eMD 6.12 Compass north changes

By johannbennett , 2 October 2017

I’m running the Embedded MotionDriver 6.12 software on a Cortex-M7 processor and communicating with a MPU-9250 via I2C. I’m using the DMP for the 6-axis fusion and the MPL to add in the compass data for 9-axis. For some reason after every startup and re calibration my 0 deg (north) is in a different direction.
Any idea's on what might be the problem? Any help will be appropriated.
Also, the documentation for the eMD 6.12 is really not very good. I found a API description document for the eMD5.1 which is amazing, but doesn't help anything with the eMD6.12.

Thanks
Johann

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