Practice - Program 2: Reading Pushbutton Input and Controlling LED - 4.2
Practice Questions
Test your understanding with targeted questions
What does GPIO stand for?
💡 Hint: Think about how a pin can act as either input or output.
What is the purpose of the RCC register?
💡 Hint: RCC is about 'Reset' and 'Clock'.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of GPIO pins?
💡 Hint: Remember that GPIO stands for General Purpose Input/Output.
True or False: The IDR register is used for writing data to output pins.
💡 Hint: Recall the function of the IDR register regarding inputs.
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Challenge Problems
Push your limits with advanced challenges
Write a complete C program for STM32 microcontroller that reads a pushbutton state to toggle an LED using direct register access.
💡 Hint: Don't forget the internal pull-up for the button!
Calculate the necessary setup if the pushbutton is active-high instead of active-low. What changes in the code?
💡 Hint: What happens if the logic is inverted?
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Reference links
Supplementary resources to enhance your learning experience.