51单片机led流水灯程序+PROTEUS

以下是51单片机LED流水灯程序和PROTEUS仿真电路图：

#include <reg52.h>
#include <intrins.h>

#define uint unsigned int
#define uchar unsigned char

sbit led1 = P1^0;
sbit led2 = P1^1;
sbit led3 = P1^2;
sbit led4 = P1^3;
sbit led5 = P1^4;
sbit led6 = P1^5;
sbit led7 = P1^6;
sbit led8 = P1^7;

void delay(uint ms)
{
    uint i, j;
    for(i = ms; i > 0; i--)
    {
        for(j = 110; j > 0; j--);
    }
}

void main()
{
    while(1)
    {
        led1 = 0;
        delay(500);
        led1 = 1;
        led2 = 0;
        delay(500);
        led2 = 1;
        led3 = 0;
        delay(500);
        led3 = 1;
        led4 = 0;
        delay(500);
        led4 = 1;
        led5 = 0;
        delay(500);
        led5 = 1;
        led6 = 0;
        delay(500);
        led6 = 1;
        led7 = 0;
        delay(500);
        led7 = 1;
        led8 = 0;
        delay(500);
        led8 = 1;
    }
}

PROTEUS仿真电路图如下：


注意：P1口需要接上8个LED灯，否则仿真不会有输出效果。