LIS2DUXS12: Switch from Ultra Low Power to High-Performance when using FSM

[BD651]

Hi,

looking in the AN5902 Finite State Machine application note for LIS2DUXS12, rev 3 on page 47, it is mentioned that using the Adaptive self-configuration (ASC) it is possible to switch from Ultra Low Power mode to High-Performance mode. 

However, in the AN58012 application note for LIS2DUXS12, rev 3 page 15, it says that it is not possible to directly switch from Ultra Low Power mode to High-Performance without setting the accelerometer to power-down mode.

What is correct, is the ASC example in the AN5902 application note really possible to do?

Also, a second question. If TI3 = 125 samples and the ODR is 100Hz, wouldn't that mean 1.25s? In the example it says 5 seconds but that will only be true if ODR is 25Hz, right?

[Federica Bossi · Accepted solution]

Hi @BD651 ,

Thank you for notice us this discrepancy between the two AN versions, I confirm you that you can't switch from ultra low power to high performance when in FSM, we will review the latest version of AN.

Regarding your second question: yes, the ODR of that example is 25Hz 🙂

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