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4 cards from this section. Quick, good the night before a test.
What is an interrupt?
Think about how programs manage unexpected events.
Why is priority important in interrupts?
Consider scenarios involving emergency vs. routine tasks.
What function does an interrupt vector serve?
Think about how the CPU knows where to go when an interrupt is signalled.
True or False: Higher-priority interrupts cannot preempt lower-priority interrupts.
Consider the urgency of various tasks.
Design a basic interrupt handling scheme for a smart irrigation system that prioritizes water level monitoring over routine scheduling.
Think about how urgently the system must react to moisture levels.
Assuming two ISRs are simultaneously triggered, one for user input and another for a critical warning signal, which should take precedence and why?
Consider the consequences of ignoring a warning signal.
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