Can we have wakeup recognition and single-tap recognition in the same time ?

[CSo.1]

To set the wakeup thershold, I use WAKE_UP_THS and for single-tap I use the same functions as the example (https://github.com/STMicroelectronics/STMems_Standard_C_drivers/blob/master/lis2dw12_STdC/example/lis2dw12_tap_single.c). Morever, I set 0x01100000 in CTRL4_INT1_PAD_CTRL, to enable wakeup and single tap interrupts. And when I do that, the bit SINGLE_TAP in STATUS is never at 1, but when I set 0x01000000, it works.

[niccolò]

Hi @CSo.1​ ,

maybe your threshold for the tap interrupt is too high?

you should try to modify it using registers TAP_THS_X/Y/Z (30h/31h/32h), as stated on page 17 of datasheet (https://www.st.com/resource/en/datasheet/lis2dw12.pdf)

Let me know if this helps,

Niccolò

[CSo.1]

Thank you for your answer.

When I only test the single-tap (passing CTRL4_INT1_PAD_CTRL at 0x01000000) it works, but when I want to have wakeup and single tap (passing CTRL4_INT1_PAD_CTRL at 0x01000000) I never have single-tap, only wakeup, and I havn't changed the threshold.

[niccolò]

Hi @CSo.1​ ,

can you provide the full register transcription?

I'm trying to reproduce the problem and I'd like to put me exactly in your situation.

Meanwhile, have you tried to change the INT_DUR (33h) values?

maybe there's something to tweak there.

Can I also ask you if the INT is latched or not?

Niccolò

[CSo.1]

Hi,

I have provided you a screenshot with the values of each register. I have interrupt when I move or tap the accelerometer, but when I see the status register I still have 0.

Cassandre