// 初始化部分
// Pin change interrupt
// PCINT20 enabled, other PCINTs disabled
PCIFR = 0x0f; // clear all pin change interrupt flags
PCICR = (1<<PCIE2); // PCINT23:16 enabled
PCMSK3 = 0;
PCMSK2 = (1<<PCINT20); // PCINT20 enabled
PCMSK1 = 0;
PCMSK0 = 0;
...
sei(); // enable interrupts globally
...
// 中断服务程序
#pragma vector=PCINT2_vect
__interrupt void irqPCInt2(void)
{
// PCIF2 bit in the PCIFR register is automatically cleared when interrupt service routine is executed
static BOOL bDebug;
if(bDebug){
DEBUG_LO;
bDebug = 0;
}else{
DEBUG_HI;
bDebug = 1;
}
} |
|
楼主
