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1 Anonymous Users
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Re: help!sos!!!!!
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初級會員
 
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我发现问题了，我把中断向量的地址放错了。
發表於: 2004/11/5 15:36
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help!sos!!!!!
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初級會員
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大家好啊，我現在有一個簡單的問題請教各位高手，我現在需要蜂鳴器每1秒鐘響一下，我下面的程式為什麼沒有輸出啊
ORG 0X08 BCF INTCON, TMR0IF MOVLW 0X80 MOVWF TMR0H CLRF TMR0L DECFSZ CNT GOTO ISR_SHORT GOTO ISR_LONG ;******************************************************** MAIN BSF RCON, IPEN MOVLW 0X0E0 MOVWF INTCON MOVLW 0X00 MOVWF INTCON2 MOVLW 0X00 MOVWF INTCON3 MOVLW 0X00 MOVWF TRISB MOVLW 0X00 MOVWF TRISC CLRF PORTA CLRF PORTB CLRF PORTC MOVLW 0X08 MOVWF T0CON MOVLW 0X80 MOVWF TMR0H CLRF TMR0L ;********************************************************* START BSF INTCON, GIE BSF T0CON, TMR0ON LOOP GOTO LOOP ;********************************************************* ISR_SHORT BSF PORTB, 7 CALL DELAY1 BCF PORTB, 7 RETFIE ISR_LONG BSF PORTB, 7 CALL DELAY2 BCF PORTB, 7 RETFIE ;*********************************************************
發表於: 2004/11/5 11:58
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