Practice C Program for External Interrupt - 5.2.2 | Experiment No. 8: 8051 Microcontroller - Serial Communication and Interrupts | Microcontroller Lab
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5.2.2 - C Program for External Interrupt

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What pin is used for External Interrupt 0 in the 8051?

💡 Hint: Refer to the pin assignments of the 8051.

Question 2

Easy

What does ISR stand for?

💡 Hint: Think about what happens when an interrupt occurs.

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 function of an ISR in the context of interrupts?

  • To respond to an interrupt event
  • To initialize the microcontroller
  • To reset the CPU

💡 Hint: Remember what happens when an external event occurs.

Question 2

True or False: The 8051 microcontroller can respond to multiple external interrupt sources simultaneously.

  • True
  • False

💡 Hint: Think about how the CPU processes tasks.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Write a C program that uses both external interrupts and timer interrupts on the 8051 to toggle an LED based on specific time intervals and button presses.

💡 Hint: Consider how these two interrupts can work concurrently.

Question 2

Explain possible issues when handling external interrupts and suggest solutions for debouncing.

💡 Hint: Think about how mechanical buttons can produce noise signals when pressed.

Challenge and get performance evaluation