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Copy pathinterrupcao_externa.asm
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138 lines (103 loc) · 1.49 KB
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Copy pathinterrupcao_externa.asm
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138 lines (103 loc) · 1.49 KB
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INCLUDE "P16F877.INC"
ORG 00h
GOTO CONFIG
ORG 04h
GOTO INT_EXT
CONFIG BCF STATUS,RP1
BCF STATUS,RP0
MOVLW FFh
MOVWF PORTA
MOVWF PORTD
MOVWF PORTE
BSF STATUS,RP0
MOVWF PORTB
MOVLW 00h
MOVWF TRISD
MOVWF PORTC
MOVLW 90h
MOVWF INTCON
MOVLW 00h
MOVWF OPTION_REG
MOVLW 06h
MOVWF ADCON1
MOVLW E0h
MOVWF TRISE
MOVLW DFh
MOVWF TRISA
BCF STATUS,RP0
MOVLW 30h
MOVWF FSR
MOVLW 03h
MOVWF INDF
INCF FSR,F
MOVLW 9Fh
MOVWF INDF
INCF FSR,F
MOVLW 25h
MOVWF INDF
INCF FSR,F
MOVLW 0Dh
MOVWF INDF
INCF FSR,F
MOVLW 99h
MOVWF INDF
INCF FSR,F
MOVLW 49h
MOVWF INDF
INCF FSR,F
MOVLW 41h
MOVWF INDF
INCF FSR,F
MOVLW 1Fh
MOVWF INDF
INCF FSR,F
MOVLW 01h
MOVWF INDF
INCF FSR,F
MOVLW 09h
MOVWF INDF
INCF FSR,F
MOVLW 11h
MOVWF INDF
INCF FSR,F
MOVLW C1h
MOVWF INDF
INCF FSR,F
MOVLW 63h
MOVWF INDF
INCF FSR,F
MOVLW 85h
MOVWF INDF
INCF FSR,F
MOVLW 61h
MOVWF INDF
INCF FSR,F
MOVLW 71h
MOVWF INDF
INCF FSR,F
MOVLW FEh
MOVWF INDF
PRINC MOVLW FFh
MOVWF PORTA
MOVWF PORTD
MOVWF PORTE
PRINC MOVLW 30h
MOVWF FSR
BCF PORTE,0
MOVLW F8h
MOVWF PORTC
PRINC2 MOVFW INDF
MOVWF PORTD
GOTO PRINC2
INT_EXT INCF FSR,F
MOVFW FSR
XORLW 41h
BTFSC STATUS,Z
GOTO REINICIE
BCF INTCON,INTF
RETFIE
REINICIE MOVLW 30h
MOVWF FSR
BCF INTCON,INTF
RETFIE
END