When compiling a new program, we will use third-party compiled library files or library files that we compiled ourselves. Here we will use the static and dynamic libraries that have been compiled previously.1. Using Static LibrariesThe file structure is as follows. Here we have deleted add.c and subtract.c from the src folder, keeping only main.c, … Read more
Previous Highlights:CMake Hello, WorldCMake VariablesCMake Official Tutorial (Basic Project Setup)CMake Official Tutorial (Library Creation)CMake Official Tutorial (Usage Requirements)CMake Official Tutorial (Installation and Testing)CMake Common Syntax (if Statements)CMake Common Syntax (Cache Variables)CMake Common Syntax (Environment Variables)CMake Common Syntax (Mathematical Calculations) In mainstream programming languages, strings are a fundamental and core data type, which is crucial, and … Read more
1. Different Libraries Have Different Linking Methods OpenCV uses ${OpenCV_LIBS} target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS}) protobuf uses ${PROTOBUF_LIBRARIES} target_link_libraries(${PROJECT_NAME} ${PROTOBUF_LIBRARIES}) jpeg-turbo uses the target name libjpeg-turbo::turbojpeg-static target_link_libraries(${PROJECT_NAME} libjpeg-turbo::turbojpeg-static) 2. How to Determine Which Method to Use Generally, the following methods can be used: Check the CMake file for usage instructions. (Well-written CMake files usually include usage instructions) Look … Read more
1. Problem Phenomenon The code that runs normally on CentOS 7 crashes when compiled and run on CentOS 8. 2. Troubleshooting Process The crash occurred at a location in the test case that should not have been reached, so I first commented out that part of the code. It then crashed again after reaching the … Read more
Gao Wen, a representative of the National People’s Congress, an academician of the Chinese Academy of Engineering, and the director of the Pengcheng National Laboratory, mentioned in an interview that the construction of the computing power network includes three core elements: large-scale core computing power, super optical networks, and computing power scheduling systems. The ideal … Read more
Introduction: The 15th version of the GNU Compiler Collection is set to be released, during which some changes will be locked. GCC (GNU Compiler Collection) 15 is being updated as planned, and a new front end for COBOL is being introduced. This upgrade will also bring significant improvements to the development of C and C++. … Read more
01 Why learn embedded Linux and embedded microcontrollers? Because AI will not be able to replace them in the next decade. GCC, which stands for GNU Compiler Collection, is a compilation suite that supports various computer architectures such as X86, ARM, and MIPI. The GCC that we use is included by default in Ubuntu.GCC options … Read more
Recently, Keil MDK has been significantly upgraded to version V5.42, but for users in China (using the Chinese version of the Windows operating system), the first step in installation encountered difficulties, as shown in the image below: Of course, I was no exception, as I got stuck during installation (encountering a bug), and I even … Read more
Moxa’s serial port devices, such as serial port servers, serial port cards, and USB-to-serial devices, require driver installation to function properly. Sometimes, after installing the driver, issues may arise where the device cannot be used normally. In Device Manager, the device driver shows a yellow exclamation mark, indicating that Windows cannot verify the digital signature … Read more
In the Linux kernel, the <span>platform</span> device driver model is used to manage devices that are not directly mounted on physical buses (such as PCI or USB), for example, hardware modules (such as GPIO controllers, timers, etc.) within a System on Chip (SoC). This model associates devices (<span>platform_device</span>) and drivers (<span>platform_driver</span>) through a virtual <span>platform_bus_type</span> … Read more