Re: [Gumstix-users] Error on making serial-log.c

[Hossein G. N. <hgn...@gm...>]

Dave,

I got it to work!

I had everything setup the way you suggested but I could not get anything
from any of the RX connections on my breakout-gs!  And that's when I found
out that:

On R277 of the breakout GS I2C is labelled incorrectly. Is swapped with
STUART silkscreen.
RXD <-> SCL
TXD <-> SDA

So, now by connecting to SCL I am able to see my GPS data and also log them
into a text file by the tee command.
I was also able to send info out of the TX using the modified
serial-log.cthat you gave me.
THANKS ALOT !!!

Now:

   - Do you know of any programs/codes suitable for Gumstix that I can
   use to decode the output messages (NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL)
   from my GPS?  I would really appreciate it if you could give me some
   insights about them.
   - Also, I am planning to have the Gumstix run independently and
   communicate with the GPS and other parts without being connected to a PC.
   How can I make the Gumstix run my programs automatically every time that it
   boots up?
   - I am planning to extend the Bluetooth antenna out from the Gumstix
   board using an MMCX extension cable (2-3 inches).  Do you think that might
   create any problems with the Bluetooth?

I really appreciate your time and efforts.
Best Regards,
HoSsEiN


On 11/14/06, Dave Hylands <dhy...@gm...> wrote:
>
> Hi Hossein,
>
> > I have tried all of the RX connections on the breakout-gs with the TX
> > connection of my GPS and I have not seen any output yet!
> >
> > I am using:
> > http://www.sparkfun.com/datasheets/GPS/EM-406%20Product_Guide1.pdf
> > as my GPS.
> >
> > Do you have any idea about why I am not seeing anything on my screen!
>
> What voltage are you supplying the GPS?
>
> Did you connect up the ground to the ground on the breakout-gs (with
> no common ground they won't communicate). Did you connect up both
> grounds on the GPS?
>
> Is the LED on the GPS doing anything?
>
> Have you tried connected the Tx to Rx on the breakout (no GPS) and
> verify that you can receive what you send?
>
> The docs say it communicates at 4800 baud.
>
> You should see data even if you don't have a fix.
>
> How are you trying to read the serial port on the gumstix?
>
> --
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
>
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