单片机为PIC16F690.此程序在软件中模拟运行时,一切正常.
INCLUDE "P16F690.INC";闪灯程序,1灯-2灯-3灯-4灯-1-2-3-4依次循环
ORG 0000H
NOP
BSF STATUS,RP0
CLRF TRISC
BCF STATUS,RP0
BSF STATUS,RP1
CLRF ANSEL
CLRF ANSELH
ST MOVLW 01H
MOVWF PORTC;1灯点亮
CALL YS1S
MOVLW 02H
MOVWF PORTC;2灯点亮
CALL YS1S
MOVLW 04H
MOVWF PORTC;3灯点亮
CALL YS1S;程序运行完这一步时,就直接运行到标号ST处了???????????
MOVLW 0FH
MOVWF PORTC;
CALL YS1S
GOTO ST
YS1S MOVLW 0FFH;延时1秒
MOVWF 40H
LP0 MOVLW 0FFH
MOVWF 41H
LP1 MOVLW 02H
MOVWF 42H
LP2 DECFSZ 42H
GOTO LP2
DECFSZ 41H
GOTO LP1
DECFSZ 40H
GOTO LP0
RETURN
END |
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