Timer unable to start multiple instances of app timer

[Rommel]

Hi , 

I have been working on an example code in SDK : nRF5_SDK_17.0.2_d674dde\examples\ble_central_and_peripheral\experimental\ble_app_multirole_lesc\pca10040\s132\ses\

, So I wanted to create a repeated timeout based event to be  executed. So I created a the timer instance and started  the timer; however, the timeout even is not happening could you help me. 

I have provided the section fo the code where I have created the timer inside the main function. 

#define timer_ticks APP_TIMER_TICKS(3000)

APP_TIMER_DEF(mytimer_id);

////app_timer_id_t mytimer_id;
error_code = app_timer_create(&mytimer_id, APP_TIMER_MODE_REPEATED, timer_event_handler);
APP_ERROR_CHECK(error_code);
error_code = app_timer_start(&mytimer_id,timer_ticks,NULL);

The initilialization fo the timer is already done prior to this. 

[Jared]

Hi,

Where do you initialize the app_timer library by calling app_timer_init()?

regards

Jared 

[Rommel]

static void timer_init(void)
{ uint32_t error_code = NRF_SUCCESS;
ret_code_t err_code = app_timer_init();
APP_TIMER_DEF(mytimer_id);

////app_timer_id_t mytimer_id;
error_code = app_timer_create(&mytimer_id, APP_TIMER_MODE_REPEATED, timer_event_handler);
APP_ERROR_CHECK(error_code);
error_code = app_timer_start(&mytimer_id,timer_ticks,NULL);
APP_ERROR_CHECK(error_code);
printf("done initilaization of the timer");
}

timer_init() is called in main() 

[Jared]

Rommel said:

APP_TIMER_DEF(mytimer_id);

 This part should be done outside of the timer_init() scope. Try moving it outside of the function. 

[Rommel]

I have already tried the same for the implimentation. Even raised the interrupt priority fo the timer from default 6 to 0. Could you tell me how can I change the timing between 2 consecutiove advertisements. So that i can add that to the code and perform the testing

[Jared]

Hi,

The ble_app_hrs example shows how you can setup a timer while using the softdevice. You can try to compare your code with that example and see if you have initialized the module similarly.

Rommel said:

Even raised the interrupt priority fo the timer from default 6 to 0.

You should definitely NOT raise the interrupt priority to 0 while using the Softdevice, as it will hinder it to respect any time critical requirements.

regards
Jared