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Tips and questions relating to the GPS modules from SFE
By mbeltagy
I am currently trying to interface the GM862-GPS RS232 eval board with the Atmel STK500 starter kit.
The module works fine when it is connected to the PC (using hyperterminal).
I wrote a code on the microntroller using the rprintf function from the avr library to dial a number but it does not work
I tested the code by connecting the microcontroller kit to another PC and it displays the correct command on hyperterminal.

Any help would be appreciated
User avatar
By leon_heller
Have you tried connecting the AVR to the PC via a level converter, to make sure that your serial routines are working properly?

By mbeltagy
I connected the AVR using the starter kit to the PC directly without a level converter and it worked fine
By mbeltagy
Thank you very much leon.
It actually did work after swapping the TxD and RxD
User avatar
By leon_heller
That caught me out once with a GE-863, I had to cut a couple of tracks on my PCB. :(

By maokh
#44460 least you didnt forget to read the little note about SIRF_BIN and the second serial port ;)
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