You want to set priority grouping in NVIC to allow 4 bits for pre-emption priority and 0 bits for subpriority. Which function and value should you use?

hard📝 Application Q8 of 15

ARM Architecture - Exception and Interrupt Model

ANVIC_SetPriorityGrouping(4);

BNVIC_SetPriorityGrouping(3);

CNVIC_SetPriorityGrouping(0);

DNVIC_SetPriorityGrouping(7);

Step-by-Step Solution

Solution:

Step 1: Understand priority grouping values
Priority grouping value 3 corresponds to 4 bits pre-emption priority and 0 bits subpriority in ARM NVIC.
Step 2: Match function call
NVIC_SetPriorityGrouping(3) sets this grouping correctly.
Final Answer:
NVIC_SetPriorityGrouping(3); -> Option B
Quick Check:
Grouping 3 = 4 bits pre-emption, 0 bits subpriority [OK]

Quick Trick: Use NVIC_SetPriorityGrouping(3) for 4 pre-emption bits [OK]

Common Mistakes:

Using wrong grouping value
Confusing pre-emption and subpriority bits

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More ARM Architecture Quizzes

You want to set priority grouping in NVIC to allow 4 bits for pre-emption priority and 0 bits for subpriority. Which function and value should you use?

Step 1: Understand priority grouping values

Step 2: Match function call

Final Answer:

Quick Check:

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