1. Introduction to CAN In automotive electronics, there are many ECU control modules that manage different functions. To enable these numerous ECU modules to work together, the CAN protocol was developed, allowing multiple ECU modules to be connected to the CAN bus for local area network communication between ECUs. CAN is a serial communication protocol … Read more
Follow our official account, click the “···” in the upper right corner of the homepage to set a star mark, and stay updated on the latest news in intelligent automotive electronics and software. Source: Automotive Electronics and Software Author: JawSoWThe CAN protocol message transmission process includes:Data Frame, Remote Frame, Error Frame, Overload Frame, and Frame … Read more
The CAN (Controller Area Network) bus protocol defines four basic frame types and one inter-frame space, which are used for data transmission, error handling, bus load control, and other scenarios. Below is a detailed explanation of the structure, function, and practical applications of each frame type: 1. Data Frame 1. Function Core Purpose: Transmission of … Read more
The UART (Universal Asynchronous Receiver/Transmitter) is a serial communication device that serves as a bidirectional, serial, asynchronous communication bus. It can achieve full-duplex communication using one data receiving line (RX), one data transmitting line (TX), and a ground line (GND). As shown in the figure below: When communicating using UART, the unit of transmission is … Read more
CAN Protocol Message 1. Types of Frames Communication is conducted through the following 5 types of frames. ● Data Frame ● Remote Frame ● Error Frame ● Overload Frame ● Frame Interval In addition, the data frame and remote frame have both standard and extended formats. The standard format has11 bits identifier (Identifier: hereinafter referred … Read more
Communication protocols designed for embedded devices typically fall into three categories: Considering the limited memory and computing power of embedded devices, fixed binary is the preferred communication protocol. The following analyzes the characteristics that embedded device communication protocols should have. Simplicity Ensuring that the protocol is a simple solution is crucial; complexity often leads to … Read more
1. Understanding I2C Communication Many friends often feel confused when developing the IIC communication protocol. On one hand, it’s normal to forget related knowledge if it hasn’t been used for a long time. However, it can be quite troublesome to keep looking at the communication timing diagrams, such as the starting level conditions, stopping level … Read more