Good question and the reason for the large counter. If locked its a hard number and a number above or below that number is how far its off and in what direction. Yup 24 bits was a bit crazy but it wasn't anything to do. That said a single 8 bit counter would have been fine given the stability the RB seems to have all by itself.
On Fri, Feb 10, 2012 at 8:28 PM, Chris Albertson <albertson.ch...@gmail.com>wrote: > On Fri, Feb 10, 2012 at 5:10 PM, David <davidwh...@gmail.com> wrote: > > > All you need for this is the flip-flop. Clock the flip-flop with the > > 1 PPS signal and capture whether the oscillator is leading or lagging. > > I can see how this can detect lock. If the FF is the same each second > you are good. But if it changes how do you know the direction of the > change? > > -- > > Chris Albertson > Redondo Beach, California > > _______________________________________________ > 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.
