ARM Architecture - Exception and Interrupt Model
Given the following code snippet, what is the priority level set for IRQ number 3?
NVIC_SetPriority(3, 1);
Given the following code snippet, what is the priority level set for IRQ number 3?
medium📝 Analysis Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze the NVIC_SetPriority function parameters
The first parameter is the IRQ number (3), the second is the priority level (1).Step 2: Identify the priority assigned
The code sets priority level 1 for IRQ number 3.Final Answer:
Priority level 1 -> Option CQuick Check:
NVIC_SetPriority IRQ 3 = Priority 1 [OK]
Quick Trick: Second argument in NVIC_SetPriority is the priority level [OK]
Common Mistakes:
- Confusing IRQ number with priority
- Assuming priority starts at 0 always
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