NFRF52 NFC SENSE MODE Interrupt

[Puneeth]

Hello Everyone, I want to use NFC on nrf52 DK to wake up the board from System off. Is there any examples similar to this situation where I can learn more about NFC and Sense mode? I am using Softdevice s132. I am enabling Sense mode using

NRF_NFCT->TASKS_SENSE = 1;

as soon as I enter main like

int main(void)
{
    uint32_t err_code;
	NRF_NFCT->TASKS_SENSE = 1;
   

    timers_init();`

I am new to Nordic board as well as NFC so please bear with my silly questions.

[Øyvind Karlsen]

Hi,

In SDK 11 we have an experimental example ble_app_hrs_pairing_nfc that will enter system off and start as soon as it senses a NFC field. The documentation for this example can be found here.

Best regards,

Øyvind

[Tony Garland]

Hi Øyvind,

Is there an example which shows how to set up the NFC sense to wake up from power off which does not require the use of the NFC library? (Or--are the sources for the NFC library available for perusal?)

Thanks

[flip-flop]

I see this is a very old question but maybe it's still valid. Anyway, I use the same configuration as you. In the main function, I set:

NRF_NFCT->TASKS_SENSE = 1;

and after that simple timer that calls:

NRF_POWER->SYSTEMOFF = 1;

to enter SYSTEMOFF mode. And that works perfectly for me.

Regards.