplicity = 0 upperMultiplicity = 1
upperMultiplicity = * upperMultiplicity = * lowerMultiplicity = 1

+subContainer

RteBswTriggerSourceQueueLength :
EcucIntegerParamDef
+parameter
defaultValue = 0
lowerMultiplicity = 1
upperMultiplicity = 1
min = 0
max = 4294967295

RteBswInternalTriggerConfig : RteBswTriggerSourceRef :EcucForeignReferenceDef

EcucParamConfContainerDef
+reference
destinationType = BSW-INTERNAL-TRIGGERING-POINT
lowerMultiplicity = 0 upperMultiplicity = 1
upperMultiplicity = * lowerMultiplicity = 1

+subContainer

RteBswTriggerSourceQueueLength :
EcucIntegerParamDef
+parameter
defaultValue = 0
lowerMultiplicity = 1
upperMultiplicity = 1
min = 0
max = 4294967295
(from RTE)

Figure 7.23: Configuration of BSW Trigger queuing

SWS Item [ECUC_Rte_09099]

Container Name RteBswExternalTriggerConfig
Description Defines the configuration of Inter Basic Software Module Entity
Triggering
Configuration Parameters

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Name RteBswTriggerSourceQueueLength [ECUC_Rte_09101]

Description Length of trigger queue on the trigger source side.

The queue is implemented by the RTE. A value greater or equal to 1

requests an queued behavior. Setting the value of
RteTriggerSourceQueueLength to 0 requests an none queued
implementation of the trigger communication.

If there is no RteBswTriggerSourceQueueLength configured for a

Trigger Emitter the default value of 0 applies as well.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value 0
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswTriggerSourceRef [ECUC_Rte_09100]

Description Reference to a Trigger instance in the role releasedTrigger of the
related BSW Module instance.

The referenced Trigger has to belong to the same BSW Module

instance as the RteBswModuleInstance owning this parameter
configures.
Multiplicity 1
Type Foreign reference to TRIGGER
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

SWS Item [ECUC_Rte_09102]

Container Name RteBswInternalTriggerConfig
Description Defines the configuration of internal Basic Software Module Entity
Triggering
Configuration Parameters

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Name RteBswTriggerSourceQueueLength [ECUC_Rte_09104]

Description Length of trigger queue on the trigger source side.

The queue is implemented by the RTE. A value greater or equal to 1

requests an queued behavior. Setting the value of
RteTriggerSourceQueueLength to 0 requests an none queued
implementation of the trigger communication.

If there is no RteBswTriggerSourceQueueLength configured for a

Trigger Emitter the default value of 0 applies as well.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value 0
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswTriggerSourceRef [ECUC_Rte_09103]

Description Reference to a BswInternalTriggeringPoint of the related BSW Module
instance.

The referenced BswInternalTriggeringPoint has to belong to the same

BSW Module instance as the RteBswModuleInstance owning this
parameter configures.
Multiplicity 1
Type Foreign reference to BSW-INTERNAL-TRIGGERING-POINT
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.9.2.4 BSW ModeDeclarationGroup configuration

The RteBswRequiredModeGroupConnection container is defined in the context

of the RteBswModuleInstance which is the required mode group context. So the
reference to the RteBswRequiredModeGroupRef is sufficient to define the required

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mode group. For the provided mode group the tuple of RteBswProvidedModeGrp-
ModInstRef and RteBswProvidedModeGroupRef is specified.
RteBswModuleInstance :EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

+destination
+subContainer

RteBswRequiredModeGroupConnection : +reference RteBswProvidedModeGrpModInstRef :

EcucParamConfContainerDef EcucReferenceDef

lowerMultiplicity = 0
upperMultiplicity = *

RteModeDeclarationMappingSetRef :EcucForeignReferenceDef
+reference
lowerMultiplicity = 0
upperMultiplicity = 1
destinationType = MODE-DECLARATION-MAPPING-SET

RteBswProvidedModeGroupRef :EcucForeignReferenceDef
+reference
lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = MODE-DECLARATION-GROUP-PROTOTYPE

RteBswRequiredModeGroupRef :EcucForeignReferenceDef
+reference
lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = MODE-DECLARATION-GROUP-PROTOTYPE

BswModuleTemplate

ARElement +requiredModeGroup AtpPrototype

AtpBlueprint ModeDeclarationGroupPrototype
AtpBlueprintable atpVariation,atpSplitable
0..*
AtpStructureElement + swCalibrationAccess :SwCalibrationAccessEnum [0..1]
BswModuleDescription
+providedModeGroup
+ moduleId :PositiveInteger [0..1]
atpVariation,atpSplitable
0..*

isOfType
1
+type {redefines atpType}
+modeDeclaration ARElement
AtpStructureElement AtpBlueprint
Identifiable 1..* atpVariation AtpBlueprintable
ModeDeclaration +initialMode AtpType
ModeDeclarationGroup
+ value :PositiveInteger [0..1]
1
+ onTransitionValue :PositiveInteger [0..1]
+firstMode 1..* +secondMode 1

AtpStructureElement ARElement
Identifiable +modeDeclarationMapping AtpType
ModeDeclarationMapping ModeDeclarationMappingSet
1..*

Figure 7.24: Configuration of BSW Scheduler overview

SWS Item [ECUC_Rte_09081]

Container Name RteBswRequiredModeGroupConnection
Description Defines the connection between one requiredModeGroup of this BSW
Module instance and one providedModeGroup instance.
Configuration Parameters

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Name RteBswProvidedModeGroupRef [ECUC_Rte_09079]

Description References the providedModeGroupPrototype to which this
requiredModeGroup shall be connected.
Multiplicity 1
Type Foreign reference to MODE-DECLARATION-GROUP-PROTOTYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswProvidedModeGrpModInstRef [ECUC_Rte_09080]

Description Reference to the RteBswModuleInstance configuration container which
identifies the instance of the BSW Module. Used with the
RteBswProvidedModeGroupRef to unambiguously identify the
ModeDeclarationGroupPrototype instance.
Multiplicity 1
Type Reference to RteBswModuleInstance
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswRequiredModeGroupRef [ECUC_Rte_09082]

Description References requiredModeGroupPrototype which shall be connected to
the providedModeGroupPrototype.
Multiplicity 1
Type Foreign reference to MODE-DECLARATION-GROUP-PROTOTYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteModeDeclarationMappingSetRef [ECUC_Rte_09125]

Description This defines the effective ModeDeclarationMappingSet in the case that
the provided ModeDeclarationGroupPrototype and the required
ModeDeclarationGroupPrototype are not compatible.
Multiplicity 0..1
Type Foreign reference to MODE-DECLARATION-MAPPING-SET
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.9.2.5 BSW Client Server configuration

The RteBswRequiredClientServerConnection container is defined in the con-

text of the RteBswModuleInstance. So the reference to the RteBswRe-
quiredClientServerEntryRef is sufficient to define the required BswModule-
ClientServerEntry. For the provided BswModuleClientServerEntry the
RteBswProvidedClientServerEntryRef is specified.

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RteBswModuleInstance :EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

+destination

+subContainer

RteBswRequiredClientServerConnection : +reference RteBswProvidedClientServerEntryModInstRef :EcucReferenceDef

EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *
RteBswProvidedClientServerEntryRef :EcucForeignReferenceDef

+reference
lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = BSW-MODULE-CLIENT-SERVER-ENTRY

RteBswRequiredClientServerEntryRef :EcucForeignReferenceDef

+reference
lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = BSW-MODULE-CLIENT-SERVER-ENTRY

BswModuleTemplate

ARElement +providedClientServerEntry Referrable

AtpBlueprint BswModuleClientServerEntry
AtpBlueprintable atpVariation,atpSplitable 0..*
AtpStructureElement + isReentrant :Boolean [0..1]
BswModuleDescription +requiredClientServerEntry + isSynchronous :Boolean [0..1]

+ moduleId :PositiveInteger [0..1] atpVariation,atpSplitable 0..*

Figure 7.25: Configuration of BSW Client Server Communication

SWS Item [ECUC_Rte_09117]

Container Name RteBswRequiredClientServerConnection
Description Defines the connection between one requiredClientServerEntry and
one providedClientServerEntry of a BswModuleDescription. This
container shall be provided on the client side of the connection.
Configuration Parameters

Name RteBswProvidedClientServerEntryModInstRef [ECUC_Rte_09124]

Description Reference to the RteBswModuleInstance configuration container which
identifies the instance of the BSW Module. Used with the
RteBswProvidedClientServerEntryRef to unambiguously identify the
BswModuleClientServerEntry instance.
Multiplicity 1
Type Reference to RteBswModuleInstance
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteBswProvidedClientServerEntryRef [ECUC_Rte_09119]

Description Reference the providedClientServerEntry for this connection.
Multiplicity 1
Type Foreign reference to BSW-MODULE-CLIENT-SERVER-ENTRY
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswRequiredClientServerEntryRef [ECUC_Rte_09118]

Description Reference the requiredClientServerEntry for this connection.
Multiplicity 1
Type Foreign reference to BSW-MODULE-CLIENT-SERVER-ENTRY
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.9.2.6 BSW Sender Receiver configuration

The RteBswRequiredSenderReceiverConnection container is defined in the

context of the RteBswModuleInstance. So the reference to the RteBswRequired-
VariableDataPrototypeRef is sufficient to define the required VariableDat-
aPrototype. For the provided VariableDataPrototype the RteBswProvided-
VariableDataPrototypeRef is specified.

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RteBswModuleInstance :EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *

+destination

+subContainer

+reference RteBswProvidedDataModInstRef :EcucReferenceDef

RteBswRequiredSenderReceiverConnection :
EcucParamConfContainerDef

lowerMultiplicity = 0
upperMultiplicity = *
RteBswProvidedVariableDataPrototypeRef :
EcucForeignReferenceDef
+reference

lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = VARIABLE-DATA-PROTOTYPE

RteBswRequiredVariableDataPrototypeRef :
EcucForeignReferenceDef
+reference

lowerMultiplicity = 1
upperMultiplicity = 1
destinationType = VARIABLE-DATA-PROTOTYPE

BswModuleTemplate

ARElement AutosarDataPrototype
+providedData
AtpBlueprint
VariableDataPrototype
AtpBlueprintable atpVariation,atpSplitable 0..*
AtpStructureElement
BswModuleDescription +requiredData

+ moduleId :PositiveInteger [0..1] atpVariation,atpSplitable 0..*

Figure 7.26: Configuration of BSW Sender Receiver Communication

SWS Item [ECUC_Rte_09120]

Container Name RteBswRequiredSenderReceiverConnection
Description Defines the connection between one requiredData and one
providedData of a BswModuleDescription. This container shall be
provided on the receiver side of the connection.
Configuration Parameters

Name RteBswProvidedDataModInstRef [ECUC_Rte_09123]

Description Reference to the RteBswModuleInstance configuration container which
identifies the instance of the BSW Module. Used with the
RteBswProvidedVariableDataPrototypeRef to unambiguously identify
the VariableDataPrototype instance.
Multiplicity 1
Type Reference to RteBswModuleInstance
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name RteBswProvidedVariableDataPrototypeRef [ECUC_Rte_09122]

Description Reference the providedData for this connection.
Multiplicity 1
Type Foreign reference to VARIABLE-DATA-PROTOTYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteBswRequiredVariableDataPrototypeRef [ECUC_Rte_09121]

Description Reference the requiredData for this connection.
Multiplicity 1
Type Foreign reference to VARIABLE-DATA-PROTOTYPE
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

7.10 Configuration of Synchronization Points

With synchronization points it possible to ensure the correct execution order in case of
RTEEvents activated by the identical event source (in particular the same mode man-
ager) but mapped to OsTasks belonging to different partitions which in turn are be-
longing to different cores. With this configuration it is possible to ensure for instance the
execution of all on-exit ExecutableEntitys before the on-transition Exe-
cutableEntitys when required. Therefore the current applicability is constraint to
RTEEvents triggered by mode communication.

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RteEventToTaskMapping : RteOsInteraction : RteBswEventToTaskMapping :

EcucParamConfContainerDef EcucParamConfContainerDef EcucParamConfContainerDef

upperMultiplicity = * lowerMultiplicity = 1 lowerMultiplicity = 0

lowerMultiplicity = 0 upperMultiplicity = * upperMultiplicity = *

+reference +subContainer +reference

RteEventPredecessorSyncPointRef : RteSyncPoint : RteBswEventPredecessorSyncPointRef :

EcucReferenceDef +destination EcucParamConfContainerDef +destination EcucReferenceDef

upperMultiplicity = 1 lowerMultiplicity = 0 upperMultiplicity = 1

lowerMultiplicity = 0 upperMultiplicity = * lowerMultiplicity = 0

+reference +reference

RteEventSuccessorSyncPointRef : +destination +destination RteBswEventSuccessorSyncPointRef :

EcucReferenceDef EcucReferenceDef

upperMultiplicity = 1 upperMultiplicity = 1
lowerMultiplicity = 0 lowerMultiplicity = 0

Figure 7.27: Configuration of Synchronization Points

SWS Item [ECUC_Rte_09127]

Container Name RteSyncPoint
Description The RteSyncPoint is necessary to provide an cross core
synchronization in case of RteEvents triggered by the same event
source but mapped to tasks belonging to different partitions on
different cores.

The synchronization point must be reached by all referencing

RteEvents before the execution in all related tasks is continued.

In case of Rte(Bsw)EventSuccessorSyncPointRef the ExecutableEntity

activated by the mapped event is executed before the synchronization
point is entered.

In case of Rte(Bsw)EventPredecessorSyncPointRef the

ExecutableEntity activated by the mapped event is executed after the
synchronization point is passed.
Configuration Parameters

No Included Containers

RteEventPredecessorSyncPointRef and RteEventSuccessorSync-

PointRef are only applicable for RteEventToTaskMappings where the mapped
RTEEvent is either a SwcModeSwitchEvent or a ModeSwitchedAckEvent.
RteBswEventPredecessorSyncPointRef and RteBswEventSuccessorSync-
PointRef are only applicable for RteBswEventToTaskMappings where the
mapped BswEvent is either a BswModeSwitchEvent or a BswModeSwitchedAck-
Event.

7.11 Configuration of Initialization

In order to support different interactions with the start up code of the ECU the RTE
supports different initialization strategies for variables implementing VariableDat-

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aPrototypes. Basically the initialization can be done either by start-up code or by the
Rte_Start function. Further on it is possible to avoid any initialization for data which
has to be reset safe or is explicitly initialized by other SW, e.g. the RAM Blocks might
be initialized by NVRAM Manager.
Software Component Template and BSW Module Description Template
Rte :EcucModuleDef
ARElement
upperMultiplicity = 1 AtpBlueprint
lowerMultiplicity = 0 AtpBlueprintable
AuxillaryObjects::SwAddrMethod
(from RTE)
+container
+ memoryAllocationKeywordPolicy :MemoryAllocationKeywordPolicyType [0..1]
+ option :Identifier [0..*]
RteInitializationBehavior : RteSectionInitializationPolicy : + sectionInitializationPolicy :SectionInitializationPolicyType [0..1]
EcucParamConfContainerDef +parameter EcucStringParamDef + sectionType :MemorySectionType [0..1]
primitive
upperMultiplicity = * upperMultiplicity = * PrimitiveTypes::
lowerMultiplicity = 1 lowerMultiplicity = 1 SectionInitializationPolicyType

+parameter
+literal
RteInitializationStrategy : RTE_INITIALIZATION_STRATEGY_NONE :EcucEnumerationLiteralDef
EcucEnumerationParamDef

upperMultiplicity = 1 +literal
lowerMultiplicity = 1 RTE_INITIALIZATION_STRATEGY_AT_DATA_DECLARATION :EcucEnumerationLiteralDef

+literal RTE_INITIALIZATION_STRATEGY_AT_DATA_DECLARATION_AND_PARTITION_RESTART :
EcucEnumerationLiteralDef

+literal RTE_INITIALIZATION_STRATEGY_AT_RTE_START_AND_PARTITION_RESTART :
EcucEnumerationLiteralDef

Figure 7.28: Configuration of initialization strategy

SWS Item [ECUC_Rte_09087]

Container Name RteInitializationBehavior
Description Specifies the initialization strategy for variables allocated by RTE with
the purpose to implement VariableDataPrototypes.

The container defines a set of RteSectionInitializationPolicys and one

RteInitializationStrategy which is applicable for this set.
Configuration Parameters

Name RteInitializationStrategy [ECUC_Rte_09089]

Description Definition of the initialization strategy applicable for the
SectionInitializationPolicys selected by RteSectionInitializationPolicy.
Multiplicity 1
Type EcucEnumerationParamDef
Range RTE_INITIALIZATION_ST Variables shall be initialized at its
RATEGY_AT_DATA_DEC declaration to the value defined by the
LARATION related initValue attribute.
RTE_INITIALIZATION_ST Variables shall be initialized at its
RATEGY_AT_DATA_DEC declaration to the value defined by the
LARATION_AND_PARTIT related initValue attribute and during
ION_RESTART execution of Rte_RestartPartition to
the value defined by the related
initValue attribute.

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RTE_INITIALIZATION_ST Variables shall be initialized during

RATEGY_AT_RTE_STAR execution of Rte_Start and
T_AND_PARTITION_RES Rte_RestartPartition to the value
TART defined by the related initValue
attribute.
RTE_INITIALIZATION_ST Variables shall not be initialized at all.
RATEGY_NONE
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name RteSectionInitializationPolicy [ECUC_Rte_09088]

Description This parameter describes the SectionInitializationPolicys for which a
particular RTE initialization strategy applies.

The SectionInitializationPolicy describes the intended initialization of

MemorySections.

The following values are standardized in AUTOSAR Methodology:

NO-INIT: No initialization and no clearing is performed. Such
data elements must not be read before one has written a value
into it.
INIT: To be used for data that are initialized by every reset to the
specified value (initValue).
POWER-ON-INIT: To be used for data that are initialized by
"Power On" to the specified value (initValue). Note: there might
be several resets between power on resets.
CLEARED: To be used for data that are initialized by every reset
to zero.
POWER-ON-CLEARED: To be used for data that are initialized
by "Power On" to zero. Note: there might be several resets
between power on resets.

Multiplicity 1..*
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

[SWS_Rte_07075] d The RTE generator shall reject configurations where not all
occurring sectionInitializationPolicy attribute values are configured to an
RteInitializationStrategy. c(SRS_Rte_00018)
The call of Rte_Start may trigger RunnableEntitys for initialization purpose.
Those RunnableEntitys are either triggered by SwcModeSwitchEvents or
InitEvents. To support the scheduling of such RunnableEntitys in the start up
code of the ECU (e.g. by BswM or EcuM) its possible to map such RTEEvents to
RteInitializationRunnableBatch containers which results in the existence of
Rte_Init APIs.
Rte :EcucModuleDef

upperMultiplicity = 1
lowerMultiplicity = 0

+container

RteInitializationRunnableBatch :
EcucParamConfContainerDef

upperMultiplicity = *
lowerMultiplicity = 0

+destination

RteUsedInitFnc :
EcucReferenceDef

upperMultiplicity = 1
lowerMultiplicity = 0

+reference

RteEventToTaskMapping : RtePositionInTask :
EcucParamConfContainerDef +parameter EcucIntegerParamDef

upperMultiplicity = * upperMultiplicity = 1
lowerMultiplicity = 0 lowerMultiplicity = 0
min = 0
max = 65535

Figure 7.29: Configuration of Rte_Init functions

SWS Item [ECUC_Rte_09115]

Container Name RteInitializationRunnableBatch
Description This container corresponds to an Rte_Init_<shortName of this
container> function invoking the mapped RunnableEntities.
Configuration Parameters

No Included Containers

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Rte_Init API may only schedule RunnableEntitys for initialization purpose ore
which are on-entry Runnable Entities.
[SWS_Rte_CONSTR_09063] Restricted kinds of RTEEvents which may
mapped to RteInitializationRunnableBatch containers d Only SwcMod-
eSwitchEvents with activation = onEntry and referring to the initialMode or
InitEvents may be mapped to RteInitializationRunnableBatch containers
with the means of a RteUsedInitFnc reference. c()
[SWS_Rte_06769] d The RTE Generator shall reject configurations vio-
lating [SWS_Rte_CONSTR_09063]. c(SRS_Rte_00143, SRS_Rte_00240,
SRS_Rte_00018)
[SWS_Rte_CONSTR_09064] A single RteInitializationRunnableBatch con-
tainer may not handle RTEEvents of different partitions d All RTEEvents
mapped to a RteInitializationRunnableBatch container may only trigger
RunnableEntitys belonging to the same partition. c()
[SWS_Rte_06770] d The RTE Generator shall reject configurations vio-
lating [SWS_Rte_CONSTR_09064]. c(SRS_Rte_00143, SRS_Rte_00240,
SRS_Rte_00018)

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A Metamodel Restrictions
This chapter lists all the restrictions to the AUTOSAR meta-model this version of the
AUTOSAR RTE specification document relies on. The RTE generator shall reject con-
figuration where any of the specified restrictions are violated.

A.1 Restrictions concerning WaitPoint

1. [SWS_Rte_01358] d The RTE shall raise an error if [constr_1091] is violated, so
if RunnableEntity has WaitPoint connected to any of the following RTE-
Events:
OperationInvokedEvent
SwcModeSwitchEvent
TimingEvent
BackgroundEvent
DataReceiveErrorEvent
ExternalTriggerOccurredEvent
InternalTriggerOccurredEvent
DataWriteCompletedEvent
These events can only start a runnable. c(SRS_Rte_00092, SRS_Rte_00018)
Note: The only events that can unblock a WaitPoint are those listed in [con-
str_1091].
Rationale: For OperationInvokedEvents, SwcModeSwitchEvents,
TimingEvents, BackgroundEvents DataReceiveErrorEvent, Ex-
ternalTriggerOccurredEvent, InternalTriggerOccurredEvent,
and DataWriteCompletedEvent it suffices to allow the activation of a
RunnableEntity.
2. [SWS_Rte_07402] d The RTE generator shall reject a model where two (or
more) different RunnableEntitys in the same internal behavior each have a
WaitPoint referencing the same DataReceivedEvent, and the runnables are
mapped to different tasks. c(SRS_Rte_00092, SRS_Rte_00018)
Rationale: In the same software components, the two runnables will attempt to
read from the same queue, and only the one that accesses the queue first will
actually receive the data.

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A.2 Restrictions concerning RTEEvent

1. [SWS_Rte_03526] d The RTE generator shall reject configurations in which a
RunnableEntity is triggered by multiple OperationInvokedEvents but vi-
olating the constraint [constr_2000] Compatibility of ClientServerOperations trig-
gering the same RunnableEntity as defined in document [2] c(SRS_Rte_00072,
SRS_Rte_00018)
Rationale: The signature of the RunnableEntity is dependent on its
connected RTEEvent. Multiple OperationInvokedEvents are only sup-
ported if all referred ClientServerOperations would result in the same
RunnableEntity prototype for the server runnable (see 5.7.5.6).
2. [SWS_Rte_03010] d One runnable entity shall only be resumed by one sin-
gle RTEEvent on its WaitPoint. The RTE doesnt support the WaitPoint
of one runnable entity connected to several RTEEvents. c(SRS_Rte_00092,
SRS_Rte_00018)
Rationale: The WaitPoint of the runnable entity is caused by calling of the
RTE API. One runnable entity can only call one RTE API at a time, and so it can
only wait for one RTEEvent.
3. [SWS_Rte_07007] d The RTE generator shall reject configurations where dif-
ferent execution instances of a runnable entity, which use implicit data access,
are mapped to different preemption areas. c(SRS_Rte_00018, SRS_Rte_00128,
SRS_Rte_00129, SRS_Rte_00133, SRS_Rte_00142)
Rationale: Buffers used for implicit communication shall be consistent during the
whole task execution. If it is guaranteed that one task does not preempt the other,
direct accesses to the same copy buffer from different tasks are possible.
4. [SWS_Rte_07403] d The RTE generator shall reject a model where in the same
SwcInternalBehavior two (or more) different DataReceivedEvents, that
reference the same VariableDataPrototype with event semantics, trig-
ger different runnable entities mapped to different tasks. c(SRS_Rte_00072,
SRS_Rte_00018)
Rationale: In the same software components, the two runnables will attempt to
read from the same queue, and only the one that accesses the queue first will
actually receive the data.

A.3 Restrictions concerning queued implementation policy

1. [SWS_Rte_03018] d RTE does not support receiving with WaitPoint for Vari-
ableDataPrototypes with their swImplPolicy attribute is not set to queued.
c(SRS_Rte_00109, SRS_Rte_00092, SRS_Rte_00018)

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Requirement [SWS_Rte_03018] rejects configurations where a DataRe-

ceivedEvent is referenced by a WaitPoint and references a VariableDat-
aPrototype referenced by a NvDataInterface.
Rationale: unqueued implementation policy indicates that the receiver shall not
wait for the VariableDataPrototype.
2. All the VariableAccesses in the dataSendPoint role referring to one Vari-
ableDataPrototype through one PPortPrototype are considered to have
the same behavior by sending and acknowledgment reception. All DataSend-
CompletedEvents that reference VariableAccesses in the dataSendPoint
role referring to the same VariableDataPrototype are considered equiva-
lent.
Rationale: The API Rte_Send/Rte_Write is dependent on the port name and
the VariableDataPrototype name, not on the VariableAccesses. For
each combination of one VariableDataPrototype and one port only one API
will be generated and implemented for sending or acknowledgement reception.

A.4 Restrictions concerning ServerCallPoint

1. [SWS_Rte_03014] d All the ServerCallPoints referring to one
ClientServerOperation through one RPortPrototype are consid-
ered to have the same behavior by calling service. The RTE generator shall
reject configuration where this is violated. c(SRS_Rte_00051, SRS_Rte_00018)
Rationale: The API Rte_Call is dependent on the port name and the operation
name, not on the ServerCallPoints. For each combination of one operation
and one port only one API will be generated and implemented for calling a ser-
vice. It is e.g. not possible to have different timeout values specified for different
ServerCallPoints of the same ClientServerOperation. It is also not al-
lowed to specify both, a synchronous and an asynchronous server call point for
the same ClientServerOperation instance.
2. [SWS_Rte_03605] d If several require ports of a software component are cate-
gorized by the same client/server interface, all invocations of the same operation
of this client/server interface have to be either synchronous, or all invocations of
the same operation have to be asynchronous. This restriction applies under the
following conditions:
the usage of the indirect API is specified for at least one of the respective
port prototypes and/or
the software component supports multiple instantiation, and the RTE gener-
ation shall be performed in compatibility mode.
c(SRS_Rte_00051, SRS_Rte_00018)

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Rationale: The signature of Rte_Call and the existence of Rte_Result de-

pend on the kind of invocation.
3. [SWS_Rte_07170] d The RTE generator shall reject the configuration where
[constr_2006] is violated. c(SRS_Rte_00051, SRS_Rte_00018)
Rationale: The support of several AsynchronousServerCallResultPoints per
AsynchronousServerCallPoint would potentially support multiple Asyn-
chronousServerCallReturnsEvents as well as multiple WaitPoints for
the same AsynchronousServerCallPoint.

A.5 Restriction concerning multiple instantiation of software

components
1. [SWS_Rte_07101] d The RTE generator shall reject configurations where [con-
str_2024] is violated, so in which a PortAPIOption with enableTakeAddress
= TRUE is defined by a software-component supporting multiple instantiation. c
(SRS_Rte_00018)
Rationale: The main focus of the feature is support for configuration of AU-
TOSAR Services which are limited to single instances.

A.6 Restrictions concerning runnable entity

1. [SWS_Rte_03527] d The RTE does NOT support multiple Runnable Entities that
share the same entry point. c(SRS_Rte_00072, SRS_Rte_00018)
Rationale: The name of the runnable entity entry point is formed by a combi-
nation of SWC symbol prefix and symbol attribute of RunnableEntity. This
means that two runnables in different SWCs can have the same symbol attribute
as long as different SWC prefixes are used.
2. [SWS_Rte_02733] d The RTE Generator shall reject a configuration where a
runnable has the attribute canBeInvokedConcurrently set to true and the
attribute minimumStartInterval set to greater zero. c(SRS_Rte_00018)
Rationale: If a runnable should run concurrently (i.e., have several Exe-
cutableEntity execution-instances), this implies that the minimum in-
terval between the start of the runnables is zero. The configuration to be rejected
is inconsistent.

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A.7 Restrictions concerning runnables with dependencies on

modes
1. Operations may not be disabled by a mode disabling dependency.
[SWS_Rte_02706] d RTE shall reject configurations that contain OperationIn-
vokedEvents with a mode disabling dependency. c(SRS_Rte_00143,
SRS_Rte_00018)
Rationale: It is a preferable implementation, if the server responds with an ex-
plicit application error, when the server operation is not supported in a mode.
To implement the disabling of operations would require a high amount of book
keeping even for internal client server communication to prevent that the unique
request response mapping gets lost.
2. Only a category 1 runnable may be triggered by
a SwcModeSwitchEvent
an RTEEvent with a mode disabling dependency
[SWS_Rte_02500] d The RTE generator shall reject configurations with cate-
gory 2 runnables connected to SwcModeSwitchEvents and RTEEvents / Bsw-
Events with mode disabling dependencys if the mode machine instance is
synchronous. The rejection may be reduced to a warning when the RTE gener-
ator is explicitly set to a non strict mode. c(SRS_Rte_00143, SRS_Rte_00213,
SRS_Rte_00018)
Rationale: The above runnables are executed or terminated on the transitions
between different modes. To execute the mode switch withing finite time, also
these runnables have to be executed within finite execution time.
3. All on-entry ExecutableEntitys, on-transition ExecutableEn-
titys, and on-exit ExecutableEntitys of the same core local mode
user group should be mapped to the same task in case of synchronous mode
switching procedure.
[SWS_Rte_02662] d The RTE generator shall reject configurations with on-entry,
on-transition, or on-exit ExecutableEntitys of the same core local mode
user group that are mapped to different tasks in case of synchronous mode
switching procedure. c(SRS_Rte_00143, SRS_Rte_00213, SRS_Rte_00018)
In case of asynchronous mode switching procedure, a mapping of all affected
runnables to no task is also possible.
Rationale: This restriction simplifies the implementation of the semantics of a
synchronous mode switch.
4. To guarantee that all mode disabling dependent ExecutableEntitys of
a core local mode user group have terminated before the start of the on-

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exit ExecutableEntitys of the transition, the mode disabling depen-

dent ExecutableEntitys should run with higher or equal priority.
[SWS_Rte_02663] d The RTE generator shall reject configurations with mode
disabling dependent ExecutableEntitys that are mapped to a task
with lower priority than the task that contains the on-entry ExecutableEn-
titys and on-exit ExecutableEntitys of that core local mode user
group supporting a synchronous mode switching procedure. c(SRS_Rte_00143,
SRS_Rte_00213, SRS_Rte_00018)
5. [SWS_Rte_02664] d The RTE generator shall reject configurations of a task with
on-exit ExecutableEntitys mapped after on-entry Exe-
cutableEntitys or
on-transition ExecutableEntitys mapped after on-entry Exe-
cutableEntitys or
on-exit ExecutableEntitys mapped after on-transition Exe-
cutableEntitys
of the same mode machine instance supporting a synchronous mode switch-
ing procedure. c(SRS_Rte_00143, SRS_Rte_00213, SRS_Rte_00018)
Rationale: This restriction simplifies the implementation of the semantics of a
synchronous mode switch.
6. [SWS_Rte_07157] d The RTE generator shall reject configurations with
on-exit ExecutableEntitys mapped after on-entry Exe-
cutableEntitys or
on-transition ExecutableEntitys mapped after on-entry Exe-
cutableEntitys or
on-exit ExecutableEntitys mapped after on-transition Exe-
cutableEntitys
of the same software component or Basic Software Module for a mode ma-
chine instance supporting an asynchronous mode switching procedure. c
(SRS_Rte_00143, SRS_Rte_00213, SRS_Rte_00018)
Rationale: This restriction simplifies the implementation of the semantics of an
asynchronous mode switch.
7. If a mode is used to trigger a runnable for entering or leaving the mode, but this
runnable has a mode disabling dependency on the same mode, the mode
disabling dependency inhibits the activation of the runnable on the transition
(see section 4.4.4).

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To prevent such a misleading configuration, it is strongly recommended

not to configure a mode disabling dependency for an on-entry Exe-
cutableEntity or on-exit ExecutableEntity, using the same mode.
8. In case that the mode machine instance is initialized by Rte_Init API the related
on-entry Runnable Entities for the initialMode have to be executed
in the context of the Rte_Init API. In order to enable the complete transition
to the initialMode it is required that all on-entry Runnable Entities
are mapped to RteInitializationRunnableBatch containers otherwise a
part of the on-entry Runnable Entities wouldnt be scheduled during the
transition to the initialMode.
[SWS_Rte_CONSTR_09062] Entire mapping of on-entry Runnable En-
tities for initialMode to RteInitializationRunnableBatch contain-
ers d Either all or none of the on-entry Runnable Entities of a particular
mode machine instance for the initialMode shall be mapped to RteIni-
tializationRunnableBatch containers. c()
[SWS_Rte_06768] d The RTE Generator shall reject configurations vio-
lating [SWS_Rte_CONSTR_09062]. c(SRS_Rte_00143, SRS_Rte_00240,
SRS_Rte_00018)
Please note as well [SWS_Rte_CONSTR_09063] which limits the applicability of
the mapping to RteInitializationRunnableBatch containers.

A.8 Restriction concerning SwcInternalBehavior

1. [SWS_Rte_07686] d The RTE Generator shall reject configurations where
an ApplicationSwComponentType, ServiceSwComponentType, Com-
plexDeviceDriverSwComponentType, EcuAbstractionSwComponent-
Type, SensorActuatorSwComponentType or ServiceProxySwCompo-
nentType does not contain a SwcInternalBehavior. c(SRS_Rte_00018)

A.9 Restrictions concerning Initial Value

1. [SWS_Rte_07642] d When the external configuration switch
strictInitialValuesCheck is enabled, the RTE Generator shall reject
configurations where a SwAddrMethod has a sectionInitializationPol-
icy set to init but no initValues are specified on the sender or receiver
side. c(SRS_Rte_00068, SRS_Rte_00108, SRS_Rte_00018)
Rationale: The initValue is used to guarantee that the RTE wont deliver un-
defined values.
2. [SWS_Rte_08311] d When the external configuration switch
strictInitialValuesCheck is enabled, the RTE Generator shall reject

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configurations where a SwAddrMethod has a sectionInitializationPol-

icy set to init but no initValue is specified on the inter runnable variable. c
(SRS_Rte_00068, SRS_Rte_00108, SRS_Rte_00018)
Rationale: The initValue is used to guarantee that the RTE wont deliver un-
defined values.
3. [SWS_Rte_07681] d If strict checking of initial values is enabled
(see [SWS_Rte_07680]), the RTE Generator shall reject configurations
where a ParameterDataPrototype has no initValues. c(SRS_Rte_00108,
SRS_Rte_00018)
Rationale: This allows to provide the values with a calibration without any in-
volvements from the RTE Generator, and still permits to enable a stricter check
on projects where it is required.

A.10 Restriction concerning PerInstanceMemory

1. [SWS_Rte_07045] d The RTE generator shall reject configurations where the
type attribute of a C typed PerInstanceMemory is equal to the name
of a ImplementationDataType contained in the input configuration. c
(SRS_Rte_00013, SRS_Rte_00077)
Rationale: This would lead to equally named C type definitions.

A.11 Restrictions concerning unconnected r-port

1. [SWS_Rte_03019] d If strict checking has been enabled (see [SWS_Rte_05099])
there shall not be unconnected r-port. The RTE generator shall in this case reject
the configuration with unconnected r-port. c(SRS_Rte_00139, SRS_Rte_00018)
Rationale: Unconnected r-port is considered as wrong configuration of the sys-
tem.
2. [SWS_Rte_02750] d The RTE Generator shall reject configurations where an r-
port typed with a ParameterInterface is not connected and an initValue of
a ParameterRequireComSpec is not provided for each ParameterDataPro-
totypes of this ParameterInterface. c(SRS_Rte_00139, SRS_Rte_00159,
SRS_Rte_00018)

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A.12 Restrictions regarding communication of mode switch noti-

fications
1. [SWS_Rte_02670] dRTE shall not support connections with multiple senders
(n:1 communication) of mode switch notifications connected to the
same receiver. The RTE generator shall reject configurations with multiple
senders of mode switch notifications connected to the same receiver. c
(SRS_Rte_00131, SRS_Rte_00018)
Rationale: No use case is known to justify the required complexity.
2. [SWS_Rte_08788] d RTE shall reject configurations
where one ModeDeclarationGroupPrototype of a provide port is con-
nected to ModeDeclarationGroupPrototypes of require ports from
more than one partition
and
where at least one of the mode user partitions can be restarted
and
where the modeUserErrorBehavior of ModeDeclarationGroup is not
set to lastMode
c(SRS_Rte_00131, SRS_Rte_00018)
3. For each ModeDeclarationGroup, used in the SW-Cs ports, RTE needs a
unique mapping to an ImplementationDataType.
[SWS_Rte_02738] d RTE shall reject a configuration, in which there is not ex-
actly one ModeRequestTypeMap referencing the ModeDeclarationGroup
used in a ModeDeclarationGroupPrototype of the SW-Cs ports. c
(SRS_Rte_00144, SRS_Rte_00018)

A.13 Restrictions regarding Measurement and Calibration

1. [SWS_Rte_03951] d RTE does not support measurement of queued communi-
cation. c(SRS_Rte_00153, SRS_Rte_00018)
Rationale: Measurement of queued communication is not supported yet. Rea-
sons are:
A queue can be empty. Whats to measure then? Data interpretation is
ambiguous.
Which of the queue entries the measurement data has to be taken from
(first pending entry, last entry, an intermediate one, mean value, min. or

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max. value)? Needs might differ out of user view? Data interpretation is
ambiguous.
Compared e.g. to sender-receiver last-is-best approach only inefficient so-
lutions are possible because implementation of queues entails storage of
information dynamically at different memory locations. So always additional
copies are required.
2. [SWS_Rte_03970] d The RTE generator shall reject configurations violating [con-
str_1092] so containing require ports attached to ParameterSwComponent-
Types. c(SRS_Rte_00154, SRS_Rte_00156, SRS_Rte_00018)
Rationale: Require ports on ParameterSwComponentTypes dont make
sense. ParameterSwComponentTypes only have to provide calibration param-
eters to other SwComponentTypes.

A.14 Restriction concerning ExclusiveAreaImplMechanism

1. Usage of WaitPoints is restricted depending on ExclusiveAreaImplMech-
anism
If an exclusive areas configuration value for ExclusiveAreaImplMechanism is In-
terruptBlocking or OsResource, no runnable entity shall contain any WaitPoint
inside this exclusive area.
Please note that a wait point can either be a modelling WaitPoint e. g. a Wait-
Point in the SW-C description caused by the usage of a blocking API (e. g.
Rte_Receive) or an implementation wait point caused by a special implementa-
tion to fulfill the requirements of the ECU configuration, e. g. the runnable-to-task
mapping.
Rationale: The operating system has the limitation that a WaitEvent call is
not allowed with disabled interrupts. Therefore the implementation mechanism
InterruptBlocking cannot be used if the exclusive area contains a WaitPoint.
Further the operating system has the limitation that an OS WaitPoint cannot
be entered with occupied OS Resources. This implies that the implementation
mechanism OsResource cannot be used if the exclusive area contains a Wait-
Point.

A.15 Restrictions concerning AtomicSwComponentTypes

1. [SWS_Rte_07190] d The RTE generator shall reject configurations where multi-
ple SwComponentTypes have the same component type symbol regardless
of the ARPackage hierarchy. c(SRS_Rte_00018)

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Rational: This is required to generated unique names for the Application Header
Files and component data structures.
2. [SWS_Rte_07191] d The RTE generator shall reject configurations where a
SwComponentType has PortPrototypes typed by different PortInter-
faces with equal short name but conflicting ApplicationErrors. Applica-
tionErrors are conflicting if ApplicationErrors with same name do have
different errorCodes. c(SRS_Rte_00018)
Rational: This is required to generated unique symbolic names for Applica-
tionErrors. (see also [SWS_Rte_02576])

A.16 Restriction concerning the enableUpdate attribute of Non-

queuedReceiverComSpecs
1. [SWS_Rte_07654] d The RTE Generator shall reject configurations violating
[constr_1103] so where a VariableDataPrototype is referenced by a Non-
queuedReceiverComSpec with the enableUpdate attribute enabled, when
this VariableDataPrototype is referenced by a VariableAccess in the
dataReadAccess role. c(SRS_Rte_00179, SRS_Rte_00018)
Rational: the update flag is restricted to explicit communication currently.

A.17 Restrictions concerning the large and dynamic data type

1. [SWS_Rte_07810] d The RTE shall reject the configuration if a dataEle-
ment that contain an ImplementationDataType with subElements with ar-
raySizeSemantics equal to variableSize resolves to another type than
uint8[n]. c(SRS_Rte_00018)
Rationale: COM limits the dynamic signals to the ComSignalType UINT_8DYN
(see the requirement COM569). COM doesnt support dynamic signals included
into signal groups. See more explanations in chapter 4.3.1.14.
2. [SWS_Rte_08423] d The RTE shall reject the configuration if an Imple-
mentationDataType does not have a dynamicArraySizeProfile de-
fined and contains a subElement with the category ARRAY that in turn con-
tains a subElement with arraySizeSemantics set to variableSize. c
(SRS_Rte_00018)
3. [SWS_Rte_07811] d The RTE shall reject configurations where a dataElement
mapped to a Com I-PDU with ComIPduType equal to TP and swImplPolicy is
different from queued and supportedFeatures of the PortAPIOption is not
set to supportsBufferLocking. c(SRS_Rte_00018)

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Rationale: Otherwise COM might return COM_BUSY. See more explanations in

chapter 4.3.1.15.
4. [SWS_Rte_08603] d The RTE shall reject configurations where a dataElemnt
mapped to a LdCom I-PDU with LdComApiType equals to LdCom_TP and
swImplPolicy is different from queued and supportedFeatures of the
PortAPIOption is not set to supportsBufferLocking. c(SRS_Rte_00018)
5. [SWS_Rte_08604] d The RTE shall reject configurations where a
ClientServerOperation mapped to a Com I-PDU with ComIPduType
equal to TP and supportedFeatures of the PortAPIOption is not set to
supportsBufferLocking. c(SRS_Rte_00018)
6. [SWS_Rte_08605] d The RTE shall reject configurations where a
ClientServerOperation mapped to a LdCom I-PDU with LdComApi-
Type equals to LdCom_TP and supportedFeatures of the PortAPIOption
is not set to supportsBufferLocking. c(SRS_Rte_00018)
7. [SWS_Rte_07812] d The RTE shall reject the configuration if a dataElement
with an ImplementationDataType with subElements with arraySizeSe-
mantics equal to variableSize has a swImplPolicy different from queued.
c(SRS_Rte_00018)
Rationale: Otherwise COM might return COM_BUSY. See more explanations in
chapter 4.3.1.15.

A.18 Restriction concerning REFERENCE types

1. [SWS_Rte_07670] d The RTE shall reject a configuration violating [constr_1295].
c(SRS_Rte_00018)
Rationale: Only for AUTOSAR services, complex device drivers or ECU abstrac-
tion, the use of references is allowed to prevent the misuse of references for
communication via the referenced memory (intra-partition scope). For example,
such a misuse could occur with application software components communicating
together and mapped to different partitions or ECUs.

A.19 Restriction concerning ModeDeclarationGroup categories

and value attributes
1. [SWS_Rte_06801] d The RTE generator shall reject a configuration if constraint
[constr_1298] is violated. c(SRS_Rte_00018)
[SWS_Rte_06802] d The RTE generator shall reject a configuration if constraint
[constr_1299] is violated. c(SRS_Rte_00018)

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[SWS_Rte_06803] d The RTE generator shall reject a configuration if constraint

[constr_1181] is violated. c(SRS_Rte_00018)
Rationale: In case of category EXPLICIT_ORDER the onTransitionValue
and value attributes are required to generate the according definitions (see
5.5.4 and 6.4.2). Thereby unique numbers are required. In case of ALPHA-
BETIC_ORDER the definition of those values are meaningless and causing the
risk of inconsistency to the numbering according the alphabetical sorting.

A.20 Restrictions concerning C/S Interfaces

1. [SWS_Rte_07845] d The Rte Generator shall reject configurations where
a ClientServerOperation in a PPortPrototype is defined but no
RunnableEntity is triggered by an OperationInvokedEvent that refer-
ences the ClientServerOperation. c(SRS_Rte_00029, SRS_Rte_00018)
Rationale: Otherwise the implementation by a server runnable of the operation
in the C/S interface does not exist.

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B External Requirements
A summary on model constraints is provided in document [34].

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C MISRA C Compliance
In general, all RTE code, whether generated or not, shall conform to the MISRA C
standard [SWS_Rte_01168] [27]. This chapter lists all the MISRA C rules that may be
violated by the generated RTE.
The MISRA C standard was defined with having mainly hand-written code in mind. Part
of the MISRA C rules only apply to hand-written code, they do not make much sense
in the context of automatic code generation. Additionally, there are some rules that are
violated because of technical reasons, mainly to reduce RTE overhead.
The rules listed in this chapter are expected to be violated by RTE code. Violations to
the rules listed here do not need to be documented as non-compliant to MISRA C in
the generated code itself.
MISRA rule 2.3
Description A project should not contain unused type declarations.
Violations This is in support of [SWS_Rte_02648].

Table C.1: MISRA rule 2.3

MISRA rules 5.1 to 5.1, Dir1.1

Identifiers (internal and external) shall not rely on significance of more than 31
Description characters. Furthermore the compiler/linker shall be checked to ensure that 31
character significance and case sensitivity are supported for external identifiers.
The defined RTE naming convention may result in identifiers with more than 31
Violations
characters. The compliance to this rule is under users control.

Table C.2: MISRA rules 5.1 to 5.1, Dir1.1

MISRA rule 8.5

Description An external object or function shall be declared once and in one and only one file.
Violations This is in support of application header file generation.

Table C.3: MISRA rule 8.5

MISRA rule 8.8

The static storage class specifier shall be used in all declarations of objects and
Description
functions that have internal linkage.
E.g. for the purpose of monitoring during calibration or debugging it may be nec-
Violations
essary to use non-static declarations at file scope.

Table C.4: MISRA rule 8.8

MISRA rule 12.3

Description The comma operator should not be used.
Function-like macros may have to use the comma operator. Function-like macros
Violations
are required for efficiency reasons [SRS_BSW_00330].

Table C.5: MISRA rule 12.3

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MISRA rule 11.2

Conversions shall not be performed between a pointer to an incomplete type and
Description
any other type.
Casting to/from pointer type may be needed for the interface with COM. Casting
Violations from a pointer to a data element with status to a pointer to a data ele-
ment without status.

Table C.6: MISRA rule 11.2

MISRA rule 11.3

A cast shall not be performed between a pointer to object type and a pointer to a
Description
different object type.
Casting to/from pointer type may be needed for the interface with COM. Casting
Violations from a pointer to a data element with status to a pointer to a data ele-
ment without status.

Table C.7: MISRA rule 11.3

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D Referenced Meta Classes

Class ARPackage
Package M2::AUTOSARTemplates::GenericStructure::GeneralTemplateClasses::ARPackage
Note AUTOSAR package, allowing to create top level packages to structure the contained
ARElements.

ARPackages are open sets. This means that in a file based description system
multiple files can be used to partially describe the contents of a package.

This is an extended version of MSRs SW-SYSTEM.

Base ARObject, AtpBlueprint, AtpBlueprintable, CollectableElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
arPackage ARPackage * aggr This represents a sub package within an
ARPackage, thus allowing for an unlimited
package hierarchy.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=blueprintDerivationTime
xml.sequenceOffset=30
element PackageableEle * aggr Elements that are part of this package
ment
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=systemDesignTime
xml.sequenceOffset=20
referenceB ReferenceBase * aggr This denotes the reference bases for the package.
ase This is the basis for all relative references within
the package. The base needs to be selected
according to the base attribute within the
references.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortLabel
xml.sequenceOffset=10

Table D.1: ARPackage

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Class ApplicationArrayDataType
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note An application data type which is an array, each element is of the same application
data type.

Tags: atp.recommendedPackage=ApplicationDataTypes
Base ARElement, ARObject, ApplicationCompositeDataType, ApplicationDataType, Atp
Blueprint, AtpBlueprintable, AtpClassifier, AtpType, AutosarDataType, Collectable
Element, Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
dynamicAr String 0..1 attr Specifies the profile which the array will follow if it
raySizePro is a variable size array.
file
element ApplicationArray 1 aggr This association implements the concept of an
Element array element. That is, in some cases it is
necessary to be able to identify single array
elements, e.g. as input values for an interpolation
routine.

Table D.2: ApplicationArrayDataType

Class ApplicationArrayElement
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::DataPrototypes
Note Describes the properties of the elements of an application array data type.
Base ARObject, ApplicationCompositeElementDataPrototype, AtpFeature, AtpPrototype,
DataPrototype, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
arraySizeH ArraySizeHandli 0..1 attr The way how the size of the array is handled.
andling ngEnum
arraySizeS ArraySizeSema 0..1 attr This attribute controls how the information about
emantics nticsEnum the array size shall be interpreted.
indexData ApplicationPrimi 0..1 ref This reference can be taken to assign a
Type tiveDataType CompuMethod of category TEXTTABLE to the
array. The texttable entries associate a textual
value to an index number such that the element
with that index number is represented by a
symbolic name.
maxNumb PositiveInteger 0..1 attr The maximum number of elements that the array
erOfEleme can contain.
nts
Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.3: ApplicationArrayElement

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Class ApplicationCompositeDataType (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note Abstract base class for all application data types composed of other data types.
Base ARElement, ARObject, ApplicationDataType, AtpBlueprint, AtpBlueprintable, Atp
Classifier, AtpType, AutosarDataType, CollectableElement, Identifiable, Multilanguage
Referrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note

Table D.4: ApplicationCompositeDataType

Class ApplicationCompositeElementDataPrototype (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::DataPrototypes
Note This class represents a data prototype which is aggregated within a composite
application data type (record or array). It is introduced to provide a better distinction
between target and context in instanceRefs.
Base ARObject, AtpFeature, AtpPrototype, DataPrototype, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
type ApplicationData 1 tref This represents the corresponding data type.
Type
Stereotypes: isOfType

Table D.5: ApplicationCompositeElementDataPrototype

Class ApplicationDataType (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note ApplicationDataType defines a data type from the application point of view. Especially
it should be used whenever something "physical" is at stake.

An ApplicationDataType represents a set of values as seen in the application model,

such as measurement units. It does not consider implementation details such as
bit-size, endianess, etc.

It should be possible to model the application level aspects of a VFB system by using
ApplicationDataTypes only.
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
AutosarDataType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note

Table D.6: ApplicationDataType

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Class ApplicationError
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note This is a user-defined error that is associated with an element of an AUTOSAR
interface. It is specific for the particular functionality or service provided by the
AUTOSAR software component.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
errorCode Integer 1 attr The RTE generator is forced to assign this value
to the corresponding error symbol. Note that for
error codes certain ranges are predefined (see
RTE specification).

Table D.7: ApplicationError

Class ApplicationPrimitiveDataType
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note A primitive data type defines a set of allowed values.

Tags: atp.recommendedPackage=ApplicationDataTypes
Base ARElement, ARObject, ApplicationDataType, AtpBlueprint, AtpBlueprintable, Atp
Classifier, AtpType, AutosarDataType, CollectableElement, Identifiable, Multilanguage
Referrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note

Table D.8: ApplicationPrimitiveDataType

Class ApplicationRecordDataType
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note An application data type which can be decomposed into prototypes of other
application data types.

Tags: atp.recommendedPackage=ApplicationDataTypes
Base ARElement, ARObject, ApplicationCompositeDataType, ApplicationDataType, Atp
Blueprint, AtpBlueprintable, AtpClassifier, AtpType, AutosarDataType, Collectable
Element, Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
element ApplicationReco 1..* aggr Specifies an element of a record.
(ordered) rdElement
The aggregation of ApplicationRecordElement is
subject to variability with the purpose to support
the conditional existence of elements inside a
ApplicationrecordDataType.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.9: ApplicationRecordDataType

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Class ApplicationRecordElement
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::DataPrototypes
Note Describes the properties of one particular element of an application record data type.
Base ARObject, ApplicationCompositeElementDataPrototype, AtpFeature, AtpPrototype,
DataPrototype, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note

Table D.10: ApplicationRecordElement

Class ApplicationRuleBasedValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note This meta-class represents rule based values for DataPrototypes typed by
ApplicationDataTypes (ApplicationArrayDataType or a compound
ApplicationPrimitiveDataType which also boils down to an array-nature).
Base ARObject, AbstractRuleBasedValueSpecification, ValueSpecification
Attribute Type Mul. Kind Note
category Identifier 1 attr This represents the category of the
RuleBasedValueSpecification

Tags: xml.sequenceOffset=-20
swAxisCon RuleBasedAxis * aggr This represents the axis values of a Compound
t (ordered) Cont Primitive Data Type (curve or map).

The first swAxisCont describes the x-axis, the

second swAxisCont describes the y-axis, the third
swAxisCont describes the z-axis. In addition to
this, the axis can be denoted in swAxisIndex.
swValueC RuleBasedValu 0..1 aggr This represents the values of an array or
ont eCont Compound Primitive Data Type.

Table D.11: ApplicationRuleBasedValueSpecification

Class ApplicationSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note The ApplicationSwComponentType is used to represent the application software.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtomicSwComponentType, AtpBlueprint, AtpBlueprintable,
AtpClassifier, AtpType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable, SwComponentType
Attribute Type Mul. Kind Note

Table D.12: ApplicationSwComponentType

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Class ApplicationValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note This meta-class represents values for DataPrototypes typed by ApplicationDataTypes
(this includes in particular compound primitives).

For further details refer to ASAM CDF 2.0. This meta-class corresponds to some
extent with SW-INSTANCE in ASAM CDF 2.0.
Base ARObject, ValueSpecification
Attribute Type Mul. Kind Note
category Identifier 1 attr Specifies to which category of
ApplicationDataType this
ApplicationValueSpecification can be applied (e.g.
as an initial value), thus imposing constraints on
the structure and semantics of the contained
values, see [constr_1006] and [constr_2051].
swAxisCon SwAxisCont * aggr This represents the axis values of a Compound
t (ordered) Primitive Data Type (curve or map).

The first swAxisCont describes the x-axis, the

second swAxisCont describes the y-axis, the third
swAxisCont describes the z-axis. In addition to
this, the axis can be denoted in swAxisIndex.
swValueC SwValueCont 0..1 aggr This represents the values of a Compound
ont Primitive Data Type.

Table D.13: ApplicationValueSpecification

Class ArgumentDataPrototype
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note An argument of an operation, much like a data element, but also carries direction
information and is owned by a particular ClientServerOperation.
Base ARObject, AtpFeature, AtpPrototype, AutosarDataPrototype, DataPrototype,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
direction ArgumentDirecti 1 attr This attribute specifies the direction of the
onEnum argument prototype.
serverArgu ServerArgument 0..1 attr This defines how the argument type of the servers
mentImplP ImplPolicyEnum RunnableEntity is implemented.
olicy
If the attribute is not defined this has the same
semantics as if the attribute is set to the value
useArgumentType for primitive arguments and
structures and to the value useArrayBaseType for
arrays.

Table D.14: ArgumentDataPrototype

Enumeration ArgumentDirectionEnum
Package M2::AUTOSARTemplates::GenericStructure::GeneralTemplateClasses::Primitive
Types

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Note Use cases:

Arguments in ClientServerOperation can have different directions that need
to be formally indicated because they have an impact on how the function
signature looks like eventually.
Arguments in BswModuleEntry already determine a function signature, but
the direction is used to specify the semantics, especially of pointer
arguments.

Literal Description
in The argument value is passed to the callee.

Tags: atp.EnumerationValue=0
inout The argument value is passed to the callee but also passed back from the callee to
the caller.

Tags: atp.EnumerationValue=1
out The argument value is passed from the callee to the caller.

Tags: atp.EnumerationValue=2

Table D.15: ArgumentDirectionEnum

Enumeration ArraySizeSemanticsEnum
Package M2::AUTOSARTemplates::CommonStructure::ImplementationDataTypes
Note This type controls how the information about the number of elements in an
ApplicationArrayDataType is to be interpreted.
Literal Description
fixedSize This means that the ApplicationArrayDataType will always have a fixed number of
elements.

Tags: atp.EnumerationValue=0
variableSize This implies that the actual number of elements in the ApplicationArrayDataType
might vary at run-time. The value of arraySize represents the maximum number of
elements in the array.

Tags: atp.EnumerationValue=1

Table D.16: ArraySizeSemanticsEnum

Class ArrayValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note Specifies the values for an array.
Base ARObject, CompositeValueSpecification, ValueSpecification
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

element ValueSpecificati 1..* aggr The value for a single array element. All
(ordered) on ValueSpecifications aggregated by
ArrayValueSpecification shall have the same
structure.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.17: ArrayValueSpecification

Class AssemblySwConnector
Package M2::AUTOSARTemplates::SWComponentTemplate::Composition
Note AssemblySwConnectors are exclusively used to connect SwComponentPrototypes in
the context of a CompositionSwComponentType.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable, SwConnector
Attribute Type Mul. Kind Note
provider AbstractProvide 0..1 iref Instance of providing port.
dPortPrototype
requester AbstractRequire 0..1 iref Instance of requiring port.
dPortPrototype

Table D.18: AssemblySwConnector

Class AsynchronousServerCallPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::ServerCall
Note An AsynchronousServerCallPoint is used for asynchronous invocation of a
ClientServerOperation. IMPORTANT: a ServerCallPoint cannot be used concurrently.
Once the client RunnableEntity has made the invocation, the ServerCallPoint cannot
be used until the call returns (or an error occurs!) at which point the ServerCallPoint
becomes available again.
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable, ServerCallPoint
Attribute Type Mul. Kind Note

Table D.19: AsynchronousServerCallPoint

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Class AsynchronousServerCallResultPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::ServerCall
Note If a RunnableEntity owns a AsynchronousServerCallResultPoint it is entitled to get
the result of the referenced AsynchronousServerCallPoint. If it is associated with
AsynchronousServerCallReturnsEvent, this RTEEvent notifies the completion of the
required ClientServerOperation or a timeout. The occurrence of this event can either
unblock a WaitPoint or can lead to the invocation of a RunnableEntity.
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
asynchron AsynchronousS 1 ref The referenced Asynchronous Server Call Point
ousServer erverCallPoint defines the asynchronous server call from which
CallPoint the results are returned.

Table D.20: AsynchronousServerCallResultPoint

Class AsynchronousServerCallReturnsEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This event is raised when an asynchronous server call is finished.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
eventSour AsynchronousS 1 ref The referenced
ce erverCallResult AsynchronousServerCallResultPoint which is
Point raises the RTEEvent in case of returning
asynchronous server call.

Table D.21: AsynchronousServerCallReturnsEvent

Class AtomicSwComponentType (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note An atomic software component is atomic in the sense that it cannot be further
decomposed and distributed across multiple ECUs.
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement,
Referrable, SwComponentType
Attribute Type Mul. Kind Note
internalBe SwcInternalBeh 0..1 aggr The SwcInternalBehaviors owned by an
havior avior AtomicSwComponentType can be located in a
different physical file. Therefore the aggregation is
atpSplitable.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=internalBehavior, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

symbolPro SymbolProps 0..1 aggr This represents the SymbolProps for the
ps AtomicSwComponentType.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName

Table D.22: AtomicSwComponentType

Class atpMixedString AttributeValueVariationPoint (abstract)

Package M2::AUTOSARTemplates::GenericStructure::VariantHandling::AttributeValueVariation
Points
Note This class represents the ability to derive the value of the Attribute from a system
constant (by SwSystemconstDependentFormula). It also provides a bindingTime.
Base ARObject, FormulaExpression, SwSystemconstDependentFormula
Attribute Type Mul. Kind Note
bindingTim BindingTimeEn 0..1 attr This is the binding time in which the attribute value
e um needs to be bound.

If this attribute is missing, the attribute is not a

variation point. In particular this means that It
needs to be a single value according to the type
specified in the pure model. It is an error if it is still
a formula.

Tags: xml.attribute=true
blueprintV String 0..1 attr This represents a description that documents how
alue the value shall be defined when deriving objects
from the blueprint.

Tags: xml.attribute=true
sd String 0..1 attr This special data is provided to allow
synchronization of Attribute value variation points
with variant management systems. The usage is
subject of agreement between the involved
parties.

Tags: xml.attribute=true
shortLabel PrimitiveIdentifi 0..1 attr This allows to identify the variation point. It is also
er intended to allow RTE support for CompileTime
Variation points.

Tags: xml.attribute=true

Table D.23: AttributeValueVariationPoint

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Class AutosarDataPrototype (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::DataPrototypes
Note Base class for prototypical roles of an AutosarDataType.
Base ARObject, AtpFeature, AtpPrototype, DataPrototype, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
type AutosarDataTyp 1 tref This represents the corresponding data type.
e
Stereotypes: isOfType

Table D.24: AutosarDataPrototype

Class AutosarDataType (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note Abstract base class for user defined AUTOSAR data types for ECU software.
Base ARElement, ARObject, AtpClassifier, AtpType, CollectableElement, Identifiable,
MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
swDataDef SwDataDefProp 0..1 aggr The properties of this AutosarDataType.
Props s

Table D.25: AutosarDataType

Class BackgroundEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This event is used to trigger RunnableEntities that are supposed to be executed in the
background.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note

Table D.26: BackgroundEvent

Class BaseType (abstract)

Package M2::MSR::AsamHdo::BaseTypes
Note This abstract meta-class represents the ability to specify a platform dependant base
type.
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
baseType BaseTypeDefini 1 aggr This is the actual definition of the base type.
Definition tion
Tags: xml.roleElement=false; xml.roleWrapper
Element=false; xml.sequenceOffset=20; xml.type
Element=false; xml.typeWrapperElement=false

Table D.27: BaseType

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Class BaseTypeDirectDefinition
Package M2::MSR::AsamHdo::BaseTypes
Note This BaseType is defined directly (as opposite to a derived BaseType)
Base ARObject, BaseTypeDefinition
Attribute Type Mul. Kind Note
baseType BaseTypeEnco 1 attr This specifies, how an object of the current
Encoding dingString BaseType is encoded, e.g. in an ECU within a
message sequence.

Tags: xml.sequenceOffset=90
baseType PositiveInteger 0..1 attr Describes the length of the data type specified in
Size the container in bits.

Tags: xml.sequenceOffset=70
byteOrder ByteOrderEnum 0..1 attr This attribute specifies the byte order of the base
type.

Tags: xml.sequenceOffset=110
maxBaseT PositiveInteger 0..1 attr Describes the maximum length of the BaseType in
ypeSize bits.

Tags: xml.sequenceOffset=80
memAlign PositiveInteger 0..1 attr This attribute describes the alignment of the
ment memory object in bits. E.g. "8" specifies, that the
object in question is aligned to a byte while "32"
specifies that it is aligned four byte. If the value is
set to "0" the meaning shall be interpreted as
"unspecified".

Tags: xml.sequenceOffset=100

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Attribute Type Mul. Kind Note

nativeDecl NativeDeclarati 0..1 attr This attribute describes the declaration of such a
aration onString base type in the native programming language,
primarily in the Programming language C. This
can then be used by a code generator to include
the necessary declarations into a header file. For
example

BaseType with
shortName: "MyUnsignedInt"
nativeDeclaration: "unsigned short"

Results in
typedef unsigned short MyUnsignedInt;

If the attribute is not defined the referring

ImplementationDataTypes will not be generated
as a typedef by RTE.

If a nativeDeclaration type is given it shall fulfill the

characteristic given by basetypeEncoding and
baseTypeSize.

This is required to ensure the consistent handling

and interpretation by software components, RTE,
COM and MCM systems.

Tags: xml.sequenceOffset=120

Table D.28: BaseTypeDirectDefinition

Enumeration BindingTimeEnum
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This enumerator specifies the applicable binding times for the pre build variation
points.
Literal Description
codeGenera-
tionTime
Coding by hand, based on requirements document.
Tool based code generation, e.g. from a model.
The model may contain variants.
Only code for the selected variant(s) is actually generated.

Tags: atp.EnumerationValue=0
linkTime Configure what is included in object code, and what is omitted Based on which
variant(s) are selected E.g. for modules that are delivered as object code (as
opposed to those that are delivered as source code)

Tags: atp.EnumerationValue=1

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preCompile This is typically the C-Preprocessor. Exclude parts of the code from the
Time compilation process, e.g., because they are not required for the selected variant,
because they are incompatible with the selected variant, because they require
resources that are not present in the selected variant. Object code is only
generated for the selected variant(s). The code that is excluded at this stage code
will not be available at later stages.

Tags: atp.EnumerationValue=2
systemDe-
signTime
Designing the VFB.
Software Component types (PortInterfaces).
SWC Prototypes and the Connections between SWCprototypes.
Designing the Topology
ECUs and interconnecting Networks
Designing the Communication Matrix and Data Mapping

Tags: atp.EnumerationValue=3

Table D.29: BindingTimeEnum

Class atpMixedString BooleanValueVariationPoint

Package M2::AUTOSARTemplates::GenericStructure::VariantHandling::AttributeValueVariation
Points
Note This class represents an attribute value variation point for Boolean attributes.

Note that this class might be used in the extended meta-model on

Base ARObject, AttributeValueVariationPoint, FormulaExpression, SwSystemconst
DependentFormula
Attribute Type Mul. Kind Note

Table D.30: BooleanValueVariationPoint

Class BswApiOptions (abstract)

Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note This meta-class represents the ability to define options for the definition of the
signature of function prototypes.
Base ARObject
Attribute Type Mul. Kind Note
enableTak Boolean 0..1 attr If set to true, the BSW Module is able to use the
eAddress API reference for deriving a pointer to an object

Table D.31: BswApiOptions

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Class BswAsynchronousServerCallPoint
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Represents an asynchronous procedure call point via the BSW Scheduler.
Base ARObject, BswModuleCallPoint, Referrable
Attribute Type Mul. Kind Note
calledEntry BswModuleClie 1 ref The entry to be called.
ntServerEntry

Table D.32: BswAsynchronousServerCallPoint

Class BswAsynchronousServerCallResultPoint
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note The callback point for an BswAsynchronousServerCallPoint i.e. the point at which the
result can be retrieved from the BSW Scheduler.
Base ARObject, BswModuleCallPoint, Referrable
Attribute Type Mul. Kind Note
asynchron BswAsynchrono 1 ref The call point invoking the call to which the result
ousServer usServerCallPoi belongs.
CallPoint nt

Table D.33: BswAsynchronousServerCallResultPoint

Class BswBackgroundEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note A recurring BswEvent which is used to perform background activities. It is similar to a
BswTimingEvent but has no fixed time period and is activated only with low priority.
Base ARObject, AbstractEvent, BswEvent, BswScheduleEvent, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note

Table D.34: BswBackgroundEvent

Class BswCalledEntity
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note BSW module entity which is designed to be called from another BSW module or
cluster.
Base ARObject, BswModuleEntity, ExecutableEntity, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note

Table D.35: BswCalledEntity

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Class BswDataReceivedEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note This event is thrown on reception of the referenced data via
Sender-Receiver-Communication over the BSW Scheduler.
Base ARObject, AbstractEvent, BswEvent, BswScheduleEvent, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
data VariableDataPr 1 ref The received data.
ototype

Table D.36: BswDataReceivedEvent

Class BswDataReceptionPolicy (abstract)

Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Specifies the reception policy for the referred data in sender-receiver communication
over the BSW Scheduler. To be used for inter-partition and/or inter-core
communication.
Base ARObject, BswApiOptions
Attribute Type Mul. Kind Note
receivedD VariableDataPr 1 ref The data received over the BSW Scheduler using
ata ototype this policy.

Table D.37: BswDataReceptionPolicy

Class BswEvent (abstract)

Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Base class of various kinds of events which are used to trigger a BswModuleEntity of
this BSW module or cluster. The event is local to the BSW module or cluster. The
short name of the meta-class instance is intended as an input to configure the
required API of the BSW Scheduler.
Base ARObject, AbstractEvent, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
contextLim BswDistinguish * ref The existence of this reference indicates that the
itation edPartition usage of the event is limited to the context of the
referred BswDistinguishedPartitions.
disabledIn ModeDeclaratio * iref The modes, in which this event is disabled.
Mode n
Stereotypes: atpSplitable
Tags: atp.Splitkey=disabledInMode
startsOnEv BswModuleEntit 1 ref The entity which is started by the event.
ent y

Table D.38: BswEvent

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Class BswExclusiveAreaPolicy
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note The ExclusiveArea for which the BSW Scheduler using this policy.
Base ARObject, BswApiOptions
Attribute Type Mul. Kind Note
apiPrincipl ApiPrincipleEnu 0..1 attr Specifies for this ExclusiveArea if either one
e m common set of Enter and Exit APIs for the whole
BSW module is requested from the SchM or if the
set of Enter and Exit APIs is expected per
BswModuleEntity. The default value is "common".
exclusiveA ExclusiveArea 1 ref The ExclusiveArea for which the BSW Scheduler
rea using this policy.

Table D.39: BswExclusiveAreaPolicy

Enumeration BswExecutionContext
Package M2::AUTOSARTemplates::BswModuleTemplate::BswInterfaces
Note Specifies the execution context required or guaranteed for the call associated with
this service.
Literal Description
hook Context of an OS "hook" routine always

Tags: atp.EnumerationValue=0
interruptCat1 CAT1 interrupt context always

Tags: atp.EnumerationValue=1
interruptCat2 CAT2 interrupt context always

Tags: atp.EnumerationValue=2
task Task context always

Tags: atp.EnumerationValue=3
unspecified The execution context is not specified by the API

Tags: atp.EnumerationValue=4

Table D.40: BswExecutionContext

Class BswExternalTriggerOccurredEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note A BswEvent resulting from a trigger released by another module or cluster.
Base ARObject, AbstractEvent, BswEvent, BswScheduleEvent, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
trigger Trigger 1 ref The trigger associated with this event. The trigger
is external to this module.

Table D.41: BswExternalTriggerOccurredEvent

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Class BswImplementation
Package M2::AUTOSARTemplates::BswModuleTemplate::BswImplementation
Note Contains the implementation specific information in addition to the generic
specification (BswModuleDescription and BswBehavior). It is possible to have several
different BswImplementations referring to the same BswBehavior.

Tags: atp.recommendedPackage=BswImplementations
Base ARElement, ARObject, CollectableElement, Identifiable, Implementation,
MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
arRelease RevisionLabelSt 1 attr Version of the AUTOSAR Release on which this
Version ring implementation is based. The numbering contains
three levels (major, minor, revision) which are
defined by AUTOSAR.
behavior BswInternalBeh 1 ref The behavior of this implementation.
avior
This relation is made as an association because
it follows the pattern of the SWCT
since ARElement cannot be splitted, but we
want supply the implementation later, the
BswImplementation is not aggregated in
BswBehavior

preconfigur EcucModuleCo * ref Reference to the set of preconfigured (i.e. fixed)

edConfigur nfigurationValue configuration values for this BswImplementation.
ation s
If the BswImplementation represents a cluster of
several modules, more than one
EcucModuleConfigurationValues element can be
referred (at most one per module), otherwise at
most one such element can be referred.

Tags: xml.roleWrapperElement=true
recommen EcucModuleCo * ref Reference to one or more sets of recommended
dedConfig nfigurationValue configuration values for this module or module
uration s cluster.

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Attribute Type Mul. Kind Note

vendorApiI Identifier 0..1 attr In driver modules which can be instantiated
nfix several times on a single ECU, SRS_BSW_00347
requires that the names of files, APIs, published
parameters and memory allocation keywords are
extended by the vendorId and a vendor specific
name. This parameter is used to specify the
vendor specific name. In total, the implementation
specific API name is generated as follows:
<ModuleName>_<vendorId>_
<vendorApiInfix>_<API name from SWS>.

E.g. assuming that the vendorId of the

implementer is 123 and the implementer chose a
vendorApiInfix of "v11r456" an API name
Can_Write defined in the SWS will translate to
Can_123_v11r456_Write.

This attribute is mandatory for all modules with

upper multiplicity > 1. It shall not be used for
modules with upper multiplicity =1.

See also SWS_BSW_00102.

vendorSpe EcucModuleDef * ref Reference to
cificModule
the vendor specific EcucModuleDef used in
Def
this BswImplementation if it represents a
single module
several EcucModuleDefs used in this
BswImplementation if it represents a cluster
of modules
one or no EcucModuleDefs used in this
BswImplementation if it represents a library

Tags: xml.roleWrapperElement=true

Table D.42: BswImplementation

Class BswInternalBehavior
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Specifies the behavior of a BSW module or a BSW cluster w.r.t. the code entities
visible by the BSW Scheduler. It is possible to have several different
BswInternalBehaviors referring to the same BswModuleDescription.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable, Internal
Behavior, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

arTypedPe VariableDataPr * aggr Defines an AUTOSAR typed memory-block that
rInstanceM ototype needs to be available for each instance of the
emory Basic Software Module. The aggregation of
arTypedPerInstanceMemory is subject to
variability with the purpose to support variability in
the Basic Software Modules implementations.
Typically different algorithms in the implementation
are requiring different number of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
bswPerInst BswPerInstance * aggr arTypedPerInstanceMemory specific policy
anceMemo MemoryPolicy
ryPolicy Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
clientPolicy BswClientPolicy * aggr Stereotypes: atpSplitable; atpVariationTags: atp.
Splitkey=clientPolicy, variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
distinguish BswDistinguish * aggr Indicates an abstract partition context in which the
edPartition edPartition enclosing BswModuleEntity can be executed.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variationPoint.
ShortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=60
entity BswModuleEntit * aggr A code entity for which the behavior is described
y
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=5
event BswEvent * aggr An event required by this module behavior.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=10
exclusiveA BswExclusiveAr * aggr Stereotypes: atpSplitable; atpVariationTags: atp.
reaPolicy eaPolicy Splitkey=exclusiveAreaPolicy, variationPoint.short
Label
vh.latestBindingTime=preCompileTime
includedDa IncludedDataTy * aggr The includedDataTypeSet is used by a basic
taTypeSet peSet software module for its implementation.

Stereotypes: atpSplitable
Tags: atp.Splitkey=includedDataTypeSet

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Attribute Type Mul. Kind Note

internalTrig BswInternalTrig * aggr An internal triggering point.
geringPoin geringPoint
t Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=2
internalTrig BswInternalTrig * aggr Stereotypes: atpSplitable; atpVariationTags: atp.
geringPoin geringPointPolic Splitkey=internalTriggeringPointPolicy, variation
tPolicy y Point.shortPoint
vh.latestBindingTime=preCompileTime
modeRece BswModeRecei * aggr Implementation policy for the reception of mode
iverPolicy verPolicy switches.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=modeReceiverPolicy, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=25
modeSend BswModeSende * aggr Implementation policy for providing a mode group.
erPolicy rPolicy
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=modeSenderPolicy, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=20
parameter BswParameterP * aggr Stereotypes: atpSplitable; atpVariationTags: atp.
Policy olicy Splitkey=parameterPolicy, variatioPoint.shortLabel
vh.latestBindingTime=preCompileTime
perInstanc ParameterData * aggr Describes a read only memory object containing
eParamete Prototype characteristic value(s) needed by this
r BswInternalBehavior. The role name
perInstanceParameter is chosen in analogy to the
similar role in the context of SwcInternalBehavior.

In contrast to constantMemory, this object is not

allocated locally by the modules code, but by the
BSW Scheduler and it is accessed from the BSW
module via the BSW Scheduler API. The main use
case is the support of software emulation of
calibration data.

The aggregation is subject to variability with the

purpose to support implementation variants.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=atp.Splitkey shortName,
variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=45

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Attribute Type Mul. Kind Note

receptionP BswDataRecept * aggr Data reception policy for inter-partition and/or
olicy ionPolicy inter-core communication.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=receptionPolicy, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=55
releasedTri BswReleasedTri * aggr Stereotypes: atpSplitable; atpVariationTags: atp.
ggerPolicy ggerPolicy Splitkey=releasedTriggerPolicy, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
scheduler BswSchedulerN * aggr Optional definition of one or more prefixes to be
NamePrefi amePrefix used for the BswScheduler.
x
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=schedulerNamePrefix,
variationPoint.ShortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=50
sendPolicy BswDataSendP * aggr Stereotypes: atpSplitable; atpVariationTags: atp.
olicy Splitkey=sendPolicy, variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
serviceDep BswServiceDep * aggr Defines the requirements on AUTOSAR Services
endency endency for a particular item.

The aggregation is subject to variability with the

purpose to support the conditional existence of
ServiceNeeds.

The aggregation is splitable in order to support

that ServiceNeeds might be provided in later
development steps.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=serviceDependency, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=40
triggerDire BswTriggerDire * aggr Specifies a trigger to be directly implemented via
ctImpleme ctImplementatio OS calls.
ntation n
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=triggerDirectImplementation,
variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=15
variationPo VariationPointPr * aggr Proxy of a variation points in the C/C++
intProxy oxy implementation.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName

Table D.43: BswInternalBehavior

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Class BswInternalTriggerOccurredEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note A BswEvent, which can happen sporadically. The event is activated by explicit calls
from the module to the BSW Scheduler. The main purpose for such an event is to
cause a context switch, e.g. from an ISR context into a task context. Activation and
switching are handled within the same module or cluster only.
Base ARObject, AbstractEvent, BswEvent, BswScheduleEvent, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
eventSour BswInternalTrig 1 ref The activation point is the source of this event.
ce geringPoint

Table D.44: BswInternalTriggerOccurredEvent

Class BswInternalTriggeringPoint
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Represents the activation point for one or more BswInternalTriggerOccurredEvents.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
swImplPoli SwImplPolicyEn 0..1 attr This attribute, when set to value queued, specifies
cy um a queued processing of the internal trigger event.

Table D.45: BswInternalTriggeringPoint

Class BswInterruptEntity
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note BSW module entity, which is designed to be triggered by an interrupt.
Base ARObject, BswModuleEntity, ExecutableEntity, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note
interruptCa BswInterruptCat 1 attr Category of the interrupt
tegory egory
interruptSo String 1 attr Allows a textual documentation of the intended
urce interrupt source.

Table D.46: BswInterruptEntity

Class BswModeReceiverPolicy
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Specifies the details for the reception of a mode switch for the referred mode group.
Base ARObject
Attribute Type Mul. Kind Note
enhanced Boolean 0..1 attr This controls the creation of the enhanced mode
ModeApi API that returns information about the previous
mode and the next mode. If set to TRUE the
enhanced mode API is supposed to be generated.
For more details please refer to the SWS_RTE.

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Attribute Type Mul. Kind Note

requiredM ModeDeclaratio 1 ref The required mode group for which the policy is
odeGroup nGroupPrototyp specified.
e
supportsAs Boolean 1 attr Specifies whether the module can handle the
ynchronou reception of an asynchronous mode switch (true)
sModeSwit or not (false).
ch

Table D.47: BswModeReceiverPolicy

Class BswModeSenderPolicy
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Specifies the details for the sending of a mode switch for the referred mode group.
Base ARObject
Attribute Type Mul. Kind Note
ackReques BswModeSwitc 0..1 aggr Request for acknowledgement
t hAckRequest
enhanced Boolean 0..1 attr This controls the creation of the enhanced mode
ModeApi API that returns information about the previous
mode and the next mode. If set to TRUE the
enhanced mode API is supposed to be generated.
For more details please refer to the SWS_RTE.
providedM ModeDeclaratio 1 ref The provided mode group for which the policy is
odeGroup nGroupPrototyp specified.
e
queueLeng PositiveInteger 1 attr Length of call queue on the sender side. The
th queue is implemented by the RTE
resp.BswScheduler. The value must be greater or
equal to 0. Setting the value of queueLength to 0
implies non-queued communication.

Table D.48: BswModeSenderPolicy

Class BswModeSwitchAckRequest
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Requests acknowledgements that a mode switch has been processed successfully
Base ARObject
Attribute Type Mul. Kind Note
timeout TimeValue 1 attr Number of seconds before an error is reported.

Table D.49: BswModeSwitchAckRequest

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Class BswModeSwitchEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note A BswEvent resulting from a mode switch.
Base ARObject, AbstractEvent, BswEvent, BswScheduleEvent, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
activation ModeActivation 1 attr Kind of activation w.r.t. to the referred mode.
Kind
mode (or- ModeDeclaratio 1..2 iref Reference to one or two Modes that initiate the
dered) n Mode Switch Event.

Table D.50: BswModeSwitchEvent

Class BswModeSwitchedAckEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note The event is raised after a switch of the referenced mode group has been
acknowledged or an error occurs. The referenced mode group must be provided by
this module.
Base ARObject, AbstractEvent, BswEvent, BswScheduleEvent, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
modeGrou ModeDeclaratio 1 ref A mode group provided by this module. The
p nGroupPrototyp acknowledgement of a switch of this group raises
e this event.

Table D.51: BswModeSwitchedAckEvent

Class BswModuleCallPoint (abstract)

Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Represents a point at which a BswModuleEntity handles a procedure call into a
BswModuleEntry, either directly or via the BSW Scheduler.
Base ARObject, Referrable
Attribute Type Mul. Kind Note
contextLim BswDistinguish * ref The existence of this reference indicates that the
itation edPartition call point is used only in the context of the referred
BswDistinguishedPartitions.

Table D.52: BswModuleCallPoint

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Class BswModuleClientServerEntry
Package M2::AUTOSARTemplates::BswModuleTemplate::BswInterfaces
Note This meta-class represents a single API entry into the BSW module or cluster that
has the ability to be called in client-server fashion via the BSW Scheduler.

In this regard it is more special than BswModuleEntry and can be seen as a wrapper
around the BswModuleEntry to which it refers (property encapsulatedEntry).

Tags: atp.recommendedPackage=BswModuleEntrys
Base ARObject, Referrable
Attribute Type Mul. Kind Note
encapsulat BswModuleEntr 1 ref The underlying BswModuleEntry.
edEntry y
Tags: xml.sequenceOffset=5
isReentran Boolean 0..1 attr Reentrancy from the viewpoint of clients invoking
t the service via the BSW Scheduler:
True: Enables the service to be invoked
again, before the service has finished.
False: It is prohibited to invoke the service
again before is has finished.

Tags: xml.sequenceOffset=10
isSynchron Boolean 0..1 attr Synchronicity from the viewpoint of clients
ous invoking the service via the BSW Scheduler:
True: This calls a synchronous service, i.e.
the service is completed when the call
returns.
False: The service (on semantical level)
may not be complete when the call returns.

Tags: xml.sequenceOffset=15

Table D.53: BswModuleClientServerEntry

Class BswModuleDependency
Package M2::AUTOSARTemplates::BswModuleTemplate::BswInterfaces
Note This class collects the dependencies of a BSW module or cluster on a certain other
BSW module.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

serviceIte ServiceNeeds * aggr A single item (example: Nv block) for which the
m quality of a service is defined.

The aggregation is marked as atpSplitable to

allow for extension during the ECU configuration
process.

This association is deprecated since R4.0.3, since

ServiceNeeds shall be associated with the new
element BswServiceDependency within the
BswInternalBehavior.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName; atp.
Status=removed
xml.sequenceOffset=20
targetMod PositiveInteger 0..1 attr AUTOSAR identifier of the target module of which
uleId the dependencies are defined.

This information is optional, because the target

module may also be identified by
targetModuleRef.

Tags: xml.sequenceOffset=5
targetMod BswModuleDes 0..1 ref Reference to the target module. It is an
uleRef cription atpUriDef because the reference shall be used
to identify the target module without actually
needing the description of that target module.

Stereotypes: atpUriDef; atpVariation

Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=7

Table D.54: BswModuleDependency

Class BswModuleDescription
Package M2::AUTOSARTemplates::BswModuleTemplate::BswOverview
Note Root element for the description of a single BSW module or BSW cluster. In case it
describes a BSW module, the short name of this element equals the name of the
BSW module.

Tags: atp.recommendedPackage=BswModuleDescriptions
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpFeature, Atp
StructureElement, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

bswModul BswModuleDep * aggr Describes the dependency to another BSW
eDepende endency module.
ncy
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=20
bswModul SwComponentD 0..1 aggr This adds a documentation to the BSW module.
eDocumen ocumentation
tation Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=bswModuleDocumentation,
variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=6
expectedE BswModuleEntr * ref Indicates an entry which is required by this
ntry y module. Replacement of outgoingCallback /
requiredEntry.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=expectedEntry, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
implement BswModuleEntr * ref Specifies an entry provided by this module which
edEntry y can be called by other modules. This includes
"main" functions, interrupt routines, and callbacks.
Replacement of providedEntry /
expectedCallback.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=implementedEntry, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
internalBe BswInternalBeh * aggr The various BswInternalBehaviors associated with
havior avior a BswModuleDescription can be distributed over
several physical files. Therefore the aggregation is
atpSplitable.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName
xml.sequenceOffset=65
moduleId PositiveInteger 0..1 attr Refers to the BSW Module Identifier defined by
the AUTOSAR standard. For non-standardized
modules, a proprietary identifier can be optionally
chosen.

Tags: xml.sequenceOffset=5

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Attribute Type Mul. Kind Note

providedCli BswModuleClie * aggr Specifies that this module provides a client server
entServerE ntServerEntry entry which can be called from another parition or
ntry core.This entry is declared locally to this context
and will be connected to the
requiredClientServerEntry of another or the same
module via the configuration of the BSW
Scheduler.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=45
providedD VariableDataPr * aggr Specifies a data prototype provided by this module
ata ototype in order to be read from another partition or
core.The providedData is declared locally to this
context and will be connected to the requiredData
of another or the same module via the
configuration of the BSW Scheduler.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=55
providedM ModeDeclaratio * aggr A set of modes which is owned and provided by
odeGroup nGroupPrototyp this module or cluster. It can be connected to the
e requiredModeGroups of other modules or clusters
via the configuration of the BswScheduler. It can
also be synchronized with modes provided via
ports by an associated
ServiceSwComponentType,
EcuAbstractionSwComponentType or
ComplexDeviceDriverSwComponentType.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=25
releasedTri Trigger * aggr A Trigger released by this module or cluster. It can
gger be connected to the requiredTriggers of other
modules or clusters via the configuration of the
BswScheduler. It can also be synchronized with
Triggers provided via ports by an associated
ServiceSwComponentType,
EcuAbstractionSwComponentType or
ComplexDeviceDriverSwComponentType.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=35

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Attribute Type Mul. Kind Note

requiredCli BswModuleClie * aggr Specifies that this module requires a client server
entServerE ntServerEntry entry which can be implemented on another
ntry parition or core.This entry is declared locally to
this context and will be connected to the
providedClientServerEntry of another or the same
module via the configuration of the BSW
Scheduler.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=50
requiredDa VariableDataPr * aggr Specifies a data prototype required by this module
ta ototype in oder to be provided from another partition or
core.The requiredData is declared locally to this
context and will be connected to the providedData
of another or the same module via the
configuration of the BswScheduler.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=60
requiredM ModeDeclaratio * aggr Specifies that this module or cluster depends on a
odeGroup nGroupPrototyp certain mode group. The requiredModeGroup is
e local to this context and will be connected to the
providedModeGroup of another module or cluster
via the configuration of the BswScheduler.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=30
requiredTri Trigger * aggr Specifies that this module or cluster reacts upon
gger an external trigger.This requiredTrigger is declared
locally to this context and will be connected to the
providedTrigger of another module or cluster via
the configuration of the BswScheduler.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=40

Table D.55: BswModuleDescription

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Class BswModuleEntity (abstract)

Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Specifies the smallest code fragment which can be described for a BSW module or
cluster within AUTOSAR.
Base ARObject, ExecutableEntity, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
accessed ModeDeclaratio * ref A mode group which is accessed via API call by
ModeGrou nGroupPrototyp this entity. It must be a
p e ModeDeclarationGroupPrototype required by this
module or cluster.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
activationP BswInternalTrig * ref Activation point used by the module entity to
oint geringPoint activate one or more internal triggers.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
callPoint BswModuleCall * aggr A call point used in the code of this entitiy.
Point
The variablity of this association is especially
targeted at debug scenarios: It is possible to have
one variant calling into the AUTOSAR debug
module and another one which doesnt.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
calledEntry BswModuleEntr * ref The entry of another (or the same) BSW module
y which is called by this entry (usually via C function
call). This information allows to set up a model of
call chains.

The variablity of this association is especially

targeted at debug scenarios: It is possible to have
one variant calling into the AUTOSAR debug
module and another one which doesnt.

Note that this relation has been merked as

obsolete, since the more powerful definition of a
callPoint should be used.

Stereotypes: atpVariation
Tags: atp.Status=removed
vh.latestBindingTime=preCompileTime
dataReceiv BswVariableAcc * aggr The data is received via the BSW Scheduler.
ePoint ess
Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
dataSendP BswVariableAcc * aggr The data is sent via the BSW Scheduler.
oint ess
Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

implement BswModuleEntr 1 ref The entry which is implemented by this module
edEntry y entity.
issuedTrig Trigger * ref A trigger issued by this entity via BSW Scheduler
ger API call. It must be a BswTrigger released (i.e.
owned) by this module or cluster.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
managedM ModeDeclaratio * ref A mode group which is managed by this entity. It
odeGroup nGroupPrototyp must be a ModeDeclarationGroupPrototype
e provided by this module or cluster.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
scheduler BswSchedulerN 0..1 ref A prefix to be used in generated names for the
NamePrefi amePrefix BswModuleScheduler in the context of this
x BswModuleEntity, for example entry point
prototypes, macros for dealing with exclusive
areas, header file names.

Details are defined in the SWS RTE.

The prefix supersedes default rules for the prefix

of those names.

Table D.56: BswModuleEntity

Class BswModuleEntry
Package M2::AUTOSARTemplates::BswModuleTemplate::BswInterfaces
Note This class represents a single API entry (C-function prototype) into the BSW module
or cluster.

The name of the C-function is equal to the short name of this element with one
exception: In case of multiple instances of a module on the same CPU, special rules
for "infixes" apply, see description of class BswImplementation.

Tags: atp.recommendedPackage=BswModuleEntrys
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, CollectableElement,
Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
argument SwServiceArg * aggr An argument belonging to this BswModuleEntry.
(ordered)
Stereotypes: atpVariation
Tags: vh.latestBindingTime=blueprintDerivation
Time
xml.sequenceOffset=45
bswEntryKi BswEntryKindE 0..1 attr This describes whether the entry is concrete or
nd num abstract. If the attribute is missing the entry is
considered as concrete.

Tags: xml.sequenceOffset=40

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Attribute Type Mul. Kind Note

callType BswCallType 1 attr The type of call associated with this service.

Tags: xml.sequenceOffset=25
executionC BswExecutionC 1 attr Specifies the execution context which is required
ontext ontext (in case of entries into this module) or guaranteed
(in case of entries called from this module) for this
service.

Tags: xml.sequenceOffset=30
functionPr NameToken 0..1 attr This attribute is used to control the generation of
ototypeEmi function prototypes. If set to "RTE", the RTE
tter generates the function prototypes in the Module
Interlink Header File.
isReentran Boolean 1 attr Reentrancy from the viewpoint of function callers:
t
True: Enables the service to be invoked
again, before the service has finished.
False: It is prohibited to invoke the service
again before is has finished.

Tags: xml.sequenceOffset=15
isSynchron Boolean 1 attr Synchronicity from the viewpoint of function
ous callers:
True: This calls a synchronous service, i.e.
the service is completed when the call
returns.
False: The service (on semantical level)
may not be complete when the call returns.

Tags: xml.sequenceOffset=20
returnType SwServiceArg 0..1 aggr The return type belonging to this bswModuleEntry.

Tags: xml.sequenceOffset=40
role Identifier 0..1 attr Specifies the role of the entry in the given context.
It shall be equal to the standardized name of the
service call, especially in cases where no
ServiceIdentifier is specified, e.g. for callbacks.
Note that the ShortName is not always sufficient
because it maybe vendor specific (e.g. for
callbacks which can have more than one
instance).

Tags: xml.sequenceOffset=10
serviceId PositiveInteger 0..1 attr Refers to the service identifier of the Standardized
Interfaces of AUTOSAR basic software. For
non-standardized interfaces, it can optionally be
used for proprietary identification.

Tags: xml.sequenceOffset=5

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Attribute Type Mul. Kind Note

swServiceI SwServiceImplP 1 attr Denotes the implementation policy as a standard
mplPolicy olicyEnum function call, inline function or macro. This has to
be specified on interface level because it
determines the signature of the call.

Tags: xml.sequenceOffset=35

Table D.57: BswModuleEntry

Class BswOperationInvokedEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note This event is thrown on operation invocation in Client-Server-Communication via the
BSW Scheduler. Its "entry" reference provides the BswClientServerEntry that is
called subsequently.

Note this event is not needed in case of direct function calls.

Base ARObject, AbstractEvent, BswEvent, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note
entry BswModuleClie 1 ref The providedClientServerEntry invoked by this
ntServerEntry event.

Table D.58: BswOperationInvokedEvent

Class BswQueuedDataReceptionPolicy
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Reception policy attributes specific for queued receiving.
Base ARObject, BswApiOptions, BswDataReceptionPolicy
Attribute Type Mul. Kind Note
queueLeng PositiveInteger 1 attr Length of queue for received events.
th

Table D.59: BswQueuedDataReceptionPolicy

Class BswSchedulableEntity
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note BSW module entity, which is designed for control by the BSW Scheduler. It may for
example implement a so-called "main" function.
Base ARObject, BswModuleEntity, ExecutableEntity, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note

Table D.60: BswSchedulableEntity

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Class BswScheduleEvent (abstract)

Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note BswEvent that is able to start a BswSchedulabeEntity.
Base ARObject, AbstractEvent, BswEvent, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note

Table D.61: BswScheduleEvent

Class BswSchedulerNamePrefix
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note A prefix to be used in names of generated code artifacts which make up the interface
of a BSW module to the BswScheduler.
Base ARObject, ImplementationProps, Referrable
Attribute Type Mul. Kind Note

Table D.62: BswSchedulerNamePrefix

Class BswSynchronousServerCallPoint
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Represents a synchronous procedure call point via the BSW Scheduler.
Base ARObject, BswModuleCallPoint, Referrable
Attribute Type Mul. Kind Note
calledEntry BswModuleClie 1 ref The entry to be called.
ntServerEntry
calledFrom ExclusiveAreaN 0..1 ref This indicates that the call point is located at the
WithinExcl estingOrder deepest level inside one or more ExclusiveAreas
usiveArea that are nested in the given order.

Table D.63: BswSynchronousServerCallPoint

Class BswTimingEvent
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note A recurring BswEvent driven by a time period.
Base ARObject, AbstractEvent, BswEvent, BswScheduleEvent, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
period TimeValue 1 attr Requirement for the time period (in seconds) by
which this event is triggered.

Table D.64: BswTimingEvent

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Class BswTriggerDirectImplementation
Package M2::AUTOSARTemplates::BswModuleTemplate::BswBehavior
Note Specifies a released trigger to be directly implemented via OS calls, for example in a
Complex Driver module.
Base ARObject
Attribute Type Mul. Kind Note
masteredT Trigger 1 ref The trigger which is directly mastered by this
rigger module.

There may be several different

BswTriggerDirectImplementations mastering the
same Trigger. This may be required e.g. due to
memory partitioning.
task Identifier 1 attr The name of the OS task, which is controlled by
the referred trigger. This means, that the module
uses the trigger condition to directly activate an
OS task instead of calling an API of the
BswScheduler. The task name is required by the
RTE generator resp. BswScheduler to raise the
appropriate events in components or modules
receiving the trigger.

Table D.65: BswTriggerDirectImplementation

Class BufferProperties
Package M2::AUTOSARTemplates::SystemTemplate::Transformer
Note Configuration of the buffer properties the transformer needs to work.
Base ARObject
Attribute Type Mul. Kind Note
bufferCom CompuScale 0..1 aggr If the transformer changes the size of the data, the
putation CompuScale can be used to specify a rule to
derive the size of the output data based on the
size of the input data.
headerLen Integer 1 attr Defines the length of the header (in bits) this
gth transformer will add in front of the data.
inPlace Boolean 1 attr If set, the transformer uses the input buffer as
output buffer.

Table D.66: BufferProperties

Enumeration CSTransformerErrorReactionEnum
Package M2::AUTOSARTemplates::SystemTemplate::Transformer
Note Possible kinds of error reaction in case of a hard transformer error.
Literal Description
application The application is responsible for any error reaction. No autonomous error reaction
Only of RTE and transformer.

Tags: atp.EnumerationValue=0

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autonomous RTE and Transformer coordinate an autonomous error reaction on their own.

Tags: atp.EnumerationValue=1

Table D.67: CSTransformerErrorReactionEnum

Class CalibrationParameterValue
Package M2::AUTOSARTemplates::SWComponentTemplate::MeasurementAndCalibration::
CalibrationParameterValues
Note Specifies instance specific calibration parameter values used to initialize the memory
objects implementing calibration parameters in the generated RTE code.

RTE generator will use the implInitValue to override the initial values specified for the
DataPrototypes of a component type.

The applInitValue is used to exchange init values with the component vendor not
publishing the transformation algorithm between ApplicationDataTypes and
ImplementationDataTypes or defining a instance specific initialization of components
which are only defined with ApplicationDataTypes.

Note: If both representations of init values are available these need to represent the
same content.

Note further that in this case an explicit mapping of ValueSpecification is not

implemented because calibration parameters are delivered back after the calibration
phase.
Base ARObject
Attribute Type Mul. Kind Note
applInitVal ValueSpecificati 0..1 aggr This is the initial value specification structured
ue on according to the ApplicationDataType
implInitVal ValueSpecificati 0..1 aggr This is the initial value specification structured
ue on according to the ImplementationDataType
initializedP FlatInstanceDes 1 ref This represents the parameter that is initialized by
arameter criptor the CalibrationParameterValue.

Table D.68: CalibrationParameterValue

Class ClientIdDefinition
Package M2::AUTOSARTemplates::SystemTemplate
Note Several clients in one client-ECU can communicate via inter-ECU client-server
communication with a server on a different ECU, if a client identifier is used to
distinguish the different clients. The Client Identifier of the transaction handle that is
used by the RTE can be defined by this element.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
clientId Numerical 1 attr The Client Identifier of the transaction handle used
for a inter-ECU client server communication is
defined by this attribute. If defined the RTE
generator shall use this clientId.

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Attribute Type Mul. Kind Note

clientServe ClientServerOp 1 iref Reference to the ClientServerOperation that is
rOperation eration called by the client.

Table D.69: ClientIdDefinition

Class ClientServerApplicationErrorMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note This meta-class represents the ability to map ApplicationErrors onto each other.
Base ARObject
Attribute Type Mul. Kind Note
firstApplica ApplicationError 1 ref This represents the first ApplicationError in the
tionError context of the
ClientServerApplicationErrorMapping.
secondApp ApplicationError 1 ref This represents the second ApplicationError in the
licationErro context of the
r ClientServerApplicationErrorMapping.

Table D.70: ClientServerApplicationErrorMapping

Class ClientServerInterface
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note A client/server interface declares a number of operations that can be invoked on a
server by a client.

Tags: atp.recommendedPackage=PortInterfaces
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement, Port
Interface, Referrable
Attribute Type Mul. Kind Note
operation ClientServerOp 1..* aggr ClientServerOperation(s) of this
eration ClientServerInterface.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=blueprintDerivation
Time
possibleErr ApplicationError * aggr Application errors that are defined as part of this
or interface.

Table D.71: ClientServerInterface

Class ClientServerInterfaceMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Defines the mapping of ClientServerOperations in context of two different
ClientServerInterfaces.
Base ARObject, AtpBlueprint, AtpBlueprintable, Identifiable, MultilanguageReferrable, Port
InterfaceMapping, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

errorMappi ClientServerApp * aggr Map two different ApplicationErrors defined in the
ng licationErrorMap context of two different ClientServerInterfaces.
ping
operationM ClientServerOp 1..* aggr Mapping of two ClientServerOperations in two
apping erationMapping different ClientServerInterfaces

Table D.72: ClientServerInterfaceMapping

Class ClientServerOperation
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note An operation declared within the scope of a client/server interface.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
argument ArgumentDataP * aggr An argument of this ClientServerOperation
(ordered) rototype
Stereotypes: atpVariation
Tags: vh.latestBindingTime=blueprintDerivation
Time
possibleErr ApplicationError * ref Possible errors that may by raised by the referring
or operation.

Table D.73: ClientServerOperation

Class ClientServerToSignalMapping
Package M2::AUTOSARTemplates::SystemTemplate::DataMapping
Note This element maps the ClientServerOperation to call- and return-SystemSignals.
Base ARObject, DataMapping
Attribute Type Mul. Kind Note
callSignal SystemSignal 1 ref Reference to the callSignal to which the IN and
INOUT ArgumentDataPrototypes are mapped.
clientServe ClientServerOp 1 iref Reference to a ClientServerOperation, which is
rOperation eration mapped to a call SystemSignal and a return
SystemSignal.
returnSign SystemSignal 0..1 ref Reference to the returnSignal to which the OUT
al and INOUT ArgumentDataPrototypes are
mapped.

Tags: atp.Status=shallBecomeMandatory

Table D.74: ClientServerToSignalMapping

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Class ComplexDeviceDriverSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note The ComplexDeviceDriverSwComponentType is a special AtomicSwComponentType
that has direct access to hardware on an ECU and which is therefore linked to a
specific ECU or specific hardware. The ComplexDeviceDriverSwComponentType
introduces the possibility to link from the software representation to its hardware
description provided by the ECU Resource Template.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtomicSwComponentType, AtpBlueprint, AtpBlueprintable,
AtpClassifier, AtpType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable, SwComponentType
Attribute Type Mul. Kind Note
hardwareE HwDescriptionE * ref Reference from the
lement ntity ComplexDeviceDriverSwComponentType to the
description of the used HwElements.

Table D.75: ComplexDeviceDriverSwComponentType

Class CompositionSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Composition
Note A CompositionSwComponentType aggregates SwComponentPrototypes (that in turn
are typed by SwComponentTypes) as well as SwConnectors for primarily connecting
SwComponentPrototypes among each others and towards the surface of the
CompositionSwComponentType. By this means hierarchical structures of
software-components can be created.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement,
Referrable, SwComponentType
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

component SwComponentP * aggr The instantiated components that are part of this
rototype composition. The aggregation of
SwComponentPrototype is subject to variability
with the purpose to support the conditional
existence of a SwComponentPrototype. Please be
aware: if the conditional existence of
SwComponentPrototypes is resolved post-build
the deselected SwComponentPrototypes are still
contained in the ECUs build but the instances are
inactive in in that they are not scheduled by the
RTE.

The aggregation is marked as atpSplitable in order

to allow the addition of service components to the
ECU extract during the ECU integration.

The use case for having 0 components owned by

the CompositionSwComponentType could be to
deliver an empty CompositionSwComponentType
to e.g. a supplier for filling the internal structure.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=postBuild
connector SwConnector * aggr SwConnectors have the principal ability to
establish a connection among PortPrototypes.
They can have many roles in the context of a
CompositionSwComponentType. Details are
refined by subclasses.

The aggregation of SwConnectors is subject to

variability with the purpose to support variant data
flow.

The aggregation is marked as atpSplitable in order

to allow the extension of the ECU extract with
AssemblySwConnectors between
ApplicationSwComponentTypes and
ServiceSwComponentTypes during the ECU
integration.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=postBuild
constantVa ConstantSpecifi * ref Reference to the ConstantSpecificationMapping to
lueMappin cationMappingS be applied for initValues of PPortComSpecs and
g et RPortComSpec.

Stereotypes: atpSplitable
Tags: atp.Splitkey=constantValueMapping

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Attribute Type Mul. Kind Note

dataTypeM DataTypeMappi * ref Reference to the DataTypeMapping to be applied
apping ngSet for the used ApplicationDataTypes in
PortInterfaces.

Background: when developing subsystems it may

happen that ApplicationDataTypes are used on
the surface of CompositionSwComponentTypes.
In this case it would be reasonable to be able to
also provide the intended mapping to the
ImplementationDataTypes. However, this mapping
shall be informal and not technically binding for
the implementers mainly because the RTE
generator is not concerned about the
CompositionSwComponentTypes.

Rationale: if the mapping of ApplicationDataTypes

on the delegated and inner PortPrototype matches
then the mapping to ImplementationDataTypes is
not impacting compatibility.

Stereotypes: atpSplitable
Tags: atp.Splitkey=dataTypeMapping
instantiatio InstantiationRT * aggr This allows to define instantiation specific
nRTEEven EEventProps properties for RTE Events, in particular for
tProps instance specific scheduling.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortLabel, variation
Point.shortLabel
vh.latestBindingTime=codeGenerationTime

Table D.76: CompositionSwComponentType

Class CompuConst
Package M2::MSR::AsamHdo::ComputationMethod
Note This meta-class represents the fact that the value of a computation method scale is
constant.
Base ARObject
Attribute Type Mul. Kind Note
compuCon CompuConstCo 1 aggr This is the actual content of the constant compu
stContentT ntent method scale.
ype
Tags: xml.roleElement=false; xml.roleWrapper
Element=false; xml.sequenceOffset=10; xml.type
Element=false; xml.typeWrapperElement=false

Table D.77: CompuConst

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Class CompuMethod
Package M2::MSR::AsamHdo::ComputationMethod
Note This meta-class represents the ability to express the relationship between a physical
value and the mathematical representation.

Note that this is still independent of the technical implementation in data types. It only
specifies the formula how the internal value corresponds to its physical pendant.

Tags: atp.recommendedPackage=CompuMethods
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, CollectableElement,
Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
compuInter Compu 0..1 aggr This specifies the computation from internal
nalToPhys values to physical values.

Tags: xml.sequenceOffset=80
compuPhy Compu 0..1 aggr This represents the computation from physical
sToInternal values to the internal values.

Tags: xml.sequenceOffset=90
displayFor DisplayFormatS 0..1 attr This property specifies, how the physical value
mat tring shall be displayed e.g. in documents or
measurement and calibration tools.

Tags: xml.sequenceOffset=20
unit Unit 0..1 ref This is the physical unit of the Physical values for
which the CompuMethod applies.

Tags: xml.sequenceOffset=30

Table D.78: CompuMethod

Class CompuNominatorDenominator
Package M2::MSR::AsamHdo::ComputationMethod
Note This class represents the ability to express a polynomial either as Nominator or as
Denominator.
Base ARObject
Attribute Type Mul. Kind Note
v (ordered) Numerical * attr this is the list of polynomial factors. Note that the
first vf represents the power=0. The polynomial is
v[0] * x 0 + v[1] * x 1 ...

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.roleElement=true; xml.roleWrapper
Element=false; xml.sequenceOffset=20; xml.type
Element=false; xml.typeWrapperElement=false

Table D.79: CompuNominatorDenominator

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Class CompuRationalCoeffs
Package M2::MSR::AsamHdo::ComputationMethod
Note This meta-class represents the ability to express a rational function by specifying the
coefficients of nominator and denominator.
Base ARObject
Attribute Type Mul. Kind Note
compuDen CompuNominat 1 aggr This is the denominator of the expression.
ominator orDenominator
Tags: xml.sequenceOffset=30
compuNu CompuNominat 1 aggr This is the numerator of the rational expression.
merator orDenominator
Tags: xml.sequenceOffset=20

Table D.80: CompuRationalCoeffs

Class CompuScale
Package M2::MSR::AsamHdo::ComputationMethod
Note This meta-class represents the ability to specify one segment of a segmented
computation method.
Base ARObject
Attribute Type Mul. Kind Note
desc MultiLanguage 0..1 aggr <desc> represents a general but brief description
OverviewParagr of the object in question.
aph
Tags: xml.sequenceOffset=30
compuInve CompuConst 0..1 aggr This is the inverse value of the constraint. This
rseValue supports the case that the scale is not reversible
per se.

Tags: xml.sequenceOffset=60
compuScal CompuScaleCo 0..1 aggr This represents the computation details of the
eContents ntents scale.

Tags: xml.roleElement=false; xml.roleWrapper

Element=false; xml.sequenceOffset=70; xml.type
Element=false; xml.typeWrapperElement=false
lowerLimit Limit 0..1 attr This specifies the lower limit of the scale.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=40

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Attribute Type Mul. Kind Note

mask PositiveInteger 0..1 attr In difference to all the other computational
methods every COMPU-SCALE will be applied
including the bit MASK. Therefore it is allowed for
this type of COMPU-METHOD, that
COMPU-SCALES overlap.

To calculate the string reverse to a value, the

string has to be split and the according value for
each substring has to be summed up. The sum is
finally transmitted.

The processing has to be done in order of the

COMPU-SCALE elements.

Tags: xml.sequenceOffset=35
shortLabel Identifier 0..1 attr This element specifies a short name for the
particular scale. The name can for example be
used to derive a programming language identifier.

Tags: xml.sequenceOffset=20
symbol CIdentifier 0..1 attr The symbol, if provided, is used by code
generators to get a C identifier for the
CompuScale. The name will be used as is for the
code generation, therefore it needs to be unique
within the generation context.

Tags: xml.sequenceOffset=25
upperLimit Limit 0..1 attr This specifies the upper limit of a of the scale.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=50

Table D.81: CompuScale

Class CompuScaleConstantContents
Package M2::MSR::AsamHdo::ComputationMethod
Note This meta-class represents the fact that a particular scale of the computation method
is constant.
Base ARObject, CompuScaleContents
Attribute Type Mul. Kind Note
compuCon CompuConst 1 aggr This represents the fact that the scale is a
st constant. The use case is mainly a non
interplolated scale. It is a simplification of the fact
that a constant scale can also be expressed as
Rational Function of oder 0.

Tags: xml.sequenceOffset=90

Table D.82: CompuScaleConstantContents

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Class CompuScales
Package M2::MSR::AsamHdo::ComputationMethod
Note This meta-class represents the ability to stepwise express a computation method.
Base ARObject, CompuContent
Attribute Type Mul. Kind Note
compuScal CompuScale * aggr This represents one scale within the compu
e (ordered) method. Note that it contains a Variationpoint in
order to support blueprints of enumerations.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=blueprintDerivation
Time
xml.roleElement=true; xml.roleWrapper
Element=true; xml.sequenceOffset=40; xml.type
Element=false; xml.typeWrapperElement=false

Table D.83: CompuScales

Class atpMixedString ConditionByFormula

Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This class represents a condition which is computed based on system constants
according to the specified expression. The expected result is considered as boolean
value.

The result of the expression is interpreted as a condition.

"0" represents "false";
a value other than zero is considered "true"

Base ARObject, FormulaExpression, SwSystemconstDependentFormula

Attribute Type Mul. Kind Note
bindingTim BindingTimeEn 1 attr This attribute specifies the point in time when
e um condition may be evaluated at earliest. At this
point in time all referenced system constants shall
have a value.

Tags: xml.attribute=true

Table D.84: ConditionByFormula

Class ConsistencyNeeds
Package M2::AUTOSARTemplates::SWComponentTemplate::ImplicitCommunicationBehavior
Note This meta-class represents the ability to define requirements on the implicit
communication behavior.
Base ARObject, AtpBlueprint, AtpBlueprintable, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

dpgDoesN DataPrototypeG * aggr This group of VariableDataPrototypes does not
otRequire roup require coherency with respect to the implicit
Coherency communication behavior.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
dpgRequir DataPrototypeG * aggr This group of VariableDataPrototypes requires
esCoheren roup coherency with respect to the implicit
cy communication behavior, i.e. all read and write
access to VariableDataPrototypes in the
DataPrototypeGroup by the RunnableEntitys of
the RunnableEntityGroup need to be handled in a
coherent manner.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
regDoesN RunnableEntity * aggr This group of RunnableEntities does not require
otRequireS Group stability with respect to the implicit communication
tability behavior.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
regRequire RunnableEntity * aggr This group of RunnableEntities requires stability
sStability Group with respect to the implicit communication
behavior, i.e. all read and write access to
VariableDataPrototypes in the
DataPrototypeGroup by the RunnableEntitys of
the RunnableEntityGroup need to be handled in a
stable manner.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

Table D.85: ConsistencyNeeds

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Class ConstantSpecificationMapping
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note This meta-class is used to create an association of two ConstantSpecifications. One
ConstantSpecification is supposed to be defined in the application domain while the
other should be defined in the implementation domain.

Hence the ConstantSpecificationMapping needs to be used where a

ConstantSpecification defined in one domain needs to be associated to a
ConstantSpecification in the other domain.

This information is crucial for the RTE generator.

Base ARObject
Attribute Type Mul. Kind Note
applConst ConstantSpecifi 1 ref A ConstantSpecification defined in the application
ant cation domain.
implConsta ConstantSpecifi 1 ref A ConstantSpecification defined in the
nt cation implementation domain.

Table D.86: ConstantSpecificationMapping

Class DataConstr
Package M2::MSR::AsamHdo::Constraints::GlobalConstraints
Note This meta-class represents the ability to specify constraints on data.

Tags: atp.recommendedPackage=DataConstrs
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, CollectableElement,
Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
dataConstr DataConstrRule * aggr This is one particular rule within the data
Rule constraints.

Tags: xml.roleElement=true; xml.roleWrapper

Element=true; xml.sequenceOffset=30; xml.type
Element=false; xml.typeWrapperElement=false

Table D.87: DataConstr

Class DataMapping (abstract)

Package M2::AUTOSARTemplates::SystemTemplate::DataMapping
Note Mapping of port elements (data elements and parameters) to frames and signals.
Base ARObject
Attribute Type Mul. Kind Note
communic Communication 0..1 attr This attribute controls the direction into which the
ationDirecti DirectionType mapped SystemSignal is communicated with
on respect to the kind of PortPrototype used as the
context element of the DataMapping.
eventGrou ConsumedEven * ref Via this reference a connection between the VFB
p tGroup View and the Ethernet EventGroups can be
created.

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Attribute Type Mul. Kind Note

eventHand EventHandler * ref Via this reference a connection between the VFB
ler View and the Ethernet EventHandlers can be
created.
introductio Documentation 0..1 aggr This represents introductory documentation about
n Block the data mapping.
serviceInst AbstractServiceI * ref Via this reference a connection between the VFB
ance nstance View and the Ethernet Services can be created.

Table D.88: DataMapping

Class DataPrototype (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::DataPrototypes
Note Base class for prototypical roles of any data type.
Base ARObject, AtpFeature, AtpPrototype, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note
swDataDef SwDataDefProp 0..1 aggr This property allows to specify data definition
Props s properties which apply on data prototype level.

Table D.89: DataPrototype

Class DataPrototypeGroup
Package M2::AUTOSARTemplates::SWComponentTemplate::ImplicitCommunicationBehavior
Note This meta-class represents the ability to define a collection of DataPrototypes that are
subject to the formal definition of implicit communication behavior. The definition of
the collection can be nested.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
dataProtot DataPrototypeG * iref This represents the ability to define nested groups
ypeGroup roup of VariableDataPrototypes.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
implicitDat VariableDataPr * iref This represents a collection of
aAccess ototype VariableDataPrototypes that belong to the
enclosing DataPrototypeGroup

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.90: DataPrototypeGroup

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Class DataPrototypeMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Defines the mapping of two particular VariableDataPrototypes,
ParameterDataPrototypes or ArgumentDataPrototypes with unequal names and/or
unequal semantic (resolution or range) in context of two different
SenderReceiverInterface, NvDataInterface or ParameterInterface or Operations.

If the semantic is unequal following rules apply: The textTableMapping is only

applicable if the referred DataPrototypes are typed by AutosarDataType referring to
CompuMethods of category TEXTTABLE, SCALE_LINEAR_AND_TEXTTABLE or
BITFIELD_TEXTTABLE.

In the case that the DataPrototypes are typed by AutosarDataType either referring to
CompuMethods of category LINEAR, IDENTICAL or referring to no CompuMethod
(which is similar as IDENTICAL) the linear conversion factor is calculated out of the
factorSiToUnit and offsetSiToUnit attributes of the referred Units and the
CompuRationalCoeffs of a compuInternalToPhys of the referred CompuMethods.
Base ARObject
Attribute Type Mul. Kind Note
firstDataPr AutosarDataPro 1 ref First to be mapped DataPrototype in context of a
ototype totype SenderReceiverInterface, NvDataInterface,
ParameterInterface or Operation.
firstToSec DataTransforma 0..1 ref This defines the need to execute the
ondDataTr tion DataTransformation <Mip>_<transformerId>
ansformati functions of the transformation chain when
on communicating from the
DataPrototypeMapping.firstDataPrototype to the
DataPrototypeMapping.secondDataPrototype.
And to execute the DataTransformation
<Mip>_Inv_<transformerId> functions of the
transformation chain when communicating from
the DataPrototypeMapping.secondDataPrototype
to the DataPrototypeMapping.firstDataPrototype.
secondDat AutosarDataPro 1 ref Second to be mapped DataPrototype in context of
aPrototype totype a SenderReceiverInterface, NvDataInterface,
ParameterInterface or Operation.
subElemen SubElementMa * aggr This represents the owned SubelementMapping.
tMapping pping
textTableM TextTableMappi 0..2 aggr Applied TextTableMapping(s)
apping ng

Table D.91: DataPrototypeMapping

Class DataPrototypeTransformationProps
Package M2::AUTOSARTemplates::SystemTemplate::Transformer
Note DataPrototypeTransformationProps allows to set the attributes for the different
TransformationTechnologies that are DataPrototype specific.
Base ARObject
Attribute Type Mul. Kind Note
dataProtot DataPrototypeIn 0..1 aggr Reference to a DataPrototype that is transported
ypeRef SystemRef in the serialized ISignal.

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Attribute Type Mul. Kind Note

networkRe SwDataDefProp 0..1 aggr Specification of the actual network representation
presentatio s for the referenced primitive DataPrototype. If a
nProps network representation is provided then the
baseType shall be used by the Transformer as
input for the serialization/deserilaization.
transforma Transformation 0..1 ref Collection of AutosarDataPrototype related
tionProps Props configuration settings for a transformer.

Table D.92: DataPrototypeTransformationProps

Class DataReceiveErrorEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This event is raised by the RTE when the Com layer detects and notifies an error
concerning the reception of the referenced data element.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
data VariableDataPr 0..1 iref Data element referenced by event
ototype

Table D.93: DataReceiveErrorEvent

Class DataReceivedEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note The event is raised when the referenced data elements are received.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
data VariableDataPr 0..1 iref Data element referenced by event
ototype

Table D.94: DataReceivedEvent

Class DataSendCompletedEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note The event is raised when the referenced data elements have been sent or an error
occurs.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
eventSour VariableAccess 1 ref The variable access that triggers the event.
ce

Table D.95: DataSendCompletedEvent

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Class DataTransformation
Package M2::AUTOSARTemplates::SystemTemplate::Transformer
Note A DataTransformation represents a transformer chain. It is an ordered list of
transformers.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
dataTransf DataTransforma 0..1 attr This attribute controls the kind of
ormationKi tionKindEnum DataTransformation to be applied.
nd
executeDe Boolean 1 attr Specifies whether the transformer chain is
spiteDataU executed even if no input data are available.
navailabilit
y
transform Transformation 1..* ref This attribute represents the definition of a chain
erChain Technology of transformers that are supposed to be executed
(ordered) according to the order of being referenced from
DataTransformation.

Table D.96: DataTransformation

Enumeration DataTransformationErrorHandlingEnum
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::PortAPI
Options
Note This enumeration defines different ways how runnables shall handle transformer
errors.
Literal Description
noTrans- A runnable does not handle transformer errors.
formerError
Handling Tags: atp.EnumerationValue=0
transformer The runnable implements the handling of transformer errors.
ErrorHan-
dling Tags: atp.EnumerationValue=1

Table D.97: DataTransformationErrorHandlingEnum

Class DataTypeMap
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note This class represents the relationship between ApplicationDataType and its
implementing ImplementationDataType.
Base ARObject
Attribute Type Mul. Kind Note
application ApplicationData 1 ref This is the corresponding ApplicationDataType
DataType Type
implement Implementation 1 ref This is the corresponding
ationDataT DataType ImplementationDataType.
ype

Table D.98: DataTypeMap

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Class DataTypeMappingSet
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::Datatypes
Note This class represents a list of mappings between ApplicationDataTypes and
ImplementationDataTypes. In addition, it can contain mappings between
ImplementationDataTypes and ModeDeclarationGroups.

Tags: atp.recommendedPackage=DataTypeMappingSets
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, CollectableElement,
Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
dataTypeM DataTypeMap * aggr This is one particular association between an
ap ApplicationDataType and its
ImplementationDataType.
modeRequ ModeRequestT * aggr This is one particular association between an
estTypeMa ypeMap ModeDeclarationGroup and its
p ImplementationDataType.

Table D.99: DataTypeMappingSet

Enumeration DataTypePolicyEnum
Package M2::AUTOSARTemplates::SystemTemplate::DataMapping
Note This class lists the supported DataTypePolicies.
Literal Description
legacy In case the System Description doesnt use a complete Software Component
Description (VFB View) this value can be chosen. This supports the inclusion of
legacy signals.

The aggregation of SwDataDefProps shall be used to configure the

"ComSignalDataInvalidValue" and the Data Semantics.

Tags: atp.EnumerationValue=0
networkRep- Ignore any networkRepresentationProps of this ISignal and use the
resentation networkRepresentation from the ComSpec.
FromCom
Spec Please note that the usage does not imply the existence of the SwDataDefProps in
the role networkRepresentation aggregated by the SenderComSpec or
ReceiverComSpec if an ImplementationDataType is defined.

Tags: atp.EnumerationValue=1
override If this value is chosen the requirements specified in the ComSpec
(networkRepresentationFromComSpec) are not fullfilled by the aggregated
SwDataDefProps. In this case the networkRepresentation is specified by the
aggregated swDataDefProps.

Tags: atp.EnumerationValue=2
transformingI This literal indicates that a transformer chain shall be used to communicate the
Signal ISignal as UINT8_N over the bus.

Tags: atp.EnumerationValue=4

Table D.100: DataTypePolicyEnum

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Class DataWriteCompletedEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This event is raised if an implicit write access was successful or an error occurred.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
eventSour VariableAccess 1 ref The variable access that triggers the event.
ce

Table D.101: DataWriteCompletedEvent

Class DelegationSwConnector
Package M2::AUTOSARTemplates::SWComponentTemplate::Composition
Note A delegation connector delegates one inner PortPrototype (a port of a component
that is used inside the composition) to a outer PortPrototype of compatible type that
belongs directly to the composition (a port that is owned by the composition).
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable, SwConnector
Attribute Type Mul. Kind Note
innerPort PortPrototype 1 iref The port that belongs to the ComponentPrototype
in the composition

Tags: xml.typeElement=true
outerPort PortPrototype 1 ref The port that is located on the outside of the
CompositionType

Table D.102: DelegationSwConnector

Class DependencyOnArtifact
Package M2::AUTOSARTemplates::CommonStructure::Implementation
Note Dependency on the existence of another artifact, e.g. a library.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
artifactDes AutosarEnginee 1 aggr The specified artifact needs to exist.
criptor ringObject
usage DependencyUs 1..* attr Specification for which process step(s) this
ageEnum dependency is required.

Table D.103: DependencyOnArtifact

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Class EcuAbstractionSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note The ECUAbstraction is a special AtomicSwComponentType that resides between a
software-component that wants to access ECU periphery and the Microcontroller
Abstraction. The EcuAbstractionSwComponentType introduces the possibility to link
from the software representation to its hardware description provided by the ECU
Resource Template.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtomicSwComponentType, AtpBlueprint, AtpBlueprintable,
AtpClassifier, AtpType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable, SwComponentType
Attribute Type Mul. Kind Note
hardwareE HwDescriptionE * ref Reference from the
lement ntity EcuAbstractionComponentType to the description
of the used HwElements.

Table D.104: EcuAbstractionSwComponentType

Enumeration EcucConfigurationClassEnum
Package M2::AUTOSARTemplates::ECUCParameterDefTemplate
Note Possible configuration classes for the AUTOSAR configuration parameters.
Literal Description
Link Link Time: parts of configuration are delivered from another object code file

Tags: atp.EnumerationValue=0
PostBuild PostBuildTime: after compilation a configuration parameter can be changed.

Tags: atp.EnumerationValue=1
PreCompile PreCompile Time: after compilation a configuration parameter can not be changed
any more.

Tags: atp.EnumerationValue=2
Published PublishedInformation is used to specify the fact that certain information is fixed
Information even before the pre-compile stage.

Tags: atp.EnumerationValue=3

Table D.105: EcucConfigurationClassEnum

Class EcucForeignReferenceDef
Package M2::AUTOSARTemplates::ECUCParameterDefTemplate
Note Specify a reference to an XML description of an entity described in another
AUTOSAR template.
Base ARObject, AtpDefinition, EcucAbstractExternalReferenceDef, EcucAbstract
ReferenceDef, EcucCommonAttributes, EcucDefinitionElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
destination String 1 attr The type in the AUTOSAR Metamodel to which
Type instance this reference is allowed to point to.

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Attribute Type Mul. Kind Note

Table D.106: EcucForeignReferenceDef

Class EcucModuleConfigurationValues
Package M2::AUTOSARTemplates::ECUCDescriptionTemplate
Note Head of the configuration of one Module. A Module can be a BSW module as well as
the RTE and ECU Infrastructure.

As part of the BSW module description, the EcucModuleConfigurationValues element

has two different roles:

The recommendedConfiguration contains parameter values recommended by the

BSW module vendor.

The preconfiguredConfiguration contains values for those parameters which are fixed
by the implementation and cannot be changed.

These two EcucModuleConfigurationValues are used when the base

EcucModuleConfigurationValues (as part of the base ECU configuration) is created to
fill parameters with initial values.

Tags: atp.recommendedPackage=EcucModuleConfigurationValuess
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
container EcucContainerV 1..* aggr Aggregates all containers that belong to this
alue module configuration.

atpVariation: [RS_ECUC_00078]

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=definition, shortName,
variationPoint.shortLabel
vh.latestBindingTime=postBuild
xml.sequenceOffset=10
definition EcucModuleDef 1 ref Reference to the definition of this
EcucModuleConfigurationValues element.
Typically, this is a vendor specific module
configuration.

Tags: xml.sequenceOffset=-10
ecucDefEd RevisionLabelSt 1 attr This is the version info of the ModuleDef ECUC
ition ring Parameter definition to which this values conform
to / are based on.

For the Definition of ModuleDef ECUC Parameters

the AdminData shall be used to express the
semantic changes. The compatibility rules
between the definition and value revision labels is
up to the modules vendor.

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Attribute Type Mul. Kind Note

implement EcucConfigurati 1 attr Specifies the kind of deliverable this
ationConfi onVariantEnum EcucModuleConfigurationValues element
gVariant provides. If this element is not used in a particular
role (e.g. preconfiguredConfiguration or
recommendedConfiguration) then the value must
be one of VariantPreCompile, VariantLinkTime,
VariantPostBuild.
moduleDe BswImplementa 0..1 ref Referencing the BSW module description, which
scription tion this EcucModuleConfigurationValues element is
configuring. This is optional because the
EcucModuleConfigurationValues element is also
used to configure the ECU infrastructure (memory
map) or Application SW-Cs. However in case the
EcucModuleConfigurationValues are used to
configure the module, the reference is mandatory
in order to fetch module specific "common"
published information.

Table D.107: EcucModuleConfigurationValues

Class EcucModuleDef
Package M2::AUTOSARTemplates::ECUCParameterDefTemplate
Note Used as the top-level element for configuration definition for Software Modules,
including BSW and RTE as well as ECU Infrastructure.

Tags: atp.recommendedPackage=EcucModuleDefs
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpDefinition, Collectable
Element, EcucDefinitionElement, Identifiable, MultilanguageReferrable, Packageable
Element, Referrable
Attribute Type Mul. Kind Note
apiService CIdentifier 0..1 attr For CDD modules this attribute holds the
Prefix apiServicePrefix.

The shortName of the module definition of a

Complex Driver is always "Cdd". Therefore for
CDD modules the module apiServicePrefix is
described with this attribute.
container EcucContainerD 1..* aggr Aggregates the top-level container definitions of
ef this specific module definition.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName
xml.sequenceOffset=11
postBuildV Boolean 0..1 attr Indicates if a module supports different post-build
ariantSupp variants (previously known as post-build
ort selectable configuration sets). TRUE means yes,
FALSE means no.

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Attribute Type Mul. Kind Note

refinedMod EcucModuleDef 0..1 ref Optional reference from the Vendor Specific
uleDef Module Definition to the Standardized Module
Definition it refines. In case this EcucModuleDef
has the category
STANDARDIZED_MODULE_DEFINITION this
reference shall not be provided. In case this
EcucModuleDef has the category
VENDOR_SPECIFIC_MODULE_DEFINITION
this reference is mandatory.

Stereotypes: atpUriDef
supported EcucConfigurati * attr Specifies which ConfigurationVariants are
ConfigVari onVariantEnum supported by this software module. This attribute
ant is optional if the EcucModuleDef has the category
STANDARDIZED_MODULE_DEFINITION. If the
category attribute of the EcucModuleDef is set to
VENDOR_SPECIFIC_MODULE_DEFINITION
then this attribute is mandatory.

Table D.108: EcucModuleDef

Class EcucParamConfContainerDef
Package M2::AUTOSARTemplates::ECUCParameterDefTemplate
Note Used to define configuration containers that can hierarchically contain other
containers and/or parameter definitions.
Base ARObject, AtpDefinition, EcucContainerDef, EcucDefinitionElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
parameter EcucParameter * aggr The parameters defined within the
Def EcucParamConfContainerDef.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName
reference EcucAbstractRe * aggr The references defined within the
ferenceDef EcucParamConfContainerDef.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName
subContai EcucContainerD * aggr The containers defined within the
ner ef EcucParamConfContainerDef.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName

Table D.109: EcucParamConfContainerDef

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Class EngineeringObject (abstract)

Package M2::AUTOSARTemplates::GenericStructure::GeneralTemplateClasses::Engineering
Object
Note This class specifies an engineering object. Usually such an object is represented by a
file artifact. The properties of engineering object are such that the artifact can be
found by querying an ASAM catalog file.

The engineering object is uniquely identified by

domain+category+shortLabel+revisionLabel.
Base ARObject
Attribute Type Mul. Kind Note
category NameToken 1 attr This denotes the role of the engineering object in
the development cycle. Categories are such as
SWSRC for source code
SWOBJ for object code
SWHDR for a C-header file

Further roles need to be defined via Methodology.

Tags: xml.sequenceOffset=20
domain NameToken 0..1 attr This denotes the domain in which the engineering
object is stored. This allows to indicate various
segments in the repository keeping the
engineering objects. The domain may segregate
companies, as well as automotive domains.
Details need to be defined by the Methodology.

Attribute is optional to support a default domain.

Tags: xml.sequenceOffset=40
revisionLa RevisionLabelSt * attr This is a revision label denoting a particular
bel ring version of the engineering object.

Tags: xml.sequenceOffset=30
shortLabel NameToken 1 attr This is the short name of the engineering object.
Note that it is modeled as NameToken and not as
Identifier since in ASAM-CC it is also a
NameToken.

Tags: xml.sequenceOffset=10

Table D.110: EngineeringObject

Class ExclusiveArea
Package M2::AUTOSARTemplates::CommonStructure::InternalBehavior
Note Prevents an executable entity running in the area from being preempted.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

Table D.111: ExclusiveArea

Class ExecutableEntity (abstract)

Package M2::AUTOSARTemplates::CommonStructure::InternalBehavior
Note Abstraction of executable code.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
activationR ExecutableEntit * aggr If the ExecutableEntity provides at least one
eason yActivationReas activationReason element the RTE resp. BSW
on Scheduler shall provide means to read the
activation vector of this executable entity
execution.

If no activationReason element is provided the

feature of being able to determine the activating
RTEEvent is disabled for this ExecutableEntity.
canEnterE ExclusiveArea * ref This means that the executable entity can
xclusiveAr enter/leave the referenced exclusive area through
ea explicit API calls.
exclusiveA ExclusiveAreaN * ref This represents the set of
reaNesting estingOrder ExclusiveAreaNestingOrders recognized by this
Order ExecutableEntity.
minimumSt TimeValue 1 attr Specifies the time in seconds by which two
artInterval consecutive starts of an ExecutableEntity are
guaranteed to be separated.
reentrancy ReentrancyLeve 0..1 attr The reentrancy level of this ExecutableEntity. See
Level lEnum the documentation of the enumeration type
ReentrancyLevelEnum for details.

Please note that nonReentrant interfaces can

have also reentrant or multicoreReentrant
implementations, and reentrant interfaces can
also have multicoreReentrant implementations.
runsInside ExclusiveArea * ref The executable entity runs completely inside the
ExclusiveA referenced exclusive area.
rea
swAddrMet SwAddrMethod 0..1 ref Addressing method related to this code entity. Via
hod an association to the same SwAddrMethod, it can
be specified that several code entities (even of
different modules or components) shall be located
in the same memory without already specifying
the memory section itself.

Table D.112: ExecutableEntity

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Class ExecutableEntityActivationReason
Package M2::AUTOSARTemplates::CommonStructure::InternalBehavior
Note This meta-class represents the ability to define the reason for the activation of the
enclosing ExecutableEntity.
Base ARObject, ImplementationProps, Referrable
Attribute Type Mul. Kind Note
bitPosition PositiveInteger 1 attr This attribute allows for defining the position of the
enclosing ExecutableEntityActivationReason in
the activation vector.

Table D.113: ExecutableEntityActivationReason

Class ExternalTriggerOccurredEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note The event is raised when the referenced trigger have been occurred.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
trigger Trigger 0..1 iref Reference to the applicable Trigger.

Table D.114: ExternalTriggerOccurredEvent

Class ExternalTriggeringPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Trigger
Note If a RunnableEntity owns an ExternalTriggeringPoint it is entitled to raise an
ExternalTriggerOccurredEvent.
Base ARObject
Attribute Type Mul. Kind Note
ident ExternalTriggeri 0..1 aggr The aggregation in the role ident provides the
ngPointIdent ability to make the ExternalTriggeringPoint
identifiable.

From the semantical point of view, the

ExternalTriggeringPoint is considered a first-class
Identifiable and therefore the aggregation in the
role ident shall always exist (until it may be
possible to let ModeAccessPoint directly inherit
from Identifiable).

Tags: atp.Status=shallBecomeMandatory
xml.sequenceOffset=-100
trigger Trigger 0..1 iref The trigger taken for the ExternalTriggeringPoint.

Tags: xml.namePlural=TRIGGER-IREF; xml.role

Element=false; xml.roleWrapperElement=true;
xml.typeElement=true; xml.typeWrapper
Element=false

Table D.115: ExternalTriggeringPoint

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Class FlatInstanceDescriptor
Package M2::AUTOSARTemplates::CommonStructure::FlatMap
Note Represents exactly one node (e.g. a component instance or data element) of the
instance tree of a software system. The purpose of this element is to map the various
nested representations of this instance to a flat representation and assign a unique
name (shortName) to it.

Use cases:
Specify unique names of measurable data to be used by MCD tools
Specify unique names of calibration data to be used by MCD tool
Specify a unique name for an instance of a component prototype in the ECU
extract of the system description

Note that in addition it is possible to assign alias names via AliasNameAssignment.

Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
ecuExtract AtpFeature 0..1 iref Refers to the instance in the ECU extract. This is
Reference valid only, if the FlatMap is used in the context of
an ECU extract.

The reference shall be such that it uniquely

defines the object instance. For example, if a data
prototype is declared as a role within an
SwcInternalBehavior, it is not enough to state the
SwcInternalBehavior as context and the
aggregated data prototype as target. In addition,
the reference shall also include the complete path
identifying instance of the component prototype
and the AtomicSoftwareComponentType, which is
refered by the particular SwcInternalBehavior.

Tags: xml.sequenceOffset=40
role Identifier 0..1 attr The role denotes the particular role of the
downstream memory location described by this
FlatInstanceDescriptor.

It applies to use case where one upstream object

results in multiple downstream objects, e.g.
ModeDeclarationGroupPrototypes which are
measurable. In this case the RTE will provide
locations for current mode, previous mode and
next mode.
swDataDef SwDataDefProp 0..1 aggr The properties of this FlatInstanceDescriptor.
Props s

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Attribute Type Mul. Kind Note

upstreamR AtpFeature 0..1 iref Refers to the instance in the context of an
eference "upstream" descriptions, wich could be the system
or system extract description, the basic software
module description or (if a flat map is used in
preliminary context) a description of an atomic
component or composition. This reference is
optional in case the flat map is used in ECU
context.

The reference shall be such that it uniquely

defines the object instance in the given context.
For example, if a data prototype is declared as a
role within an SwcInternalBehavior, it is not
enough to state the SwcInternalBehavior as
context and the aggregated data prototype as
target. In addition, the reference shall also include
the complete path identifying the instance of the
component prototype that contains the particular
instance of SwcInternalBehavior.

Tags: xml.sequenceOffset=20

Table D.116: FlatInstanceDescriptor

Class FlatMap
Package M2::AUTOSARTemplates::CommonStructure::FlatMap
Note Contains a flat list of references to software objects. This list is used to identify
instances and to resolve name conflicts. The scope is given by the
RootSwCompositionPrototype for which it is used, i.e. it can be applied to a system,
system extract or ECU-extract.

An instance of FlatMap may also be used in a preliminary context, e.g. in the scope of
a software component before integration into a system. In this case it is not referred
by a RootSwCompositionPrototype.

Tags: atp.recommendedPackage=FlatMaps
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, CollectableElement,
Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

instance FlatInstanceDes 1..* aggr A descriptor instance aggregated in the flat map.
criptor
The variation point accounts for the fact, that the
system in scope can be subject to variability, and
thus the existence of some instances is variable.

The aggregation has been made splitable

because the content might be contributed by
different stakeholders at different times in the
workflow. Plus, the overall size might be so big
that eventually it becomes more manageable if it is
distributed over several files.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=postBuild

Table D.117: FlatMap

Enumeration HandleInvalidEnum
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Strategies of handling the reception of invalidValue.
Literal Description
dontInvali- Invalidation is switched off.
date
Tags: atp.EnumerationValue=0
external Replace a received invalidValue. The replacement value is sourced from the
Replacement externalReplacement.

Tags: atp.EnumerationValue=1
keep The application software is supposed to handle signal invalidation on RTE API level
either by DataReceiveErrorEvent or check of error code on read access.

Tags: atp.EnumerationValue=2
replace Replace a received invalidValue. The replacement value is specified by the
initValue.

Tags: atp.EnumerationValue=3

Table D.118: HandleInvalidEnum

Enumeration HandleOutOfRangeEnum
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note A value of this type is taken for controlling the range checking behavior of the
AUTOSAR RTE.
Literal Description
default The RTE will use the initValue if the actual value is out of the specified bounds.

Tags: atp.EnumerationValue=0

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external This indicates that the value replacement is sourced from the attribute replaceWith.
Replacement
Tags: atp.EnumerationValue=1
ignore The RTE will ignore any attempt to send or receive the corresponding dataElement
if the value is out of the specified range.

Tags: atp.EnumerationValue=2
invalid The RTE will use the invalidValue if the value is out of the specified bounds.

Tags: atp.EnumerationValue=3
none A range check is not required.

Tags: atp.EnumerationValue=4
saturate The RTE will saturate the value of the dataElement such that it is limited to the
applicable upper bound if it is greater than the upper bound. Consequently, it is
limited to the applicable lower bound if the value is less than the lower bound.

Tags: atp.EnumerationValue=5

Table D.119: HandleOutOfRangeEnum

Enumeration HandleOutOfRangeStatusEnum
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note This enumeration defines how the RTE handles values that are out of range.
Literal Description
indicate The RTE sets the return status to RTE_E_OUT_OF_RANGE if the received value
is out of range and the attribute handleOutOfRange is not set to "none" or "invalid".

Tags: atp.EnumerationValue=0
silent The RTE sets the return status to RTE_E_OK

Tags: atp.EnumerationValue=1

Table D.120: HandleOutOfRangeStatusEnum

Enumeration HandleTimeoutEnum
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Strategies of handling a reception timeout violation.
Literal Description
none If set to none no replacement shall take place.

Tags: atp.EnumerationValue=0
replace If set to replace, the replacement value shall be the ComInitValue.

Tags: atp.EnumerationValue=1
replaceBy If set to replace, the replacement value shall be the timeout substitution value.
Timeout
Substitution Tags: atp.EnumerationValue=2
Value

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Table D.121: HandleTimeoutEnum

Class HwElement
Package M2::AUTOSARTemplates::EcuResourceTemplate
Note This represents the ability to describe Hardware Elements on an instance level. The
particular types of hardware are distinguished by the category. This category
determines the applicable attributes. The possible categories and attributes are
defined in HwCategory.

Tags: atp.recommendedPackage=HwElements
Base ARElement, ARObject, CollectableElement, HwDescriptionEntity, Identifiable,
MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
hwElement HwElementCon * aggr This represents one particular connection
Connectio nector between two hardware elements.
n
Stereotypes: atpVariation
Tags: vh.latestBindingTime=systemDesignTime
xml.sequenceOffset=110
hwPinGrou HwPinGroup * aggr This aggregation is used to describe the
p connection facilities of a hardware element. Note
that hardware element has no pins but only
pingroups.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=systemDesignTime
xml.sequenceOffset=90
nestedEle HwElement * ref This association is used to establish hierarchies of
ment hw elements. Note that one particular HwElement
can be target of this association only once. I.e.
multiple instantiation of the same HwElement is
not supported (at any hierarchy level).

Stereotypes: atpVariation
Tags: vh.latestBindingTime=systemDesignTime
xml.sequenceOffset=70

Table D.122: HwElement

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Class ISignal
Package M2::AUTOSARTemplates::SystemTemplate::Fibex::FibexCore::CoreCommunication
Note Signal of the Interaction Layer. The RTE supports a "signal fan-out" where the same
System Signal is sent in different SignalIPdus to multiple receivers.

To support the RTE "signal fan-out" each SignalIPdu contains ISignals. If the same
System Signal is to be mapped into several SignalIPdus there is one ISignal needed
for each ISignalToIPduMapping.

ISignals describe the Interface between the Precompile configured RTE and the
potentially Postbuild configured Com Stack (see ECUC Parameter Mapping).

In case of the SystemSignalGroup an ISignal must be created for each SystemSignal

contained in the SystemSignalGroup.

Tags: atp.recommendedPackage=ISignals
Base ARObject, CollectableElement, FibexElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
dataTransf DataTransforma 0..1 ref Optional reference to a DataTransformation which
ormation tion represents the transformer chain that is used to
transform the data that shall be placed inside this
ISignal.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=dataTransformation, variation
Point.shortLabel
vh.latestBindingTime=codeGenerationTime
dataTypeP DataTypePolicy 1 attr With the aggregation of SwDataDefProps an
olicy Enum ISignal specifies how it is represented on the
network. This representation follows a particular
policy. Note that this causes some redundancy
which is intended and can be used to support
flexible development methodology as well as
subsequent integrity checks.

If the policy
"networkRepresentationFromComSpec" is chosen
the network representation from the ComSpec
that is aggregated by the PortPrototype shall be
used. If the "override" policy is chosen the
requirements specified in the PortInterface and in
the ComSpec are not fulfilled by the
networkRepresentationProps. In case the System
Description doesnt use a complete Software
Component Description (VFB View) the "legacy"
policy can be chosen.
iSignalPro ISignalProps 0..1 aggr Additional optional ISignal properties that may be
ps stored in different files.

Stereotypes: atpSplitable
Tags: atp.Splitkey=iSignalProps

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Attribute Type Mul. Kind Note

iSignalTyp ISignalTypeEnu 0..1 attr This attribute defines whether this iSignal is an
e m array that results in an UINT8_N / UINT8_DYN
ComSignalType in the COM configuration or a
primitive type.
initValue ValueSpecificati 0..1 aggr Optional definition of a ISignals initValue in case
on the System Description doesnt use a complete
Software Component Description (VFB View).
This supports the inclusion of legacy system
signals.

This value can be used to configure the Signals

"InitValue".

If a full DataMapping exist for the SystemSignal

this information may be available from a
configured SenderComSpec and
ReceiverComSpec. In this case the initvalues in
SenderComSpec and/or ReceiverComSpec
override this optional value specification. Further
restrictions apply from the RTE specification.
length Integer 1 attr Size of the signal in bits. The size needs to be
derived from the mapped VariableDataPrototype
according to the mapping of primitive DataTypes
to BaseTypes as used in the RTE. Indicates
maximum size for dynamic length signals.

The ISignal length of zero bits is allowed.

networkRe SwDataDefProp 0..1 aggr Specification of the actual network representation.
presentatio s The usage of SwDataDefProps for this purpose is
nProps restricted to the attributes compuMethod and
baseType. The optional baseType attributes
"memAllignment" and "byteOrder" shall not be
used.

The attribute "dataTypePolicy" in the

SystemTemplate element defines whether this
network representation shall be ignored and the
information shall be taken over from the network
representation of the ComSpec.

If "override" is chosen by the system integrator the

network representation can violate against the
requirements defined in the PortInterface and in
the network representation of the ComSpec.

In case that the System Description doesnt use a

complete Software Component Description (VFB
View) this element is used to configure
"ComSignalDataInvalidValue" and the Data
Semantics.
systemSig SystemSignal 1 ref Reference to the System Signal that is supposed
nal to be transmitted in the ISignal.

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Attribute Type Mul. Kind Note

timeoutSu ValueSpecificati 0..1 aggr Defines and enables the ComTimeoutSubstituition
bstitutionV on for this ISignal.
alue
transforma TransformationI * aggr A transformer chain consists of an ordered list of
tionISignal SignalProps transformers. The ISignal specific configuration
Props properties for each transformer are defined in the
TransformationISignalProps class. The
transformer configuration properties that are
common for all ISignals are described in the
TransformationTechnology class.

Table D.123: ISignal

Class ISignalGroup
Package M2::AUTOSARTemplates::SystemTemplate::Fibex::FibexCore::CoreCommunication
Note SignalGroup of the Interaction Layer. The RTE supports a "signal fan-out" where the
same System Signal Group is sent in different SignalIPdus to multiple receivers.

An ISignalGroup refers to a set of ISignals that shall always be kept together. A

ISignalGroup represents a COM Signal Group.

Therefore it is recommended to put the ISignalGroup in the same Package as

ISignals (see atp.recommendedPackage)

Tags: atp.recommendedPackage=ISignalGroup
Base ARObject, CollectableElement, FibexElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
comBased DataTransforma 0..1 ref Optional reference to a DataTransformation which
SignalGrou tion represents the transformer chain that is used to
pTransfor transform the data that shall be placed inside this
mation ISignalGroup based on the
COMBasedTransformer approach.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=comBasedSignalGroup
Transformation, variationPoint.shortLabel
vh.latestBindingTime=codeGenerationTime
iSignal ISignal * ref Reference to a set of ISignals that shall always be
kept together.
systemSig SystemSignalGr 1 ref Reference to the SystemSignalGroup that is
nalGroup oup defined on VFB level and that is supposed to be
transmitted in the ISignalGroup.
transforma TransformationI * aggr A transformer chain consists of an ordered list of
tionISignal SignalProps transformers. The ISignalGroup specific
Props configuration properties for each transformer are
defined in the TransformationISignalProps class.
The transformer configuration properties that are
common for all ISignalGroups are described in the
TransformationTechnology class.

Table D.124: ISignalGroup

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Class ISignalProps
Package M2::AUTOSARTemplates::SystemTemplate::Fibex::FibexCore::CoreCommunication
Note Additional ISignal properties that may be stored in different files.
Base ARObject
Attribute Type Mul. Kind Note
handleOut HandleOutOfRa 1 attr This attribute defines the outOfRangeHandling for
OfRange ngeEnum received and sent signals.

Table D.125: ISignalProps

Class Identifiable (abstract)

Package M2::AUTOSARTemplates::GenericStructure::GeneralTemplateClasses::Identifiable
Note Instances of this class can be referred to by their identifier (within the namespace
borders). In addition to this, Identifiables are objects which contribute significantly to
the overall structure of an AUTOSAR description. In particular, Identifiables might
contain Identifiables.
Base ARObject, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
desc MultiLanguage 0..1 aggr This represents a general but brief (one
OverviewParagr paragraph) description what the object in question
aph is about. It is only one paragraph! Desc is
intended to be collected into overview tables. This
property helps a human reader to identify the
object in question.

More elaborate documentation, (in particular how

the object is built or used) should go to
"introduction".

Tags: xml.sequenceOffset=-60
category CategoryString 0..1 attr The category is a keyword that specializes the
semantics of the Identifiable. It affects the
expected existence of attributes and the
applicability of constraints.

Tags: xml.sequenceOffset=-50
adminData AdminData 0..1 aggr This represents the administrative data for the
identifiable object.

Tags: xml.sequenceOffset=-40
annotation Annotation * aggr Possibility to provide additional notes while
defining a model element (e.g. the ECU
Configuration Parameter Values). These are not
intended as documentation but are mere design
notes.

Tags: xml.sequenceOffset=-25
introductio Documentation 0..1 aggr This represents more information about how the
n Block object in question is built or is used. Therefore it is
a DocumentationBlock.

Tags: xml.sequenceOffset=-30

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Attribute Type Mul. Kind Note

uuid String 0..1 attr The purpose of this attribute is to provide a
globally unique identifier for an instance of a
meta-class. The values of this attribute should be
globally unique strings prefixed by the type of
identifier. For example, to include a DCE UUID as
defined by The Open Group, the UUID would be
preceded by "DCE:". The values of this attribute
may be used to support merging of different
AUTOSAR models. The form of the UUID
(Universally Unique Identifier) is taken from a
standard defined by the Open Group (was Open
Software Foundation). This standard is widely
used, including by Microsoft for COM (GUIDs) and
by many companies for DCE, which is based on
CORBA. The method for generating these 128-bit
IDs is published in the standard and the
effectiveness and uniqueness of the IDs is not in
practice disputed. If the id namespace is omitted,
DCE is assumed. An example is
"DCE:2fac1234-31f8-11b4-a222-08002b34c003".
The uuid attribute has no semantic meaning for an
AUTOSAR model and there is no requirement for
AUTOSAR tools to manage the timestamp.

Tags: xml.attribute=true

Table D.126: Identifiable

Class Implementation (abstract)

Package M2::AUTOSARTemplates::CommonStructure::Implementation
Note Description of an implementation a single software component or module.
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
buildAction BuildActionMani 0..1 ref A manifest specifying the intended build actions
Manifest fest for the software delivered with this implementation.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=codeGenerationTime
codeDescri Code 1..* aggr Specifies the provided implementation code.
ptor
compiler Compiler * aggr Specifies the compiler for which this
implementation has been released
generated DependencyOn * aggr Relates to an artifact that will be generated during
Artifact Artifact the integration of this Implementation by an
associated generator tool. Note that this is an
optional information since it might not always be in
the scope of a single module or component to
provide this information.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

hwElement HwElement * ref The hardware elements (e.g. the processor)
required for this implementation.
linker Linker * aggr Specifies the linker for which this implementation
has been released.
mcSupport McSupportData 0..1 aggr The measurement & calibration support data
belonging to this implementation. The aggregtion
is atpSplitable because in case of an already
exisiting BSW Implementation model, this
description will be added later in the process,
namely at code generation time.

Stereotypes: atpSplitable
Tags: atp.Splitkey=mcSupport
programmi Programmingla 1 attr Programming language the implementation was
ngLanguag nguageEnum created in.
e
requiredArt DependencyOn * aggr Specifies that this Implementation depends on the
ifact Artifact existance of another artifact (e.g. a library). This
aggregation of DependencyOnArtifact is subject to
variability with the purpose to support variability in
the implementations. Different algorithms in the
implementation might cause different
dependencies, e.g. the number of used libraries.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
requiredGe DependencyOn * aggr Relates this Implementation to a generator tool in
neratorToo Artifact order to generate additional artifacts during
l integration.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
resourceC ResourceConsu 1 aggr All static and dynamic resources for each
onsumptio mption implementation are described within the
n ResourceConsumption class.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName
swVersion RevisionLabelSt 1 attr Software version of this implementation. The
ring numbering contains three levels (like major, minor,
patch), its values are vendor specific.
swcBswMa SwcBswMappin 0..1 ref This allows a mapping between an SWC and a
pping g BSW behavior to be attached to an
implementation description (for AUTOSAR
Service, ECU Abstraction and Complex Driver
Components). It is up to the methodology to
define whether this reference has to be set for the
Swc- or BswImplementtion or for both.
usedCode String 0..1 attr Optional: code generator used.
Generator
vendorId PositiveInteger 1 attr Vendor ID of this Implementation according to the
AUTOSAR vendor list

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Attribute Type Mul. Kind Note

Table D.127: Implementation

Class ImplementationDataType
Package M2::AUTOSARTemplates::CommonStructure::ImplementationDataTypes
Note Describes a reusable data type on the implementation level. This will typically
correspond to a typedef in C-code.

Tags: atp.recommendedPackage=ImplementationDataTypes
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
AutosarDataType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
dynamicAr String 0..1 attr Specifies the profile which the array will follow in
raySizePro case this data type is a variable size array.
file
subElemen Implementation * aggr Specifies an element of an array, struct, or union
t (ordered) DataTypeEleme data type.
nt
The aggregation of
ImplementionDataTypeElement is subject to
variability with the purpose to support the
conditional existence of elements inside a
ImplementationDataType representing a structure.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
symbolPro SymbolProps 0..1 aggr This represents the SymbolProps for the
ps ImplementationDataType.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName
typeEmitte NameToken 0..1 attr This attribute is used to control which part of the
r AUTOSAR toolchain is supposed to trigger data
type definitions.

Table D.128: ImplementationDataType

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Class ImplementationDataTypeElement
Package M2::AUTOSARTemplates::CommonStructure::ImplementationDataTypes
Note Declares a data object which is locally aggregated. Such an element can only be
used within the scope where it is aggregated.

This element either consists of further subElements or it is further defined via its
swDataDefProps.

There are several use cases within the system of ImplementationDataTypes fur such
a local declaration:
It can represent the elements of an array, defining the element type and array
size
It can represent an element of a struct, defining its type
It can be the local declaration of a debug element.

Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,

MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
arraySize PositiveInteger 0..1 attr The existence of this attributes (if bigger than 0)
defines the size of an array and declares that this
ImplementationDataTypeElement represents the
type of each single array element.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
arraySizeH ArraySizeHandli 0..1 attr The way how the size of the array is handled in
andling ngEnum case of a variable size array.
arraySizeS ArraySizeSema 0..1 attr This attribute controls the meaning of the value of
emantics nticsEnum the array size.
subElemen Implementation * aggr Element of an array, struct, or union in case of a
t (ordered) DataTypeEleme nested declaration (i.e. without using "typedefs").
nt
The aggregation of
ImplementionDataTypeElement is subject to
variability with the purpose to support the
conditional existence of elements inside a
ImplementationDataType representing a structure.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
swDataDef SwDataDefProp 0..1 aggr The properties of this
Props s ImplementationDataTypeElementt.

Table D.129: ImplementationDataTypeElement

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Class ImplementationProps (abstract)

Package M2::AUTOSARTemplates::CommonStructure::Implementation
Note Defines a symbol to be used as (depending on the concrete case) either a complete
replacement or a prefix when generating code artifacts.
Base ARObject, Referrable
Attribute Type Mul. Kind Note
symbol CIdentifier 1 attr The symbol to be used as (depending on the
concrete case) either a complete replacement or a
prefix.

Table D.130: ImplementationProps

Class IncludedDataTypeSet
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Included
DataTypes
Note An includedDataTypeSet declares that a set of AutosarDataType is used by a basic
software module or a software component for its implementation and the
AutosarDataType becomes part of the contract.

This information is required if the AutosarDataType is not used for any DataPrototype
owned by this software component or if the enumeration literals, lowerLimit and
upperLimit constants shall be generated with a literalPrefix.

The optional literalPrefix is used to add a common prefix on enumeration literals,

lowerLimit and upperLimit constants created by the RTE.
Base ARObject
Attribute Type Mul. Kind Note
dataType AutosarDataTyp 1..* ref AutosarDataType belonging to the
e includedDataTypeSet
literalPrefix Identifier 0..1 attr LiteralPrefix defines a common prefix for all
AutosarDataTypes of the includedDataTypeSet to
be added on enumeration literals, lowerLimit and
upperLimit constants created by the RTE.

Table D.131: IncludedDataTypeSet

Class IncludedModeDeclarationGroupSet
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Mode
DeclarationGroup
Note An IncludedModeDeclarationGroupSet declares that a set of ModeDeclarationGroups
used by the software component for its implementation and consequently these
ModeDeclarationGroups become part of the contract.
Base ARObject
Attribute Type Mul. Kind Note
modeDecl ModeDeclaratio 1..* ref This represents the referenced
arationGro nGroup ModeDeclarationGroup.
up

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Attribute Type Mul. Kind Note

prefix Identifier 0..1 attr The prefix shall be used by the RTE generator as
a prefix for the creation of symbols related to the
referenced ModeDeclarationGroups, e.g
RTE_TRANSITION_<ModeDeclarationGroup>.

Table D.132: IncludedModeDeclarationGroupSet

Class InitEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This RTEEvent is supposed to be used for initialization purposes, i.e. for starting and
restarting a partition. It is not guaranteed that all RunnableEntities referenced by this
InitEvent are executed before the regular RunnableEntities are executed for the first
time. The execution order depends on the task mapping.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note

Table D.133: InitEvent

Class InstantiationDataDefProps
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::
InstantiationDataDefProps
Note This is a general class allowing to apply additional SwDataDefProps to particular
instantiations of a DataPrototype.

Typically the accessibility and further information like alias names for a particular data
is modeled on the level of DataPrototypes (especially VariableDataPrototypes,
ParameterDataPrototypes). But due to the recursive structure of the meta-model
concerning data types (a composite (data) type consists out of data prototypes) a part
of the MCD information is described in the data type (in case of
ApplicationCompositeDataType).

This is a strong restriction in the reuse of data typed because the data type should be
re-used for different VariableDataPrototypes and ParameterDataPrototypes to
guarantee type compatibility on C-implementation level (e.g. data of a Port is stored
in PIM or a ParameterDataPrototype used as ROM Block and shall be typed by the
same data type as NVRAM Block).

This class overcomes such a restriction if applied properly.

Base ARObject
Attribute Type Mul. Kind Note
parameterI AutosarParamet 0..1 aggr This is the particular ParameterDataPrototypes on
nstance erRef which the swDataDefProps shall be applied.
swDataDef SwDataDefProp 1 aggr These are the particular data definition properties
Props s which shall be applied
variableIns AutosarVariable 0..1 aggr This is the particular VariableDataPrototypes on
tance Ref which the swDataDefProps shall be applied.

Table D.134: InstantiationDataDefProps

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Class InstantiationRTEEventProps (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Composition
Note This meta class represents the ability to refine the properties of RTEEvents for
particular instances of a software component.
Base ARObject
Attribute Type Mul. Kind Note
refinedEve RTEEvent 1 iref This instance ref denotes the Timing Event for
nt which the period shall be refined on an instance
level.
shortLabel Identifier 1 attr The main purpose of the shortLabel is to
contribute to the splitkey of aggregations that are
atpSplitable.

Table D.135: InstantiationRTEEventProps

Class InternalBehavior (abstract)

Package M2::AUTOSARTemplates::CommonStructure::InternalBehavior
Note Common base class (abstract) for the internal behavior of both software components
and basic software modules/clusters.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
constantM ParameterData * aggr Describes a read only memory object containing
emory Prototype characteristic value(s) implemented by this
InternalBehavior.

The shortName of ParameterDataPrototype has to

be equal to the C identifier of the described
constant.

The characteristic value(s) might be shared

between SwComponentPrototypes of the same
SwComponentType.

The aggregation of constantMemory is subject to

variability with the purpose to support variability in
the software component or module
implementations. Typically different algorithms in
the implementation are requiring different number
of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
constantVa ConstantSpecifi * ref Reference to the ConstanSpecificationMapping to
lueMappin cationMappingS be applied for the particular InternalBehavior
g et
Stereotypes: atpSplitable
Tags: atp.Splitkey=constantValueMapping

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Attribute Type Mul. Kind Note

dataTypeM DataTypeMappi * ref Reference to the DataTypeMapping to be applied
apping ngSet for the particular InternalBehavior

Stereotypes: atpSplitable
Tags: atp.Splitkey=dataTypeMapping
exclusiveA ExclusiveArea * aggr This specifies an ExclusiveArea for this
rea InternalBehavior. The exclusiveArea is local to the
component resp. module. The aggregation of
ExclusiveAreas is subject to variability. Note: the
number of ExclusiveAreas might vary due to the
conditional existence of RunnableEntities or
BswModuleEntities.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
exclusiveA ExclusiveAreaN * aggr This represents the set of
reaNesting estingOrder ExclusiveAreaNestingOrder owned by the
Order InternalBehavior.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
staticMem VariableDataPr * aggr Describes a read and writeable static memory
ory ototype object representing measurerment variables
implemented by this software component. The
term "static" is used in the meaning of
"non-temporary" and does not necessarily specify
a linker encapsulation. This kind of memory is
only supported if supportsMultipleInstantiation is
FALSE.

The shortName of the VariableDataPrototype has

to be equal with the C identifier of the described
variable.

The aggregation of staticMemory is subject to

variability with the purpose to support variability in
the software components implementations.

Typically different algorithms in the implementation

are requiring different number of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

Table D.136: InternalBehavior

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Class InternalTriggerOccurredEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note The event is raised when the referenced internal trigger have been occurred.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
eventSour InternalTriggerin 1 ref Internal Triggering Point that triggers the event.
ce gPoint

Table D.137: InternalTriggerOccurredEvent

Class InternalTriggeringPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Trigger
Note If a RunnableEntity owns a InternalTriggeringPoint it is entitled to trigger the execution
of RunnableEntities of the corresponding software-component.
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
swImplPoli SwImplPolicyEn 0..1 attr This attribute, when set to value queued, allows
cy um for a queued processing of Triggers.

Table D.138: InternalTriggeringPoint

Class InvalidationPolicy
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Specifies whether the component can actively invalidate a particular dataElement.

If no invalidationPolicy points to a dataElement this is considered to yield the identical

result as if the handleInvalid attribute was set to dontInvalidate.
Base ARObject
Attribute Type Mul. Kind Note
dataEleme VariableDataPr 1 ref Reference to the dataElement for which the
nt ototype InvalidationPolicy applies.
handleInva HandleInvalidEn 0..1 attr This attribute controls how invalidation is applied
lid um to the dataElement.

Table D.139: InvalidationPolicy

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Class McDataInstance
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport
Note Describes the specific properties of one data instance in order to support
measurement and/or calibration of this data instance.

The most important attributes are:

Its shortName is copied from the ECU Flat map (if applicable) and will be used
as identifier and for display by the MC system.
The category is copied from the corresponding data type (ApplicationDataType
if defined, otherwise ImplementationDataType) as far as applicable.
The symbol is the one used in the programming language. It will be used to
find out the actual memory address by the final generation tool with the help of
linker generated information.

It is assumed that in the M1 model this part and all the aggregated and referred
elements (with the exception of the Flat Map and the references from
ImplementationElementInParameterInstanceRef and McAccessDetails) are
completely generated from "upstream" information. This means, that even if an
element like e.g. a CompuMethod is only used via reference here, it will be copied into
the M1 artifact which holds the complete McSupportData for a given Implementation.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
arraySize PositiveInteger 0..1 attr The existence of this attribute turns the data
instance into an array of data. The attribute
determines the size of the array in terms of
number of elements.
displayIde McdIdentifier 0..1 attr An optional attribute to be used to set the ASAM
ntifier ASAP2 DISPLAY_IDENTIFIER attribute.
flatMapEnt FlatInstanceDes 0..1 ref Reference to the corresponding entry in the ECU
ry criptor Flat Map. This allows to trace back to the original
specification of the generated data instance. This
link shall be added by the RTE generator mainly
for documentation purposes.

The reference is optional because

The McDataInstance may represent an
array or struct in which only the
subElements correspond to FlatMap
entries.
The McDataInstance may represent a task
local buffer for rapid prototyping access
which is different from the "main instance"
used for measurement access.

instanceIn Implementation 0..1 aggr Reference to the corresponding data instance in

Memory ElementInPara the description of calibration data structures
meterInstanceR published by the RTE generator. This is used to
ef support emulation methods inside the ECU, it is
not required for A2L generation.

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Attribute Type Mul. Kind Note

mcDataAc McDataAccess 0..1 aggr Refers to "upstream" information on how the RTE
cessDetail Details uses this data instance. Use Case: Rapid
s Prototyping
mcDataAs RoleBasedMcD * aggr An assignment between McDataInstances. This
signment ataAssignment supports the indication of related McDataElement
implementing the of ?RP global buffer", ?RP
global measurement buffer", ?RP enabler flag".
resultingPr SwDataDefProp 0..1 aggr These are the generated properties resulting from
operties s decisions taken by the RTE generator for the
actually implemented data instance. Only those
properties are relevant here, which are needed for
the measurement and calibration system.
resultingR RptSwPrototypi 0..1 aggr Describes the implemented accessibility of data
ptSwProtot ngAccess and modes by the rapid prototyping tooling.
ypingAcce
ss
role Identifier 0..1 attr An optional attribute to be used for additional
information on the role of this data instance, for
example in the context of rapid prototyping.
rptImplPoli RptImplPolicy 0..1 aggr Describes the implemented code preparation for
cy rapid prototyping at data accesses for a hook
based bypassing.
subElemen McDataInstance * aggr This relation indicates, that the target element is
t (ordered) part of a "struct" which is given by the source
element. This information will be used by the final
generator to set up the correct addressing
scheme.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

symbol SymbolString 0..1 attr This String is used to determine the memory
address during final generation of the MC
configuration data (e.g. "A2L" file) . It shall be the
name of the element in the programming language
such that it can be identified in linker generated
information.

In case the McDataInstance is part of composite

data in the programming language, the symbol
String may include parts denoting the element
context, unless the context is given by the symbol
attribute of an enclosing McDataInstance. This
means in particular for the C language that the "."
character shall be used as a separator between
the name of a "struct" variable the name of one of
its elements.

The symbol can differ from the shortName in case

of generated C data declarations.

It is an optional attribute since it may be missing in

case the instance represents an element (e.g. a
single array element) which has no name in the
linker map.

Table D.140: McDataInstance

Class McParameterElementGroup
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport
Note Denotes a group of calibration parameters which are handled by the RTE as one data
structure.
Base ARObject
Attribute Type Mul. Kind Note
ramLocatio VariableDataPr 1 ref Refers to the RAM location of this parameter
n ototype group. To be used for the init-RAM method.
romLocatio ParameterData 1 ref Refers to the ROM location of this parameter
n Prototype group. To be used for the init-RAM method.
shortLabel Identifier 1 attr Assigns a name to this element.

Tags: xml.sequenceOffset=-100

Table D.141: McParameterElementGroup

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Class McSupportData
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport
Note Root element for all measurement and calibration support data related to one
Implementation artifact on an ECU. There shall be one such element related to the
RTE implementation (if it owns MC data) and a separate one for each module or
component, which owns private MC data.
Base ARObject
Attribute Type Mul. Kind Note
emulationS McSwEmulation * aggr Describes the calibration method used by the
upport MethodSupport RTE. This information is not needed for A2L
generation, but to setup software emulation in the
ECU.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
mcParame McDataInstance * aggr A data instance to be used for calibration.
terInstance
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=postBuild
mcVariable McDataInstance * aggr A data instance to be used for measurement.
Instance
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=postBuild
measurabl SwSystemconst * ref Sets of system constant values to be transferred
eSystemC antValueSet to the MCD system, because the system
onstantVal constants have been specified with
ues "swCalibrationAccess" = readonly.
rptSupport RptSupportData 0..1 aggr The rapid prototyping support data belonging to
Data this implementation. The aggregtion is
atpSplitable because in case of an already
exisiting BSW Implementation model, this
description will be added later in the process,
namely at code generation time.

Stereotypes: atpSplitable
Tags: atp.Splitkey=rptSupportData

Table D.142: McSupportData

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Class McSwEmulationMethodSupport
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport
Note This denotes the method used by the RTE to handle the calibration data. It is
published by the RTE generator and can be used e.g. to generate the corresponding
emulation method in a Complex Driver.

According to the actual method given by the category attribute, not all attributes are
always needed:
double pointered method: only baseReference is mandatory
single pointered method: only referenceTable is mandatory
initRam method: only elementGroup(s) are mandatory

Note: For single/double pointered method the group locations are implicitly accessed
via the reference table and their location can be found from the initial values in the M1
model of the respective pointers. Therefore, the description of elementGroups is not
needed in these cases. Likewise, for double pointered method the reference table
description can be accessed via the M1 model under baseReference.
Base ARObject
Attribute Type Mul. Kind Note
category Identifier 1 attr Identifies the actual method. The possible names
shall correspond to the symbols of the ECU
configuration parameter for the calibration method
of the RTE, and can include vendor specific
methods.

Tags: xml.sequenceOffset=-90
baseRefer VariableDataPr 0..1 ref Refers to the base pointer in case of the
ence ototype double-pointered method.
elementGr McParameterEl * aggr Denotes the grouping of calibration parameters in
oup ementGroup the actual RTE code. Depending on the category,
this information maybe required to set up the
emulation code.
referenceT VariableDataPr 0..1 ref Refers to the pointer table in case of the
able ototype single-pointered method.
shortLabel Identifier 1 attr Assigns a name to this element.

Tags: xml.sequenceOffset=-100

Table D.143: McSwEmulationMethodSupport

Enumeration MemoryAllocationKeywordPolicyType
Package M2::MSR::DataDictionary::AuxillaryObjects
Note Enumeration to specify the name pattern of the Memory Allocation Keyword.
Literal Description
addrMethod The MemorySection shortNames of referring MemorySections and therefore the
ShortName belonging Memory Allocation Keywords in the code are build with the shortName of
the SwAddrMethod. This is the default value if the attribute does not exist.

Tags: atp.EnumerationValue=0

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addrMethod The MemorySection shortNames of referring MemorySections and therefore the

ShortName belonging Memory Allocation Keywords in the code are build with the shortName of
AndAlign- the SwAddrMethod and a variable alignment postfix.
ment
Thereby the alignment postfix needs to be consistent with the alignment attribute of
the related MemorySection.

Tags: atp.EnumerationValue=1

Table D.144: MemoryAllocationKeywordPolicyType

Class MemorySection
Package M2::AUTOSARTemplates::CommonStructure::ResourceConsumption::Memory
SectionUsage
Note Provides a description of an abstract memory section used in the Implementation for
code or data. It shall be declared by the Implementation Description of the module or
component, which actually allocates the memory in its code. This means in case of
data prototypes which are allocated by the RTE, that the generated Implementation
Description of the RTE shall contain the corresponding MemorySections.

The attribute "symbol" (if symbol is missing: "shortName") defines the module or
component specific section name used in the code. For details see the document
"Specification of Memory Mapping". Typically the section name is build according the
pattern:

<SwAddrMethod shortName>[_<further specialization nominator>][_<alignment>]

where
[<SwAddrMethod shortName>] is the shortName of the referenced
SwAddrMethod
[_<further specialization nominator>] is an optional infix to indicate the
specialization in the case that several MemorySections for different purpose of
the same Implementation Description referring to the same or equally named
SwAddrMethods.
[_<alignment>] is the alignment attributes value and is only applicable in the
case that the memoryAllocationKeywordPolicy value of the referenced
SwAddrMethod is set to addrMethodShortNameAndAlignment

MemorySection used to Implement the code of RunnableEntitys and

BswSchedulableEntitys shall have a symbol (if missing: shortName) identical to the
referred SwAddrMethod to conform to the generated RTE header files.

In addition to the section name described above, a prefix is used in the corresponding
macro code in order to define a name space. This prefix is by default given by the
shortName of the BswModuleDescription resp. the SwComponentType. It can be
superseded by the prefix attribute.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
alignment AlignmentType 0..1 attr The attribute describes the alignment of objects
within this memory section.

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Attribute Type Mul. Kind Note

executable ExecutableEntit * ref Reference to the ExecutableEntitites located in
Entity y this section. This allows to locate different
ExecutableEntitities in different sections even if
the associated SwAddrmethod is the same.

This is applicable to code sections only.

memClass CIdentifier 0..1 attr Defines a specific symbol in order to generate the
Symbol compiler abstraction "memclass" code for this
MemorySection. The existence of this attribute
supersedes the usage of
swAddrmethod.shortName for this purpose.

The complete name of the "memclass"

preprocessor symbol is constructed as
<prefix>_<memClassSymbol> where prefix is
defined in the same way as for the enclosing
MemorySection. See also
AUTOSAR_SWS_CompilerAbstraction
SWS_COMPILER_00040.
option Identifier * attr This attribute introduces the ability to specify
further intended properties of this MemorySection.
The following two values are standardized (to be
used for code sections only and exclusively to
each other):
INLINE - The code section is declared with
the compiler abstraction macro INLINE.
LOCAL_INLINE - The code section is
declared with the compiler abstraction
macro LOCAL_INLINE

In both cases (INLINE and LOCAL_INLINE) the

inline expansion depends on the compiler specific
implementation of these macros. Depending on
this, the code section either corresponds to an
actual section in memory or is put into the section
of the caller. See
AUTOSAR_SWS_CompilerAbstraction for more
details.
prefix SectionNamePr 0..1 ref The prefix used to set the memory sections
efix namespace in the code. The existence of a prefix
element supersedes rules for a default prefix
(such as the BswModuleDescriptions
shortName). This allows the user to define several
name spaces for memory sections within the
scope of one module, cluster or SWC.
size PositiveInteger 0..1 attr The size in bytes of the section.

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Attribute Type Mul. Kind Note

swAddrmet SwAddrMethod 1 ref This association indicates that this module specific
hod (abstract) memory section is part of an overall
SwAddrMethod, referred by the upstream
declarations (e.g. calibration parameters, data
element prototypes, code entities) which share a
common addressing strategy. This can be
evaluated for the ECU configuration of the build
support.

This association shall always be declared by the

Implementation description of the module or
component, which allocates the memory in its
code. This means in case of data prototypes
which are allocated by the RTE, that the software
components only declare the grouping of its data
prototypes to SwAddrMethods, and the generated
Implementation Description of the RTE actually
sets up this association.
symbol Identifier 0..1 attr Defines the section name as explained in the main
description. By using this attribute for code
generation (instead of the shortName) it is
possible to define several different
MemorySections having the same name - e.g.
symbol = CODE - but using different
sectionNamePrefixes.

Table D.145: MemorySection

Class ModeAccessPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Mode
DeclarationGroup
Note A ModeAccessPoint is required by a RunnableEntity owned by a Mode Manager or
Mode User. Its semantics implies the ability to access the current mode (provided by
the RTE) of a ModeDeclarationGroupPrototypes ModeDeclarationGroup.
Base ARObject
Attribute Type Mul. Kind Note
ident ModeAccessPoi 0..1 aggr The aggregation in the role ident provides the
ntIdent ability to make the ModeAccessPoint identifiable.

From the semantical point of view, the

ModeAccessPoint is considered a first-class
Identifiable and therefore the aggregation in the
role ident shall always exist (until it may be
possible to let ModeAccessPoint directly inherit
from Identifiable).

Tags: atp.Status=shallBecomeMandatory
xml.sequenceOffset=-100
modeGrou ModeDeclaratio 0..1 iref The mode declaration group that is accessed by
p nGroupPrototyp this runnable.
e
Tags: xml.typeElement=true

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Attribute Type Mul. Kind Note

Table D.146: ModeAccessPoint

Enumeration ModeActivationKind
Package M2::AUTOSARTemplates::CommonStructure::ModeDeclaration
Note Kind of mode switch condition used for activation of an event, as further described
for each enumeration field.
Literal Description
onEntry On entering the referred mode.

Tags: atp.EnumerationValue=0
onExit On exiting the referred mode.

Tags: atp.EnumerationValue=1
onTransition On transition of the 1st referred mode to the 2nd referred mode.

Tags: atp.EnumerationValue=2

Table D.147: ModeActivationKind

Class ModeDeclaration
Package M2::AUTOSARTemplates::CommonStructure::ModeDeclaration
Note Declaration of one Mode. The name and semantics of a specific mode is not defined
in the meta-model.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
value PositiveInteger 0..1 attr The RTE shall take the value of this attribute for
generating the source code representation of this
ModeDeclaration.

Table D.148: ModeDeclaration

Class ModeDeclarationGroup
Package M2::AUTOSARTemplates::CommonStructure::ModeDeclaration
Note A collection of Mode Declarations. Also, the initial mode is explicitly identified.

Tags: atp.recommendedPackage=ModeDeclarationGroups
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement,
Referrable
Attribute Type Mul. Kind Note
initialMode ModeDeclaratio 1 ref The initial mode of the ModeDeclarationGroup.
n This mode is active before any mode switches
occurred.

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Attribute Type Mul. Kind Note

modeDecl ModeDeclaratio 1..* aggr The ModeDeclarations collected in this
aration n ModeDeclarationGroup.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=blueprintDerivation
Time
modeMana ModeErrorBeha 0..1 aggr This represents the ability to define the error
gerErrorBe vior behavior expected by the mode manager in case
havior of errors on the mode user side (e.g. terminated
mode user).
modeTran ModeTransition * aggr This represents the avaliable ModeTransitions of
sition the ModeDeclarationGroup
modeUser ModeErrorBeha 0..1 aggr This represents the definition of the error behavior
ErrorBeha vior expected by the mode user in case of errors on
vior the mode manager side (e.g. terminated mode
manager).
onTransitio PositiveInteger 0..1 attr The value of this attribute shall be taken into
nValue account by the RTE generator for
programmatically representing a value used for
the transition between two statuses.

Table D.149: ModeDeclarationGroup

Class ModeDeclarationGroupPrototype
Package M2::AUTOSARTemplates::CommonStructure::ModeDeclaration
Note The ModeDeclarationGroupPrototype specifies a set of Modes
(ModeDeclarationGroup) which is provided or required in the given context.
Base ARObject, AtpFeature, AtpPrototype, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note
swCalibrati SwCalibrationA 0..1 attr This allows for specifying whether or not the
onAccess ccessEnum enclosing ModeDeclarationGroupPrototype can
be measured at run-time.
type ModeDeclaratio 1 tref The "collection of ModeDeclarations" ( =
nGroup ModeDeclarationGroup) supported by a
component

Stereotypes: isOfType

Table D.150: ModeDeclarationGroupPrototype

Class ModeDeclarationMappingSet
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note This meta-class implements a container for ModeDeclarationGroupMappings

Tags: atp.recommendedPackage=PortInterfaceMappingSets
Base ARElement, ARObject, AtpClassifier, AtpType, CollectableElement, Identifiable,
MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

modeDecl ModeDeclaratio 1..* aggr This represents the collection of
arationMap nMapping ModeDeclarationMappings owned by the
ping enclosing ModeDeclarationMappingSet.

Table D.151: ModeDeclarationMappingSet

Class ModeErrorBehavior
Package M2::AUTOSARTemplates::CommonStructure::ModeDeclaration
Note This represents the ability to define the error behavior in the context of mode handling.
Base ARObject
Attribute Type Mul. Kind Note
defaultMod ModeDeclaratio 0..1 ref This represents the ModeDeclaration that is
e n considered the error mode in the context of the
enclosing ModeDeclarationGroup.
errorReacti ModeErrorReac 1 attr This represents the ability to define the policy in
onPolicy tionPolicyEnum terms of which default model shall apply in case
an error occurs.

Table D.152: ModeErrorBehavior

Enumeration ModeErrorReactionPolicyEnum
Package M2::AUTOSARTemplates::CommonStructure::ModeDeclaration
Note This represents the ability to specify the reaction on a mode error.
Literal Description
defaultMode This represents the ability to switch to the defaultMode in case of a mode error.

Tags: atp.EnumerationValue=0
lastMode This represents the ability to keep the last mode in case of a mode error.

Tags: atp.EnumerationValue=1

Table D.153: ModeErrorReactionPolicyEnum

Class ModeInterfaceMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Defines the mapping of ModeDeclarationGroupPrototypes in context of two different
ModeInterfaces.
Base ARObject, AtpBlueprint, AtpBlueprintable, Identifiable, MultilanguageReferrable, Port
InterfaceMapping, Referrable
Attribute Type Mul. Kind Note
modeMapp ModeDeclaratio 1 aggr Mapping of two ModeDeclarationGroupPrototypes
ing nGroupPrototyp in two different ModeInterfaces
eMapping

Table D.154: ModeInterfaceMapping

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Class ModeRequestTypeMap
Package M2::AUTOSARTemplates::CommonStructure::ModeDeclaration
Note Specifies a mapping between a ModeDeclarationGroup and an
ImplementationDataType. This ImplementationDataType shall be used to implement
the ModeDeclarationGroup.
Base ARObject
Attribute Type Mul. Kind Note
implement Implementation 1 ref This is the corresponding
ationDataT DataType ImplementationDataType. It shall be modeled
ype along the idea of an "unsigned integer-like" data
type.
modeGrou ModeDeclaratio 1 ref This is the corresponding ModeDeclarationGroup.
p nGroup

Table D.155: ModeRequestTypeMap

Class ModeSwitchInterface
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note A mode switch interface declares a ModeDeclarationGroupPrototype to be sent and
received.

Tags: atp.recommendedPackage=PortInterfaces
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement, Port
Interface, Referrable
Attribute Type Mul. Kind Note
modeGrou ModeDeclaratio 1 aggr The ModeDeclarationGroupPrototype of this mode
p nGroupPrototyp interface.
e

Table D.156: ModeSwitchInterface

Class ModeSwitchPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Mode
DeclarationGroup
Note A ModeSwitchPoint is required by a RunnableEntity owned a Mode Manager. Its
semantics implies the ability to initiate a mode switch.
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
modeGrou ModeDeclaratio 0..1 iref The mode declaration group that is switched by
p nGroupPrototyp this runnable.
e

Table D.157: ModeSwitchPoint

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Class ModeSwitchReceiverComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes of RPortPrototypes with respect to mode communication
Base ARObject, RPortComSpec
Attribute Type Mul. Kind Note
enhanced Boolean 0..1 attr This controls the creation of the enhanced mode
ModeApi API that returns information about the previous
mode and the next mode. If set to "true" the
enhanced mode API is supposed to be generated.
For more details please refer to the SWS_RTE.
modeGrou ModeDeclaratio 0..1 ref ModeDeclarationGroupPrototype (of the same
p nGroupPrototyp PortInterface) to which these communication
e attributes apply.

Tags: atp.Status=shallBecomeMandatory
supportsAs Boolean 1 attr This attribute controls the behavior of the
ynchronou corresponding RPortPrototype with respect to the
sModeSwit question whether it can deal with asynchronous
ch mode switch requests, i.e. if set to true, the
RPortPrototype is able to deal with an
asynchronous mode switch request.

Table D.158: ModeSwitchReceiverComSpec

Class ModeSwitchSenderComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes of PPortPrototypes with respect to mode communication
Base ARObject, PPortComSpec
Attribute Type Mul. Kind Note
enhanced Boolean 0..1 attr This controls the creation of the enhanced mode
ModeApi API that returns information about the previous
mode and the next mode. If set to "true" the
enhanced mode API is supposed to be generated.
For more details please refer to the SWS_RTE.
modeGrou ModeDeclaratio 1 ref ModeDeclarationGroupPrototype (of the same
p nGroupPrototyp PortInterface) to which these communication
e attributes apply.
modeSwitc ModeSwitchedA 0..1 aggr If this aggregation exists an acknowledgement for
hedAck ckRequest the successful processing of the mode switch
request is required.
queueLeng PositiveInteger 1 attr Length of call queue on the mode user side. The
th queue is implemented by the RTE. The value shall
be greater or equal to 1. Setting the value of
queueLength to 1 implies that incoming requests
are rejected while another request that arrived
earlier is being processed.

Table D.159: ModeSwitchSenderComSpec

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Class ModeSwitchedAckEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note The event is raised when the referenced modes have been received or an error
occurs.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
eventSour ModeSwitchPoi 1 ref Mode switch point that triggers the event.
ce nt

Table D.160: ModeSwitchedAckEvent

Class ModeSwitchedAckRequest
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Requests acknowledgements that a mode switch has been proceeded successfully
Base ARObject
Attribute Type Mul. Kind Note
timeout TimeValue 1 attr Number of seconds before an error is reported or
in case of allowed redundancy, the value is sent
again.

Table D.161: ModeSwitchedAckRequest

Class NonqueuedReceiverComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes specific to non-queued receiving.
Base ARObject, RPortComSpec, ReceiverComSpec
Attribute Type Mul. Kind Note
aliveTimeo TimeValue 1 attr Specify the amount of time (in seconds) after
ut which the software component (via the RTE)
needs to be notified if the corresponding data item
have not been received according to the specified
timing description.

If the aliveTimeout attribute is 0 no timeout

monitoring shall be performed.
enableUpd Boolean 1 attr This attribute controls whether application code is
ate entitled to check whether the value of the
corresponding VariableDataPrototype has been
updated.
filter DataFilter 0..1 aggr The applicable filter algorithm for filtering the value
of the corresponding dataElement.
handleDat Boolean 0..1 attr If this attribute is set to true than the Rte_IStatus
aStatus API shall exist. If the attribute does not exist or is
set to false then the Rte_IStatus API may still exist
in response to the existence of further conditions.

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Attribute Type Mul. Kind Note

handleNev Boolean 1 attr This attribute specifies whether for the
erReceive corresponding VariableDataPrototype the "never
d received" flag is available. If yes, the RTE is
supposed to assume that initially the
VariableDataPrototype has not been received
before. After the first reception of the
corresponding VariableDataPrototype the flag is
cleared.
If the value of this attribute is set to "true"
the flag is required.
If set to "false", the RTE shall not support
the "never received" functionality for the
corresponding VariableDataPrototype.

handleTim HandleTimeout 1 attr This attribute controls the behavior with respect to
eoutType Enum the handling of timeouts.
initValue ValueSpecificati 0..1 aggr Initial value to be used in case the sending
on component is not yet initialized. If the sender also
specifies an initial value the receivers value will be
used.
timeoutSu ValueSpecificati 0..1 aggr This attribute represents the substitution value
bstitutionV on applicable in the case of a timeout.
alue

Table D.162: NonqueuedReceiverComSpec

Class NonqueuedSenderComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes for non-queued sender/receiver communication (sender
side)
Base ARObject, PPortComSpec, SenderComSpec
Attribute Type Mul. Kind Note
initValue ValueSpecificati 1 aggr Initial value to be sent if sender component is not
on yet fully initialized, but receiver needs data already.

Table D.163: NonqueuedSenderComSpec

Class NumericalRuleBasedValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note This meta-class is used to support a rule-based initialization approach for data types
with an array-nature (ImplementationDataType of category ARRAY).
Base ARObject, AbstractRuleBasedValueSpecification, ValueSpecification
Attribute Type Mul. Kind Note
ruleBased RuleBasedValu 1 aggr This represents the rule based value specification
Values eSpecification for the array.

Tags: xml.roleElement=true; xml.roleWrapper

Element=false; xml.typeWrapperElement=false

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Attribute Type Mul. Kind Note

Table D.164: NumericalRuleBasedValueSpecification

Class NumericalValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note A numerical ValueSpecification which is intended to be assigned to a Primitive data
element. Note that the numerical value is a variant, it can be computed by a formula.
Base ARObject, ValueSpecification
Attribute Type Mul. Kind Note
value Numerical 1 attr This is the value itself.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.165: NumericalValueSpecification

Class NvBlockDataMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::NvBlockComponent
Note Defines the mapping between the VariableDataPrototypes in the
NvBlockComponents ports and the VariableDataPrototypes of the RAM Block.

The data types of the referenced VariableDataPrototypes in the ports and the
referenced sub-element (inside a CompositeDataType) of the VariableDataPrototype
representing the RAM Block shall be compatible.
Base ARObject
Attribute Type Mul. Kind Note
nvRamBlo AutosarVariable 1 aggr Reference to a VariableDataPrototype of a RAM
ckElement Ref Block.
readNvDat AutosarVariable 0..1 aggr Reference to a VariableDataPrototype of a pPort
a Ref of the NvBlockComponent providing read access
to the RAM Block.If there is no PortPrototype
providing read access (write-only) the reference
can be omitted.
writtenNvD AutosarVariable 0..1 aggr Reference to a VariableDataPrototype of a rPort of
ata Ref the NvBlockComponent providing write access to
the RAM Block. If there is no port providing write
access (read-only) the reference can be omitted.
writtenRea AutosarVariable 0..1 aggr Reference to a VariableDataPrototype of a
dNvData Ref PRPortPrototype of the
NvBlockSwComponentType providing write and
read access to the RAM Block.

Table D.166: NvBlockDataMapping

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Class NvBlockDescriptor
Package M2::AUTOSARTemplates::SWComponentTemplate::NvBlockComponent
Note Specifies the properties of exactly on NVRAM Block.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
clientServe RoleBasedPort * aggr The RoleBasedPortAssignement defines which
rPort Assignment client server port of the
NvBlockSwComponentType serves for which kind
of service or notification. In case of notifications
one common callback function is provided by the
RTE for each individual kind of notification defined
by the "role".

The aggregation of RoleBasedPortAssignment is

subject to variability with the purpose to support
the conditional existence of ports.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
constantVa ConstantSpecifi * ref Reference to the ConstanSpecificationMapping to
lueMappin cationMappingS be applied for the particular NVRAM Block
g et
Stereotypes: atpSplitable
Tags: atp.Splitkey=constantValueMapping
dataTypeM DataTypeMappi * ref Reference to the DataTypeMapping to be applied
apping ngSet for the particular NVRAM Block.

Stereotypes: atpSplitable
Tags: atp.Splitkey=dataTypeMapping
instantiatio InstantiationDat * aggr The purpose of InstantiationDataDefProps are the
nDataDefP aDefProps refinement of some data def properties of
rops individual instantiations within the context of a
NvBlockSwComponentType.

The aggregation of InstantiationDataDefProps is

subject to variability with the purpose to support
the conditional existence of ports, component
internal memory objects and those attributes.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
modeSwitc ModeSwitchEve * aggr This represents the collection of
hEventTrig ntTriggeredActiv ModeSwitchEventTriggeredActivities related to the
geredActivi ity enclosing NvBlockDescriptor.
ty
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=modeSwitchEventTriggered
Activity, variationPoint.shortLabel
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

nvBlockDa NvBlockDataMa 1..* aggr Defines the mapping between the
taMapping pping VariableDataPrototypes in the
NvBlockComponents ports and the
VariableDataPrototypes of the RAM Block.

The aggregation of NvBlockDataMapping is

subject to variability with the purpose to support
the conditional existence of nv data ports.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
nvBlockNe NvBlockNeeds 1 aggr Specifies the abstract needs on the configuration
eds of the NVRAM Manager for the single NVRAM
Block described by this NvBlockDescriptor.

In addition, it may define requirements for writing

strategies in an implementation of an
NvBlockSwComponentType by the RTE.

Please note that the attributes nDataSets and

nRomBlocks are not relevant for this aggregation
because the RTE will allocate just one block
anyway. In a different context, however, they do
make sense.
ramBlock VariableDataPr 1 aggr Defines the RAM Block of the NVRAM Block
ototype provided by NvBlockSwComponentType.
romBlock ParameterData 0..1 aggr Defines the ROM Block of the NVRAM Block
Prototype provided by NvBlockSwComponentType.
supportDirt Boolean 0..1 attr Specifies whether calling of NvM functions for
yFlag writing and/or status control of potentially modified
RAM Blocks to NV memory shall be controlled by
the RTE.
timingEven TimingEvent 0..1 ref this reference can be taken to identify the
t TimingEvent to be used by the RTE for
implementing a cyclic writing strategy for this block

Table D.167: NvBlockDescriptor

Class NvBlockNeeds
Package M2::AUTOSARTemplates::CommonStructure::ServiceNeeds
Note Specifies the abstract needs on the configuration of a single NVRAM Block.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable, ServiceNeeds
Attribute Type Mul. Kind Note
calcRamBl Boolean 0..1 attr Defines if CRC (re)calculation for the permanent
ockCrc RAM Block is required.
checkStati Boolean 0..1 attr Defines if the Static Block Id check shall be
cBlockId enabled.
cyclicWritin TimeValue 0..1 attr This represents the period for cyclic writing of
gPeriod NvData to store the associated RAM Block.

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Attribute Type Mul. Kind Note

nDataSets PositiveInteger 0..1 attr Number of data sets to be provided by the
NVRAM manager for this block. This is the total
number of ROM Blocks and RAM Blocks.
nRomBloc PositiveInteger 0..1 attr Number of ROM Blocks to be provided by the
ks NVRAM manager for this block. Please note that
these multiple ROM Blocks are given in a
contiguous area.
ramBlockS RamBlockStatu 0..1 attr This attribute defines how the management of the
tatusContr sControlEnum RAM Block status is controlled.
ol
readonly Boolean 0..1 attr True: data of this NVRAM Block are write
protected for normal operation (but protection can
be disabled) false: no restriction
reliability NvBlockNeedsR 0..1 attr Reliability against data loss on the non-volatile
eliabilityEnum medium.
resistantTo Boolean 0..1 attr Defines whether an NVRAM Block shall be treated
ChangedS resistant to configuration changes (true) or not
w (false). For details how to handle initialization in
the latter case, please refer to the NVRAM
specification.
restoreAtSt Boolean 0..1 attr Defines whether the associated RAM Block shall
art be implicitly restored during startup by the basic
software.
selectBloc Boolean 0..1 attr If this attribute is set to true the NvM shall process
kForFirstIni this block in the NvM_FirstInitAll() function.
tAll
storeAtShu Boolean 0..1 attr Defines whether or not the associated RAM Block
tdown shall be implicitly stored during shutdown by the
basic software.
storeCyclic Boolean 0..1 attr Defines whether or not the associated RAM Block
shall be implicitly stored periodically by the basic
software.
storeEmer Boolean 0..1 attr Defines whether or not the associated RAM Block
gency shall be implicitly stored in case of ECU failure
(e.g. loss of power) by the basic software. If the
attribute storeEmergency is set to true the
associated RAM Block shall be configured to have
immediate priority.
storeImme Boolean 0..1 attr Defines whether or not the associated RAM Block
diate shall be implicitly stored immediately during or
after execution of the according SW-C
RunnableEntity by the basic software.
useAutoVa Boolean 0..1 attr If set to true the RAM Block shall be auto validated
lidationAtS during shutdown phase.
hutDown
useCRCC Boolean 0..1 attr If set to true the CRC of the RAM Block shall be
ompMecha compared during a write job with the CRC which
nism was calculated during the last successful read or
write job in order to skip unnecessary NVRAM
writings.

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Attribute Type Mul. Kind Note

writeOnlyO Boolean 0..1 attr Defines write protection after first write: true: This
nce block is prevented from being changed/erased or
being replaced with the default ROM data after
first initialization by the software-component.
false: No such restriction.
writeVerific Boolean 0..1 attr Defines if Write Verification shall be enabled for
ation this NVRAM Block.
writingFreq PositiveInteger 0..1 attr Provides the amount of updates to this block from
uency the application point of view. It has to be provided
in "number of write access per year".
writingPrior NvBlockNeeds 0..1 attr Requires the priority of writing this block in case of
ity WritingPriorityE concurrent requests to write other blocks.
num

Table D.168: NvBlockNeeds

Class NvBlockSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note The NvBlockSwComponentType defines non volatile data which data can be shared
between SwComponentPrototypes. The non volatile data of the
NvBlockSwComponentType are accessible via provided and required ports.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtomicSwComponentType, AtpBlueprint, AtpBlueprintable,
AtpClassifier, AtpType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable, SwComponentType
Attribute Type Mul. Kind Note
nvBlockDe NvBlockDescrip * aggr Specification of the properties of exactly one
scriptor tor NVRAM Block.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

Table D.169: NvBlockSwComponentType

Class NvDataInterface
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note A non volatile data interface declares a number of VariableDataPrototypes to be
exchanged between non volatile block components and atomic software components.

Tags: atp.recommendedPackage=PortInterfaces
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, DataInterface, Identifiable, MultilanguageReferrable,
PackageableElement, PortInterface, Referrable
Attribute Type Mul. Kind Note
nvData VariableDataPr 1..* aggr The VariableDataPrototype of this nv data
ototype interface.

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Attribute Type Mul. Kind Note

Table D.170: NvDataInterface

Class NvRequireComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes of RPortPrototypes with respect to Nv data communication
on the required side.
Base ARObject, RPortComSpec
Attribute Type Mul. Kind Note
initValue ValueSpecificati 0..1 aggr The initial value owned by the NvComSpec
on
variable VariableDataPr 1 ref The VariableDataPrototype the ComSpec applies
ototype for.

Table D.171: NvRequireComSpec

Class OperationInvokedEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note The OperationInvokedEvent references the ClientServerOperation invoked by the
client.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
operation ClientServerOp 0..1 iref The operation to be executed as the consequence
eration of the event.

Table D.172: OperationInvokedEvent

Class PPortPrototype
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note Component port providing a certain port interface.
Base ARObject, AbstractProvidedPortPrototype, AtpBlueprintable, AtpFeature, Atp
Prototype, Identifiable, MultilanguageReferrable, PortPrototype, Referrable
Attribute Type Mul. Kind Note
providedInt PortInterface 1 tref The interface that this port provides.
erface
Stereotypes: isOfType

Table D.173: PPortPrototype

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Class PRPortPrototype
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note This kind of PortPrototype can take the role of both a required and a provided
PortPrototype.
Base ARObject, AbstractProvidedPortPrototype, AbstractRequiredPortPrototype, Atp
Blueprintable, AtpFeature, AtpPrototype, Identifiable, MultilanguageReferrable, Port
Prototype, Referrable
Attribute Type Mul. Kind Note
providedR PortInterface 1 tref This represents the PortInterface used to type the
equiredInte PRPortPrototype
rface
Stereotypes: isOfType

Table D.174: PRPortPrototype

Class ParameterAccess
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Data
Elements
Note The presence of a ParameterAccess implies that a RunnableEntity needs access to a
ParameterDataPrototype.
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
accessedP AutosarParamet 1 aggr Refernce to the accessed calibration parameter.
arameter erRef
swDataDef SwDataDefProp 0..1 aggr This allows denote instance and access specific
Props s properties, mainly input values and common axis.

Table D.175: ParameterAccess

Class ParameterDataPrototype
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::DataPrototypes
Note A parameter element used for parameter interface and internal behavior, supporting
signal like parameter and characteristic value communication patterns and parameter
and characteristic value definition.
Base ARObject, AtpFeature, AtpPrototype, AutosarDataPrototype, DataPrototype,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
initValue ValueSpecificati 0..1 aggr Specifies initial value(s) of the
on ParameterDataPrototype

Table D.176: ParameterDataPrototype

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Class ParameterInterface
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note A parameter interface declares a number of parameter and characteristic values to be
exchanged between parameter components and software components.

Tags: atp.recommendedPackage=PortInterfaces
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, DataInterface, Identifiable, MultilanguageReferrable,
PackageableElement, PortInterface, Referrable
Attribute Type Mul. Kind Note
parameter ParameterData 1..* aggr The ParameterDataPrototype of this
Prototype ParameterInterface.

Table D.177: ParameterInterface

Class ParameterProvideComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note "Communication" specification that applies to parameters on the provided side of a
connection.
Base ARObject, PPortComSpec
Attribute Type Mul. Kind Note
initValue ValueSpecificati 0..1 aggr The initial value applicable for the corresponding
on ParameterDataPrototype.
parameter ParameterData 1 ref The ParameterDataPrototype to which the
Prototype ParameterComSpec applies.

Table D.178: ParameterProvideComSpec

Class ParameterRequireComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note "Communication" specification that applies to parameters on the required side of a
connection.
Base ARObject, RPortComSpec
Attribute Type Mul. Kind Note
initValue ValueSpecificati 0..1 aggr The initial value applicable for the corresponding
on ParameterDataPrototype.
parameter ParameterData 1 ref The ParameterDataPrototype to which the
Prototype ParameterRequireComSpec applies.

Table D.179: ParameterRequireComSpec

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Class ParameterSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note The ParameterSwComponentType defines parameters and characteristic values
accessible via provided Ports. The provided values are the same for all connected
SwComponentPrototypes

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement,
Referrable, SwComponentType
Attribute Type Mul. Kind Note
constantM ConstantSpecifi * ref Reference to the ConstanSpecificationMapping to
apping cationMappingS be applied for the particular
et ParameterSwComponentType

Stereotypes: atpSplitable
Tags: atp.Splitkey=constantMapping
dataTypeM DataTypeMappi * ref Reference to the DataTypeMapping to be applied
apping ngSet for the particular ParameterSwComponentType

Stereotypes: atpSplitable
Tags: atp.Splitkey=dataTypeMapping
instantiatio InstantiationDat * aggr The purpose of this is that within the context of a
nDataDefP aDefProps given SwComponentType some data def
rops properties of individual instantiations can be
modified.

The aggregation of InstantiationDataDefProps is

subject to variability with the purpose to support
the conditional existence of PortPrototypes

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.180: ParameterSwComponentType

Class PerInstanceMemory
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Per
InstanceMemory
Note Defines a C typed memory-block that needs to be available for each instance of the
SW-component. This is typically only useful if supportsMultipleInstantiation is set to
"true" or if the software-component defines NVRAM access via permanent blocks.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
initValue String 0..1 attr Specifies initial value(s) of the PerInstanceMemory
swDataDef SwDataDefProp 0..1 aggr This represents the ability to to allocate RAM at
Props s specific memory sections, for example, to support
the RAM Block recovery strategy by mapping to
uninitialized RAM.
type CIdentifier 1 attr The name of the "C"-type

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Attribute Type Mul. Kind Note

typeDefiniti String 1 attr A definition of the type with the syntax of a C
on typedef.

Table D.181: PerInstanceMemory

Class PortAPIOption
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::PortAPI
Options
Note Options how to generate the signatures of calls for an AtomicSwComponentType in
order to communicate over a PortPrototype (for calls into a RunnableEntity as well as
for calls from a RunnableEntity to the PortPrototype).
Base ARObject
Attribute Type Mul. Kind Note
enableTak Boolean 1 attr If set to true, the software-component is able to
eAddress use the API reference for deriving a pointer to an
object.
errorHandli DataTransforma 0..1 attr This specifies whether the RunnableEntitys which
ng tionErrorHandlin access a PortPrototype that it referenced by this
gEnum PortAPIOption shall specifically handle
transformer errors or not.
indirectAPI Boolean 1 attr If set to true this attribute specifies an "indirect
API" to be generated for the associated port which
means that the SWC is able to access the actions
on a port via a pointer to an object representing a
port. This allows e.g. iterating over ports in a loop.
This option has no effect for PPortPrototypes of
client/server interfaces.
port PortPrototype 1 ref The option is valid for generated functions related
to communication over this port
portAr PortDefinedArg * aggr An argument value defined by this port.
gValue umentValue
(ordered)
supported SwcSupportedF * aggr This collection specifies which features are
Feature eature supported by the RunnableEntitys which access a
PortPrototype that it referenced by this
PortAPIOption.

Table D.182: PortAPIOption

Class PortDefinedArgumentValue
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::PortAPI
Options
Note A PortDefinedArgumentValue is passed to a RunnableEntity dealing with the
ClientServerOperations provided by a given PortPrototype. Note that this is restricted
to PPortPrototypes of a ClientServerInterface.
Base ARObject
Attribute Type Mul. Kind Note
value ValueSpecificati 1 aggr Specifies the actual value.
on

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Attribute Type Mul. Kind Note

valueType Implementation 1 tref The implementation type of this argument value. It
DataType should not be composite type or a pointer.

Stereotypes: isOfType

Table D.183: PortDefinedArgumentValue

Class PortInterface (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Abstract base class for an interface that is either provided or required by a port of a
software component.
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement,
Referrable
Attribute Type Mul. Kind Note
isService Boolean 1 attr This flag is set if the PortInterface is to be used for
communication between an
ApplicationSwComponentType or
ServiceProxySwComponentType or
SensorActuatorSwComponentType or
ComplexDeviceDriverSwComponentType
ServiceSwComponentType
EcuAbstractionSwComponentType

and a ServiceSwComponentType (namely an

AUTOSAR Service) located on the same ECU.
Otherwise the flag is not set.
serviceKin ServiceProvider 0..1 attr This attribute provides further details about the
d Enum nature of the applied service.

Table D.184: PortInterface

Class PortInterfaceMapping (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Specifies one PortInterfaceMapping to support the connection of Ports typed by two
different PortInterfaces with PortInterface elements having unequal names and/or
unequal semantic (resolution or range).
Base ARObject, AtpBlueprint, AtpBlueprintable, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note

Table D.185: PortInterfaceMapping

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Class PortPrototype (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note Base class for the ports of an AUTOSAR software component.

The aggregation of PortPrototypes is subject to variability with the purpose to support

the conditional existence of ports.
Base ARObject, AtpBlueprintable, AtpFeature, AtpPrototype, Identifiable, Multilanguage
Referrable, Referrable
Attribute Type Mul. Kind Note
clientServe ClientServerAnn * aggr Annotation of this PortPrototype with respect to
rAnnotatio otation client/server communication.
n
delegated DelegatedPortA 0..1 aggr Annotations on this delegated port.
PortAnnota nnotation
tion
ioHwAbstr IoHwAbstraction * aggr Annotations on this IO Hardware Abstraction port.
actionServ ServerAnnotatio
erAnnotati n
on
modePortA ModePortAnnot * aggr Annotations on this mode port.
nnotation ation
nvDataPort NvDataPortAnn * aggr Annotations on this non voilatile data port.
Annotation otation
parameter ParameterPortA * aggr Annotations on this parameter port.
PortAnnota nnotation
tion
senderRec SenderReceiver * aggr Collection of annotations of this ports
eiverAnnot Annotation sender/receiver communication.
ation
triggerPort TriggerPortAnn * aggr Annotations on this trigger port.
Annotation otation

Table D.186: PortPrototype

Class PostBuildVariantCondition
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This class specifies the value which must be assigned to a particular variant criterion
in order to bind the variation point. If multiple criterion/value pairs are specified, they
shall all match to bind the variation point.

In other words binding can be represented by

(criterion1 == value1) && (condition2 == value2) ...

Base ARObject
Attribute Type Mul. Kind Note
matchingC PostBuildVarian 1 ref This is the criterion which needs to match the
riterion tCriterion value in order to make the
PostbuildVariantCondition to be true.

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Attribute Type Mul. Kind Note

value Integer 1 attr This is the particular value of the post-build variant
criterion.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.187: PostBuildVariantCondition

Class PostBuildVariantCriterion
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This class specifies one particular PostBuildVariantSelector.

Tags: atp.recommendedPackage=PostBuildVariantCriterions
Base ARElement, ARObject, AtpDefinition, CollectableElement, Identifiable, Multilanguage
Referrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
compuMet CompuMethod 1 ref The compuMethod specifies the possible values
hod for the variant criterion serving as an enumerator.

Table D.188: PostBuildVariantCriterion

Class PostBuildVariantCriterionValue
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This class specifies a the value which must be assigned to a particular variant
criterion in order to bind the variation point. If multiple criterion/value pairs are
specified, they all must must match to bind the variation point.
Base ARObject
Attribute Type Mul. Kind Note
annotation Annotation * aggr This provides the ability to add information why
the value is set like it is.

Tags: xml.sequenceOffset=30
value Integer 1 attr This is the particular value of the post-build variant
criterion.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=20
variantCrit PostBuildVarian 1 ref This association selects the variant criterion
erion tCriterion whose value is specified.

Tags: xml.sequenceOffset=10

Table D.189: PostBuildVariantCriterionValue

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Class PostBuildVariantCriterionValueSet
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This meta-class represents the ability to denote one set of
postBuildVariantCriterionValues.

Tags: atp.recommendedPackage=PostBuildVariantCriterionValueSets
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
postBuildV PostBuildVarian * aggr This is is one particular postbuild variant
ariantCriter tCriterionValue criterion/value pair being part of the
ionValue PostBuildVariantSet.

Table D.190: PostBuildVariantCriterionValueSet

Class PredefinedVariant
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This specifies one predefined variant. It is characterized by the union of all system
constant values and post-build variant criterion values aggregated within all
referenced system constant value sets and post build variant criterion value sets plus
the value sets of the included variants.

Tags: atp.recommendedPackage=PredefinedVariants
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
includedVa PredefinedVaria * ref The associated variants are considered part of
riant nt this PredefinedVariant. This means the settings of
the included variants are included in the settings
of the referencing PredefinedVariant.
Nevertheless the included variants might be
included in several predefined variants.
postBuildV PostBuildVarian * ref This is the postBuildVariantCriterionValueSet
ariantCriter tCriterionValueS contributing to the predefinded variant.
ionValueS et
et
swSystem SwSystemconst * ref This ist the set of Systemconstant Values
constantVa antValueSet contributing to the predefined variant.
lueSet

Table D.191: PredefinedVariant

Class QueuedReceiverComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes specific to queued receiving.
Base ARObject, RPortComSpec, ReceiverComSpec
Attribute Type Mul. Kind Note
queueLeng PositiveInteger 1 attr Length of queue for received events.
th

Table D.192: QueuedReceiverComSpec

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Class QueuedSenderComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes specific to distribution of events (PPortPrototype,
SenderReceiverInterface and dataElement carries an "event").
Base ARObject, PPortComSpec, SenderComSpec
Attribute Type Mul. Kind Note

Table D.193: QueuedSenderComSpec

Class RPortPrototype
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note Component port requiring a certain port interface.
Base ARObject, AbstractRequiredPortPrototype, AtpBlueprintable, AtpFeature, Atp
Prototype, Identifiable, MultilanguageReferrable, PortPrototype, Referrable
Attribute Type Mul. Kind Note
requiredInt PortInterface 1 tref The interface that this port requires, i.e. the port
erface depends on another port providing the specified
interface.

Stereotypes: isOfType

Table D.194: RPortPrototype

Class RTEEvent (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note Abstract base class for all RTE-related events
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
disabledM ModeDeclaratio * iref Reference to the Modes that disable the Event.
ode n
Stereotypes: atpSplitable
Tags: atp.Splitkey=contextPort, contextMode
DeclarationGroupPrototype, targetMode
Declaration
startOnEve RunnableEntity 0..1 ref RunnableEntity starts when the corresponding
nt RTEEvent occurs.

Table D.195: RTEEvent

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Class RapidPrototypingScenario
Package M2::AUTOSARTemplates::SWComponentTemplate::RPTScenario
Note This meta class provides the ability to describe a Rapid Prototyping Scenario. Such a
Rapid Prototyping Scenario consist out of two main aspects, the description of the
byPassPoints and the relation to an rptHook.

Tags: atp.recommendedPackage=RapidPrototypingScenarios
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
hostSyste System 1 ref System which describes the software components
m of the host ECU.
rptContain RptContainer 1..* aggr Top-level rptContainer definitions of this specific
er rapid prototyping scenario.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
rptProfile RptProfile * aggr Defiens the applicable Rapid Prototyping profils
which are especially defining the smbol of the
service functions and the valid id range. The order
of the RptProfiles determines the order of the
service function invocation by RTE.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName
rptSystem System 0..1 ref System which describes the rapid prototyping
algorithm in the format of AUTOSAR Software
Components.

Stereotypes: atpSplitable
Tags: atp.Splitkey=rptSystem

Table D.196: RapidPrototypingScenario

Class ReceiverComSpec (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Receiver-specific communication attributes (RPortPrototype typed by
SenderReceiverInterface).
Base ARObject, RPortComSpec
Attribute Type Mul. Kind Note
composite CompositeNetw * aggr This represents a
NetworkRe orkRepresentati CompositeNetworkRepresentation defined in the
presentatio on context of a ReceiverComSpec. The purpose of
n this aggregation is to be able to specify the
network representation of leaf elements of
ApplicationCompositeDataTypes.
dataEleme VariableDataPr 1 ref Data element these attributes belong to.
nt ototype

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Attribute Type Mul. Kind Note

handleOut HandleOutOfRa 1 attr This attribute controls how values that are out of
OfRange ngeEnum the specified range are handled according to the
values of HandleOutOfRangeEnum.
handleOut HandleOutOfRa 0..1 attr Control the way how return values are created in
OfRangeSt ngeStatusEnum case of an out-of-range situation.
atus
maxDeltaC PositiveInteger 0..1 attr Initial maximum allowed gap between two counter
ounterInit values of two consecutively received valid Data,
i.e. how many subsequent lost data is accepted.
For example, if the receiver gets Data with counter
1 and MaxDeltaCounterInit is 1, then at the next
reception the receiver can accept Counters with
values 2 and 3, but not 4.

Note that if the receiver does not receive new Data

at a consecutive read, then the receiver
increments the tolerance by 1.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
maxNoNe PositiveInteger 0..1 attr The maximum amount of missing or repeated
wOrRepea Data which the receiver does not expect to exceed
tedData under normal communication conditions.
networkRe SwDataDefProp 0..1 aggr A networkRepresentation is used to define how
presentatio s the dataElement is mapped to a communication
n bus.
replaceWit VariableAccess 0..1 aggr This aggregation is used to identify the
h AutosarDataPrototype to be taken for sourcing an
external replacement in the out-of-range handling.
syncCount PositiveInteger 0..1 attr Number of Data required for validating the
erInit consistency of the counter that shall be received
with a valid counter (i.e. counter within the allowed
lock-in range) after the detection of an unexpected
behavior of a received counter.
transforma Transformation * aggr This references the
tionComSp ComSpecProps TransformationComSpecProps which define
ecProps port-specific configuration for data transformation.
usesEndT Boolean 0..1 attr This indicates whether the corresponding
oEndProte dataElement shall be transmitted using end-to-end
ction protection.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.197: ReceiverComSpec

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Class ReferenceValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note Specifies a reference to a data prototype to be used as an initial value for a pointer in
the software.
Base ARObject, ValueSpecification
Attribute Type Mul. Kind Note
referenceV DataPrototype 1 ref The referenced data prototype.
alue

Table D.198: ReferenceValueSpecification

Class Referrable (abstract)

Package M2::AUTOSARTemplates::GenericStructure::GeneralTemplateClasses::Identifiable
Note Instances of this class can be referred to by their identifier (while adhering to
namespace borders).
Base ARObject
Attribute Type Mul. Kind Note
shortName Identifier 1 attr This specifies an identifying shortName for the
object. It needs to be unique within its context and
is intended for humans but even more for technical
reference.

Tags: xml.enforceMinMultiplicity=true;
xml.sequenceOffset=-100
shortName ShortNameFrag * aggr This specifies how the Referrable.shortName is
Fragment ment composed of several shortNameFragments.

Tags: xml.sequenceOffset=-90

Table D.199: Referrable

Primitive RevisionLabelString
Package M2::AUTOSARTemplates::GenericStructure::GeneralTemplateClasses::Primitive
Types
Note This primitive represents a revision label which identifies an engineering object. It
represents a pattern which
requires three integers representing from left to right MajorVersion,
MinorVersion, PatchVersion.
may add an application specific suffix separated by one of ".", "_", ";".

Legal patterns are for example:

4.0.0 4.0.0.1234565 4.0.0_vendor specific;13 4.0.0;12

Tags: xml.xsd.customType=REVISION-LABEL-STRING;
xml.xsd.pattern=[0-9]+\.[0-9]+\.[0-9]+([\._;].*)?; xml.xsd.type=string

Table D.200: RevisionLabelString

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Class RoleBasedPortAssignment
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Service
Mapping
Note This class specifies an assignment of a role to a particular service port
(RPortPrototype or PPortPrototype) of an AtomicSwComponentType. With this
assignment, the role of the service port can be mapped to a specific ServiceNeeds
element, so that a tool is able to create the correct connector.
Base ARObject
Attribute Type Mul. Kind Note
portPrototy PortPrototype 1 ref Service PortPrototype used in the assigned role.
pe This PortPrototype shall either belong to the same
AtomicSwComponentType as the
SwcInternalBehavior which owns the
ServiceDependency or to the same
NvBlockSwComponentType as the
NvBlockDescriptor.
role Identifier 1 attr This is the role of the assigned Port in the given
context.

The value shall be a shortName of the Blueprint of

a PortInterface as standardized in the Software
Specification of the related AUTOSAR Service.

Table D.201: RoleBasedPortAssignment

Class RootSwCompositionPrototype
Package M2::AUTOSARTemplates::SystemTemplate
Note The RootSwCompositionPrototype represents the top-level-composition of software
components within a given System. According to the use case of the System, this
may for example be the a more or less complete VFB description, the software of a
System Extract or the software of a flat ECU Extract with only atomic SWCs.

Therefore the RootSwComposition will only occasionally contain all atomic software
components that are used in a complete VFB System. The OEM is primarily
interested in the required functionality and the interfaces defining the integration of
the Software Component into the System. The internal structure of such a component
contains often substantial intellectual property of a supplier. Therefore a top-level
software composition will often contain empty compositions which represent
subsystems.

The contained SwComponentPrototypes are fully specified by their

SwComponentTypes (including PortPrototypes, PortInterfaces,
VariableDataPrototypes, SwcInternalBehavior etc.), and their ports are
interconnected using SwConnectorPrototypes.
Base ARObject, AtpFeature, AtpPrototype, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note
calibration CalibrationPara * ref Used CalibrationParameterValueSet for instance
Parameter meterValueSet specific initialization of calibration parameters.
ValueSet
Stereotypes: atpSplitable
Tags: atp.Splitkey=calibrationParameterValueSet

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Attribute Type Mul. Kind Note

flatMap FlatMap 0..1 ref The FlatMap used in the scope of this
RootSwCompositionPrototype.

Stereotypes: atpSplitable
Tags: atp.Splitkey=flatMap
softwareC CompositionSw 1 tref We assume that there is exactly one top-level
omposition ComponentTyp composition that includes all Component
e instances of the system

Stereotypes: isOfType

Table D.202: RootSwCompositionPrototype

Enumeration RptAccessEnum
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport::
RptSupport
Note Determines the access rights to a data object with respect to rapid prototyping.
Literal Description
enabled The related data element is accessible by RP tool.

Tags: atp.EnumerationValue=0
none The related data element is not accessible by RP tool.

Tags: atp.EnumerationValue=1
protected The data element is known to the RP tool however its usage for RP can be
restricted. Use case: limitation based on access rights

Tags: atp.EnumerationValue=2

Table D.203: RptAccessEnum

Class RptContainer
Package M2::AUTOSARTemplates::SWComponentTemplate::RPTScenario
Note This meta class defines a byPassPoint and the relation to a rptHook.

Additionally it may contain further rptContainers if the byPassPoint is not atomic. For
example a byPassPoint refereing to a RunnableEntity may contain rptContainers
referring to the data access points of the RunnableEntity.

The RptContainer structure on M1 shall follow the M1 structure of the Software

Component Descriptions. The category attribute denotes which level of the Software
Component Description is annotated.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

byPassPoi AtpFeature 1..* iref byPassPoint desribes the required preparation of
nt the host ECU. At a byPassPoint the host ECU
shall be capable to communicate with a RPT
System in order to support the execution of the
rapid prototyping algorithms with the original data
calculated by the host system and to replace
dedicated results of the host system by the results
of the rapid prototyping algorithm.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=byPassPoint
vh.latestBindingTime=preCompileTime
explicitRpt RptProfile * ref This attribute defines the applicable RptProfiles for
ProfileSele the specific RptContainer. If not any references to
ction a specific RptProfile is defined, all RptProfiles
defined in the RapidPrototypingScenario are
applicable.

Tags: atp.Splitkey=explicitRptProfileSelection
rptContain RptContainer * aggr Sub-level rptContainer definitions of this specific
er rapid prototyping scenario.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
rptExecuta RptExecutableE 0..1 aggr Describes the required code preparation for rapid
bleEntityPr ntityProperties prototyping at ExecutableEntity invocation.
operties
rptHook RptHook 0..1 aggr The rptHook describes the link between a
byPassPoint and the rapid prototyping algorithm.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=rptHook, variationPoint.short
Label
vh.latestBindingTime=preCompileTime
rptImplPoli RptImplPolicy 0..1 aggr Describes the required code preparation for rapid
cy prototyping at data accesses.
rptSwProto RptSwPrototypi 0..1 aggr Describes the required accessibility of data and
typingAcce ngAccess modes by the rapid prototyping tooling.
ss

Table D.204: RptContainer

Enumeration RptEnablerImplTypeEnum
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport::
RptSupport
Note Describes the required / implemented usage of enabler flags for data access in the
code.
Literal Description

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none No "RP enabler" is implemented.

Tags: atp.EnumerationValue=0
rptEnabler "RP enabler" is implemented as a RAM variable
Ram
Tags: atp.EnumerationValue=1
rptEnabler The RTE generator implements both the RAM and ROM "RP enabler".
RamAndRom
Tags: atp.EnumerationValue=3
rptEnabler "RP enabler" is implemented as a calibrateable ROM variable.
Rom
Tags: atp.EnumerationValue=2

Table D.205: RptEnablerImplTypeEnum

Class RptExecutableEntityEvent
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport::Rpt
Support
Note This describes a ExecutableEntity event instance which can be bypassed.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
executionC RptExecutionCo 1..* ref This describes the context in which the event of
ontext ntext the executable entity is executed.
mcDataAs RoleBasedMcD * aggr Reference to related McDataElements describing
signment ataAssignment the implementation of ?RP runnable disabler flag"
and "stimulation enabler flag"

The possible roles of the

RoleBasedMcDataAssignment.role attribute are:
RpRunnableDisablerFlag"

rptEventId PositiveInteger 1 attr RPT event id used for service points call.
rptExecuta RptExecutableE 1 aggr Describes the implemented code preparation for
bleEntityPr ntityProperties rapid prototyping at ExecutableEntity invocation.
operties
rptImplPoli RptImplPolicy 0..1 aggr Describes the RptImplPolicy of a
cy RptExecutableEvent for service based bypassing.
rptService RptServicePoint 1..* ref This describes the applicable Post Service Points
PointPost for a RTEEvent / BswEvent of a bypassed
ExecutableEntity.
rptService RptServicePoint 1..* ref This describes the applicable Pre Service Points
PointPre for a RTEEvent / BswEvent of a bypassed
ExecutableEntity.

Table D.206: RptExecutableEntityEvent

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Class RptExecutableEntityProperties
Package M2::AUTOSARTemplates::SWComponentTemplate::RPTScenario
Note Describes the code preparation for rapid prototyping at ExecutableEntity invocation.
Base ARObject
Attribute Type Mul. Kind Note
maxRptEv PositiveInteger 1 attr Highest RPT event id useable for RTE generated
entId service points. This attribute is relevant, if
dedicated id range shall be applied to the
ExecutableEntitys of a software component or
specific ExecutableEntitys.
minRptEve PositiveInteger 1 attr Lowest RPT event id useable for RTE generated
ntId service points. This attribute is relevant, if
dedicated id range shall be applied to the
ExecutableEntitys of a software component or
specific ExecutableEntitys.
rptExecutio RptExecutionCo 1 attr This attribute specifies the rapid prototyping
nControl ntrolEnum control of the executable
rptService RptServicePoint 1 attr Enables generation of service points by the RTE
Point Enum generator.

Table D.207: RptExecutableEntityProperties

Enumeration RptExecutionControlEnum
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport::
RptSupport
Note Determines rapid prototyping preparation of a ExecutableEntity.
Literal Description
conditional The ExecutableEntity is only executed when the rapid prototyping disable flag is
NOT set.

Tags: atp.EnumerationValue=0
none The ExecutableEntity is executed without specific rapid prototyping condition.

Tags: atp.EnumerationValue=1

Table D.208: RptExecutionControlEnum

Class RptImplPolicy
Package M2::AUTOSARTemplates::SWComponentTemplate::RPTScenario
Note Describes the code preparation for rapid prototyping at data accesses.
Base ARObject
Attribute Type Mul. Kind Note
rptEnablerI RptEnablerImpl 1 attr For Level 2 or Level3 this property determines
mplType TypeEnum how the RTE implements the additional ?RP
enabler" flag.
rptPreparat RptPreparation 1 attr Mandates RP preparation level for access to
ionLevel Enum VariableDataPrototype within generated RTE
implementation.

Table D.209: RptImplPolicy

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Enumeration RptPreparationEnum
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport::
RptSupport
Note Determines the RP preparation level for access to VariableDataPrototypes within
the generated RTE implementation.
Literal Description
none No RP preparation for VariableDataPrototype.

Tags: atp.EnumerationValue=0
rptLevel1 The RTE implementation uses an ?RP global buffer" for measurement and
post-build hooking purposes.

Tags: atp.EnumerationValue=1
rptLevel2 As rpLevel1 but the RTE implementation also uses both ?RP enabler flag" to
permit RP overwrite at run-time.

Tags: atp.EnumerationValue=2
rptLevel3 As rpLevel2 but the RTE implementation also uses "RP global measurement
buffer" to record the original ECU-generated value in addition to the RP value.

Tags: atp.EnumerationValue=3

Table D.210: RptPreparationEnum

Class RptProfile
Package M2::AUTOSARTemplates::SWComponentTemplate::RPTScenario
Note The RptProfile describes the common properties of a Rapid Prototyping method.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
maxServic PositiveInteger 1 attr Highest service point id useable for RTE
ePointId generated service points.
minService PositiveInteger 1 attr Lowest service point id useable for RTE generated
PointId service points.
servicePoi CIdentifier 1 attr Complete symbol of the function implementing the
ntSymbolP post service point. This symbol is used for
ost post-build hooking purposes.
servicePoi CIdentifier 1 attr Complete symbol of the function implementing the
ntSymbolP pre service point. This symbol is used for
re post-build hooking purposes.
stimEnable RptEnablerImpl 1 attr Defines if the service points support the
r TypeEnum stimulation enabler. If RptProfile.stimEnabler is
"none" then no stimulation enabler is passed to
the service function. Otherwise the stimulation
enabler will be passed as a parameter.

Table D.211: RptProfile

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Class RptSupportData
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport::Rpt
Support
Note Root element for rapid prototyping support data related to one Implementation artifact
on an ECU, in particular the RTE. The rapid prototyping support data may reference
to elements provided for McSupportData.
Base ARObject
Attribute Type Mul. Kind Note
executionC RptExecutionCo 1..* aggr Defines a environment for the execution of
ontext ntext ExecutableEntites. Blah
rptCompon RptComponent 1..* aggr Description of components for which rapid
ent prototyping support is implemented.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
rptService RptServicePoint 1..* aggr Stereotypes: atpVariationTags: vh.latestBinding
Point Time=preCompileTime

Table D.212: RptSupportData

Class RptSwPrototypingAccess
Package M2::AUTOSARTemplates::CommonStructure::MeasurementCalibrationSupport::Rpt
Support
Note Describes the accessibility of data and modes by the rapid prototyping tooling.
Base ARObject
Attribute Type Mul. Kind Note
rptHookAc RptAccessEnu 1 attr The related data element can be modified using a
cess m post-build hooking tool. An ENABLED
VariableDataPrototype is implicitly
READABLE/WRITABLE.
rptReadAc RptAccessEnu 1 attr The related data element can be used as input for
cess m bypass functionality by RP tool. If rptImplPolicy is
not specified then RTE generation must ensure at
least suitable MC read points are created.
rptWriteAc RptAccessEnu 1 attr The related data element can be used as output
cess m for bypass functionality by RP tool. The data
element must be prepared to rptLevel2 and
related write service points are present.

Table D.213: RptSwPrototypingAccess

Class RuleBasedValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note This meta-class is used to support a rule-based initialization approach for data types
with an array-nature (ApplicationArrayDataType and ImplementationDataType of
category ARRAY) or a compound ApplicationPrimitiveDataType (which also boils
down to an array-nature).
Base ARObject
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

arguments RuleArguments 1 aggr This represents the arguments for the
RuleBasedValueSpecification.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=30
maxSizeTo Integer 0..1 attr If a rule is chosen which does not fill until the end,
Fill this determines until which size the rule shall fill
the values.

Tags: xml.sequenceOffset=40
rule Identifier 1 attr This denotes the name of the rule of the
RuleBasedValueSpecification. The rule
determines the calculation specification according
which the arguments are used to calculated the
values.

Tags: xml.sequenceOffset=20

Table D.214: RuleBasedValueSpecification

Class RunnableEntity
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior
Note A RunnableEntity represents the smallest code-fragment that is provided by an
AtomicSwComponentType and are executed under control of the RTE.
RunnableEntities are for instance set up to respond to data reception or operation
invocation on a server.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, ExecutableEntity,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
argument RunnableEntity * aggr This represents the formal definition of a an
(ordered) Argument argument to a RunnableEntity.
asynchron AsynchronousS * aggr The server call result point admits a runnable to
ousServer erverCallResult fetch the result of an asynchronous server call.
CallResult Point
Point The aggregation of
AsynchronousServerCallResultPoint is subject to
variability with the purpose to support the
conditional existence of client server
PortPrototypes and the variant existence of server
call result points in the implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

canBeInvo Boolean 1 attr If the value of this attribute is set to "true" the
kedConcur enclosing RunnableEntity can be invoked
rently concurrently (even for one instance of the
corresponding AtomicSwComponentType). This
implies that it is the responsibility of the
implementation of the RunnableEntity to take care
of this form of concurrency. Note that the default
value of this attribute is set to "false".
dataReadA VariableAccess * aggr RunnableEntity has implicit read access to
ccess dataElement of a sender-receiver PortPrototype or
nv data of a nv data PortPrototype.

The aggregation of dataReadAccess is subject to

variability with the purpose to support the
conditional existence of sender receiver ports or
the variant existence of dataReadAccess in the
implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
dataReceiv VariableAccess * aggr RunnableEntity has explicit read access to
ePointByAr dataElement of a sender-receiver PortPrototype or
gument nv data of a nv data PortPrototype. The result is
passed back to the application by means of an
argument in the function signature.

The aggregation of dataReceivePointByArgument

is subject to variability with the purpose to support
the conditional existence of sender receiver
PortPrototype or the variant existence of data
receive points in the implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
dataReceiv VariableAccess * aggr RunnableEntity has explicit read access to
ePointByV dataElement of a sender-receiver PortPrototype or
alue nv data of a nv data PortPrototype.

The result is passed back to the application by

means of the return value. The aggregation of
dataReceivePointByValue is subject to variability
with the purpose to support the conditional
existence of sender receiver ports or the variant
existence of data receive points in the
implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

dataSendP VariableAccess * aggr RunnableEntity has explicit write access to
oint dataElement of a sender-receiver PortPrototype or
nv data of a nv data PortPrototype.

The aggregation of dataSendPoint is subject to

variability with the purpose to support the
conditional existence of sender receiver
PortPrototype or the variant existence of data
send points in the implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
dataWriteA VariableAccess * aggr RunnableEntity has implicit write access to
ccess dataElement of a sender-receiver PortPrototype or
nv data of a nv data PortPrototype.

The aggregation of dataWriteAccess is subject to

variability with the purpose to support the
conditional existence of sender receiver ports or
the variant existence of dataWriteAccess in the
implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
externalTri ExternalTriggeri * aggr The aggregation of ExternalTriggeringPoint is
ggeringPoi ngPoint subject to variability with the purpose to support
nt the conditional existence of trigger ports or the
variant existence of external triggering points in
the implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=externalTriggeringPoint,
variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
internalTrig InternalTriggerin * aggr The aggregation of InternalTriggeringPoint is
geringPoin gPoint subject to variability with the purpose to support
t the variant existence of internal triggering points in
the implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

modeAcce ModeAccessPoi * aggr The runnable has a mode access point. The
ssPoint nt aggregation of ModeAccessPoint is subject to
variability with the purpose to support the
conditional existence of mode ports or the variant
existence of mode access points in the
implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=modeAccessPoint, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
modeSwitc ModeSwitchPoi * aggr The runnable has a mode switch point. The
hPoint nt aggregation of ModeSwitchPoint is subject to
variability with the purpose to support the
conditional existence of mode ports or the variant
existence of mode switch points in the
implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
parameter ParameterAcce * aggr The presence of a ParameterAccess implies that a
Access ss RunnableEntity needs read only access to a
ParameterDataPrototype which may either be
local or within a PortPrototype.

The aggregation of ParameterAccess is subject to

variability with the purpose to support the
conditional existence of parameter ports and
component local parameters as well as the variant
existence of ParameterAccess (points) in the
implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

readLocal VariableAccess * aggr The presence of a readLocalVariable implies that
Variable a RunnableEntity needs read access to a
VariableDataPrototype in the role of
implicitInterRunnableVariable or
explicitInterRunnableVariable.

The aggregation of readLocalVariable is subject to

variability with the purpose to support the
conditional existence of
implicitInterRunnableVariable and
explicitInterRunnableVariable or the variant
existence of readLocalVariable (points) in the
implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
serverCall ServerCallPoint * aggr The RunnableEntity has a ServerCallPoint. The
Point aggregation of ServerCallPoint is subject to
variability with the purpose to support the
conditional existence of client server
PortPrototypes or the variant existence of server
call points in the implementation.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
symbol CIdentifier 1 attr The symbol describing this RunnableEntitys entry
point. This is considered the API of the
RunnableEntity and is required during the RTE
contract phase.
waitPoint WaitPoint * aggr The WaitPoint associated with the RunnableEntity.
writtenLoc VariableAccess * aggr The presence of a writtenLocalVariable implies
alVariable that a RunnableEntity needs write access to a
VariableDataPrototype in the role of
implicitInterRunnableVariable or
explicitInterRunnableVariable.

The aggregation of writtenLocalVariable is subject

to variability with the purpose to support the
conditional existence of
implicitInterRunnableVariable and
explicitInterRunnableVariable or the variant
existence of writtenLocalVariable (points) in the
implementation.

Stereotypes: atpVariation
Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

Table D.215: RunnableEntity

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Class RunnableEntityArgument
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Runnable
Entity
Note This meta-class represents the ability to provide specific information regarding the
arguments to a RunnableEntity.
Base ARObject
Attribute Type Mul. Kind Note
symbol CIdentifier 1 attr This represents the symbol to be generated into
the actual signature on the level of the C
programming language.

Table D.216: RunnableEntityArgument

Class RunnableEntityGroup
Package M2::AUTOSARTemplates::SWComponentTemplate::ImplicitCommunicationBehavior
Note This meta-class represents the ability to define a collection of RunnableEntities. The
collection can be nested.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
runnableE RunnableEntity * iref This represents a collection of RunnableEntitys
ntity that belong to the enclosing RunnableEntityGroup.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
runnableE RunnableEntity * iref This represents the ability to define nested groups
ntityGroup Group of RunnableEntitys.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.217: RunnableEntityGroup

Class Sdg
Package M2::MSR::AsamHdo::SpecialData
Note Sdg (SpecialDataGroup) is a generic model which can be used to keep arbitrary
information which is not explicitly modeled in the meta-model.

Sdg can have various contents as defined by sdgContentsType. Special Data should
only be used moderately since all elements should be defined in the meta-model.

Thereby SDG should be considered as a temporary solution when no explicit model is

available. If an sdgCaption is available, it is possible to establish a reference to the
sdg structure.
Base ARObject
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

gid NameToken 1 attr This attributes specifies an identifier. Gid comes
from the SGML/XML-Term "Generic Identifier"
which is the element name in XML. The role of this
attribute is the same as the name of an XML -
element.

Tags: xml.attribute=true
sdgCaptio SdgCaption 0..1 aggr This aggregation allows to assign the properties of
n Identifiable to the sdg. By this, a shortName etc.
can be assigned to the Sdg.

Tags: xml.sequenceOffset=20
sdgCaptio SdgCaption 0..1 ref This association allows to reuse an already
nRef existing caption.

Tags: xml.name=SDG-CAPTION-REF;
xml.sequenceOffset=25
sdgConten SdgContents 0..1 aggr This is the content of the Sdg.
tsType
Tags: xml.roleElement=false; xml.roleWrapper
Element=false; xml.sequenceOffset=30; xml.type
Element=false; xml.typeWrapperElement=false

Table D.218: Sdg

Class ScaleConstr
Package M2::MSR::AsamHdo::Constraints::GlobalConstraints
Note This meta-class represents the ability to specify constraints as a list of intervals
(called scales).
Base ARObject
Attribute Type Mul. Kind Note
desc MultiLanguage 0..1 aggr <desc> represents a general but brief description
OverviewParagr of the object in question.
aph
Tags: xml.sequenceOffset=30
lowerLimit Limit 0..1 attr This specifies the lower limit of the scale.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=40
shortLabel Identifier 0..1 attr This element specifies a short name for the
scaleConstr. This can for example be used to
create more specific messages of a constraint
checker. The constraints cannot be associated in
the meta-model, therefore shortLabel is somehow
a substitute for shortName.

Tags: xml.sequenceOffset=20

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Attribute Type Mul. Kind Note

upperLimit Limit 0..1 attr This specifies the upper limit of a the scale.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=50
validity ScaleConstrVali 0..1 attr Specifies if the values defined by the scales are
dityEnum considered to be valid. If the attribute is missing
then the default value is "VALID".

Tags: xml.attribute=true

Table D.219: ScaleConstr

Class SectionNamePrefix
Package M2::AUTOSARTemplates::CommonStructure::ResourceConsumption::Memory
SectionUsage
Note A prefix to be used for generated code artifacts defining a memory section name in
the source code of the using module.
Base ARObject, ImplementationProps, Referrable
Attribute Type Mul. Kind Note
implement DependencyOn 0..1 ref Optional reference that allows to Indicate the code
edIn Artifact artifact (header file) containing the preprocessor
implementation of memory sections with this
prefix.

The usage of this link supersedes the usage of a

memory mapping header with the default name
(derived from the BswModuleDescriptions
shortName).

Table D.220: SectionNamePrefix

Class SenderComSpec (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes for a sender port (PPortPrototype typed by
SenderReceiverInterface).
Base ARObject, PPortComSpec
Attribute Type Mul. Kind Note
composite CompositeNetw * aggr This represents a
NetworkRe orkRepresentati CompositeNetworkRepresentation defined in the
presentatio on context of a SenderComSpec.
n
dataEleme VariableDataPr 1 ref Data element these quality of service attributes
nt ototype apply to.
handleOut HandleOutOfRa 1 attr This attribute controls how out-of-range values
OfRange ngeEnum shall be dealt with.
networkRe SwDataDefProp 0..1 aggr A networkRepresentation is used to define how
presentatio s the dataElement is mapped to a communication
n bus.

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Attribute Type Mul. Kind Note

transmissi TransmissionAc 0..1 aggr Requested transmission acknowledgement for
onAcknowl knowledgement data element.
edge Request
usesEndT Boolean 1 attr This indicates whether the corresponding
oEndProte dataElement shall be transmitted using end-to-end
ction protection.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.221: SenderComSpec

Class SenderReceiverInterface
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note A sender/receiver interface declares a number of data elements to be sent and
received.

Tags: atp.recommendedPackage=PortInterfaces
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, DataInterface, Identifiable, MultilanguageReferrable,
PackageableElement, PortInterface, Referrable
Attribute Type Mul. Kind Note
dataEleme VariableDataPr 1..* aggr The data elements of this
nt ototype SenderReceiverInterface.
invalidation InvalidationPolic * aggr InvalidationPolicy for a particular dataElement
Policy y

Table D.222: SenderReceiverInterface

Class SenderReceiverToSignalGroupMapping
Package M2::AUTOSARTemplates::SystemTemplate::DataMapping
Note Mapping of a sender receiver communication data element with a composite datatype
to a signal group.
Base ARObject, DataMapping
Attribute Type Mul. Kind Note
dataEleme VariableDataPr 1 iref Reference to a data element with a composite
nt ototype datatype which is mapped to a signal group.
signalGrou SystemSignalGr 1 ref Reference to the signal group, which contain all
p oup primitive datatypes of the composite type
typeMappi SenderRecCom 1 aggr The CompositeTypeMapping maps the the
ng positeTypeMap ApplicationArrayElements and
ping ApplicationRecordElements to Signals of the
SignalGroup.

Table D.223: SenderReceiverToSignalGroupMapping

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Class SenderReceiverToSignalMapping
Package M2::AUTOSARTemplates::SystemTemplate::DataMapping
Note Mapping of a sender receiver communication data element to a signal.
Base ARObject, DataMapping
Attribute Type Mul. Kind Note
dataEleme VariableDataPr 1 iref Reference to the data element.
nt ototype
systemSig SystemSignal 1 ref Reference to the system signal used to carry the
nal data element.

Table D.224: SenderReceiverToSignalMapping

Class SensorActuatorSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note The SensorActuatorSwComponentType introduces the possibility to link from the
software representation of a sensor/actuator to its hardware description provided by
the ECU Resource Template.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtomicSwComponentType, AtpBlueprint, AtpBlueprintable,
AtpClassifier, AtpType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable, SwComponentType
Attribute Type Mul. Kind Note
sensorActu HwDescriptionE 1 ref Reference from the Sensor Actuator Software
ator ntity Component Type to the description of the actual
hardware.

Table D.225: SensorActuatorSwComponentType

Enumeration ServerArgumentImplPolicyEnum
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note This defines how the argument type of the servers RunnableEntity is implemented.
Literal Description
useArgument The argument type of the RunnableEntity is derived from the AutosarDataType of
Type the ArgumentPrototype.

Tags: atp.EnumerationValue=0
useArray The argument type of the RunnableEntity is derived from the AutosarDataType of
BaseType the elements of the array that corresponds to the ArgumentPrototype. This
represents the base type of the array in C.

Tags: atp.EnumerationValue=1
useVoid The argument type of the RunnableEntity is void.

Tags: atp.EnumerationValue=2

Table D.226: ServerArgumentImplPolicyEnum

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Class ServerCallPoint (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::ServerCall
Note If a RunnableEntity owns a ServerCallPoint it is entitled to invoke a particular
ClientServerOperation of a specific RPortPrototype of the corresponding
AtomicSwComponentType
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
operation ClientServerOp 0..1 iref The operation that is called by this runnable.
eration
timeout TimeValue 1 attr Time in seconds before the server call times out
and returns with an error message. It depends on
the call type (synchronous or asynchronous) how
this is reported.

Table D.227: ServerCallPoint

Class ServerComSpec
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Communication attributes for a server port (PPortPrototype and
ClientServerInterface).
Base ARObject, PPortComSpec
Attribute Type Mul. Kind Note
operation ClientServerOp 1 ref Operation these communication attributes apply
eration to.
queueLeng PositiveInteger 1 attr Length of call queue on the server side. The
th queue is implemented by the RTE. The value shall
be greater or equal to 1. Setting the value of
queueLength to 1 implies that incoming requests
are rejected while another request that arrived
earlier is being processed.
transforma Transformation * aggr This references the
tionComSp ComSpecProps TransformationComSpecProps which define
ecProps port-specific configuration for data transformation.

Table D.228: ServerComSpec

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Class ServiceProxySwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note This class provides the ability to express a software-component which provides
access to an internal service for remote ECUs. It acts as a proxy for the service
providing access to the service.

An important use case is the request of vehicle mode switches: Such requests can be
communicated via sender-receiver interfaces across ECU boundaries, but the mode
manager being responsible to perform the mode switches is an AUTOSAR Service
which is located in the Basic Software and is not visible in the VFB view. To handle
this situation, a ServiceProxySwComponentType will act as proxy for the mode
manager. It will have R-Ports to be connected with the mode requestors on VFB level
and Service-Ports to be connected with the local mode manager at ECU integration
time.

Apart from the semantics, a ServiceProxySwComponentType has these specific

properties:
A prototype of it can be mapped to more than one ECUs in the system
description.
Exactly one additional instance of it will be created in the ECU-Extract per ECU
to which the prototype has been mapped.
For remote communication, it can have only R-Ports with sender-receiver
interfaces and 1:n semantics.
There shall be no connectors between two prototypes of any
ServiceProxySwComponentType.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtomicSwComponentType, AtpBlueprint, AtpBlueprintable,
AtpClassifier, AtpType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable, SwComponentType
Attribute Type Mul. Kind Note

Table D.229: ServiceProxySwComponentType

Class ServiceSwComponentType
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note ServiceSwComponentType is used for configuring services for a given ECU.
Instances of this class are only to be created in ECU Configuration phase for the
specific purpose of the service configuration.

Tags: atp.recommendedPackage=SwComponentTypes
Base ARElement, ARObject, AtomicSwComponentType, AtpBlueprint, AtpBlueprintable,
AtpClassifier, AtpType, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable, SwComponentType
Attribute Type Mul. Kind Note

Table D.230: ServiceSwComponentType

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Class SubElementMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note This meta-class allows for the definition of mappings of elements of a composite data
type.
Base ARObject
Attribute Type Mul. Kind Note
firstElemen SubElementRef 0..1 aggr This represents the first element referenced in the
t scope of the mapping.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
secondEle SubElementRef 0..1 aggr This represents the second element referenced in
ment the scope of the mapping.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
textTableM TextTableMappi 0..2 aggr This allows for the text-table translation of
apping ng individual elements of a composite data type.

Table D.231: SubElementMapping

Class SwAddrMethod
Package M2::MSR::DataDictionary::AuxillaryObjects
Note Used to assign a common addressing method, e.g. common memory section, to data
or code objects. These objects could actually live in different modules or components.

Tags: atp.recommendedPackage=SwAddrMethods
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, CollectableElement,
Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
memoryAll MemoryAllocati 0..1 attr Enumeration to specify the name pattern of the
ocationKey onKeywordPolic Memory Allocation Keyword.
wordPolicy yType
option Identifier * attr This attribute introduces the ability to specify
further intended properties of the MemorySection
in with the related objects shall be placed.

These properties are handled as to be selected.

The intended options are mentioned in the list.

In the Memory Mapping configuration, this option

list is used to determine an appropriate
MemMapAddressingModeSet.

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Attribute Type Mul. Kind Note

sectionIniti SectionInitializat 0..1 attr Specifies the expected initialization of the
alizationPo ionPolicyType variables (inclusive those which are implementing
licy VariableDataPrototypes). Therefore this is an
implementation constraint for initialization code of
BSW modules (especially RTE) as well as the
start-up code which initializes the memory
segment to which the AutosarDataPrototypes
referring to the SwAddrMethods are later on
mapped.

If the attribute is not defined it has the identical

semantic as the attribute value "INIT"
sectionTyp MemorySection 0..1 attr Defines the type of memory sections which can be
e Type associated with this addresssing method.

Table D.232: SwAddrMethod

Class SwBaseType
Package M2::MSR::AsamHdo::BaseTypes
Note This meta-class represents a base type used within ECU software.

Tags: atp.recommendedPackage=BaseTypes
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, BaseType, Collectable
Element, Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note

Table D.233: SwBaseType

Enumeration SwCalibrationAccessEnum
Package M2::MSR::DataDictionary::DataDefProperties
Note Determines the access rights to a data object w.r.t. measurement and calibration.
Literal Description
notAccessi- The element will not be accessible via MCD tools, i.e. will not appear in the ASAP
ble file.

Tags: atp.EnumerationValue=0
readOnly The element will only appear as read-only in an ASAP file.

Tags: atp.EnumerationValue=1
readWrite The element will appear in the ASAP file with both read and write access.

Tags: atp.EnumerationValue=2

Table D.234: SwCalibrationAccessEnum

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Class SwComponentPrototype
Package M2::AUTOSARTemplates::SWComponentTemplate::Composition
Note Role of a software component within a composition.
Base ARObject, AtpFeature, AtpPrototype, Identifiable, MultilanguageReferrable,
Referrable
Attribute Type Mul. Kind Note
type SwComponentT 1 tref Type of the instance.
ype
Stereotypes: isOfType

Table D.235: SwComponentPrototype

Class SwComponentType (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note Base class for AUTOSAR software components.
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement,
Referrable
Attribute Type Mul. Kind Note
consistenc ConsistencyNee * aggr This represents the colelction of
yNeeds ds ConsistencyNeeds owned by the enclosing
SwComponentType.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
port PortPrototype * aggr The PortPrototypes through which this
SwComponentType can communicate.

The aggregation of PortPrototype is subject to

variability with the purpose to support the
conditional existence of PortPrototypes.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
portGroup PortGroup * aggr A port group being part of this component.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
swCompon SwComponentD 0..1 aggr This adds a documentation to the
entDocum ocumentation SwComponentType.
entation
Stereotypes: atpSplitable; atpVariation
Tags: atp.Splitkey=swComponentDocumentation,
variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
xml.sequenceOffset=-10

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Attribute Type Mul. Kind Note

unitGroup UnitGroup * ref This allows for the specification of which
UnitGroups are relevant in the context of
referencing SwComponentType.

Table D.236: SwComponentType

Class SwConnector (abstract)

Package M2::AUTOSARTemplates::SWComponentTemplate::Composition
Note The base class for connectors between ports. Connectors have to be identifiable to
allow references from the system constraint template.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
mapping PortInterfaceMa 0..1 ref Reference to a PortInterfaceMapping specifying
pping the mapping of unequal named PortInterface
elements of the two different PortInterfaces typing
the two PortPrototypes which are referenced by
the ConnectorPrototype.

Table D.237: SwConnector

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Class atpVariation SwDataDefProps

Package M2::MSR::DataDictionary::DataDefProperties
Note This class is a collection of properties relevant for data objects under various aspects.
One could consider this class as a "pattern of inheritance by aggregation". The
properties can be applied to all objects of all classes in which SwDataDefProps is
aggregated.

Note that not all of the attributes or associated elements are useful all of the time.
Hence, the process definition (e.g. expressed with an OCL or a Document Control
Instance MSR-DCI) has the task of implementing limitations.

SwDataDefProps covers various aspects:

Structure of the data element for calibration use cases: is it a single value, a
curve, or a map, but also the recordLayouts which specify how such elements
are mapped/converted to the DataTypes in the programming language (or in
AUTOSAR). This is mainly expressed by properties like swRecordLayout and
swCalprmAxisSet
Implementation aspects, mainly expressed by swImplPolicy,
swVariableAccessImplPolicy, swAddrMethod, swPointerTagetProps, baseType,
implementationDataType and additionalNativeTypeQualifier
Access policy for the MCD system, mainly expressed by swCalibrationAccess
Semantics of the data element, mainly expressed by compuMethod and/or
unit, dataConstr, invalidValue
Code generation policy provided by swRecordLayout

Tags: vh.latestBindingTime=codeGenerationTime
Base ARObject
Attribute Type Mul. Kind Note
additionalN NativeDeclarati 0..1 attr This attribute is used to declare native qualifiers of
ativeType onString the programming language which can neither be
Qualifier deduced from the baseType (e.g. because the
data object describes a pointer) nor from other
more abstract attributes. Examples are qualifiers
like "volatile", "strict" or "enum" of the C-language.
All such declarations have to be put into one
string.

Tags: xml.sequenceOffset=235
annotation Annotation * aggr This aggregation allows to add annotations (yellow
pads ...) related to the current data object.

Tags: xml.roleElement=true; xml.roleWrapper

Element=true; xml.sequenceOffset=20; xml.type
Element=false; xml.typeWrapperElement=false
baseType SwBaseType 0..1 ref Base type associated with the containing data
object.

Tags: xml.sequenceOffset=50

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Attribute Type Mul. Kind Note

compuMet CompuMethod 0..1 ref Computation method associated with the
hod semantics of this data object.

Tags: xml.sequenceOffset=180
dataConstr DataConstr 0..1 ref Data constraint for this data object.

Tags: xml.sequenceOffset=190
displayFor DisplayFormatS 0..1 attr This property describes how a number is to be
mat tring rendered e.g. in documents or in a measurement
and calibration system.

Tags: xml.sequenceOffset=210
implement Implementation 0..1 ref This association denotes the
ationDataT DataType ImplementationDataType of a data declaration via
ype its aggregated SwDataDefProps. It is used
whenever a data declaration is not directly
referring to a base type. Especially
redefinition of an ImplementationDataType
via a "typedef" to another
ImplementationDatatype
the target type of a pointer (see
SwPointerTargetProps), if it does not refer
to a base type directly
the data type of an array or record element
within an ImplementationDataType, if it
does not refer to a base type directly
the data type of an SwServiceArg, if it does
not refer to a base type directly

Tags: xml.sequenceOffset=215
invalidValu ValueSpecificati 0..1 aggr Optional value to express invalidity of the actual
e on data element.

Tags: xml.sequenceOffset=255
stepSize Float 0..1 attr This attribute can be used to define a value which
is added to or subtracted from the value of a
DataPrototype when using up/down keys while
calibrating.
swAddrMet SwAddrMethod 0..1 ref Addressing method related to this data object. Via
hod an association to the same SwAddrMethod it can
be specified that several DataPrototypes shall be
located in the same memory without already
specifying the memory section itself.

Tags: xml.sequenceOffset=30

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Attribute Type Mul. Kind Note

swAlignme AlignmentType 0..1 attr The attribute describes the intended alignment of
nt the DataPrototype. If the attribute is not defined
the alignment is determined by the swBaseType
size and the memoryAllocationKeywordPolicy of
the referenced SwAddrMethod.

Tags: xml.sequenceOffset=33
swBitRepr SwBitRepresent 0..1 aggr Description of the binary representation in case of
esentation ation a bit variable.

Tags: xml.sequenceOffset=60
swCalibrati SwCalibrationA 0..1 attr Specifies the read or write access by MCD tools
onAccess ccessEnum for this data object.

Tags: xml.sequenceOffset=70
swCalprm SwCalprmAxisS 0..1 aggr This specifies the properties of the axes in case of
AxisSet et a curve or map etc. This is mainly applicable to
calibration parameters.

Tags: xml.sequenceOffset=90
swCompari SwVariableRefP * aggr Variables used for comparison in an MCD
sonVariabl roxy process.
e
Tags: xml.sequenceOffset=170; xml.type
Element=false
swDataDe SwDataDepend 0..1 aggr Describes how the value of the data object has to
pendency ency be calculated from the value of another data
object (by the MCD system).

Tags: xml.sequenceOffset=200
swHostVar SwVariableRefP 0..1 aggr Contains a reference to a variable which serves as
iable roxy a host-variable for a bit variable. Only applicable
to bit objects.

Tags: xml.sequenceOffset=220; xml.type

Element=false
swImplPoli SwImplPolicyEn 0..1 attr Implementation policy for this data object.
cy um
Tags: xml.sequenceOffset=230

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Attribute Type Mul. Kind Note

swIntende Numerical 0..1 attr The purpose of this element is to describe the
dResolutio requested quantization of data objects early on in
n the design process.

The resolution ultimately occurs via the conversion

formula present (compuMethod), which specifies
the transition from the physical world to the
standardized world (and vice-versa) (here, "the
slope per bit" is present implicitly in the conversion
formula).

In the case of a development phase without a

fixed conversion formula, a pre-specification can
occur through swIntendedResolution.

The resolution is specified in the physical domain

according to the property "unit".

Tags: xml.sequenceOffset=240
swInterpol Identifier 0..1 attr This is a keyword identifying the mathematical
ationMetho method to be applied for interpolation. The
d keyword needs to be related to the interpolation
routine which needs to be invoked.

Tags: xml.sequenceOffset=250
swIsVirtual Boolean 0..1 attr This element distinguishes virtual objects. Virtual
objects do not appear in the memory, their
derivation is much more dependent on other
objects and hence they shall have a
swDataDependency .

Tags: xml.sequenceOffset=260
swPointerT SwPointerTarge 0..1 aggr Specifies that the containing data object is a
argetProps tProps pointer to another data object.

Tags: xml.sequenceOffset=280
swRecordL SwRecordLayo 0..1 ref Record layout for this data object.
ayout ut
Tags: xml.sequenceOffset=290
swRefresh Multidimensiona 0..1 aggr This element specifies the frequency in which the
Timing lTime object involved shall be or is called or calculated.
This timing can be collected from the task in which
write access processes to the variable run. But
this cannot be done by the MCD system.

So this attribute can be used in an early phase to

express the desired refresh timing and later on to
specify the real refresh timing.

Tags: xml.sequenceOffset=300

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Attribute Type Mul. Kind Note

swTextPro SwTextProps 0..1 aggr the specific properties if the data object is a text
ps object.

Tags: xml.sequenceOffset=120
swValueBl Numerical 0..1 attr This represents the size of a Value Block
ockSize
Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=80
unit Unit 0..1 ref Physical unit associated with the semantics of this
data object. This attribute applies if no
compuMethod is specified. If both units (this as
well as via compuMethod) are specified the units
shall be compatible.

Tags: xml.sequenceOffset=350
valueAxisD ApplicationPrimi 0..1 ref The referenced ApplicationPrimitiveDataType
ataType tiveDataType represents the primitive data type of the value axis
within a compound primitive (e.g. curve, map). It
supersedes CompuMethod, Unit, and BaseType.

Tags: xml.sequenceOffset=355

Table D.238: SwDataDefProps

Enumeration SwImplPolicyEnum
Package M2::MSR::DataDictionary::DataDefProperties
Note Specifies the implementation strategy with respect to consistency mechanisms of
variables.
Literal Description
const forced implementation such that the running software within the ECU shall not
modify it. For example implemented with the "const" modifier in C. This can be
applied for parameters (not for those in NVRAM) as well as argument data
prototypes.

Tags: atp.EnumerationValue=0
fixed This data element is fixed. In particular this indicates, that it might also be
implemented e.g. as in place data, (#DEFINE).

Tags: atp.EnumerationValue=1
measurement The data element is created for measurement purposes only. The data element is
Point never read directly within the ECU software. In contrast to a "standard" data
element in an unconnected provide port is, this unconnection is guaranteed for
measurementPoint data elements.

Tags: atp.EnumerationValue=2
queued The content of the data element is queued and the data element has event
semantics, i.e. data elements are stored in a queue and all data elements are
processed in first in first out order. The queuing is intended to be implemented by
RTE Generator. This value is not applicable for parameters.

Tags: atp.EnumerationValue=3

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standard This is applicable for all kinds of data elements. For variable data prototypes the
last is best semantics applies. For parameter there is no specific implementation
directive.

Tags: atp.EnumerationValue=4

Table D.239: SwImplPolicyEnum

Class SwPointerTargetProps
Package M2::MSR::DataDictionary::DataDefProperties
Note This element defines, that the data object (which is specified by the aggregating
element) contains a reference to another data object or to a function in the CPU code.
This corresponds to a pointer in the C-language.

The attributes of this element describe the category and the detailed properties of the
target which is either a data description or a function signature.
Base ARObject
Attribute Type Mul. Kind Note
functionPoi BswModuleEntr 0..1 ref The referenced BswModuleEntry serves as the
nterSignat y signature of a function pointer definition. Primary
ure use case: function pointer passed as argument to
other function.

Tags: xml.sequenceOffset=40
swDataDef SwDataDefProp 0..1 aggr The properties of the target data type.
Props s
Tags: xml.sequenceOffset=30
targetCate Identifier 0..1 attr This specifies the category of the target:
gory
In case of a data pointer, it shall specify the
category of the referenced data.
In case of a function pointer, it could be
used to denote the category of the
referenced BswModuleEntry. Since
currently no categories for BswModuleEntry
are defined it will be empty.

Tags: xml.sequenceOffset=5

Table D.240: SwPointerTargetProps

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Class SwRecordLayout
Package M2::MSR::DataDictionary::RecordLayout
Note Defines how the data objects (variables, calibration parameters etc.) are to be stored
in the ECU memory. As an example, this definition specifies the sequence of axis
points in the ECU memory. Iterations through axis values are stored within the
sub-elements swRecordLayoutGroup.

Tags: atp.recommendedPackage=SwRecordLayouts
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
swRecordL SwRecordLayo 1 aggr This is the top level record layout group.
ayoutGrou utGroup
p Tags: xml.roleElement=true; xml.roleWrapper
Element=false; xml.sequenceOffset=20; xml.type
Element=false; xml.typeWrapperElement=false

Table D.241: SwRecordLayout

Class SwServiceArg
Package M2::MSR::DataDictionary::ServiceProcessTask
Note Specifies the properties of a data object exchanged during the call of an SwService,
e.g. an argument or a return value.

The SwServiceArg can also be used in the argument list of a C-macro. For this
purpose the category shall be set to "MACRO". A reference to
implementationDataType can optional be added if the actual argument has an
implementationDataType.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
direction ArgumentDirecti 0..1 attr Specifies the direction of the data transfer. The
onEnum direction shall indicate the direction of the actual
information that is being consumed by the caller
and/or the callee, not the direction of formal
arguments in C.

The attribute is optional for backwards

compatibility reasons. For example, if a pointer is
used to pass a memory address for the expected
result, the direction shall be "out". If a pointer is
used to pass a memory address with content to be
read by the callee, its direction shall be "in".

Tags: xml.sequenceOffset=10
swArraysiz ValueList 0..1 aggr This turns the argument of the service to an array.
e
Tags: xml.sequenceOffset=20
swDataDef SwDataDefProp 0..1 aggr Data properties of this SwServiceArg.
Props s
Tags: xml.sequenceOffset=30

Table D.242: SwServiceArg

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Class SwSystemconst
Package M2::MSR::DataDictionary::SystemConstant
Note This element defines a system constant which serves an input to select a particular
variation point. In particular a system constant serves as an operand of the binding
function (swSyscond) in a Variation point.

Note that the binding process can only happen if a value was assigned to to the
referenced system constants.

Tags: atp.recommendedPackage=SwSystemconsts
Base ARElement, ARObject, AtpDefinition, CollectableElement, Identifiable, Multilanguage
Referrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
swDataDef SwDataDefProp 0..1 aggr This denotes the data defintion properties of the
Props s system constant. In particular it is the limits and -
in case the system constant is an enumeration -
the compu method.

Tags: xml.sequenceOffset=40

Table D.243: SwSystemconst

Class atpMixedString SwSystemconstDependentFormula (abstract)

Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This class represents an expression depending on system constants.
Base ARObject, FormulaExpression
Attribute Type Mul. Kind Note
sysc SwSystemconst 1 ref This refers to a system constant. The internal
(coded) value of the system constant shall be
used.

Tags: xml.sequenceOffset=50
syscString SwSystemconst 1 ref syscString indicates that the referenced system
constant shall be evaluated as a string according
to [TPS_SWCT_01431].

Table D.244: SwSystemconstDependentFormula

Class SwSystemconstValue
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This meta-class assigns a particular value to a system constant.
Base ARObject
Attribute Type Mul. Kind Note
annotation Annotation * aggr This provides the ability to add information why
the value is set like it is.

Tags: xml.sequenceOffset=30

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Attribute Type Mul. Kind Note

swSystem SwSystemconst 1 ref This is the system constant to which the value
const applies.

Tags: xml.sequenceOffset=10
value Numerical 1 attr This is the particular value of a system constant. It
is specified as Numerical. Further restrictions may
apply by the definition of the system constant.

The value attribute defines the internal value of

the SwSystemconst as it is processed in the
Formula Language.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=20

Table D.245: SwSystemconstValue

Class SwSystemconstantValueSet
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This meta-class represents the ability to specify a set of system constant values.

Tags: atp.recommendedPackage=SwSystemconstantValueSets
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
swSystem SwSystemconst * aggr This is one particular value of a system constant.
constantVa Value
lue

Table D.246: SwSystemconstantValueSet

Class atpMixed SwValues

Package M2::MSR::CalibrationData::CalibrationValue
Note This meta-class represents a list of values. These values can either be the input
values of a curve (abscissa values) or the associated values (ordinate values).

In case of multidimensional structures, the values are ordered such that the lowest
index runs the fastest. In particular for maps and cuboids etc. the resulting long value
list can be subsectioned using ValueGroup. But the processing needs to be done as if
vg is not there.

Note that numerical values and textual values should not be mixed.
Base ARObject
Attribute Type Mul. Kind Note
v Numerical 1 attr This is a non variant Value. It is provided for sake
of Compatibility to ASAM CDF.

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Attribute Type Mul. Kind Note

vf Numerical 1 attr This allows to specify the value as VariationPoint.
It is distinguished to non variant for sake of
compatibility to ASAM CDF 2.0.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=20
vg ValueGroup 1 aggr This allows to have intersections in the values in
order to support specific rendering (eg. using
stylesheets). For tools it is important that the v
values are always processed in the same
(flattened) order and the tool is able to interpret it
without respecting vg.

Tags: xml.sequenceOffset=50
vt VerbatimString 1 attr This represents the values of textual data
elements (Strings). Note that vt uses the | to
separate the values for the different bitfield masks
in case that the semantics of the related
DataPrototype is described by means of a
BITFIELD_TEXTTABLE in the associated
CompuMethod.

Tags: xml.sequenceOffset=30
vtf NumericalOrTex 1 aggr Thias aggregation represents the ability to provide
t a value that is either numerical or text which
existence is subject to variability.

From the formal point of view, the aggregation

needs to have the multiplicity 1 because SwValues
is modelled with stereotype atpMixed.
Nevertheless, the existence of vtf is optional and
subject to constraints.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.247: SwValues

Class SwcBswMapping
Package M2::AUTOSARTemplates::CommonStructure::SwcBswMapping
Note Maps an SwcInternalBehavior to an BswInternalBehavior. This is required to
coordinate the API generation and the scheduling for AUTOSAR Service
Components, ECU Abstraction Components and Complex Driver Components by the
RTE and the BSW scheduling mechanisms.

Tags: atp.recommendedPackage=SwcBswMappings
Base ARElement, ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Collectable
Element, Identifiable, MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
bswBehavi BswInternalBeh 1 ref The mapped BswInternalBehavior
or avior

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Attribute Type Mul. Kind Note

runnableM SwcBswRunnab * aggr A mapping between a pair of SWC and BSW
apping leMapping runnables.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
swcBehavi SwcInternalBeh 1 ref The mapped SwcInternalBehavior.
or avior
synchroniz SwcBswSynchr * aggr A pair of SWC and BSW mode group prototypes
edModeGr onizedModeGro to be synchronized by the scheduler.
oup upPrototype
Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
synchroniz SwcBswSynchr * aggr A pair of SWC and BSW Triggers to be
edTrigger onizedTrigger synchronized by the scheduler.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime

Table D.248: SwcBswMapping

Class SwcBswRunnableMapping
Package M2::AUTOSARTemplates::CommonStructure::SwcBswMapping
Note Maps a BswModuleEntity to a RunnableEntity if it is implemented as part of a BSW
module (in the case of an AUTOSAR Service, a Complex Driver or an ECU
Abstraction). The mapping can be used by a tool to find relevant information on the
behavior, e.g. whether the bswEntity shall be running in interrupt context.
Base ARObject
Attribute Type Mul. Kind Note
bswEntity BswModuleEntit 1 ref The mapped BswModuleEntity
y
swcRunna RunnableEntity 1 ref The mapped SWC runnable.
ble

Table D.249: SwcBswRunnableMapping

Class SwcBswSynchronizedTrigger
Package M2::AUTOSARTemplates::CommonStructure::SwcBswMapping
Note Synchronizes a Trigger provided by a component via a port with a Trigger provided by
a BSW module or cluster.
Base ARObject
Attribute Type Mul. Kind Note
bswTrigger Trigger 1 ref The BSW Trigger.
swcTrigger Trigger 1 iref The SWC Trigger provided by a particular port.

Table D.250: SwcBswSynchronizedTrigger

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Class SwcExclusiveAreaPolicy
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior
Note Options how to generate the ExclusiveArea related APIs. If no
SwcExclusiveAreaPolicy is specified for an ExclusiveArea the default values apply.
Base ARObject
Attribute Type Mul. Kind Note
apiPrincipl ApiPrincipleEnu 1 attr Specifies for this ExclusiveArea if either one
e m common set of Enter and Exit APIs for the whole
software component is requested from the Rte or
if the set of Enter and Exit APIs is expected per
RunnableEntity. The default value is "common".
exclusiveA ExclusiveArea 1 ref This reference represents the ExclusiveArea for
rea which the policy applies.

Table D.251: SwcExclusiveAreaPolicy

Class SwcImplementation
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcImplementation
Note This meta-class represents a specialization of the general Implementation meta-class
with respect to the usage in application software.

Tags: atp.recommendedPackage=SwcImplementations
Base ARElement, ARObject, CollectableElement, Identifiable, Implementation,
MultilanguageReferrable, PackageableElement, Referrable
Attribute Type Mul. Kind Note
behavior SwcInternalBeh 1 ref The internal behavior implemented by this
avior Implementation.
perInstanc PerInstanceMe * aggr Allows a definition of the size of the per-instance
eMemoryS morySize memory for this implementation. The aggregation
ize of PerInstanceMemorySize is subject to variability
with the purpose to support variability in the
software components implementations. Typically
different algorithms in the implementation are
requiring different number of memory objects, in
this case PerInstanceMemory.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
requiredRT String 0..1 attr Identify a specific RTE vendor. This information is
EVendor potentially important at the time of integrating (in
particular: linking) the application code with the
RTE. The semantics is that (if the association
exists) the corresponding code has been created
to fit to the vendor-mode RTE provided by this
specific vendor. Attempting to integrate the code
with another RTE generated in vendor mode is in
general not possible.

Table D.252: SwcImplementation

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Class SwcInternalBehavior
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior
Note The SwcInternalBehavior of an AtomicSwComponentType describes the relevant
aspects of the software-component with respect to the RTE, i.e. the RunnableEntities
and the RTEEvents they respond to.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable, Internal
Behavior, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
arTypedPe VariableDataPr * aggr Defines an AUTOSAR typed memory-block that
rInstanceM ototype needs to be available for each instance of the
emory SW-component.

This is typically only useful if

supportsMultipleInstantiation is set to "true" or if
the component defines NVRAM access via
permanent blocks.

The aggregation of arTypedPerInstanceMemory is

subject to variability with the purpose to support
variability in the software components
implementations. Typically different algorithms in
the implementation are requiring different number
of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
event RTEEvent * aggr This is a RTEEvent specified for the particular
SwcInternalBehavior.

The aggregation of RTEEvent is subject to

variability with the purpose to support the
conditional existence of RTE events. Note: the
number of RTE events might vary due to the
conditional existence of PortPrototypes using
DataReceivedEvents or due to different
scheduling needs of algorithms.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
exclusiveA SwcExclusiveAr * aggr Options how to generate the ExclusiveArea
reaPolicy eaPolicy related APIs. When no SwcExclusiveAreaPolicy is
specified for an ExclusiveArea the default values
apply.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=exclusiveAreaPolicy
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

explicitInte VariableDataPr * aggr Implement state message semantics for
rRunnable ototype establishing communication among runnables of
Variable the same component. The aggregation of
explicitInterRunnableVariable is subject to
variability with the purpose to support variability in
the software components implementations.
Typically different algorithms in the implementation
are requiring different number of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
handleTer HandleTerminat 1 attr This attribute controls the behavior with respect to
minationAn ionAndRestartE stopping and restarting. The corresponding
dRestart num AtomicSwComponentType may either not support
stop and restart, or support only stop, or support
both stop and restart.
implicitInte VariableDataPr * aggr Implement state message semantics for
rRunnable ototype establishing communication among runnables of
Variable the same component. The aggregation of
implicitInterRunnableVariable is subject to
variability with the purpose to support variability in
the software components implementations.
Typically different algorithms in the implementation
are requiring different number of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
includedDa IncludedDataTy * aggr The includedDataTypeSet is used by a software
taTypeSet peSet component for its implementation.

Stereotypes: atpSplitable
Tags: atp.Splitkey=includedDataTypeSet
includedM IncludedModeD * aggr This aggregation represents the included
odeDeclar eclarationGroup ModeDeclarationGroups
ationGroup Set
Set Stereotypes: atpSplitable
Tags: atp.Splitkey=includedModeDeclaration
GroupSet

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Attribute Type Mul. Kind Note

instantiatio InstantiationDat * aggr The purpose of this is that within the context of a
nDataDefP aDefProps given SwComponentType some data def
rops properties of individual instantiations can be
modified. The aggregation of
InstantiationDataDefProps is subject to variability
with the purpose to support the conditional
existence of PortPrototypes and component local
memories like "perInstanceParameter" or
"arTypedPerInstanceMemory".

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=instantiationDataDefProps,
variationPoint.shortLabel
vh.latestBindingTime=preCompileTime
perInstanc PerInstanceMe * aggr Defines a per-instance memory object needed by
eMemory mory this software component. The aggregation of
PerInstanceMemory is subject to variability with
the purpose to support variability in the software
components implementations. Typically different
algorithms in the implementation are requiring
different number of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
perInstanc ParameterData * aggr Defines parameter(s) or characteristic value(s)
eParamete Prototype that needs to be available for each instance of the
r software-component. This is typically only useful if
supportsMultipleInstantiation is set to "true". The
aggregation of perInstanceParameter is subject to
variability with the purpose to support variability in
the software components implementations.
Typically different algorithms in the implementation
are requiring different number of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
portAPIOpt PortAPIOption * aggr Options for generating the signature of
ion port-related calls from a runnable to the RTE and
vice versa. The aggregation of PortPrototypes is
subject to variability with the purpose to support
the conditional existence of ports.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=portAPIOption, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime

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Attribute Type Mul. Kind Note

runnable RunnableEntity * aggr This is a RunnableEntity specified for the
particular SwcInternalBehavior.

The aggregation of RunnableEntity is subject to

variability with the purpose to support the
conditional existence of RunnableEntities. Note:
the number of RunnableEntities might vary due to
the conditional existence of PortPrototypes using
DataReceivedEvents or due to different
scheduling needs of algorithms.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
serviceDep SwcServiceDep * aggr Defines the requirements on AUTOSAR Services
endency endency for a particular item.

The aggregation of SwcServiceDependency is

subject to variability with the purpose to support
the conditional existence of ports as well as the
conditional existence of ServiceNeeds.

The SwcServiceDependency owned by an

SwcInternalBehavior can be located in a different
physical file in order to support that
SwcServiceDependency might be provided in later
development steps or even by different expert
domain (e.g OBD expert for Obd related Service
Needs) tools. Therefore the aggregation is
atpSplitable.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
sharedPar ParameterData * aggr Defines parameter(s) or characteristic value(s)
ameter Prototype shared between SwComponentPrototypes of the
same SwComponentType The aggregation of
sharedParameter is subject to variability with the
purpose to support variability in the software
components implementations. Typically different
algorithms in the implementation are requiring
different number of memory objects.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
supportsM Boolean 1 attr Indicate whether the corresponding
ultipleInsta software-component can be multiply instantiated
ntiation on one ECU. In this case the attribute will result in
an appropriate component API on programming
language level (with or without instance handle).

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Attribute Type Mul. Kind Note

variationPo VariationPointPr * aggr Proxy of a variation points in the C/C++
intProxy oxy implementation.

Stereotypes: atpSplitable
Tags: atp.Splitkey=shortName

Table D.253: SwcInternalBehavior

Class SwcModeManagerErrorEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This represents the ability to react on errors occurring during mode handling.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
modeGrou ModeDeclaratio 1 iref This represents the
p nGroupPrototyp ModeDeclarationGroupPrototype for which the
e error behavior of the mode manager applies.

Table D.254: SwcModeManagerErrorEvent

Class SwcModeSwitchEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This event is raised upon a received mode change.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
activation ModeActivation 1 attr Specifies if the event is activated on entering or
Kind exiting the referenced Mode.
mode (or- ModeDeclaratio 1..2 iref Reference to one or two Modes that initiate the
dered) n SwcModeSwitchEvent.

Table D.255: SwcModeSwitchEvent

Class SwcServiceDependency
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Service
Mapping
Note Specialization of ServiceDependency in the context of an SwcInternalBehavior. It
allows to associate ports, port groups and (in special cases) data defined for an
atomic software component to a given ServiceNeeds element.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable, ServiceDependency
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

assignedD RoleBasedData * aggr Defines the role of an associated data object of
ata Assignment the same component.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
assignedP RoleBasedPort * aggr Defines the role of an associated port of the same
ort Assignment component.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=assignedPort, variation
Point.shortLabel
vh.latestBindingTime=preCompileTime
represente PortGroup 0..1 ref This reference specifies an association between
dPortGrou the ServiceNeeeds and a PortGroup, for example
p to request a communication mode which applies
for communication via these ports. The referred
PortGroup shall be local to this atomic SWC, but
via the links between the PortGroups, a tool can
evaluate this information such that all the ports
linked via this port group on the same ECU can be
found.
serviceNee ServiceNeeds 1 aggr The associated ServiceNeeds.
ds

Table D.256: SwcServiceDependency

Class SymbolProps
Package M2::AUTOSARTemplates::SWComponentTemplate::Components
Note This meta-class represents the ability to attach with the symbol attribute a symbolic
name that is conform to C language requirements to another meta-class, e.g.
AtomicSwComponentType, that is a potential subject to a name clash on the level of
RTE source code.
Base ARObject, ImplementationProps, Referrable
Attribute Type Mul. Kind Note

Table D.257: SymbolProps

Class SynchronousServerCallPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::ServerCall
Note This means that the RunnableEntity is supposed to perform a blocking wait for a
response from the server.
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable, ServerCallPoint
Attribute Type Mul. Kind Note
calledFrom ExclusiveAreaN 0..1 ref This indicates that the call point is located at the
WithinExcl estingOrder deepest level inside one or more ExclusiveAreas
usiveArea that are nested in the given order.

Table D.258: SynchronousServerCallPoint

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Class SystemMapping
Package M2::AUTOSARTemplates::SystemTemplate
Note The system mapping aggregates all mapping aspects (mapping of SW components
to ECUs, mapping of data elements to signals, and mapping constraints).
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
application ApplicationPartit * aggr Mapping of ApplicationPartitions to EcuPartitions
PartitionTo ionToEcuPartiti
EcuPartitio onMapping Stereotypes: atpSplitable; atpVariation
nMapping Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=postBuild
dataMappi DataMapping * aggr The data mappings defined.
ng
Stereotypes: atpVariation
Tags: vh.latestBindingTime=postBuild
ecuResour ECUMapping * aggr Mapping of hardware related topology elements
ceMapping onto their counterpart definitions in the ECU
Resource Template.

atpVariation: The ECU Resource type might be

variable.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=systemDesignTime
j1939Contr J1939Controller * aggr Mapping of a J1939ControllerApplication to a
ollerApplic ApplicationToJ1 J1939NmNode.
ationToJ19 939NmNodeMa
39NmNod pping
eMapping
mappingC MappingConstr * aggr Constraints that limit the mapping freedom for the
onstraint aint mapping of SW components to ECUs.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=systemDesignTime
pncMappin PncMapping * aggr Stereotypes: atpVariationTags: vh.latestBinding
g Time=systemDesignTime
resourceE EcuResourceEs * aggr Resource estimations for this set of mappings,
stimation timation zero or one per ECU instance. atpVariation: Used
ECUs are variable.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=systemDesignTime
signalPath SignalPathCons * aggr Constraints that limit the mapping freedom for the
Constraint traint mapping of data elements to signals.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=systemDesignTime

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Attribute Type Mul. Kind Note

swImplMa SwcToImplMap * aggr The mappings of AtomicSoftwareComponent
pping ping Instances to Implementations.

atpVariation: Derived, because

SwcToEcuMapping is variable.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
swMappin SwcToEcuMapp * aggr The mappings of SW components to ECUs.
g ing
atpVariation: SWC shall be mapped to other
ECUs.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
swcToAppl SwcToApplicati * aggr Allows to map a given SwComponentPrototype to
icationParti onPartitionMapp a formally defined partition at a point in time when
tionMappin ing the corresponding EcuInstance is not yet known or
g defined.

Stereotypes: atpSplitable; atpVariation

Tags: atp.Splitkey=shortName, variation
Point.shortLabel
vh.latestBindingTime=postBuild

Table D.259: SystemMapping

Class SystemSignal
Package M2::AUTOSARTemplates::SystemTemplate::Fibex::FibexCore::CoreCommunication
Note The system signal represents the communication systems view of data exchanged
between SW components which reside on different ECUs. The system signals allow
to represent this communication in a flattened structure, with exactly one system
signal defined for each data element prototype sent and received by connected SW
component instances.

Tags: atp.recommendedPackage=SystemSignals
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
dynamicLe Boolean 1 attr The length of dynamic length signals is variable in
ngth run-time. Only a maximum length of such a signal
is specified in the configuration (attribute length in
ISignal element).
physicalPr SwDataDefProp 0..1 aggr Specification of the physical representation.
ops s

Table D.260: SystemSignal

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Class SystemSignalGroup
Package M2::AUTOSARTemplates::SystemTemplate::Fibex::FibexCore::CoreCommunication
Note A signal group refers to a set of signals that must always be kept together. A signal
group is used to guarantee the atomic transfer of AUTOSAR composite data types.

The SystemSignalGroup defines a signal grouping on VFB level. On cluster level the
Signal grouping is described by the ISignalGroup element.

Tags: atp.recommendedPackage=SystemSignalGroups
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
systemSig SystemSignal * ref Reference to a set of SystemSignals that must
nal always be kept together.
transformin SystemSignal 0..1 ref Optional reference to the SystemSignal which
gSystemSi shall contain the transformed (linear) data.
gnal

Table D.261: SystemSignalGroup

Class TextTableMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Defines the mapping of two DataPrototypes typed by AutosarDataTypes that refer to
CompuMethods of category TEXTTABLE, SCALE_LINEAR_AND_TEXTTABLE or
BITFIELD_TEXTTABLE.
Base ARObject
Attribute Type Mul. Kind Note
bitfieldText PositiveInteger 0..1 attr This attribute can be used to support the mapping
TableMask of bit field to bit field, boolean values to bit fields,
First and vice versa. The attribute defines the bit mask
for the first element of the TextTableMapping.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
bitfieldText PositiveInteger 0..1 attr This attribute can be used to support the mapping
TableMask of bit field to bit field, boolean values to bit fields,
Second and vice versa. The attribute defines the bit mask
for the second element of the TextTableMapping.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
identicalM Boolean 1 attr If identicalMapping is set == true the values of the
apping two referenced DataPrototypes do not need any
conversion of the values.
mappingDi MappingDirectio 1 attr Specifies the conversion direction for which the
rection nEnum TextTableMapping is applicable.
valuePair TextTableValue * aggr Defines a pair of values which are translated into
Pair each other.

Table D.262: TextTableMapping

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Class TextValueSpecification
Package M2::AUTOSARTemplates::CommonStructure::Constants
Note The purpose of TextValueSpecification is to define the labels that correspond to
enumeration values.
Base ARObject, ValueSpecification
Attribute Type Mul. Kind Note
value VerbatimString 1 attr This is the value itself.

Note that vt uses the | operator to separate the

values for the different bitfield masks in case that
the semantics of the related DataPrototype is
described by means of a BITFIELD_TEXTTABLE
in the associated CompuMethod.

Table D.263: TextValueSpecification

Class TimingEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note TimingEvent references the RunnableEntity that need to be started in response to the
TimingEvent
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
period TimeValue 1 attr Period of timing event in seconds. The value of
this attribute shall be greater than zero.

Table D.264: TimingEvent

Class atpVariation TransformationISignalProps (abstract)

Package M2::AUTOSARTemplates::SystemTemplate::Transformer
Note TransformationISignalProps holds all the attributes for the different
TransformationTechnologies that are ISignal specific.

Tags: vh.latestBindingTime=postBuild
Base ARObject, Describable
Attribute Type Mul. Kind Note
csErrorRe CSTransformer 0..1 attr Defines whether the transformer chain of
action ErrorReactionE client/server communication coordinates an
num autonomous error reaction together with the RTE
or whether any error reaction is the responsibility
of the application.
dataProtot DataPrototypeT * aggr Fine granular modeling of TransfromationProps on
ypeTransfo ransformationPr the level of DataPrototypes.
rmationPro ops
ps
transforme Transformation 1 ref Reference to the TransformationTechnology
r Technology description that contains transformer specific and
ISignal independent configuration properties.

Table D.265: TransformationISignalProps

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Class TransformationTechnology
Package M2::AUTOSARTemplates::SystemTemplate::Transformer
Note A TransformationTechnology is a transformer inside a transformer chain.

Tags: xml.namePlural=TRANSFORMATION-TECHNOLOGIES
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
bufferProp BufferProperties 1 aggr Aggregation of the mandatory BufferProperties.
erties
hasInternal Boolean 0..1 attr This attribute defines whether the Transformer has
State an internal state or not.
needsOrigi Boolean 0..1 attr Specifies whether this transformer gets access to
nalData the SWCs original data.
protocol String 1 attr Specifies the protocol that is implemented by this
transformer.
transforma Transformation 0..1 aggr A transformer can be configured with transformer
tionDescrip Description specific parameters which are represented by the
tion TransformerDescription.

Stereotypes: atpVariation
Tags: vh.latestBindingTime=postBuild
transforme TransformerCla 1 attr Specifies to which transformer class this
rClass ssEnum transformer belongs.
version String 1 attr Version of the implemented protocol.

Table D.266: TransformationTechnology

Enumeration TransformerClassEnum
Package M2::AUTOSARTemplates::SystemTemplate::Transformer
Note Specifies the transformer class of a transformer.
Literal Description
custom The transformer is a custom transformer.

Tags: atp.EnumerationValue=0
safety The transformer is a safety transformer.

Tags: atp.EnumerationValue=1
security The transformer is a security transformer.

Tags: atp.EnumerationValue=2
serializer The transformer is a serializing transformer.

Tags: atp.EnumerationValue=3

Table D.267: TransformerClassEnum

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Class TransformerHardErrorEvent
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note The event is raised when data are received which should trigger a Client/Server
operation or an external trigger but during transformation of the data a hard
transformer error occurred.
Base ARObject, AbstractEvent, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, RTEEvent, Referrable
Attribute Type Mul. Kind Note
operation ClientServerOp 0..1 iref This represents the ClientServerOperation to
eration which the TransformerHardErrorEvent refers to.
trigger Trigger 0..1 iref Trigger for which the transformer can trigger this
TransformerHardErrorEvent

Table D.268: TransformerHardErrorEvent

Class TransmissionAcknowledgementRequest
Package M2::AUTOSARTemplates::SWComponentTemplate::Communication
Note Requests transmission acknowledgement that data has been sent successfully.
Success/failure is reported via a SendPoint of a RunnableEntity.
Base ARObject
Attribute Type Mul. Kind Note
timeout TimeValue 1 attr Number of seconds before an error is reported or
in case of allowed redundancy, the value is sent
again.

Table D.269: TransmissionAcknowledgementRequest

Class Trigger
Package M2::AUTOSARTemplates::CommonStructure::TriggerDeclaration
Note A trigger which is provided (i.e. released) or required (i.e. used to activate something)
in the given context.
Base ARObject, AtpClassifier, AtpFeature, AtpStructureElement, Identifiable,
MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
swImplPoli SwImplPolicyEn 0..1 attr This attribute, when set to value queued, allows
cy um for a queued processing of Triggers.
triggerPeri Multidimensiona 0..1 aggr Optional definition of a period in case of a
od lTime periodically (time or angle) driven external trigger.

Table D.270: Trigger

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Class TriggerInterface
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note A trigger interface declares a number of triggers that can be sent by an trigger source.

Tags: atp.recommendedPackage=PortInterfaces
Base ARElement, ARObject, AtpBlueprint, AtpBlueprintable, AtpClassifier, AtpType,
CollectableElement, Identifiable, MultilanguageReferrable, PackageableElement, Port
Interface, Referrable
Attribute Type Mul. Kind Note
trigger Trigger 1..* aggr The Trigger of this trigger interface.

Table D.271: TriggerInterface

Class TriggerInterfaceMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Defines the mapping of unequal named Triggers in context of two different
TriggerInterfaces.
Base ARObject, AtpBlueprint, AtpBlueprintable, Identifiable, MultilanguageReferrable, Port
InterfaceMapping, Referrable
Attribute Type Mul. Kind Note
triggerMap TriggerMapping 1..* aggr Mapping of two Trigger in two different
ping TriggerInterface

Table D.272: TriggerInterfaceMapping

Class TriggerToSignalMapping
Package M2::AUTOSARTemplates::SystemTemplate::DataMapping
Note This meta-class represents the ability to map a trigger to a SystemSignal of size 0.
The Trigger does not transport any other information than its existence, therefore the
limitation in terms of signal length.
Base ARObject, DataMapping
Attribute Type Mul. Kind Note
systemSig SystemSignal 1 ref This is the SystemSignal taken to transport the
nal Trigger over the network.

Tags: xml.sequenceOffset=20
trigger Trigger 1 iref This represents the Trigger that shall be used to
trigger RunnableEntities deployed to a remote
ECU.

Tags: xml.sequenceOffset=10

Table D.273: TriggerToSignalMapping

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Class Unit
Package M2::MSR::AsamHdo::Units
Note This is a physical measurement unit. All units that might be defined should stem from
SI units. In order to convert one unit into another factor and offset are defined.

For the calculation from SI-unit to the defined unit the factor (factorSiToUnit ) and the
offset (offsetSiToUnit ) are applied as follows:
x [{unit}] := y * [{siUnit}] * factorSiToUnit [[unit]/{siUnit}] +
offsetSiToUnit [{unit}]

For the calculation from a unit to SI-unit the reciprocal of the factor (factorSiToUnit )
and the negation of the offset (offsetSiToUnit ) are applied.
y {siUnit} := (x*{unit} - offsetSiToUnit [{unit}]) / (factorSiToUnit
[[unit]/{siUnit}]

Tags: atp.recommendedPackage=Units
Base ARElement, ARObject, CollectableElement, Identifiable, MultilanguageReferrable,
PackageableElement, Referrable
Attribute Type Mul. Kind Note
displayNa SingleLanguage 0..1 aggr This specifies how the unit shall be displayed in
me UnitNames documents or in user interfaces of tools.The
displayName corresponds to the Unit.Display in an
ASAM MCD-2MC file.

Tags: xml.sequenceOffset=20
factorSiTo Float 0..1 attr This is the factor for the conversion from SI Units
Unit to units.

The inverse is used for conversion from units to SI

Units.

Tags: xml.sequenceOffset=30
offsetSiTo Float 0..1 attr This is the offset for the conversion from and to
Unit siUnits.

Tags: xml.sequenceOffset=40
physicalDi PhysicalDimens 0..1 ref This association represents the physical
mension ion dimension to which the unit belongs to. Note that
only values with units of the same physical
dimensions might be converted.

Tags: xml.sequenceOffset=50

Table D.274: Unit

Class atpMixed ValueList

Package M2::MSR::DataDictionary::DataDefProperties
Note This is a generic list of numerical values.
Base ARObject
Attribute Type Mul. Kind Note

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Attribute Type Mul. Kind Note

v Numerical 1 attr This is a particular numerical value without
variation.

Tags: xml.sequenceOffset=30
vf (or- Numerical * attr This is one entry in the list of numerical values
dered)
Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.roleElement=true; xml.roleWrapper
Element=false; xml.typeElement=false; xml.type
WrapperElement=false

Table D.275: ValueList

Class ValueSpecification (abstract)

Package M2::AUTOSARTemplates::CommonStructure::Constants
Note Base class for expressions leading to a value which can be used to initialize a data
object.
Base ARObject
Attribute Type Mul. Kind Note
shortLabel Identifier 0..1 attr This can be used to identify particular value
specifications for human readers, for example
elements of a record type.

Table D.276: ValueSpecification

Class VariableAccess
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Data
Elements
Note The presence of a VariableAccess implies that a RunnableEntity needs access to a
VariableDataPrototype.

The kind of access is specified by the role in which the class is used.
Base ARObject, AbstractAccessPoint, AtpClassifier, AtpFeature, AtpStructureElement,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
accessedV AutosarVariable 1 aggr This denotes the accessed variable.
ariable Ref
scope VariableAccess 0..1 attr This attribute allows for constraining the scope of
ScopeEnum the corresponding communication. For example, it
possible to express whether the communication is
intended to cross the boundary of an ECU or
whether it is intended not to cross the boundary of
a single partition.

Table D.277: VariableAccess

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Class VariableAndParameterInterfaceMapping
Package M2::AUTOSARTemplates::SWComponentTemplate::PortInterface
Note Defines the mapping of VariableDataPrototypes or ParameterDataPrototypes in
context of two different SenderReceiverInterfaces, NvDataInterfaces or
ParameterInterfaces.
Base ARObject, AtpBlueprint, AtpBlueprintable, Identifiable, MultilanguageReferrable, Port
InterfaceMapping, Referrable
Attribute Type Mul. Kind Note
dataMappi DataPrototypeM 1..* aggr Defines the mapping of two particular
ng apping VariableDataPrototypes or
ParameterDataPrototypes with unequal names
and/or unequal semantic (resolution or range) in
context of two different SenderReceiverInterfaces,
NvDataInterfaces or ParameterInterfaces

Table D.278: VariableAndParameterInterfaceMapping

Class VariableDataPrototype
Package M2::AUTOSARTemplates::SWComponentTemplate::Datatype::DataPrototypes
Note A VariableDataPrototype is used to contain values in an ECU application. This means
that most likely a VariableDataPrototype allocates "static" memory on the ECU. In
some cases optimization strategies might lead to a situation where the memory
allocation can be avoided.

In particular, the value of a VariableDataPrototype is likely to change as the ECU on

which it is used executes.
Base ARObject, AtpFeature, AtpPrototype, AutosarDataPrototype, DataPrototype,
Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
initValue ValueSpecificati 0..1 aggr Specifies initial value(s) of the
on VariableDataPrototype

Table D.279: VariableDataPrototype

Class VariationPoint
Package M2::AUTOSARTemplates::GenericStructure::VariantHandling
Note This meta-class represents the ability to express a "structural variation point". The
container of the variation point is part of the selected variant if swSyscond evaluates
to true and each postBuildVariantCriterion is fulfilled.
Base ARObject
Attribute Type Mul. Kind Note
desc MultiLanguage 0..1 aggr This allows to describe shortly the purpose of the
OverviewParagr variation point.
aph
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Attribute Type Mul. Kind Note

blueprintC Documentation 0..1 aggr This represents a description that documents how
ondition Block the variation point shall be resolved when deriving
objects from the blueprint.

Note that variationPoints are not allowed within a

blueprintCondition.

Tags: xml.sequenceOffset=28
formalBlue BlueprintFormul 0..1 aggr This denotes a formal blueprintCondition. This
printCondit a shall be not in contradiction with
ion blueprintCondition. It is recommanded only to use
one of the two.

Tags: xml.sequenceOffset=29
postBuildV PostBuildVarian * aggr This is the set of post build variant conditions
ariantCond tCondition which all shall be fulfilled in order to (postbuild)
ition bind the variation point.

Tags: xml.sequenceOffset=40
sdg Sdg 0..1 aggr An optional special data group is attached to every
variation point. These data can be used by
external software systems to attach application
specific data. For example, a variant management
system might add an identifier, an URL or a
specific classifier.

Tags: xml.sequenceOffset=50
shortLabel Identifier 0..1 attr This provides a name to the particular variation
point to support the RTE generator. It is necessary
for supporting splitable aggregations and if binding
time is later than codeGenerationTime, as well as
some RTE conditions. It needs to be unique with
in the enclosing Identifiables with the same
ShortName.

Tags: xml.sequenceOffset=10
swSyscon ConditionByFor 0..1 aggr This condition acts as Binding Function for the
d mula VariationPoint. Note that the mulitplicity is 0..1 in
order to support pure postBuild variants.

Tags: xml.sequenceOffset=30

Table D.280: VariationPoint

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Class VariationPointProxy
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::Variant
Handling
Note The VariationPointProxy represents variation points of the C/C++ implementation. In
case of bindingTime = compileTime the RTE provides defines which can be used for
Pre Processor directives to implement compileTime variability.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
conditionA ConditionByFor 0..1 aggr This condition acts as Binding Function for the
ccess mula VariationPoint.
implement Implementation 0..1 ref This association to ImplementationDataType shall
ationDataT DataType be taken as an implementation hint by the RTE
ype generator.
postBuildV PostBuildVarian 0..1 ref This represents the applicable
alueAcces tCriterion PostBuildVariantCriterion in the context of a
s VariationPointProxy.

Note that the technical details how to access the

particular postBuildValueAccess are still
considered internal to the RTE and are
consequently not standardized.
postBuildV PostBuildVarian * aggr This represents that applicable
ariantCond tCondition PostBuoldVariantCondition in the context of
ition aVariationPointProxy.
valueAcce AttributeValueV 0..1 aggr This value acts as Binding Function for the
ss ariationPoint VariationPoint.

Table D.281: VariationPointProxy

Class WaitPoint
Package M2::AUTOSARTemplates::SWComponentTemplate::SwcInternalBehavior::RTE
Events
Note This defines a wait-point for which the RunnableEntity can wait.
Base ARObject, Identifiable, MultilanguageReferrable, Referrable
Attribute Type Mul. Kind Note
timeout TimeValue 1 attr Time in seconds before the WaitPoint times out
and the blocking wait call returns with an error
indicating the timeout.
trigger RTEEvent 1 ref This is the RTEEvent this WaitPoint is waiting for.

Table D.282: WaitPoint

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Class atpVariation SwDataDefProps

Package M2::MSR::DataDictionary::DataDefProperties
Note This class is a collection of properties relevant for data objects under various aspects.
One could consider this class as a "pattern of inheritance by aggregation". The
properties can be applied to all objects of all classes in which SwDataDefProps is
aggregated.

Note that not all of the attributes or associated elements are useful all of the time.
Hence, the process definition (e.g. expressed with an OCL or a Document Control
Instance MSR-DCI) has the task of implementing limitations.

SwDataDefProps covers various aspects:

Structure of the data element for calibration use cases: is it a single value, a
curve, or a map, but also the recordLayouts which specify how such elements
are mapped/converted to the DataTypes in the programming language (or in
AUTOSAR). This is mainly expressed by properties like swRecordLayout and
swCalprmAxisSet
Implementation aspects, mainly expressed by swImplPolicy,
swVariableAccessImplPolicy, swAddrMethod, swPointerTagetProps, baseType,
implementationDataType and additionalNativeTypeQualifier
Access policy for the MCD system, mainly expressed by swCalibrationAccess
Semantics of the data element, mainly expressed by compuMethod and/or
unit, dataConstr, invalidValue
Code generation policy provided by swRecordLayout

Tags: vh.latestBindingTime=codeGenerationTime
Base ARObject
Attribute Type Mul. Kind Note
additionalN NativeDeclarati 0..1 attr This attribute is used to declare native qualifiers of
ativeType onString the programming language which can neither be
Qualifier deduced from the baseType (e.g. because the
data object describes a pointer) nor from other
more abstract attributes. Examples are qualifiers
like "volatile", "strict" or "enum" of the C-language.
All such declarations have to be put into one
string.

Tags: xml.sequenceOffset=235
annotation Annotation * aggr This aggregation allows to add annotations (yellow
pads ...) related to the current data object.

Tags: xml.roleElement=true; xml.roleWrapper

Element=true; xml.sequenceOffset=20; xml.type
Element=false; xml.typeWrapperElement=false
baseType SwBaseType 0..1 ref Base type associated with the containing data
object.

Tags: xml.sequenceOffset=50

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Attribute Type Mul. Kind Note

compuMet CompuMethod 0..1 ref Computation method associated with the
hod semantics of this data object.

Tags: xml.sequenceOffset=180
dataConstr DataConstr 0..1 ref Data constraint for this data object.

Tags: xml.sequenceOffset=190
displayFor DisplayFormatS 0..1 attr This property describes how a number is to be
mat tring rendered e.g. in documents or in a measurement
and calibration system.

Tags: xml.sequenceOffset=210
implement Implementation 0..1 ref This association denotes the
ationDataT DataType ImplementationDataType of a data declaration via
ype its aggregated SwDataDefProps. It is used
whenever a data declaration is not directly
referring to a base type. Especially
redefinition of an ImplementationDataType
via a "typedef" to another
ImplementationDatatype
the target type of a pointer (see
SwPointerTargetProps), if it does not refer
to a base type directly
the data type of an array or record element
within an ImplementationDataType, if it
does not refer to a base type directly
the data type of an SwServiceArg, if it does
not refer to a base type directly

Tags: xml.sequenceOffset=215
invalidValu ValueSpecificati 0..1 aggr Optional value to express invalidity of the actual
e on data element.

Tags: xml.sequenceOffset=255
stepSize Float 0..1 attr This attribute can be used to define a value which
is added to or subtracted from the value of a
DataPrototype when using up/down keys while
calibrating.
swAddrMet SwAddrMethod 0..1 ref Addressing method related to this data object. Via
hod an association to the same SwAddrMethod it can
be specified that several DataPrototypes shall be
located in the same memory without already
specifying the memory section itself.

Tags: xml.sequenceOffset=30

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Attribute Type Mul. Kind Note

swAlignme AlignmentType 0..1 attr The attribute describes the intended alignment of
nt the DataPrototype. If the attribute is not defined
the alignment is determined by the swBaseType
size and the memoryAllocationKeywordPolicy of
the referenced SwAddrMethod.

Tags: xml.sequenceOffset=33
swBitRepr SwBitRepresent 0..1 aggr Description of the binary representation in case of
esentation ation a bit variable.

Tags: xml.sequenceOffset=60
swCalibrati SwCalibrationA 0..1 attr Specifies the read or write access by MCD tools
onAccess ccessEnum for this data object.

Tags: xml.sequenceOffset=70
swCalprm SwCalprmAxisS 0..1 aggr This specifies the properties of the axes in case of
AxisSet et a curve or map etc. This is mainly applicable to
calibration parameters.

Tags: xml.sequenceOffset=90
swCompari SwVariableRefP * aggr Variables used for comparison in an MCD
sonVariabl roxy process.
e
Tags: xml.sequenceOffset=170; xml.type
Element=false
swDataDe SwDataDepend 0..1 aggr Describes how the value of the data object has to
pendency ency be calculated from the value of another data
object (by the MCD system).

Tags: xml.sequenceOffset=200
swHostVar SwVariableRefP 0..1 aggr Contains a reference to a variable which serves as
iable roxy a host-variable for a bit variable. Only applicable
to bit objects.

Tags: xml.sequenceOffset=220; xml.type

Element=false
swImplPoli SwImplPolicyEn 0..1 attr Implementation policy for this data object.
cy um
Tags: xml.sequenceOffset=230

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Attribute Type Mul. Kind Note

swIntende Numerical 0..1 attr The purpose of this element is to describe the
dResolutio requested quantization of data objects early on in
n the design process.

The resolution ultimately occurs via the conversion

formula present (compuMethod), which specifies
the transition from the physical world to the
standardized world (and vice-versa) (here, "the
slope per bit" is present implicitly in the conversion
formula).

In the case of a development phase without a

fixed conversion formula, a pre-specification can
occur through swIntendedResolution.

The resolution is specified in the physical domain

according to the property "unit".

Tags: xml.sequenceOffset=240
swInterpol Identifier 0..1 attr This is a keyword identifying the mathematical
ationMetho method to be applied for interpolation. The
d keyword needs to be related to the interpolation
routine which needs to be invoked.

Tags: xml.sequenceOffset=250
swIsVirtual Boolean 0..1 attr This element distinguishes virtual objects. Virtual
objects do not appear in the memory, their
derivation is much more dependent on other
objects and hence they shall have a
swDataDependency .

Tags: xml.sequenceOffset=260
swPointerT SwPointerTarge 0..1 aggr Specifies that the containing data object is a
argetProps tProps pointer to another data object.

Tags: xml.sequenceOffset=280
swRecordL SwRecordLayo 0..1 ref Record layout for this data object.
ayout ut
Tags: xml.sequenceOffset=290
swRefresh Multidimensiona 0..1 aggr This element specifies the frequency in which the
Timing lTime object involved shall be or is called or calculated.
This timing can be collected from the task in which
write access processes to the variable run. But
this cannot be done by the MCD system.

So this attribute can be used in an early phase to

express the desired refresh timing and later on to
specify the real refresh timing.

Tags: xml.sequenceOffset=300

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Attribute Type Mul. Kind Note

swTextPro SwTextProps 0..1 aggr the specific properties if the data object is a text
ps object.

Tags: xml.sequenceOffset=120
swValueBl Numerical 0..1 attr This represents the size of a Value Block
ockSize
Stereotypes: atpVariation
Tags: vh.latestBindingTime=preCompileTime
xml.sequenceOffset=80
unit Unit 0..1 ref Physical unit associated with the semantics of this
data object. This attribute applies if no
compuMethod is specified. If both units (this as
well as via compuMethod) are specified the units
shall be compatible.

Tags: xml.sequenceOffset=350
valueAxisD ApplicationPrimi 0..1 ref The referenced ApplicationPrimitiveDataType
ataType tiveDataType represents the primitive data type of the value axis
within a compound primitive (e.g. curve, map). It
supersedes CompuMethod, Unit, and BaseType.

Tags: xml.sequenceOffset=355

Table D.283: SwDataDefProps

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E Referenced ECUC Configuration Parameters

E.1 Com

E.1.1 ComGroupSignal

SWS Item [ECUC_Com_00520]

Container Name ComGroupSignal
Description This container contains the configuration parameters of group signals.
I.e. signals that are included within a signal group.
Post-Build Variant true
Multiplicity
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Configuration Parameters

Name ComBitPosition [ECUC_Com_00259]

Description Starting position within the I-PDU. This parameter refers to the position
in the I-PDU and not in the shadow buffer. If the endianness
conversion is configured to Opaque the parameter ComBitPosition
shall define the bit0 of the first byte like in little endian byte order
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value
Post-Build Variant true
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComBitSize [ECUC_Com_00158]

Description Size in bits, for integer signal types. For ComSignalType UINT8_N and
UINT8_DYN the size shall be configured by ComSignalLength. For
ComSignalTypes FLOAT32 and FLOAT64 the size is already defined
by the signal type and therefore may be omitted.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 64
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value

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Multiplicity Pre-compile time X VARIANT-PRE-COMPILE

Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComHandleId [ECUC_Com_00165]

Description The numerical value used as the ID.

This ID identifies signals and signal groups in the COM APIs using
Com_SignalIdType or Com_SignalGroupIdType parameter
respectively.
Multiplicity 0..1
Type EcucIntegerParamDef (Symbolic Name generated for this parameter)
Range 0 .. 65535
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

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Name ComSignalDataInvalidValue [ECUC_Com_00391]

Description Defines the data invalid value of the signal.

In case the ComSignalType is UINT8, UINT16, UINT32, UINT64,

SINT8, SINT16, SINT32, SINT64 the string shall be interpreted as
defined in the chapter Integer Type in the AUTOSAR EcuC
specification. In case the ComSignalType is FLOAT32, FLOAT64 the
string shall be interpreted as defined in the chapter Float Type in the
AUTOSAR EcuC specification. In case the ComSignalType is
BOOLEAN the string shall be interpreted as defined in the chapter
Boolean Type in the AUTOSAR EcuC specification. In case the
ComSignal is a UINT8_N, UINT8_DYN the string shall be interpreted
as a decimal representation of the characters separated by blanks, e.g.
"97 98 100" means a string "abd", where the char "a" is in byte 0(lowest
address), "b" is in byte 1, and "d" is in byte 2 and (highest address).
For the ComSignalType UINT8_DYN the dynamic length shall be set to
the number of configured characters. An empty string "" shall be
interpreted as 0-sized dynamic signal.
Multiplicity 0..1
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local
dependency: In case of UINT8_N the length of
ComSignalDataInvalidValue has to be the same as ComSignalLength.

Name ComSignalEndianness [ECUC_Com_00157]

Description Defines the endianness of the signals network representation.
Multiplicity 1
Type EcucEnumerationParamDef
Range BIG_ENDIAN
LITTLE_ENDIAN
OPAQUE
Post-Build Variant true
Value

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Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComSignalInitValue [ECUC_Com_00170]

Description Initial value for this signal. In case of UINT8_N the default value is a
string of length ComSignalLength with all bytes set to 0x00. In case of
UINT8_DYN the initial size shall be 0.

In case the ComSignalType is UINT8, UINT16, UINT32, UINT64,

SINT8, SINT16, SINT32, SINT64 the string shall be interpreted as
defined in the chapter Integer Type in the AUTOSAR EcuC
specification. In case the ComSignalType is FLOAT32, FLOAT64 the
string shall be interpreted as defined in the chapter Float Type in the
AUTOSAR EcuC specification. In case the ComSignalType is
BOOLEAN the string shall be interpreted as defined in the chapter
Boolean Type in the AUTOSAR EcuC specification. In case the
ComSignal is a UINT8_N, UINT8_DYN the string shall be interpreted
as a decimal representation of the characters separated by blanks, e.g.
"97 98 100" means a string "abd", where the char "a" is in byte 0(lowest
address), "b" is in byte 1, and "d" is in byte 2 and (highest address).
For the ComSignalType UINT8_DYN the dynamic length shall be set to
the number of configured characters. An empty string "" shall be
interpreted as 0-sized dynamic signal.
Multiplicity 0..1
Type EcucStringParamDef
Default Value 0
Regular Expression
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local
dependency: In case of UINT8_N the length of ComSignalInitValue
has to be the same as ComSignalLength.

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Name ComSignalLength [ECUC_Com_00437]

Description Description: For ComSignalType UINT8_N this parameter specifies the
length n in bytes. For ComSignalType UINT8_DYN it specifies the
maximum length in bytes. For all other types this parameter shall be
ignored.

Range: 0..8 for normal CAN/ LIN I-PDUs, 0..64 for CAN FD I-PDUs,
0..254 for normal FlexRay I-PDUs (all of ComIPduType NORMAL),
0..4294967295 for I-PDUs with ComIPduType TP.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComSignalType [ECUC_Com_00127]

Description The AUTOSAR type of the signal. Whether or not the signal is signed
or unsigned can be found by examining the value of this attribute. This
type could also be used to reserved appropriate storage in AUTOSAR
COM.
Multiplicity 1
Type EcucEnumerationParamDef
Range BOOLEAN
FLOAT32
FLOAT64
SINT16
SINT32
SINT64
SINT8
UINT16
UINT32
UINT64
UINT8
UINT8_DYN
UINT8_N
Post-Build Variant false
Value

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AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComTimeoutSubstitutionValue [ECUC_Com_10006]

Description The signal substitution value will be used in case of a timeout and
ComRxDataTimeoutAction is set to SUBSTITUTE. In case of UINT8_N
the default value is a string of length ComSignalLength with all bytes
set to 0x00.

In case ofUINT8_DYN the initial size shall be 0.

In case the ComSignalType is UINT8, UINT16, UINT32, UINT64,

SINT8, SINT16, SINT32, SINT64 the string shall be interpreted as
defined in the chapter Integer Type in the AUTOSAR EcuC
specification.

In case the ComSignalType is FLOAT32, FLOAT64 the string shall be

interpreted as defined in the chapter Float Type in the AUTOSAR EcuC
specification.

In case the ComSignalType is BOOLEAN the string shall be interpreted

as defined in the chapter Boolean Type in the AUTOSAR EcuC
specification.

In case the ComSignal is a UINT8_N, UINT8_DYN the string shall be

interpreted as a decimal representation of the characters separated by
blanks, e.g. "97 98 100" means a string "abd", where the char "a" is in
byte 0(lowest address), "b" is in byte 1, and "d" is in byte 2 and (highest
address). For the ComSignalType UINT8_DYN the dynamic length
shall be set to the number of configured characters. An empty string ""
shall be interpreted as 0-sized dynamic signal.
Multiplicity 0..1
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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Name ComTransferProperty [ECUC_Com_00560]

Description Optionally defines whether this group signal shall contribute to the
TRIGGERED_ON_CHANGE transfer property of the signal group. If at
least one group signal of a signal group has the "ComTransferProperty"
configured all other group signals of that signal group shall have the
attribute configured as well.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range PENDING A change of the value of this group
signal shall not be considered in the
evaluation of the signal groups
ComTransferProperty.
TRIGGERED_ON_CHAN A change of the value of this group
GE signal shall be considered in the
evaluation of the signal groups
ComTransferProperty.
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComSystemTemplateSystemSignalRef [ECUC_Com_00002]

Description Reference to the ISignalToIPduMapping that contains a reference to
the ISignal (System Template) which this ComSignal (or
ComGroupSignal) represents.
Multiplicity 0..1
Type Foreign reference to I-SIGNAL-TO-I-PDU-MAPPING
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: ECU

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AUTOSAR CP Release 4.3.0

Included Containers
Container Name Multiplicity Scope / Dependency
ComFilter 0..1 This container contains the configuration parameters of
the AUTOSAR COM modules Filters.

Note: On sender side the container is used to specify

the transmission mode conditions.

E.1.2 ComIPdu

SWS Item [ECUC_Com_00340]

Container Name ComIPdu
Description Contains the configuration parameters of the AUTOSAR COM
modules I-PDUs.
Post-Build Variant true
Multiplicity
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Configuration Parameters

Name ComIPduCallout [ECUC_Com_00387]

Description This parameter defines the existence and the name of a callout
function for the corresponding I-PDU. If this parameter is omitted no
I-PDU callout shall take place for the corresponding I-PDU.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name ComIPduCancellationSupport [ECUC_Com_00709]

Description Defines for I-PDUs with ComIPduType NORMAL: If the underlying
IF-modul supports cancellation of transmit requests.

Defines for I-PDUs with ComIPduType TP: If the underlying TP-module

supports RX and TX cancellation of ongoing requests.
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: ECU
dependency: This parameter shall not be set to true if
ComCancellationSupport is set to false

Name ComIPduDirection [ECUC_Com_00493]

Description The direction defines if this I-PDU, and therefore the contributing
signals and signal groups, shall be sent or received.
Multiplicity 1
Type EcucEnumerationParamDef
Range RECEIVE
SEND
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local
dependency: If configured to Sent also a ComTxIpdu container shall
be included, see ECUC_Com_00496

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Name ComIPduHandleId [ECUC_Com_00175]

Description The numerical value used as the ID of this I-PDU. The
ComIPduHandleId is required by the API calls Com_RxIndication,
Com_TpRxIndication, Com_StartOfReception and Com_CopyRxData
to receive I-PDUs from the PduR (ComIP-duDirection: Receive), as
well as the PduId passed to an Rx-I-PDU-callout. For Tx-I-PDUs
(ComIPduDirection: Send), this handle Id is used for the APIs calls
Com_TxConfirmation, Com_TriggerTransmit, Com_TriggerIPDUSend
or Com_TriggerIPDUSendWithMetaData, Com_CopyTxData and
Com_TpTxConfirmation to transmit respectively confirm transmissions
of I-PDUs, as well as the PduId passed to the Tx-I-PDU-callout
configured with ComIPduCallout and/or
ComIPduTriggerTransmitCallout.
Multiplicity 0..1
Type EcucIntegerParamDef (Symbolic Name generated for this parameter)
Range 0 .. 65535
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name ComIPduSignalProcessing [ECUC_Com_00119]

Description For the definition of the two modes Immediate and Deferred.
Multiplicity 1
Type EcucEnumerationParamDef
Range DEFERRED signal indication / confirmations are
deferred for example to a cyclic task
IMMEDIATE the signal indications / confirmations
are performed in Com_RxIndication/
Com_TxConfirmation
Post-Build Variant true
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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Name ComIPduTriggerTransmitCallout [ECUC_Com_00765]

Description If there is a trigger transmit callout defined for this I-PDU this
parameter contains the name of the callout function.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name ComIPduType [ECUC_Com_00761]

Description Defines if this I-PDU is a normal I-PDU that can be sent unfragmented
or if this is a large I-PDU that shall be sent via the Transport Protocol of
the underlying bus.
Multiplicity 1
Type EcucEnumerationParamDef
Range NORMAL sent or received via normal L-PDU
TP sent or received via TP
Post-Build Variant true
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComIPduGroupRef [ECUC_Com_00206]

Description Reference to the I-PDU groups this I-PDU belongs to.
Multiplicity 0..*
Type Reference to ComIPduGroup
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComIPduSignalGroupRef [ECUC_Com_00519]

Description References to all signal groups contained in this I-Pdu
Multiplicity 0..*
Type Reference to ComSignalGroup
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComIPduSignalRef [ECUC_Com_00518]

Description References to all signals contained in this I-PDU.
Multiplicity 0..*
Type Reference to ComSignal
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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Name ComPduIdRef [ECUC_Com_00711]

Description Reference to the "global" Pdu structure to allow harmonization of
handle IDs in the COM-Stack.
Multiplicity 1
Type Reference to Pdu
false
Post-Build Variant
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency

Included Containers
Container Name Multiplicity Scope / Dependency
ComIPduCounter 0..1 This optional container contains the configuration
parameters of PDU Counter.
ComIPduReplication 0..1 This optional container contains the information needed
for each I-PDU replicated.
ComTxIPdu 0..1 This container contains additional transmission related
configuration parameters of the AUTOSAR COM
modules I-PDUs.

E.1.3 ComSignal

SWS Item [ECUC_Com_00344]

Container Name ComSignal
Description Contains the configuration parameters of the AUTOSAR COM
modules signals.
Post-Build Variant true
Multiplicity
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Configuration Parameters

Name ComBitPosition [ECUC_Com_00259]

Description Starting position within the I-PDU. This parameter refers to the position
in the I-PDU and not in the shadow buffer. If the endianness
conversion is configured to Opaque the parameter ComBitPosition
shall define the bit0 of the first byte like in little endian byte order
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value
Post-Build Variant true
Value

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AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComBitSize [ECUC_Com_00158]

Description Size in bits, for integer signal types. For ComSignalType UINT8_N and
UINT8_DYN the size shall be configured by ComSignalLength. For
ComSignalTypes FLOAT32 and FLOAT64 the size is already defined
by the signal type and therefore may be omitted.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 64
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComDataInvalidAction [ECUC_Com_00314]

Description This parameter defines the action performed upon reception of an
invalid signal. Relating to signal groups the action in case if one of the
included signals is an invalid signal. If Replace is used the
ComSignalInitValue will be used for the replacement.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range NOTIFY
REPLACE Literal for DataInvalidAction
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComErrorNotification [ECUC_Com_00499]

Description Only valid on sender side: Name of Com_CbkTxErr callback function
to be called. If this parameter is omitted no error notification shall take
place.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComFirstTimeout [ECUC_Com_00183]

Description Defines the length of the first deadline monitoring timeout period in
seconds. This timeout is used immediately after start (or restart) of the
deadline monitoring service. The timeout period of the successive
periods is configured by ECUC_Com_00263.
Multiplicity 0..1
Type EcucFloatParamDef
Range [0 .. 3600]
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD

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AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComHandleId [ECUC_Com_00165]

Description The numerical value used as the ID.

This ID identifies signals and signal groups in the COM APIs using
Com_SignalIdType or Com_SignalGroupIdType parameter
respectively.
Multiplicity 0..1
Type EcucIntegerParamDef (Symbolic Name generated for this parameter)
Range 0 .. 65535
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name ComInitialValueOnly [ECUC_Com_00811]

Description This parameter defines that the respective signals initial value shall be
put into the respective PDU but there will not be any update of the
value through the RTE. Thus the Com implementation does not need
to expect any API calls for this signal (group).
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time

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AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComInvalidNotification [ECUC_Com_00315]

Description Only valid on receiver side: Name of Com_CbkInv callback function to
be called. Name of the function which notifies the RTE about the
reception of an invalidated signal/ signal group. Only applicable if
ComDataInvalidAction is configured to NOTIFY.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComNotification [ECUC_Com_00498]

Description On sender side: Name of Com_CbkTxAck callback function to be
called. On receiver side: Name of Com_CbkRxAck callback function to
be called.

If this parameter is omitted no notification shall take place.

Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value

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AUTOSAR CP Release 4.3.0

Multiplicity Pre-compile time X VARIANT-PRE-COMPILE

Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComRxDataTimeoutAction [ECUC_Com_00412]

Description This parameter defines the action performed upon expiration of the
reception deadline monitoring timer.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range NONE no replacement shall take place
REPLACE signals shall be replaced by their
ComSignalInitValue
SUBSTITUTE signals shall be replaced by their
ComTimeoutSubstitutionValue
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

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Name ComSignalDataInvalidValue [ECUC_Com_00391]

Description Defines the data invalid value of the signal.

In case the ComSignalType is UINT8, UINT16, UINT32, UINT64,

SINT8, SINT16, SINT32, SINT64 the string shall be interpreted as
defined in the chapter Integer Type in the AUTOSAR EcuC
specification. In case the ComSignalType is FLOAT32, FLOAT64 the
string shall be interpreted as defined in the chapter Float Type in the
AUTOSAR EcuC specification. In case the ComSignalType is
BOOLEAN the string shall be interpreted as defined in the chapter
Boolean Type in the AUTOSAR EcuC specification. In case the
ComSignal is a UINT8_N, UINT8_DYN the string shall be interpreted
as a decimal representation of the characters separated by blanks, e.g.
"97 98 100" means a string "abd", where the char "a" is in byte 0(lowest
address), "b" is in byte 1, and "d" is in byte 2 and (highest address).
For the ComSignalType UINT8_DYN the dynamic length shall be set to
the number of configured characters. An empty string "" shall be
interpreted as 0-sized dynamic signal.
Multiplicity 0..1
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local
dependency: In case of UINT8_N the length of
ComSignalDataInvalidValue has to be the same as ComSignalLength.

Name ComSignalEndianness [ECUC_Com_00157]

Description Defines the endianness of the signals network representation.
Multiplicity 1
Type EcucEnumerationParamDef
Range BIG_ENDIAN
LITTLE_ENDIAN
OPAQUE
Post-Build Variant true
Value

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComSignalInitValue [ECUC_Com_00170]

Description Initial value for this signal. In case of UINT8_N the default value is a
string of length ComSignalLength with all bytes set to 0x00. In case of
UINT8_DYN the initial size shall be 0.

In case the ComSignalType is UINT8, UINT16, UINT32, UINT64,

SINT8, SINT16, SINT32, SINT64 the string shall be interpreted as
defined in the chapter Integer Type in the AUTOSAR EcuC
specification. In case the ComSignalType is FLOAT32, FLOAT64 the
string shall be interpreted as defined in the chapter Float Type in the
AUTOSAR EcuC specification. In case the ComSignalType is
BOOLEAN the string shall be interpreted as defined in the chapter
Boolean Type in the AUTOSAR EcuC specification. In case the
ComSignal is a UINT8_N, UINT8_DYN the string shall be interpreted
as a decimal representation of the characters separated by blanks, e.g.
"97 98 100" means a string "abd", where the char "a" is in byte 0(lowest
address), "b" is in byte 1, and "d" is in byte 2 and (highest address).
For the ComSignalType UINT8_DYN the dynamic length shall be set to
the number of configured characters. An empty string "" shall be
interpreted as 0-sized dynamic signal.
Multiplicity 0..1
Type EcucStringParamDef
Default Value 0
Regular Expression
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local
dependency: In case of UINT8_N the length of ComSignalInitValue
has to be the same as ComSignalLength.

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AUTOSAR CP Release 4.3.0

Name ComSignalLength [ECUC_Com_00437]

Description Description: For ComSignalType UINT8_N this parameter specifies the
length n in bytes. For ComSignalType UINT8_DYN it specifies the
maximum length in bytes. For all other types this parameter shall be
ignored.

Range: 0..8 for normal CAN/ LIN I-PDUs, 0..64 for CAN FD I-PDUs,
0..254 for normal FlexRay I-PDUs (all of ComIPduType NORMAL),
0..4294967295 for I-PDUs with ComIPduType TP.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComSignalType [ECUC_Com_00127]

Description The AUTOSAR type of the signal. Whether or not the signal is signed
or unsigned can be found by examining the value of this attribute. This
type could also be used to reserved appropriate storage in AUTOSAR
COM.
Multiplicity 1
Type EcucEnumerationParamDef
Range BOOLEAN
FLOAT32
FLOAT64
SINT16
SINT32
SINT64
SINT8
UINT16
UINT32
UINT64
UINT8
UINT8_DYN
UINT8_N
Post-Build Variant false
Value

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComTimeout [ECUC_Com_00263]

Description Defines the length of the deadline monitoring timeout period in
seconds. The period for the first timeout period can be configured
separately by ECUC_Com_00183.
Multiplicity 0..1
Type EcucFloatParamDef
Range [0 .. 3600]
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComTimeoutNotification [ECUC_Com_00552]

Description On sender side: Name of Com_CbkTxTOut callback function to be
called. On receiver side: Name of Com_CbkRxTOut callback function
to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComTimeoutSubstitutionValue [ECUC_Com_10006]

Description The signal substitution value will be used in case of a timeout and
ComRxDataTimeoutAction is set to SUBSTITUTE. In case of UINT8_N
the default value is a string of length ComSignalLength with all bytes
set to 0x00.

In case ofUINT8_DYN the initial size shall be 0.

In case the ComSignalType is UINT8, UINT16, UINT32, UINT64,

SINT8, SINT16, SINT32, SINT64 the string shall be interpreted as
defined in the chapter Integer Type in the AUTOSAR EcuC
specification.

In case the ComSignalType is FLOAT32, FLOAT64 the string shall be

interpreted as defined in the chapter Float Type in the AUTOSAR EcuC
specification.

In case the ComSignalType is BOOLEAN the string shall be interpreted

as defined in the chapter Boolean Type in the AUTOSAR EcuC
specification.

In case the ComSignal is a UINT8_N, UINT8_DYN the string shall be

interpreted as a decimal representation of the characters separated by
blanks, e.g. "97 98 100" means a string "abd", where the char "a" is in
byte 0(lowest address), "b" is in byte 1, and "d" is in byte 2 and (highest
address). For the ComSignalType UINT8_DYN the dynamic length
shall be set to the number of configured characters. An empty string ""
shall be interpreted as 0-sized dynamic signal.
Multiplicity 0..1
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComTransferProperty [ECUC_Com_00232]

Description Defines if a write access to this signal can trigger the transmission of
the corresponding I-PDU. If the I-PDU is triggered, depends also on
the transmission mode of the corresponding I-PDU.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range PENDING A write access to this signal never
triggers the transmission of the
corresponding I-PDU.
TRIGGERED Depending on the transmission mode,
a write access to this signal can trigger
the transmission of the corresponding
I-PDU.
TRIGGERED_ON_CHAN Depending on the transmission mode,
GE a write access to this signal can trigger
the transmission of the corresponding
I-PDU, but only in case the written
value is different to the locally stored
(last sent or initial value) in length or
value.
TRIGGERED_ON_CHAN Depending on the transmission mode,
GE_WITHOUT_REPETITI a write access to this signal can trigger
ON the transmission of the corresponding
I-PDU just once without a repetition,
but only in case the written value is
different to the locally stored (last sent
or initial value) in length or value.
TRIGGERED_WITHOUT_ Depending on the transmission mode,
REPETITION a write access to this signal can trigger
the transmission of the corresponding
I-PDU just once without a repetition.
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComUpdateBitPosition [ECUC_Com_00257]

Description Bit position of update-bit inside I-PDU. If this attribute is omitted then
there is no update-bit. This setting must be consistently on sender and
on receiver side.

Range: 0..63 for CAN and LIN, 0..511 for CAN FD, 0..2031 for FlexRay,
0..4294967295 for TP.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComSystemTemplateSystemSignalRef [ECUC_Com_00002]

Description Reference to the ISignalToIPduMapping that contains a reference to
the ISignal (System Template) which this ComSignal (or
ComGroupSignal) represents.
Multiplicity 0..1
Type Foreign reference to I-SIGNAL-TO-I-PDU-MAPPING
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: ECU

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Included Containers
Container Name Multiplicity Scope / Dependency
ComFilter 0..1 This container contains the configuration parameters of
the AUTOSAR COM modules Filters.

Note: On sender side the container is used to specify

the transmission mode conditions.

E.1.4 ComSignalGroup

SWS Item [ECUC_Com_00345]

Container Name ComSignalGroup
Description Contains the configuration parameters of the AUTOSAR COM
modules signal groups.
Post-Build Variant true
Multiplicity
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Configuration Parameters

Name ComDataInvalidAction [ECUC_Com_00314]

Description This parameter defines the action performed upon reception of an
invalid signal. Relating to signal groups the action in case if one of the
included signals is an invalid signal. If Replace is used the
ComSignalInitValue will be used for the replacement.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range NOTIFY
REPLACE Literal for DataInvalidAction
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComErrorNotification [ECUC_Com_00499]

Description Only valid on sender side: Name of Com_CbkTxErr callback function
to be called. If this parameter is omitted no error notification shall take
place.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComFirstTimeout [ECUC_Com_00183]

Description Defines the length of the first deadline monitoring timeout period in
seconds. This timeout is used immediately after start (or restart) of the
deadline monitoring service. The timeout period of the successive
periods is configured by ECUC_Com_00263.
Multiplicity 0..1
Type EcucFloatParamDef
Range [0 .. 3600]
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComHandleId [ECUC_Com_00165]

Description The numerical value used as the ID.

This ID identifies signals and signal groups in the COM APIs using
Com_SignalIdType or Com_SignalGroupIdType parameter
respectively.
Multiplicity 0..1
Type EcucIntegerParamDef (Symbolic Name generated for this parameter)
Range 0 .. 65535
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name ComInitialValueOnly [ECUC_Com_00811]

Description This parameter defines that the respective signals initial value shall be
put into the respective PDU but there will not be any update of the
value through the RTE. Thus the Com implementation does not need
to expect any API calls for this signal (group).
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComInvalidNotification [ECUC_Com_00315]

Description Only valid on receiver side: Name of Com_CbkInv callback function to
be called. Name of the function which notifies the RTE about the
reception of an invalidated signal/ signal group. Only applicable if
ComDataInvalidAction is configured to NOTIFY.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComNotification [ECUC_Com_00498]

Description On sender side: Name of Com_CbkTxAck callback function to be
called. On receiver side: Name of Com_CbkRxAck callback function to
be called.

If this parameter is omitted no notification shall take place.

Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComRxDataTimeoutAction [ECUC_Com_00412]

Description This parameter defines the action performed upon expiration of the
reception deadline monitoring timer.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range NONE no replacement shall take place
REPLACE signals shall be replaced by their
ComSignalInitValue
SUBSTITUTE signals shall be replaced by their
ComTimeoutSubstitutionValue
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

Name ComSignalGroupArrayAccess [ECUC_Com_10003]

Description Defines whether the uint8-array based access shall be used for this
ComSignalGroup.
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComTimeout [ECUC_Com_00263]

Description Defines the length of the deadline monitoring timeout period in
seconds. The period for the first timeout period can be configured
separately by ECUC_Com_00183.
Multiplicity 0..1
Type EcucFloatParamDef
Range [0 .. 3600]
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComTimeoutNotification [ECUC_Com_00552]

Description On sender side: Name of Com_CbkTxTOut callback function to be
called. On receiver side: Name of Com_CbkRxTOut callback function
to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: local

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComTransferProperty [ECUC_Com_00232]

Description Defines if a write access to this signal can trigger the transmission of
the corresponding I-PDU. If the I-PDU is triggered, depends also on
the transmission mode of the corresponding I-PDU.
Multiplicity 0..1
Type EcucEnumerationParamDef
Range PENDING A write access to this signal never
triggers the transmission of the
corresponding I-PDU.
TRIGGERED Depending on the transmission mode,
a write access to this signal can trigger
the transmission of the corresponding
I-PDU.
TRIGGERED_ON_CHAN Depending on the transmission mode,
GE a write access to this signal can trigger
the transmission of the corresponding
I-PDU, but only in case the written
value is different to the locally stored
(last sent or initial value) in length or
value.
TRIGGERED_ON_CHAN Depending on the transmission mode,
GE_WITHOUT_REPETITI a write access to this signal can trigger
ON the transmission of the corresponding
I-PDU just once without a repetition,
but only in case the written value is
different to the locally stored (last sent
or initial value) in length or value.
TRIGGERED_WITHOUT_ Depending on the transmission mode,
REPETITION a write access to this signal can trigger
the transmission of the corresponding
I-PDU just once without a repetition.
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name ComUpdateBitPosition [ECUC_Com_00257]

Description Bit position of update-bit inside I-PDU. If this attribute is omitted then
there is no update-bit. This setting must be consistently on sender and
on receiver side.

Range: 0..63 for CAN and LIN, 0..511 for CAN FD, 0..2031 for FlexRay,
0..4294967295 for TP.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: local

Name ComSystemTemplateSignalGroupRef [ECUC_Com_00001]

Description Reference to the ISignalToIPduMapping that contains a reference to
the ISignalGroup (SystemTemplate) which this ComSignalGroup
represents.
Multiplicity 0..1
Type Foreign reference to I-SIGNAL-TO-I-PDU-MAPPING
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: ECU

Included Containers
Container Name Multiplicity Scope / Dependency
ComGroupSignal 0..* This container contains the configuration parameters of
group signals. I.e. signals that are included within a
signal group.

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

E.2 LdCom

Module SWS Item ECUC_LdCom_00001

Module Name LdCom
Module Description Configuration of the AUTOSAR LdCom module.
Post-Build Variant true
Support
Supported Config VARIANT-LINK-TIME, VARIANT-POST-BUILD, VARIANT-PRE-
Variants COMPILE
Included Containers
Container Name Multiplicity Scope / Dependency
LdComConfig 1 This container contains the configuration parameters
and sub containers of the AUTOSAR LdCom module.
LdComGeneral 1 Contains the general configuration parameters of the
LdCom module.

E.2.1 LdComConfig

SWS Item [ECUC_LdCom_00003]

Container Name LdComConfig
Description This container contains the configuration parameters and sub
containers of the AUTOSAR LdCom module.
Configuration Parameters

Included Containers
Container Name Multiplicity Scope / Dependency
LdComIPdu 0..* Contains the configuration parameters of the IPdu inside
LdCom.

E.2.2 LdComIPdu

SWS Item [ECUC_LdCom_00006]

Container Name LdComIPdu
Description Contains the configuration parameters of the IPdu inside LdCom.
Post-Build Variant true
Multiplicity
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Configuration Parameters

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name LdComApiType [ECUC_LdCom_00002]

Description Defines if this I-PDU is a normal I-PDU that shall be sent unfragmented
or if this is a large I-PDU that shall be sent via the Transport Protocol of
the underlying bus.

This setting is used by RTE to invoke the proper API.

Multiplicity 1
Type EcucEnumerationParamDef
Range LDCOM_IF sent or received via interface API.
LDCOM_TP sent or received via transport protocol
API.
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

Name LdComHandleId [ECUC_LdCom_00005]

Description This is the ID used by RTE to invoke LdCom. A corresponding
shortName is created, which is used for the invocations of the RTE.
The same ID is used for invocations by PduR.
Multiplicity 1
Type EcucIntegerParamDef (Symbolic Name generated for this parameter)
Range 0 .. 65535
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name LdComIPduDirection [ECUC_LdCom_00007]

Description The direction defines if this IPdu, and therefore the contributing signal,
shall be sent or received.
Multiplicity 1
Type EcucEnumerationParamDef
Range LDCOM_RECEIVE
LDCOM_SEND
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Scope / Dependency scope: local

Name LdComRxCopyRxData [ECUC_LdCom_00013]

Description Only on receiver side: Name of Rte_LdComCbkCopyRxData callback
function to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

Name LdComRxIndication [ECUC_LdCom_00014]

Description Only on receiver side: Name of Rte_LdComCbkRxIndication callback
function to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Name LdComRxStartOfReception [ECUC_LdCom_00015]

Description Only on receiver side: Name of Rte_LdComCbkStartOfReception
callback function to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

Name LdComTpRxIndication [ECUC_LdCom_00016]

Description Only on receiver side: Name of Rte_LdComCbkTpRxIndication
callback function to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Name LdComTpTxConfirmation [ECUC_LdCom_00017]

Description Only on sender side: Name of Rte_LdComCbkTpTxConfirmation
callback function to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

Name LdComTxConfirmation [ECUC_LdCom_00021]

Description Only on sender side: Name of Rte_LdComCbkTxConfirmation callback
function to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

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Name LdComTxCopyTxData [ECUC_LdCom_00018]

Description Only on sender side: Name of Rte_LdComCbkCopyTxData callback
function to be called.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

Name LdComTxTriggerTransmit [ECUC_LdCom_00019]

Description Only on sender side: Name of Rte_LdComCbkTriggerTransmit callback
function to be called. If defined TriggerTransmit has to be supported for
this signal.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Name LdComPduRef [ECUC_LdCom_00010]

Description Reference to the global Pdu.
Multiplicity 1
Type Reference to Pdu
false
Post-Build Variant
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME,
VARIANT-POST-BUILD
Post-build time
Scope / Dependency scope: ECU

Name LdComSystemTemplateSignalRef [ECUC_LdCom_00011]

Description Reference to the ISignalToIPduMapping that contains a reference to
the ISignal (System Template).
Multiplicity 0..1
Type Foreign reference to I-SIGNAL-TO-I-PDU-MAPPING
Post-Build Variant true
Multiplicity
Post-Build Variant true
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time X VARIANT-POST-BUILD
Scope / Dependency scope: ECU

No Included Containers

E.3 EcuC

Module SWS Item ECUC_EcuC_00008

Module Name EcuC
Module Description Virtual module to collect ECU Configuration specific / global
configuration information.
Post-Build Variant true
Support
Supported Config VARIANT-POST-BUILD, VARIANT-PRE-COMPILE
Variants
Included Containers
Container Name Multiplicity Scope / Dependency

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 Specification of RTE
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Container Name Multiplicity Scope / Dependency

EcucConfigSet 0..1 This container contains the configuration parameters
and sub containers of the global PduCollection.
EcucHardware 0..1 Hardware definition of this Ecu.
EcucPartitionCollection 0..1 Collection of Partitions defined for this ECU.
EcucPostBuildVariants 0..1 Collection of toplevel PostBuildSelectable variants.
The PredefinedVariants linked inside this container will
determine how many PostBuildSelectableVariants
exist. If this container exist the name pattern for
initialization of BSW modules will be
<Mip>_Config_<PredefinedVariant.shortName>. If this
container does not exist the name pattern for
initialization of BSW modlues will be <Mip>_Config.
EcucUnitGroupAssignment 0..1 Collection of UnitGroup references to support the
generation of ASAM MCD file.
EcucVariationResolver 0..1 Collection of PredefinedVariant elements containing
definition of values for SwSystemconst which shall be
applied when resolving the variability during ECU
Configuration.

E.3.1 EcucPartition

SWS Item [ECUC_EcuC_00005]

Container Name EcucPartition
Description Definition of one Partition on this ECU. One Partition will be
implemented using one Os-Application.
Post-Build Variant false
Multiplicity
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE,
Configuration Class VARIANT-POST-BUILD
Link time
Post-build time
Configuration Parameters

Name EcucPartitionBswModuleExecution [ECUC_EcuC_00037]

Description Denotes that this partition will execute BSW Modules. BSW Modules
can only be executed in such partitions.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

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AUTOSAR CP Release 4.3.0

Name EcucPartitionQmBswModuleExecution [ECUC_EcuC_00069]

Description Denotes that this partition will execute QM BSW.
Multiplicity 1
Type EcucBooleanParamDef
Default Value true
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name PartitionCanBeRestarted [ECUC_EcuC_00006]

Description Specifies the requirement whether the Partition can be restarted. If set
to true all software executing in this partition shall be capable of
handling a restart.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

Name EcucPartitionBswModuleDistinguishedPartition [ECUC_EcuC_00068]

Description This maps the abstract partition of the Bsw Module to a concrete
Partition existing in the ECU.
Multiplicity 0..*
Type Foreign reference to BSW-DISTINGUISHED-PARTITION
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

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Name EcucPartitionSoftwareComponentInstanceRef [ECUC_EcuC_00036]

Description References the SW Component instances from the Ecu Extract that
shall be executed in this partition.
Multiplicity 0..*
Type Instance reference to SW-COMPONENT-PROTOTYPE context: ROO
T-SW-COMPOSITION-PROTOTYPE
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

No Included Containers

E.4 NvM

E.4.1 NvMBlockDescriptor

SWS Item [ECUC_NvM_00061]

Container Name NvMBlockDescriptor
Description Container for a management structure to configure the composition of
a given NVRAM Block Management Type. Its multiplicity describes the
number of configured NVRAM blocks, one block is required to be
configured. The NVRAM block descriptors are condensed in the
NVRAM block descriptor table.
Configuration Parameters

Name NvMBlockCrcType [ECUC_NvM_00476]

Description Defines CRC data width for the NVRAM block. Default: NVM_CRC16,
i.e. CRC16 will be used if NVM_BLOCK_USE_CRC==true
Multiplicity 0..1
Type EcucEnumerationParamDef
Range NVM_CRC16 (Default) CRC16 will be used if
NVM_BLOCK_USE_CRC==true.
NVM_CRC32 CRC32 is selected for this NVRAM
block if
NVM_BLOCK_USE_CRC==true.
NVM_CRC8 CRC8 is selected for this NVRAM block
if NVM_BLOCK_USE_CRC==true.

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Post-Build Variant false

Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local
dependency: NVM_BLOCK_USE_CRC,
NVM_CALC_RAM_BLOCK_CRC

Name NvMBlockHeaderInclude [ECUC_NvM_00554]

Description Defines the header file where the owner of the NVRAM block has the
declarations of the permanent RAM data block, ROM data block (if
configured) and the callback function prototype for each configured
callback. If no permanent RAM block, ROM block or callback functions
are configured then this configuration parameter shall be ignored.
Multiplicity 0..1
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBlockJobPriority [ECUC_NvM_00477]

Description Defines the job priority for a NVRAM block (0 = Immediate priority).
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 255
Default Value
Post-Build Variant false
Value

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Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBlockManagementType [ECUC_NvM_00062]

Description Defines the block management type for the NVRAM block.[NVM137]
Multiplicity 1
Type EcucEnumerationParamDef
Range NVM_BLOCK_DATASET NVRAM block is configured to be of
dataset type.
NVM_BLOCK_NATIVE NVRAM block is configured to be of
native type.
NVM_BLOCK_REDUNDA NVRAM block is configured to be of
NT redundant type.
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBlockUseAutoValidation [ECUC_NvM_00557]

Description Defines whether the RAM Block shall be auto validated during
shutdown phase.

true: if auto validation mechanism is used, false: otherwise

Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBlockUseCrc [ECUC_NvM_00036]

Description Defines CRC usage for the NVRAM block, i.e. memory space for CRC
is reserved in RAM and NV memory.

true: CRC will be used for this NVRAM block. false: CRC will not be
used for this NVRAM block.
Multiplicity 1
Type EcucBooleanParamDef
Default Value

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Post-Build Variant false

Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBlockUseCRCCompMechanism [ECUC_NvM_00556]

Description Defines whether the CRC of the RAM Block shall be compared during
a write job with the CRC which was calculated during the last
successful read or write job.

true: if compare mechanism is used, false: otherwise

Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBlockUseSetRamBlockStatus [ECUC_NvM_00552]

Description Defines if NvMSetRamBlockStatusApi shall be used for this block or
not.

Note: If NvMSetRamBlockStatusApi is disabled this configuration

parameter shall be ignored.

true: calling of NvMSetRamBlockStatus for this RAM block shall set the
status of the RAM block.

false: calling of NvMSetRamBlockStatus for this RAM block shall be

ignored.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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AUTOSAR CP Release 4.3.0

Name NvMBlockUseSyncMechanism [ECUC_NvM_00519]

Description Defines whether an explicit synchronization mechanism with a RAM
mirror and callback routines for transferring data to and from NvM
modules RAM mirror is used for NV block. true if synchronization
mechanism is used, false otherwise.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBlockWriteProt [ECUC_NvM_00033]

Description Defines an initial write protection of the NV block

true: Initial block write protection is enabled. false: Initial block write
protection is disabled.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMBswMBlockStatusInformation [ECUC_NvM_00551]

Description This parameter specifies whether BswM is informed about the current
status of the specified block.

True: Call BswM_NvM_CurrentBlockMode on changes False: Dont

inform BswM at all
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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AUTOSAR CP Release 4.3.0

Name NvMCalcRamBlockCrc [ECUC_NvM_00119]

Description Defines CRC (re)calculation for the permanent RAM block or NVRAM
blocks which are configured to use explicit synchronization mechanism.

true: CRC will be (re)calculated for this permanent RAM block. false:
CRC will not be (re)calculated for this permanent RAM block.
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local
dependency: NVM_BLOCK_USE_CRC

Name NvMInitBlockCallback [ECUC_NvM_00116]

Description Entry address of a block specific callback routine which shall be called
if no ROM data is available for initialization of the NVRAM block.

If not configured, no specific callback routine shall be called for

initialization of the NVRAM block with default data.
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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AUTOSAR CP Release 4.3.0

Name NvMMaxNumOfReadRetries [ECUC_NvM_00533]

Description Defines the maximum number of read retries.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 7
Default Value 0
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMMaxNumOfWriteRetries [ECUC_NvM_00499]

Description Defines the maximum number of write retries for a NVRAM block with
[ECUC_NvM_00061]. Regardless of configuration a consistency check
(and maybe write retries) are always forced for each block which is
processed by the request NvM_WriteAll and NvM_WriteBlock.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 7
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMNvBlockBaseNumber [ECUC_NvM_00478]

Description Configuration parameter to perform the link between the
NVM_NVRAM_BLOCK_IDENTIFIER used by the SW-Cs and the
FEE_BLOCK_NUMBER expected by the memory abstraction modules.
The parameter value equals the FEE_BLOCK_NUMBER or
EA_BLOCK_NUMBER shifted to the right by NvMDatasetSelectionBits
bits. (ref. to chapter 7.1.2.1).

Calculation Formula: value = TargetBlockRefer-

ence.[Ea/Fee]BlockConfiguration.[Ea/Fee]BlockNumber
NvMDatasetSelectionBits
Multiplicity 1
Type EcucIntegerParamDef
Range 1 .. 65534
Default Value
Post-Build Variant false
Value

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AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local
dependency: FEE_BLOCK_NUMBER, EA_BLOCK_NUMBER

Name NvMNvBlockLength [ECUC_NvM_00479]

Description Defines the NV block data length in bytes.

Note: The implementer can add the attribute withAuto to the

parameter definition which indicates that the length can be calculated
by the generator automatically (e.g. by using the sizeof operator).
When withAuto is set to true for this parameter definition the
isAutoValue can be set to true. If isAutoValue is set to true the
actual value will not be considered during ECU Configuration but will
be (re-)calculated by the code generator and stored in the value
attribute afterwards.
Multiplicity 1
Type EcucIntegerParamDef
Range 1 .. 65535
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMNvBlockNum [ECUC_NvM_00480]

Description Defines the number of multiple NV blocks in a contiguous area
according to the given block management type.

1-255 For NVRAM blocks to be configured of block management type

NVM_BLOCK_DATASET. The actual range is limited according to
SWS_NvM_00444.

1 For NVRAM blocks to be configured of block management type

NVM_BLOCK_NATIVE

2 For NVRAM blocks to be configured of block management type

NVM_BLOCK_REDUNDANT
Multiplicity 1
Type EcucIntegerParamDef
Range 1 .. 255
Default Value
Post-Build Variant false
Value

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Value Configuration Pre-compile time X VARIANT-PRE-COMPILE

Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local
dependency: NVM_BLOCK_MANAGEMENT_TYPE

Name NvMNvramBlockIdentifier [ECUC_NvM_00481]

Description Identification of a NVRAM block via a unique block identifier.

Implementation Type: NvM_BlockIdType.

min = 1 max = 2 (16- NVM_DATASET_SELECTION_BITS)-1

Reserved NVRAM block IDs: 0 -> to derive multi block request results
via NvM_GetErrorStatus 1 -> redundant NVRAM block which holds the
configuration ID (generation tool should check that this block is
correctly configured from type,CRC and size point of view)
Multiplicity 1
Type EcucIntegerParamDef (Symbolic Name generated for this parameter)
Range 1 .. 65535
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local
dependency: NVM_DATASET_SELECTION_BITS

Name NvMNvramDeviceId [ECUC_NvM_00035]

Description Defines the NVRAM device ID where the NVRAM block is located.

Calculation Formula: value = TargetBlockRefer-

ence.[Ea/Fee]BlockConfiguration.[Ea/Fee]DeviceIndex
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 1
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local
dependency: EA_DEVICE_INDEX, FEE_DEVICE_INDEX

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Name NvMRamBlockDataAddress [ECUC_NvM_00482]

Description Defines the start address of the RAM block data.

If this is not configured, no permanent RAM data block is available for

the selected block management type.
Multiplicity 0..1
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMReadRamBlockFromNvCallback [ECUC_NvM_00521]

Description Entry address of a block specific callback routine which shall be called
in order to let the application copy data from the NvM modules mirror
to RAM block. Implementation type: Std_ReturnType

E_OK: copy was successful E_NOT_OK: copy was not successful,

callback routine to be called again
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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AUTOSAR CP Release 4.3.0

Name NvMResistantToChangedSw [ECUC_NvM_00483]

Description Defines whether a NVRAM block shall be treated resistant to
configuration changes or not. If there is no default data available at
configuration time then the application shall be responsible for
providing the default initialization data. In this case the application has
to use NvM_GetErrorStatus()to be able to distinguish between first
initialization and corrupted data.

true: NVRAM block is resistant to changed software. false: NVRAM

block is not resistant to changed software.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMRomBlockDataAddress [ECUC_NvM_00484]

Description Defines the start address of the ROM block data.

If not configured, no ROM block is available for the selected block

management type.
Multiplicity 0..1
Type EcucStringParamDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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 Specification of RTE
AUTOSAR CP Release 4.3.0

Name NvMRomBlockNum [ECUC_NvM_00485]

Description Defines the number of multiple ROM blocks in a contiguous area
according to the given block management type.

0-254 For NVRAM blocks to be configured of block management type

NVM_BLOCK_DATASET. The actual range is limited according to
SWS_NvM_00444.

0-1 For NVRAM blocks to be configured of block management type

NVM_BLOCK_NATIVE

0-1 For NVRAM blocks to be configured of block management type

NVM_BLOCK_REDUNDANT
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 254
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local
dependency: NVM_BLOCK_MANAGEMENT_TYPE,
NVM_NV_BLOCK_NUM

Name NvMSelectBlockForFirstInitAll {NVM_SELECT_BLOCK_FOR_FIRST_I

NIT_ALL} [ECUC_NvM_00558]
Description Defines whether a block will be processed or not by NvM_FirstInitAll. A
block can be configured to be processed even if it doesnt have
permanent RAM and/or explicit synchronization.

TRUE: block will be processed by NvM_FirstInitAll

FALSE: block will not be processed by NvM_FirstInitAll

Multiplicity 0..1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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Name NvMSelectBlockForReadAll [ECUC_NvM_00117]

Description Defines whether a NVRAM block shall be processed during
NvM_ReadAll or not. This configuration parameter has only influence
on those NVRAM blocks which are configured to have a permanent
RAM block or which are configured to use explicit synchronization
mechanism.

true: NVRAM block shall be processed by NvM_ReadAll false: NVRAM

block shall not be processed by NvM_ReadAll
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local
dependency: NVM_RAM_BLOCK_DATA_ADDRESS

Name NvMSelectBlockForWriteAll [ECUC_NvM_00549]

Description Defines whether a NVRAM block shall be processed during
NvM_WriteAll or not. This configuration parameter has only influence
on those NVRAM blocks which are configured to have a permanent
RAM block or which are configured to use explicit synchronization
mechanism.

true: NVRAM block shall be processed by NvM_WriteAll false: NVRAM

block shall not be processed by NvM_WriteAll
Multiplicity 0..1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time

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Scope / Dependency scope: local

dependency: NVM_RAM_BLOCK_DATA_ADDRESS

Name NvMSingleBlockCallback [ECUC_NvM_00506]

Description Entry address of the block specific callback routine which shall be
invoked on termination of each asynchronous single block request
[NVM113].
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMStaticBlockIDCheck [ECUC_NvM_00532]

Description Defines if the Static Block ID check is enabled.

false: Static Block ID check is disabled. true: Static Block ID check is

enabled.
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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Name NvMWriteBlockOnce [ECUC_NvM_00072]

Description Defines write protection after first write. The NVRAM manager sets the
write protection bit after the NV block was written the first time. This
means that some of the NV blocks in the NVRAM should never be
erased nor be replaced with the default ROM data after first
initialization. [NVM276].

true: Defines write protection after first write is enabled. false: Defines
write protection after first write is disabled.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMWriteRamBlockToNvCallback [ECUC_NvM_00520]

Description Entry address of a block specific callback routine which shall be called
in order to let the application copy data from RAM block to NvM
modules mirror. Implementation type: Std_ReturnType

E_OK: copy was successful E_NOT_OK: copy was not successful,

callback routine to be called again
Multiplicity 0..1
Type EcucFunctionNameDef
Default Value
Regular Expression
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X VARIANT-PRE-COMPILE
Configuration Class
Link time X VARIANT-LINK-TIME
Post-build time
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

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Name NvMWriteVerification [ECUC_NvM_00534]

Description Defines if Write Verification is enabled.

false: Write verification is disabled. true: Write Verification is enabled.

Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Name NvMWriteVerificationDataSize [ECUC_NvM_00538]

Description Defines the number of bytes to compare in each step when comparing
the content of a RAM Block and a block read back.
Multiplicity 1
Type EcucIntegerParamDef
Range 1 .. 65535
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X VARIANT-PRE-COMPILE
Class
Link time X VARIANT-LINK-TIME
Post-build time
Scope / Dependency scope: local

Included Containers
Container Name Multiplicity Scope / Dependency
NvMTargetBlock 1 This parameter is just a container for the parameters for
Reference EA and FEE

E.5 Os

E.5.1 OsAlarm

SWS Item [ECUC_Os_00003]

Container Name OsAlarm
Description An OsAlarm may be used to asynchronously inform or activate a
specific task. It is possible to start alarms automatically at system
start-up depending on the application mode.
Configuration Parameters

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Name OsAlarmAccessingApplication [ECUC_Os_00004]

Description Reference to applications which have an access to this object.
Multiplicity 0..*
Type Reference to OsApplication
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

Name OsAlarmCounterRef [ECUC_Os_00005]

Description Reference to the assigned counter for that alarm
Multiplicity 1
Type Reference to OsCounter
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Included Containers
Container Name Multiplicity Scope / Dependency
OsAlarmAction 1 This container defines which type of notification is used
when the alarm expires.
OsAlarmAutostart 0..1 If present this container defines if an alarm is started
automatically at system start-up depending on the
application mode.

E.5.2 OsApplication

SWS Item [ECUC_Os_00114]

Container Name OsApplication

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Description An AUTOSAR OS must be capable of supporting a collection of OS

objects (tasks, interrupts, alarms, hooks etc.) that form a cohesive
functional unit. This collection of objects is termed an OS-Application.

All objects which belong to the same OS-Application have access to

each other. Access means to allow to use these objects within API
services.

Access by other applications can be granted separately.

Configuration Parameters

Name OsTrusted [ECUC_Os_00115]

Description Parameter to specify if an OS-Application is trusted or not.

true: OS-Application is trusted false: OS-Application is not trusted

(default)
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU
dependency: Required for scalability class 3 and 4.

Name OsTrustedApplicationDelayTimingViolationCall [ECUC_Os_00395]

Description Parameter to specify if a timing violation which occurs within an trusted
OS-Application is raised immediately of if it is delayed until the current
task returns to the calling OS-Application (return of
CallTrustedFunction) true: violation / call to ProtectionHook() is delayed
false: timing violation cause an immediate call to the ProtectionHook().
Multiplicity 1
Type EcucBooleanParamDef
Default Value true
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

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Name OsTrustedApplicationWithProtection [ECUC_Os_00394]

Description Parameter to specify if a trusted OS-Application is executed with
memory protection or not.

true: OS-Application runs within a protected environment. This means

that write access is limited. false: OS-Application has full write access
(default)
Multiplicity 1
Type EcucBooleanParamDef
Default Value false
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsAppAlarmRef [ECUC_Os_00231]

Description Specifies the OsAlarms that belong to the OsApplication.
Multiplicity 0..*
Type Reference to OsAlarm
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsAppCounterRef [ECUC_Os_00234]

Description References the OsCounters that belong to the OsApplication.
Multiplicity 0..*
Type Reference to OsCounter
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsAppEcucPartitionRef [ECUC_Os_00392]

Description Denotes which "EcucPartition" is implemented by this "OSApplication".
Multiplicity 0..1
Type Reference to EcucPartition
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

Name OsAppIsrRef [ECUC_Os_00221]

Description references which OsIsrs belong to the OsApplication
Multiplicity 0..*
Type Reference to OsIsr
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

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Name OsApplicationCoreRef [ECUC_Os_00393]

Description Reference to the Core Definition in the Ecuc Module where the CoreId
is defined. This reference is used to describe to which Core the
OsApplication is bound.
Multiplicity 0..1
Type Reference to EcucCoreDefinition
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name OsAppScheduleTableRef [ECUC_Os_00230]

Description References the OsScheduleTables that belong to the OsApplication.
Multiplicity 0..*
Type Reference to OsScheduleTable
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsAppTaskRef [ECUC_Os_00116]

Description references which OsTasks belong to the OsApplication
Multiplicity 0..*
Type Reference to OsTask
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsRestartTask [ECUC_Os_00120]

Description Optionally one task of an OS-Application may be defined as Restart
Task.

Multiplicity = 1: Restart Task is activated by the Operating System if the

protection hook requests it.

Multiplicity = 0: No task is automatically started after a protection error

happened.
Multiplicity 0..1
Type Reference to OsTask
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU
dependency: Required for scalability class 3 and 4.

Included Containers
Container Name Multiplicity Scope / Dependency
OsApplicationHooks 1 Container to structure the OS-Application-specific hooks
OsApplicationTrusted 0..* Container to structure the configuration parameters of
Function trusted functions

E.5.3 OsCounter

SWS Item [ECUC_Os_00026]

Container Name OsCounter
Description Configuration information for the counters that belong to the
OsApplication.
Configuration Parameters

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Name OsCounterMaxAllowedValue [ECUC_Os_00027]

Description Maximum possible allowed value of the system counter in ticks.
Multiplicity 1
Type EcucIntegerParamDef
Range 1 ..
18446744073709551615
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name OsCounterMinCycle [ECUC_Os_00028]

Description The MINCYCLE attribute specifies the minimum allowed number of
counter ticks for a cyclic alarm linked to the counter.
Multiplicity 1
Type EcucIntegerParamDef
Range 1 ..
18446744073709551615
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name OsCounterTicksPerBase [ECUC_Os_00029]

Description The TICKSPERBASE attribute specifies the number of ticks required to
reach a counterspecific unit. The interpretation is
implementation-specific.
Multiplicity 1
Type EcucIntegerParamDef
Range 1 .. 4294967295
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name OsCounterType [ECUC_Os_00255]

Description This parameter contains the natural type or unit of the counter.
Multiplicity 1
Type EcucEnumerationParamDef
Range HARDWARE This counter is driven by some
hardware e.g. a hardware timer unit.
SOFTWARE The counter is driven by some software
which calls the IncrementCounter
service.
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsSecondsPerTick [ECUC_Os_00030]

Description Time of one counter tick in seconds.
Multiplicity 0..1
Type EcucFloatParamDef
Range [0 .. INF]
Default Value
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsCounterAccessingApplication [ECUC_Os_00031]

Description Reference to applications which have an access to this object.
Multiplicity 0..*
Type Reference to OsApplication
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time

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Value Configuration Pre-compile time X All Variants

Class
Link time
Post-build time
Scope / Dependency scope: local

Included Containers
Container Name Multiplicity Scope / Dependency
OsDriver 0..1 This Container contains the information who will drive
the counter. This configuration is only valid if the counter
has OsCounterType set to HARDWARE.

If the container does not exist (multiplicity=0) the timer is

managed by the OS internally (OSINTERNAL).

If the container exists the OS can use the GPT interface

to manage the timer. The user have to supply the GPT
channel.

If the counter is driven by some other (external to the

OS) source (like a TPU for example) this must be
described as a vendor specific extension.
OsTimeConstant 0..* Allows the user to define constants which can be e.g.
used to compare time values with timer tick values.
A time value will be converted to a timer tick
value during generation and can later on accessed
via the OsConstName. The conversation is done by
rounding time values to the nearest fitting tick
value.

E.5.4 OsEvent

SWS Item [ECUC_Os_00033]

Container Name OsEvent
Description Representation of OS events in the configuration context. Adopted
from the OSEK OIL specification.
Configuration Parameters

Name OsEventMask [ECUC_Os_00034]

Description If event mask would be set to AUTO in OIL, this parameter should be
omitted here.
Multiplicity 0..1
Type EcucIntegerParamDef
Range 0 ..
18446744073709551615
Default Value
Post-Build Variant false
Multiplicity

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Post-Build Variant false

Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

No Included Containers

E.5.5 OsScheduleTable

SWS Item [ECUC_Os_00141]

Container Name OsScheduleTable
Description An OsScheduleTable addresses the synchronization issue by providing
an encapsulation of a statically defined set of alarms that cannot be
modified at runtime.
Configuration Parameters

Name OsScheduleTableDuration [ECUC_Os_00053]

Description This parameter defines the modulus of the schedule table (in ticks).
Multiplicity 1
Type EcucIntegerParamDef
Range 0 ..
18446744073709551615
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name OsScheduleTableRepeating [ECUC_Os_00144]

Description true: first expiry point on the schedule table shall be processed at final
expiry point delay ticks after the final expiry point is processed.

false: the schedule table processing stops when the final expiry point is
processed.
Multiplicity 1
Type EcucBooleanParamDef
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsScheduleTableCounterRef [ECUC_Os_00145]

Description This parameter contains a reference to the counter which drives the
schedule table.
Multiplicity 1
Type Reference to OsCounter
false
Post-Build Variant
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: ECU

Name OsSchTblAccessingApplication [ECUC_Os_00054]

Description Reference to applications which have an access to this object.
Multiplicity 0..*
Type Reference to OsApplication
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Included Containers
Container Name Multiplicity Scope / Dependency
OsScheduleTable 0..1 This container specifies if and how the schedule table is
Autostart started on startup of the Operating System. The options
to start a schedule table correspond to the API calls to
start schedule tables during runtime.
OsScheduleTableExpiry 1..* The point on a Schedule Table at which the OS activates
Point tasks and/or sets events
OsScheduleTableSync 0..1 This container specifies the synchronization parameters
of the schedule table.

E.5.6 OsScheduleTableExpiryPoint

SWS Item [ECUC_Os_00143]

Container Name OsScheduleTableExpiryPoint
Description The point on a Schedule Table at which the OS activates tasks and/or
sets events
Configuration Parameters

Name OsScheduleTblExpPointOffset [ECUC_Os_00062]

Description The offset from zero (in ticks) at which the expiry point is to be
processed.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 ..
18446744073709551615
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency

Included Containers
Container Name Multiplicity Scope / Dependency
OsScheduleTableEvent 0..* Event that is triggered by that schedule table.
Setting
OsScheduleTableTask 0..* Task that is triggered by that schedule table.
Activation
OsScheduleTbl 0..1 Adjustable expiry point
AdjustableExpPoint

E.5.7 OsTask

SWS Item [ECUC_Os_00073]

Container Name OsTask

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Description This container represents an OSEK task.

Configuration Parameters

Name OsTaskActivation [ECUC_Os_00074]

Description This attribute defines the maximum number of queued activation
requests for the task. A value equal to "1" means that at any time only
a single activation is permitted for this task. Note that the value must
be a natural number starting at 1.
Multiplicity 1
Type EcucIntegerParamDef
Range 1 .. 4294967295
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name OsTaskPriority [ECUC_Os_00075]

Description The priority of a task is defined by the value of this attribute. This value
has to be understood as a relative value, i.e. the values show only the
relative ordering of the tasks.

OSEK OS defines the lowest priority as zero (0); larger values

correspond to higher priorities.
Multiplicity 1
Type EcucIntegerParamDef
Range 0 .. 4294967295
Default Value
Post-Build Variant false
Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name OsTaskSchedule [ECUC_Os_00076]

Description The OsTaskSchedule attribute defines the preemptability of the task.

If this attribute is set to NON, no internal resources may be assigned to

this task.
Multiplicity 1
Type EcucEnumerationParamDef
Range FULL Task is preemptable.
NON Task is not preemptable.

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Post-Build Variant false

Value
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name OsTaskAccessingApplication [ECUC_Os_00077]

Description Reference to applications which have an access to this object.
Multiplicity 0..*
Type Reference to OsApplication
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Name OsTaskEventRef [ECUC_Os_00078]

Description This reference defines the list of events the extended task may react
on.
Multiplicity 0..*
Type Reference to OsEvent
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

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Name OsTaskResourceRef [ECUC_Os_00079]

Description This reference defines a list of resources accessed by this task.
Multiplicity 0..*
Type Reference to OsResource
Post-Build Variant false
Multiplicity
Post-Build Variant false
Value
Multiplicity Pre-compile time X All Variants
Configuration Class
Link time
Post-build time
Value Configuration Pre-compile time X All Variants
Class
Link time
Post-build time
Scope / Dependency scope: local

Included Containers
Container Name Multiplicity Scope / Dependency
OsTaskAutostart 0..1 This container determines whether the task is activated
during the system start-up procedure or not for some
specific application modes.

If the task shall be activated during the system start-up,

this container is present and holds the references to the
application modes in which the task is auto-started.
OsTaskTimingProtection 0..1 This container contains all parameters regarding timing
protection of the task.

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F Examples
This chapter contains more detailed information for examples which were shown inside
the preceding chapters of the specification.

F.1 ModeDeclarationGroupMapping
The example for Mapping of ModeDeclarations in chapter 4.4.10 is based on the
following ARXML:
<?xml version="1.0" encoding="UTF-8"?>
<AUTOSAR xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="
http://autosar.org/schema/r4.0" xsi:schemaLocation="http://autosar.
org/schema/r4.0 AUTOSAR_4-2-1.xsd">
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>Demo</SHORT-NAME>
<DESC>
<L-2 L="EN">Example about Connection of Mode Managers and Mode
Users with different number of ModeDeclarations</L-2>
</DESC>
<CATEGORY>EXAMPLE</CATEGORY>
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>SwComponentTypes</SHORT-NAME>
<ELEMENTS>
<APPLICATION-SW-COMPONENT-TYPE>
<SHORT-NAME>ModeManager</SHORT-NAME>
<PORTS>
<P-PORT-PROTOTYPE>
<SHORT-NAME>EcuState</SHORT-NAME>
<PROVIDED-COM-SPECS>
<MODE-SWITCH-SENDER-COM-SPEC>
<ENHANCED-MODE-API>true</ENHANCED-MODE-API>
<MODE-GROUP-REF DEST="MODE-DECLARATION-GROUP-
PROTOTYPE">/Demo/PortInterfaces/
EcuStatesExtended/EcuStatesExtended</MODE-
GROUP-REF>
<QUEUE-LENGTH>1</QUEUE-LENGTH>
</MODE-SWITCH-SENDER-COM-SPEC>
</PROVIDED-COM-SPECS>
<PROVIDED-INTERFACE-TREF DEST="MODE-SWITCH-INTERFACE"
>/Demo/PortInterfaces/EcuStatesExtended</PROVIDED
-INTERFACE-TREF>
</P-PORT-PROTOTYPE>
</PORTS>
</APPLICATION-SW-COMPONENT-TYPE>
<APPLICATION-SW-COMPONENT-TYPE>
<SHORT-NAME>ModeUser</SHORT-NAME>
<PORTS>
<R-PORT-PROTOTYPE>
<SHORT-NAME>EcuState</SHORT-NAME>
<REQUIRED-COM-SPECS>

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<MODE-SWITCH-RECEIVER-COM-SPEC>
<ENHANCED-MODE-API>1</ENHANCED-MODE-API>
<SUPPORTS-ASYNCHRONOUS-MODE-SWITCH>false</
SUPPORTS-ASYNCHRONOUS-MODE-SWITCH>
</MODE-SWITCH-RECEIVER-COM-SPEC>
</REQUIRED-COM-SPECS>
<REQUIRED-INTERFACE-TREF DEST="MODE-SWITCH-INTERFACE"
>/Demo/PortInterfaces/EcuStatesBasic</REQUIRED-
INTERFACE-TREF>
</R-PORT-PROTOTYPE>
</PORTS>
</APPLICATION-SW-COMPONENT-TYPE>
<COMPOSITION-SW-COMPONENT-TYPE>
<SHORT-NAME>DemoEcu</SHORT-NAME>
<COMPONENTS>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>ModeManager</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/ModeManager</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>ModeUser</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/ModeUser</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
</COMPONENTS>
<CONNECTORS>
<ASSEMBLY-SW-CONNECTOR>
<SHORT-NAME>ModeManager_EcuState_ModeUser_EcuState</
SHORT-NAME>
<MAPPING-REF DEST="MODE-INTERFACE-MAPPING">/Demo/
PortInterfaceMappingSets/
ModeSwitchInterfaceMapping/
EcuStatesExtended_2_EcuStatesBasic</MAPPING-REF>
<PROVIDER-IREF>
<CONTEXT-COMPONENT-REF DEST="SW-COMPONENT-PROTOTYPE
">/Demo/SwComponentTypes/DemoEcu/ModeManager</
CONTEXT-COMPONENT-REF>
<TARGET-P-PORT-REF DEST="P-PORT-PROTOTYPE">/Demo/
SwComponentTypes/ModeManager/EcuState</TARGET-P
-PORT-REF>
</PROVIDER-IREF>
<REQUESTER-IREF>
<CONTEXT-COMPONENT-REF DEST="SW-COMPONENT-PROTOTYPE
">/Demo/SwComponentTypes/DemoEcu/ModeUser</
CONTEXT-COMPONENT-REF>
<TARGET-R-PORT-REF DEST="R-PORT-PROTOTYPE">/Demo/
SwComponentTypes/ModeUser/EcuState</TARGET-R-
PORT-REF>
</REQUESTER-IREF>
</ASSEMBLY-SW-CONNECTOR>
</CONNECTORS>
</COMPOSITION-SW-COMPONENT-TYPE>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>

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<SHORT-NAME>PortInterfaces</SHORT-NAME>
<ELEMENTS>
<MODE-SWITCH-INTERFACE>
<SHORT-NAME>EcuStatesBasic</SHORT-NAME>
<MODE-GROUP>
<SHORT-NAME>EcuStatesBasic</SHORT-NAME>
<SW-CALIBRATION-ACCESS>READ-ONLY</SW-CALIBRATION-ACCESS
>
<TYPE-TREF DEST="MODE-DECLARATION-GROUP">/Demo/
ModeDeclarationGroups/EcuStatesBasic</TYPE-TREF>
</MODE-GROUP>
</MODE-SWITCH-INTERFACE>
<MODE-SWITCH-INTERFACE>
<SHORT-NAME>EcuStatesExtended</SHORT-NAME>
<MODE-GROUP>
<SHORT-NAME>EcuStatesExtended</SHORT-NAME>
<SW-CALIBRATION-ACCESS>READ-ONLY</SW-CALIBRATION-ACCESS
>
<TYPE-TREF DEST="MODE-DECLARATION-GROUP">/Demo/
ModeDeclarationGroups/EcuStatesExtended</TYPE-TREF>
</MODE-GROUP>
</MODE-SWITCH-INTERFACE>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>
<SHORT-NAME>ModeDeclarationGroups</SHORT-NAME>
<ELEMENTS>
<MODE-DECLARATION-GROUP>
<SHORT-NAME>EcuStatesBasic</SHORT-NAME>
<CATEGORY>EXPLICIT_ORDER</CATEGORY>
<INITIAL-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/STARTUP</INITIAL
-MODE-REF>

<MODE-DECLARATIONS>
<MODE-DECLARATION>
<SHORT-NAME>STARTUP</SHORT-NAME>
<DESC>
<L-2 L="EN">Startup phase of the Ecu</L-2>
</DESC>
<VALUE>1</VALUE>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>RUN</SHORT-NAME>
<DESC>
<L-2 L="EN">Run phase of the Ecu</L-2>
</DESC>
<VALUE>2</VALUE>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>POST_RUN</SHORT-NAME>
<DESC>
<L-2 L="EN">post run phase of the Ecu</L-2>
</DESC>
<VALUE>3</VALUE>
</MODE-DECLARATION>

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<MODE-DECLARATION>
<SHORT-NAME>SHUTDOWN</SHORT-NAME>
<DESC>
<L-2 L="EN">shutdown phase of the Ecu</L-2>
</DESC>
<VALUE>4</VALUE>
</MODE-DECLARATION>
</MODE-DECLARATIONS>
<MODE-TRANSITIONS>
<MODE-TRANSITION>
<SHORT-NAME>STARTUP_RUN</SHORT-NAME>
<ENTERED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/RUN</ENTERED-
MODE-REF>
<EXITED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/STARTUP</
EXITED-MODE-REF>
</MODE-TRANSITION>
<MODE-TRANSITION>
<SHORT-NAME>STARTUP_POST_RUN</SHORT-NAME>
<ENTERED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/POST_RUN</
ENTERED-MODE-REF>
<EXITED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/STARTUP</
EXITED-MODE-REF>
</MODE-TRANSITION>
<MODE-TRANSITION>
<SHORT-NAME>RUN_POST_RUN</SHORT-NAME>
<ENTERED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/POST_RUN</
ENTERED-MODE-REF>
<EXITED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/RUN</EXITED-
MODE-REF>
</MODE-TRANSITION>
<MODE-TRANSITION>
<SHORT-NAME>POST_RUN_SHUTDOWN</SHORT-NAME>
<ENTERED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/SHUTDOWN</
ENTERED-MODE-REF>
<EXITED-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/POST_RUN</
EXITED-MODE-REF>
</MODE-TRANSITION>
</MODE-TRANSITIONS>
<ON-TRANSITION-VALUE>0</ON-TRANSITION-VALUE>
</MODE-DECLARATION-GROUP>
<MODE-DECLARATION-GROUP>
<SHORT-NAME>EcuStatesExtended</SHORT-NAME>
<CATEGORY>ALPHABETIC_ORDER</CATEGORY>
<INITIAL-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/StartUp</
INITIAL-MODE-REF>
<MODE-DECLARATIONS>
<MODE-DECLARATION>

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<SHORT-NAME>StartUp</SHORT-NAME>
<DESC>
<L-2 L="EN">Start up phase of the Ecu</L-2>
</DESC>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>Run</SHORT-NAME>
<DESC>
<L-2 L="EN">Run phase of the Ecu</L-2>
</DESC>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>PostRun1</SHORT-NAME>
<DESC>
<L-2 L="EN">First post run phase of the Ecu</L-2>
</DESC>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>PostRun2</SHORT-NAME>
<DESC>
<L-2 L="EN">Second post run phase of the Ecu</L-2>
</DESC>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>ShutDown</SHORT-NAME>
<DESC>
<L-2 L="EN">Shut down phase of the Ecu</L-2>
</DESC>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>Sleep</SHORT-NAME>
<DESC>
<L-2 L="EN">Sleep mode of the Ecu with reduced
functionality</L-2>
</DESC>
</MODE-DECLARATION>
<MODE-DECLARATION>
<SHORT-NAME>Hibernate</SHORT-NAME>
<DESC>
<L-2 L="EN">Hibernate mode of the Ecu with extreme
reduced functionality</L-2>
</DESC>
</MODE-DECLARATION>
</MODE-DECLARATIONS>
</MODE-DECLARATION-GROUP>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>
<SHORT-NAME>PortInterfaceMappingSets</SHORT-NAME>
<ELEMENTS>
<MODE-DECLARATION-MAPPING-SET>
<SHORT-NAME>EcuStateMapping</SHORT-NAME>
<MODE-DECLARATION-MAPPINGS>
<MODE-DECLARATION-MAPPING>
<SHORT-NAME>StartUp_2_STARTUP_</SHORT-NAME>
<FIRST-MODE-REFS>

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<FIRST-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/StartUp
</FIRST-MODE-REF>
</FIRST-MODE-REFS>
<SECOND-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/STARTUP</
SECOND-MODE-REF>
</MODE-DECLARATION-MAPPING>
<MODE-DECLARATION-MAPPING>
<SHORT-NAME>Run_2_RUN</SHORT-NAME>
<FIRST-MODE-REFS>
<FIRST-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/Run</
FIRST-MODE-REF>
</FIRST-MODE-REFS>
<SECOND-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/RUN</SECOND-
MODE-REF>
</MODE-DECLARATION-MAPPING>
<MODE-DECLARATION-MAPPING>
<SHORT-NAME>PostRunX_2_POST_RUN</SHORT-NAME>
<FIRST-MODE-REFS>
<FIRST-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/
PostRun1</FIRST-MODE-REF>
<FIRST-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/
PostRun2</FIRST-MODE-REF>
</FIRST-MODE-REFS>
<SECOND-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/POST_RUN</
SECOND-MODE-REF>
</MODE-DECLARATION-MAPPING>
<MODE-DECLARATION-MAPPING>
<SHORT-NAME>ShutDown_2_SHUTDOWN</SHORT-NAME>
<FIRST-MODE-REFS>
<FIRST-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/
ShutDown</FIRST-MODE-REF>
</FIRST-MODE-REFS>
<SECOND-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/SHUTDOWN</
SECOND-MODE-REF>
</MODE-DECLARATION-MAPPING>
<MODE-DECLARATION-MAPPING>
<SHORT-NAME>Sleep_Hibernate_2_SHUTDOWN</SHORT-NAME>
<FIRST-MODE-REFS>
<FIRST-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/Sleep</
FIRST-MODE-REF>
<FIRST-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesExtended/
Hibernate</FIRST-MODE-REF>
</FIRST-MODE-REFS>

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<SECOND-MODE-REF DEST="MODE-DECLARATION">/Demo/
ModeDeclarationGroups/EcuStatesBasic/SHUTDOWN</
SECOND-MODE-REF>
</MODE-DECLARATION-MAPPING>
</MODE-DECLARATION-MAPPINGS>
</MODE-DECLARATION-MAPPING-SET>
<PORT-INTERFACE-MAPPING-SET>
<SHORT-NAME>ModeSwitchInterfaceMapping</SHORT-NAME>
<PORT-INTERFACE-MAPPINGS>
<MODE-INTERFACE-MAPPING>
<SHORT-NAME>EcuStatesExtended_2_EcuStatesBasic</SHORT
-NAME>
<MODE-MAPPING>
<FIRST-MODE-GROUP-REF DEST="MODE-DECLARATION-GROUP-
PROTOTYPE">/Demo/PortInterfaces/
EcuStatesExtended/EcuStatesExtended</FIRST-MODE
-GROUP-REF>
<MODE-DECLARATION-MAPPING-SET-REF DEST="MODE-
DECLARATION-MAPPING-SET">/Demo/
PortInterfaceMappingSets/EcuStateMapping</MODE-
DECLARATION-MAPPING-SET-REF>
<SECOND-MODE-GROUP-REF DEST="MODE-DECLARATION-GROUP
-PROTOTYPE">/Demo/PortInterfaces/EcuStatesBasic
/EcuStatesBasic</SECOND-MODE-GROUP-REF>
</MODE-MAPPING>
</MODE-INTERFACE-MAPPING>
</PORT-INTERFACE-MAPPINGS>
</PORT-INTERFACE-MAPPING-SET>
</ELEMENTS>
</AR-PACKAGE>
</AR-PACKAGES>
</AR-PACKAGE>
</AR-PACKAGES>
</AUTOSAR>

F.2 Stability need for received data

The example for Stability need for received data in example 4.6 is based on the
following ARXML:
<?xml version="1.0" encoding="UTF-8"?>
<AUTOSAR xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="
http://autosar.org/schema/r4.0" xsi:schemaLocation="http://autosar.
org/schema/r4.0 AUTOSAR_4-2-1.xsd">
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>Demo</SHORT-NAME>
<CATEGORY>EXAMPLE</CATEGORY>
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>SwComponentTypes</SHORT-NAME>
<ELEMENTS>
<COMPOSITION-SW-COMPONENT-TYPE>

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<SHORT-NAME>COMP_1</SHORT-NAME>
<DESC><L-2 L="EN">Stability need for received data (see
SWS RTE)</L-2></DESC>
<CONSISTENCY-NEEDSS>
<CONSISTENCY-NEEDS>
<SHORT-NAME>CN_BC</SHORT-NAME>
<DPG-DOES-NOT-REQUIRE-COHERENCYS>
<DATA-PROTOTYPE-GROUP>
<SHORT-NAME>CN_BC_DG1</SHORT-NAME>
<IMPLICIT-DATA-ACCESS-IREFS>
<IMPLICIT-DATA-ACCESS-IREF>
<CONTEXT-SW-COMPONENT-PROTOTYPE-REF DEST="SW-
COMPONENT-PROTOTYPE">/Demo/SwComponentTypes/
COMP_1/ASWC_B</CONTEXT-SW-COMPONENT-PROTOTYPE-REF
>
<CONTEXT-PORT-PROTOTYPE-REF DEST="R-PORT-PROTOTYPE">/
Demo/SwComponentTypes/ASWC_B/A</CONTEXT-PORT-
PROTOTYPE-REF>
<TARGET-VARIABLE-DATA-PROTOTYPE-REF DEST="VARIABLE-
DATA-PROTOTYPE">/Demo/PortInterfaces/A/A</TARGET-
VARIABLE-DATA-PROTOTYPE-REF>
</IMPLICIT-DATA-ACCESS-IREF>

<IMPLICIT-DATA-ACCESS-IREF>
<CONTEXT-SW-COMPONENT-PROTOTYPE-REF DEST="SW-
COMPONENT-PROTOTYPE">/Demo/SwComponentTypes/
COMP_1/ASWC_C</CONTEXT-SW-COMPONENT-PROTOTYPE-REF
>
<CONTEXT-PORT-PROTOTYPE-REF DEST="R-PORT-PROTOTYPE">/
Demo/SwComponentTypes/ASWC_C/A</CONTEXT-PORT-
PROTOTYPE-REF>
<TARGET-VARIABLE-DATA-PROTOTYPE-REF DEST="VARIABLE-
DATA-PROTOTYPE">/Demo/PortInterfaces/A/A</TARGET-
VARIABLE-DATA-PROTOTYPE-REF>
</IMPLICIT-DATA-ACCESS-IREF>

<IMPLICIT-DATA-ACCESS-IREF>
<CONTEXT-SW-COMPONENT-PROTOTYPE-REF DEST="SW-
COMPONENT-PROTOTYPE">/Demo/SwComponentTypes/
COMP_1/ASWC_B</CONTEXT-SW-COMPONENT-PROTOTYPE-REF
>
<CONTEXT-PORT-PROTOTYPE-REF DEST="R-PORT-PROTOTYPE">/
Demo/SwComponentTypes/ASWC_B/B</CONTEXT-PORT-
PROTOTYPE-REF>
<TARGET-VARIABLE-DATA-PROTOTYPE-REF DEST="VARIABLE-
DATA-PROTOTYPE">/Demo/PortInterfaces/B/B</TARGET-
VARIABLE-DATA-PROTOTYPE-REF>
</IMPLICIT-DATA-ACCESS-IREF>

<IMPLICIT-DATA-ACCESS-IREF>
<CONTEXT-SW-COMPONENT-PROTOTYPE-REF DEST="SW-
COMPONENT-PROTOTYPE">/Demo/SwComponentTypes/
COMP_1/ASWC_C</CONTEXT-SW-COMPONENT-PROTOTYPE-REF
>

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<CONTEXT-PORT-PROTOTYPE-REF DEST="R-PORT-PROTOTYPE">/
Demo/SwComponentTypes/ASWC_C/B</CONTEXT-PORT-
PROTOTYPE-REF>
<TARGET-VARIABLE-DATA-PROTOTYPE-REF DEST="VARIABLE-
DATA-PROTOTYPE">/Demo/PortInterfaces/B/B</TARGET-
VARIABLE-DATA-PROTOTYPE-REF>
</IMPLICIT-DATA-ACCESS-IREF>

</IMPLICIT-DATA-ACCESS-IREFS>
</DATA-PROTOTYPE-GROUP>
</DPG-DOES-NOT-REQUIRE-COHERENCYS>
<REG-REQUIRES-STABILITYS>
<RUNNABLE-ENTITY-GROUP>
<SHORT-NAME>CN_BC_RG1</SHORT-NAME>
<RUNNABLE-ENTITY-IREFS>
<RUNNABLE-ENTITY-IREF>
<CONTEXT-SW-COMPONENT-PROTOTYPE-REF DEST="SW-
COMPONENT-PROTOTYPE">/Demo/SwComponentTypes/
COMP_1/ASWC_B</CONTEXT-SW-COMPONENT-PROTOTYPE-REF
>
<TARGET-RUNNABLE-ENTITY-REF DEST="RUNNABLE-ENTITY">/
Demo/SwComponentTypes/ASWC_B/IB_ASWC_B/
ASWC_B_RUN1</TARGET-RUNNABLE-ENTITY-REF>
</RUNNABLE-ENTITY-IREF>
<RUNNABLE-ENTITY-IREF>
<CONTEXT-SW-COMPONENT-PROTOTYPE-REF DEST="SW-
COMPONENT-PROTOTYPE">/Demo/SwComponentTypes/
COMP_1/ASWC_C</CONTEXT-SW-COMPONENT-PROTOTYPE-REF
>
<TARGET-RUNNABLE-ENTITY-REF DEST="RUNNABLE-ENTITY">/
Demo/SwComponentTypes/ASWC_C/IB_ASWC_C/
ASWC_C_RUN1</TARGET-RUNNABLE-ENTITY-REF>
</RUNNABLE-ENTITY-IREF>
</RUNNABLE-ENTITY-IREFS>
</RUNNABLE-ENTITY-GROUP>
</REG-REQUIRES-STABILITYS>
</CONSISTENCY-NEEDS>
</CONSISTENCY-NEEDSS>
<COMPONENTS>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>ASWC_A</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/ASWC_A</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>ASWC_B</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/ASWC_B</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>ASWC_C</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/ASWC_C</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
</COMPONENTS>
</COMPOSITION-SW-COMPONENT-TYPE>

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<APPLICATION-SW-COMPONENT-TYPE>
<SHORT-NAME>ASWC_A</SHORT-NAME>
<PORTS>
<P-PORT-PROTOTYPE>
<SHORT-NAME>A</SHORT-NAME>
<PROVIDED-INTERFACE-TREF DEST="SENDER-RECEIVER-
INTERFACE">/Demo/PortInterfaces/A</PROVIDED-
INTERFACE-TREF>
</P-PORT-PROTOTYPE>
<P-PORT-PROTOTYPE>
<SHORT-NAME>B</SHORT-NAME>
<PROVIDED-INTERFACE-TREF DEST="SENDER-RECEIVER-
INTERFACE">/Demo/PortInterfaces/B</PROVIDED-
INTERFACE-TREF>
</P-PORT-PROTOTYPE>
</PORTS>
<INTERNAL-BEHAVIORS>
<SWC-INTERNAL-BEHAVIOR>
<SHORT-NAME>IB_ASWC_A</SHORT-NAME>
<RUNNABLES>
<RUNNABLE-ENTITY>
<SHORT-NAME>ASWC_A_RUN1</SHORT-NAME>
<DATA-WRITE-ACCESSS>
<VARIABLE-ACCESS>
<SHORT-NAME>DWP_ASWC_A_RUN1_A_A</SHORT-NAME>
<ACCESSED-VARIABLE>
<AUTOSAR-VARIABLE-IREF>
<PORT-PROTOTYPE-REF DEST="P-PORT-
PROTOTYPE">/Demo/SwComponentTypes/
ASWC_A/A</PORT-PROTOTYPE-REF>
<TARGET-DATA-PROTOTYPE-REF DEST="VARIABLE
-DATA-PROTOTYPE">/Demo/PortInterfaces
/A/A</TARGET-DATA-PROTOTYPE-REF>
</AUTOSAR-VARIABLE-IREF>
</ACCESSED-VARIABLE>
</VARIABLE-ACCESS>
<VARIABLE-ACCESS>
<SHORT-NAME>DWP_ASWC_A_RUN1_B_B</SHORT-NAME>
<ACCESSED-VARIABLE>
<AUTOSAR-VARIABLE-IREF>
<PORT-PROTOTYPE-REF DEST="P-PORT-
PROTOTYPE">/Demo/SwComponentTypes/
ASWC_A/B</PORT-PROTOTYPE-REF>
<TARGET-DATA-PROTOTYPE-REF DEST="VARIABLE
-DATA-PROTOTYPE">/Demo/PortInterfaces
/B/B</TARGET-DATA-PROTOTYPE-REF>
</AUTOSAR-VARIABLE-IREF>
</ACCESSED-VARIABLE>
</VARIABLE-ACCESS>
</DATA-WRITE-ACCESSS>
</RUNNABLE-ENTITY>
</RUNNABLES>
</SWC-INTERNAL-BEHAVIOR>
</INTERNAL-BEHAVIORS>
</APPLICATION-SW-COMPONENT-TYPE>
<APPLICATION-SW-COMPONENT-TYPE>

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<SHORT-NAME>ASWC_B</SHORT-NAME>
<PORTS>
<R-PORT-PROTOTYPE>
<SHORT-NAME>A</SHORT-NAME>
<REQUIRED-INTERFACE-TREF DEST="SENDER-RECEIVER-
INTERFACE">/Demo/PortInterfaces/A</REQUIRED-
INTERFACE-TREF>
</R-PORT-PROTOTYPE>
<R-PORT-PROTOTYPE>
<SHORT-NAME>B</SHORT-NAME>
<REQUIRED-INTERFACE-TREF DEST="SENDER-RECEIVER-
INTERFACE">/Demo/PortInterfaces/B</REQUIRED-
INTERFACE-TREF>
</R-PORT-PROTOTYPE>
</PORTS>
<INTERNAL-BEHAVIORS>
<SWC-INTERNAL-BEHAVIOR>
<SHORT-NAME>IB_ASWC_B</SHORT-NAME>
<RUNNABLES>
<RUNNABLE-ENTITY>
<SHORT-NAME>ASWC_B_RUN1</SHORT-NAME>
<DATA-READ-ACCESSS>
<VARIABLE-ACCESS>
<SHORT-NAME>DWP_ASWC_B_RUN1_A_A</SHORT-NAME>
<ACCESSED-VARIABLE>
<AUTOSAR-VARIABLE-IREF>
<PORT-PROTOTYPE-REF DEST="R-PORT-
PROTOTYPE">/Demo/SwComponentTypes/
ASWC_B/A</PORT-PROTOTYPE-REF>
<TARGET-DATA-PROTOTYPE-REF DEST="VARIABLE
-DATA-PROTOTYPE">/Demo/PortInterfaces
/A/A</TARGET-DATA-PROTOTYPE-REF>
</AUTOSAR-VARIABLE-IREF>
</ACCESSED-VARIABLE>
</VARIABLE-ACCESS>
<VARIABLE-ACCESS>
<SHORT-NAME>DWP_ASWC_B_RUN1_B_B</SHORT-NAME>
<ACCESSED-VARIABLE>
<AUTOSAR-VARIABLE-IREF>
<PORT-PROTOTYPE-REF DEST="R-PORT-
PROTOTYPE">/Demo/SwComponentTypes/
ASWC_B/B</PORT-PROTOTYPE-REF>
<TARGET-DATA-PROTOTYPE-REF DEST="VARIABLE
-DATA-PROTOTYPE">/Demo/PortInterfaces
/B/B</TARGET-DATA-PROTOTYPE-REF>
</AUTOSAR-VARIABLE-IREF>
</ACCESSED-VARIABLE>
</VARIABLE-ACCESS>
</DATA-READ-ACCESSS>
</RUNNABLE-ENTITY>
</RUNNABLES>
</SWC-INTERNAL-BEHAVIOR>
</INTERNAL-BEHAVIORS>
</APPLICATION-SW-COMPONENT-TYPE>
<APPLICATION-SW-COMPONENT-TYPE>
<SHORT-NAME>ASWC_C</SHORT-NAME>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

<PORTS>
<R-PORT-PROTOTYPE>
<SHORT-NAME>A</SHORT-NAME>
<REQUIRED-INTERFACE-TREF DEST="SENDER-RECEIVER-
INTERFACE">/Demo/PortInterfaces/A</REQUIRED-
INTERFACE-TREF>
</R-PORT-PROTOTYPE>
<R-PORT-PROTOTYPE>
<SHORT-NAME>B</SHORT-NAME>
<REQUIRED-INTERFACE-TREF DEST="SENDER-RECEIVER-
INTERFACE">/Demo/PortInterfaces/B</REQUIRED-
INTERFACE-TREF>
</R-PORT-PROTOTYPE>
</PORTS>
<INTERNAL-BEHAVIORS>
<SWC-INTERNAL-BEHAVIOR>
<SHORT-NAME>IB_ASWC_C</SHORT-NAME>
<RUNNABLES>
<RUNNABLE-ENTITY>
<SHORT-NAME>ASWC_C_RUN1</SHORT-NAME>
<DATA-READ-ACCESSS>
<VARIABLE-ACCESS>
<SHORT-NAME>DWP_ASWC_C_RUN1_A_A</SHORT-NAME>
<ACCESSED-VARIABLE>
<AUTOSAR-VARIABLE-IREF>
<PORT-PROTOTYPE-REF DEST="R-PORT-
PROTOTYPE">/Demo/SwComponentTypes/
ASWC_C/A</PORT-PROTOTYPE-REF>
<TARGET-DATA-PROTOTYPE-REF DEST="VARIABLE
-DATA-PROTOTYPE">/Demo/PortInterfaces
/A/A</TARGET-DATA-PROTOTYPE-REF>
</AUTOSAR-VARIABLE-IREF>
</ACCESSED-VARIABLE>
</VARIABLE-ACCESS>
<VARIABLE-ACCESS>
<SHORT-NAME>DWP_ASWC_C_RUN1_B_B</SHORT-NAME>
<ACCESSED-VARIABLE>
<AUTOSAR-VARIABLE-IREF>
<PORT-PROTOTYPE-REF DEST="R-PORT-
PROTOTYPE">/Demo/SwComponentTypes/
ASWC_C/B</PORT-PROTOTYPE-REF>
<TARGET-DATA-PROTOTYPE-REF DEST="VARIABLE
-DATA-PROTOTYPE">/Demo/PortInterfaces
/B/B</TARGET-DATA-PROTOTYPE-REF>
</AUTOSAR-VARIABLE-IREF>
</ACCESSED-VARIABLE>
</VARIABLE-ACCESS>
</DATA-READ-ACCESSS>
</RUNNABLE-ENTITY>
</RUNNABLES>
</SWC-INTERNAL-BEHAVIOR>
</INTERNAL-BEHAVIORS>
</APPLICATION-SW-COMPONENT-TYPE>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

<SHORT-NAME>PortInterfaces</SHORT-NAME>
<ELEMENTS>
<SENDER-RECEIVER-INTERFACE>
<SHORT-NAME>A</SHORT-NAME>
<DATA-ELEMENTS>
<VARIABLE-DATA-PROTOTYPE>
<SHORT-NAME>A</SHORT-NAME>
</VARIABLE-DATA-PROTOTYPE>
</DATA-ELEMENTS>
</SENDER-RECEIVER-INTERFACE>
<SENDER-RECEIVER-INTERFACE>
<SHORT-NAME>B</SHORT-NAME>
<DATA-ELEMENTS>
<VARIABLE-DATA-PROTOTYPE>
<SHORT-NAME>B</SHORT-NAME>
</VARIABLE-DATA-PROTOTYPE>
</DATA-ELEMENTS>
</SENDER-RECEIVER-INTERFACE>
</ELEMENTS>
</AR-PACKAGE>
</AR-PACKAGES>
</AR-PACKAGE>
</AR-PACKAGES>
</AUTOSAR>

F.3 CompuMethod with bitfield texttable conversion

The following CompuMethod of category BITFIELD_TEXTTABLE
Listing F.1: example for bit field text table CompuMethod
1 <COMPU-METHOD>
2 <SHORT-NAME>Texttable</SHORT-NAME>
3 <CATEGORY>BITFIELD_TEXTTABLE</CATEGORY>
4 <COMPU-INTERNAL-TO-PHYS>
5 <COMPU-SCALES>
6 <!-- problem -->
7 <COMPU-SCALE>
8 <SHORT-LABEL>problem</SHORT-LABEL>
9 <SYMBOL>problem_flat_tire</SYMBOL>
10 <MASK>0b11110000</MASK>
11 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</LOWER-LIMIT>
12 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</UPPER-LIMIT>
13 <COMPU-CONST>
14 <VT>flat tire</VT>
15 </COMPU-CONST>
16 </COMPU-SCALE>
17 <COMPU-SCALE>
18 <SHORT-LABEL>problem</SHORT-LABEL>
19 <SYMBOL>problem_low_pressure</SYMBOL>
20 <MASK>0b11110000</MASK>
21 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00010000</LOWER-LIMIT>
22 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00010000</UPPER-LIMIT>
23 <COMPU-CONST>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

24 <VT>low pressure</VT>
25 </COMPU-CONST>
26 </COMPU-SCALE>
27 <COMPU-SCALE>
28 <SHORT-LABEL>problem</SHORT-LABEL>
29 <SYMBOL>problem_unbalanced</SYMBOL>
30 <MASK>0b11110000</MASK>
31 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00100000</LOWER-LIMIT>
32 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00100000</UPPER-LIMIT>
33 <COMPU-CONST>
34 <VT>unbalanced</VT>
35 </COMPU-CONST>
36 </COMPU-SCALE>
37 <COMPU-SCALE>
38 <SHORT-LABEL>problem</SHORT-LABEL>
39 <SYMBOL>problem_unknown</SYMBOL>
40 <MASK>0b11110000</MASK>
41 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00110000</LOWER-LIMIT>
42 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00110000</UPPER-LIMIT>
43 <COMPU-CONST>
44 <VT>unknown</VT>
45 </COMPU-CONST>
46 </COMPU-SCALE>
47 <COMPU-SCALE>
48 <SHORT-LABEL>problem</SHORT-LABEL>
49 <SYMBOL>problem_invalid</SYMBOL>
50 <MASK>0b11110000</MASK>
51 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b11110000</LOWER-LIMIT>
52 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b11110000</UPPER-LIMIT>
53 <COMPU-CONST>
54 <VT>invalid</VT>
55 </COMPU-CONST>
56 </COMPU-SCALE>
57 <!-- rear right -->
58 <COMPU-SCALE>
59 <SHORT-LABEL>rearRight</SHORT-LABEL>
60 <SYMBOL>rearRight_no</SYMBOL>
61 <MASK>0b11001000</MASK>
62 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</LOWER-LIMIT>
63 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</UPPER-LIMIT>
64 <COMPU-CONST>
65 <VT>no</VT>
66 </COMPU-CONST>
67 </COMPU-SCALE>
68 <COMPU-SCALE>
69 <SHORT-LABEL>rearRight</SHORT-LABEL>
70 <SYMBOL>rearRight_yes</SYMBOL>
71 <MASK>0b11001000</MASK>
72 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00001000</LOWER-LIMIT>
73 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00001000</UPPER-LIMIT>
74 <COMPU-CONST>
75 <VT>yes</VT>
76 </COMPU-CONST>
77 </COMPU-SCALE>
78 <!-- rear left -->
79 <COMPU-SCALE>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

80 <SHORT-LABEL>rearLeft</SHORT-LABEL>
81 <SYMBOL>rearLeft_no</SYMBOL>
82 <MASK>0b11000100</MASK>
83 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</LOWER-LIMIT>
84 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</UPPER-LIMIT>
85 <COMPU-CONST>
86 <VT>no</VT>
87 </COMPU-CONST>
88 </COMPU-SCALE>
89 <COMPU-SCALE>
90 <SHORT-LABEL>rearLeft</SHORT-LABEL>
91 <SYMBOL>rearLeft_yes</SYMBOL>
92 <MASK>0b11000100</MASK>
93 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000100</LOWER-LIMIT>
94 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000100</UPPER-LIMIT>
95 <COMPU-CONST>
96 <VT>yes</VT>
97 </COMPU-CONST>
98 </COMPU-SCALE>
99 <!-- front right -->
100 <COMPU-SCALE>
101 <SHORT-LABEL>frontRight</SHORT-LABEL>
102 <SYMBOL>frontRight_no</SYMBOL>
103 <MASK>0b11000010</MASK>
104 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</LOWER-LIMIT>
105 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</UPPER-LIMIT>
106 <COMPU-CONST>
107 <VT>no</VT>
108 </COMPU-CONST>
109 </COMPU-SCALE>
110 <COMPU-SCALE>
111 <SHORT-LABEL>frontRight</SHORT-LABEL>
112 <SYMBOL>frontRight_yes</SYMBOL>
113 <MASK>0b11000010</MASK>
114 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000010</LOWER-LIMIT>
115 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000010</UPPER-LIMIT>
116 <COMPU-CONST>
117 <VT>yes</VT>
118 </COMPU-CONST>
119 </COMPU-SCALE>
120 <!-- front left -->
121 <COMPU-SCALE>
122 <SHORT-LABEL>frontLeft</SHORT-LABEL>
123 <SYMBOL>frontLeft_no</SYMBOL>
124 <MASK>0b11000001</MASK>
125 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</LOWER-LIMIT>
126 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000000</UPPER-LIMIT>
127 <COMPU-CONST>
128 <VT>no</VT>
129 </COMPU-CONST>
130 </COMPU-SCALE>
131 <COMPU-SCALE>
132 <SHORT-LABEL>frontLeft</SHORT-LABEL>
133 <SYMBOL>frontLeft_yes</SYMBOL>
134 <MASK>0b11000001</MASK>
135 <LOWER-LIMIT INTERVAL-TYPE="CLOSED">0b00000001</LOWER-LIMIT>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

136 <UPPER-LIMIT INTERVAL-TYPE="CLOSED">0b00000001</UPPER-LIMIT>

137 <COMPU-CONST>
138 <VT>yes</VT>
139 </COMPU-CONST>
140 </COMPU-SCALE>
141 </COMPU-SCALES>
142 </COMPU-INTERNAL-TO-PHYS>
143 </COMPU-METHOD>

results in this definitions:

Listing F.2: literals for bit field text table CompuMethod
1 /* [SWS_Rte_07410] unique "shortLabel" / "mask" pair "problem" / 0
b11110000 */
2 #ifndef problem_BflMask
3 #define problem_BflMask 240U
4 #endif /* problem_BflMask */
5
6 /* [SWS_Rte_07411] unique "shortLabel" / "mask" pair "problem" / 0
b11110000 with a single contiguous bit field*/
7 #ifndef problem_BflPn
8 #define problem_BflPn 4U
9 #endif /* problem_BflPn */
10
11 /* [SWS_Rte_07412] unique "shortLabel" / "mask" pair "problem" / 0
b11110000 with a single contiguous bit field*/
12 #ifndef problem_BflLn
13 #define problem_BflLn 4U
14 #endif /* problem_BflLn */
15
16 /* [SWS_Rte_03810] CompuScale with point range "0b00000000", symbol
attribute "problem_flat_tire"*/
17 #ifndef problem_flat_tire
18 #define problem_flat_tire 0U
19 #endif /* problem_flat_tire */
20
21 /* [SWS_Rte_03810] CompuScale with point range "0b00010000", symbol
attribute "problem_low_pressure"*/
22 #ifndef problem_low_pressure
23 #define problem_low_pressure 16U
24 #endif /* problem_low_pressure */
25
26 /* [SWS_Rte_03810] CompuScale with point range "0b00100000", symbol
attribute "problem_unbalanced"*/
27 #ifndef problem_unbalanced
28 #define problem_unbalanced 32U
29 #endif /* problem_unbalanced */
30
31 /* [SWS_Rte_03810] CompuScale with point range "0b00110000", symbol
attribute "problem_unknown"*/
32 #ifndef problem_unknown
33 #define problem_unknown 48U
34 #endif /* problem_unknown */
35

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 Specification of RTE
AUTOSAR CP Release 4.3.0

36 /* [SWS_Rte_03810] CompuScale with point range "0b11110000", symbol

attribute "problem_invalid"*/
37 #ifndef problem_invalid
38 #define problem_invalid 240U
39 #endif /* problem_invalid */
40

41 /* [SWS_Rte_07410] unique "shortLabel" / "mask" pair "rearRight" / 0

b11001000 */
42 #ifndef rearRight_BflMask
43 #define rearRight_BflMask 200U
44 #endif /* rearRight_BflMask */
45

46 /* [SWS_Rte_07411] unique "shortLabel" / "mask" pair "rearRight" / 0

b11001000 but not a single contiguous bit field*/
47
48 /* [SWS_Rte_07412] unique "shortLabel" / "mask" pair "rearRight" / 0
b11001000 bot not a single contiguous bit field*/
49
50 /* [SWS_Rte_03810] CompuScale with point range "0b00000000", symbol
attribute "rearRight_no"*/
51 #ifndef rearRight_no
52 #define rearRight_no 0U
53 #endif /* rearRight_no */
54
55 /* [SWS_Rte_03810] CompuScale with point range "0b00001000", symbol
attribute "rearRight_yes"*/
56 #ifndef rearRight_yes
57 #define rearRight_yes 8U
58 #endif /* rearRight_yes */
59
60 /* [SWS_Rte_07410] unique "shortLabel" / "mask" pair "rearLeft" / 0
b11000100 */
61 #ifndef rearLeft_BflMask
62 #define rearLeft_BflMask 200U
63 #endif /* rearLeft_BflMask */
64
65 /* [SWS_Rte_07411] unique "shortLabel" / "mask" pair "rearLeft" / 0
b11000100 but not a single contiguous bit field*/
66
67 /* [SWS_Rte_07412] unique "shortLabel" / "mask" pair "rearLeft" / 0
b11000100 bot not a single contiguous bit field*/
68
69 /* [SWS_Rte_03810] CompuScale with point range "0b00000000", symbol
attribute "rearLeft_no"*/
70 #ifndef rearLeft_no
71 #define rearLeft_no 0U
72 #endif /* rearLeft_no */
73
74 /* [SWS_Rte_03810] CompuScale with point range "0b00000100", symbol
attribute "rearLeft_yes"*/
75 #ifndef rearLeft_yes
76 #define rearLeft_yes 4U
77 #endif /* rearLeft_yes */
78
79 /* [SWS_Rte_07410] unique "shortLabel" / "mask" pair "frontRight" / 0
b11000010 */

1083 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

80 #ifndef frontRight_BflMask
81 #define frontRight_BflMask 194U
82 #endif /* frontRight_BflMask */
83
84 /* [SWS_Rte_07411] unique "shortLabel" / "mask" pair "frontRight" / 0
b11000010 but not a single contiguous bit field*/
85
86 /* [SWS_Rte_07412] unique "shortLabel" / "mask" pair "frontRight" / 0
b11000010 bot not a single contiguous bit field*/
87
88 /* [SWS_Rte_03810] CompuScale with point range "0b00000000", symbol
attribute "frontRight_no"*/
89 #ifndef frontRight_no
90 #define frontRight_no 0U
91 #endif /* frontRight_no */
92
93 /* [SWS_Rte_03810] CompuScale with point range "0b00000010", symbol
attribute "frontRight_yes"*/
94 #ifndef frontRight_yes
95 #define frontRight_yes 2U
96 #endif /* frontRight_yes */
97
98 /* [SWS_Rte_07410] unique "shortLabel" / "mask" pair "frontLeft" / 0
b11000001 */
99 #ifndef frontLeft_BflMask
100 #define frontLeft_BflMask 193U
101 #endif /* frontLeft_BflMask */
102
103 /* [SWS_Rte_07411] unique "shortLabel" / "mask" pair "frontLeft" / 0
b11000001 but not a single contiguous bit field*/
104
105 /* [SWS_Rte_07412] unique "shortLabel" / "mask" pair "frontLeft" / 0
b11000001 bot not a single contiguous bit field*/
106
107 /* [SWS_Rte_03810] CompuScale with point range "0b00000000", symbol
attribute "frontLeft_no"*/
108 #ifndef frontLeft_no
109 #define frontLeft_no 0U
110 #endif /* frontLeft_no */
111
112 /* [SWS_Rte_03810] CompuScale with point range "0b00000001", symbol
attribute "frontLeft_yes"*/
113 #ifndef frontLeft_yes
114 #define frontLeft_yes 1U
115 #endif /* frontLeft_yes */

F.4 Structure type with self-reference

The example Structure type with self-reference in the following ARXML shows a
structure type which contains as a element a pointer witch can point to objects be-
ing of the type of the structure. Those types are usually needed for linked lists.
<?xml version="1.0" encoding="UTF-8"?>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

<AUTOSAR xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="

http://autosar.org/schema/r4.0" xsi:schemaLocation="http://autosar.
org/schema/r4.0 AUTOSAR_4-2-1.xsd">
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>Demo</SHORT-NAME>
<DESC>
<L-2 L="EN">Example about structure with a reference to its own
type</L-2>
</DESC>
<CATEGORY>EXAMPLE</CATEGORY>
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>ImplementationDataTypes</SHORT-NAME>
<ELEMENTS>
<IMPLEMENTATION-DATA-TYPE>
<SHORT-NAME>DataSet</SHORT-NAME>
<CATEGORY>STRUCTURE</CATEGORY>
<SUB-ELEMENTS>
<IMPLEMENTATION-DATA-TYPE-ELEMENT>
<SHORT-NAME>data1</SHORT-NAME>
<CATEGORY>TYPE_REFERENCE</CATEGORY>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<IMPLEMENTATION-DATA-TYPE-REF DEST="
IMPLEMENTATION-DATA-TYPE">/AUTOSAR_Platform
/ImplementationDataTypes/uint32</
IMPLEMENTATION-DATA-TYPE-REF>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
</IMPLEMENTATION-DATA-TYPE-ELEMENT>
<IMPLEMENTATION-DATA-TYPE-ELEMENT>
<SHORT-NAME>data2</SHORT-NAME>
<CATEGORY>TYPE_REFERENCE</CATEGORY>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<IMPLEMENTATION-DATA-TYPE-REF DEST="
IMPLEMENTATION-DATA-TYPE">/AUTOSAR_Platform
/ImplementationDataTypes/uint8</
IMPLEMENTATION-DATA-TYPE-REF>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
</IMPLEMENTATION-DATA-TYPE-ELEMENT>
<IMPLEMENTATION-DATA-TYPE-ELEMENT>
<SHORT-NAME>dataSetPtr</SHORT-NAME>
<CATEGORY>DATA_REFERENCE</CATEGORY>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<SW-POINTER-TARGET-PROPS>
<TARGET-CATEGORY>TYPE_REFERENCE</TARGET-
CATEGORY>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<IMPLEMENTATION-DATA-TYPE-REF DEST="
IMPLEMENTATION-DATA-TYPE">/Demo/
ImplementationDataTypes/DataSet</
IMPLEMENTATION-DATA-TYPE-REF>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
</SW-POINTER-TARGET-PROPS>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
</IMPLEMENTATION-DATA-TYPE-ELEMENT>
<IMPLEMENTATION-DATA-TYPE-ELEMENT>
<SHORT-NAME>substruct</SHORT-NAME>
<CATEGORY>STRUCTURE</CATEGORY>
<SUB-ELEMENTS>
<IMPLEMENTATION-DATA-TYPE-ELEMENT>
<SHORT-NAME>sub1</SHORT-NAME>
<CATEGORY>TYPE_REFERENCE</CATEGORY>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<IMPLEMENTATION-DATA-TYPE-REF DEST="
IMPLEMENTATION-DATA-TYPE">/
AUTOSAR_Platform/
ImplementationDataTypes/uint8</
IMPLEMENTATION-DATA-TYPE-REF>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
</IMPLEMENTATION-DATA-TYPE-ELEMENT>
<IMPLEMENTATION-DATA-TYPE-ELEMENT>
<SHORT-NAME>sub2</SHORT-NAME>
<CATEGORY>TYPE_REFERENCE</CATEGORY>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<IMPLEMENTATION-DATA-TYPE-REF DEST="
IMPLEMENTATION-DATA-TYPE">/
AUTOSAR_Platform/
ImplementationDataTypes/uint8</
IMPLEMENTATION-DATA-TYPE-REF>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
</IMPLEMENTATION-DATA-TYPE-ELEMENT>
</SUB-ELEMENTS>
</IMPLEMENTATION-DATA-TYPE-ELEMENT>
</SUB-ELEMENTS>
<TYPE-EMITTER>RTE</TYPE-EMITTER>
</IMPLEMENTATION-DATA-TYPE>
</ELEMENTS>
</AR-PACKAGE>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

</AR-PACKAGES>
</AR-PACKAGE>
</AR-PACKAGES>
</AUTOSAR>

This results according [SWS_Rte_07114] and [SWS_Rte_06812] in following code in

the Rte_Type.h file.
Listing F.3: Structure type with self-reference
1 /* typedef is created as forward declaration according SWS_Rte_06812*/
2 typedef struct _DataSet_ DataSet;
3

4 /* declaration of the structure according SWS_Rte_07114*/

5 struct _DataSet_
6 {
7 uint32 data1;
8 uint8 data2;
9 DataSet * dataSetPtr;
10 struct
11 {
12 uint8 sub1;
13 uint8 sub2;
14 } substruct;
15 };

F.5 Multiple calibration parameters instances

The example Multiple calibration parameters instances in the following ARXML
shows the example of multiple calibration data instances as explained in sec-
tion 4.2.8.3.7.
<?xml version="1.0" encoding="UTF-8"?>
<AUTOSAR xmlns="http://autosar.org/schema/r4.0" xmlns:xsi="http://www.
w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://autosar.
org/schema/r4.0 AUTOSAR_4-2-1.xsd">
<ADMIN-DATA>
<LANGUAGE>EN</LANGUAGE>
<DOC-REVISIONS>
<DOC-REVISION>
<REVISION-LABEL>0.1.0</REVISION-LABEL>
<DATE>2014-07-31</DATE>
</DOC-REVISION>
</DOC-REVISIONS>
</ADMIN-DATA>
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>Demo</SHORT-NAME>
<AR-PACKAGES>
<AR-PACKAGE>
<SHORT-NAME>PortInterfaces</SHORT-NAME>
<ELEMENTS>
<PARAMETER-INTERFACE>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

<SHORT-NAME>EP</SHORT-NAME>
<PARAMETERS>
<PARAMETER-DATA-PROTOTYPE>
<SHORT-NAME>Prm1</SHORT-NAME>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<SW-ADDR-METHOD-REF DEST="SW-ADDR-METHOD">/
AUTOSAR_MemMap/SwAddrMethods/CALIB_QM</SW-
ADDR-METHOD-REF>
<SW-CALIBRATION-ACCESS>READ-WRITE</SW-
CALIBRATION-ACCESS>
<SW-IMPL-POLICY>STANDARD</SW-IMPL-POLICY>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
<TYPE-TREF DEST="APPLICATION-PRIMITIVE-DATA-TYPE">/
AUTOSAR_AISpecification/ApplicationDataTypes/Flg1
</TYPE-TREF>
</PARAMETER-DATA-PROTOTYPE>
</PARAMETERS>
</PARAMETER-INTERFACE>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>
<SHORT-NAME>SwComponentTypes</SHORT-NAME>
<ELEMENTS>
<PARAMETER-SW-COMPONENT-TYPE>
<SHORT-NAME>PSWC</SHORT-NAME>
<PORTS>
<P-PORT-PROTOTYPE>
<SHORT-NAME>EP</SHORT-NAME>
<PROVIDED-COM-SPECS>
<PARAMETER-PROVIDE-COM-SPEC>
<INIT-VALUE>
<APPLICATION-VALUE-SPECIFICATION>
<SW-VALUE-CONT>
<UNIT-REF DEST="UNIT">/AUTOSAR/
AISpecification/Units/NoUnit</UNIT-REF>
<SW-VALUES-PHYS>
<VT>Rst</VT>
</SW-VALUES-PHYS>
</SW-VALUE-CONT>
</APPLICATION-VALUE-SPECIFICATION>
</INIT-VALUE>
<PARAMETER-REF DEST="PARAMETER-DATA-PROTOTYPE">/
Demo/PortInterfaces/EP/Prm1</PARAMETER-REF>
</PARAMETER-PROVIDE-COM-SPEC>
</PROVIDED-COM-SPECS>
<PROVIDED-INTERFACE-TREF DEST="PARAMETER-INTERFACE">/
Demo/PortInterfaces/EP</PROVIDED-INTERFACE-TREF>
</P-PORT-PROTOTYPE>
</PORTS>
</PARAMETER-SW-COMPONENT-TYPE>
<APPLICATION-SW-COMPONENT-TYPE>
<SHORT-NAME>ASWC</SHORT-NAME>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

<PORTS>
<R-PORT-PROTOTYPE>
<SHORT-NAME>EP</SHORT-NAME>
<REQUIRED-INTERFACE-TREF DEST="PARAMETER-INTERFACE">/
Demo/PortInterfaces/EP</REQUIRED-INTERFACE-TREF>
</R-PORT-PROTOTYPE>
</PORTS>
<INTERNAL-BEHAVIORS>
<SWC-INTERNAL-BEHAVIOR>
<SHORT-NAME>ASWC</SHORT-NAME>
<PER-INSTANCE-PARAMETERS>
<PARAMETER-DATA-PROTOTYPE>
<SHORT-NAME>PIP</SHORT-NAME>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<SW-ADDR-METHOD-REF DEST="SW-ADDR-METHOD">/
AUTOSAR_MemMap/SwAddrMethods/CALIB_QM</
SW-ADDR-METHOD-REF>
<SW-CALIBRATION-ACCESS>READ-WRITE</SW-
CALIBRATION-ACCESS>
<SW-IMPL-POLICY>STANDARD</SW-IMPL-POLICY>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>
<TYPE-TREF DEST="APPLICATION-PRIMITIVE-DATA-TYPE"
>/AUTOSAR_AISpecification/
ApplicationDataTypes/Flg1</TYPE-TREF>
<INIT-VALUE>
<APPLICATION-VALUE-SPECIFICATION>
<SW-VALUE-CONT>
<UNIT-REF DEST="UNIT">/AUTOSAR/
AISpecification/Units/NoUnit</UNIT-REF>
<SW-VALUES-PHYS>
<VT>Rst</VT>
</SW-VALUES-PHYS>
</SW-VALUE-CONT>
</APPLICATION-VALUE-SPECIFICATION>
</INIT-VALUE>
</PARAMETER-DATA-PROTOTYPE>
</PER-INSTANCE-PARAMETERS>
<SHARED-PARAMETERS>
<PARAMETER-DATA-PROTOTYPE>
<SHORT-NAME>SP</SHORT-NAME>
<SW-DATA-DEF-PROPS>
<SW-DATA-DEF-PROPS-VARIANTS>
<SW-DATA-DEF-PROPS-CONDITIONAL>
<SW-ADDR-METHOD-REF DEST="SW-ADDR-METHOD">/
AUTOSAR_MemMap/SwAddrMethods/CALIB_QM</
SW-ADDR-METHOD-REF>
<SW-CALIBRATION-ACCESS>READ-WRITE</SW-
CALIBRATION-ACCESS>
<SW-IMPL-POLICY>STANDARD</SW-IMPL-POLICY>
</SW-DATA-DEF-PROPS-CONDITIONAL>
</SW-DATA-DEF-PROPS-VARIANTS>
</SW-DATA-DEF-PROPS>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

<TYPE-TREF DEST="APPLICATION-PRIMITIVE-DATA-TYPE"
>/AUTOSAR_AISpecification/
ApplicationDataTypes/Flg1</TYPE-TREF>
<INIT-VALUE>
<APPLICATION-VALUE-SPECIFICATION>
<SW-VALUE-CONT>
<UNIT-REF DEST="UNIT">/AUTOSAR/
AISpecification/Units/NoUnit</UNIT-REF>
<SW-VALUES-PHYS>
<VT>Set</VT>
</SW-VALUES-PHYS>
</SW-VALUE-CONT>
</APPLICATION-VALUE-SPECIFICATION>
</INIT-VALUE>
</PARAMETER-DATA-PROTOTYPE>
</SHARED-PARAMETERS>
</SWC-INTERNAL-BEHAVIOR>
</INTERNAL-BEHAVIORS>
</APPLICATION-SW-COMPONENT-TYPE>
<COMPOSITION-SW-COMPONENT-TYPE>
<SHORT-NAME>RootComp</SHORT-NAME>
<COMPONENTS>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>SWC_A</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/ASWC</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>SWC_B</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/ASWC</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>SWC_PA</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/PSWC</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
<SW-COMPONENT-PROTOTYPE>
<SHORT-NAME>SWC_PB</SHORT-NAME>
<TYPE-TREF DEST="APPLICATION-SW-COMPONENT-TYPE">/Demo
/SwComponentTypes/PSWC</TYPE-TREF>
</SW-COMPONENT-PROTOTYPE>
</COMPONENTS>
<CONNECTORS>
<ASSEMBLY-SW-CONNECTOR>
<SHORT-NAME>SWC_PA_EP_SWC_A_EP</SHORT-NAME>
<PROVIDER-IREF>
<CONTEXT-COMPONENT-REF DEST="SW-COMPONENT-PROTOTYPE
">/Demo/SwComponentTypes/RootComp/SWC_PA</
CONTEXT-COMPONENT-REF>
<TARGET-P-PORT-REF DEST="P-PORT-PROTOTYPE">/Demo/
SwComponentTypes/PSWC/EP</TARGET-P-PORT-REF>
</PROVIDER-IREF>
<REQUESTER-IREF>

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 Specification of RTE
AUTOSAR CP Release 4.3.0

<CONTEXT-COMPONENT-REF DEST="SW-COMPONENT-PROTOTYPE
">/Demo/SwComponentTypes/RootComp/SWC_A</
CONTEXT-COMPONENT-REF>
<TARGET-R-PORT-REF DEST="R-PORT-PROTOTYPE">/Demo/
SwComponentTypes/ASWC/EP</TARGET-R-PORT-REF>
</REQUESTER-IREF>
</ASSEMBLY-SW-CONNECTOR>
<ASSEMBLY-SW-CONNECTOR>
<SHORT-NAME>SWC_PB_EP_SWC_B_EP</SHORT-NAME>
<PROVIDER-IREF>
<CONTEXT-COMPONENT-REF DEST="SW-COMPONENT-PROTOTYPE
">/Demo/SwComponentTypes/RootComp/SWC_PB</
CONTEXT-COMPONENT-REF>
<TARGET-P-PORT-REF DEST="P-PORT-PROTOTYPE">/Demo/
SwComponentTypes/PSWC/EP</TARGET-P-PORT-REF>
</PROVIDER-IREF>
<REQUESTER-IREF>
<CONTEXT-COMPONENT-REF DEST="SW-COMPONENT-PROTOTYPE
">/Demo/SwComponentTypes/RootComp/SWC_B</
CONTEXT-COMPONENT-REF>
<TARGET-R-PORT-REF DEST="R-PORT-PROTOTYPE">/Demo/
SwComponentTypes/ASWC/EP</TARGET-R-PORT-REF>
</REQUESTER-IREF>
</ASSEMBLY-SW-CONNECTOR>
</CONNECTORS>
</COMPOSITION-SW-COMPONENT-TYPE>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>
<SHORT-NAME>Systems</SHORT-NAME>
<ELEMENTS>
<SYSTEM>
<SHORT-NAME>Sys</SHORT-NAME>
<CATEGORY>ECU_EXTRACT</CATEGORY>
<ROOT-SOFTWARE-COMPOSITIONS>
<ROOT-SW-COMPOSITION-PROTOTYPE>
<SHORT-NAME>RootSwComp</SHORT-NAME>
<FLAT-MAP-REF DEST="FLAT-MAP">/Demo/FlatMaps/
SysFlatMap</FLAT-MAP-REF>
<SOFTWARE-COMPOSITION-TREF DEST="COMPOSITION-SW-
COMPONENT-TYPE">/Demo/SwComponentTypes/RootComp</
SOFTWARE-COMPOSITION-TREF>
</ROOT-SW-COMPOSITION-PROTOTYPE>
</ROOT-SOFTWARE-COMPOSITIONS>
</SYSTEM>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>
<SHORT-NAME>FlatMaps</SHORT-NAME>
<ELEMENTS>
<FLAT-MAP>
<SHORT-NAME>SysFlatMap</SHORT-NAME>
<INSTANCES>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_A_PIP_Z0</SHORT-NAME>
<ECU-EXTRACT-REFERENCE-IREF>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_A</CONTEXT-
ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
SwComponentTypes/ASWC/ASWC/PIP</TARGET-REF>
</ECU-EXTRACT-REFERENCE-IREF>
<VARIATION-POINT>
<POST-BUILD-VARIANT-CONDITIONS>
<POST-BUILD-VARIANT-CONDITION>
<MATCHING-CRITERION-REF DEST="POST-BUILD-
VARIANT-CRITERION">/Demo/
PostBuildVariantCriterions/Z</MATCHING-
CRITERION-REF>
<VALUE>0</VALUE>
</POST-BUILD-VARIANT-CONDITION>
</POST-BUILD-VARIANT-CONDITIONS>
</VARIATION-POINT>
</FLAT-INSTANCE-DESCRIPTOR>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_A_PIP_Z1</SHORT-NAME>
<ECU-EXTRACT-REFERENCE-IREF>
<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_A</CONTEXT-
ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
SwComponentTypes/ASWC/ASWC/PIP</TARGET-REF>
</ECU-EXTRACT-REFERENCE-IREF>
<VARIATION-POINT>
<POST-BUILD-VARIANT-CONDITIONS>
<POST-BUILD-VARIANT-CONDITION>
<MATCHING-CRITERION-REF DEST="POST-BUILD-
VARIANT-CRITERION">/Demo/
PostBuildVariantCriterions/Z</MATCHING-
CRITERION-REF>
<VALUE>1</VALUE>
</POST-BUILD-VARIANT-CONDITION>
</POST-BUILD-VARIANT-CONDITIONS>
</VARIATION-POINT>
</FLAT-INSTANCE-DESCRIPTOR>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_B_PIP</SHORT-NAME>
<ECU-EXTRACT-REFERENCE-IREF>
<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_B</CONTEXT-
ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
SwComponentTypes/ASWC/ASWC/PIP</TARGET-REF>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

</ECU-EXTRACT-REFERENCE-IREF>
</FLAT-INSTANCE-DESCRIPTOR>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_A_SWC_B_SP_Z0</SHORT-NAME>
<ECU-EXTRACT-REFERENCE-IREF>
<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>
<!-- points to SWC_A but applies also for SWC_B due
to sharedParameter behavior -->
<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_A</CONTEXT-
ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
SwComponentTypes/ASWC/ASWC/SP</TARGET-REF>
</ECU-EXTRACT-REFERENCE-IREF>
<VARIATION-POINT>
<POST-BUILD-VARIANT-CONDITIONS>
<POST-BUILD-VARIANT-CONDITION>
<MATCHING-CRITERION-REF DEST="POST-BUILD-
VARIANT-CRITERION">/Demo/
PostBuildVariantCriterions/Z</MATCHING-
CRITERION-REF>
<VALUE>0</VALUE>
</POST-BUILD-VARIANT-CONDITION>
</POST-BUILD-VARIANT-CONDITIONS>
</VARIATION-POINT>
</FLAT-INSTANCE-DESCRIPTOR>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_A_SWC_B_SP_Z1</SHORT-NAME>
<ECU-EXTRACT-REFERENCE-IREF>
<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>
<!-- points to SWC_A but applies also for SWC_B due
to sharedParameter behavior -->
<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_A</CONTEXT-
ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
SwComponentTypes/ASWC/ASWC/SP</TARGET-REF>
</ECU-EXTRACT-REFERENCE-IREF>
<VARIATION-POINT>
<POST-BUILD-VARIANT-CONDITIONS>
<POST-BUILD-VARIANT-CONDITION>
<MATCHING-CRITERION-REF DEST="POST-BUILD-
VARIANT-CRITERION">/Demo/
PostBuildVariantCriterions/Z</MATCHING-
CRITERION-REF>
<VALUE>1</VALUE>
</POST-BUILD-VARIANT-CONDITION>
</POST-BUILD-VARIANT-CONDITIONS>
</VARIATION-POINT>
</FLAT-INSTANCE-DESCRIPTOR>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_PA_EP_Prm1_Z0</SHORT-NAME>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

<ECU-EXTRACT-REFERENCE-IREF>
<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_PA</CONTEXT
-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="P-PORT-PROTOTYPE">/Demo/
SwComponentTypes/PSWC/EP</CONTEXT-ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
PortInterfaces/EP/Prm1</TARGET-REF>
</ECU-EXTRACT-REFERENCE-IREF>
<VARIATION-POINT>
<POST-BUILD-VARIANT-CONDITIONS>
<POST-BUILD-VARIANT-CONDITION>
<MATCHING-CRITERION-REF DEST="POST-BUILD-
VARIANT-CRITERION">/Demo/
PostBuildVariantCriterions/Z</MATCHING-
CRITERION-REF>
<VALUE>0</VALUE>
</POST-BUILD-VARIANT-CONDITION>
</POST-BUILD-VARIANT-CONDITIONS>
</VARIATION-POINT>
</FLAT-INSTANCE-DESCRIPTOR>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_PA_EP_Prm1_Z1</SHORT-NAME>
<ECU-EXTRACT-REFERENCE-IREF>
<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_PA</CONTEXT
-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="P-PORT-PROTOTYPE">/Demo/
SwComponentTypes/PSWC/EP</CONTEXT-ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
PortInterfaces/EP/Prm1</TARGET-REF>
</ECU-EXTRACT-REFERENCE-IREF>
<VARIATION-POINT>
<POST-BUILD-VARIANT-CONDITIONS>
<POST-BUILD-VARIANT-CONDITION>
<MATCHING-CRITERION-REF DEST="POST-BUILD-
VARIANT-CRITERION">/Demo/
PostBuildVariantCriterions/Z</MATCHING-
CRITERION-REF>
<VALUE>1</VALUE>
</POST-BUILD-VARIANT-CONDITION>
</POST-BUILD-VARIANT-CONDITIONS>
</VARIATION-POINT>
</FLAT-INSTANCE-DESCRIPTOR>
<FLAT-INSTANCE-DESCRIPTOR>
<SHORT-NAME>SWC_PB_EP_Prm1</SHORT-NAME>
<ECU-EXTRACT-REFERENCE-IREF>
<CONTEXT-ELEMENT-REF DEST="ROOT-SW-COMPOSITION-
PROTOTYPE">/Demo/Systems/Sys/RootSwComp</
CONTEXT-ELEMENT-REF>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

<CONTEXT-ELEMENT-REF DEST="SW-COMPONENT-PROTOTYPE">
/Demo/SwComponentTypes/RootComp/SWC_PB</CONTEXT
-ELEMENT-REF>
<CONTEXT-ELEMENT-REF DEST="P-PORT-PROTOTYPE">/Demo/
SwComponentTypes/PSWC/EP</CONTEXT-ELEMENT-REF>
<TARGET-REF DEST="PARAMETER-DATA-PROTOTYPE">/Demo/
PortInterfaces/EP/Prm1</TARGET-REF>
</ECU-EXTRACT-REFERENCE-IREF>
</FLAT-INSTANCE-DESCRIPTOR>
</INSTANCES>
</FLAT-MAP>
</ELEMENTS>
</AR-PACKAGE>
<AR-PACKAGE>
<SHORT-NAME>PostBuildVariantCriterions</SHORT-NAME>
<ELEMENTS>
<POST-BUILD-VARIANT-CRITERION>
<SHORT-NAME>Z</SHORT-NAME>
<COMPU-METHOD-REF DEST="COMPU-METHOD">/
AUTOSAR_AISpecification/CompuMethods/TrsmTyp1</COMPU-
METHOD-REF>
</POST-BUILD-VARIANT-CRITERION>
</ELEMENTS>
</AR-PACKAGE>
</AR-PACKAGES>
</AR-PACKAGE>
</AR-PACKAGES>
</AUTOSAR>

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

G Changes History

G.1 Changes in Rel. 4.0 Rev. 2 compared to Rel. 4.0 Rev. 1

G.1.1 Deleted SWS Items

The following SWS Items were removed in Rel. 4.0 Rev. 2: rte_sws_1254,
rte_sws_3552, rte_sws_3557, rte_sws_3559, rte_sws_3563, rte_sws_3564,
rte_sws_3568, rte_sws_3588, rte_sws_3593, rte_sws_3743, rte_sws_5512.

G.1.2 Changed SWS Items

The following SWS Items were changed in Rel. 4.0 Rev. 2: [SWS_Rte_01086],
[SWS_Rte_01111], [SWS_Rte_01113], [SWS_Rte_01114], [SWS_Rte_01118],
[SWS_Rte_01156], [SWS_Rte_01355], [SWS_Rte_02517], [SWS_Rte_02527],
[SWS_Rte_02528], [SWS_Rte_02613], [SWS_Rte_02615], [SWS_Rte_02679],
[SWS_Rte_02728], [SWS_Rte_02730], [SWS_Rte_02747], [SWS_Rte_02752],
[SWS_Rte_02753], [SWS_Rte_03001], [SWS_Rte_03560], [SWS_Rte_03562],
[SWS_Rte_03567], [SWS_Rte_03598], [SWS_Rte_03599], [SWS_Rte_03774],
[SWS_Rte_03827], [SWS_Rte_03837], [SWS_Rte_03930], [SWS_Rte_03953],
[SWS_Rte_03954], [SWS_Rte_03955], [SWS_Rte_03956], [SWS_Rte_03957],
[SWS_Rte_05021], [SWS_Rte_05156], SWS_Rte_05506, [SWS_Rte_05509],
[SWS_Rte_06010], [SWS_Rte_06633], [SWS_Rte_07020], [SWS_Rte_07021],
[SWS_Rte_07041], [SWS_Rte_07184], [SWS_Rte_07187], [SWS_Rte_07195],
[SWS_Rte_07262], [SWS_Rte_07280], [SWS_Rte_07282], [SWS_Rte_07293],
[SWS_Rte_07294], [SWS_Rte_07375], [SWS_Rte_07376], [SWS_Rte_07409],
[SWS_Rte_07586], [SWS_Rte_07589], [SWS_Rte_07632], [SWS_Rte_07636],
[SWS_Rte_07637], [SWS_Rte_07667], [SWS_Rte_07680], [SWS_Rte_07683],
rte_sws_ext_3811.

G.1.3 Added SWS Items

The following SWS Items were added in Rel. 4.0 Rev. 2: [SWS_Rte_02761],
rte_sws_3850, rte_sws_3851, [SWS_Rte_03852], [SWS_Rte_03853],
[SWS_Rte_07045], [SWS_Rte_07046], [SWS_Rte_07047], [SWS_Rte_07048],
[SWS_Rte_07049], [SWS_Rte_07050], [SWS_Rte_07051], [SWS_Rte_07052],
[SWS_Rte_07053], [SWS_Rte_07054], [SWS_Rte_07055], [SWS_Rte_07056],
[SWS_Rte_07057], [SWS_Rte_07058], [SWS_Rte_07059], [SWS_Rte_07060],
[SWS_Rte_07061], [SWS_Rte_07062], [SWS_Rte_07063], [SWS_Rte_07064],
[SWS_Rte_07065], [SWS_Rte_07066], [SWS_Rte_07067], [SWS_Rte_07068],
[SWS_Rte_07069], [SWS_Rte_07070], [SWS_Rte_07071], [SWS_Rte_07072],
[SWS_Rte_07073], [SWS_Rte_07074], [SWS_Rte_07075], [SWS_Rte_07076],
[SWS_Rte_07077], [SWS_Rte_07078], [SWS_Rte_07079], [SWS_Rte_07080],

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_07081], [SWS_Rte_08000], [SWS_Rte_08001], [SWS_Rte_08002],

[SWS_Rte_08300], [SWS_Rte_08301], [SWS_Rte_08302].

G.2 Changes in Rel. 4.0 Rev. 3 compared to Rel. 4.0 Rev. 2

G.2.1 Deleted SWS Items

The following SWS Items were removed in Rel. 4.0 Rev. 3: rte_sws_3838,
rte_sws_3844, rte_sws_3850, rte_sws_5171, rte_sws_7106, rte_sws_7108,
rte_sws_7164, rte_sws_7165, rte_sws_7168, rte_sws_7176, rte_sws_7674.

G.2.2 Changed SWS Items

The following SWS Items were changed in Rel. 4.0 Rev. 3: [SWS_Rte_01018],
[SWS_Rte_01019], [SWS_Rte_01020], [SWS_Rte_01156], [SWS_Rte_01171],
[SWS_Rte_01238], [SWS_Rte_01239], [SWS_Rte_01248], [SWS_Rte_01249],
[SWS_Rte_01300], [SWS_Rte_02500], [SWS_Rte_02568], [SWS_Rte_02576],
[SWS_Rte_02627], [SWS_Rte_02628], [SWS_Rte_02629], [SWS_Rte_02631],
[SWS_Rte_02648], [SWS_Rte_02659], [SWS_Rte_02662], [SWS_Rte_02664],
[SWS_Rte_02675], [SWS_Rte_02732], [SWS_Rte_03526], [SWS_Rte_03714],
[SWS_Rte_03731], [SWS_Rte_03782], [SWS_Rte_03793], [SWS_Rte_03809],
[SWS_Rte_03810], [SWS_Rte_03813], [SWS_Rte_03827], [SWS_Rte_03828],
[SWS_Rte_03829], [SWS_Rte_03831], [SWS_Rte_03832], [SWS_Rte_03833],
[SWS_Rte_03837], [SWS_Rte_03839], [SWS_Rte_03840], [SWS_Rte_03841],
[SWS_Rte_03842], [SWS_Rte_03843], [SWS_Rte_03845], [SWS_Rte_03846],
[SWS_Rte_03847], [SWS_Rte_03848], [SWS_Rte_03849], [SWS_Rte_03851],
[SWS_Rte_03907], [SWS_Rte_03949], [SWS_Rte_04526], [SWS_Rte_05051],
[SWS_Rte_05052], SWS_Rte_05059, [SWS_Rte_05062], [SWS_Rte_05078],
[SWS_Rte_05127], [SWS_Rte_05128], [SWS_Rte_06513], [SWS_Rte_06515],
[SWS_Rte_06518], [SWS_Rte_06519], [SWS_Rte_06520], [SWS_Rte_06530],
[SWS_Rte_06532], [SWS_Rte_06535], [SWS_Rte_06536], [SWS_Rte_07022],
[SWS_Rte_07030], [SWS_Rte_07036], [SWS_Rte_07037], [SWS_Rte_07038],
[SWS_Rte_07047], [SWS_Rte_07048], [SWS_Rte_07069], [SWS_Rte_07104],
[SWS_Rte_07109], [SWS_Rte_07110], [SWS_Rte_07111], [SWS_Rte_07113],
[SWS_Rte_07114], [SWS_Rte_07116], [SWS_Rte_07133], [SWS_Rte_07136],
[SWS_Rte_07144], [SWS_Rte_07148], [SWS_Rte_07149], [SWS_Rte_07157],
[SWS_Rte_07162], [SWS_Rte_07163], [SWS_Rte_07166], [SWS_Rte_07175],
[SWS_Rte_07182], [SWS_Rte_07185], [SWS_Rte_07190], [SWS_Rte_07194],
[SWS_Rte_07195], [SWS_Rte_07200], [SWS_Rte_07203], [SWS_Rte_07214],
[SWS_Rte_07224], [SWS_Rte_07250], [SWS_Rte_07253], [SWS_Rte_07255],
[SWS_Rte_07260], [SWS_Rte_07261], [SWS_Rte_07263], [SWS_Rte_07266],
[SWS_Rte_07282], [SWS_Rte_07292], [SWS_Rte_07293], [SWS_Rte_07294],
[SWS_Rte_07295], [SWS_Rte_07310], [SWS_Rte_07315], [SWS_Rte_07381],

1097 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_07382], [SWS_Rte_07383], [SWS_Rte_07501], [SWS_Rte_07503],

[SWS_Rte_07504], [SWS_Rte_07543], [SWS_Rte_07544], [SWS_Rte_07552],
[SWS_Rte_07554], [SWS_Rte_07555], [SWS_Rte_07556], [SWS_Rte_07670],
[SWS_Rte_07682], [SWS_Rte_08300].

G.2.3 Added SWS Items

The following SWS Items were added in Rel. 4.0 Rev. 3: [SWS_Rte_03854],
[SWS_Rte_03855], [SWS_Rte_03856], [SWS_Rte_03857], [SWS_Rte_03858],
[SWS_Rte_03859], [SWS_Rte_03860], [SWS_Rte_03861], [SWS_Rte_06700],
[SWS_Rte_06701], [SWS_Rte_06702], [SWS_Rte_06703], [SWS_Rte_06704],
[SWS_Rte_06705], [SWS_Rte_06706], [SWS_Rte_06707], [SWS_Rte_06708],
[SWS_Rte_06709], [SWS_Rte_06710], [SWS_Rte_06711], [SWS_Rte_06712],
[SWS_Rte_06713], [SWS_Rte_06714], [SWS_Rte_06715], [SWS_Rte_06716],
[SWS_Rte_06717], [SWS_Rte_06718], [SWS_Rte_06719], [SWS_Rte_06720],
[SWS_Rte_06721], [SWS_Rte_06722], [SWS_Rte_06723], [SWS_Rte_06724],
[SWS_Rte_06725], [SWS_Rte_06726], [SWS_Rte_07082], [SWS_Rte_07083],
[SWS_Rte_07084], [SWS_Rte_07085], [SWS_Rte_07086], [SWS_Rte_07087],
[SWS_Rte_07088], [SWS_Rte_07089], [SWS_Rte_07090], [SWS_Rte_07091],
[SWS_Rte_07092], [SWS_Rte_07093], [SWS_Rte_07094], [SWS_Rte_07095],
[SWS_Rte_07096], [SWS_Rte_07097], [SWS_Rte_07099], [SWS_Rte_07593],
[SWS_Rte_07594], [SWS_Rte_07595], [SWS_Rte_07596], [SWS_Rte_07692],
[SWS_Rte_07693], [SWS_Rte_07694], [SWS_Rte_07920], [SWS_Rte_07921],
[SWS_Rte_07922], [SWS_Rte_07923], [SWS_Rte_07924], [SWS_Rte_08004],
[SWS_Rte_08005], [SWS_Rte_08007], [SWS_Rte_08008], [SWS_Rte_08009],
[SWS_Rte_08016], [SWS_Rte_08017], [SWS_Rte_08018], [SWS_Rte_08020],
[SWS_Rte_08021], [SWS_Rte_08022], [SWS_Rte_08023], [SWS_Rte_08024],
[SWS_Rte_08025], [SWS_Rte_08026], [SWS_Rte_08027], [SWS_Rte_08028],
[SWS_Rte_08029], [SWS_Rte_08030], [SWS_Rte_08031], [SWS_Rte_08032],
[SWS_Rte_08033], [SWS_Rte_08034], [SWS_Rte_08035], [SWS_Rte_08036],
[SWS_Rte_08037], [SWS_Rte_08038], [SWS_Rte_08039], [SWS_Rte_08040],
[SWS_Rte_08041], [SWS_Rte_08042], [SWS_Rte_08043], [SWS_Rte_08044],
[SWS_Rte_08045], [SWS_Rte_08303], [SWS_Rte_08304], [SWS_Rte_08305],
[SWS_Rte_08306], [SWS_Rte_08307], [SWS_Rte_08308], [SWS_Rte_08400],
[SWS_Rte_08401], [SWS_Rte_08402], [SWS_Rte_08403], [SWS_Rte_08404],
[SWS_Rte_08500], [SWS_Rte_08501], SWS_Rte_08503, [SWS_Rte_08504],
[SWS_Rte_08505], [SWS_Rte_08506], [SWS_Rte_08507], [SWS_Rte_08509],
[SWS_Rte_08510], rte_sws_ext_7597, rte_sws_ext_7598, rte_sws_ext_8502,
rte_sws_ext_8508.

1098 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

G.3 Changes in Rel. 4.1 Rev. 1 compared to Rel. 4.0 Rev. 3

G.3.1 Renamed SWS Items

The external requirements are redefined as AUTOSAR constraints.

rte_sws_ext_3811 [constr_9004] Usage of WaitPoints is restricted depending
on ExclusiveAreaImplMechanism
rte_sws_ext_7598 [ The references RteSwcTriggerSourceRef
SWS_Rte_CONSTR_09005] has to be consistent with the RteSoftware-
ComponentInstanceRef
rte_sws_ext_7597 [SWS_Rte_CONSTR_09006] The references RteBswTriggerSourceRef
has to be consistent with the RteBswImple-
mentationRef
rte_sws_ext_7547 [SWS_Rte_CONSTR_09007] issuedTrigger and BswTriggerDirectImplementa-
tion are mutually exclusive
rte_sws_ext_7040 [SWS_Rte_CONSTR_09008] The same Trigger in a Trigger Sink must not
be connected to multiple Trigger Sources
rte_sws_ext_7550 [SWS_Rte_CONSTR_09009] Synchronized Trigger shall not be referenced
by more than one type of access method
rte_sws_ext_7521 [SWS_Rte_CONSTR_09010] Worst case execution time shall be less than the
GCD
rte_sws_ext_7351 [SWS_Rte_CONSTR_09011] NvMBlockDescriptor related to a RAM
Block of a NvBlockSwComponentType shall
use NvMBlockUseSyncMechanism
rte_sws_ext_7816 [SWS_Rte_CONSTR_09012] Category 1 interrupts shall not access the RTE
rte_sws_ext_2542 [SWS_Rte_CONSTR_09013] Exactly one mode or one mode transition shall
be active
rte_sws_ext_7565 [SWS_Rte_CONSTR_09014] ModeSwitchPoint(s) and managedMode-
Group(s) are mutually exclusive for synchronized
ModeDeclarationGroupPrototypes
rte_sws_ext_7818 [SWS_Rte_CONSTR_09015] Rte_Write API may only be used by the runn-
able that describe its usage
rte_sws_ext_7819 [SWS_Rte_CONSTR_09016] Rte_Send API may only be used by the runn-
able that describes its usage
rte_sws_ext_2681 [SWS_Rte_CONSTR_09017] Rte_Switch API may only be used by the runn-
able that describes its usage
rte_sws_ext_2682 [SWS_Rte_CONSTR_09018] Rte_Invalidate API may only be used by the
runnable that describe its usage
rte_sws_ext_2687 [SWS_Rte_CONSTR_09019] Rte_Feedback API may only be used by the
runnable that describe its usage
rte_sws_ext_2726 [SWS_Rte_CONSTR_09020] Rte_SwitchAck API may only be used by the
runnable that describe its usage
rte_sws_ext_2683 [SWS_Rte_CONSTR_09021] Rte_Read API may only be used by the runn-
able that describe its usage
rte_sws_ext_7397 [SWS_Rte_CONSTR_09022] Rte_DRead API may only be used by the runn-
able that describe its usage
rte_sws_ext_2684 [SWS_Rte_CONSTR_09023] Rte_Receive API may only be used by the
runnable that describe its usage
rte_sws_ext_2685 [SWS_Rte_CONSTR_09024] Rte_Call API may only be used by the runn-
able that describe its usage
rte_sws_ext_2686 [SWS_Rte_CONSTR_09025] Blocking Rte_Result API may only be used by
the runnable that describe the WaitPoint
rte_sws_ext_7679 [SWS_Rte_CONSTR_09026] Rte_IWriteRef may not return values written
in previous executions

1099 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

rte_sws_ext_2601 [SWS_Rte_CONSTR_09027] Rte_IStatus API shall only be used by a

RunnableEntity describing an access to the
data or which is triggered by an error event re-
lated to this data
rte_sws_ext_7171 [SWS_Rte_CONSTR_09028] Rte_Enter and Rte_Exit API may only be
used by runnables describing its usage
rte_sws_ext_7172 [SWS_Rte_CONSTR_09029] Nested call of Rte_Enter and Rte_Exit is re-
stricted
rte_sws_ext_7568 [SWS_Rte_CONSTR_09030] Rte_Mode API may only be used by the runn-
able that describe its usage
rte_sws_ext_8502 [SWS_Rte_CONSTR_09031] Rte_Mode API may only be used by the runn-
able that describe its usage
rte_sws_ext_7202 [SWS_Rte_CONSTR_09032] Rte_Trigger API may only be used by the
runnable that describe its usage
rte_sws_ext_7205 [SWS_Rte_CONSTR_09033] Rte_IrTrigger API may only be used by the
runnable that describe its usage
rte_sws_ext_7603 [SWS_Rte_CONSTR_09034] Rte_IsUpdated API may only be used by the
runnable that describe the access to the corre-
sponding data
rte_sws_ext_2582 [SWS_Rte_CONSTR_09035] Rte_Start shall be called only once
rte_sws_ext_7577 [SWS_Rte_CONSTR_09036] Rte_Start API may only be used after call of
SchM_Init
rte_sws_ext_2714 [SWS_Rte_CONSTR_09037] Rte_Start API shall be called on every core
rte_sws_ext_2583 [SWS_Rte_CONSTR_09038] Rte_Stop shall be called before BSW shutdown
rte_sws_ext_7332 [SWS_Rte_CONSTR_09039] Rte_PartitionTerminated shall be called
only once
rte_sws_ext_7618 [SWS_Rte_CONSTR_09040] Rte_PartitionRestarting shall be called
only once
rte_sws_ext_7337 [SWS_Rte_CONSTR_09041] Rte_RestartPartition shall be called from
RestartTask
rte_sws_ext_1190 [SWS_Rte_CONSTR_09042] Array Implementation Data Types
needs at least one element
rte_sws_ext_1192 [SWS_Rte_CONSTR_09043] Structure Implementation Data Types
needs at least one element
rte_sws_ext_7147 [constr_9044] Union Implementation Data Type shall include at
least two elements
rte_sws_ext_2704 [SWS_Rte_CONSTR_09045] The upper two bits of the of the server return
value are reserved
rte_sws_ext_7285 [SWS_Rte_CONSTR_09046] SchM_Enter and SchM_Exit API may only be
used by BswModuleEntitys describing its us-
age
rte_sws_ext_7529 [SWS_Rte_CONSTR_09047] Nested call of SchM_Enter and SchM_Exit
API is restricted
rte_sws_ext_7189 [SWS_Rte_CONSTR_09048] SchM_Exit API may only be used by BswMod-
uleEntitys that describe its usage
rte_sws_ext_7257 [SWS_Rte_CONSTR_09049] SchM_Switch API may only be used by
BswModuleEntitys that describe its usage
rte_sws_ext_7587 [SWS_Rte_CONSTR_09050] SchM_Mode API may only be used by BswMod-
uleEntitys that describe its usage
rte_sws_ext_8508 [SWS_Rte_CONSTR_09051] SchM_Mode API may only be used by BswMod-
uleEntitys that describe its usage
rte_sws_ext_7567 [SWS_Rte_CONSTR_09052] SchM_SwitchAck API may only be used by
BswModuleEntitys that describe its usage
rte_sws_ext_7265 [SWS_Rte_CONSTR_09053] SchM_Trigger API may only be used by the
BswModuleEntitys that describe its usage

1100 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

rte_sws_ext_7268 [SWS_Rte_CONSTR_09054] SchM_ActMainFunction API may only be

used by the BswModuleEntitys that describe
its usage
rte_sws_ext_7272 [SWS_Rte_CONSTR_09055] SchM_Init shall be called only once
rte_sws_ext_7576 [SWS_Rte_CONSTR_09056] SchM_Deinit API may only be used after the
was RTE finalized
rte_sws_ext_7276 [SWS_Rte_CONSTR_09057] SchM_Deinit shall be called before shut down
of BSW
rte_sws_ext_7287 [SWS_Rte_CONSTR_09058] BswSchedulableEntity is not allowed to
have service arguments or return value
rte_sws_ext_7512 [SWS_Rte_CONSTR_09059] Usage of Basic Software Scheduler API prereq-
uisites the include of the Module Interlink Header
File

Table G.1: external requirements converted to constraints

rte_sws_7649 [SWS_Rte_CONSTR_09000] Rte_IFeedback API may only be used by the

RunnableEntitys that describe its usage

Table G.2: requirements converted to constraints

G.3.2 Added constraints

The following constraints were added in Rel. 4.1 Rev.

1: [SWS_Rte_CONSTR_03510], [SWS_Rte_CONSTR_09060],
[SWS_Rte_CONSTR_09061], [SWS_Rte_CONSTR_09062],
[SWS_Rte_CONSTR_09063], [SWS_Rte_CONSTR_09064]

G.3.3 Deleted SWS Items

The following SWS items were removed in Rel. 4.1 Rev. 1: SWS_Rte_02652,
SWS_Rte_02731, SWS_Rte_03555, SWS_Rte_03569, SWS_Rte_03581,
SWS_Rte_03747, SWS_Rte_03803, SWS_Rte_05020, SWS_Rte_05033,
SWS_Rte_05054, SWS_Rte_05055, SWS_Rte_05056, SWS_Rte_05057,
SWS_Rte_05058, SWS_Rte_05059, SWS_Rte_05066, SWS_Rte_05067,
SWS_Rte_05110, SWS_Rte_05163, SWS_Rte_06028, SWS_Rte_07296,
SWS_Rte_07649, SWS_Rte_07656, SWS_Rte_07657, SWS_Rte_07658,
SWS_Rte_07665, SWS_Rte_07687, SWS_Rte_07688, SWS_Rte_07690,
SWS_Rte_07691, SWS_Rte_08503.

G.3.4 Changed SWS Items

The following SWS items were changed in Rel. 4.1 Rev. 1: [SWS_Rte_01003],
[SWS_Rte_01019], [SWS_Rte_01058], [SWS_Rte_01060], [SWS_Rte_01061],

1101 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_01064], [SWS_Rte_01065], [SWS_Rte_01071], [SWS_Rte_01072],

[SWS_Rte_01083], [SWS_Rte_01091], [SWS_Rte_01092], [SWS_Rte_01102],
[SWS_Rte_01111], [SWS_Rte_01118], [SWS_Rte_01120], [SWS_Rte_01123],
[SWS_Rte_01126], [SWS_Rte_01150], [SWS_Rte_01206], [SWS_Rte_01252],
[SWS_Rte_01284], [SWS_Rte_01285], [SWS_Rte_01286], [SWS_Rte_01317],
[SWS_Rte_01354], [SWS_Rte_01358], [SWS_Rte_01360], [SWS_Rte_01368],
[SWS_Rte_02516], [SWS_Rte_02530], [SWS_Rte_02544], [SWS_Rte_02571],
[SWS_Rte_02579], [SWS_Rte_02594], [SWS_Rte_02599], [SWS_Rte_02600],
[SWS_Rte_02610], [SWS_Rte_02611], [SWS_Rte_02612], [SWS_Rte_02613],
[SWS_Rte_02614], [SWS_Rte_02615], [SWS_Rte_02619], [SWS_Rte_02623],
[SWS_Rte_02628], [SWS_Rte_02631], [SWS_Rte_02649], [SWS_Rte_02651],
[SWS_Rte_02679], [SWS_Rte_02702], [SWS_Rte_02707], [SWS_Rte_02709],
[SWS_Rte_02712], [SWS_Rte_02713], [SWS_Rte_02725], [SWS_Rte_02736],
[SWS_Rte_02739], [SWS_Rte_02747], [SWS_Rte_02757], [SWS_Rte_02759],
[SWS_Rte_02760], [SWS_Rte_03001], [SWS_Rte_03002], [SWS_Rte_03004],
[SWS_Rte_03005], [SWS_Rte_03012], [SWS_Rte_03503], [SWS_Rte_03504],
[SWS_Rte_03526], [SWS_Rte_03527], [SWS_Rte_03550], [SWS_Rte_03553],
[SWS_Rte_03560], [SWS_Rte_03565], [SWS_Rte_03589], [SWS_Rte_03595],
[SWS_Rte_03598], [SWS_Rte_03602], [SWS_Rte_03603], [SWS_Rte_03714],
[SWS_Rte_03741], [SWS_Rte_03744], [SWS_Rte_03755], [SWS_Rte_03760],
[SWS_Rte_03764], [SWS_Rte_03770], [SWS_Rte_03775], [SWS_Rte_03776],
[SWS_Rte_03788], [SWS_Rte_03800], [SWS_Rte_03809], [SWS_Rte_03827],
[SWS_Rte_03828], [SWS_Rte_03843], [SWS_Rte_03849], [SWS_Rte_03857],
[SWS_Rte_03927], [SWS_Rte_03928], [SWS_Rte_03952], [SWS_Rte_03955],
[SWS_Rte_03970], [SWS_Rte_04508], [SWS_Rte_04515], [SWS_Rte_04516],
[SWS_Rte_04518], [SWS_Rte_05021], [SWS_Rte_05026], [SWS_Rte_05048],
[SWS_Rte_05052], [SWS_Rte_05065], [SWS_Rte_05084], [SWS_Rte_05085],
[SWS_Rte_05090], [SWS_Rte_05111], [SWS_Rte_05131], [SWS_Rte_05145],
[SWS_Rte_05146], [SWS_Rte_05147], [SWS_Rte_05164], [SWS_Rte_05189],
SWS_Rte_05506, [SWS_Rte_05509], [SWS_Rte_06532], [SWS_Rte_06533],
[SWS_Rte_06713], [SWS_Rte_06714], [SWS_Rte_06715], [SWS_Rte_06718],
[SWS_Rte_07006], [SWS_Rte_07008], [SWS_Rte_07031], [SWS_Rte_07047],
[SWS_Rte_07048], [SWS_Rte_07054], [SWS_Rte_07056], [SWS_Rte_07059],
[SWS_Rte_07075], [SWS_Rte_07092], [SWS_Rte_07093], [SWS_Rte_07099],
[SWS_Rte_07101], [SWS_Rte_07122], [SWS_Rte_07135], [SWS_Rte_07140],
[SWS_Rte_07152], [SWS_Rte_07170], [SWS_Rte_07175], [SWS_Rte_07178],
[SWS_Rte_07187], [SWS_Rte_07194], [SWS_Rte_07195], [SWS_Rte_07200],
[SWS_Rte_07203], [SWS_Rte_07251], [SWS_Rte_07254], [SWS_Rte_07270],
[SWS_Rte_07282], [SWS_Rte_07283], [SWS_Rte_07289], [SWS_Rte_07290],
[SWS_Rte_07293], [SWS_Rte_07294], [SWS_Rte_07346], [SWS_Rte_07367],
[SWS_Rte_07384], [SWS_Rte_07385], [SWS_Rte_07387], [SWS_Rte_07390],
[SWS_Rte_07394], [SWS_Rte_07396], [SWS_Rte_07530], [SWS_Rte_07559],
[SWS_Rte_07562], [SWS_Rte_07563], [SWS_Rte_07575], [SWS_Rte_07586],
[SWS_Rte_07590], [SWS_Rte_07621], [SWS_Rte_07647], [SWS_Rte_07648],
[SWS_Rte_07654], [SWS_Rte_07655], [SWS_Rte_07675], [SWS_Rte_07680],

1102 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_08001], [SWS_Rte_08002], [SWS_Rte_08016], [SWS_Rte_08039],

[SWS_Rte_08301], [SWS_Rte_08500], [SWS_Rte_08505].

G.3.5 Added SWS Items

The following SWS items were added in Rel. 4.1 Rev. 1: [SWS_Rte_03862],
[SWS_Rte_06727], [SWS_Rte_06728], [SWS_Rte_06729], [SWS_Rte_06730],
[SWS_Rte_06731], [SWS_Rte_06732], [SWS_Rte_06733], [SWS_Rte_06734],
[SWS_Rte_06735], [SWS_Rte_06736], [SWS_Rte_06737], [SWS_Rte_06738],
[SWS_Rte_06739], [SWS_Rte_06740], [SWS_Rte_06741], [SWS_Rte_06742],
[SWS_Rte_06743], [SWS_Rte_06744], [SWS_Rte_06745], [SWS_Rte_06746],
[SWS_Rte_06747], [SWS_Rte_06748], [SWS_Rte_06749], [SWS_Rte_06750],
[SWS_Rte_06751], [SWS_Rte_06752], [SWS_Rte_06753], [SWS_Rte_06754],
[SWS_Rte_06755], [SWS_Rte_06756], [SWS_Rte_06757], [SWS_Rte_06758],
[SWS_Rte_06759], [SWS_Rte_06760], [SWS_Rte_06761], [SWS_Rte_06762],
[SWS_Rte_06764], [SWS_Rte_06765], [SWS_Rte_06766], [SWS_Rte_06767],
[SWS_Rte_06768], [SWS_Rte_06769], [SWS_Rte_06770], [SWS_Rte_06771],
[SWS_Rte_06772], [SWS_Rte_06773], [SWS_Rte_06774], [SWS_Rte_06775],
[SWS_Rte_06776], [SWS_Rte_06777], [SWS_Rte_06778], [SWS_Rte_06779],
[SWS_Rte_06780], [SWS_Rte_06781], [SWS_Rte_06782], [SWS_Rte_06783],
[SWS_Rte_06784], [SWS_Rte_06785], [SWS_Rte_06786], [SWS_Rte_06787],
[SWS_Rte_06788], [SWS_Rte_06789], [SWS_Rte_06791], [SWS_Rte_06792],
[SWS_Rte_06793], [SWS_Rte_06794], [SWS_Rte_06795], [SWS_Rte_06796],
[SWS_Rte_06797], [SWS_Rte_07828], [SWS_Rte_07829], [SWS_Rte_07830],
[SWS_Rte_07831], [SWS_Rte_07832], [SWS_Rte_07833], [SWS_Rte_07834],
[SWS_Rte_07835], [SWS_Rte_07836], [SWS_Rte_07837], [SWS_Rte_07838],
[SWS_Rte_07839], [SWS_Rte_07840], [SWS_Rte_07841], [SWS_Rte_07925],
[SWS_Rte_07926], [SWS_Rte_07927], [SWS_Rte_08046], [SWS_Rte_08047],
[SWS_Rte_08048], [SWS_Rte_08049], [SWS_Rte_08050], [SWS_Rte_08051],
[SWS_Rte_08052], [SWS_Rte_08053], [SWS_Rte_08054], [SWS_Rte_08055],
[SWS_Rte_08056], [SWS_Rte_08057], [SWS_Rte_08058], [SWS_Rte_08059],
[SWS_Rte_08060], [SWS_Rte_08061], [SWS_Rte_08062], [SWS_Rte_08063],
[SWS_Rte_08064], [SWS_Rte_08065], [SWS_Rte_08066], [SWS_Rte_08067],
[SWS_Rte_08068], [SWS_Rte_08069], [SWS_Rte_08070], [SWS_Rte_08071],
[SWS_Rte_08072], [SWS_Rte_08073], [SWS_Rte_08309], [SWS_Rte_08310],
[SWS_Rte_08311], [SWS_Rte_08405], [SWS_Rte_08406], [SWS_Rte_08407],
[SWS_Rte_08408], [SWS_Rte_08409], [SWS_Rte_08410], [SWS_Rte_08411],
[SWS_Rte_08412], [SWS_Rte_08511], [SWS_Rte_08512], [SWS_Rte_08513],
[SWS_Rte_08514], [SWS_Rte_08600], [SWS_Rte_08601], [SWS_Rte_08700],
[SWS_Rte_08701], [SWS_Rte_08702], [SWS_Rte_08703], [SWS_Rte_08704],
[SWS_Rte_08705], [SWS_Rte_08706], [SWS_Rte_08707], [SWS_Rte_08708],
[SWS_Rte_08709], [SWS_Rte_08710], [SWS_Rte_08711], [SWS_Rte_08712],
[SWS_Rte_08713], [SWS_Rte_08725], [SWS_Rte_08726], [SWS_Rte_08727],
[SWS_Rte_08728], [SWS_Rte_08729], [SWS_Rte_08730], [SWS_Rte_08731],
[SWS_Rte_08732], [SWS_Rte_08733], [SWS_Rte_08734], [SWS_Rte_08735],

1103 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_08736], [SWS_Rte_08737], [SWS_Rte_08738], [SWS_Rte_08739],

[SWS_Rte_08740], [SWS_Rte_08741], [SWS_Rte_08742], [SWS_Rte_08743],
[SWS_Rte_08744], [SWS_Rte_08745], [SWS_Rte_08746], [SWS_Rte_08747],
[SWS_Rte_08748], [SWS_Rte_08749], [SWS_Rte_08750], [SWS_Rte_08751],
[SWS_Rte_08752], [SWS_Rte_08753], [SWS_Rte_08754], [SWS_Rte_08755],
[SWS_Rte_08756], [SWS_Rte_08757], [SWS_Rte_08758], [SWS_Rte_08759],
[SWS_Rte_08761], [SWS_Rte_08762], [SWS_Rte_08763], [SWS_Rte_08764],
[SWS_Rte_08765], [SWS_Rte_08766].

G.4 Changes in Rel. 4.1 Rev. 2 compared to Rel. 4.1 Rev. 1

G.4.1 Added Traceables in 4.1.2

[SWS_Rte_01371] [SWS_Rte_01372] [SWS_Rte_07410] [SWS_Rte_07411]

[SWS_Rte_07412] [SWS_Rte_07842] [SWS_Rte_07843] [SWS_Rte_07844]
[SWS_Rte_07928] [SWS_Rte_08074] [SWS_Rte_08075] [SWS_Rte_08076]
[SWS_Rte_08312] [SWS_Rte_08313] [SWS_Rte_08314] [SWS_Rte_08315]
[SWS_Rte_08316] [SWS_Rte_08317] [SWS_Rte_08413] [SWS_Rte_08414]
[SWS_Rte_08415] [SWS_Rte_08416] [SWS_Rte_08767] [SWS_Rte_08768]
[SWS_Rte_08769] [SWS_Rte_08770] [SWS_Rte_08771] [SWS_Rte_08772]
[SWS_Rte_08773] [SWS_Rte_08774] [SWS_Rte_08775] [SWS_Rte_08776]
[SWS_Rte_08800] [SWS_Rte_08801]

G.4.2 Changed Traceables in 4.1.2

[SWS_Rte_01003] [SWS_Rte_01296] [SWS_Rte_01297] [SWS_Rte_01358]

[SWS_Rte_01360] [SWS_Rte_01368] [SWS_Rte_02549] [SWS_Rte_02600]
[SWS_Rte_02678] [SWS_Rte_03012] [SWS_Rte_03526] [SWS_Rte_03527]
[SWS_Rte_03571] [SWS_Rte_03755] [SWS_Rte_03788] [SWS_Rte_03809]
[SWS_Rte_03810] [SWS_Rte_03813] [SWS_Rte_03832] [SWS_Rte_03843]
[SWS_Rte_03849] [SWS_Rte_03851] [SWS_Rte_03862] [SWS_Rte_03970]
[SWS_Rte_04508] [SWS_Rte_05052] [SWS_Rte_05088] [SWS_Rte_05089]
[SWS_Rte_05090] [SWS_Rte_05097] [SWS_Rte_05129] [SWS_Rte_05147]
[SWS_Rte_05177] [SWS_Rte_05184] [SWS_Rte_05191] [SWS_Rte_05503]
[SWS_Rte_06727] [SWS_Rte_06731] [SWS_Rte_06732] [SWS_Rte_06737]
[SWS_Rte_06738] [SWS_Rte_06780] [SWS_Rte_07006] [SWS_Rte_07027]
[SWS_Rte_07085] [SWS_Rte_07101] [SWS_Rte_07135] [SWS_Rte_07170]
[SWS_Rte_07175] [SWS_Rte_07188] [SWS_Rte_07196] [SWS_Rte_07260]
[SWS_Rte_07261] [SWS_Rte_07385] [SWS_Rte_07538] [SWS_Rte_07620]
[SWS_Rte_07621] [SWS_Rte_07654] [SWS_Rte_07662] [SWS_Rte_07694]
[SWS_Rte_07831] [SWS_Rte_07832] [SWS_Rte_07927] [SWS_Rte_08017]
[SWS_Rte_08018] [SWS_Rte_08020] [SWS_Rte_08021] [SWS_Rte_08022]
[SWS_Rte_08023] [SWS_Rte_08043] [SWS_Rte_08044] [SWS_Rte_08045]

1104 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_08064] [SWS_Rte_08072] [SWS_Rte_08403] [SWS_Rte_08404]

[SWS_Rte_08407] [SWS_Rte_08501] [SWS_Rte_08507] [SWS_Rte_08513]
[SWS_Rte_08514] [SWS_Rte_08733] [SWS_Rte_08743]

G.4.3 Deleted Traceables in 4.1.2

[SWS_Rte_02673] [SWS_Rte_05001] [SWS_Rte_05506]

G.4.4 Added Constraints in 4.1.2

Id Heading
[constr_9080] The shortNames of PortInterfaces shall be unique within a software component if it
supports multiple instantiation or indirectAPI attribute is set to true
[constr_9081] Mapping to partition vs the value of VariableAccess.scope

Table G.3: Added Constraints in 4.1.2

G.4.5 Changed Constraints in 4.1.2

Id Heading
[constr_9020] The blocking Rte_SwitchAck API may only be used by the runnable that describes
its usage.

Table G.4: Changed Constraints in 4.1.2

G.4.6 Deleted Constraints in 4.1.2

none

G.5 Changes in Rel. 4.1 Rev. 3 compared to Rel. 4.1 Rev. 2

G.5.1 Added Traceables in 4.1.3

[SWS_Rte_01373] [SWS_Rte_01374] [SWS_Rte_01375] [SWS_Rte_06030]

[SWS_Rte_06031] [SWS_Rte_06032] [SWS_Rte_06551] [SWS_Rte_06552]
[SWS_Rte_06553] [SWS_Rte_06790] [SWS_Rte_06798] [SWS_Rte_06799]
[SWS_Rte_06800] [SWS_Rte_06801] [SWS_Rte_06802] [SWS_Rte_06803]
[SWS_Rte_06804] [SWS_Rte_06805] [SWS_Rte_06806] [SWS_Rte_06807]
[SWS_Rte_06808] [SWS_Rte_06809] [SWS_Rte_06810] [SWS_Rte_07845]
[SWS_Rte_07846] [SWS_Rte_07847] [SWS_Rte_07848] [SWS_Rte_07849]
[SWS_Rte_07850] [SWS_Rte_07851] [SWS_Rte_08077] [SWS_Rte_08078]
[SWS_Rte_08079] [SWS_Rte_08318] [SWS_Rte_08319] [SWS_Rte_08320]
[SWS_Rte_08321] [SWS_Rte_08322] [SWS_Rte_08777] [SWS_Rte_08778]

1105 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_08779] [SWS_Rte_08780] [SWS_Rte_08781] [SWS_Rte_08782]

[SWS_Rte_08783] [SWS_Rte_08784] [SWS_Rte_08785] [SWS_Rte_08786]

G.5.2 Changed Traceables in 4.1.3

[SWS_Rte_01071] [SWS_Rte_01072] [SWS_Rte_01083] [SWS_Rte_01091]

[SWS_Rte_01092] [SWS_Rte_01102] [SWS_Rte_01111] [SWS_Rte_01118]
[SWS_Rte_01120] [SWS_Rte_01123] [SWS_Rte_01206] [SWS_Rte_01252]
[SWS_Rte_01354] [SWS_Rte_02568] [SWS_Rte_02599] [SWS_Rte_02614]
[SWS_Rte_02619] [SWS_Rte_02628] [SWS_Rte_02631] [SWS_Rte_02659]
[SWS_Rte_02667] [SWS_Rte_02725] [SWS_Rte_02740] [SWS_Rte_02741]
[SWS_Rte_02743] [SWS_Rte_02744] [SWS_Rte_02745] [SWS_Rte_03527]
[SWS_Rte_03550] [SWS_Rte_03553] [SWS_Rte_03560] [SWS_Rte_03565]
[SWS_Rte_03741] [SWS_Rte_03744] [SWS_Rte_03800] [SWS_Rte_03813]
[SWS_Rte_03832] [SWS_Rte_03858] [SWS_Rte_03859] [SWS_Rte_03928]
[SWS_Rte_05129] [SWS_Rte_05501] [SWS_Rte_05509] [SWS_Rte_06536]
[SWS_Rte_07026] [SWS_Rte_07038] [SWS_Rte_07039] [SWS_Rte_07057]
[SWS_Rte_07195] [SWS_Rte_07200] [SWS_Rte_07203] [SWS_Rte_07214]
[SWS_Rte_07216] [SWS_Rte_07223] [SWS_Rte_07224] [SWS_Rte_07367]
[SWS_Rte_07394] [SWS_Rte_07554] [SWS_Rte_07640] [SWS_Rte_07680]
[SWS_Rte_07928] [SWS_Rte_08066] [SWS_Rte_08314] [SWS_Rte_08315]
[SWS_Rte_08316] [SWS_Rte_08800]

G.5.3 Deleted Traceables in 4.1.3

[SWS_Rte_03012] [SWS_Rte_03790] [SWS_Rte_04525] [SWS_Rte_05116]

[SWS_Rte_05134]

G.5.4 Added Constraints in 4.1.3

Id Heading
[constr_9082] RtePositionInTask and RteBswPositionInTask values shall be unique in a
particular context

Table G.5: Added Constraints in 4.1.3

G.5.5 Changed Constraints in 4.1.3

none

G.5.6 Deleted Constraints in 4.1.3

1106 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

Id Heading
[constr_9004] Usage of WaitPoints is restricted depending on ExclusiveAreaImplMechanism

Table G.6: Deleted Constraints in 4.1.3

G.6 Changes in Rel. 4.2 Rev. 1 compared to Rel. 4.1 Rev. 3

G.6.1 Added Traceables in 4.2.1

[SWS_Rte_01376] [SWS_Rte_01377] [SWS_Rte_01378] [SWS_Rte_01379]

[SWS_Rte_01380] [SWS_Rte_01381] [SWS_Rte_01382] [SWS_Rte_01383]
[SWS_Rte_01384] [SWS_Rte_01385] [SWS_Rte_01386] [SWS_Rte_01387]
[SWS_Rte_01388] [SWS_Rte_01389] [SWS_Rte_01390] [SWS_Rte_01391]
[SWS_Rte_01392] [SWS_Rte_01393] [SWS_Rte_01394] [SWS_Rte_01395]
[SWS_Rte_01396] [SWS_Rte_01397] [SWS_Rte_01398] [SWS_Rte_01399]
[SWS_Rte_01400] [SWS_Rte_01401] [SWS_Rte_01402] [SWS_Rte_01403]
[SWS_Rte_01404] [SWS_Rte_01405] [SWS_Rte_01406] [SWS_Rte_01407]
[SWS_Rte_01408] [SWS_Rte_01409] [SWS_Rte_01410] [SWS_Rte_01411]
[SWS_Rte_01412] [SWS_Rte_01413] [SWS_Rte_02307] [SWS_Rte_02308]
[SWS_Rte_02309] [SWS_Rte_03863] [SWS_Rte_03864] [SWS_Rte_03865]
[SWS_Rte_03983] [SWS_Rte_03984] [SWS_Rte_03985] [SWS_Rte_03986]
[SWS_Rte_03987] [SWS_Rte_03988] [SWS_Rte_03989] [SWS_Rte_03990]
[SWS_Rte_03991] [SWS_Rte_03992] [SWS_Rte_03993] [SWS_Rte_03994]
[SWS_Rte_03995] [SWS_Rte_03996] [SWS_Rte_03997] [SWS_Rte_06811]
[SWS_Rte_06812] [SWS_Rte_06813] [SWS_Rte_06814] [SWS_Rte_06815]
[SWS_Rte_06816] [SWS_Rte_06817] [SWS_Rte_06818] [SWS_Rte_06819]
[SWS_Rte_06820] [SWS_Rte_06821] [SWS_Rte_06822] [SWS_Rte_06823]
[SWS_Rte_06824] [SWS_Rte_06825] [SWS_Rte_06826] [SWS_Rte_06827]
[SWS_Rte_06828] [SWS_Rte_06829] [SWS_Rte_06830] [SWS_Rte_07413]
[SWS_Rte_08080] [SWS_Rte_08081] [SWS_Rte_08082] [SWS_Rte_08083]
[SWS_Rte_08084] [SWS_Rte_08085] [SWS_Rte_08086] [SWS_Rte_08087]
[SWS_Rte_08088] [SWS_Rte_08089] [SWS_Rte_08090] [SWS_Rte_08091]
[SWS_Rte_08092] [SWS_Rte_08093] [SWS_Rte_08094] [SWS_Rte_08095]
[SWS_Rte_08096] [SWS_Rte_08097] [SWS_Rte_08098] [SWS_Rte_08099]
[SWS_Rte_08100] [SWS_Rte_08101] [SWS_Rte_08102] [SWS_Rte_08103]
[SWS_Rte_08515] [SWS_Rte_08516] [SWS_Rte_08517] [SWS_Rte_08518]
[SWS_Rte_08519] [SWS_Rte_08520] [SWS_Rte_08521] [SWS_Rte_08522]
[SWS_Rte_08523] [SWS_Rte_08524] [SWS_Rte_08525] [SWS_Rte_08526]
[SWS_Rte_08527] [SWS_Rte_08528] [SWS_Rte_08529] [SWS_Rte_08530]
[SWS_Rte_08531] [SWS_Rte_08532] [SWS_Rte_08533] [SWS_Rte_08534]
[SWS_Rte_08535] [SWS_Rte_08536] [SWS_Rte_08537] [SWS_Rte_08538]
[SWS_Rte_08539] [SWS_Rte_08540] [SWS_Rte_08541] [SWS_Rte_08542]
[SWS_Rte_08543] [SWS_Rte_08544] [SWS_Rte_08545] [SWS_Rte_08546]
[SWS_Rte_08547] [SWS_Rte_08548] [SWS_Rte_08549] [SWS_Rte_08550]
[SWS_Rte_08551] [SWS_Rte_08552] [SWS_Rte_08553] [SWS_Rte_08554]
[SWS_Rte_08555] [SWS_Rte_08556] [SWS_Rte_08557] [SWS_Rte_08558]

1107 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_08559] [SWS_Rte_08560] [SWS_Rte_08561] [SWS_Rte_08562]

[SWS_Rte_08563] [SWS_Rte_08564] [SWS_Rte_08565] [SWS_Rte_08566]
[SWS_Rte_08567] [SWS_Rte_08568] [SWS_Rte_08569] [SWS_Rte_08570]
[SWS_Rte_08571] [SWS_Rte_08572] [SWS_Rte_08573] [SWS_Rte_08574]
[SWS_Rte_08575] [SWS_Rte_08576] [SWS_Rte_08577] [SWS_Rte_08578]
[SWS_Rte_08579] [SWS_Rte_08580] [SWS_Rte_08581] [SWS_Rte_08582]
[SWS_Rte_08583] [SWS_Rte_08584] [SWS_Rte_08585] [SWS_Rte_08586]
[SWS_Rte_08587] [SWS_Rte_08588] [SWS_Rte_08589] [SWS_Rte_08590]
[SWS_Rte_08591] [SWS_Rte_08787] [SWS_Rte_08788] [SWS_Rte_08789]
[SWS_Rte_08790] [SWS_Rte_08791] [SWS_Rte_08792] [SWS_Rte_08793]
[SWS_Rte_08794] [SWS_Rte_08795] [SWS_Rte_08796] [SWS_Rte_08797]
[SWS_Rte_08798] [SWS_Rte_08799]

G.6.2 Changed Traceables in 4.2.1

[SWS_Rte_01071] [SWS_Rte_01072] [SWS_Rte_01091] [SWS_Rte_01092]

[SWS_Rte_01102] [SWS_Rte_01111] [SWS_Rte_01118] [SWS_Rte_01119]
[SWS_Rte_01166] [SWS_Rte_01206] [SWS_Rte_01238] [SWS_Rte_01239]
[SWS_Rte_01252] [SWS_Rte_01282] [SWS_Rte_01299] [SWS_Rte_01300]
[SWS_Rte_02599] [SWS_Rte_02600] [SWS_Rte_02607] [SWS_Rte_02608]
[SWS_Rte_02648] [SWS_Rte_02651] [SWS_Rte_02662] [SWS_Rte_02663]
[SWS_Rte_02665] [SWS_Rte_02710] [SWS_Rte_03530] [SWS_Rte_03531]
[SWS_Rte_03532] [SWS_Rte_03594] [SWS_Rte_03600] [SWS_Rte_03754]
[SWS_Rte_03758] [SWS_Rte_03759] [SWS_Rte_03770] [SWS_Rte_03795]
[SWS_Rte_03801] [SWS_Rte_03830] [SWS_Rte_03833] [SWS_Rte_03927]
[SWS_Rte_03928] [SWS_Rte_03929] [SWS_Rte_03952] [SWS_Rte_04505]
[SWS_Rte_04526] [SWS_Rte_04527] [SWS_Rte_05021] [SWS_Rte_05024]
[SWS_Rte_05025] [SWS_Rte_05026] [SWS_Rte_05049] [SWS_Rte_05062]
[SWS_Rte_05081] [SWS_Rte_05088] [SWS_Rte_05126] [SWS_Rte_05127]
[SWS_Rte_05128] [SWS_Rte_06002] [SWS_Rte_06023] [SWS_Rte_06613]
[SWS_Rte_06630] [SWS_Rte_06631] [SWS_Rte_06632] [SWS_Rte_06633]
[SWS_Rte_06634] [SWS_Rte_06635] [SWS_Rte_06637] [SWS_Rte_06734]
[SWS_Rte_06735] [SWS_Rte_06772] [SWS_Rte_06773] [SWS_Rte_06774]
[SWS_Rte_06804] [SWS_Rte_06805] [SWS_Rte_06806] [SWS_Rte_06807]
[SWS_Rte_07032] [SWS_Rte_07114] [SWS_Rte_07144] [SWS_Rte_07163]
[SWS_Rte_07173] [SWS_Rte_07195] [SWS_Rte_07214] [SWS_Rte_07282]
[SWS_Rte_07317] [SWS_Rte_07355] [SWS_Rte_07356] [SWS_Rte_07394]
[SWS_Rte_07554] [SWS_Rte_07670] [SWS_Rte_07675] [SWS_Rte_07676]
[SWS_Rte_07682] [SWS_Rte_07683] [SWS_Rte_07684] [SWS_Rte_07685]
[SWS_Rte_07693] [SWS_Rte_07810] [SWS_Rte_07813] [SWS_Rte_07814]
[SWS_Rte_07846] [SWS_Rte_07847] [SWS_Rte_07848] [SWS_Rte_07849]
[SWS_Rte_07920] [SWS_Rte_07927] [SWS_Rte_07928] [SWS_Rte_08016]
[SWS_Rte_08022] [SWS_Rte_08023] [SWS_Rte_08038] [SWS_Rte_08045]
[SWS_Rte_08061] [SWS_Rte_08062] [SWS_Rte_08074] [SWS_Rte_08075]
[SWS_Rte_08076] [SWS_Rte_08301] [SWS_Rte_08310] [SWS_Rte_08414]

1108 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_08415] [SWS_Rte_08711] [SWS_Rte_08712] [SWS_Rte_08713]

[SWS_Rte_08725] [SWS_Rte_08726] [SWS_Rte_08727] [SWS_Rte_08728]
[SWS_Rte_08729] [SWS_Rte_08800]

G.6.3 Deleted Traceables in 4.2.1

[SWS_Rte_02724] [SWS_Rte_04506] [SWS_Rte_04507] [SWS_Rte_07136]

[SWS_Rte_08702] [SWS_Rte_08704] [SWS_Rte_08706] [SWS_Rte_08708]
[SWS_Rte_08710] [SWS_Rte_08730] [SWS_Rte_08761] [SWS_Rte_08762]

G.6.4 Added Constraints in 4.2.1

Id Heading
[constr_9083] Rte_IRead API may only be used by the runnable that describe its usage
[constr_9084] Rte_IWrite API may only be used by the runnable that describe its usage
[constr_9085] Rte_IWriteRef API may only be used by the runnable that describe its usage
[constr_9086] Rte_IInvalidate API may only be used by the runnable that is describing an write
access to the data
[constr_9087] Rte_IrvIRead API may only be used by the runnable that describe its usage
[constr_9088] Rte_IrvIWrite API may only be used by the runnable that describe its usage
[constr_9089] Rte_IrvRead API may only be used by the runnable that describe its usage
[constr_9090] Rte_IrvWrite API may only be used by the runnable that describe its usage
[constr_9091] RteSwNvRamMappingRef and RteSwNvBlockDescriptorRef are excluding
each other

Table G.7: Added Constraints in 4.2.1

G.6.5 Changed Constraints in 4.2.1

Id Heading
[constr_9011] NvMBlockDescriptor related to a RAM Block of a NvBlockSwComponentType
shall use NvmBlockUseSyncMechanism
[constr_9027] Rte_IStatus API shall only be used by a RunnableEntity describing an read
access to the related data

Table G.8: Changed Constraints in 4.2.1

G.6.6 Deleted Constraints in 4.2.1

Id Heading
[constr_9044] Union Implementation Data Type shall include at least two elements
[constr_9065] Signature of Serializer
[constr_9066] A BswModuleEntry representing a serializer shall comply to a serializers signature
[constr_9068] Return value for successful serialization
[constr_9069] Return value for a serialization error
[constr_9071] Signature of Deserializer

1109 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[constr_9072] A BswModuleEntry representing a deserializer shall comply to a deserializers signa-

ture
[constr_9073] Return value for successful deserialization
[constr_9074] Return value for a deserialization error

Table G.9: Deleted Constraints in 4.2.1

G.7 Changes in Rel. 4.2 Rev. 2 compared to Rel. 4.2 Rev. 1

G.7.1 Added Traceables in 4.2.2

[SWS_Rte_03866] [SWS_Rte_03998] [SWS_Rte_05300] [SWS_Rte_05301]

[SWS_Rte_06200] [SWS_Rte_06201] [SWS_Rte_06203] [SWS_Rte_06204]
[SWS_Rte_06205] [SWS_Rte_06206] [SWS_Rte_06207] [SWS_Rte_06208]
[SWS_Rte_06209] [SWS_Rte_06831] [SWS_Rte_07414] [SWS_Rte_07415]
[SWS_Rte_07416] [SWS_Rte_07417] [SWS_Rte_07418] [SWS_Rte_07419]
[SWS_Rte_07420] [SWS_Rte_08104] [SWS_Rte_08105] [SWS_Rte_08106]
[SWS_Rte_08107] [SWS_Rte_08108] [SWS_Rte_08109] [SWS_Rte_08110]
[SWS_Rte_08417] [SWS_Rte_08418] [SWS_Rte_08419] [SWS_Rte_08592]
[SWS_Rte_08593] [SWS_Rte_08594] [SWS_Rte_08595] [SWS_Rte_08596]
[SWS_Rte_08597] [SWS_Rte_08598] [SWS_Rte_08599]

G.7.2 Changed Traceables in 4.2.2

[SWS_Rte_01156] [SWS_Rte_01366] [SWS_Rte_01403] [SWS_Rte_02250]

[SWS_Rte_02254] [SWS_Rte_02572] [SWS_Rte_02604] [SWS_Rte_02703]
[SWS_Rte_03724] [SWS_Rte_03793] [SWS_Rte_03832] [SWS_Rte_05094]
[SWS_Rte_05095] [SWS_Rte_05096] [SWS_Rte_05097] [SWS_Rte_05098]
[SWS_Rte_05105] [SWS_Rte_05500] [SWS_Rte_06545] [SWS_Rte_06611]
[SWS_Rte_06630] [SWS_Rte_06631] [SWS_Rte_06799] [SWS_Rte_06811]
[SWS_Rte_06818] [SWS_Rte_06829] [SWS_Rte_07038] [SWS_Rte_07089]
[SWS_Rte_07200] [SWS_Rte_07207] [SWS_Rte_07310] [SWS_Rte_07315]
[SWS_Rte_07408] [SWS_Rte_07409] [SWS_Rte_07413] [SWS_Rte_07623]
[SWS_Rte_07627] [SWS_Rte_07676] [SWS_Rte_07686] [SWS_Rte_07817]
[SWS_Rte_08064] [SWS_Rte_08409] [SWS_Rte_08411] [SWS_Rte_08412]
[SWS_Rte_08515] [SWS_Rte_08516] [SWS_Rte_08518] [SWS_Rte_08523]
[SWS_Rte_08526] [SWS_Rte_08533] [SWS_Rte_08558] [SWS_Rte_08711]
[SWS_Rte_08712] [SWS_Rte_08732] [SWS_Rte_08794] [SWS_Rte_08795]
[SWS_Rte_08800]

G.7.3 Deleted Traceables in 4.2.2

[SWS_Rte_01231] [SWS_Rte_01276] [SWS_Rte_02251] [SWS_Rte_05022]

[SWS_Rte_05063] [SWS_Rte_08713]

1110 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

G.7.4 Added Constraints in 4.2.2

Id Heading
[constr_9092] Rte_IrvIWriteRef API may only be used by the runnable that describe its usage
[constr_9093] Rte_IrvIWriteRef may not return values written in previous executions

Table G.10: Added Constraints in 4.2.2

G.7.5 Changed Constraints in 4.2.2

none

G.7.6 Deleted Constraints in 4.2.2

none

G.8 Changes in Rel. 4.3 Rev. 0 compared to Rel. 4.2 Rev. 2

G.8.1 Added Traceables in 4.3.0

[SWS_Rte_03867] [SWS_Rte_03868] [SWS_Rte_03999] [SWS_Rte_04528]

[SWS_Rte_04529] [SWS_Rte_04530] [SWS_Rte_04531] [SWS_Rte_04532]
[SWS_Rte_04533] [SWS_Rte_04534] [SWS_Rte_04535] [SWS_Rte_04536]
[SWS_Rte_04537] [SWS_Rte_04538] [SWS_Rte_04539] [SWS_Rte_04540]
[SWS_Rte_04541] [SWS_Rte_04542] [SWS_Rte_04543] [SWS_Rte_04544]
[SWS_Rte_04545] [SWS_Rte_04546] [SWS_Rte_04547] [SWS_Rte_04548]
[SWS_Rte_04549] [SWS_Rte_04550] [SWS_Rte_04551] [SWS_Rte_06033]
[SWS_Rte_06034] [SWS_Rte_06035] [SWS_Rte_06036] [SWS_Rte_06037]
[SWS_Rte_06038] [SWS_Rte_06039] [SWS_Rte_06040] [SWS_Rte_06041]
[SWS_Rte_06042] [SWS_Rte_06043] [SWS_Rte_06044] [SWS_Rte_06045]
[SWS_Rte_06046] [SWS_Rte_06047] [SWS_Rte_06048] [SWS_Rte_06049]
[SWS_Rte_06050] [SWS_Rte_06051] [SWS_Rte_06052] [SWS_Rte_06053]
[SWS_Rte_06054] [SWS_Rte_06055] [SWS_Rte_06056] [SWS_Rte_06057]
[SWS_Rte_06058] [SWS_Rte_06059] [SWS_Rte_06060] [SWS_Rte_06061]
[SWS_Rte_06064] [SWS_Rte_06065] [SWS_Rte_06066] [SWS_Rte_06067]
[SWS_Rte_06068] [SWS_Rte_06069] [SWS_Rte_06073] [SWS_Rte_06074]
[SWS_Rte_06075] [SWS_Rte_06076] [SWS_Rte_06077] [SWS_Rte_06079]
[SWS_Rte_06080] [SWS_Rte_06081] [SWS_Rte_06082] [SWS_Rte_06083]
[SWS_Rte_06084] [SWS_Rte_06085] [SWS_Rte_06086] [SWS_Rte_06087]
[SWS_Rte_06088] [SWS_Rte_06089] [SWS_Rte_06090] [SWS_Rte_06091]
[SWS_Rte_06092] [SWS_Rte_06093] [SWS_Rte_06094] [SWS_Rte_06095]
[SWS_Rte_06096] [SWS_Rte_06097] [SWS_Rte_06098] [SWS_Rte_06099]
[SWS_Rte_06100] [SWS_Rte_06101] [SWS_Rte_06102] [SWS_Rte_06103]
[SWS_Rte_06104] [SWS_Rte_06105] [SWS_Rte_06106] [SWS_Rte_06107]

1111 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

[SWS_Rte_06108] [SWS_Rte_06109] [SWS_Rte_06110] [SWS_Rte_06111]

[SWS_Rte_06112] [SWS_Rte_06113] [SWS_Rte_06114] [SWS_Rte_06115]
[SWS_Rte_06120] [SWS_Rte_06210] [SWS_Rte_06211] [SWS_Rte_06212]
[SWS_Rte_08111] [SWS_Rte_08420] [SWS_Rte_08421] [SWS_Rte_08422]
[SWS_Rte_08423] [SWS_Rte_08424] [SWS_Rte_08603] [SWS_Rte_08604]
[SWS_Rte_08605]

G.8.2 Changed Traceables in 4.3.0

[SWS_Rte_01072] [SWS_Rte_01092] [SWS_Rte_01120] [SWS_Rte_01123]

[SWS_Rte_01150] [SWS_Rte_01168] [SWS_Rte_01238] [SWS_Rte_01239]
[SWS_Rte_01240] [SWS_Rte_01241] [SWS_Rte_01319] [SWS_Rte_01342]
[SWS_Rte_01354] [SWS_Rte_01408] [SWS_Rte_01411] [SWS_Rte_02579]
[SWS_Rte_02599] [SWS_Rte_02614] [SWS_Rte_02619] [SWS_Rte_02653]
[SWS_Rte_02679] [SWS_Rte_03602] [SWS_Rte_03603] [SWS_Rte_03712]
[SWS_Rte_03714] [SWS_Rte_03731] [SWS_Rte_03739] [SWS_Rte_03741]
[SWS_Rte_03744] [SWS_Rte_03799] [SWS_Rte_03810] [SWS_Rte_03827]
[SWS_Rte_03828] [SWS_Rte_03832] [SWS_Rte_03984] [SWS_Rte_04504]
[SWS_Rte_05509] [SWS_Rte_06533] [SWS_Rte_06612] [SWS_Rte_06620]
[SWS_Rte_06638] [SWS_Rte_06768] [SWS_Rte_06769] [SWS_Rte_06770]
[SWS_Rte_06813] [SWS_Rte_07053] [SWS_Rte_07100] [SWS_Rte_07138]
[SWS_Rte_07170] [SWS_Rte_07250] [SWS_Rte_07253] [SWS_Rte_07270]
[SWS_Rte_07386] [SWS_Rte_07411] [SWS_Rte_07556] [SWS_Rte_07574]
[SWS_Rte_07675] [SWS_Rte_07683] [SWS_Rte_07810] [SWS_Rte_07811]
[SWS_Rte_07928] [SWS_Rte_08080] [SWS_Rte_08081] [SWS_Rte_08090]
[SWS_Rte_08312] [SWS_Rte_08517] [SWS_Rte_08524] [SWS_Rte_08538]
[SWS_Rte_08541] [SWS_Rte_08700] [SWS_Rte_08733] [SWS_Rte_08736]
[SWS_Rte_08740] [SWS_Rte_08743] [SWS_Rte_08744] [SWS_Rte_08795]
[SWS_Rte_08801]

G.8.3 Deleted Traceables in 4.3.0

[SWS_Rte_02627] [SWS_Rte_03503] [SWS_Rte_03773] [SWS_Rte_05094]

[SWS_Rte_05095] [SWS_Rte_05096] [SWS_Rte_05097] [SWS_Rte_05098]
[SWS_Rte_05103] [SWS_Rte_05104] [SWS_Rte_05105] [SWS_Rte_06544]
[SWS_Rte_06545] [SWS_Rte_06630] [SWS_Rte_07283] [SWS_Rte_07292]
[SWS_Rte_07357] [SWS_Rte_07813] [SWS_Rte_07814] [SWS_Rte_08106]
[SWS_Rte_08701] [SWS_Rte_08759] [SWS_Rte_08781]

G.8.4 Renamed Constraints in 4.3.0

constr_9081 [SWS_Rte_CONSTR_09081] Mapping to partition vs the value of VariableAc-

cess.scope

1112 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

constr_9010 [SWS_Rte_CONSTR_09010] Worst case execution time shall be less than the
GCD
constr_9012 [SWS_Rte_CONSTR_09012] Category 1 interrupts shall not access the RTE.
constr_9011 [SWS_Rte_CONSTR_09011] NvMBlockDescriptor related to a RAM Block of
a NvBlockSwComponentType shall use NvM-
BlockDescriptor.NvmBlockUseSyncMechanism
constr_9001 [SWS_Rte_CONSTR_09001] Whole DataPrototypeGroup in role Consisten-
cyNeeds.dpgRequiresCoherency shall be prop-
agated coherently
constr_9002 [SWS_Rte_CONSTR_09002] The whole DataPrototypeGroup shall be read
stable for the whole RunnableEntityGroup in the
role ConsistencyNeeds.regRequiresStability
constr_9013 [SWS_Rte_CONSTR_09013] Exactly one mode or one mode transition shall
be active
constr_9014 [SWS_Rte_CONSTR_09014] ModeSwitchPoint(s) and managedMode-
Group(s) are mutually exclusive for synchronized
ModeDeclarationGroupPrototypes
constr_9007 [SWS_Rte_CONSTR_09007] issuedTrigger and BswTriggerDirectImplementa-
tion are mutually exclusive
constr_9008 [SWS_Rte_CONSTR_09008] The same Trigger in a trigger sink must not be
connected to multiple trigger sources
constr_9009 [SWS_Rte_CONSTR_09009] Synchronized Trigger shall not be referenced by
more than one type of access method
constr_9042 [SWS_Rte_CONSTR_09042] Array Implementation Data Type needs at least
one element
constr_9043 [SWS_Rte_CONSTR_09043] Structure Implementation Data Type needs at
least one element
constr_9080 [SWS_Rte_CONSTR_09080] The shortNames of PortInterfaces shall be
unique within a software component if it
supports multiple instantiation or PortAPIOp-
tion.indirectAPI attribute is set to true
constr_9015 [SWS_Rte_CONSTR_09015] Rte_Write API may only be used by the runnable
that describe its usage
constr_9016 [SWS_Rte_CONSTR_09016] Rte_Send API may only be used by the runnable
that describes its usage
constr_9017 [SWS_Rte_CONSTR_09017] Rte_Switch API may only be used by the runn-
able that describes its usage
constr_9018 [SWS_Rte_CONSTR_09018] Rte_Invalidate API may only be used by the
runnable that describe its usage
constr_9019 [SWS_Rte_CONSTR_09019] Rte_Feedback API may only be used by the
runnable that describe its usage
constr_9020 [SWS_Rte_CONSTR_09020] The blocking Rte_SwitchAck API may only be
used by the runnable that describes its usage.
constr_9021 [SWS_Rte_CONSTR_09021] Rte_Read API may only be used by the runnable
that describe its usage
constr_9022 [SWS_Rte_CONSTR_09022] Rte_DRead API may only be used by the runn-
able that describe its usage
constr_9023 [SWS_Rte_CONSTR_09023] Rte_Receive API may only be used by the runn-
able that describe its usage
constr_9024 [SWS_Rte_CONSTR_09024] Rte_Call API may only be used by the runnable
that describe its usage
constr_9025 [SWS_Rte_CONSTR_09025] Blocking Rte_Result API may only be used by
the runnable that describe the WaitPoint
constr_9083 [SWS_Rte_CONSTR_09083] Rte_IRead API may only be used by the runn-
able that describe its usage

1113 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

constr_9084 [SWS_Rte_CONSTR_09084] Rte_IWrite API may only be used by the runnable

that describe its usage
constr_9085 [SWS_Rte_CONSTR_09085] Rte_IWriteRef API may only be used by the
runnable that describe its usage
constr_9026 [SWS_Rte_CONSTR_09026] Rte_IWriteRef may not return values written in
previous executions
constr_9086 [SWS_Rte_CONSTR_09086] Rte_IInvalidate API may only be used by the
runnable that is describing an write access to the
data
constr_9027 [SWS_Rte_CONSTR_09027] Rte_IStatus API shall only be used by a
RunnableEntity describing an read access to the
related data
constr_9087 [SWS_Rte_CONSTR_09087] Rte_IrvIRead API may only be used by the runn-
able that describe its usage
constr_9088 [SWS_Rte_CONSTR_09088] Rte_IrvIWrite API may only be used by the runn-
able that describe its usage
constr_9092 [SWS_Rte_CONSTR_09092] Rte_IrvIWriteRef API may only be used by the
runnable that describe its usage
constr_9093 [SWS_Rte_CONSTR_09093] Rte_IrvIWriteRef may not return values written in
previous executions
constr_9089 [SWS_Rte_CONSTR_09089] Rte_IrvRead API may only be used by the runn-
able that describe its usage
constr_9090 [SWS_Rte_CONSTR_09090] Rte_IrvWrite API may only be used by the runn-
able that describe its usage
constr_9028 [SWS_Rte_CONSTR_09028] Rte_Enter and Rte_Exit API may only be used
by runnables describing its usage
constr_9029 [SWS_Rte_CONSTR_09029] Nested call of Rte_Enter and Rte_Exit is re-
stricted
constr_9030 [SWS_Rte_CONSTR_09030] Rte_Mode API may only be used by the runnable
that describe its usage
constr_9031 [SWS_Rte_CONSTR_09031] Rte_Mode API may only be used by the runnable
that describe its usage
constr_9032 [SWS_Rte_CONSTR_09032] Rte_Trigger API may only be used by the runn-
able that describe its usage
constr_9033 [SWS_Rte_CONSTR_09033] Rte_IrTrigger API may only be used by the runn-
able that describe its usage
constr_9000 [SWS_Rte_CONSTR_09000] Rte_IFeedback API may only be used by the
RunnableEntitys that describe its usage
constr_9034 [SWS_Rte_CONSTR_09034] Rte_IsUpdated API may only be used by the
runnable that describe the access to the corre-
sponding data
constr_9045 [SWS_Rte_CONSTR_09045] The upper two bits of the of the server return
value are reserved
constr_9035 [SWS_Rte_CONSTR_09035] Rte_Start shall be called only once
constr_9036 [SWS_Rte_CONSTR_09036] Rte_Start API may only be used after call of
SchM_Init
constr_9037 [SWS_Rte_CONSTR_09037] Rte_Start API shall be called on every core
constr_9038 [SWS_Rte_CONSTR_09038] Rte_Stop shall be called before BSW shutdown
constr_9039 [SWS_Rte_CONSTR_09039] Rte_PartitionTerminated shall be called only
once
constr_9040 [SWS_Rte_CONSTR_09040] Rte_PartitionRestarting shall be called only onc
constr_9041 [SWS_Rte_CONSTR_09041] Rte_RestartPartition shall be called from
RestartTask
constr_9060 [SWS_Rte_CONSTR_09060] Rte_Init API may only be used after call of
Rte_Start

1114 of 1116 Document ID 084: AUTOSAR_SWS_RTE

AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

constr_9061 [SWS_Rte_CONSTR_09061] Rte_StartTiming API may only be used after call

of Rte_Start
constr_9059 [SWS_Rte_CONSTR_09059] Usage of Basic Software Scheduler API prereq-
uisites the include of the Module Interlink Header
File
constr_9046 [SWS_Rte_CONSTR_09046] SchM_Enter and SchM_Exit API may only be
used by BswModuleEntitys describing its usage
constr_9047 [SWS_Rte_CONSTR_09047] Nested call of SchM_Enter and SchM_Exit API
is restricted
constr_9048 [SWS_Rte_CONSTR_09048] SchM_Exit API may only be used by BswMod-
uleEntitys that describe its usage
constr_9079 [SWS_Rte_CONSTR_09079] SchM_Call API may only be used by the
BswModuleEntity that describe its usage
constr_9076 [SWS_Rte_CONSTR_09076] SchM_Result API may only be used by the
BswModuleEntity that describe its usage
constr_9077 [SWS_Rte_CONSTR_09077] SchM_Send API may only be used by the
BswModuleEntity that describes its usage
constr_9078 [SWS_Rte_CONSTR_09078] SchM_Receive API may only be used by the
BswModuleEntity that describes its usage
constr_9049 [SWS_Rte_CONSTR_09049] SchM_Switch API may only be used by BswMod-
uleEntitys that describe its usage
constr_9050 [SWS_Rte_CONSTR_09050] SchM_Mode API may only be used by BswMod-
uleEntitys that describe its usage
constr_9051 [SWS_Rte_CONSTR_09051] SchM_Mode API may only be used by BswMod-
uleEntitys that describe its usage
constr_9052 [SWS_Rte_CONSTR_09052] SchM_SwitchAck API may only be used by
BswModuleEntitys that describe its usage
constr_9053 [SWS_Rte_CONSTR_09053] SchM_Trigger API may only be used by the
BswModuleEntitys that describe its usage
constr_9054 [SWS_Rte_CONSTR_09054] SchM_ActMainFunction API may only be used
by the BswModuleEntitys that describe its usage
constr_9058 [SWS_Rte_CONSTR_09058] BswSchedulableEntity is not allowed to have ser-
vice arguments or return value
constr_9055 [SWS_Rte_CONSTR_09055] SchM_Init, SchM_Start, SchM_StartTiming shall
be called only once
constr_9057 [SWS_Rte_CONSTR_09057] SchM_Deinit shall be called before shut down of
BSW
constr_9056 [SWS_Rte_CONSTR_09056] SchM_Deinit API may only be used after the was
RTE finalized
constr_9082 [SWS_Rte_CONSTR_09082] RteEventToTaskMapping.RtePositionInTask
and RteBswEventToTaskMap-
ping.RteBswPositionInTask values shall be
unique in a particular context
constr_3510 [SWS_Rte_CONSTR_03510] Exclude usage of RteExclusiveAreaImplMecha-
nism.OS_SPINLOCK in RteExclusiveAreaImple-
mentation
constr_9091 [SWS_Rte_CONSTR_09091] RteNvRamAllocation.RteSwNvRamMappingRef
and RteNvRamAlloca-
tion.RteSwNvBlockDescriptorRef are excluding
each other
constr_9005 [SWS_Rte_CONSTR_09005] The references RteInternalTriggerCon-
fig.RteSwcTriggerSourceRef has to be
consistent with the RteSwComponentIn-
stance.RteSoftwareComponentInstanceRef

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AUTOSAR CONFIDENTIAL
 Specification of RTE
AUTOSAR CP Release 4.3.0

constr_9006 [SWS_Rte_CONSTR_09006] The references RteBswInternalTrigger-

Config.RteBswTriggerSourceRef has to
be consistent with the RteBswModuleIn-
stance.RteBswImplementationRef
constr_9063 [SWS_Rte_CONSTR_09063] Restricted kinds of RTEEvents which may
mapped to RteInitializationRunnableBatch con-
tainers
constr_9064 [SWS_Rte_CONSTR_09064] A single RteInitializationRunnableBatch con-
tainer may not handle RTEEvents of different
partitions
constr_9062 [SWS_Rte_CONSTR_09062] Entire mapping of on-entry Runnable Entities for
ModeDeclarationGroup.initialMode to RteInitial-
izationRunnableBatch containers

Table G.11: Renamed Constraints in 4.3.0

G.8.5 Added Constraints in 4.3.0

none

G.8.6 Changed Constraints in 4.3.0

none

G.8.7 Deleted Constraints in 4.3.0

none

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AUTOSAR CONFIDENTIAL