[Solved] Which of the following is the correct way to create an event group in FreeRTOS? — Ans: EventGroupHandle_t xEventGroup = xEventGroupCreate(); | FreeRTOS

FreeRTOS - Design Patterns for RTOS

Which of the following is the correct way to create an event group in FreeRTOS?

AEventGroup xEventGroup = xCreateEventGroup();

BEventGroupHandle_t xEventGroup = xEventGroupCreate();

CxEventGroup = EventGroupCreate();

DEventGroupHandle_t xEventGroup = createEventGroup();

Step-by-Step Solution

Solution:

Step 1: Recall FreeRTOS event group creation syntax
The official FreeRTOS function to create an event group is xEventGroupCreate(), returning EventGroupHandle_t.
Step 2: Match the correct syntax
EventGroupHandle_t xEventGroup = xEventGroupCreate(); uses the correct function name and type: EventGroupHandle_t xEventGroup = xEventGroupCreate();
Final Answer:
EventGroupHandle_t xEventGroup = xEventGroupCreate(); -> Option B
Quick Check:
Correct function and type = EventGroupHandle_t xEventGroup = xEventGroupCreate(); [OK]

Quick Trick: FreeRTOS event groups use xEventGroupCreate() function [OK]

Common Mistakes:

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Which of the following is the correct way to create an event group in FreeRTOS?