Ah. You only mentioned redesigning a line of PV charge controllers, which is why I did not assume you wanted to build a custom programmer. The two do not seem to be implicitly connected. For a custom programmer, I believe there are complete programming specifications on the Microchip web site, if you haven't seen them yet: http://www.microchip.com/1010/suppdoc/specs/index.htm Dale --- We are Dyslexia of Borg. Fusistance is retile. Your ass will be laminated. On Wed, 18 Dec 2002, Christopher Dusch wrote: > The BULK ERASE routine should be the same for all 16F8x PICs, right? > > A commercial programmer will eliminate my problem, but will also eliminate > the possibility for designing a custom programmer (which we plan to do) > because we will still not be able to erase the PIC. I hope I'm making > myself clear. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads