Questions on internal temperature module in nrf52832

RE: Questions on internal temperature module in nrf52832

will — Wed, 11 Jul 2018 16:11:23 GMT

Excellent! Thanks; this answers my questions. I should always read the errata first before asking these questions so sorry I did not do that. Would probably have answered my question for me.

RE: Questions on internal temperature module in nrf52832

Susheel Nuguru — Wed, 11 Jul 2018 11:53:14 GMT

Hi Will,

1) Yes, Each chip is calibrated individually on some properties and the temperature module comes under this category. Based on its internal characteristics, the factory tools program the FICR->TEMP register to bring the module behave linear to the specifications. When the chip is powered up then these FICR values are loaded into TEMP registers.

2) Due to a hardware bug, they are not automatically loaded into TEMP registers, this is documented in the ERRATA 66

3) Not sure what you mean here, the TEMP module uses the values in the NRF_TEMP.registers and not the values in the FICR. Since the FICR values are not loaded automatically, due to the documented bug, appication should manually load these values. So in a way app is controlling whether to use those calibration values in FICR or not.

RE: Questions on internal temperature module in nrf52832

will — Tue, 10 Jul 2018 16:31:19 GMT

Sure np. Site has changed a bit since I last posted. Does anyone have any answers? :-)

RE: Questions on internal temperature module in nrf52832

esivertsen — Tue, 10 Jul 2018 13:05:08 GMT

Moved this thread to Nordic Q&A.. :-)

Cheeers,
Eivind

RE: Questions on internal temperature module in nrf52832

Martin Lesund — Tue, 10 Jul 2018 12:52:18 GMT

Hi Will,

Please use the "Nordic Q&A" for technical questions.

"Backstage" is meant for questions regarding the DevZone forum itself.

Best Regards,

Martin L.