add phc2sys usage

2020-09-17 15:00:05 +08:00
parent 6cb1d7c4a3
commit a502dcddfd
1 changed files with 7 additions and 0 deletions
@@ -217,3 +217,10 @@ sudo ptp4l -i eth0 -l 6 -m

 When a sync packet appears on the network, it indicates that the master clock of ptp4l is successfully turned on.

+Use the following command, PTP Hardware Clock is synchronized to system clock.
+
+`phc2sys` usage: http://manpages.ubuntu.com/manpages/cosmic/man8/phc2sys.8.html
+
+```bash
+sudo phc2sys -c eth0 -s CLOCK_REALTIME -O 0
+```