David J Taylor wrote: > Richard B. Gilbert wrote: > [] >> I think your best help/advice will come from another GPS18LVC user. > > I described my own simple setup here: > > http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm > > but it's not Linux, and I don't feel competent enough to give > "advice". It seems likely that the wrong edge is being detected, so > why not try reversing the polarity? I only use the: 127.127.20.1 > reference clock, with GPS configured in the kernel. > > Cheers, > David
That should read: with PPS configured in the kernel. The polarity switch is listed here: http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver20.html as: flag2 0 | 1 Specifies the PPS signal on-time edge: 0 for assert (default), 1 for clear. Cheers, David _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions