problem with changing task priority

Yevhen Yerko

After I created the task, I am trying to change the task priority. But the priority doesn`t change, and I don`t get any error either.

Please see the code below.

Error_init(&eb);
/* Create 1 task with priority 15 */
Task_Params_init(&taskParams);
taskParams.stackSize = 512;
taskParams.priority = 15;
task0 = Task_create((Task_FuncPtr)hiPriTask, &taskParams, &eb);

.................................

Task_setPri(task0, 3);

I am using msp-EXP430f5438a, SYS/BIOS 6.35, Code Composer Studio 5.4

over 12 years ago

0 Tom Kopriva over 12 years ago

TI__Mastermind 20480 points

Hi Yevhen,

can you be more specific on the version of SYS/BIOS? Are you able to see the task priority change in ROV?

0 Alan DeMars over 12 years ago in reply to Tom Kopriva

TI__Mastermind 30830 points

I suspect that what may be happening here is that the newly created task is switched to immediately because it is of higher priority than the task that created it. Consequently the code after Task_create() is never reached.

Alan

0 Yevhen Yerko over 12 years ago in reply to Tom Kopriva

Prodigy 175 points

I am using BIOS 6 6.35.1.29

I was confused by adding taskParams.priority in the watch expressions. The ROV shows, that priority was changed.

Thank you for your replies.

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problem with changing task priority