Hi! Firstly I am somewhat new to developing on nordic chips so I'd like to apologise in advance or any silly mistakes or oversights I may have made.
I am currently working with a XIAO NRF5280 BLE board and trying to program it using Zephyr & NRF Connect SDK on vscode. I am able to get basic examples running - like the blinky for example and writing to the board is generally fine.
The problem I am having is that I am unable to get the board to enter into a light system on sleep mode. I am attempting to enter into system on sleep using the k_sleep() / k_msleep for n number of seconds and from my understanding, this should automatically suspend the current thread and enter into the idle thread- thereby triggering system on sleep. However with blinky, when I attempt to toggle the boards sleep mode with led on vs led off, I measure a current draw of aroun 0.8 mA with the LED on and approx 0.18 mA when the LED is off.
This in theory should be lower according to documentation, effectiely I am targeting a number sub 100 micro - ideally lower when the LED is off. I have read a number of other questions and answers posted and while I have managed to get the board operating at generally low power (0.8 mA when active) I cannot get below 0.18 mA. UART, console, logging is disabled already.
In my proj.conf file one interesting thing that I noticed is that despite setting CONFIG_PM=y it remains set to n in the build. According to vscode a few dependecies are missing but I am unsure how I should correct this. Any advice or guidance would be greatly appreciated.
