> Dan: > > Thanks for clearing that up. How do I read the OSC calibration info using the > ProPic software. Do a normal read, and check out 1FFh (if you're using a 12C508), or 3FFh (12C509). The calibration value is stored as a MOVLW. Bits 4-7 represents the calibration value. (if reading 3CA0h), the cal. value is 'A'... -Jacob Blichfeldt blchfldt@post3.tele.dk http://home3.inet.tele.dk/blchfldt/index.htm