Re: Issue with RTC and PPS

Ok it seems that using the SHM 1 without the lock works. I will turn it off
tonight and I will check again tomorrow morning to be sure

----------------------------------------------------------------------------------
Dr. Gabriele Coppi
Marie Curie Skłodowska Fellow,
Department of Physics, Università degli Studi Milano-Bicocca
https://gabrielecoppi.github.io/
Phone Number: +39 0264482356



On Mon, Nov 14, 2022 at 4:33 PM Miroslav Lichvar <[email protected]>
wrote:

> On Mon, Nov 14, 2022 at 04:23:01PM +0100, Gabriele Coppi wrote:
> > Now I have the following problems, when I shutdown/reboot the RPi:
> >
> >
> >    1. it seems that chrony never selects the PPS source, and given that
> GPS
> >    is marked as noselect, I don't have any GPS timing
>
> If you remove the lock option and add an NTP server (temporarily),
> does PPS work?
>
> Have you tried SHM 1 or SOCK, assuming you use gpsd?
>
> >    2. any RTC support is outside chrony, but as said I would like to
> track
> >    it with chrony
>
> chronyd relies on RTC_UIE_ON, but maybe hwclock could work. It has the
> --adjust option.
>
> > I specify that chrony is run as daemon at startup with the -s flag
>
> Without rtcfile that probably doesn't do anything useful.
>
> --
> Miroslav Lichvar
>
>
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