Strange CTUN Roll behaviour - SW or HW Issue?

Hi,

I have noticed a strange CTUN Roll behaviour in my Pixhawk-Skywalker.
The plane laid on a table and I saw the HUD moving in my goggles.
The log shows that this is not caused by the IMU.
Since I´m a little bitafraid to fly this plane until this "Problem" has been solved, I would be very glad for any help.

3691297840?profile=original

Bye,

Sven

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Replies

  • This happened to me, it wasn't as dramatic and I was moving the plane too, but it was scary due to the fact that I was about to launch the plane.

    I do have ARMING_REQUIRE=1 but it does not require GPS check, in tis case GPS had 3d fix.

    What would have happened if I launch the plane while FC is experiencing this instability?

    Thank you!

    Esteban

    3702248350?profile=original

    FBWA anomaly 3dfix.png

  • Developer

    This is a known problems with EKF2 when you start it with ARMING_REQUIRE=0 and without good GPS and mag data. Paul is working on a fix. I can give you a firmware to test if you would like to help with the testing.

    Meanwhile, always set ARMING_REQUIRE=1 and you will find it is more reliable.

    • Hi Tridge,

      thanks for your reply! When I understand you correct, this issue is "only" a bad initialisation of the EKF?

      I would like to help with testing, do you need my email?

      Bye,

      Sven

  • Here is the corresponding log file:
    https://www.dropbox.com/sh/58xjr9xavlsgy1p/AAC-KNwuldFeMgh_EvbIcL7Ra?dl=02

    Dropbox - Link not found
    Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Never email yourself a file again!
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