Dear Richard. Thank you for your response. The initial host date/time in the example is set manually. probably /dev/pps0 can be used at the host side to set the time/date more accurately than using manual method defined above? so that the time sdynchronized with the dup will come from the GPS pps timepulse [ sourced in Ardusimple SimpleRT2K] ? when you wrote that linuxptp supports pps input, which way it is supported? could you extend, please? Regards, Andrei Volodin
On Wed, Jun 24, 2020 at 12:21 PM Richard Cochran <richardcoch...@gmail.com> wrote: > On Wed, Jun 24, 2020 at 12:05:11PM +0000, Andrey Volodin wrote: > > We got nvidia Jetson NX devices that have support of hardware PTP on > > ethernet lan. We got also Ardu Simple SimpleRT2K unit that has the > > timepulse. > > I don't know what this "Ardu Simple SimpleRT2K" thing is, and I don't > see how it helps you. > > > *Host side* > > ptp4l -f gPTP.cfg -i eth0 -p /dev/ptp0 -m > > > *DUT side* > > ptp4l -f gPTP.cfg -i eth0 -p /dev/ptp0 -s -m > > > -the question is how to add to this scenario /dev/pps0 so that it adds > more > > precision > > You already synchronize the DUT to the Host. The /dev/pps0 will not > add more precision. > > HTH, > Richard >
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