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Debugging 8051 assembly code requires a systematic approach to identify and resolve errors, utilizing techniques such as breakpoints and single-stepping. Key principles include reproducibility, understanding the code, and thorough documentation. Effective debugging tools, like Keil's MON51, help inspect the microcontroller's state and trace program execution to locate errors.

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RAVITEJA REDDY GOGULADINNE
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12 views2 pages

Sunny 2

Debugging 8051 assembly code requires a systematic approach to identify and resolve errors, utilizing techniques such as breakpoints and single-stepping. Key principles include reproducibility, understanding the code, and thorough documentation. Effective debugging tools, like Keil's MON51, help inspect the microcontroller's state and trace program execution to locate errors.

Uploaded by

RAVITEJA REDDY GOGULADINNE
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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describe the principles and techniques of debugging in 8051 assembly language

Debugging 8051 assembly code involves systematically identifying and resolving errors, using
techniques like breakpoints, single-stepping, and observing memory and register contents
with tools like debuggers and serial communication.

Here's a breakdown of the principles and techniques:

Principles of Debugging:

• Systematic Approach:

Debugging is not a random process; it requires a methodical approach to isolate and fix
issues.

• Reproducibility:

Ensure you can consistently reproduce the error to analyze the root cause effectively.

• Divide and Conquer:

Break down complex problems into smaller, manageable parts to simplify the debugging
process.

• Understanding the Code:

Thoroughly understand the code's logic and how it interacts with the 8051's hardware.

• Documentation:

Keep detailed notes about the errors, the steps taken to reproduce them, and the fixes
implemented.

Techniques for Debugging 8051 Assembly Code:

• Breakpoints:

• Purpose: Pause the program's execution at specific points to inspect the state
of the microcontroller.

• Implementation: Use debugger tools or software like Keil's MON51 to set


breakpoints at desired locations in the code.

• Benefits: Allows you to observe the values of registers, memory locations,


and program counter before and after the breakpoint.

• Single-Stepping:

• Purpose: Execute the code instruction by instruction to trace the program's


flow and identify the source of errors.
• Implementation: Use debugger tools to step through the code, line by line.

• Benefits: Provides a detailed view of the program's execution, enabling you to


pinpoint the exact location of the error.

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