Bosch Sensortec Community

    SOLVED

    BMX160 driver

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    Member

    Re: BMX160 driver

    Just wanted to chime back in with my solution.  I scoped my comm lines and saw that the delay function that I was providing the drivers was not accurate. Therefore the timing between some calls was not according to the datasheet. When I corrected the delay function, the communication problems with the BMM resolved.

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    Community Moderator
    Community Moderator

    Re: BMX160 driver

    Great to hear you solved your issue !

    We definitely recommend a logic analyzer in every electrical engineer's toolbox.
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    New Poster

    Re: BMX160 driver

    Hello,

    I have a similar problem but a good delay function doesn't seem to fix it. I'm never able to get an acknowledge bit when calling slave address 0x10.

    Does anyone else know what I can try?

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    New Poster

    Re: BMX160 driver

    The first I²C write in the included screenshot wasn't shown correct, It was 0x7E - 0x19, not 0x7F - 0x0C.

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    New Poster

    Re: BMX160 driver

    It's working now. I tried to access the BMM150 directly instead of via the bmi160_aux_write() in the wrapper function.

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