On 29/12/2013 15:18, Adrian P wrote:
Thank you very much David!
So "o" means PPS is used... In my case, I only have "*" in front of
the driver IP.... So I suppose NTP is not using the PPS signal... hmm,
wondering why. This is my output:
server 127.127.20.0 mode 1 minpoll 4 maxpoll 4 prefer
fudge 127.127.20.0 flag1 1 flag2 0 flag3 1 refid PPS
root@debian:~# ntpq -crv -pn
associd=0 status=0415 leap_none, sync_uhf_radio, 1 event, clock_sync,
version="ntpd [email protected] Sat May 12 09:07:18 UTC 2012 (1)",
processor="i686", system="Linux/3.2.0-4-686-pae", leap=00, stratum=1,
precision=-19, rootdelay=0.000, rootdisp=39.519, refid=PPS,
reftime=d66ab9bb.59e07233 Sun, Dec 29 2013 17:09:47.351,
clock=d66ab9ca.45e6469f Sun, Dec 29 2013 17:10:02.273, peer=52263, tc=4,
mintc=3, offset=14.437, frequency=50.557, sys_jitter=23.063,
clk_jitter=19.669, clk_wander=5.553
remote refid st t when poll reach delay offset jitter
==============================================================================
*127.127.20.0 .PPS. 0 l 15 16 377 0.000 14.437 23.063
[]
The PPS line discipline is attached as well:
root@debian:~# ps -ef | grep ldattach
root 493 1 0 09:46 ? 00:00:00 /usr/sbin/ldattach pps
/dev/ttyS0
root 2157 2069 0 17:15 pts/0 00:00:00 grep ldattach
root@debian:~#
What else should I check?
Many thanks again.
Adrian,
Can you try the ppstest utility? I have some notes on my Raspberry Pi
page - look for the string: "Checking the PPS is working" on the page:
http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html
RPi's Linux is based on Debian....
--
Cheers,
David
Web: http://www.satsignal.eu
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