hmurray at megapathdsl.net
Sun Apr 14 23:08:27 UTC 2019
> Also the PLL goes up and offsets rise. (just like before)
Another way to maybe learn something.
Can you grab a copy of
It's a hack to measure line frequency using the PPS capture logic. The idea
is to turn that inside out and use it to measure the CPU frequency by watching
a known-good PPS.
You may have to change the assert to clear - ntpd disables the one it isn't
If you stop ntpd, nobody should change the drift. You can use ntptime -f 0 to
You don't actually need the program. It's just what I use to log stuff so I
can feed it to gnuplot.
You can get the data with:
It will show something like:
The number after the # is the number of pulses. The number before is the time
stamp of the last pulse.
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