High current comsumption when GPIO and BLE enabled on nRF5340-DK

RE: High current comsumption when GPIO and BLE enabled on nRF5340-DK

loquat — Mon, 03 Jul 2023 22:46:10 GMT

OK.Thanks.

RE: High current comsumption when GPIO and BLE enabled on nRF5340-DK

Kenneth — Mon, 03 Jul 2023 08:52:09 GMT

[quote user="loquat"]Why does the nRF5340-DK consume more current when using the GOIOTE IN event?[/quote]

The nRF5340 support two modes of GPIO IN event:
https://infocenter.nordicsemi.com/topic/ps_nrf5340/gpiote.html#register.LATENCY

The LowLatency require higher power than LowPower setting. Unfortunately it's not possible to use LowPower setting due to this errata:
https://infocenter.nordicsemi.com/topic/errata_nRF5340_Rev1/ERR/nRF5340/Rev1/latest/anomaly_340_153.html#anomaly_340_153

So this means you must instead use the pin sense mechanism for low power on the nRF5340:
https://infocenter.nordicsemi.com/topic/ps_nrf5340/gpio.html#unique_1968262651

Kenneth

RE: High current comsumption when GPIO and BLE enabled on nRF5340-DK

loquat — Sat, 01 Jul 2023 05:04:06 GMT

The state seems to have changed on its own.

Please give me an answer.

RE: High current comsumption when GPIO and BLE enabled on nRF5340-DK

loquat — Tue, 20 Jun 2023 23:40:58 GMT

When I tried it, the current consumption decreased.

But I have a question.
I did the same test with the "nRF52833-DK".
The result was 5.66mA average with or without the sense-edge-mask.

Why does the nRF5340-DK consume more current when using the GOIOTE IN event?

RE: High current comsumption when GPIO and BLE enabled on nRF5340-DK

Kenneth — Tue, 20 Jun 2023 09:56:44 GMT

Hello,

Make an overlay file with the following content:

&gpio0 {

sense-edge-mask = <0xFFFFFFFF>;

};

&gpio1 {

sense-edge-mask = <0xFFFFFFFF>;

};

Then the gpios will use the PORT event to wakeup instead of the IN event, the current is reduced that way.

Kenneth

RE: High current comsumption when GPIO and BLE enabled on nRF5340-DK

loquat — Mon, 19 Jun 2023 14:09:43 GMT

My test project

how to build and flash
-----------------------------------------------------------
cd scan_adv
mkdir build
cd build
cmake -GNinja -DBOARD=nrf5340dk_nrf5340_cpuapp ..
ninja
west flash --recover
-----------------------------------------------------------

modify main.c line 51
#if 0 -> disable GPIO
#if 1 -> enable GPIO

devzone.nordicsemi.com/.../2553.scan_5F00_adv.zip

RE: High current comsumption when GPIO and BLE enabled on nRF5340-DK

Kenneth — Mon, 19 Jun 2023 11:58:36 GMT

Hello,

Maybe you can share a project that we can compile in v2.4 where we just comment in and out the lines you want us to comment on?

Do you power cycle the board before measuring? Have you read:
Optimizing Power on nRF5340 SoC Designs

Kenneth