> > I am working on a programmer, but I am not aware of hardware changes needed. > > Please explain? > > Wouter, you have to remember that I'm the LVP guy, so I always look at it from > that prospective. The PGM pin has moved from RB3 to RB5, so no 16FXXX LVP > programmer will work out of the box. It isn't a big deal, but it isn't simply > a software update either. OK, I understand. I am the in-cicruit programmer guy and one of the output pins of my programmer just says 'connect to LVP pin'. When someone wants to connect it to a socket which must accept any flash PIC I guess he has to connect diodes to every portb pin except rb6 and rb7 (and to be future-proof maybe to every other PIC pin too). BTW can anyone give a reason for Microchip to use different pins for LVP on different chips? Wouter van Ooijen -- Van Ooijen Technische Informatica: http://www.voti.nl Jal compiler, Wisp programmer, WLoader bootloader, PICs kopen -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads