Practice - Program 2: Blinking LEDs Connected to Port A
Practice Questions
Test your understanding with targeted questions
What is the control word for setting Port A as output?
💡 Hint: Look for the configuration bits for output.
What does Port A control in our LED blinking program?
💡 Hint: Think about where the LEDs are connected.
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Interactive Quizzes
Quick quizzes to reinforce your learning
Which control word sets Port A as output in the 8255?
💡 Hint: Consider the bits representing the output direction in control words.
True or False: The delay subroutine can be omitted without affecting LED blinking.
💡 Hint: Think about the purpose of a delay in visibility.
1 more question available
Challenge Problems
Push your limits with advanced challenges
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.
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.
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Reference links
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