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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the control word for setting Port A as output?
💡 Hint: Look for the configuration bits for output.
Question 2
Easy
What does Port A control in our LED blinking program?
💡 Hint: Think about where the LEDs are connected.
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
Which control word sets Port A as output in the 8255?
- 8AH
- 00H
- FFH
💡 Hint: Consider the bits representing the output direction in control words.
Question 2
True or False: The delay subroutine can be omitted without affecting LED blinking.
- True
- False
💡 Hint: Think about the purpose of a delay in visibility.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Devise a program that adjusts the blinking speed of LEDs dynamically based on user input from a switch.
💡 Hint: Consider using another port for switch input handling.
Question 2
Calculate the control word needed if Port A is set to input and both Port C and Port B are outputs.
💡 Hint: Revisit the control bits configuration method we've discussed for insights.
Challenge and get performance evaluation