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Easy Question for Just About Anyone Out There

Posted by Dean on November 23, 2010 at 7:35am

When I run the GPS test in CLI mode, I always get 0 back as the number of satellites despite obtaining good position fixes.  Am I the only one that is experiencing this, or is this a bug in the code? I am using a MediaTek GPS receiver that I had to reload the firmware onto.  I do not have GPS data when actually flying, and I have been trying for weeks to get to the bottom of the problem.  Perhaps I just need to purchase a new GPS receiver.

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Replies

  • 3D Robotics
    Chris Anderson November 23, 2010 at 8:58am
    Yes, we don't currently support this field. We will in the next rev of the MediaTek library, in a week or two (it will be useful with the new HappyKillmore GCS).
  • DaveyWaveyBunsenBurner November 23, 2010 at 7:56am
    Hi,

    I* believe* the binary protocol between the APM and the GPS unit doesn't support this field. The protocol is designed to be as mean and lean as possible and so all superfluous fields are removed.

    I may however be wrong!
  • Tad Pole November 23, 2010 at 7:44am
    Please take this as a uninformed answer, but I was under the impression that this is normal. The ardupilot does not need the info to operate, and therefore it isn't in the code. Again, I am only 80% sure this is the case.
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