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Collection of Commonly Used Communication Protocols in Embedded Systems!

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Collection of Commonly Used Communication Protocols in Embedded Systems!

UART, SPI, and I2C are very common serial communication methods in embedded development. The underlying communication principles of these protocols are not difficult, but many beginners struggle to learn them. Today, I will share some common underlying data transmission principles of these communication methods. UART Serial Communication UART: Universal Asynchronous Receiver-Transmitter. The UART serial port … Read more

Why UART is Frequently Used in Embedded Debugging While SPI and I2C Are Rarely Chosen?

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Why UART is Frequently Used in Embedded Debugging While SPI and I2C Are Rarely Chosen?

Follow the blue text and reply with “entry materials” to get a tutorial from beginner to advanced on microcontrollers Development boards will guide you in your journey Written by | Wu Ji (WeChat: 2777492857) The full text is about3518 words, reading will take about 15 minutes Recall those long nights debugging when faced with a … Read more

Mastering the 10 Essential I2C Protocol Interview Questions for Embedded Engineers

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Mastering the 10 Essential I2C Protocol Interview Questions for Embedded Engineers

Hello everyone, I am Lin, an embedded software developer with many years of experience. Today, I will share the essential I2C protocol interview questions that you should master, hoping to help you. Click below to follow my account Follow me Introduction: The interviewer asked some I2C questions, and I couldn’t answer them. As an embedded … Read more

Comprehensive Guide to STM32 I2C

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Comprehensive Guide to STM32 I2C

Click the blue text Follow us 1. Introduction to I2C The I2C communication protocol (Inter-Integrated Circuit) was developed by Philips. Due to its fewer pins, simple hardware implementation, and strong scalability, it does not require external transceivers for communication protocols like USART or CAN, and is now widely used for communication between multiple integrated circuits … Read more

How to Detect and Resolve I2C Communication Deadlocks

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How to Detect and Resolve I2C Communication Deadlocks

Click the aboveblue text to follow us The I2C bus, as a widely used communication protocol in embedded systems, has its stability and reliability directly affecting the overall performance of the system. An I2C deadlock refers to a situation where the bus is stuck and unable to continue communication, usually caused by a slave device … Read more

Causes of I2C SDA Glitches/Half-High Levels and Their Impact on Applications

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Causes of I2C SDA Glitches/Half-High Levels and Their Impact on Applications

During the use of I2C, we may observe half-high levels or glitch phenomena. This article attempts to explain the causes of these phenomena and their impact on applications. The main content is as follows: 1. Glitch/Half-High Level Phenomenon 2. Characteristics of Glitches/Half-High Levels 3. Causes of Glitches 4. Is the Existence of Glitches Reasonable? 5. … Read more

Introduction and Comparison of CAN, I2S, I2C, SPI, and SSP Buses

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Introduction and Comparison of CAN, I2S, I2C, SPI, and SSP Buses

1. SPI Bus The Serial Peripheral Interface (SPI) bus technology is a synchronous serial interface introduced by Motorola. Most MCUs (Microcontrollers) produced by Motorola, such as the 68 series MCUs, are equipped with SPI hardware interfaces. SPI is used for full-duplex, synchronous serial communication between the CPU and various peripheral devices. It can simultaneously transmit … Read more

EOS-8: IO/SPI/I2C/RS232-485

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EOS-8: IO/SPI/I2C/RS232-485

★★★EOS-8—IO★★★ Author: Timothy Proofreader: Timothy Introduction: For various conventional interfaces, we have a good awareness of ESD protection. However, for some discrete or DIY circuits, cross-board usage often also requires ESD protection, such as GOIO, acquisition ports, or cross-board SPI, I2C, etc. This section introduces ESD protection for some IO and cross-board communication interfaces. €1.Digital … Read more

Detailed Introduction to the I2C Communication Protocol

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Detailed Introduction to the I2C Communication Protocol

For more content, you can join the Linux System Knowledge Base package (tutorials + videos + Q&A):Linux System Knowledge Base Package Table of Contents 1. I2C Frame Format 1.1 Start and Stop Conditions 1.2 Addressing 1.3 Read/Write Bit 1.4 Data Frame 2. Transmission Steps 3. Advantages and Disadvantages 3.1 Advantages 3.3 Disadvantages Consolidate, share, and … Read more

Introduction to Excellent Verilog/FPGA Open Source Projects (Thirteen) – I2C

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Introduction to Excellent Verilog/FPGA Open Source Projects (Thirteen) - I2C

Introduction to Excellent Verilog/FPGA Open Source Projects (Thirteen) – I2C 0 Introduction to I2C Official Website ❝ I2C – What’s That? The I2C bus specification was written by Philips Semiconductors, which later became NXP Semiconductors, and is now the maintainer of the I2C bus specification. Unfortunately, the latest I²C bus specification, NXP document version 6.0, … Read more