Dear All,

I am fascing a problem regarding LED blinking.

What i want to do:
------------------

I just want to blink a LED fitted in Port P1.0(ie. 0th pin of P1).


My diagram:
-----------


I fitted the LED with a resistor (as a current limitter) with the Microcontrller AT89C52. The MC is given all the necessery connection(like VCC,GND,Xtl, RC Reset etc.)



Compiler:
---------


Keil c51(Eval)



Program used:
-------------

#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++)
	;

}

Problem:
--------


The LED is not blinking at all. Rather it is in always glow state.


Pls. can any body help me regarding this problem.


Thanx in advance.
Kaushik.