How can i know the run-time. plz help me

[junny]

Hello, i study the cryption. First, I'm not good at english...

I use keil uvision4, nrf51822, s110 softdevice I need check the run-time. how can i check the runtime.

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like c language....

start_time=clock();

some functions . .

end_time=clock();

run_time=end_time-start_time;

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like Arduion sketch....

start_time=millis();

some functions . .

end_time=millis();

run_time=end_time-start_time;

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plz give me a hand.....

[Inspectron]

You would like to know how long was "some function" activ?

[Lalit Kumar]

uint32_t time1;
uint32_t time2;
uint32_t time_diff;
app_timer_cnt_get(&time1);
{ Code }
app_timer_cnt_get(&time2);
app_timer_cnt_diff_compute(&time_diff);

If all values are zero, that means rtc is not running. A workaround is to run a dummy timer. If you are using SDK12, set APP_TIMER_KEEPS_RTC_ACTIVE to 1 in sdk_config.h.

[Wojtek]

Depends of the time you want to measure, use Timer or RTC or just toggle GPIO and analyze on oscilloscope...

[junny]

thank you very much

[Vishnu Pradeep]

can you share a sample code of this work around? @Lalit Kumar