> can I do ICSP with my picstart plus? Hi Jason, yes http://www.piclist.com/techref/microchip/picstartplusicsp.htm The 10F is a little trickier though. For the prototype I'd suggest breaking connections to the rest of the circuit with a switch, as outlined in the page above. By using small pads this needn't take up too much room on a PCB. Alternatively you could mount one in an 8-pin socket and treat it as the DIP version. If this were to be a production run, maybe try this ; have pads for ICSP and use pogo pins. The pads would be split, ie two semicircles close together isolating the PIC from the circuit. After programming, by pressing the pogo pins on the PIC-side contacts, simply put a blob of solder down to bridge the two semicircles. At some later time you could wick the solder off to re-program Whether you could ICSP without going to this trouble depends on what the PIC is attached to. I think the PS+ has only logic drive, but whatever, it's not designed for driving circuits. Best not to risk it. I've recently acquired an EasyProg (yet to fire up the s/w), as it's faster and can drive harder than the PS+, but I would still use the PS+ for ICSP when situations permitted it -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist