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.c that you gave me.
THANKS ALOT !!!
I really appreciate your time and efforts.
- 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?
On 11/14/06, Dave Hylands
> 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:
> 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?
Vancouver, BC, Canada
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