How can I generate 7 sec delay using app timer in SDK_13 ?

[kevin]

I am new in the nRF52832 controller so help me for coding of my question. any help will be appreciated. thank you.

[shibshab]

Havent tested this, but it should work

#include "app_timer.h"
#include "app_error.h"
#define TICKS_7_SECONDS APP_TIMER_TICKS(7000)

APP_TIMER_DEF(my_timer);

static void my_timer_timeout_handler(void * p_context)
{
    // 7 seconds passed. 
    // Do something
}

int main(void)
{
    
    uint32_t err_code = app_timer_init();
    APP_ERROR_CHECK(err_code);
    
    err_code = app_timer_create(&my_timer, APP_TIMER_MODE_SINGLE_SHOT, my_timer_timeout_handler);
    APP_ERROR_CHECK(err_code);
    
    err_code = app_timer_start(my_timer, TICKS_7_SECONDS, NULL);
    APP_ERROR_CHECK(err_code);
    
    for(;;)
    {
        // Busy waiting
    }
    return 0;
}

[shibshab]

Check the example located here: nRF5_SDK_13.0.0_04a0bfd\examples\peripheral\timer It does what you want.

[kevin]

hi, shibshab ! I have done this only using application timer, not timer so you can help me.means I can control the timer globally for led controlling (ex: 1s,2s etc). so you can plz help me with the coding. because I am new so problem facing during implement the timer in code so I need help.

[ovrebekk]

If you mean you need to use a TIMER module, you could have a look at this example on Github.

It was written for the nRF51, but the TIMER modules in the nRF52 are identical.

Best regards