Waqar,

You wrote:

{
Terry ,
It nice that if you cannot help some one don't try to discourage him.
}

As a matter of fact you don't understand. Terry is trying to help you as everybody else has tried his best.

Please for God's sake go back to basics. Do what Erik has advised you to follow evrything step by step and from the 1st step, slowly.

Once you have climbed up the ladder of basics, you will be thinking differently.

After you have learned the basics and have gone thru the tutorials in lots of books, please do one thing, that is, come back to this forum and read all of your postings that you have made here so far. You will be feeling no less ashamed of yourself by reading your own posts.

How conveniently you said, that you are sure that its not so easy as we all think, because you have burned your four micros doing that.

That's so silly of you. Do you really think such a basic level problem is beyond the ppl who are professional.

You know nothing of coding and have started challanging others at this forum.

You have told at some instance that you have done Civil Enigneering.

I fail to understand that you managed finishing with engineering, if that's the level of your learning.

I hope you will seriously think over it.

You should ask questions like:

-I want to learn 8051, what should I do.
-I need good 8051 related books.
-I want to interrupt drive an LED blinker.

and in about a 6 months time, you will be able to ask something sensible at this forum.

God help us all to bear with you.

Babar

PS:

I am myself basicaly a mechanical engineer and EE is only my hobby. I started learning 8051 4yrs back. This forum is the main source of my learning.

Let's use this gold mine and not pollute it.