学C语言第二天-2

中断控制一个LED灯的亮灭

#include "stc8g.h"
#include "intrins.h"

sbit LED_R = P0^0;

void INT2_Isr(void) interrupt 10 //INT2中断
{

LED_R = 1;

}
void INT3_Isr(void) interrupt 11 //INT3中断
{

LED_R = 0;
}

 

void main()
{

P0M0 = 0X00; //配置P0.P3准双向口
P0M1 = 0X00;
P3M0 = 0X00;
P3M1 = 0X00;
INTCLKO = 0X30; //打开外部中断INT2.INT3
EA = 1; //打开总中断

while(1)
{

 

}
}