> Does any of this interfere with ISCP? I have no basis for this question, just > that programming this part has given me troubles. I don't know if they're due > to me always trying ISCP or the programmer. sources of ICSP trouble: - load on /MCLR (esp. caps), so the rise from vcc to vpp is too slow - load on any of the involved pins (esp. caps) - not tying LVP enable low When you want to use an RC-reset with ICSP split the R: Vcc - 10k - C - 22k - /MCLR with a diode over the 10k. Wouter van Ooijen Van Ooijen Technische Informatica: http://www.voti.nl Jal compiler for PIC uC's: http://www.voti.nl/jal PICs kopen? http://www.voti.nl/shop -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu