What is the expected behavior of a task waiting on a notification after an ISR calls xTaskNotifyFromISR with eSetBits action?

medium📝 Predict Output Q5 of 15

FreeRTOS - Interrupt Management

AThe task crashes due to invalid notification action

BThe task ignores the notification and continues running

CThe task's notification value bits are set and it unblocks if waiting for those bits

DThe notification resets the task's notification value to zero

Step-by-Step Solution

Solution:

Step 1: Understand eSetBits action
eSetBits sets bits in the task's notification value without clearing others.
Step 2: Task waiting behavior
If the task waits for those bits, it unblocks when bits are set.
Final Answer:
The task's notification value bits are set and it unblocks if waiting for those bits -> Option C
Quick Check:
eSetBits sets bits and unblocks waiting task [OK]

Quick Trick: eSetBits sets bits, unblocking waiting tasks [OK]

Common Mistakes:

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