> The On Chip Debugger Specification document, 51249a.pdf, mentions the > In-Circuit Serial Programming (ICSP) Guide (DS30277). At the > Microchip > site this morning, the search engine was down and I could not find > it. Does anyone have a good URL to a copy of DS30277? IIRC these documented used to be on the page fro the chip, but they seem to have vanished. email me privately for a copy. I assume you want the one for the 16F874? > I read in 39025.pdf, EEPROM Memory Programming Specification, that the > EEPROM memory is at word address 2100-21FF, and that this can > be put into the HEX files. This is convention, ot has little to do with the hardware. > Does anyone know a way to write RAM locations with the In > Circuit Serial Programmer? AFAIK this is not possible. 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