Re: Adafruit USB and PPS

[Anders Wallin]

ppstest and ppswatch should show if your hardware (and kernel?) configuration is working, something like this:

https://lists.nongnu.org/archive/html/gpsd-users/2019-10/msg00025.html

getting that kernel PPS into gpsd was a stumbling block for me - at least gpsd needs to be built with pps-support ('timeservice'?) - documenting this better would be good.

AW

On Tue, Nov 26, 2019 at 10:45 AM Neal Dillman <address@hidden> wrote:

Gary,

That device purports to support PPS output on RI (Ring Indicator) serial control pin via USB (3rd bullet down in the description).  That is what I would like to take advantage of.  My impression is that gpsd should be able to work with that.  No?

Regards,
Neal

-----Original Message-----
From: gpsd-users <gpsd-users-bounces+ndillman=address@hidden> On Behalf Of Gary E. Miller
Sent: Monday, November 25, 2019 11:28 PM
To: address@hidden
Subject: Re: Adafruit USB and PPS

Yo Neal!

On Mon, 25 Nov 2019 21:14:08 +0000
Neal Dillman <address@hidden> wrote:

> I have what appears to be an unusual configuration that trying to make
> work:
>
>
>   *   Raspberry PI CM:
> https://www.raspberrypi.org/products/compute-module-3/
>   *   Adafruit USB GPS: https://www.adafruit.com/product/4279

That GPS does not serve PPS over USB.

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

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