TangoGPS and GPSD

Bernhard Höll pearn at web.de
Sun Jul 6 17:52:58 CEST 2008


Hello,

thanks for the info. I checked and /etc/defaults/gpsd was set to the
correct device, but there was a file called /etc/defaults/gpsd.default
with an other entry. I checked with 
nc 192.168.0.202 2947
and got the output after having started gpsd again. 
I think I'll have to take the freerunner for a walk to check if I get data outside of the 
building.
Interestingly the /etc/init.d/gpsd startscript does not get triggered when selecting
"Turn on GPS" in the power menu. 
Does anyone know what action gets invoked upon selecting "Turn on GPS" ?
Is this for activating/deactivating the physical device or is the /etc/init.d/gps-hardware
start script (dummy file) being invoked?

Thanks..

Bernhard
> Does the gpsd have the right device in /etc/defaults/gpsd?
> 
> It is /dev/tty/SAC0 thus:
> GPS_DEV="/dev/ttySAC1"
> 
> To test the gpsd you can do from your desktop:
> 
> nc 192.168.0.202 2947
> 
> then type 'r' and hit enter.
> 
> Looks like this then:
> 
> ~$ nc 192.168.0.202 2947
> r
> GPSD,R=1
> $GPTXT,01,01,01,PSRF inv format*2B
> $GPTXT,01,01,01,PGRM inv format*34
> $GPTXT,01,01,01,PFEC inv format*2C
> $GPRMC,,V,,,,,,,,,,N*53
> $GPVTG,,,,,,,,,N*30
> $GPGGA,,,,,,0,00,99.99,,,,,,*48
> $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30
> $GPGSV,1,1,00*79
> $GPGLL,,,,,,V,N*64
> $GPZDA,,,,,00,00*48
> 
> 
> gpsd uses 8-10% CPU here.
> 
> 
> 
> On Sun, 2008-07-06 at 13:19 +0200, Bernhard Hoell wrote:
> > Hello,
> > 
> > I failed to get GPS working on my freerunner. I flashed the latest  
> > openmoko-devel-image-om-gta02.jffs2  and matching kernel. I installed  
> > tangogps as well as gpsd manually with opkg and I configured tangogps  
> > to connect to the gpsd, which should have been running (since a  
> > portscan of my freerunner showed port 2947 as open).
> > I kept it running for several hours, but tangogps did not report GPS  
> > information. GPSD however used about 50 to 70 % of processor power.
> > I read through the mailing lists and checked the tangogps documents.
> > 
> > It seems to me that I am missing something here. Can somebody point me  
> > to a more detailed documentation or give advice?
> > 
> > Thanks
> > 
> > 
> > Bernhard
> > 
> 




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