Look at gPTP. On Wednesday, July 15, 2020 at 7:29:55 AM UTC-6, jaka.k...@gmail.com wrote: > > Current Beaglebone Black images offer support for high resolution timers > in Linux kernel. They are controlled by ktime.h library and depend on > system's clocks (CLOCK_MONOTONIC, CLOCK_REALTIME,...). The clocks can be > looked up from userspace programs with commands clock_gettime > <https://linux.die.net/man/2/clock_gettime>, clock_settime and > clock_getres from time.h library. > What I would like to do is make/write a protocol in c that would > synchronize realtime clocks between two boards over ethernet cable > connection or internet. My goal is testing how accurately two clocks can be > set to the same global time under different protocols. I'm planning to > start with ntp, would using an existing library or client make sense here? > I read BBB sometimes comes with daemons for ntp, in that case how would I > set one board to act as a server in protocol? >
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