In modern programming, image processing is an important field. Although C is not specifically designed for image processing, it provides powerful low-level operation capabilities that allow us to implement basic image reading and displaying functions. In this article, we will introduce how to perform simple image processing using C, including how to read and display … Read more
In modern computing, multithreaded programming is a common technique that allows programs to execute multiple tasks simultaneously, thereby improving efficiency and responsiveness. In C, we can use the POSIX Threads (pthread) library to implement multithreaded programming. This article will introduce the fundamentals of multithreading in C and demonstrate with example code. 1. What is Multithreading? … Read more
Shared memory is an inter-process communication (IPC) mechanism that allows multiple processes to access the same memory area. It is highly efficient because data does not need to be copied between processes but is read and written directly in the shared memory. In this article, we will introduce how to use shared memory in the … Read more
Introduction With the rapid development of the Internet of Things (IoT) and smart devices, edge computing has gradually become an important technological trend. Edge computing refers to processing data closer to the source to reduce latency, bandwidth consumption, and improve response speed. In this article, we will explore how to implement simple edge computing using … Read more
In the C language, macro definitions are a very powerful tool that can help us simplify code, improve readability, and maintainability. This article will detail macro definitions in C, including their basic concepts, usage methods, and some common application scenarios. What is a Macro Definition? A macro definition is a preprocessor directive used for text … Read more
Introduction: New students entering computer science often feel confused by the abundance of `#include <stdio.h>`: “It’s 2025, and the school is still teaching the ancient C language? Isn’t Java or Python better?” Today, we will dissect this classic debate—what languages should computer science students actually learn? I. C Language: The “Atomic Structure” of the Computer … Read more
An Introduction to Embedded System Programming with Python Introduction With the rapid development of the Internet of Things (IoT) and smart devices, embedded system programming has become increasingly important. Python, as an easy-to-learn and user-friendly programming language, is gradually gaining widespread application in embedded development. This article will guide you through an initial exploration of … Read more
In the world of embedded systems, “granularity” is not an abstract concept but a precise gauge that engineers use to control the pulse of the system. It requires us to be accurate to the millisecond in the time dimension, to manage memory down to the bit level, and to navigate modules in functional architecture, all … Read more
Developers working on embedded systems have certainly encountered issues such as tedious programming, difficult debugging, and lengthy log collection. Today, I would like to recommend a powerful tool—DAPLink—that provides a one-stop solution for programming, debugging, and serial logging, making the process incredibly smooth! What is DAPLink? In simple terms, DAPLink is firmware that runs on … Read more
1. Overview of Qt Embedded Development Qt/Embedded Linux (now known as Qt for Device Creation) is a version of Qt optimized for embedded systems, featuring the following characteristics: No need for the X Window System, using its own window system QWS (Qt Window System) Customizable compilation, removing unnecessary modules Supports multiple processor architectures (ARM, MIPS, … Read more