static_led.c

51单片机及其C语言程序开发实例光盘资料.rar

#include "reg51.h"

void IO_Init()
{
	P0 = 0x00;
	P1 = 0x00;
	P2 = 0x00;
	}

void main()
{
	IO_Init();
	while(1)
	{
		P0 = 0x03;
		P1 = 0x7f;
		P2 = 0x7f;	
		}	
	}