Bosch Sensortec Community

    cancel
    Showing results for 
    Search instead for 
    Did you mean: 

    BMA400 generic interrupt logical combination

    dsherman
    New Poster

    BMA400 generic interrupt logical combination

    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)
    0x00 = logical AND  << in reality, 0x01 requires AT LEAST ONE of the enabled axes to comply (logical OR/any)
     
    Can anyone confirm this?
     
     
    3 REPLIES 3
    BSTRobin
    Community Moderator

    Re: BMA400 generic interrupt logical combination

    Hello dsherman,

    There were example configuration for your reference.You could try it.

    Interrupt threshold reference X/Y/Z: ignored since reference update mode is selected for every time.

    GEN1 for any motion:

    GEN 1 for any-motion.png

    GEN2 for no motion:

    GEN 2 for no-motion.png

     

    dsherman
    New Poster

    Re: BMA400 generic interrupt logical combination

    "Every time" mode seems fine. 

    I am using "manual" and "one time" modes.  You try it and tell me what you see.

    dsherman_0-1632941148479.png

    "All Axes" : interrupt fires if X or Y is close to 0.

    "Any Axes" :  interrupt fires if X and Y are both close to 0.  

    These are backwards.

    BSTRobin
    Community Moderator

    Re: BMA400 generic interrupt logical combination

    Hello dsherman,

    What functions does your product need?

    Icon--AD-black-48x48Icon--address-consumer-data-black-48x48Icon--appointment-black-48x48Icon--back-left-black-48x48Icon--calendar-black-48x48Icon--center-alignedIcon--Checkbox-checkIcon--clock-black-48x48Icon--close-black-48x48Icon--compare-black-48x48Icon--confirmation-black-48x48Icon--dealer-details-black-48x48Icon--delete-black-48x48Icon--delivery-black-48x48Icon--down-black-48x48Icon--download-black-48x48Ic-OverlayAlertIcon--externallink-black-48x48Icon-Filledforward-right_adjustedIcon--grid-view-black-48x48IC_gd_Check-Circle170821_Icons_Community170823_Bosch_Icons170823_Bosch_Icons170821_Icons_CommunityIC-logout170821_Icons_Community170825_Bosch_Icons170821_Icons_CommunityIC-shopping-cart2170821_Icons_CommunityIC-upIC_UserIcon--imageIcon--info-i-black-48x48Icon--left-alignedIcon--Less-minimize-black-48x48Icon-FilledIcon--List-Check-grennIcon--List-Check-blackIcon--List-Cross-blackIcon--list-view-mobile-black-48x48Icon--list-view-black-48x48Icon--More-Maximize-black-48x48Icon--my-product-black-48x48Icon--newsletter-black-48x48Icon--payment-black-48x48Icon--print-black-48x48Icon--promotion-black-48x48Icon--registration-black-48x48Icon--Reset-black-48x48Icon--right-alignedshare-circle1Icon--share-black-48x48Icon--shopping-bag-black-48x48Icon-shopping-cartIcon--start-play-black-48x48Icon--store-locator-black-48x48Ic-OverlayAlertIcon--summary-black-48x48tumblrIcon-FilledvineIc-OverlayAlertwhishlist