#include<stdio.h>
#include<regx52.h>             
#include<stdlib.h>		
					
void delay(void);  // delay genareting function


void main(void)
{
	while(1)   // for infinite loop
	{
	P1=0x01;   //set pin P1.0=1, LED will not glow for some time
	delay();   //  function to remain in not glow condition
	P1=0x00;  //set pin P1.0=0, LED will glow for some time
	delay();  // again remain in glow cond.
	}
}


void delay()
{
	int i;
for(i=0;i<900;i++)
	;

}