hard fault occurs on app_timer_start not able to get returned value

[Dhaval Dalvadi]

Hi,

        ret_val=app_timer_start(m_Reboot_id, APP_TIMER_TICKS(2*1000, APP_TIMER_PRESCALER), NULL);
        NRF_LOG_INFO("Test");

after app_timer_start it not self restarted or executed next line

I am using inside dfu bootloader app
SDk 12.3.0

Same code working in my application code

[Kenneth]

Have you tried to step into app_timer_start() to find where it is hanging? Have you checked that you have init the app_timer and started lfclk first? Can it be that you have an assert or hardfault?

Kenneth