On Wed, Jun 24, 2020 at 04:29:18PM +0000, Andrey Volodin wrote: > The output of executing the cat command is "0" > cat /sys/class/ptp/ptp0/n_external_timestamps > 0 > Does it indicate that I shall investigate the approach with ts2phc?
No I am afraid not: This file contains the number of external timestamp channels offered by the PTP hardware clock. So you are out of luck with this hardware platform. You can use the PPS input on a "best effort" basis as follows. - Use ntpd (or chrony, or phc2sys, etc) to synchronize the Linux system clock to the GPS time via the PPS input. - Then use phc2sys to synchronize the PHC to the Linux system clock. Sorry, Richard _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
