1. Serial Port Activation Process Before we start, let’s take a look at a few demo programs for serial ports from different chips. These include the STM32 V3.5 standard library, the official demo for nRF52832, and the official DEMO for the STC15 series microcontroller with a 51 core. From the above demo examples and the … Read more
The address-specified write function supports EMMC_AUTO_ISP (flying line programming), EMMC_AUTO (offline 8x programming), EMMC_AUTO_4BIT (offline socket 4x programming), and EMMC_AUTO_1BIT (offline socket 1x programming). The operation methods for several programming modes are the same, and we will take EMMC_AUTO as an example to introduce the “custom address writing” function. After selecting the EMMC_AUTO function, click … Read more
Introduction RS-485 and CAN are both serial communication protocols. They allow for the arrangement of multiple devices within a single system, significantly reducing cable lengths. Their differential design is suitable for environments with strong interference, and both use 120 Ω termination resistors, equipped with internal over-voltage circuits for fault protection.RS-485 and CAN have many similarities, … Read more
Siemens S7-1500 Project Design and Practice Complete Tutorial! Siemens Communication Principles and Methods Mastery Tutorial Free Download! Over 600 CasesElectronic Repair TipsRepair Engineer’s Bible! Over 600 Common Electrical Circuit Diagrams Pack Download for Free! Popular Brand PLC Programming Series Books Free Download! Serial communication is the most basic communication method faced by electrical engineers, with … Read more
10 Free Training Materials for Industrial Robot Brands! (Click on the abovebrown text to download the materials) Serial communication is one of the most basic communication methods faced by engineers, with RS-232 being the simplest. Many beginners often struggle to understand the relationship and differences between UART, RS-232, RS-422, and RS-485. This article will discuss … Read more
Are there still people confused about RS-485 and Modbus? This article aims to clarify the differences for beginners. Experts can skip ahead, but feel free to share this with your novice friends. RS-485 is a widely used serial data transmission standard in industrial applications. When implementing RS-485 communication, the Modbus protocol is often used, which … Read more
Serial Communication refers to a communication method for data transmission through serial ports. Data is transmitted bit by bit through data signal lines and ground lines. Common serial ports include RS-232, RS-485, and RS-422. It is important to note that serial ports are only interface standards, specifying the electrical standards of the interface, and not … Read more
San Pao Er’s Hardware Development Learning Notes Sharing knowledge to enhance skills♥Exchanging experiences to strive for excellence Table of Contents 1. Main Features 2. Network Topology 3. Signal Levels and Unit Loads 4. Bus Termination and Stub Length 5. Fail-Safe Biasing ✍ RS-485 is a balanced transmission standard for serial communication approved by the Electronic … Read more
Any form of communication requires rules to ensure everyone is on the same page. In electronics, these rules take the form of standards—these are widely applicable design specifications recommended by industry associations. Following these guidelines helps engineering devices speak the same electronic language, enabling efficient and reliable communication. RS-232 (“RS” stands for “Recommended Standard”) was … Read more
01 【Overview of RS-485】 RS-485, like RS-232, is a serial communication standard. The current standard name is TIA485/EIA-485-A, but it is commonly referred to as the RS-485 standard. RS-485 is widely used in industries such as automation, automotive, and building management. The RS-485 bus overcomes the shortcomings of RS-232’s short communication distance and low speed. … Read more