vTaskPrioritySet
[Task Control]

void vTaskPrioritySet( TaskHandle_t xTask,
                       UBaseType_t uxNewPriority );

INCLUDE_vTaskPrioritySet must be defined as 1 for this function to be available. See the RTOS Configuration documentation for more information.

Set the priority of any task.

A context switch will occur before the function returns if the priority being set is higher than the currently executing task.

Parameters:

xTask	Handle to the task for which the priority is being set. Passing a NULL handle results in the priority of the calling task being set.
uxNewPriority	The priority to which the task will be set.

 void vAFunction( void )
 {
 TaskHandle_t xHandle;

     // Create a task, storing the handle.
     xTaskCreate( vTaskCode, "NAME", STACK_SIZE, NULL, tskIDLE_PRIORITY, &xHandle );

     // ...

     // Use the handle to raise the priority of the created task.
     vTaskPrioritySet( xHandle, tskIDLE_PRIORITY + 1 );

     // ...

     // Use a NULL handle to raise our priority to the same value.
     vTaskPrioritySet( NULL, tskIDLE_PRIORITY + 1 );
 }