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ILPS28QSW return incorrect values after transitioning between AH modes.

fz_gabriel
Associate

‎2024-09-03 12:03 PM - edited ‎2024-09-03 12:06 PM

Hi,

I'm working on a driver for the ST ILPS28QSW.
When I switch from Pressure to Qvar mode (using the CTRL_REG3.AH_QVAR_EN bit), I notice a brief transition problem: The first 3 samples read are invalid.
 
fz_gabriel_0-1725390060047.png

 

 


 
Please note that those incorrect samples are measured only when the STATUS.P_DA bit is set (therefore new pressure data should be generated).

Is there a way to know when the data is stable?
Is there a way to change between pressure and Qvar mode without reading those invalid samples?


Regards,
Gabriel



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