Is there a way for scheduling tasks on STM32L031?

noobmaster69 · ‎2022-05-01

Is there any task schedular for STM32? I want a bare metal task schedular for scheduling tasks so I wanted to know if there is any existing task schedular in libraries like nordic has in its SDK. If not any recommendations?

The main reason I want schedular is because I have multiple applications running on STM32L031K6 for eg: UART, EEPROM operations, IO control etc. And I want to schedule those tasks as the are occured.

gbm · ‎2022-05-02

FreeRTOS, also available in CubeIDE.

noobmaster69 · ‎2022-05-02

There is no other option? Like basic schedular (queue) in HAL libraries?

Piranha · ‎2022-05-02

No, HAL is only a driver library and a broken, bloated and practically useless anyway. ST has a scheduler in a STM32CubeWB/WL packages, which they call a "sequencer" and a "timer". Both are described in AN5289 section 4.

Also check out these and some others:

https://github.com/cocoOS/cocoOS

https://github.com/arkhipenko/TaskScheduler

By the way, I looked at those:

https://devzone.nordicsemi.com/f/nordic-q-a/63209/nrf-sdk-scheduler-vs-task-manager

Do they really not provide a software timers at all?

Personally I didn't found any that meets my requirements and wrote my own. Of course, a better one... 😊

noobmaster69 · ‎2022-05-03

Hii, thanks for your reply. I saw sequencer you shared and it wouldnt work for me as it takes functions which have zero arguements as in (void)(* task)(void) but for my applications I need to pass two arguements event_data and event_size where event_data is an array and event_size is size of the array. (void)(* task)(void*, uint16_t) is the format I need. So, is there any other option for this?

Piranha · ‎2022-05-03

You can pass any other data through global variables or other constructions and send an event to the task, which signals the necessity to process that data.

Pavel A. · ‎2022-05-03

STM32L031 has only 8K RAM and 32K flash.

Not comfortable for FreeRTOS. Maybe only the co-routine variant.

noobmaster69 · ‎2022-05-09

Hi. For the timer you shared, does this timer server works on systick? or something else?