Cover ImageIn 2016, Mercedes-Benz once made an advertisement where the deer’s skeleton was clearly visible under the car lights (as shown above). Today’s car lights are bright enough to achieve this level.[Previous Highlights]: Beginner’s Guide: Practical Guide to Adjusting GPU on RK Platform Ubuntu Welcome to follow “Embedded Sharing“, updated weekly! ☞ Main Content Before … Read more
Continuing with the circuit design around the TJ375N1156X, today we will introduce the eMMC interface and the SD card interface. 1. eMMC Interface eMMC: Embedded Multi Media Card, as shown in the diagram below, the internal structure of eMMC packages NAND Flash and the eMMC controller together, providing a standard interface that allows eMMC to … Read more
Since its debut in 2000, the SD (Secure Digital) memory card has become the most widely used portable storage medium globally. From digital cameras, smartphones, drones, single-board computers, to the latest portable gaming consoles, SD cards are ubiquitous. According to official data released by the SD Association (http://www.sdcard.org/) on May 21, 2025, the total number … Read more
The SD card was invented in 1999, and this is a look back at Sony in 1998 (X, MarchUnofficial)
Strictly speaking, an SD card is not “memory”. However, in everyday language and commercial promotion, SD cards are commonly referred to as “memory cards”. Below, we will compare the differences between RAM, internal storage, and SD cards to provide a deeper understanding of SD cards. Imagine your phone or camera as an office: RAM = … Read more
Have you ever encountered this situation? Frequently removing and inserting the SD card from the camera can lead to wear and aging over time, and it may even crack or break. If the card insertion feels a bit rough, you must pay attention and not ignore it, as it could cost you hundreds of dollars; … Read more
In the daily use of electronic devices, we often rely on SD cards to store a large amount of important data. However, during the management and preservation of data, the common operation of “formatting” can lead to the instant clearing of data on the SD card. How to recover data from a formatted SD card? … Read more
Comprehensive Guide to ESP32 SD Card File Operations 1. Hardware Connection and Configuration Hardware Requirements ESP32 Development Board Micro SD Card Module (SPI Interface) Micro SD Card (Recommended 4GB-32GB, FAT32 format) Several Dupont Wires Wiring Diagram SD Card Module → ESP32 Pins —————— CS → GPIO5 (customizable) SCK → GPIO18 MOSI → GPIO23 MISO → … Read more
Reliability Design of FAT32 File System Based on SD Card Authors: Lu Junhui, Liu Qi, Shi Lijuan (Jianghan University, School of Intelligent Manufacturing, Wuhan, Hubei 430056) Abstract This paper analyzes the issues of the FAT32 file system in embedded system applications, reserving FDT space to ensure that FDT and DATA are stored sequentially, preventing interleaving … Read more
1. Development Environment Configuration 1. Download Arduino IDE – Official download link: https://www.arduino.cc/en/software – Version selection: – Recommended version 1.8.x stable (best compatibility) – Or version 2.0.x (requires testing library compatibility) 2. Installation Steps (This section only explains Windows system) ① Double-click the exe installation package ② Check “Install USB drivers” ③ It is recommended … Read more