Since Olin told me my 12c508s where OTP I switched to simulating my projekt instead of wasting a chip for each compile/burn/test :) When stepping through my code I cant see GPIO change in the SFR window when doing something like: bcf GPIO, 1 Is that correct and if yes then where can I see if my output pins are high or low? tia /frax -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu