Eugen COCA wrote: > David, > > I have an *identical* configuration. There no need to recompile the > kernel ! If you have the correct connections (you have) you only need > to put "enable pps" in the ntpd.conf file. > > Please write me on the mail dirrectly for other information.
This is what I had: # The GPS receiver on COM1 at 4800 baud # # mode 1 = use $GPRMC statements # time1 = trimming offset # flag3 1 = enable Kernel PPS discipline # server 127.127.20.1 mode 1 prefer fudge 127.127.20.1 time1 0.000 flag3 1 refid PPS and recompiling the kernel changed the offset from looking like a typical Internet source (few milliseconds accuracy) to a PPS source with a few microseconds accuracy. However, I see that the revision date on the ntp.conf file is /after/ recompiling. I think the only change I made was the refid, but I'm not 100% sure now. There was a distinct difference in the output of a "ntpdc -c kern" command before and after, as shown towards the end of this page: http://www.david-taylor.myby.co.uk/ntp/FreeBSD-GPS-PPS.htm David _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
