> > The 12F675 uses a calibration byte in the PIC to adjust the > oscillator. > > It's actualy a 14-bit program memory *word*, not a byte... But that 14-bit word contains only 8 bits of data, and IIRC only a few bits out of that are actually used for calibration. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics