程序很简单，就想进个中断，让灯灭了，外部中断0接了个开关，低电平触发的接法的，中断就是进不去，我刚学ARM，高手帮帮我
#include <LPC2103.H>
#include "config.h"
#define LED (1<<13)
#define KEY (1<<14)
#define NKEY (0<<14)
void __irq Eint0IRQ ()
{
IODIR=LED;
IOSET=LED;
EXTINT=0X01;
VICVectAddr=0x00;
}
int main()
{
IODIR=LED;
IOCLR=LED;
EXTPOLAR=0X00;
EXTMODE=0X00;
VICIntSelect=0;
VICIntSelect=NKEY;
VICVectCntl0=0x20|14;
VICVectAddr0=(unsigned long)Eint0IRQ;
VICIntEnable=KEY;
EXTINT=0X01;
while (1);
} |
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