The serial port enables reliable communication between two terminal devices, functioning as the transport layer in this process. This article focuses on the data protocol. Similar Scenarios Hey! Hey! This is Dong Guai! Please respond! Please respond! over! Such dialogues are often seen in war-themed films when calling teammates through walkie-talkies or related wireless devices. … Read more
Embedded devices need to set parameters during operation, which is often accomplished by a PC. A communication protocol must be designed for both parties, with three representative protocols as follows: As can be seen from the table above, embedded devices generally have limited memory and computational performance, so fixed binary is the preferred communication protocol. … Read more
Follow+Star Public Account, don’t miss out on exciting content Source | Internet Embedded development often requires communication in various scenarios, making communication protocols essential. The three representative communication protocols are as follows: As can be seen from the table above, embedded devices generally have limited memory and computing performance, so fixed binary is the preferred … Read more
Today, I will share some common underlying data transmission principles of communication; UART, SPI, and I2C are very common communication methods in embedded development, and the fundamental communication principles of these methods are not difficult to understand. 1. UART Serial Communication UART: Universal Asynchronous Receiver/Transmitter. The UART serial port is the most common type of … Read more
This section continues to discuss another serial communication interface in embedded hardware communication protocols – IIC. Compared to UART serial protocol and SPI serial peripheral interface protocol, IIC has its unique features. Introduction IIC (Inter-Integrated Circuit), integrated circuit bus. IIC stands for Inter-Integrated Circuit (integrated circuit bus), this type of bus was designed by Philips … Read more
01 IIC Bus (Inter－Integrated Circuit) I2C (Inter-Integrated Circuit), also known as IIC or I2C bus, is a serial communication protocol used to connect multiple devices over short distances. It was first introduced by Philips in 1982 and is now widely used for communication between embedded systems, sensors, memory, and other peripheral devices. Here are some … Read more
Source: CSDN: https://blog.csdn.net/an520_/article/details/125479812, copyright belongs to the author, please contact for removal! Because it is a good article, I hope to share it with more people! UART, SPI, I2C and other serial communications are very common communication methods in embedded development. The underlying communication principles of these protocols are actually not difficult, but many beginners … Read more
Click the blue words Follow us 1. Introduction 1. Concept USART (Universal Synchronous Asynchronous Receiver Transmitter) is a serial communication device that can flexibly perform full-duplex information exchange with external devices. UART (Universal Asynchronous Receiver/Transmitter) is a bidirectional, serial, asynchronous communication bus that can achieve full-duplex communication using only one data receiving line (RXD) and … Read more
Serial communication methods such as ART, SPI, and I2C are very common in embedded development. The underlying principles of these communications are not difficult, but many beginners struggle to understand them. Today, I will share some common underlying data transmission principles of these communication methods. 1UART Serial Port UART: Universal Asynchronous Receiver/Transmitter. The UART serial … Read more
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