Practice Program 3: Delay Generation Using A Timer (polling Method) (4.3) - Introduction to ARM Microcontrollers - Basic I/O and Peripherals
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Program 3: Delay Generation using a Timer (Polling Method)

Practice - Program 3: Delay Generation using a Timer (Polling Method) - 4.3

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is the purpose of a timer in microcontrollers?

💡 Hint: Think of timing scenarios in embedded applications.

Question 2 Easy

Define polling in terms of timers.

💡 Hint: Remember how we wait for a timer to finish counting.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the function of the prescaler in a timer?

To set the timer's maximum count
To divide the timer clock frequency
To enable the timer

💡 Hint: Think about how frequency affects counting rate.

Question 2

True or False: The Update Interrupt Flag (UIF) is cleared automatically when it is set.

True
False

💡 Hint: Consider the control you have over the timer flags.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Calculate the Auto-Reload Register value required for a 1.5 second delay if the counter frequency is at 2 kHz.

💡 Hint: Convert seconds to milliseconds and subtract 1.

Challenge 2 Hard

Design a timer configuration in code that implements a 250 ms delay. Describe each step.

💡 Hint: Use the delay calculations we've learned.

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Reference links

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