hello everyone, I need a low power product, so I am using nrf52840. There is a problem now, When I add "app_timer_init()"(I never change the code in this method) in my code, the current is about 450ua,and when I deleted this line,the current is about 7ua. Oh , I use the example "ble_app_pwr_profiling". why I cannot lower the power about the timer? Thanks.
that seems to be a current draw of the HFCLK and I am not sure why app_timer_init is starting the HFCLK!!!By any chance did you set the LFCLK to LFSYNTH??? it would then require the hfclk to start when starting RTC
Thank you for the answer. I already solved it. I forgot add "ble_stack_init()" in my test code.
great, thanks for informing us on what was missing.