KP_ wrote: > ... > While downloading new code onto both the boards using the ICD 2 debugger in > both debug and program mode, the outputs seem to be highly unstable - LEDs > connected to the outputs seem to flash while the program downloads. > Hi Kashan Good issue. Yes, I've seen this effect happen many times, while developing code for an instrument using the IDC2, although it's not been a problem for me (yet). I ought to look into a) pulling all PIC port pins up or down as appropriate, and/or b) having some sort of master disconnect system in place so that field reprogramming does not cause the unwanted random operation of scary things, e.g. 10-ton presses, welding robots etc. Food for thought, thanks Matt -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist