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    BMI270 Motionless SENS Error Compensation (Re-Trimming CRT) - value location?

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    BMI270 Motionless SENS Error Compensation (Re-Trimming CRT) - value location?

    Hi,
    Where are the compensation values are placed after a successful CRT run? I ask in order to:
    1) Prove CRT did something (I'd print the values in our debug log)
    2) At power on show NVM has restored them

    And is there any register setting I need to do to instruct the gyro to use the CRT values?  I ask because "Manual SENS Error Compensation" lists a bunch of steps, but I don't see anything for the "automatic" one.

    BTW - I am are using my own driver and appeared to keep getting "precon" error until I disabled the FIFO. The steps to perform CRT listed in BST-BMI270-DS000-02 Revision_1.0_05 2019 forget to mention this.

    Thanks!
    Richard.

    1 REPLY 1
    Community Moderator

    Re: BMI270 Motionless SENS Error Compensation (Re-Trimming CRT) - value location?

    You can check register 0x78 / 79 / 7A.  the default value is 0.  but after you perform CRT correctly, there will be non-zero value in these registers.

    After CRT, the corrected sensitivity value will be automatically used by gyro data output,  you don't need to trigger it.

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