The MMC/SD driver model is widely used in embedded development, and its corresponding Linux system framework can be classified under block devices. If you want to understand the IO storage stack, you can start with the simple MMC/SD driver model. Linux MMC/SD Driver Model The MMC/SD driver in Linux is mainly divided into three layers: … Read more
Problem: Example 066 Problem: Input three numbers a, b, c, and output them in order of size. Program Analysis: Use pointer method. NEXT Solution: # include<stdio.h> void swap(int *, int *); int main(void) { int a, b, c; int *p1, *p2, *p3; printf(“Input a, b, c:\n”); scanf(“%d %d %d”, &a, &b, &c); p1 = &a; … Read more
ABOUT ME “Bachelor’s in Electronic Information, Master’s in Computer Science, both from top 985 universities. Years of R&D experience in major internet companies, two of the top three. Focused on the IT field, specializing in professional choices, career planning, and programming skill enhancement.” With the continuous development of artificial intelligence, the Internet of Things, and … Read more
Why Are Compilers So Critical? On resource-constrained embedded platforms, compilers are not only responsible for translating source code into machine instructions but also undertake multi-level optimization tasks: Code Optimization and Size Reduction: Through function inlining, loop unrolling, constant propagation, and link-time optimization (LTO), firmware performance is enhanced and size is minimized. Hardware-Related Parameter Configuration: By … Read more
Some screenshots of electronic books 【Complete Set of Hardware Learning Materials Collection】
【Event Review】Growth Secrets of Embedded Experts Peer Workshop Event On May 21, the Peer Workshop event was successfully held! We invited senior student Wang Zhihong from the Internet of Things Engineering major to deliver an in-depth sharing focused on technical growth and career planning. “ Sharing Content Senior Wang Zhihong presented a “hardcore” experience feast … Read more
I am Lao Wen, an embedded engineer who loves learning.Follow me to become even better together!“Excellent hardware design, comprehensive software documentation, and the lowest possible product prices are essential to create competitive embedded development board products in the market.”Do you agree with the above statement, fellow embedded enthusiasts?!Based on observations over the past few years, … Read more
SoftwareIntroduction Keil uVision 4.22a MDK version is an integrated development environment (IDE) developed by KEIL. Keil MDK, also known as MDK-ARM, Realview MDK, I-MDK, KEIL MDK-ARM, KEIL ARM, uVision5 (older versions include uVision4 and uVision3), is a microcontroller software development platform developed by the well-known German software company Keil (now acquired by ARM). It is … Read more
SoftwareIntroduction Keil uVision 4.12 MDK version is an integrated development environment (IDE) developed by KEIL. Keil MDK, also known as MDK-ARM, Realview MDK, I-MDK, KEIL MDK-ARM, KEIL ARM, uVision5 (older versions include uVision4 and uVision3), is a microcontroller software development platform developed by the well-known German software company Keil (now acquired by ARM). It is … Read more
Introduction Recently, while browsing a seafood market, I noticed a mining box called the Panther X2, which is another custom hardware box similar to the Xunlei Money Treasure that has already ceased operations. The price for a brand new unit in the seafood market is approximately 110 RMB (as of 2025/5/27). The hardware configuration includes … Read more