On Fri, 13 Sep 2002 llile@SALTONUSA.COM wrote: >Flash forward to 2002. The 16F676 is a Flash part. (pun intended) >Programming it involves erasing it first, then dumping in the program. In >development I can just read the part, write down the OSCCAL word, then >scratch it into my program at the last minute. But in production, that's >another thing entirely. How do they get this calibration word + program >into a production part without erasing the calibration word first? By using an open source programmer where this feature is supported by default or can be added by writing (scripting) 10 lines or less. This is related to serialization and other such things (where you write different code into each chip). Peter -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads