Practice Timer Interrupts - 3.5 | Experiment 7: "Microcontroller Fundamentals: 8051 Basic I/O and Timers" | Microcontroller Lab
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is an interrupt?

💡 Hint: Think about what happens when a call comes into a phone.

Question 2

Easy

What does the IE register do?

💡 Hint: Remember which interrupts can be turned on.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the purpose of timer interrupts?

  • A. To enable constant polling
  • B. To allow the CPU to perform other tasks while timing
  • C. To immediately halt the CPU
  • D. To extend the CPU speed

💡 Hint: Consider how waiting and processing work together.

Question 2

The IE register is used to enable interrupts. True or False?

  • True
  • False

💡 Hint: Think about what control does the IE register provide.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are tasked with creating a timer in your microcontroller that triggers every 250 ms. Describe how you would set the initial timer value and write the ISR to handle the event.

💡 Hint: Remember to consider the microcontroller's clock frequency for accurate delay.

Question 2

You need to distinguish between Timer 0 and Timer 1 interrupts in your application. Explain how to do this within your code structure.

💡 Hint: Look into how the TCON register indicates which timers have overflowed.

Challenge and get performance evaluation