Freertos: app_timer_cnt_get and app_timer_cnt_diff_compute

[Sergy]

Is there implementation of these functions available for Freertos version of app_timer?

app_timer_cnt_get()

app_timer_cnt_diff_compute()

they are required for LESC operations.

Thanks!

[Joakim Jakobsen]

Hi. 

There is actually no need for those functions in FreeRTOS. 

Instead, you can use 

xTaskGetTickCount - which returns the count of ticks since vTaskStartScheduler was called.

(Ref: https://www.freertos.org/a00021.html#xTaskGetTickCount)

When using an RTOS, it is best to use RTOS features as much as possible. 

Best regards, 
Joakim

[ogulcan]

I came up on the same issue while using libuarte with FreeRTOS. Interesting to see that these two functions are not implemented already inside app_timer_freertos.c

One of the functions was given by Ali so I added the other one by copying from app_timer.c

Here you can find both of them:

uint32_t app_timer_cnt_get(void)
{
    return xTaskGetTickCount();
}

uint32_t app_timer_cnt_diff_compute(uint32_t   ticks_to,
                                    uint32_t   ticks_from)
{
    return ((ticks_to - ticks_from) & RTC_COUNTER_COUNTER_Msk);
}

You don't have to edit app_timer_freertos.c though. You can also define them in your main.c