Recommended Reading C Language Learning Guide: Have You Mastered These Core Concepts? Understanding Typical Scenarios of Dangling Pointers in C and Defensive Programming Strategies C Language Functions: From Beginner to Proficiency, A Complete Guide C Language Pointers: From Beginner to Proficiency, A Complete Guide C Language Structures: From Beginner to Proficiency, A Complete Guide C … Read more
In the merge window of Linux 6.17, the PCIe subsystem has undergone a new round of updates. Although this update is not the most talked-about in recent years, it still introduces several noteworthy enhancements, including support for new platform controllers, improvements in driver quality, and optimizations in resource management. Overview of Key Updates 1. Update … Read more
Scan to FollowLearn Embedded Together, learn and grow together The FreeRTOS introductory series aims to help beginners quickly get started and master the basic principles and usage of FreeRTOS while organizing knowledge. FreeRTOS Quick Start – Exploring the System FreeRTOS Official Chinese Website is Now Live FreeRTOS Coding Standards and Data Types FreeRTOS Quick Start … Read more
The Queue in real-time operating systems (RTOS) such as FreeRTOS is a very important communication mechanism, mainly used for 1. Inter-Process Communication (IPC) and data transfer between tasks and interrupts.2. It can facilitate task synchronization and resource management. General queues can protect and utilize resources by implementing semaphores and mutexes.This article, as the first part … Read more
2025Highlight Article of CJA In recent years, the number of satellites in orbit has increased exponentially, marking the advent of a “new era of aerial and space information” characterized by large-scale constellation collaborative operations. Orbital edge computing is a novel space computing paradigm that shifts data analysis and decision-making capabilities to satellite platforms. Recently, the … Read more
The Linux Control Groups (cgroups) is a mechanism provided by the Linux kernel to limit, control, and isolate the resources (such as CPU, memory, disk I/O, etc.) of a group of processes. Cgroup v1 and v2 are two major versions that have significant differences in design and functionality. 1. Architecture cgroup v1: Uses a hierarchical … Read more
Scan to FollowLearn Embedded Together, learn and grow together Embedded system development is becoming increasingly complex, evolving from simple microcontroller control to today’s smart devices that integrate various sensors, communication protocols, and complex algorithms. Modular programming has become the core methodology in embedded software development. Modular programming refers to dividing a software system into a … Read more
1. Virtualization Technology (1) Concept and Classification of Virtualization Technology The essence of virtualization technology is to abstract physical resources into logical resources, breaking the traditional deployment model of “one server corresponds to one application,” and achieving pooled management and dynamic allocation of computing, storage, and network resources. Conceptually, virtualization technology can be divided into … Read more
In-Depth Analysis of the Chip Trade Industry Series (Total of Seven Articles) This article is a rewritten version of a video for easier reading. The original video is approximately 1 hour and 11 minutes long, and the complete video can be accessed by replying with the keyword “chip” on our public account. This series is … Read more
Differences Between HTTP Long Connections and Short Connections In today’s rapidly developing internet technology, the HTTP protocol, as the core protocol for web applications, plays a crucial role in user experience and application performance. HTTP long connections and short connections, as two common connection methods, each have unique advantages and applicable scenarios. This article will … Read more