Practice Interrupt Nesting (9.4.3) - Interrupt Mechanisms

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6 sample questions

Question 1.
What happens when a higher-priority interrupt occurs while a lower-priority ISR is executing?
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Think about how the CPU prioritizes tasks.
Question 2.
Define what an ISR is.
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Consider what the CPU does when an event occurs.
3Question 3.
What is interrupt nesting?
- A. The ability for an ISR to run indefinitely
- B. A method to disable all interrupts
- C. Higher-priority interrupts preempt lower-priority ISRs
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Think about how the CPU prioritizes interrupt handling.
4Question 4.
True or False: A stack overflow can occur if too many interrupts are nested without proper management.
- True
- False
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Consider the limitations of system memory.
Question 5.
Design a simple system that utilizes interrupt nesting. Describe how it functions and outline the potential risks associated.
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Consider how various tasks interact in your design.
Question 6.
Discuss the implications of stack overflow in systems with interrupt nesting and propose a solution to mitigate this risk.
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Think about how systems allocate resources dynamically.

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