KBI中断的问题，路过熟悉的请指教？ KBI, 指教

knightccc

程序如下，要么是进不了中断，要么就是一直在中断内循环，ACK没有将标志位清0？
interrupt void KBIIsr(void) {


KBI1SC &= ~0x02;


if (PB0==0) {
LED1 = LED_OFF;
LED2 = LED_OFF;
LED3 = LED_OFF;
LED4 = LED_OFF;
LED1=LED_ON;
gu8Command=1;
}

if (PB1==0) {
LED1 = LED_OFF;
LED2 = LED_OFF;
LED3 = LED_OFF;
LED4 = LED_OFF;
LED2=LED_ON;
gu8Command=2;
}

if (PB2==0) {
LED1 = LED_OFF;
LED2 = LED_OFF;
LED3 = LED_OFF;
LED4 = LED_OFF;
LED3=LED_ON;
gu8Command=3;
}



KBI1SC |= 0x04;
KBI1SC |= 0x02;

}


void KBIInit(void) {


KBI1SC &= ~0x02;
KBI1PE = 0xC3;
KBI1SC |= 0x04;
KBI1SC |= 0x02;

}

strongchen

什么芯片？

knightccc

mc98s0860gt