James Clark
James Clark
We will need to look at the log, as I suggested in my earlier reply. Also output from chronyc sources.
The problem is that ts2phc is not getting any time pulses from the M8F. Try using testptp to check that you can get pulses.
If you're seeing at least some pulses, then we're making progress: at least the M8F is wired up right. If you're not seeing every pulse, then the most common explanation...
What sort of antenna do you have? How good a sky view does it have? By default, I think most u-blox receivers only output a pulse when they have a...
ts2phc needs a good-quality pulse, which you don't have if it's taken 150 minutes to get a PPS. That kind of antenna needs a ground plane to work optimally (i.e....
Thanks for this question. The current config files don't make this as easy as they could. I suggest you create a ptp4l configuration file `/etc/linuxptp/ptp4l-gm.conf` with the settings and then...
I haven't tested an M8F yet, but what I have observed with an M8T is that it sometimes generates an extra spurious pulse (or at least the kernel delivers a...
How often are you seeing loss of lock?
Have you configured time mode? With time-mode, you need only a single satellite for a fix. On the M8F, I believe you need to use UBX-CFG-TMODE2. This is unfortunately broken...
You can find old versions of u-center at the bottom of the u-center page (under resources, evaluation software, then deselect current). Link is here: https://content.u-blox.com/sites/default/files/2022-04/u-center-v22.02_0.zip If the survey doesn't complete,...