Data Transfer

Comparison of 9 Type-C Card Readers: Which One Can Solve Multi-Device Transfer Issues?

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Comparison of 9 Type-C Card Readers: Which One Can Solve Multi-Device Transfer Issues?

Need to transfer data urgently but have no solution?OTG card readers can solve this problem!In modern digital life, data transfer difficulties are common.Today, we will review several popular card readers. 01Pisen Type-C OTG TF Card Reader Interface Type: Uses a Type-C interface, compatible with both smartphones and tablets, making connections convenient and quick.Transfer Speed: Complies … Read more

Knowledge | Serial Peripheral Interface (SPI) Protocol: Principles, Architecture, and Applications

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Knowledge | Serial Peripheral Interface (SPI) Protocol: Principles, Architecture, and Applications

Author | Confused Zhen Produced by | Automotive Electronics and Software #01Introduction to the Serial Peripheral Interface (SPI) Protocol SPI is a multi-master or master-slave, four-wire, full-duplex synchronous serial communication protocol, which means that data can be sent and received simultaneously.SPI was developed by Motorola as a protocol for synchronous serial communication, allowing full-duplex communication … Read more

The iPhone with USB-C: Not as Convenient as You Might Think

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The iPhone with USB-C: Not as Convenient as You Might Think

As expected, the annual “Tech Spring Festival” — Apple’s autumn launch event, is set to take place next month. As in previous years, leading up to the launch event, rumors about the latest generation of iPhones, including spy photos and specifications, flood the internet from various sources. This year’s leaks mainly focus on the mute … Read more

Why Does Linux Report ‘No Space Left on Device’ When There is Still Available Space?

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Why Does Linux Report 'No Space Left on Device' When There is Still Available Space?

Hello everyone, I am Yu Yong. Yesterday, I encountered a problem: a Linux server used for data transfer suddenly stopped being able to perform data transfers. Upon checking the logs, there were messages indicating that files could not be saved and ‘No space left on device’. Using the command df -Th to check disk space, … Read more

Embedded Development in C: SPI Communication Protocol

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Embedded Development in C: SPI Communication Protocol

Embedded Development in C: SPI Communication Protocol Introduction The SPI (Serial Peripheral Interface) is a synchronous serial communication protocol widely used for high-speed data transfer between microcontrollers and various peripherals. It was introduced by Motorola in the 1980s and has been widely adopted due to its simplicity, flexibility, and efficiency. SPI is typically used to … Read more

Efficient Combination of mmap and Socket in Embedded Linux

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Efficient Combination of mmap and Socket in Embedded Linux

Hello everyone, I am the Information Guy~ In the pursuit of extreme performance in server development, how to reduce the number of data copies and lower CPU usage is an eternal topic. Today, I will introduce the combination of <span><span>mmap</span></span> and <span><span>socket</span></span>, which is a powerful tool to address this pain point, and has been … Read more

How to Transfer NS Games Between Two SD Cards | Tutorial

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How to Transfer NS Games Between Two SD Cards | Tutorial

Many readers may have encountered a situation where they initially purchased a smaller capacity microSD card for their NS, thinking they wouldn’t use up all that space. However, over time, they realized they underestimated their purchasing ability, leading them to buy a larger capacity microSD card. This raises the question of how to transfer the … Read more

Overview of Bluetooth Core Technologies (Part 1): Introduction to Bluetooth

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Overview of Bluetooth Core Technologies (Part 1): Introduction to Bluetooth

Bluetooth is a radio technology that supports short-range communication between devices (generally within 10 meters). It allows for wireless information exchange among various devices, including mobile phones, PDAs, wireless headsets, laptops, and related peripherals. By utilizing Bluetooth technology, communication between mobile terminal devices can be effectively simplified, and communication between devices and the Internet can … Read more

Understanding DMA in Embedded Systems

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Understanding DMA in Embedded Systems

Click the blue text Follow us Due to changes in the public account’s push rules, please click “Read” and add “Star” to get exciting technical shares as soon as possible. Source from the internet, please delete if infringing DMA, short for Direct Memory Access, is a method for transferring data directly between memory and peripherals … Read more

Understanding USB Communication Protocol with a Diagram

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Understanding USB Communication Protocol with a Diagram

1. Overview 2. Related Materials 3. USB Block Diagram 4. Understanding USB Concepts 4.1 USB Specification 4.2 USB Interface 4.3 USB Endpoint 4.4 USB Pipe 4.5 USB Data Transfer Types 4.6 USB Device Class 4.7 USB Descriptors 4.8 USB Communication Process 5. Summary 6. Discussion or Reflection 1. Overview USB (Universal Serial Bus) is ‘universal’ … Read more