> I still am curious about Timer1 and WDT WDT is not a good time-base for a clock. It's temperature- dependant and will drift all over the place. 32kHz on TMR1 is far better, although that too is variable and will not be very accurate in the long term. Even 1Hz out is 2.6s per day error -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist