The General-Purpose Input/Output (GPIO) Peripheral
In this chapter, we will explore the General-Purpose Input/Output (GPIO) peripheral, an essential component in microcontrollers. This peripheral is crucial for interfacing with microcontrollers, making it fundamental to embedded systems development.
We will start by exploring the organization of GPIO ports and pins, covering both the general-purpose and alternate functions of these pins. Next, we will examine the key registers associated with the GPIO peripheral in STM32 microcontrollers. Finally, we will apply this knowledge to develop input and output drivers using the detailed register information we learn in this chapter.
In this chapter, we will cover the following main topics:
- Understanding the GPIO peripheral
- The STM32 GPIO registers
- Developing input and output drivers
By the end of this chapter, you will be able to use the GPIO peripheral to interface effectively with microcontrollers, which will...
