How to achieve low power mode < 10uA in nrf5340 ?

RE: How to achieve low power mode < 10uA in nrf5340 ?

Priyanka — Wed, 19 Jul 2023 13:27:07 GMT

Hi Vinod,

For low power consumption, you will need to disable serial logging. Enabling that can increase the consumption.

-Priyanka

vinodsdw — Tue, 18 Jul 2023 13:55:26 GMT

Hello,

I have an update,

without doing anything, after code cleanup and disabling serial driver I am able to achieve low power.

But at the moment when I make

CONFIG_SERIAL=y

It is taking atleast 1 mA of current in total.

vinodsdw — Tue, 18 Jul 2023 09:12:18 GMT

Hi, I heard that the zephyr will automatically put the device into sleep mode based on the rtos idle mode.

But what shall I do with the peripherals ?

If I forcefully do

pm_state_force(0u, &(struct pm_state_info){PM_STATE_SOFT_OFF, 0, 0});

Then my current consumption is going < 20uA which means my hardware connections are fine.

But if I do any k_msleep(2000) and not doing any other tasks or anything, then my current consumption is 4.5mA.

Any clue ? All peripherals are having low-power-enable tag in the pinctl

Priyanka — Mon, 17 Jul 2023 13:49:30 GMT

Hi Vinod,

Best Regards,

Priyanka