Re: [gpsd-dev] Possible error report

[Sanjeev Gupta]

On Fri, Nov 8, 2013 at 6:58 AM, Eric S. Raymond <address@hidden> wrote:

Nothing.  You've tripped over a misfeature of the GR601-W; I have a bit set
to poke Navisys to fix it in future production.

That is good to know (the part that *I* did not break the satellites.)

 

The GR-601-W has a half-assed reaction to an attempt to switch it to
binary-only mode, which gpsd does as soon as it recognizes the chip as
a u-blox. On the GR-601-W you can turn on binary but you can't turn off
ASCII.

But that is a feature!  I have *two* GPS devices for the price of one!

 

This used to cause gpsd to flap back and forth between u-blox and NMEA
modes as packets of different types came in.  I fixed that recently,
but for reasons I don't completely understand gpsmon sometimes still
flaps.  I'll look into it, but the problem is no longer serious enough
to be a pre-3.10 issue.

This is a purely cosmetic glitch, limited to gpsmon - as you note,
conventional clients don't see it.  If you unplug the GR601-W it will
reset to its default NMEA-only mode; running gpsmon on that is
well-behaved until gpsd tries to mode-switch it to binary again.

My reason for getting a GR601-W, and trying to run git head, was to use the new gpsmon feature that indicates if 1PP is working.  Is there a replacement for gpsmon that can provide a quick check?

--
Sanjeev Gupta
+65 98551208     http://www.linkedin.com/in/ghane