At 02:43 AM 8/5/01, you wrote: > > I've got one for you: Not all of the parts start the program memory at > > the same spot. > >AFAIK (but correct me if I am wrong!) all (12 and 14 bit core) pics start at >0, ALL 12 bitters start at TOP OF MEMORY and ALL 14 bitters start at 0. Often people depend (perhaps without knowing it) on the PC to wrap around from TOP to 0, making it APPEARS as though it started from 0. The 12 bitters with internal OSC ARE documented to start at the top (to load the OSCCAL value into W) and then wrap to 0. Jerry Merrill jerrym@tech-tools.com http://www.tech-tools.com FAX: (972) 494-5814 VOICE:(972) 272-9392 TechTools PO Box 462101 Garland, TX 75046-2101 Join our PIC discussion list at http://www.tech-tools.com/picsource.htm -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads