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Which FreeRTOS function is commonly used to notify a task to start its shutdown process?

easy📝 Syntax Q12 of 15
FreeRTOS - Design Patterns for RTOS
Which FreeRTOS function is commonly used to notify a task to start its shutdown process?
AvTaskDelete()
BxTaskNotifyGive()
CvTaskStartScheduler()
DxQueueSend()
Step-by-Step Solution
Solution:

  1. Step 1: Identify notification function

    xTaskNotifyGive() is used to send a notification to a task, often to signal events like shutdown.

  2. Step 2: Eliminate other options

    vTaskDelete() deletes a task immediately, vTaskStartScheduler() starts the scheduler, xQueueSend() sends data to a queue, not a direct notification.

  3. Final Answer:

    xTaskNotifyGive() -> Option B

  4. Quick Check:

    Notify task to shutdown = xTaskNotifyGive() [OK]
Quick Trick: Use xTaskNotifyGive() to signal tasks for shutdown [OK]
Common Mistakes:
  • Using vTaskDelete() to notify instead of delete
  • Confusing scheduler start with notification
  • Sending shutdown signal via queue instead of notification

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