ThePicMan wrote: > If the programmer's output clock line was low impedance, this wouldn't > happen, right? No, since the whole effect can happen in the propagation time of the data signal from the target chip to the programmer and back. Anything you do at the programmer end of the cable can't possibly make a difference during this time. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist