alarm.c

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#include"SPCE061A.H"
#include"Alarm.h"


void vAlarmSysInit(void){
	unsigned int temp;
	temp = *Port_IOA_Dir;
	temp = temp&0x7fff;
	temp = temp|0x8000;
	*Port_IOA_Dir = temp;
}

void vAlarm(void){
	*Port_INT_Ctrl |= 0x0800;	
}

void vUnAlarm(void){
	*Port_INT_Ctrl &= 0xf7ff;
}
void FIQ(void)__attribute__((ISR)){
	unsigned int temp;
	temp = *Port_IOA_Data;
	temp &= 0x8000;
	temp = ~temp;
	*Port_IOA_Data &= 0x7fff;
	*Port_IOA_Data |= temp;
	*Port_TimerB_Data = 4093; /*Focs 24.576mhz ,计数处值4093，300khz TimerB溢出中断*/
	*Port_INT_Clear |= 0x0x0800;/*清除中断*/
}