[Solved] Examine this FreeRTOS code snippet:void vTaskExample(void *pvParameters) { vTaskResume(NULL); // Task code }What is the issue with calling vTaskResume(NULL) inside a task? | FreeRTOS

FreeRTOS - RTOS Fundamentals

Examine this FreeRTOS code snippet:

void vTaskExample(void *pvParameters) {
    vTaskResume(NULL);
    // Task code
}

What is the issue with calling vTaskResume(NULL) inside a task?

AThere is no issue; the code is correct

BvTaskResume(NULL) suspends the calling task incorrectly

CvTaskResume(NULL) causes a compile-time error

DCalling vTaskResume(NULL) resumes the calling task, which is invalid

Step-by-Step Solution

Solution:

Step 1: Understand vTaskResume()
This function resumes a suspended task. Passing NULL resumes the calling task.
Step 2: Identify the problem
Resuming the calling task is invalid because the task is not suspended; it is already running.
Final Answer:
Calling vTaskResume(NULL) resumes the calling task, which is invalid -> Option D
Quick Check:
vTaskResume(NULL) resumes self, invalid if not suspended [OK]

Quick Trick: vTaskResume(NULL) resumes self; invalid if not suspended [OK]

Common Mistakes:

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