12.3.2. Control Functions

Try these first

1. 1.

   What does a control function do in an embedded system?

   Hint

   Think about how we interact with hardware.

2. 2.

   Name a function used to control a GPIO pin.

   Hint

   What function would you use to set a pin state?

3. 3.

   What is the primary purpose of control functions in embedded systems?

   • To communicate data
   • To manipulate hardware components
   • To process user inputs

   Hint

   Consider how we control hardware components.

4. 4.

   True or False: GPIO pins can only be used for output.

   • True
   • False

   Hint

   Think about the configuration options for GPIO pins.

5. 5.

   Explain how you would design a control function to toggle an LED and describe any assumptions related to the GPIO pin.

   Hint

   Consider both reading and writing to the same pin.

6. 6.

   Discuss a scenario where interrupt handling improves the performance of an embedded application. What would you implement?

   Hint

   Think about CPU efficiency and responsiveness.