I think 2 16c74 chips have a fault in both a/d and serial (rs232 out). They worked 2 nights ago but don't now. I or anyone else cant see fault in the code. Antistatic precautions havent been at their best and we haven't been letting the chips cool out the eraser. Can someone send an a/d to serial out program that is guaranteed to work to test our chips. Tim ------------------------------------------------------------------ If you can read this, it is the end of the message! My web pages are at http://web.ukonline.co.uk/members/tim.kerby/ My PIC site is at http://web.ukonline.co.uk/members/tim.kerby/pic/ It needs your projects! ------------------------------------------------------------------