89c51 - Program-1 : PORT Blink

             Today we are going to learn how interface an led with 89c51, In this program we are interfacing an LED with 0th pin of port-1, In the program port-1 is expressed as P1 and 0th pin of port-1 can be express us P1^0 

89c51 LED Blink CODE

#include<reg51.h>

sbit led=P1^0;

void delay(int n)

{

int i,j;

for(i=0;i<n;i++)

{

for(j=0;j<100;j++);

}

}

void main()

{

led=1;

delay(100);

led=0;

delay(100);

}

Follow these Steps

Circuit Diagram

Download code and design here