This article is an excellent piece from the Kanxue Forum. Author from Kanxue ForumID: abcz316 Linux is an open-source kernel system. I am also very fond of embedded Linux systems, especially its kernel source code, which is written in a style that I really appreciate. This driver was previously written during my spare time for … Read more
Word Count: 1400 Practical Index: ⭐⭐⭐⭐⭐ 01 Learn Basic Bare-Metal Programming For those learning hardware, it is essential to first have a perceptual understanding of the basic usage methods of the hardware and to deeply understand the control methods of the hardware. If you start by learning the Linux system and porting, you will quickly … Read more
1. The Engineer’s Perspective on “Embedded Systems” From an engineer’s point of view: focus on understanding the concept of “embedding” from three main aspects: 1. From the hardware perspective, integrating peripheral devices based on the CPU into the CPU chip itself. For example, early computers based on the X86 architecture only had arithmetic and accumulator … Read more
Article Word Count: 6000 Content Index: ⭐⭐⭐⭐⭐ 01 What to Learn in Embedded Driver Development ✍Embedded Systems Generally Include the Following Four Directions: Embedded Hardware Development:Familiar with circuit knowledge, very familiar with various common components, mastering development capabilities in analog and digital circuit design. Proficient in embedded hardware knowledge, familiar with hardware development models and … Read more
Understanding the Concept of “Embedded” 1 From the Hardware Perspective Integrating CPU-based peripheral devices into the CPU chip itself. For example, in early computers based on the X86 architecture, the CPU only had arithmetic and accumulator functions, and all chips had to create external bridges to expand functionality. Devices like serial ports were implemented using … Read more
Word Count: 3800 Content Quality: ⭐⭐⭐⭐⭐ In simple terms, from basic knowledge of ARM to bare-metal programming, from uCOSII to Linux, from basic Linux commands to shell programming, from u-boot to file systems, and finally to Linux driver programming. The learning path goes from simple to complex, from basic to advanced. Stage 1: Embedded Hardware … Read more
Overview This article introduces the development process and methods of device drivers under the platform framework, mainly including the development of device trees, drivers, and applications. Taking the random number driver as an example, it implements the process of the application calling the library function, entering the kernel through a system call, and finally executing … Read more
1.The Importance of Driver Loading Loading drivers is the cornerstone of normal device operation. Take a graphics card as an example: when we install a new graphics card on a computer, if we do not load the corresponding driver, the operating system will not be able to recognize the various functions of the graphics card. … Read more
1. Basics of Driver Development In the world of computers, drivers act as “unsung heroes,” silently building a communication bridge between hardware and the operating system. They encapsulate the specifics of hardware devices to provide a unified and user-friendly interface for the operating system, ensuring the computer system operates stably and efficiently. Whether it is … Read more
Hello, I am Lao Wu. Does every ambitious person feel that they can work a little harder? In the end, if the goal is not achieved, the reason for failure can always be attributed to “not trying a little harder”. However, the biggest misconception about effort is: the longer the time and the more painful … Read more