Which of the following correctly demonstrates how to notify a task using xTaskNotifyGive() if the task handle is xHandle?

easy📝 Syntax Q3 of 15

FreeRTOS - Task Notifications

Which of the following correctly demonstrates how to notify a task using xTaskNotifyGive() if the task handle is xHandle?

AxTaskNotifyGive(xHandle, 0);

BxTaskNotifyGive(&xHandle);

CxTaskNotifyGive();

DxTaskNotifyGive(xHandle);

Step-by-Step Solution

Solution:

Step 1: Check function signature
xTaskNotifyGive() takes a TaskHandle_t as its only parameter.
Step 2: Analyze options
xTaskNotifyGive(xHandle); passes the task handle correctly. xTaskNotifyGive(&xHandle); passes address of handle (incorrect). xTaskNotifyGive(); has no parameter. xTaskNotifyGive(xHandle, 0); has an extra parameter which is invalid.
Final Answer:
xTaskNotifyGive(xHandle); -> Option D
Quick Check:
Single task handle parameter [OK]

Quick Trick: Pass task handle directly to xTaskNotifyGive [OK]

Common Mistakes:

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