SDK15.2: impact of NRF_SDH_CLOCK_LF_RC_* setup on performance

[rgrr2]

Hello

I'm currently struggling with the LF_RC setup in sdk_config.h.

Calibration of the internal LF clock can be parameterized thru NRF_SDH_CLOCK_LF_RC_CTIV and NRF_SDH_CLOCK_LF_RC_TEMP_CTIV.

Does anybody has already done measurements about current vs. parameters?  Nordic?  Also: is there any other impact due to these parameters (throughput etc)?

Regards

Hardy

[rgrr2]

Thanks for your effort.  No problem waiting til monday, and... not just current is of interest, also timing.

Have a nice weekend.

[Simon]

I have talked to the guy, and got some answers.

The calibration timer does not use any extra current since it is based on the LFRC, which is running anyways. However, during the calibration process, which usually happens every 8 seconds, the HFCLK is used and the current consumption increases. Take a look at this thread, which goes through the main factors affecting the current consumption when using the LFRC (including the calibration process).

Best regards,

Simon

[rgrr2]

Many thanks for your answer.  Especially the referenced thread is very helpful.

Kind regards

Hardy