isr.c

这里有很多我自己做的凌阳单片机源程序

#include<spce061a_chf.h>
#define startA 0x0031//4096&1
#define stopA 0x0036//0&0停止计数
extern get_ma();
extern lcd_init();
extern lcd_display();
extern page_erase();
extern write_flash();
extern flag;
extern flag2;
extern num[34];
extern value;
void IRQ3(void)__attribute__((ISR));
void IRQ3(void)
{	
	
	*P_TimerA_Ctrl=stopA;		
	num[flag]=*P_TimerA_Data;//读TimerB计数的结果	
	*P_TimerA_Data=0x0000;
	if(*P_INT_Ctrl&0x0100)//是EXIT1中断
	{
		flag++;			
		if(flag<=33)
		{
			*P_TimerA_Ctrl=startA;//TimerA停止计数	
			
		}
		else
		{
			//asm("irq,off");
			flag=0;	
			flag2=1;
			value=get_ma();	
			lcd_init();		
			lcd_display();
			flag2=0;
			page_erase();
			write_flash();	
			Set_IOB_Data(((~(value/10))<<4)&0xf0);	
			//asm("irq,on");		
		}		
		*P_INT_Clear=0x0100;//清中断0
		
	}		
	else if(*P_INT_Ctrl&0400)//EXIT2中断
	{
		*P_INT_Clear=0x0400;
	}
	else
	{
		*P_INT_Clear=0x0080;//触键唤醒中断
	}
}