uxTaskPriorityGet() for reading priority in FreeRTOS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to get the priority of a FreeRTOS task.

FreeRTOS

UBaseType_t priority = uxTaskPriorityGet([1]);

Drag options to blanks, or click blank then click option'

AxTask

BxTaskHandle

CtaskHandle

Dhandle

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable name that is not the task handle.

Passing the task name as a string instead of the handle.

The function uxTaskPriorityGet() requires the task handle as argument. Here, taskHandle is the correct variable name representing the task.

2fill in blank

medium

Complete the code to print the priority of a task using printf.

FreeRTOS

printf("Priority: %u\n", [1]);

Drag options to blanks, or click blank then click option'

AuxTaskPriorityGet(taskHandle)

BtaskPriority

Cpriority

DgetPriority(taskHandle)

Attempts:

3 left

💡 Hint

Common Mistakes

Using a variable that is not initialized with the priority.

Calling a non-existent function like getPriority().

The function uxTaskPriorityGet(taskHandle) returns the priority, which can be printed directly.

3fill in blank

hard

Fix the error in the code to correctly get and store the task priority.

FreeRTOS

UBaseType_t [1] = uxTaskPriorityGet(taskHandle);

Drag options to blanks, or click blank then click option'

Apriority

Bprio

CtaskPriority

DpriorityLevel

Attempts:

3 left

💡 Hint

Common Mistakes

Using variable names that are not descriptive or confusing.

Not declaring the variable with the correct type UBaseType_t.

The variable priority is a common and clear name to store the priority value returned by uxTaskPriorityGet().

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps task names to their priorities for tasks with priority greater than 2.

FreeRTOS

{ [1]: uxTaskPriorityGet([2]) for [3] in tasks if uxTaskPriorityGet([3]) > 2 }

Drag options to blanks, or click blank then click option'

Atask.name

Btask

Ct

DtaskHandle

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong variable name in the loop.

Not calling uxTaskPriorityGet() with the correct argument.

The dictionary comprehension maps each task's name (task.name) to its priority by calling uxTaskPriorityGet(task). The loop variable is task.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase task names to their priorities for tasks with priority greater than 3.

FreeRTOS

{ [1]: [2] for [3] in task_list if uxTaskPriorityGet([3]) > 3 }

Drag options to blanks, or click blank then click option'

Atask.name.upper()

BuxTaskPriorityGet(task)

Ctask

DtaskHandle

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong variable for the loop.

Not converting the task name to uppercase.

The dictionary comprehension uses task.name.upper() as the key, and the priority from uxTaskPriorityGet(task) as the value. The loop variable is task.