Hi there,
first of all: Thanks for all the help I got so far just by reading - it pretty much brought me from zero to a almost finished projekt.
Also right in front sorry for my english, it´s not my native language.
There are always some small obstacles in the way...mine is called GPS (or stupidity if you like).
My problem is the following:
I am using the latest version of the Ultimate GPS Breakout (v3) and everything worked just fine on a rasperry pi (B) until I soldered it on my board and forgot to remove the supporting battery. It came how it must: I caused a short circuit.
Right now the GPS is not working like it should anymore, but it is not quite death either: The status LED is providing still the correct information about the FIX. When connected with USB I get with "sudo cat /dev/ttyUSB0" a (in my eyes) proper output with a correct lan, lot etc. When running "cgps" I get as well a proper output and everything seems to be ok.
When I try the steps with UART (GPIO), I can not get anything with "cat /dev/ttyAMA0" (should work the same way?) or "cgps".
I tried a new wheezy image as well, but I think I can narrow it down to a hardware problem since it worked perfectly BOTH WAYS before soldering.
So right now I try to figure out whats the difference between using the GPS with USB and GPIO - actually I can not think of anything. And why was it working before the soldering; just a pure coincidence and its a software problem after all? Or could it even mean that there has to be a complete different problem with my GPIO´s?
Any ideas at all?
Thanks a lot for help
Mark
Strange GPS behaviour after short circuit
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- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: Strange GPS behaviour after short circuit
At a guess, you may have damaged the GPIO on your Pi. USB goes through different hardware. But it sounds like the GPS module is OK.
- pischu7
- Posts: 11
- Joined: Mon Mar 10, 2014 5:34 pm
Re: Strange GPS behaviour after short circuit
So it does not make any difference for the GPS module which way it is connected? It is alway providing the data the same way so if it´s working with USB it has to work with GPIO as well (assuming the GPIO´s are OK)?
If that is the case I clearly need to have a look at my GPIO´s I guess...
If that is the case I clearly need to have a look at my GPIO´s I guess...
- adafruit_support_rick
- Posts: 35092
- Joined: Tue Mar 15, 2011 11:42 am
Re: Strange GPS behaviour after short circuit
Yes, that's right.
- pischu7
- Posts: 11
- Joined: Mon Mar 10, 2014 5:34 pm
Re: Strange GPS behaviour after short circuit
Thanks a lot for your help!
Please be positive and constructive with your questions and comments.