FreeRTOS - Task Scheduling
You have three tasks with priorities 2, 4, and 3. Task with priority 4 is blocked waiting for an event. Which task will FreeRTOS schedule next?
You have three tasks with priorities 2, 4, and 3. Task with priority 4 is blocked waiting for an event. Which task will FreeRTOS schedule next?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand task states and scheduling
FreeRTOS schedules the highest priority task that is ready (not blocked).Step 2: Identify ready tasks
Task with priority 4 is blocked, so it cannot run now. Tasks with priority 3 and 2 are ready.Step 3: Choose highest priority ready task
Between priority 3 and 2, priority 3 is higher, so it runs next.Final Answer:
Task with priority 3 -> Option AQuick Check:
Highest ready priority = 3 [OK]
Quick Trick: Blocked tasks don't run; next highest ready priority runs [OK]
Common Mistakes:
- Trying to run blocked task
- Ignoring task states
- Assuming no task runs if highest priority blocked
Master "Task Scheduling" in FreeRTOS
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