What happens if handlers are called at the same time? (nrf51422)

[Yi, Changjae]

Hi,

I am new to firmware engineering. I have a simple and basic question.

If there's Timer A and B, and both interval is 100ms, what happens to the timeout handler functions? If both timers start at the same time then also the predefined timeout handler functions will be called at every same, right? If it's right, how does nrf51422(s130) handle this situation? Does it runs only one handler? Or both?

define A_TIMER_INTERVAL APP_TIMER_TICKS(100,APP_TIMER_PRESCALER)

define B_TIMER_INTERVAL APP_TIMER_TICKS(100,APP_TIMER_PRESCALER)

APP_TIMER_DEF(A_timer_id);

APP_TIMER_DEF(B_timer_id);

static void A_timeout_handler(void * p_context) {/* some codes */}

static void B_timeout_handler(void * p_context) {/* some codes */}

app_timer_create(&A_timer_id,APP_TIMER_MODE_REPEATED,A_timeout_handler);

app_timer_create(&B_timer_id,APP_TIMER_MODE_REPEATED,B_timeout_handler);

app_timer_start(A_timer_id,A_TIMER_INTERVAL,NULL);

app_timer_start(B_timer_id,B_TIMER_INTERVAL,NULL);

[RK]

They're totally independent timers. You start them, the start functions return immediately, the timers run from the time they were started. So the led blinks every 100ms and after 50ms absolutly nothing happens.

[Yi, Changjae]

define A_TIMER_INTERVAL APP_TIMER_TICKS(10000,APP_TIMER_PRESCALER) //interval: 10 sec

define B_TIMER_INTERVAL APP_TIMER_TICKS(10000,APP_TIMER_PRESCALER) //interval: 10 sec

static void A_timeout_handler(void * p_context) {play_music_for_5s();}

static void B_timeout_handler(void * p_context) {led_glowing_for_5s();}

app_timer_start(A_timer_id,A_TIMER_INTERVAL,NULL);

app_timer_start(B_timer_id,B_TIMER_INTERVAL,NULL);

If I want to make a device play a song while led is glowing for 5 seconds and repeating it every 10 second will this code work fine?