NRF9160 power consumption minimization for simplest case

RE: NRF9160 power consumption minimization for simplest case

Håkon Alseth — Wed, 19 Jun 2019 16:56:35 GMT

Always happy to help! Glad to hear it worked out 🙂

Cheers,

Håkon

RE: NRF9160 power consumption minimization for simplest case

GJSea — Wed, 19 Jun 2019 16:55:43 GMT

Hi Hakon,

Yes CONFIG_SERIAL=n in SPM prj.conf was the solution, I'm now at about 7uA!!

Thanks so much!

RE: NRF9160 power consumption minimization for simplest case

Håkon Alseth — Wed, 19 Jun 2019 10:32:06 GMT

Hi,

There's a blog post regarding measuring current consumption with PSM here, which also includes configuration settings on the non-secure and secure side:

https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/hardware-design/posts/measuring-psm-idle-current-on-the-nrf91-dk

Have you ensured that the samples/nrf9160/spm/prj.conf file includes "CONFIG_SERIAL=n" ? If not, it will keep the UART running, thus raising the sleep current consumption.

Kind regards,

Håkon