Understanding SPI Communication in STM32

Understanding SPI Communication in STM32

Electronics Association Maker Lab SPI stands for Serial Peripheral Interface. It is a high-speed, full-duplex, synchronous communication bus widely used in communication with ADCs, LCDs, and other devices connected to MCUs, characterized by its speed. SPI Protocol Like IIC and serial ports, SPI also has its communication protocol, which is generally learned in a layered … Read more

How to Solve the Absence of EEPROM in STM32?

How to Solve the Absence of EEPROM in STM32?

In embedded systems, EEPROM (Electrically Erasable Programmable Read-Only Memory) is often used to store data that needs to be changed frequently and should not be lost due to power interruptions. However, since STM32 does not have built-in EEPROM, how can we solve this problem and meet storage requirements? 1. Use External EEPROM Chips When STM32 … Read more

Understanding How to Drive Dot Matrix LCDs in Five Minutes

Understanding How to Drive Dot Matrix LCDs in Five Minutes

The LCDs we purchase generally consist of two parts: The LCD panel and the LCD driver chip Our processor does not directly drive the LCD panel, but rather drives the LCD driver chip, which in turn drives each pixel on the LCD panel. Therefore, to make the LCD display certain content, we need to consider … Read more

Summary of Common Communication Interfaces in Embedded Development

Summary of Common Communication Interfaces in Embedded Development

In embedded systems, on-board communication interfaces refer to the communication paths or buses used to connect various integrated circuits with other peripheral devices. The following content summarizes commonly used on-board communication interfaces: including I2C, SPI, UART, and 1-Wire: I2C Bus The I2C bus is a <span> synchronous, bidirectional, half-duplex two-wire serial interface bus</span>. Here, half-duplex … Read more

Detailed Explanation of 6 Connection Methods for Embedded Color LCDs

Detailed Explanation of 6 Connection Methods for Embedded Color LCDs

There are various interfaces for LCDs, with detailed classifications. The main focus is on the driving and control methods of the LCD. Currently, the connection methods for color LCDs on mobile phones generally include: MCU mode, RGB mode, SPI mode, VSYNC mode, MDDI mode, and DSI mode. MCU mode is also referred to as MPU … Read more

A Comprehensive Guide to CPU Architecture

A Comprehensive Guide to CPU Architecture

Source: Semiconductor Industry Observation The CPU, often referred to as the brain of the computer, consists of several parts, including those that receive information, store information, process information, and assist in outputting information. These parts work together to process information. In today’s article, we will introduce the key elements that make up the CPU and … Read more

How Many Types of Buses Are There? Why Do Engineers Often Get Confused?

How Many Types of Buses Are There? Why Do Engineers Often Get Confused?

First, it should be understood what a bus is. According to Baidu’s complete definition: a bus is a common communication line for transmitting information between various functional components of a computer, composed of wire transmission lines, classified according to the types of information transmitted by the computer. In fact, a bus is an internal structure … Read more

Differences and Connections Between SPI, UART, and I2C Buses

Differences and Connections Between SPI, UART, and I2C Buses

Welcome FPGA engineers to join the official WeChat technical group. Clickthe blue textto follow us at FPGA Home – the best and largest pure FPGA engineer community in China SPI Bus SPI (Serial Peripheral Interface) is a high-speed, full-duplex, synchronous, serial communication bus that uses 3 to 4 lines and operates in a master-slave mode, … Read more

Detailed Explanation of SPI, UART, and I2C Buses

Detailed Explanation of SPI, UART, and I2C Buses

Source: Automotive ECU Design When you connect a microcontroller to sensors, displays, or other modules, have you considered how these two devices communicate with each other? What exactly are they saying? In fact, communication between electronic devices is like communication between humans; both parties need to speak the same language. In electronic products, these languages … Read more