LIS2DW does not work properly

Hi,

I am using nRF52805 with LIS2DW.

LIS2DW is connected to nRF52805 with general GPIO, not I2C port.

I am emulating GPIO to I2C protocol.

SDA and SCL pin is pull-up to 100K resistors.

After initializing LIS2DW, no need to use I2C bus.

But, in this case, some current is consumed thru pull-up resister.

I want to reduce the current consumption below 10uA when nRF52832 is in sleep state.

To reduce the leakage current thru pull-up resister, I find current is lower than output mode.

But, in this state, LIS2DW can not generate INT1 interrupt.

I re-config the SDA and SCL to output mode, LIS2DW is still not working properly, no generating INT1 signal.

Thank you in advanced

Paul

What is problem?

This topic has been closed for replies.

Visitor II

I checked no INT1 by oscilloscope

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