Current measurements with power modes on nrf52

RE: Current measurements with power modes on nrf52

Stian Røed Hafskjold — Wed, 16 Mar 2016 15:17:44 GMT

Please see my answer here: devzone.nordicsemi.com/.../

RE: Current measurements with power modes on nrf52

Stefan Birnir Sverrisson — Tue, 15 Mar 2016 16:36:08 GMT

Hi Lakerno

What is the issue exactly, high current consumption or the example not working?

If you have PCA10040 0.9.0 with Engineering B chip, you should use softdevice and SDK example that is compatible with Engineering B, see the nRF52 compatibility matrix

RE: Current measurements with power modes on nrf52

Lakerno — Mon, 14 Mar 2016 15:01:53 GMT

DId you manage to solve this? Have the same issue

RE: Current measurements with power modes on nrf52

Manuel55 — Thu, 05 Nov 2015 11:50:27 GMT

Hi, Thanks for your answer. I tried to load the Power profiling application on the new nRF52 board but it seems not to work propperly. If I start it with the debugger, it works fine but when I start it with USB power or with battery, it doesn't work.

It seems like it never leaves the following sleep mode, even if I press the buttons:

if (!is_notification_mode && !is_non_connectable_mode) { // The startup was not because of button presses. This is the first start. // Go into System-Off mode. Button presses will wake the chip up. err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code); }

I tried the same application on the old nRF52 board revA and it works fine. I can't figure out how to make this running on the new board for doing some current measurements.

Best Regards

RE: Current measurements with power modes on nrf52

Petter Myhre — Wed, 04 Nov 2015 11:25:37 GMT

You can have a look at the Measure current consumption Section in this tutorial, it is for the nRF51, but it shouldn't be too hard to port the examples.

How to measure current is described here. It can be a bit tricky to do it, please see this and this.