> Can ICSP be done on the PIC16F628 ? Of course. > Mmmmmm better the bootloader, right? No, that chip can't write its own memory. The 16F818/819 can. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.