9.4.2. Interrupt Vectors

Try these first

1. 1.

   What is an interrupt vector?

   Hint

   Think about the relationship between interrupts and their handling functions.

2. 2.

   Give an example of an ISR.

   Hint

   Consider everyday devices interacting with your computer.

3. 3.

   What is an interrupt vector?

   • A table of ISRs
   • An external hardware device
   • A software application

   Hint

   Think about the definition we discussed.

4. 4.

   True or False: An interrupt vector is used to speed up the CPU's decision-making process.

   • True
   • False

   Hint

   Consider how long it would take without one.

5. 5.

   Design an interrupt vector table for an embedded system with three peripherals: a temperature sensor, a keyboard, and a network adapter. Specify priority levels and describe how your vector will handle incoming interrupts.

   Hint

   Think about which interrupts are more critical and why.

6. 6.

   Critically analyze a scenario where a low-priority interrupt delays the execution of a high-priority ISR. Provide a solution to mitigate this issue using an improved interrupt vector design.

   Hint

   Consider how prioritization affects system stability and responsiveness.