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Explorer
August 28, 2024
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Are LIS2DW12 registers non-volatile?

  • August 28, 2024
  • 1 reply
  • 860 views

I want to setup the wakeup configuration registers and then disconnect the accelerometer from an I2C programmer and power source. When the accelerometer is placed with the new circuit, will the configurations in the register I have set still remain? The datasheet does not mention non-volatile memory on registers.

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    Best answer by Peter BENSCH

    Only the factory-calibrated calibration coefficients are located in non-volatile memory. The registers are all RAM based and therefore volatile.

    Does it answer your question?

    Regards
    /Peter

    1 reply

    Technical Moderator
    August 28, 2024

    Only the factory-calibrated calibration coefficients are located in non-volatile memory. The registers are all RAM based and therefore volatile.

    Does it answer your question?

    Regards
    /Peter

    Lab1trAuthor
    Explorer
    August 28, 2024

    Thats unfortunate then. Do you recommend any ST alternatives that do have non-volatile memory on registers?

    Technical Moderator
    August 28, 2024

    I am not aware of any alternative sensors that realise registers as NVM. This means that a small MCU is always required to feed the registers during power-up.