INSTITUTO POLITÉCNICO NACIONAL
ESCUELA SUPERIOR DE INGENIERÍA MECÁNICA Y ELÉCTRICA
UNIDAD ZACATENCO
INGENIERÍA EN COMUNICACIONES Y ELÉCTRONICA
Microprocesadores.
Práctica: Práctica LCD
PROFESOR:
VÁZQUEZ ZARATE AGUSTÍN.
Grupo: 6CV5
Integrantes:
Objetivo:
Aprender a utilizar el display 16x2 en el pic 18F4550
Desarrollo:
;******************************************************************************
; This file is a basic template for assembly code for a PIC18F4550. Copy
; this file into your project directory and modify or add to it as needed. *
; The PIC18FXXXX architecture allows two interrupt configurations. This
; template code is written for priority interrupt levels and the IPEN bit
; in the RCON register must be set to enable priority levels. If IPEN is
; left in its default zero state, only the interrupt vector at 0x008 will
; be used and the WREG_TEMP, BSR_TEMP and STATUS_TEMP variables will not
; be needed.
; Refer to the MPASM User's Guide for additional information on the
; features of the assembler.
; Refer to the PIC18FXX50/XX55 Data Sheet for additional
; information on the architecture and instruction set.
;******************************************************************************
; Filename: PlantillaASM *
; Date: 12/01/11 *
; File Version: 1.0 *
; *
; Author: Ing. Alejandro Vicente Lugo Silva *
; Company: Acad. Computación ICE - ESIME Zac. *
; *
;******************************************************************************
; *
; Files required: P18F4550.INC *
; *
;******************************************************************************
LIST P=18F4550, F=INHX32 ;directive to define processor
#include <P18F4550.INC> ;processor specific variable definitions
;******************************************************************************
;Configuration bits
CONFIG PLLDIV = 5 ;(20 MHz crystal on PICDEM FS USB board)
CONFIG CPUDIV = OSC1_PLL2
CONFIG USBDIV = 2 ;Clock source from 96MHz PLL/2
CONFIG FOSC = HSPLL_HS
CONFIG FCMEN = OFF
CONFIG IESO = OFF
CONFIG PWRT = OFF
CONFIG BOR = ON
CONFIG BORV =3
CONFIG VREGEN = ON ;USB Voltage Regulator
config WDT = OFF
config WDTPS = 32768
config MCLRE = ON
config LPT1OSC = OFF
config PBADEN = OFF ;NOTE: modifying this value here won't have an effect
;on the application. See the top of the
main() function.
;By default the RB4 I/O pin is used to
detect if the
;firmware should enter the bootloader or
the main application
;firmware after a reset. In order to do
this, it needs to
;configure RB4 as a digital input, thereby
changing it from
;the reset value according to this
configuration bit.
config CCP2MX = ON
config STVREN = ON
config LVP = OFF
config ICPRT = OFF ; Dedicated In-Circuit Debug/Programming
config XINST = OFF ; Extended Instruction Set
config CP0 = OFF
config CP1 = OFF
config CP2 = OFF
config CP3 = OFF
config CPB = OFF
config CPD = OFF
config WRT0 = OFF
config WRT1 = OFF
config WRT2 = OFF
config WRT3 = OFF
config WRTB = OFF ; Boot Block Write Protection
config WRTC = OFF
config WRTD = OFF
config EBTR0 = OFF
config EBTR1 = OFF
config EBTR2 = OFF
config EBTR3 = OFF
config EBTRB = OFF
;******************************************************************************
;Variable definitions
; These variables are only needed if low priority interrupts are used.
; More variables may be needed to store other special function registers used
; in the interrupt routines.
;******************************************************************************
;Reset vector
; This code will start executing when a reset occurs.
RESET_VECTOR ORG 0
goto Main ;go to start of main code
;******************************************************************************
;******************************************************************************
;Start of main program
; The main program code is placed here.
ORG 0x1000
CALL CONFIGPUERTOS
Main ; *** main code goes here **
CALL Inicializa_LCD ;inicializamos lcd
MOVLW CLEAR ;INSTRUCCION PARA LLEGAR AL LCD
MOVWF DATO ;MOVEMOS AL PARAMETRO DATO
CALL Comando_LCD
MOVLW DDRAM_L1 ; INSTRUCCION PARA MOVERSE A LA LINEA 1
ADDLW .6 ;SUMAMOS 6 PARA DESPLAZARNOS 6 CARACTERES Y CENTRAR EL
TEXTO
MOVWF DATO ;MOVEMOS AL PARAMETRO DATO
CALL Comando_LCD
MOVLW 'H'
MOVWF DATO
CALL Dato_LCD
MOVLW 'O'
MOVWF DATO
CALL Dato_LCD
MOVLW 'L'
MOVWF DATO
CALL Dato_LCD
MOVLW 'A'
MOVWF DATO
CALL Dato_LCD
CLRF PORTD ;LIMPIAMOS PUERTO D
GOTO Main
; end of main
;******************************************************************************
; Start of subrutines
CONFIGPUERTOS
CLRF WREG
MOVLW H'0F'
MOVWF ADCON1
CLRF TRISD
CLRF PORTD
#include <H:\lcd.INC>
;******************************************************************************
;******************************************************************************
;End of program
END
Diagrama del circuito:
Conclusiones:
INSTITUTO POLITÉCNICO NACIONAL
ESCUELA SUPERIOR DE INGENIERÍA MECÁNICA Y ELÉCTRICA
UNIDAD ZACATENCO
INGENIERÍA EN COMUNICACIONES Y ELÉCTRONICA
Microprocesadores.
Práctica: Push Botton
Profesor:
Vázquez Zarate Agustín.
Grupo: 6CV5
Integrantes
Objetivo:
Aprender a utilizar el interruptor por medio de un programa en lenguaje ensamblador para el
PIC18F4550 para una función determinada.
Desarrollo:
;******************************************************************************
; This file is a basic template for assembly code for a PIC18F4550. Copy *
; this file into your project directory and modify or add to it as needed. *
; *
; The PIC18FXXXX architecture allows two interrupt configurations. This *
; template code is written for priority interrupt levels and the IPEN bit *
; in the RCON register must be set to enable priority levels. If IPEN is *
; left in its default zero state, only the interrupt vector at 0x008 will *
; be used and the WREG_TEMP, BSR_TEMP and STATUS_TEMP variables will not *
; be needed. *
; *
; Refer to the MPASM User's Guide for additional information on the *
; features of the assembler. *
; *
; Refer to the PIC18FXX50/XX55 Data Sheet for additional *
; information on the architecture and instruction set. *
; *
;******************************************************************************
; *
; Filename: PlantillaASM *
; Date: 12/01/11 *
; File Version: 1.0 *
; *
; Author: Ing. Alejandro Vicente Lugo Silva *
; Company: Acad. Computación ICE - ESIME Zac. *
; *
;******************************************************************************
; *
; Files required: P18F4550.INC *
; *
;******************************************************************************
LIST P=18F4550, F=INHX32 ;directive to define processor
#include <P18F4550.INC> ;processor specific variable definitions
;******************************************************************************
;Configuration bits
CONFIG PLLDIV = 5 ;(20 MHz crystal on PICDEM FS USB board)
CONFIG CPUDIV = OSC1_PLL2
CONFIG USBDIV = 2 ;Clock source from 96MHz PLL/2
CONFIG FOSC = HSPLL_HS
CONFIG FCMEN = OFF
CONFIG IESO = OFF
CONFIG PWRT = OFF
CONFIG BOR = ON
CONFIG BORV =3
CONFIG VREGEN = ON ;USB Voltage Regulator
config WDT = OFF
config WDTPS = 32768
config MCLRE = ON
config LPT1OSC = OFF
config PBADEN = OFF ;NOTE: modifying this value here won't have an effect
;on the application. See the top of the
main() function.
;By default the RB4 I/O pin is used to
detect if the
;firmware should enter the bootloader or
the main application
;firmware after a reset. In order to do
this, it needs to
;configure RB4 as a digital input, thereby
changing it from
;the reset value according to this
configuration bit.
config CCP2MX = ON
config STVREN = ON
config LVP = OFF
config ICPRT = OFF ; Dedicated In-Circuit Debug/Programming
config XINST = OFF ; Extended Instruction Set
config CP0 = OFF
config CP1 = OFF
config CP2 = OFF
config CP3 = OFF
config CPB = OFF
config CPD = OFF
config WRT0 = OFF
config WRT1 = OFF
config WRT2 = OFF
config WRT3 = OFF
config WRTB = OFF ; Boot Block Write Protection
config WRTC = OFF
config WRTD = OFF
config EBTR0 = OFF
config EBTR1 = OFF
config EBTR2 = OFF
config EBTR3 = OFF
config EBTRB = OFF
;******************************************************************************
;Variable definitions
; These variables are only needed if low priority interrupts are used.
; More variables may be needed to store other special function registers used
; in the interrupt routines.
;******************************************************************************
;Reset vector
; This code will start executing when a reset occurs.
RESET_VECTOR ORG 0
goto Main ;go to start of main code
;******************************************************************************
;******************************************************************************
;Start of main program
; The main program code is placed here.
ORG 0x1000
Main ; *** main code goes here **
call configptos
call configtimer0
consulta:
btfsc INTCON,TMR0IF
call nuevoretardo
goto consulta
; end of main
;******************************************************************************
; Start of subrutines
;******************************************************************************
configptos ;subrutina define lineas de E/S
movlw 0x0F
movwf ADCON1
clrf TRISA
movlw 0x55
movwf LATA
return
configtimer0 ;subrutina que configura el modo de operaciòn timer0
bcf INTCON,TMR0IF
movlw 0X48
movwf TMR0H
movlw 0XE5
movwf TMR0L
movlw 0X87
movwf T0CON
return
nuevoretardo ;reinici timer para nuevo retardo
bcf INTCON,TMR0IF
movlw 0x48
movwf TMR0H
movlw 0XE5
movwf TMR0L
comf LATA
return
;******************************************************************************
;End of program
END
Diagrama del circuito:
INSTITUTO POLITÉCNICO NACIONAL
ESCUELA SUPERIOR DE INGENIERÍA MECÁNICA Y ELÉCTRICA
UNIDAD ZACATENCO
INGENIERÍA EN COMUNICACIONES Y ELÉCTRONICA
Microprocesadores.
Práctica:
Sumador (Manejo de tablas con PIC 18F4550)
Profesor:
Vázquez Zarate Agustín.
Grupo: 6CV5
Integrantes:
Objetivo:
Desarrollar y diseñar un programa para la suma de números. Y el uso de las tables del PIC
18F4550.
Desarrollo:
;******************************************************************************
; This file is a basic template for assembly code for a PIC18F4550. Copy *
; this file into your project directory and modify or add to it as needed. *
; *
; The PIC18FXXXX architecture allows two interrupt configurations. This *
; template code is written for priority interrupt levels and the IPEN bit *
; in the RCON register must be set to enable priority levels. If IPEN is *
; left in its default zero state, only the interrupt vector at 0x008 will *
; be used and the WREG_TEMP, BSR_TEMP and STATUS_TEMP variables will not *
; be needed. *
; *
; Refer to the MPASM User's Guide for additional information on the *
; features of the assembler. *
; *
; Refer to the PIC18FXX50/XX55 Data Sheet for additional *
; information on the architecture and instruction set. *
; *
;******************************************************************************
; *
; Filename: PlantillaASM *
; Date: 12/01/11 *
; File Version: 1.0 *
; *
; Author: Ing. Alejandro Vicente Lugo Silva *
; Company: Acad. Computación ICE - ESIME Zac. *
; *
;******************************************************************************
; *
; Files required: P18F4550.INC *
; *
;******************************************************************************
LIST P=18F4550, F=INHX32 ;directive to define processor
#include <P18F4550.INC> ;processor specific variable definitions
;#define LED PORTD,3
;******************************************************************************
;Configuration bits
CONFIG PLLDIV = 5 ;(20 MHz crystal on PICDEM FS USB board)
CONFIG CPUDIV = OSC1_PLL2
CONFIG USBDIV = 2 ;Clock source from 96MHz PLL/2
CONFIG FOSC = HSPLL_HS
CONFIG FCMEN = OFF
CONFIG IESO = OFF
CONFIG PWRT = OFF
CONFIG BOR = ON
CONFIG BORV =3
CONFIG VREGEN = ON ;USB Voltage Regulator
config WDT = OFF
config WDTPS = 32768
config MCLRE = ON
config LPT1OSC = OFF
config PBADEN = OFF ;NOTE: modifying this value here won't have an effect
;on the application. See the top of the
main() function.
;By default the RB4 I/O pin is used to
detect if the
;firmware should enter the bootloader or
the main application
;firmware after a reset. In order to do
this, it needs to
;configure RB4 as a digital input, thereby
changing it from
;the reset value according to this
configuration bit.
config CCP2MX = ON
config STVREN = ON
config LVP = OFF
config ICPRT = OFF ; Dedicated In-Circuit Debug/Programming
config XINST = OFF ; Extended Instruction Set
config CP0 = OFF
config CP1 = OFF
config CP2 = OFF
config CP3 = OFF
config CPB = OFF
config CPD = OFF
config WRT0 = OFF
config WRT1 = OFF
config WRT2 = OFF
config WRT3 = OFF
config WRTB = OFF ; Boot Block Write Protection
config WRTC = OFF
config WRTD = OFF
config EBTR0 = OFF
config EBTR1 = OFF
config EBTR2 = OFF
config EBTR3 = OFF
config EBTRB = OFF
;******************************************************************************
;Variable definitions
; These variables are only needed if low priority interrupts are used.
; More variables may be needed to store other special function registers used
; in the interrupt routines.
;******************************************************************************
;Reset vector
; This code will start executing when a reset occurs.
RESET_VECTOR ORG 010
goto Main ;go to start of main code
;******************************************************************************
;******************************************************************************
;Start of main program
; The main program code is placed here.
ORG 0X1000
MOVLW #0FH
MOVWF ADCON1
MOVLW #07H ;0FH POR SI NO JALA
MOVWF TRISB
CLRF TRISD
Main ;go to start of main code
MOVF PORTB,0
ANDLW B'00000111'
CALL TABLA
MOVWF PORTD
GOTO Main
;******************************************************************************
; Start of subrutines
;******************************************************************************
TABLA
MULLW H'02'
MOVF PRODL,W
ADDWF PCL,F
RETLW H'C0' ;DT 0C0H
RETLW H'F9'
RETLW H'A4'
RETLW H'B0'
RETLW H'99'
RETLW H'92'
RETLW H'82'
RETLW H'F8'
;******************************************************************************
;End of program
END
Tabla para identificar las diferencias entre los PIC´s.
