Click the blue text above to follow directly! Convenient for next reading. If this helps you, please give it a thumbs up or a like, thank you~ Article First Published Official Account – Pou Guangming On the third day of diligently working on a business trip in Shanghai…… The previous article introduced the rules for … Read more
When compiling the Linux kernel, we often execute some commands in the top-level directory of the Linux kernel. Taking RK3288 as an example, commands such as: make firefly-rk3288-linux_defconfig, make menuconfig, make firefly-rk3288.img, make zImage, etc. are used. Without getting into the specifics of these commands, let’s raise a few questions. (1) Given the vastness of … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join the technical exchange QQ group of 1000 people, note “public account” for faster approval Basic Structure A simple Makefile usually includes the following parts: Variable Definitions: You can define compilers, compilation options, source files, etc. Rules: Specify how to build targets. The … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇1000 people technical exchange QQ group, note 【public number】 for faster access 1. Basic Structure of Makefile The Makefile contains a series of “rules”, with the basic structure of each rule as follows: target…: prerequisites… <tab> command Target(target): usually the name of the file … Read more
Click the above“Mechanical and Electronic Engineering Technology” to follow us In Linux system programming, a Static Library is a compiled code library that contains a collection of multiple compilation units (such as functions and data) that can be shared by multiple programs. Static libraries typically have the file extension .a. Creating a Static Library Compile … Read more
Click the above“Mechanical and Electronic Engineering Technology” to follow us In Linux system programming, a dynamic library (Dynamic Library) is also known as a shared library (Shared Library), which is a library that is loaded only when the program runs. Dynamic libraries can be shared by multiple programs, saving memory and disk space, and making … Read more
Linux | Red Hat Certification | IT Technology | Operations Engineer 👇 Join our technical exchange QQ group with 1000 members Note: 【Public Account】 for quicker access 1. Ways to Install Software on Linux Source Code Installation RPM Installation — Linux Package YUM Installation (best option, can resolve installation sources, versions, and dependency issues) ping … Read more
Introduction Recently, I prepared to implement a virtual serial port driver in Linux; however, since graduation, I have been engaged in bare-metal driver development, and thus I have gradually forgotten about device drivers in Linux. To achieve this functionality, I have searched for a lot of information online, but most of it only explains the … Read more
Introduction In the previous article, we briefly introduced the difference between bare-metal drivers and device drivers, as well as the driver architecture of character devices in the Linux kernel. Without an operating system, upper-layer applications directly access the driver interface, and application engineers need to know the driver interface for each device. When accessing Flash, … Read more
Electronics Competition Group: 5-year Electronic Design Competition D Topic 481123148; 15-year Electronic Design Competition E Topic 481123833; 15-year Electronic Design Competition F Topic 73646017; 15-year Electronic Design Competition G Topic 45169719; 15-year Electronic Design Competition H Topic 16986998; 15-year Electronic Design Competition I Topic 80699535; 15-year Electronic Design Competition J Topic 475528830; The first problem … Read more