The Dominance of Global Variables in Microcontroller Development

⚡ The Dominance of Global Variables in Microcontroller Development Global variables, often “disliked” in desktop application development, are widely used in the field of microcontrollers. This seemingly contradictory phenomenon hides the unique operating environment and development constraints of embedded systems. // Typical microcontroller program structure volatile uint8_t flag = 0; // Interrupt flag uint32_t system_ticks … Read more

C Language Animation: Meteor Shower

Using C language to create a meteor shower animation, the effect is as follows: Core Steps: 1. First, set up the drawing window with a size of 640×480, and set the center origin coordinates to (320, 240): 2. Randomly generate stars and meteors within the window. The colors of the stars are random to enhance … Read more

Using the malloc Function for Dynamic Memory Allocation in C

Using the malloc Function for Dynamic Memory Allocation in C In C programming, memory management is an important topic, especially when dealing with memory that needs to be dynamically allocated. Dynamic memory allocation allows programs to request a specific amount of memory as needed, without having to declare the size of variables in advance. This … Read more

Understanding Arrays and Pointers in C Language: Part Three

3. Analyzing from the Perspective of Compiler Semantics In fact, we have already covered a lot about the compiler’s understanding of the syntax and semantics of the C language in the previous section. Below, we will further explain this logic from the compiler’s output. In this article, we will first paste the compilation results of … Read more

Understanding C Language File Operations – An Array in Essence

Understanding C Language File Operations – An Array in Essence There are four main components of C language files: Opening (Creating) and Closing Files、Read and Write Operations、Positioning Operations、Error Checking，this article will explain the first two topics. 🌟 1. Opening and Closing Files •<span>fopen</span> •Function：Opens a file and returns a pointer to that file. •Prototype：<span>FILE *fopen(const … Read more

Suzhou C Language Training: Why Should College Students Learn C Language? The Five Major Advantages of C Language

In today’s digital age, programming has become an essential skill. For college students, learning C language not only lays a solid programming foundation but also opens up more possibilities for future career development. This article will analyze the five major benefits of college students learning C language and introduce high-quality C language training resources in … Read more

The ‘Text Processor’ in C Language: Character Arrays

Today, let’s talk about character arrays in C language—this “text processor” in the programming world. Character arrays are like your word processor, helping you efficiently store and process text data. Mastering the use of character arrays will make your programming more flexible and powerful. Definition and Initialization of Character Arrays A character array is an … Read more

Expecting to Learn Multiple Languages, but Stuck with C Language

User Comments: @Scarlett_北冥雨夜: You should learn PHP first @Mr_HaiTwo: Expectation: Java, Reality: PHP, Python, C++, Shell, JS, HTML @Professor Liu from Qinhuai Hospital, 3rd Floor: C language is very deep @NereusP: I started learning with Xijia, so I know both C and Java @Why do you care what others think: I feel that C language … Read more

Embedded State Machine Programming – QP State Machine Framework

Content Source: Sun Wukong Seeking Knowledge Basic Terminology of State Machines Current State: Refers to the state currently being occupied. Condition: Also known as “event”, when a condition is met, it will trigger an action or execute a state transition. Action: The action executed after the condition is met. After the action is completed, it … Read more