This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

nRF9160 lowest power with RTC running

Hi

I try to run a nRF9160 on a nRF9160DK with lowest power possible.

A wake up from pin and periodically from RTC is required.

In the  nRF9160_PS_v2.0.pdf is IMCUON1 MCU on IDLE, modem off, RTC on 2.2 μA

When I run nrf_regulators_system_off(NRF_REGULATORS_NS); 

Current is ok 2-3uA

Wake up with PIN works

Wake up from RTC does not work.

When I run __WFI();

Current is not ok 10-12uA

Wake up with PIN works.

How to setup nRF9160 for IMCUON1 MCU on IDLE, modem off, RTC on 2.2 μA

with wake up from PIN and RTC?

Parents
  • Wake up from RTC does not work.

    When I run __WFI();

    Current is not ok 10-12uA

    If you make a very simple main() that only use k_sleep(), then that uses the RTC in the background, so this should be power optimized. What current consumption do you measure then?

    I would think that the current consumption problem with "10-12uA" is that you have not configured wakeup on pin correct, you should configure to use "sense" wakeup from lowest power consumption, I suspect you have configured "in event" for wakeup from sleep. Using "in event" will have higher current consumption:
    https://infocenter.nordicsemi.com/topic/ps_nrf9160/gpiote.html

  • Hi Kenneth

    Now I've an working sample to wakeup from pin and rtc.

    the current consumption on the dk is 2-3uA.

    So every thing is OK

    Thanks.

    BTW.

    It would be helpful if there is a sample in nRF connect SDK for this situation.

Reply Children
No Data
Related