> In my product, I brought the required signals (Vdd, Vss, MCLR, RB6, anb RB7) > to a 7 pin header. The outer-most 4 pins normally have shunts across them, > so that when they are removed, you break the connections to Vdd and MCLR to > the rest of the board. The cable to the PICstart is a short (6") cable that > connects the appropriate header pins in the target board to an 18 pin plug > that goes into the ZIF socket. The thing to watch is that RB6 & 7 must not > be loaded too much by the application circuit, so it's best if they are used > as inputs by your application. That being the case, you can safely use 4K7 > ohm resistors to isolate the PIC's pins from the rest of the cirucuit. > > For the production version, I use the PROMATE, with an interface box that > includes buffers on the unidirectional signals, and a short, shielded cable > to drive RB7. > > Using the ICP programmer is simple: > > 1. you remove the two shunts on the target board, > 2. plug in theprogramming cable, > 3. program the PIC as usual, > 4. remove the cable, and > 5. re-install the shunts. > > Hope this helps. > > ... Gregg WOW... It is no wonder with people like Gregg giving away such important details as he does, that this list is so popular, and the people using the microchip products are so productive!!! Thanks so much, everyone for all your help. Dan -- Daniel Holt - Genetronics Inc. dholt@genetronics.com http://www.genetronics.com http://rohan.sdsu.edu/home/holt/index.html