I have finally got my RPi NTP server set up referenced to a Thunderbolt
PPS.
NTP is using the PPS and my stats look good, but when I run
ntpq -c kerninfo
my output is:
associd=0 status=0118 leap_none, sync_pps, 1 event, no_sys_peer,
pll offset: 0.00753
pll frequency: -10.4492
maximum error: 0.012
estimated error: 1e-06
kernel status: pll nano
pll time constant: 4
precision: 1e-06
frequency tolerance: 500
pps frequency: 0
pps stability: 0
pps jitter: 0
calibration interval 0
calibration cycles: 0
jitter exceeded: 0
stability exceeded: 0
calibration errors: 0
The pps frequency, stability, and jitter are all zero.
dmesg | grep pps
and
ppstest /dev/pps0
both indicate the kernel pps support is working.
Why isn't the kerninfo showing any info on the pps frequency, stability,
and jitter?
--Keith
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