hi all, today i tried to get the gps running, but i didn't get a gps fix i tested it with tangogps (nice tool!) and openmoko-agpsui the only output i got was: $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 $GPRMC,,V,,,,,,,,,,N*53 $GPVTG,,,,,,,,,N*30 $GPGGA,,,,,,0,00,99.99,,,,,,*48 $GPGSA,A, http://scap.linuxtogo.org/files/6d11990f0c82d92f0252742d7ef44950.png what do i do wrong? mathias -------- Original-Nachricht -------- > Datum: Mon, 7 Jul 2008 15:37:08 +0100 > Von: Al Johnson <[EMAIL PROTECTED]> > An: community@lists.openmoko.org > Betreff: Re: GPS > On Monday 07 July 2008, Kai Römer wrote: > > Hi Al, > > If you need testers, please contact me. I have several gta02v5 > > available and can do tests in Germany Munich. > > First stab uses the example perl functions from ublox for generating the > aid-ini data, replacing their hardcoded x,y,z with values for my location. > The copyright notice on the example code says you can't do anything with > it > without permission so I can't give you the script, but I can tell you how > to > reproduce it ;-) > > Get the AssistNow online client application note from: > http://people.openmoko.org/matt_hsu/ImplementationAssistNowServerAndClient(GPS.G4-SW-05017-C).pdf > > Create a new script aid-ini.pl and start with: > > #!/usr/bin/perl > print(clientdata_prepare()); > > Go to section B - Sample Server implementation and append subroutines > clientdata_prepare and ubx_checksum to aid-ini.pl > > You need to replace the $posx, $posy and $posz values in > clientdata_prepare > with some that match your location. These are ECEF coordinated in m. > There's > an explanation of the calculation method in: > http://www.u-blox.com/customersupport/docs/GPS.G1-X-00006.pdf > > Alternatively you can use the attached spreadsheet if it survives the > list. > Just replace the lat and lon with values for your location. > > You probably want to change the time accuracy to reflect the accuracy of > the > Freerunner clock, and possibly the accuracy of your location estimate. > > Now copy the script to somewhere suitable on the Freerunner and make it > executable. I'm using /usr/local/bin. You need to install perl if you > don't > have it already: > opkg install perl > > Switch on the GPS then run the script: > /usr/local/bin/aid-ini.pl > /dev/ttySAC1 > > If you cat /dev/ttySAC1 you should be able to see it using the current > time > according to your Freerunner. TangoGPS makes it easier to see what it's > doing. In the only test I've managed so far it got a fix with a poor view > of > the sky, while my Garmin Geko was still struggling to see 3 sats. It > wasn't > quick, but it was better than the Garmin. It would be interesting if you > could try 2 units side by side, one with aid-ini and one without, to see > if > it really makes a difference or if I was just lucky. I'll try to get some > more testing in, but the weather isn't good here, and I don't want to get > my > new toy wet ;-) -- Psssst! Schon das coole Video vom GMX MultiMessenger gesehen? Der Eine für Alle: http://www.gmx.net/de/go/messenger03 _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community