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Hi Ashfaq

Actually Sample Alarm app is service based app. A time is set in the code, after that defined time alarm will fired automatically.

To check the alarm time in Sample app, go to

src --> data.c--> _initialize_ontime_alarm(void)

At the bottom of this function there is a variable named "t_alarm". In this variable alarm time is calculated. Here the value of three macros (ALARM_DELAY, ALARMS_INTERVAL, RECURRING_ALARMS_TO_BE_INVOKED) is defined at the top of the code, right after the structure declaration. Values of these macro are in SECONDS mode.

In sample app the value of the macros are big enough, that's why you can't  understand when the alarm is occured . So initialized that three macros with small value. For Example 

#define RECURRING_ALARMS_TO_BE_INVOKED 1 
#define ALARM_DELAY 1
#define ALARMS_INTERVAL 1.

Now run the sample app, you will see the alarm.

Hope this will help you.
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