> Also the PLL goes up and offsets rise. (just like before) Another way to maybe learn something.
Can you grab a copy of http://users.megapathdsl.net/~hmurray/time-nuts/60Hz/60Hz.py 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 using. If you stop ntpd, nobody should change the drift. You can use ntptime -f 0 to clear it. ----- 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: cat /sys/class/pps/pps0/assert It will show something like: 1555283247.999730528#84947 The number after the # is the number of pulses. The number before is the time stamp of the last pulse. -- These are my opinions. I hate spam. _______________________________________________ devel mailing list devel@ntpsec.org http://lists.ntpsec.org/mailman/listinfo/devel
