nrf52832 nfc high consumption

[vea45]

Hi,

after reading the NFC with an smartphone the power consumption stays very high without doing anything else...

I don't know if this is related to this bug: "NFCT does not release HFCLK when switching from ACTVATED to SENSE mode."

I'm using the nrf52832 version 1 and the S132 2.0.

Thank you!

[Stian Røed Hafskjold]

Yes this is related to the bug you referred to. You need to define HAL_NFC_ENGINEERING_BC_FTPAN_WORKAROUND in your project. Now the hal_nfc_field_check() function will be called when the field is lost and reset the NFCT module. If the NFCT is not reset the HFCLK will continue to run and draw current.

Please read this