Practice Timer Interrupts (3.5) - Microcontroller Fundamentals: 8051 Basic I/O and Timers
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Timer Interrupts

Practice - Timer Interrupts

Learning

Practice Questions

Test your understanding with targeted questions

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.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

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.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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.

Challenge 2 Hard

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.

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Reference links

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