I have a custom board, with nrf5340, nrf7002 on it.
I would like to get the uA levels of power consumption I see other nrf5340 projects talk about (eg here How to achieve low power consumption on custom nRF5340 board. ) when my application is idle and the wifi is off (ie
net_if_down(net_if_get_default());
which gives same result as actually turning off the IOVDD control)
I read here Optimizing Power on nRF5340 SoC Designs that I need to just set
CONFIG_PM=y
CONFIG_PM_DEVICE=y
and it should enter the lowest power mode possible automatically..But this post and many others are all using old versions of NCS, and it seems the PM stuff has evolved?
On my Otii, the lowest power consumption I can see is about 4mA! This is with everything on my board held in reset or power off, and PM/PM_DEVICE enabled.
Any pointers on how to get the nrf5340 to actually go into a state where we are looking at <1mA (with RAM preservation)?