Mike Hord wrote: > I've always understood PICs to powerup with their I/O lines set to > input; i.e., high impedance. If you write your code to respect this, > to not make the lines outputs and drive them high until after you > KNOW the device isn't being reprogrammed, then no worries. The code has nothing to do with this, since it won't be running during external high voltage programming. ***************************************************************** 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