About FDepr.1

FDepr.1 · 2021-02-23

Hello,I am using the LIS2DW12 accelerometer using Zephyr OS.Driver code is https://github.com/zephyrproject-rtos/zephyr/tree/master/drivers/sensor/lis2dw12 I configured the chip as follow: ODR is 12_5Hzlis2dw12_reset_set(ctx, PROPERTY_ENABLE); lis2dw...

FDepr.1 · 2021-03-03

I just checked, and it seems that the MCU had some pullup on the pins used for the irq. Now the consumption is fine :)Thanks for your support.

FDepr.1 · 2021-03-03

Hello Eleon,I now use lis2dw12_int_notification_set(ctx, LIS2DW12_INT_PULSED);To make sure the interrupt is not latched by setting LIR of CTRL3 to 0.It did not help the power consumption increase when we are in activity to inactivity state. I do not ...

FDepr.1 · 2021-03-03

Hello Eleon,I found part of the issue. It seems that there is a pin set to 1 when the device is inactive and which goes back to 0 when it is in activity.I updated the pin polarity using lis2dw12_pin_polarity_set(ctx, 1); which writes into the h_lac...

FDepr.1 · 2021-03-03

Hello Eleon,You can find the content of the register once everything is configured:ctrl1: 0x30ctrl2: 0xcctrl3: 0x0ctrl4: 0xe0ctrl5: 0x20035ac0ctrl6: 0x40ctrl7: 0x60int_dur: 0x0free_fall: 0x20029c00Let me know if you need other registers.Also, we upda...

FDepr.1 · 2021-02-25

Hello Eleon,We have 2 pullup resistors of 10kOhm, one on both lines of the I2C which are connected to the VCC_3V0.When we start, we do not have overconsumption, it seems that the accelerometer is in the ACTIVITY state and after the 41 seconds of INAC...

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LIS2DW12 activity/inactivity power consumption too high when inactive

Re: LIS2DW12 activity/inactivity power consumption too high when inactive

Re: LIS2DW12 activity/inactivity power consumption too high when inactive

Re: LIS2DW12 activity/inactivity power consumption too high when inactive

Re: LIS2DW12 activity/inactivity power consumption too high when inactive

Re: LIS2DW12 activity/inactivity power consumption too high when inactive