On 4/26/07, MadAlexGumstix <Gumstix.List@...> wrote:
> On Thu, 26 Apr 2007 13:07:09 -0600, "Rob Barnes"
> <robcb85@...> said:
> > On 4/26/07, MadAlexGumstix
> > <Gumstix.List@...> wrote:
> > >
> > > The gumstix does nothing to communicate with the GPS receiver
> > > (except possibly init the CPU serial port).
> > >
> > > Do you have any other boards connected to the gumstix?
> > Yes I have a tweener board and a wifistix. But these were also
> > connected in the past when it was working.
> I have a similar config (Connex 400xm-bt, Tweener, WiFistix-CF), but
> had serious problems when a netCF was attached instead of the WiFistix-
> CF, so I suspect that their GPS receiver circuit/layout may be marginal
> for noise/power. I'd suggest disconnecting the WiFistix (if you haven't
> tried yet) to see if that helps.
I'll try that out.
> Which version of the GPSstix do you have, and which antennas have you
> > > been using?
> > We have been using a passive antenna (
> I assume you have the old version of the GPSstix? If you've been using a
> passive antenna with an un-modded new GPSstix (designed for an active
> antenna) you could be causing power issues or damaging the GPS receiver
> (or possibly the antenna).
I think I have R1286. I guess this means I have an active GPS antenna output
and didn't even know it. Since the GPS was working before, does this mean I
fried the receiver or antenna?
> On Thu, 26 Apr 2007 12:24:01 -0600, "Rob Barnes"
> > > <robcb85@...> said:
> > > > I've been using the GPS on my GPSstix a lot without any problems,
> > > > but just recently it stopped reporting my position. The output of
> > > > /dev/ttyS2 is:
> > > >
> > > > $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 $GPTXT,01,01,01,NMEA
> > > > unknown msg*58
> > > >
> > > > ....repeating
> > > >
> > > > I have let it sit for next to a window for about 20 minutes with
> > > > no luck. In the past it starts picking up satellites in a couple
> > > > of minutes. I have also tried connecting two different antennas.
> > > > Is there any thing I can try to debug it? Does the gumstix control
> > > > the GPS module or does it just turn on and start spitting out NMEA
> > > > data?