Hi,
I built an NTP server with a GPS and PPS as per this guide (exact hardware): http://open.konspyre.org/blog/2012/10/18/raspberry-pi-time-server/ I got things up and running with the same result as per said guide, before determining that my PPS wasn't wired up correctly. I fixed that, and now I'm sure it's wired up - it's now detected in dmesg, and ppstest indicates it's running. As far as any NTP diagnostic I can find goes however, nothing is any different (it feels like I have less drift, but I didn't keep graphs before), which leads me to the question of "how do I know it's working?". As per the guide, I run this in ntp.conf: server 127.127.20.0 mode 17 minpoll 3 iburst true prefer fudge 127.127.20.0 flag1 1 time2 0.496 I can definitely see, in ntpq -p, the GPS_NMEA driver being used. I can see a related thread here: http://ml.enneenne.com/pipermail/linuxpps/2009-February/002888.html Specifically, my googling generally pointed me at looking for PPSSIGNAL in the status, however, it seems that a lack of it (as is my case) is "normal" in many circumstances. Any advice appreciated. -Josh. _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
