3.LED闪烁代码

#include<reg52.h>

sbit LED = P0^0;
sbit ADDR0 = P1^0;
sbit ADDR1 = P1^1;
sbit ADDR2 = P1^2;
sbit ADDR3 = P1^3;
sbit ENLED = P1^4;

void main()
{
	unsigned int i = 0;
	ENLED = 0;
	ADDR3 = 1;
	ADDR2 = 1;
	ADDR1 = 1;
	ADDR0 = 0;
	
	while(1)
	{
		LED = 0;//灯亮
		for(i=0;i<30000;++i);
		LED = 1;//灯灭
		for(i=0;i<30000;++i);
	}
}