Re: [gpsd-users] Is GPSD receiving PPS?

[Gary E. Miller]

Yo Jon!

On Thu, 03 Mar 2016 15:20:50 -0600
Jon Brase <address@hidden> wrote:

> Ok, so my understanding at this point is that GPSD needs the PPS
> signal to go to the GPIO pin that the Pi uses for serial carrier
> detect,

'needs' is a bit strong.  gpsd can use PPS any way you can get it into
the system.  If ntpd can read it, gpsd can read it.

Details on the preferred method are in the gpsd INSTALL file.

> I can't just have the kernel use an arbitrary pin?

Sor ot, but the kernel only knows how to do KPPS on some types of
pins.  One again, same ffor gpsd and ntpd.

> I'd used a
> hardware setup walkthrough that recommended assigning GPIO pin 18 on
> the Pi on the basis of adjacency to the serial pins,  but I'm not
> sure it itself is a serial pin.

gpsd does not care, since ppstest works you have it good enough.

> Anyways,  shouldn't be too much
> trouble to change, just moving a jumper and editing my boot
> parameters.

Why change?



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

pgpELWKWFFZdF.pgp
Description: OpenPGP digital signature