Re: [gpsd-dev] gpsd/ntpd

[Henning Hakonsen]

Hey

Thanks for the reply. I got my program to feed ntpd with the PPS signal.

Now the only thing I am struggeling with is that I need to edit (linechange or something) ntp.conf file and restart ntp after boot.

Do you have any idea as why I need to do that? 

With kind regards,

Henning Håkonsen

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Fra: Gary E. Miller <address@hidden>
Sendt: 28. juli 2016 20:56:17
Til: Henning Hakonsen
Kopi: address@hidden
Emne: Re: [gpsd-dev] gpsd/ntpd

 

Yo Henning!

> I am currently trying to send a PPS signal to gpsd or ntpd. I am
> using u-blox gps receiver for gps clock, but the PPS signal is
> hardwired to GPIO. Our software can get the PPS signal and I would
> like to signal ntpd with this signal over shared memory much like
> gpsd is.

If you are on a RasPi or BBB then check out the gpsd-time-service-howto.txt
in the tarball.  The solution is well documented.

There are important improvements to this in git head, so be sure to
try git head and not anything from your distro.

RGDS
GARY
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