Answers: 1. (8 points) Suppose that an automobile microcontroller has four prior

Question

Answers: 1. (8 points) Suppose that an automobile microcontroller has four priority levels for interrupts (level 1 being the highest). The units interrupting the controller include an impact sensor subsystem, which needs attention within 0.1 ms, along with four other subsystems as follows: Use rate monotonic scheduling to assign a priority to each subsystem that guarantees the response time of 0.1 ms for the impact sensor and handles each of the other critical units before the next interrupt is produced. a. Justify your priority assignments. b. Does RMA guarantee schedulability?

Explanation / Answer

Solution :

a) To justify priority assignments using rate monotonic scheduling :

First priority is Dashboard display.

Second priority is Fuel/ignition.

Third priority is Engine temperature.

Fourth priority is Air conditioner.

b) Yes, RMA guarantee schedulability.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.