app_timer not working without softdevice

[Alex]

I am working wih  \nrf5_sdk_17.1.0_ddde560\examples\802_15_4\wireless_uart\secure\first\

And I want to add app timer to start a peroid works.

unfortunately， this timer not worked.  

Hope need your help. 

[Vidar Berg]

Hello,

Do you get an error if you uncomment the app_timer_start() function in main()? 

Best regards,

Vidar

[Alex]

APP_TIMER_DEF(app_timer_id);
static void mg_app_timeout_handler(void *p_context)
{
	NRF_LOG_INFO("mg_app_timeout_handler.");
}

/**
 * @brief Function for application main entry.
 */
int main(void)
{
    ral_irq_handler_import();
    APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
    NRF_LOG_DEFAULT_BACKENDS_INIT();
    NRF_LOG_INFO("Wireless UART example started.");
		
    app_task_init();
    sys_task_post(APP_TASK_ID);
		
   //clock_init();
	 APP_ERROR_CHECK(app_timer_init());
	mg_nrf_scheduler_init();
	
    mg_app_button_init();
	
		APP_ERROR_CHECK(app_timer_create(&app_timer_id, APP_TIMER_MODE_REPEATED,
                                   mg_app_timeout_handler));
		APP_ERROR_CHECK(app_timer_start(app_timer_id, APP_TIMER_TICKS(1000), NULL));
    while (true)
    {
#if APP_SCHEDULER_ENABLED
      app_sched_execute();
#endif
        sys_task_run();
    }
}

I'm sorry, this is the correct code, there's no errors.

[Vidar Berg]

Why have you commented the clock_init() function? The app_timer will not work unless the 32KHz LF clock is running.

[Alex]

Thank you, you are right