CCS/TM4C1290NCPDT: what is priority order for the task ?

Sergey uskach

Part Number: TM4C1290NCPDT

Tool/software: Code Composer Studio

Hi If i created task with default priority which is turned out to be 1 i can see this task is run, but I specify priority of the same task 6 it is not running.

I is created fro tcp recv task with priority 6 , id this newly created task have same priority it does not have a chance to run.

It looks like task with lower priority number have chance to run.

Is priority 1 is gretaer that 6 ?

If there are the way for me to create tasks which have same priority ( round robin ) with minimum time slice to run.

over 5 years ago

0 ToddMullanix over 5 years ago

TI__Guru* 96960 points

Sergey,

Low numbers mean low priorities. Idle has priority 0. The next lowest priority is 1 and so on.

Regarding round robin: this can be accomplished. Please refer to https://e2e.ti.com/support/legacy_forums/embedded/tirtos/f/355/t/227347

Sergey uskach said:
If i created task with default priority which is turned out to be 1 i can see this task is run, but I specify priority of the same task 6 it is not running.

If this is the case, something is wrong with your setup. TI-RTOS is by default a preemptive RTOS, so the highest ready thread will run.

Todd

0 Sergey uskach over 5 years ago in reply to ToddMullanix

Intellectual 690 points

What about priority?

Which one is greater 1 or 6 ?

Why in my case task with priority was able to run but wit 6 could not on the same system?

0 ToddMullanix over 5 years ago in reply to Sergey uskach

TI__Guru* 96960 points

Lower numbers mean lower priority. Therefore priority 1 is lower than priority 6.

I'm not sure why it is not running? Do you set a breakpoint in the entry function for the task? Does it hit it?

Todd

0 Sergey uskach over 5 years ago in reply to ToddMullanix

Intellectual 690 points

Hi Todd:

I put log message for console when I entering my task and I do not the message .

0 ToddMullanix over 5 years ago in reply to Sergey uskach

TI__Guru* 96960 points

And you get this log message when you have it priority 1?

0 Sergey uskach over 5 years ago in reply to ToddMullanix

Intellectual 690 points

yes

0 ToddMullanix over 5 years ago in reply to Sergey uskach

TI__Guru* 96960 points

Check the return from Task_create (or Task_construct...whichever one you are using)? Did it succeed? Look in ROV->Tasks->Detailed to make sure it is present. If this looks ok, let it run. What is the state of the task in question? Blocked? If Blocked, what is blocked on.

[12/16 update: Marking this as TI Thinks Resolved due to no activity from original poster.]

Code Composer Studio™︎

Code Composer Studio forum

CCS/TM4C1290NCPDT: what is priority order for the task ?