Source: 21ic Electronics Network Original Author: Na Luo Mi Mi A microcontroller (单片机) is an integrated circuit chip that combines a central processing unit (CPU) with data processing capabilities, random access memory (RAM), read-only memory (ROM), various I/O ports, an interrupt system, and timer/counter functions into a single silicon chip, forming a compact and complete … Read more
UART, or Universal Asynchronous Receiver/Transmitter, is one of the most commonly used communication protocols between devices. When configured correctly, UART can work with many different types of serial protocols that involve sending and receiving serial data. In serial communication, data is transmitted bit by bit over a single line or wire. In bidirectional communication, we … Read more
Click the Blue Word Follow Us UART (Universal Asynchronous Receiver/Transmitter) is a widely used serial communication protocol, typically used for communication between computers and peripherals. It is a general-purpose serial, asynchronous communication bus with two data lines that enable full-duplex transmission and reception. UART is a serial communication protocol that transmits data bytes bit by … Read more
Hello everyone, I am XXX. Today I bring you a detailed analysis of microcontroller communication protocols, including mainstream protocols such as UART, I2C, and SPI. These protocols are the bridge for data exchange between microcontrollers and other devices, and mastering them is crucial for embedded system development. Let’s break them down one by one, and … Read more
Source: https://blog.csdn.net/an520 UART, SPI, and I2C are very common serial communication methods in embedded development. The underlying principles of these communications are not difficult, but many beginners struggle to learn them. Today, I will share some common low-level data transmission principles of communication. UART Serial Port UART: Universal Asynchronous Receiver-Transmitter. UART is the most common … Read more
Abstract Chip programming is an important part of the production process of electronic products, and the efficiency of programming is a key concern for customers. The efficiency of programming is closely related to the programming speed of the chip. What factors influence the programming speed of chips? 1. Different Manufacturers’ Chips The differences between chip … Read more
Previously, we introduced how to make a logic analyzer and oscilloscope using RP2040. Today, we will build a logic analyzer using FPGA. Currently, the mainstream architecture of logic analyzers in China uses FPGA + USB PHY. The combination of the advantages of FPGA and the high accessibility of USB has allowed it to occupy the … Read more
Serial communication is the most basic communication method that electrical engineers face, with RS-232 being the simplest of them. Many beginners often get confused about the relationship and differences between UART and RS-232, RS-422, and RS-485. This article will discuss the understanding of these concepts to help clarify their relationships. If we compare serial communication … Read more
1. Synchronous and Asynchronous Transmission 1.1 Concepts and Examples Using everyday examples to illustrate what synchronous and asynchronous mean: Synchronous: A friend calls to say they are coming to my house for dinner, and I wait for them at home. Asynchronous: A friend arrives at my house unexpectedly without prior notice. The difference lies in … Read more
As TI employees, we are often asked if there are any insights or tips we have when designing with RS-485. To this end, we have compiled a series of comprehensive tips that must be remembered when using RS-485. And usage methods…… 1) Use twisted pair cables with Zo = 120Ω or 100Ω 2) Connect bus … Read more