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LMatt.4
LMatt.4
Associate
February 17, 2023
Solved

LPS22HB SPI interface

Hi

Has nobody used the sensor using SPI interface? I have a power up issue, if CS is left floating till processor drive it to zero it seems device start as i2C and micro Dout is shorted to ground.

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    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    February 17, 2023

    Welcome, @Community member​, to the community!

    If you control the LPS22HB via SPI, you should fix CS to GND in your special case via a pull-down of e.g. 10k, so that CS cannot float.

    Regards

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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    3 replies

    Peter BENSCH
    Peter BENSCHBest answer
    ST Technical Moderator
    February 17, 2023

    Welcome, @Community member​, to the community!

    If you control the LPS22HB via SPI, you should fix CS to GND in your special case via a pull-down of e.g. 10k, so that CS cannot float.

    Regards

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
    LMatt.4
    LMatt.4Author
    Associate
    February 17, 2023

    Hi Peter

    Thanks for your replay, this fix the problem.

    Regards

    Peter BENSCH
    Peter BENSCH
    ST Technical Moderator
    February 17, 2023

    Great!

    If the problem is solved, please mark this thread as answered by selecting Select as best, as also explained here. This will help other users find that answer faster.

    Regards

    /Peter

    In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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