RTOS Task Management
18 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What happens to a task if it exceeds the maximum waiting time for the queue?

  • It is deleted
  • It switches back to 'Ready' state (correct)
  • Its priority is increased
  • It is blocked indefinitely

    • What is the recommended approach when queuing items from an ISR?

  • Queue large items by copy
  • Queue small items by copy
  • Queue small items by reference
  • Store a pointer to the item being queued (correct)

    • What is the purpose of the pxTaskWoken parameter in xQueueReceiveFromISR?

  • To indicate the task priority
  • To indicate the buffer size
  • To indicate whether a task was unblocked (correct)
  • To indicate the queue handle

    • What is the return value of xQueueReceiveFromISR if an item is successfully received from the queue?

    <p>pdTRUE</p> Signup and view all the answers

    What is the effect of calling vQueueDelete on a queue?

    <p>It frees the memory allocated for the queue</p> Signup and view all the answers

    What is the function of xQueueSendFromISR?

    <p>To post an item into the back of a queue</p> Signup and view all the answers

    What is the relationship between task priority and running time in the scheduler?

    <p>Tasks with the same priority have equal running time</p> Signup and view all the answers

    What happens when a task is waiting for a more priority task to finish?

    <p>The task is ready</p> Signup and view all the answers

    What is the purpose of the TICK_RATE_HZ constant in FreeRTOSConfig.h?

    <p>To determine the time between each clock tick</p> Signup and view all the answers

    What is the result of calling vTaskSuspend() on a task?

    <p>The task is suspended</p> Signup and view all the answers

    What is the purpose of the StackDepth parameter in the xTaskCreate function?

    <p>To define the stack size for the task</p> Signup and view all the answers

    What happens when a task is preempted by a higher priority task?

    <p>The task is blocked</p> Signup and view all the answers

    What happens to a task when it is deleted using vTaskDelete?

    <p>It is removed from all ready, blocked, and suspended lists</p> Signup and view all the answers

    What is the purpose of the idle task in relation to vTaskDelete?

    <p>To free the kernel allocated memory from tasks that have been deleted</p> Signup and view all the answers

    What happens when a task's priority is set using vTaskPrioritySet?

    <p>A context switch will occur only if the priority is higher</p> Signup and view all the answers

    What is the effect of calling vTaskSuspend multiple times on the same task?

    <p>The task will be suspended only once</p> Signup and view all the answers

    What is the purpose of the vTaskResume function?

    <p>To resume a suspended task</p> Signup and view all the answers

    What determines the actual time a task remains blocked when using vTaskDelay?

    <p>The tick rate</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser