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    BMA400 generic interrupt logical combination

    BMA400 generic interrupt logical combination

    dsherman
    Member
    Is the BMA400 datasheet wrong about the GEN1 / GEN2 logical combination bit?
     
    When I experiment with the BMA400 shuttle board and Development Desktop 2.0, I find these inconsistencies:
     
    Register 0x40, page 86, and 0x4B, page 92
    gen1/2_comb_sel:
    0x00 = logical OR    << in reality, 0x00 requires ALL enabled axes to comply (logical AND/all)
    0x01 = logical AND  << in reality, 0x01 requires AT LEAST ONE of the enabled axes to comply (logical OR/any)
     
    Can anyone confirm this?
     
    [edit :  After updating my Development Board firmware, this issue is now corrected. ]
    6 REPLIES 6

    BSTRobin
    Community Moderator
    Community Moderator

    Hello dsherman,

    How to configure registers is related to the application scenario, I mean I need to know what use case you want to test for your previous sensor config in your picture? Any motion, high-g or others? Could you give detailed description?

    Hi Robin,

    After putting this away for a few years, and then updating my Desktop Development firmware, this seems to be fixed.  Or maybe I was just being stupid in 2021, and I've obtained more wisdom in the years since then.  Anyhoo, thanks for your help.

     

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