[Xastir] NMEA GPS data duplication

[Eric K Germann]

I had a similar problem when I wanted to use a single GPS 18 puck for
both an NTP time reference (needs read/write to the GPS) and gpsd
(solely for curiosity).

After thinking thru a lot of things, my son (13) said, "why don't you
solder another connector on there?"

So, I soldered a another connector on the GPS cable (only the RD and SG)
and plugged that in to a second serial port.  Port one is used by ntpd
to discipline the clock, port 2 (read only) is used by ntpd (where I use
xgps) to monitor the constellation.

5 years to get a BSEE, 2 years for an MS and I was outsmarted by a 13
y/o.  Needless to say, he's working on his ticket ...

EKG


Lee R. Burton wrote:
> Does Xastir provide GPS data to gpsd.. I know it can use data _from_ gpsd.. but I am talking about GPS data coming off a GPS attached directly to the TNC..?
> How does one go about configuring gpsd to recieve data from xastir?
> Thanks,
> Lee Burton
> lburton at mrow.org
> 301 910 0246
> 
> ----- Original Message -----
> From: "WE7U Curt" <archer at eskimo.com>
> To: "Xastir - APRS client software discussion" <xastir at lists.xastir.org>
> Sent: Wednesday, July 1, 2009 1:38:00 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Xastir] NMEA GPS data duplication
> 
> On Wed, 1 Jul 2009, Lee R. Burton wrote:
> 
>> Has anyone (or did I just miss an option.. I looked...) had Xastir
>> output / stream / create a virtual serial port with the NMEA GPS
>> data (from say a KPC3+ with GPS attached) for use in other
>> applications (GPSDrive, Navit, etc) running at the same time as
>> Xastir.
>> I feel like it probably wouldn't be too hard to accomplish,
>> however, I figured I might as well ask first.
> 
> "gpsd" is the option that we use for such.  It allows sharing of GPS
> data, but then your apps need to be able to talk to gpsd.  I don't
> know if there's a virtual serial port sort of client for gpsd, or
> whether it has that built directly in, but that'd be the place to
> put your efforts (my opinion).
> 

-- 
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Eric K Germann
ekgermann (at) cctec (dot) com
419 605 4026

http://www.linkedin.com/in/ericgermann

PGP/GPG Fingerprint: B047 5EFD 3851 6D79 A851  709B 07FC 9F13 7496 9066

"Every man must do two things alone; he must do his own believing and
 his own dying." -- Martin Luther
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