Hi Bhatti,

Here is the secret disclosed. How I did it.

This will blow the minds of Atmel people off......

I think you have considerable experience with programing the micro and can develop your C code for the programer, as I can recall from the past.

If you can control the timings as given in the algoritm of the programing pulses in the data sheet, you can give it a try.

You will have to test the success with different erase timings.

Cut down the erase pulse to such a minimum period where it has only erased the lock bits and terminates before it gets a chance to filling the code area with blanks.

And mind you one thing, Just keep the secret to yourself, don't tell it to anyone on this forum.

Do let me know of your success.

Good Luck

Simon