Does anyone have more than a basic grasp of PIC ICSP? I have a new board in front of me with several TQFP & SOIC flash PIC's - (hopefully) set up for programming each individually thru my PICStart+ with an adapter cable I made for the occasion. It worked well on the breadboard but not so on my finished board. I can scope the clock, data and 13V on/MCLR, but MPlab says the chip isn't blank when starting and fails every time. 4 of the 5 pins required for programming stay common among the PICs, but the /MCLR pins are isolated thru shunt jumpers. The clock & data signals from the programmer show as rining pretty badly.....what else might I consider??? Hence, I am here begging for any clues, help, etc.... Chris -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu