Purpose of app_timer in NRF CLI library/example

[Tim Adu]

Hello,

I am experimenting with the NRF CLI example (brilliant feature). I would like to integrate it with my project, which uses FreeRTOS.
I've read a few threads that suggest that it is quite difficult to integrate the CLI library with FreeRTOS (mostly because of the timer implementations).

However I noticed in the CLI library documentation (https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.2.0/lib_cli.html#) that no timer is used.

My question is, what is the purpose of the app_timer in the NRF CLI example? Can the CLI library be used without the timer?

Thanks.

[Duy]

If I were you, I would tried to modify the code, remove the app_timer to see if it would run. 

Another point I would like to show you, please read the definition off all the functions inside this function, you would find the answer.

Regards,

    Duy

static void buttons_leds_init(bool * p_erase_bonds)
{
    bsp_event_t startup_event;

    APP_ERROR_CHECK(bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler));

    APP_ERROR_CHECK(bsp_btn_ble_init(NULL, &startup_event));

    *p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}

[Jørgen Holmefjord]

Hi,

app_timer is used for running a second counter. The timer can be started/stopped/reset through CLI commands. 

The timer library is not used within the CLI library, if you implement different commands, you can leave out the timer.

Best regards,
Jørgen

[Tim Adu]

Perfect! Thanks!

[Tim Adu]

I've spent a few days on this and realized that the CLI library does in fact use a timer. I finally managed to make the CLI work perfectly alongside FreeRTOS. I'd like to write a blog post to share my solution. Where/how can I do this?
Thanks

[Min-Ching Ho]

Hi TimothyA,

    Could you please kindly share how you did it? 

Thank you,

Min-Ching