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    BMA400 FIFO Watermark Question

    Kmoore
    Established Member

    BMA400 FIFO Watermark Question

    Back on the BMA400 FIFO, and this might seem like a strange question but...

    When using the FIFO watermark feature of the BMA400 accelorometer, it does stop filling at the watermark? I pretty sure it does but, I can't quite provide it...

    Regards,

    Ken

    3 REPLIES 3
    Minhwan
    Community Moderator

    Re: BMA400 FIFO Watermark Question

    Hello Kmoore, 

     

    No, even though FIFO reaches to watermark level and you don't read FIFO, it can be overflowed. 

    Minhwan_0-1605747378196.png

    Please check FIFO part in datasheet. (P.30 ) 

    https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bma400-ds000.pdf

    Thanks, 

     

    BSTRobin
    Community Moderator

    Re: BMA400 FIFO Watermark Question

    Hello Kmoore,

    FIFO will be filled continuously. For example 50 Hz ODR, FIFO will be filled every 20 ms.

    Your could read out FIFO length value to check it.

     

    Kmoore
    Established Member

    Re: BMA400 FIFO Watermark Question

    That's what I figured. Alright thanks all.

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