Hi. What are there to think about if you'd like to do ICSP using Wisp628 and the target is a PIC with a 3.3V suuply ? A separate 5V supply for the Wisp628 maybe ? What about logic levels on the programming pins ? Jan-Erik. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.