QuadPlane "PreArm: AHRS EKF3 not started"

Hi,

I am testing a new tailsitter design and for the maiden flight I try to fly with QSTABILIZE mode. I need to test without GPS and compass since I am flying indoors and compass is not installed yet. According to documentation this is do-able.

So I use the following arming checks, but I get “PreArm: AHRS EKF3 not started”.
image

I have tried the following to disable GPS and compass:

  • COMPASS_ENABLE = 0
  • GPS_TYPE = 0
  • AHRS_GPS_USE
  • FENCE_ENABLE = 0
  • GPS_AUTO_CONFIG = 0
    I even tried:
  • EK3_SRC1_POSXY = 0
  • EK3_SRC1_VELXY = 0

I am using latest Plane stable firmware.

Still not arming. I saw this issue in other threads as well, but it is not clear how to approach this. Is it possible that without GPS, pre-arm check for INS can not be successful?

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