Year: 2025

Classic C Language Interview Questions for Embedded Systems – Memory Management

by
Classic C Language Interview Questions for Embedded Systems - Memory Management

1. What are the methods of memory allocation in C language? ▍Technical Principles Explained In embedded systems, the memory allocation mechanism directly affects the stability and performance of programs. C language manages memory through the following three methods: Memory Allocation Methods Low-Level Mechanism Analysis: 1. Static Storage Area Lifecycle: Allocated at program startup, released at … Read more

Learning C Language Day 6

by
Learning C Language Day 6

Main content: while statement, do statement, for statement, exit loop, empty statement, etc. A loop is a statement that repeatedly executes other statements (the loop body). In C language, each loop has a controlling expression. Each time the loop body is executed (the loop repeats once), the controlling expression is evaluated. If the expression is … Read more

The Game of Thrones in C: How to Rule the Kingdom of Pointers with const

by
The Game of Thrones in C: How to Rule the Kingdom of Pointers with const

1. The Basic Relationship Between const and Pointers In C, the combination of the const keyword with pointers can create a powerful type safety protection mechanism. Depending on the position of const, four different pointer types can be generated: int a = 10; int b = 20; // 1. Pointer to a constant const int … Read more

Understanding One-Dimensional Arrays in C: Principles and Usage

by
Understanding One-Dimensional Arrays in C: Principles and Usage

Today, let’s talk about one-dimensional arrays in C language—this “data treasure trove” in the programming world. A one-dimensional array is like your personal library, helping you store and manage a large amount of data in an orderly manner. Mastering the principles and usage of one-dimensional arrays will make your programming more efficient and precise. The … Read more

From Beginner to Abandonment: Why 80% of People Can’t Learn C Language? Now I Understand, No Wonder I Can’t Learn It Either~

by
From Beginner to Abandonment: Why 80% of People Can't Learn C Language? Now I Understand, No Wonder I Can't Learn It Either~

“From today on, study hard and make progress every day” Repetition is the best method for memory; spend one minute every day to remember the basics of C language. 💻 From Beginner to Abandonment: Why 80% of People Can’t Learn C Language? Now I Understand, No Wonder I Can’t Learn It Either~ “C language is … Read more

The Importance of Modular Programming and Driver Separation in Embedded Systems

by
The Importance of Modular Programming and Driver Separation in Embedded Systems

Follow and star our official account, to access exciting content Source: zhzht19861011 Introduction When a project team undertakes a relatively complex engineering task, it means that you are no longer working alone. Instead, you collaborate with team members, each responsible for a part of the project. For example, you might only be responsible for the … Read more

Detailed Configuration of Embedded Linux Buildroot Environment: Building an Efficient and Stable Development Platform

by
Detailed Configuration of Embedded Linux Buildroot Environment: Building an Efficient and Stable Development Platform

Detailed Configuration of Embedded Linux Buildroot Environment: Building an Efficient and Stable Development Platform Introduction Buildroot, as a lightweight embedded Linux system construction tool, is widely popular in industrial control and IoT device development due to its simplicity and efficiency. This article will detail how to use Buildroot to set up a complete embedded Linux … Read more

Building an Embedded Linux Environment on Loongson Development Board: A Complete Guide from Scratch

by
Building an Embedded Linux Environment on Loongson Development Board: A Complete Guide from Scratch

Building an Embedded Linux Environment on Loongson Development Board: A Complete Guide from Scratch The embedded Linux system, with its open-source, stable, and highly customizable features, has become an important operating system choice for the Loongson platform. For engineers looking to develop applications on domestic chips, setting up an efficient embedded Linux development environment is … Read more

Embedded Development Software Architecture in C: Interrupt Service Routines

by
Embedded Development Software Architecture in C: Interrupt Service Routines

1. Interrupt Mechanism of Microcontrollers The interrupt mechanism refers to the ability of a microcontroller to quickly handle external events (interrupt requests) while executing the main program. When an external event A occurs, the microcontroller pauses the current main program (interrupt response), saves the current state data, and then calls the handler for event A … Read more

DIY Smart Garage Door Control: A PLC Beginner Project You Can Complete Over the Weekend

by
DIY Smart Garage Door Control: A PLC Beginner Project You Can Complete Over the Weekend

DIY Smart Garage Door Control: A PLC Beginner Project You Can Complete Over the Weekend Do you remember those scenes in sci-fi movies where the protagonist just presses a button and the garage door opens automatically? Today, I will teach you how to create your own smart garage door control system using a PLC, and … Read more