Recently, I saw some netizens discussing whether ‘CAN is more difficult than UART’ in a technical group. Some netizens said CAN is very simple, while others said CAN is very difficult. In fact, whether it is difficult or not mainly depends on your perspective. Some netizens may have a good foundation and have studied CAN, … Read more
Look at the image below; you probably guessed that today’s protagonist is UART. The serial port we commonly refer to includes both TTL level and RS-232 level, and in embedded systems, the serial port of microcontrollers is usually TTL level. Today’s content is about the frame format of UART, which is quite simple; those who … Read more
Click the blue text to follow“CurryCoder’s Programming Life” WeChat Official Account: CurryCoder’s Programming Life Skill comes from diligence; neglect leads to decay; success comes from thought; destruction comes from carelessness. 1. Communication Basics Based on transmission direction, communication can be divided into simplex, half-duplex, and full-duplex communication. Simplex communication: Data can only be sent from … Read more
If you want to learn more related knowledge, please follow us for more knowledge sharing. 1. What is UART UART (Universal Asynchronous Receiver/Transmitter) is a type of asynchronous serial communication protocol that transmits each character of data one bit at a time. It is the most frequently used data bus in application development. The characteristics … Read more
This is a very basic article translated from PCB Hero. There is also a comparative article about these three buses that you can refer to: https://www.totalphase.com/blog/2021/12/i2c-vs-spi-vs-uart-introduction-and-comparison-similarities-differences/ Differences Between I2C, SPI, and UART and Their Layout Guidelines MCUs from 8-bit to 32-bit will use at least one of these protocols along with GPIO to achieve programmability … Read more
1. What is UART? As one of the three commonly used low-speed buses (UART, SPI, IIC), UART plays an important role in designing various communication interfaces and debugging. UART stands for Universal Asynchronous Receiver/Transmitter, which is mainly used for serial data transmission, and operates in a full-duplex mode. When sending data, it converts parallel data … Read more
1. History of Serial Ports First of all, the serial port is an essential tool for anyone working with hardware and embedded software, especially when debugging a system with an MCU or CPU. Generally, the first thing we do during debugging is to light up the GPIO, and the second is to establish a communication … Read more
UART stands for Universal Asynchronous Receiver/Transmitter, also known as serial communication. Unlike communication protocols like SPI and I2C, it is a physical circuit within microcontrollers or an independent IC. The main purpose of UART is to send and receive serial data, and its greatest advantage is that it uses only two wires to transmit data … Read more
0x00 Introduction Recently, I have been learning about debugging hardware interfaces such as optical modems, routers, and cameras, but I did not make any records. Therefore, I will briefly document the learning process here for future reference. 0x01 Required Tools 1. TTL to USB converter 2. Multimeter 3. TTL to USB converter 4. SecureCRT connection … Read more
UART (Universal Asynchronous Receiver/Transmitter) is a widely used serial communication protocol in embedded systems. It supports full-duplex communication, allowing simultaneous data transmission and reception, making it very useful in applications that require bidirectional communication. The working principle of UART is to transmit data bit by bit, meaning each binary bit is transmitted independently through signal … Read more