In https://sourceforge.net/p/linuxptp/mailman/message/36382419/
Richard Cochran wrote: > Ideally you feed the 1 PPS from the GPS into your PHC. Then write a program that reads out the 1 PPS time stamps from the PHC and disciplines the PHC to match the GPS time. This seems to imply that the PPS timestamps are from the PHC. So one can compute the offset from the GPS time, and use that to discipline the PHC clock. I am a bit confused about this. Doesn't the PHC generate it's own PPS? Which is used when the -d option to phc2sys is used? The phc2sys code seems to imply that the PPS timestamps for this are the system clock. Is this correct? Then what does it mean to "feed the PPS from the GPS into the PHC"? I'm new to ptp4l, and any help will be much appreciated.
_______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
