Create tasks of different priorities using task manager

[Mehulddj]

Hi,

I am beginner with NRF52840. I want to create a task scheduler using multiple tasks with different level of priorities that is low, medium and high. I am using SDK 17.1.

Please let me know if there is any example available and kindly provide the sample code.

Thanks

Mehul

[Einar Thorsrud]

Hi Mehul,

The nRF5 SDK include a scheduler that is used to transfer execution to the main loop, but it does not have any priorities. The only alternative that is shipped as part of the nRF5 SDK is to use FreeRTOS (which is demonstrated by the Heart Rate Application with FreeRTOS). You are also free to integrate another RTOS.

If you want an SDK with an integrated RTOS that is supported by us, you should look at the nRF Connect SDK, which includes Zephyr.

[Mehulddj]

Hi Einar,

Thanks for the reply.

We have checked the console ble example for task manager. But that example only contains task_manager_start() to start the idle task. We need to know how to use task_create() with multiple task creation and its task handling function.

Please provide the sample code.

Thanks

Mehul

[Einar Thorsrud]

Hi,

The task_manager library is an experimental library which is only used in an experimental sample (examples/ble_peripheral/experimental/ble_app_cli/). That shows how to crate tasks using task_create() etc indireclty by calling nrf_cli_task_create() which calls task_create(). I do not have any other code to share, and it is not widely used (in fact, I have never seen it used before other than that example).

If you want something more prooven while using the nRF5 SDK I would look at FreeRTOS.