Andrew Tridgell ff37fde6f1 AP_Compass: AF9838: set rotation after registering the compass
The constructor called set_rotation() before register_compass() had
assigned the backend instance, so it wrote the rotation of compass
instance 0. Every AF9838 probe on an external bus constructs a backend,
so on boards without an AF9838 each failed probe cleared the rotation
of whichever compass was already registered as instance 0. An external
IST8310 lost its PITCH_180 rotation this way.
2026-09-04 20:39:10 +10:00
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2026-09-02 12:32:52 +09:00
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ArduPilot is the most advanced, full-featured, and reliable open source autopilot software available. It has been under development since 2010 by a diverse team of professional engineers, computer scientists, and community contributors. Our autopilot software is capable of controlling almost any vehicle system imaginable, from conventional airplanes, quad planes, multi-rotors, and helicopters to rovers, boats, balance bots, and even submarines. It is continually being expanded to provide support for new emerging vehicle types.

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