Re: GPS and NTPD.

[Gary E. Miller]

Yo Joseph!

On Sun, 17 Mar 2024 16:47:36 -0500
Joseph Beissel <joebeis64@gmail.com> wrote:

> We have a UBLX M8 device on our board.  What messages does gpsd use to
> populate the shared memory segment that ntpd uses?

Whish segment?  SHM(0) is time from the serial.  SHM(1) is time from the
PPS pine.

Any message that has a valid fix time an be used for serial (SHM(0)) time.
So maybe $GPRMC, maybe UBX-MON-PVT.  The list is very long.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

pgpaq79heBtah.pgp
Description: OpenPGP digital signature