HI That approach would also work fine on a “internal clock” MCU. Scratch the need for a fancy timer. You may be down under 50 cents ….
Bob > On Oct 19, 2016, at 7:15 PM, Mark Sims <hol...@hotmail.com> wrote: > > Here's another way to do it for a wall clock display... set up an > oscillator/divider (or even a 555 timer) to generate a frequency close to, > but faster than 65536 Hz. Setup a 16 bit counter clocked by that signal. > When the 1PPS signal arrives, start the counter. After 65536 pulses the > counter will overflow... stop the counter (and set up for the next 1PPS > trigger) when that happens. The Q0 output (lowest bit) from the counter > will be a burst of 32768 pulses that repeats once a second. Use that to > drive your clock. The slight pause between bursts of 32768 pulses will not > be noticed on the clock display. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
