[Solved] Given this FreeRTOS snippet, what is the error that prevents preemptive scheduling from working?... Given this FreeRTOS snippet, what is the error that prevents preemptive scheduling from working? | FreeRTOS

FreeRTOS - Task Scheduling

Given this FreeRTOS snippet, what is the error that prevents preemptive scheduling from working?

#define configUSE_PREEMPTION 0

void Task1(void *pvParameters) {
  while(1) {
    // Task code
  }
}

void Task2(void *pvParameters) {
  while(1) {
    // Task code
  }
}

AconfigUSE_PREEMPTION is set to 0, disabling preemption.

BTasks are missing priority assignments.

CTask functions must return int, not void.

DTasks need to call vTaskDelay to allow switching.

Step-by-Step Solution

Solution:

Step 1: Check configUSE_PREEMPTION value
The macro is set to 0, which disables preemptive scheduling.
Step 2: Understand effect on scheduling
With preemption disabled, tasks will not be interrupted automatically by higher priority tasks.
Final Answer:
configUSE_PREEMPTION is set to 0, disabling preemption. -> Option A
Quick Check:
configUSE_PREEMPTION = 0 disables preemption [OK]

Quick Trick: Preemption disabled if configUSE_PREEMPTION = 0 [OK]

Common Mistakes:

Thinking tasks must return int
Assuming missing priorities cause preemption failure
Believing vTaskDelay is required for preemption

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More FreeRTOS Quizzes

Given this FreeRTOS snippet, what is the error that prevents preemptive scheduling from working?

Step 1: Check configUSE_PREEMPTION value

Step 2: Understand effect on scheduling

Final Answer:

Quick Check:

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