Embedded Systems

In-Depth Explanation of UART Serial Communication Protocol

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In-Depth Explanation of UART Serial Communication Protocol

　　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

Understanding I2C, SPI, and UART Serial Communication

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Understanding I2C, SPI, and UART Serial Communication

1.I2C: Inter-Integrated Circuit, abbreviated as I2C Bus. I2C mainly distinguishes slave devices through addresses, and its communication principle is relatively simple. 2.SPI: Serial Peripheral Interface, a common serial synchronous communication protocol widely used in applications. 3.UART: Universal Asynchronous Receiver/Transmitter, a serial, asynchronous, full-duplex communication protocol. GIF source from https://www.parlezvoustech.com/en/comparaison-protocoles-communication-i2c-spi-uart/ Follow the WeChat public account “Embedded … Read more

High-Speed I2C Driver for OLED Screen

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High-Speed I2C Driver for OLED Screen

Write summaries, discuss careers, and win DJI drones, Redmi tablets, Huawei headphones, and JD cards! This article is from the Breadboard Community’s “Lingdong Mini-F5333 Development Board” free evaluation activity. 【Purpose of Experience】Light up the OLED screen and learn to use I2C peripherals. 【Experimental Equipment】 MIN-F5333 Development Board OLED Display Screen 【Implementation Steps】 1. Copy the … Read more

I3C: The Next Generation Serial Communication Technology

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I3C: The Next Generation Serial Communication Technology

The Electronic Enthusiast Network reports (by Li Ningyuan) that the I2C bus, a well-known simple, bidirectional two-wire synchronous serial bus technology developed by Philips, requires only two wires to transmit information between devices connected to the bus. It has been widely used to connect various sensors, LCD screens, and memory. Previously, the impression of I2C … Read more

Realistic Animation Demonstration of I2C, SPI, and UART Communication

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Realistic Animation Demonstration of I2C, SPI, and UART Communication

So far, protocols like I2C, SPI, and UART remain the most commonly used communication protocols in electronic embedded devices. This article will dissect these three protocols, providing a clear and intuitive understanding of their functions, advantages, and limitations, accompanied by GIF animations. 1. I2C Protocol I2C is a serial communication protocol commonly used to connect … Read more

Understanding Communication Protocols: I2C, SPI, and UART

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Understanding Communication Protocols: I2C, SPI, and UART

So far, I2C, SPI, and UART are still the most commonly used communication protocols in electronic embedded devices. In this article, we will analyze these three protocols to help everyone clearly and intuitively understand their functions, advantages, and limitations, supplemented with GIF animations. I2C Protocol I2C is a serial communication protocol commonly used to connect … Read more

I2C vs SPI: A Technical Comparison

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I2C vs SPI: A Technical Comparison

Recently, there have been discussions in the WeChat group about I2C. Since we are talking about I2C, it’s necessary to mention SPI as well, so let’s discuss both. If anyone has better insights, please leave a comment to let more people know your views. 整理与网络，侵删 Should I2C and SPI Compete? Nowadays, in the field of … Read more

Berkeley DB: The Unmatched C Language Database Library!

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Berkeley DB: The Unmatched C Language Database Library!

Hello everyone! Today I want to introduce you to a super powerful C language database library – Berkeley DB (commonly referred to as BDB). It is a high-performance embedded database system that can help us easily achieve data persistence storage. Whether for small applications or large systems, it can handle it perfectly! What is Berkeley … Read more

Building Real-Time Operating Systems with C Language

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Building Real-Time Operating Systems with C Language

Building Real-Time Operating Systems with C Language In modern embedded systems, a real-time operating system (RTOS) is a crucial component. It ensures that the system completes tasks within a specified time, suitable for time-critical applications such as industrial control, automotive electronics, and medical devices. This article will introduce how to build a simple real-time operating … Read more

Using Switch Statement in C Programming for Microcontrollers

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Using Switch Statement in C Programming for Microcontrollers

The C language also provides another way for multi-branch selection using the switch statement, which has the general form:switch(expression){ case constant_expression1: statement1; case constant_expression2: statement2; … case constant_expressionn: statementn; default: statementn+1;}The semantics are: calculate the value of the expression. Then compare it one by one with the subsequent constant expression values. When the value of … Read more