On Sat, Dec 16, 2017 at 07:34:11PM +0000, Omar Pighi wrote: > 7) what do you mean with letting the phc2sys resetting the system clock?
Do not use: phc2sys -F 0.0 > 8) what parameter can i tune to try to fix it? -S step Specify the step threshold of the servo. It is the maximum off‐ set that the servo corrects by changing the clock frequency instead of stepping the clock. The clock is stepped on start regardless of the option if the offset is larger than 20 microseconds (unless the -F option is used). It's specified in seconds. The value of 0.0 disables stepping after the start. The default is 0.0. -F step Specify the step threshold applied only on the first update. It is the maximum offset that is corrected by adjusting clock. It's specified in seconds. The value of 0.0 disables stepping on start. The default is 0.00002 (20 microseconds). If you are not using phc2sys -F 0.0, then something else is totally broken. If that is the case, I guess that your arm device is to blame. You should run using your two PCs only, leaving out the arm board. If that works, then find out why your arm board is serving bogus frequency. HTH, Richard ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users