[Solved] Which FreeRTOS API call correctly creates a task that runs the function SensorTask with priority 3? — Ans: xTaskCreate(SensorTask, "Sensor", 256, NULL, 3, NULL); | FreeRTOS

FreeRTOS - RTOS Fundamentals

Which FreeRTOS API call correctly creates a task that runs the function SensorTask with priority 3?

AxTaskCreate(SensorTask(), "Sensor", 256, NULL, 3, NULL);

BxTaskCreate(&SensorTask, "Sensor", 256, NULL, 3, NULL);

CxTaskCreate(SensorTask, "Sensor", 256, NULL, 3, NULL);

DxTaskCreate(SensorTask, Sensor, 256, NULL, 3, NULL);

Step-by-Step Solution

Solution:

Step 1: Understand xTaskCreate parameters
The function prototype is BaseType_t xTaskCreate(TaskFunction_t pxTaskCode, const char * const pcName, configSTACK_DEPTH_TYPE usStackDepth, void *pvParameters, UBaseType_t uxPriority, TaskHandle_t *pxCreatedTask);
Step 2: Analyze each option
xTaskCreate(SensorTask, "Sensor", 256, NULL, 3, NULL); correctly passes the function pointer SensorTask, task name as string, stack size, NULL parameters, priority 3, and NULL for handle.
xTaskCreate(&SensorTask, "Sensor", 256, NULL, 3, NULL); incorrectly uses address-of operator on function pointer.
xTaskCreate(SensorTask(), "Sensor", 256, NULL, 3, NULL); calls the function instead of passing pointer.
xTaskCreate(SensorTask, Sensor, 256, NULL, 3, NULL); passes a variable Sensor instead of string for task name.
Final Answer:
xTaskCreate(SensorTask, "Sensor", 256, NULL, 3, NULL); is correct.
Quick Check:
Function pointer without & or () and string name [OK]

Quick Trick: Pass function pointer and string name correctly [OK]

Common Mistakes:

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Which FreeRTOS API call correctly creates a task that runs the function SensorTask with priority 3?