PrefacePREFACE C++ is a programming language that introduces object-oriented mechanisms based on C. C++ inherits most features of C. On one hand, C++ treats C as its subset, allowing compatibility with C; on the other hand, C++ supports object-oriented programming, such as the concept and properties of classes. This is a significant improvement over C. … Read more
The phonetic method is the most fundamental word memorization technique. By understanding the common pronunciation rules of letters and letter combinations, one can greatly accelerate the speed of word memorization. In this lesson, we will continue to learn the pronunciation of the letter c and its combination cc. Word Annotations: 1. cook /kʊk/ n.Chef 2. … Read more
Optimizing a program usually refers to enhancing the program code or the execution speed of the program.Optimizing code and optimizing speed are essentially a contradictory unity.Generally, optimizing the size of the code will lead to an increase in execution time;if the execution speed of the program is optimized, it usually results in an increase in … Read more
This article is suitable for students who have studied LCD displays but do not fully understand them. The author uses the battleship STM32. In this article, the author will discuss three topics: FSMC-related configuration, principles of displaying a string of characters, and principles of displaying Chinese characters. Let’s get to the point →_→ 1. FSMC-related … Read more
This article is an excellent piece from the KX Forum Author ID on KX Forum: xiaoduoduo himqtt is the first complete source high-performance MQTT IoT firewall – MQTT Application FireWall, written in C language, using epoll mode to support hundreds of thousands of high concurrent connections for IoT, and is compatible with some ModSecurity rules. … Read more
Introduction to MQTT The MQTT protocol is currently the most popular Internet of Things protocol in the world, bar none. It provides devices with a stable, reliable, and easy-to-use communication foundation. As of now, there are over a hundred million devices connected via the MQTT protocol, widely used in fields such as IoT and M2M. … Read more
Modbus Introduction A brand new, customizable Modbus. This is a version you have never seen before. Easy to port and easy to use, with plenty of comments that you will love. The Modbus protocol is the standard communication protocol for industrial control devices, details can be found in the encyclopedia description. Simply put, the Modbus … Read more
What Is Type Confusion? In high-level programming languages, a variable typically consists of three parts: data type, type name, and value. The type name serves as a marker for distinguishing variables in the programming language (for example, in C, local variable names within a function cannot be repeated within the same scope). The value is … Read more
1. Introduction to GDB GDB is a powerful command-line debugging tool released by the GNU open-source organization for UNIX/LINUX operating systems. For a C/C++ programmer working on Linux, GDB is an essential tool; 2. GDB Usage Process Here, we will use a C program for basic demonstration, and the same applies to C++ programs; 1. … Read more
Word Count: 2000 Practicality Index: ⭐⭐⭐⭐⭐ 01 Macro Print Function In our embedded development, using printf to print some information is a common debugging method. However, when the amount of printed information is large, it can be difficult to know which information is printed in which function. Especially for printing exceptions, we need to quickly … Read more