eds_equipm...@verizon.net said: > OK, here is the actual question. Do you think it is OK to consider a pulse > which arise 250 ns early to be close enough? And no, I am not forgetting > about that 3 ns, there is about 3 ns of delay added by the output > circuitry.
If you want to earn your time-nut merit badge, you have to measure it. The Ethernet on the Raspberry Pi is on the USB bus. That adds about a 1/2 ms of jitter. If you are using ntpd, there is a fudge factor that lets you correct for any offset. (and another one that lets you use the other edge, but I think the Pi doesn't capture it) -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.