[Solved] This FreeRTOS code snippet does not behave as expected. What is the main problem? void Task(void *pvParameters) { while(1) { // Do some work vTaskDelay(1000);... | FreeRTOS

FreeRTOS - RTOS Fundamentals

This FreeRTOS code snippet does not behave as expected. What is the main problem?

void Task(void *pvParameters) {
  while(1) {
    // Do some work
    vTaskDelay(1000);
  }
}

int main() {
  xTaskCreate(Task, "Task", 1000, NULL, 1, NULL);
  vTaskStartScheduler();
  return 0;
}

AvTaskStartScheduler should be called before creating tasks

BvTaskDelay needs pdMS_TO_TICKS macro for delay time

CxTaskCreate missing priority parameter

DTask function must return an int

Step-by-Step Solution

Solution:

Step 1: Check vTaskDelay usage
vTaskDelay expects ticks, but 1000 is milliseconds; pdMS_TO_TICKS converts ms to ticks.
Step 2: Identify correct delay call
Correct call is vTaskDelay(pdMS_TO_TICKS(1000)) to delay 1000 ms properly.
Final Answer:
vTaskDelay needs pdMS_TO_TICKS macro for delay time -> Option B
Quick Check:
Delay in ticks, not ms [OK]

Quick Trick: Always convert ms to ticks with pdMS_TO_TICKS [OK]

Common Mistakes:

Passing milliseconds directly to vTaskDelay
Thinking task functions must return int
Calling scheduler before creating tasks

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More FreeRTOS Quizzes

This FreeRTOS code snippet does not behave as expected. What is the main problem?

Step 1: Check vTaskDelay usage

Step 2: Identify correct delay call

Final Answer:

Quick Check:

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