> Does the programmer do a software reset which reboots with the new > configuration setting, or does the whole board need a power on reset. In nearly all cases a /MCLR reset is sufficient, but I recall someone stating that changing some specific fuse bits (osc?) on 18F's takes effect only after a power-up. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads