SparkFun Forums 

Where electronics enthusiasts find answers.

Tips and questions relating to the GPS modules from SFE
By mbeltagy
#44391
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
#44393
Have you tried connecting the AVR to the PC via a level converter, to make sure that your serial routines are working properly?

Leon
By mbeltagy
#44394
I connected the AVR using the starter kit to the PC directly without a level converter and it worked fine
By mbeltagy
#44395
Thank you very much leon.
It actually did work after swapping the TxD and RxD
User avatar
By leon_heller
#44399
That caught me out once with a GE-863, I had to cut a couple of tracks on my PCB. :(

Leon
By maokh
#44460
...at least you didnt forget to read the little note about SIRF_BIN and the second serial port ;)
long long title how many chars? lets see 123 ok more? yes 60

We have created lots of YouTube videos just so you can achieve [...]

Another post test yes yes yes or no, maybe ni? :-/

The best flat phpBB theme around. Period. Fine craftmanship and [...]

Do you need a super MOD? Well here it is. chew on this

All you need is right here. Content tag, SEO, listing, Pizza and spaghetti [...]

Lasagna on me this time ok? I got plenty of cash

this should be fantastic. but what about links,images, bbcodes etc etc? [...]