> http://www.voti.nl/blink shows ICSP circuits for most flash PICs. No, an > xtal is not needed. Thanks for making all this information available, I am thinking of building me a wisp628, I guess it won't fit in a 627 (which I have an 'a' version of) will it work using a 628a? Can carriers be made for 'extra-circuit' programming? I have one project that doesn't have the room for an ICSP header. Anthony -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics