Have you noticed that AI is descending from the “cloud” and integrating into various devices around us? This is “Embedded AI,” which enables terminal devices to possess perception and decision-making capabilities. However, a key question arises: how can these dispersed “small intelligences” be reliably connected and work together?The answer may lie in the well-tested communication … Read more
Click the blue text Follow us 1. CRC Principle 1.1 Generating Polynomial To understand CRC checks, one must first grasp the concept of the generating polynomial. The generating polynomial is simply a divisor agreed upon by the sender and receiver. Both parties use this same divisor to perform modulo-2 operations. If the results are the … Read more
For friends engaged in automotive electronics or related fields, the ability to quickly assess the operational status of the CAN bus is a very practical skill. Today, we will delve into the normal voltage range of the CAN bus and how to conduct basic fault diagnosis through voltage measurements. 1. Normal Voltage Range of the … Read more
Hello everyone, welcome to this issue of the Zephyr RTOS Bulletin. 🚀 Top Story [ 👆 Replace with Elektor conference screenshot.png ] Zephyr’s “Global Coverage Day” concluded yesterday, with Rust emerging as the biggest winner! Yesterday (November 5), Zephyr held two major summits simultaneously online and in North America. According to leaked conference agendas and … Read more
Identifying the Cause of Interference When there is interference on the bus, experienced engineers can quickly locate the issue, but it can be troublesome for beginners. There are many causes of bus interference, such as electromagnetic radiation coupling into communication cables, improper grounding of shielded wires, and isolation of communication without isolating the power supply. … Read more
1. What is CAN Bus CAN Bus (Controller Area Network) is a widely used communication system in vehicles and industrial equipment, designed for reliable data transmission between various Electronic Control Units (ECUs). For example, in automobiles, the CAN Bus enables quick and secure information exchange between the braking system and the engine management system. A … Read more
☆Star this public account to not miss any updates☆ Whether it is the CAN bus or any computer system, data is ultimately stored and processed in binary. However, for the convenience of human reading and writing, we extensively use hexadecimal and decimal. Below, I will explain in detail binary, decimal, and hexadecimal, as well as … Read more
A crucial aspect of automotive development—revealing the secrets of calibration! What is Automotive Calibration Technology? Engineers set and adjust thousands of parameters in the vehicle’s ECU through a series of experiments, tests, and data optimization to ensure that all systems of the vehicle achieve optimal performance, efficiency, environmental friendliness, and comfort. The different calibration styles … Read more
Click the blue text Follow us We have encountered the issue of bus-off errors, and this article serves to document the resolution for this problem. The error message is as follows: Cause: Node crash, when the error accumulates to a certain number of occurrences, it will result in bus off. Solutions: 1. You can set … Read more
Differential Signaling In the field of electronic communication and signal transmission, “differential signaling” is a frequently encountered technical term. From USB data cables and HDMI video cables to automotive CAN buses and industrial Ethernet, it relies on this method to achieve stable data transmission. The core logic is quite simple — using “comparison” instead of … Read more