Our board is based on nRF52833, using SDK 2.1.2, Zephyr 3.1.99
Project is configured to enter low power mode for both CPU and peripherals
CONFIG_PM=y
CONFIG_PM_DEVICE=y
Our Zephyr application contains a timer that fires up every 5 min and performs certain activity (including advertising BLE)
I'd expect that timer event (interrupt) would wake device up from low power mode
Unfortunately sometimes it doesn't.
Occasionally we discover devices that are "frozen" and stay in low power mode until GPIO interrupt, which ALWAYS causes device to wake up.
The problem is that I can't rely on this GPIO interrupt to happen periodically enough, timer is my last line of defense.
When I set breakpoint int he debugger, after waking up, I'm always at next instruction after WFI (low power mode Wait for interrupt)
I'm wondering if timer interrupt is not configured properly in the device tree somewhere...
