System ON mode: Bluetooth Event Wakeup: NRF52832

[NileshK]

HI All,

We are using NRF52832 for our project.

1) We are using System ON mode to put NRF52832 in to sleep mode. We are able to put NRF52832 in to sleep mode(System ON mode) successfully. Though current consumption in sleep mode is much higher ie 20mA. 

When sleep condition is satisfied we are calling the below API to enter into System ON mode. We are not turning off any peripherals explicitly. what is the typical current consumption in system ON mode and how do we achieve?

Pseudocode:

if(sleep_condition_satisfied)

{

    ChipEnterSystemONMode();

}

void ChipEnterSystemONMode(void)
{
     /*Enter System ON Mode*/
    sd_app_evt_wait();
}

2) Can we wake up the NRF52832 chip from sleep mode(System ON) using Bluetooth Event?

     If yes, how to wake it up?

    We are not able to wake up NRF52832 from sleep mode(System ON) using Bluetooth Event currently.  

    Do we have to prepare for Bluetooth wakeup before entering in to sleep mode.

Please send some example/sample code for the same.

Thank you.

[Simonr]

Hi

RTC can only wake up the nRF52 from system ON sleep mode, as the RTC is a peripheral in the nRF52, it will have to be ON for the RTC to run (and thus wake up the nRF).

You will have to put it in sleep "system ON" mode for this to be possible. Other than that this is possible to do. Depending on what you'd like to do I think one of the central applications should suit what you'd like to do, and then add the RTC sleep functionality to that.

Best regards,

Simon