In terms of Ethernet interface connections, there are usually two solutions: one is when the terminal product has a system running, such as Android systems on chips like RK3399, Linux systems on chips like i.MX6, and RTOS systems on low-end ARM chips like STM32F107. These chips have integrated Ethernet MACs, and by adding simple PHY … Read more
Advanced autonomous vehicles require high-bandwidth and low-latency networks to connect all sensors, cameras, diagnostic tools, communication systems, and central artificial intelligence. These technologies generate, send, receive, store, and process vast amounts of data. For the next generation of autonomous driving domain controllers, commonly used in-vehicle networks include CAN, LIN, FlexRay, MOST, and LVDS. Except for … Read more
Testing Standards, Testing Solutions, Testing Tools Ethernet, like LIN, is a product of competition in the automotive communication field, alongside the CAN bus. In specific areas, the former two are more suitable than the CAN bus. If we set aside R&D costs and focus solely on technical reasoning, the existence of both is justified. Technical … Read more
Hello, electrical buddies! Today, I, Old Bai, will talk to you about the industrial network configuration of the Siemens S7-1200 PLC. This topic might sound a bit high-end, but don’t worry, follow me step by step, and I guarantee you can easily master the network communication of this “big guy”. Industrial Ethernet: The PLC’s “Social … Read more
Key Knowledge Points in Chapter One: Understand the characteristics, classifications, developments, and applications of embedded systems, and be familiar with the logical components of embedded systems. Understand the main types of embedded processing chips, be familiar with the development process of SoC, and grasp the significant importance of IP cores. Be familiar with the encoding … Read more
-Begin- ModbusTCP Protocol Analysis ModbusTCP has the same message format as ModbusUDP; the difference between them is essentially the difference between TCP and UDP. Therefore, we will analyze the ModbusTCP protocol below. The differences between ModbusTCP and ModbusRtu (ModbusASCII) are shown in the figure below: As can be seen from the figure above, ModbusTCP, based … Read more
Introduction Modbus was developed byMODICONin 1979 and is a standard forindustrial fieldbus protocol. In 1996, Schneider Electric launched the Modbus protocol based on Ethernet TCP/IP: Modbus TCP. The Modbus protocol is an application layer messaging protocol that includes three types of messages: ASCII, RTU, and TCP. The standard physical layer interfaces for Modbus protocol include … Read more
1. Related to MAC Frame (Simple Simulation to Build MAC Frame) Ethernet Header Structure Definition (C Language) #include <stdio.h> #include <stdint.h> // Ethernet header structure typedef struct { uint8_t destination_mac[6]; // Destination MAC address, 6 bytes uint8_t source_mac[6]; // Source MAC address, 6 bytes uint16_t ether_type; // Ethernet type, e.g., 0x0800 indicates IP protocol } … Read more
Forum Weekly 21 Jan 2022 This week’s highlights: 1. Microcontroller + WiFi Module and Siemens S7-200 Smart for Modbus TCP Ethernet Communication 2. Self-drawn – 24V regulated positive and negative 12V switching power supply schematic! 3. Self-written Tetris, Botu V16 4. How to make the servo motor rotate freely while powered on? 5. S7 200 … Read more
Click the blue text above Follow us! Electronic products are continuously improving our interaction with automobiles. As integrated navigation or hands-free calling is no longer an exciting new feature, we have made significant progress. Today’s vehicles are equipped with innovative technologies and utilize hundreds of thousands of semiconductors to enhance intelligence, electrification, and safety levels. … Read more