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Re: 關於18F4620和18F452的INT0
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高級會員
 
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PORTB的指令改成LATB試試…
發表於: 2007/11/8 9:34
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關於18F4620和18F452的INT0
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新會員
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#include<p18cxxx.h>
#include<stdlib.h> #include<delays.h> void InterruptHandlerHigh(void); void main() { RCONbits.IPEN = 1; INTCONbits.INT0IE = 1; INTCONbits.GIEH = 1; TRISB = 0x01; PORTB = 0x00; while(1); } //------High priority interrupt vector--------------------- #pragma code InterruptVectorHigh = 0x08 void InterruptVectorHigh(void) { _asm goto InterruptHandlerHigh _endasm } #pragma code //------High priority interrupt routine-------------------- #pragma interrupt InterruptHandlerHigh void InterruptHandlerHigh() { if(INTCONbits.INT0IF) { INTCONbits.INT0IF = 0; PORTBbits.RB7 = 1; Delay10KTCYx(500); PORTBbits.RB7 = 0; } } ==================================== 上面是自己寫個4620的INT0外部觸發,使RB7的LED燈亮, 看過datasheet多次但還是找不出哪裡有沒設定到的,以上的程式燒錄到452卻可以正常運作,不知道4620哪裏還沒設定到,請各位有經驗的大哥指教小弟一下,謝謝!
發表於: 2007/11/5 19:06
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