Click the blue text Follow us 1. Introduction 1. Concept The SPI (Serial Peripheral Interface) bus protocol is a full-duplex synchronous serial bus communication protocol used for data transmission between integrated circuits. The SPI bus typically consists of one master device and multiple slave devices, each slave device has a separate chip select signal, and … Read more
Click the Blue Text Follow Us 1. Introduction 1. Concept The IIC protocol (I²C, or Inter-Integrated Circuit) is a widely used low-speed serial half-duplex communication protocol for communication between integrated circuits, allowing only unidirectional communication at any one time. It was invented by Philips in the 1980s and is widely used for data transmission between … Read more
In embedded development, it is common to define custom protocol formats, such as for communication between boards or between client and server. There can be many types of custom protocol formats. In this article, we will introduce a commonly used, practical, and highly flexible protocol format—ITLV format. 01 【What Is ITLV Format?】 You may have … Read more
▼Click the business card below to follow our public account for more exciting content▼ A microcontroller is a microcomputer system that integrates a processor, memory, and input/output (I/O) interfaces, widely used in embedded systems. An embedded system is a computer system designed for specific tasks, typically embedded in other devices or systems to achieve control, … 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
Embedded development often requires communication in many scenarios, making communication protocols essential. The three representative communication protocols are as follows: As seen in the table above, embedded devices generally have limited memory and computational performance, so fixed binary is the preferred communication protocol. 1. Simplicity Ensure that the protocol is a simple solution; obscure and … Read more
Click here to download the materials (3rd update) We are giving away materials, copy and reply with the following keyword to receive them Material Collection About Today’s Post IIC stands for Inter-Integrated Circuit, a simple, bidirectional, two-wire, synchronous serial bus designed by Philips Semiconductor in the early 1980s. Microcontrollers generally have hardware I2C, so why … Read more
Overview of the EMMC Protocol Whether it’s EMMC V4.5 or V5.1, the protocol can seem overwhelming for newcomers who may struggle to grasp the key points or analyze it properly. This article summarizes some important and commonly used aspects of the EMMC protocol. 1. Basic Understanding of EMMC 1.1 Physical Connections: Card Concept (eMMC) image-20220215110840519 … Read more
Method of Mitsubishi PLC Controlling Mitsubishi Inverter: Using the PLC’s digital output to control the inverter (i.e., connecting the PLC’s digital output directly to the inverter’s digital input, allowing the PLC to control the inverter’s start, stop, forward, reverse, and multiple speed operation at high, medium, and low speeds through programming). Using the PLC’s analog … 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