The main reason is that C++ automatically generates certain programs, such as constructors and destructors. Simple processors lack memory management and cannot accurately load a function into memory, which is also why C++ cannot be used in embedded systems and operating system boot processes. Additionally, C++ renames functions to support overloading. The key factor is … Read more
IAR Embedded Workbench for ARM is a powerful integrated development environment (IDE) designed specifically for ARM processors, widely used in embedded system development. It provides a comprehensive toolchain, including compilers, assemblers, linkers, debuggers, and performance analysis tools, helping developers efficiently develop, debug, and optimize embedded applications. 1. Overview 1.1 Features Complete Toolchain: Includes C/C++ compilers, … Read more
In the era of artificial intelligence and Industry 4.0, operations research technology has become the core engine for enhancing decision-making efficiency. Python, with its powerful scientific computing ecosystem, has nurtured numerous specialized optimization libraries. This article introduces 8 major Python operations research tools, covering linear programming, integer programming, combinatorial optimization, and other comprehensive needs to … Read more
Floating Point Representation The representation of floating-point numbers follows the IEEE 754 standard, including single precision, double precision, and half precision floating-point numbers. Each floating-point number has a sign bit, an exponent, and a fraction part. Single Precision Floating Point (32 bits) Bit 31: Sign bit (0 indicates positive, 1 indicates negative). Bits 30-23: Exponent … Read more
In C++ STL programming, we often encounter scenarios that require custom comparison rules or callable objects. At this point, the concept of function objects becomes very important. Compared to regular functions, function objects can not only be called like functions but also carry state, making the code more flexible and efficient. Function objects are frequently … Read more
In C++, an empty class is defined as a class that does not declare any members (data or functions). Although it seems simple, empty classes have special properties and behaviors in C++ that are worth exploring. What is an Empty Class? An empty class is a class that does not contain any user-defined members, for … Read more
During the firmware upgrade process of the ESP32, the HTTPS transmission rate often becomes a key factor limiting upgrade efficiency. Based on actual test data, traditional HTTPS upgrade methods exhibit the following typical issues: • Slow transmission rate: A 1MB firmware takes about 90 seconds • High memory usage: The SSL handshake and encryption/decryption processes … Read more
Follow + Star “Embedded Development Notes”, so you won’t miss out on exciting content! Friends who often write code should have encountered inline functions and macro definitions. These two types of writing are frequently seen in many codes, especially in large codebases where strictness and standardization are required, allowing one to learn many clever techniques … Read more
In software development, performance analysis is a crucial aspect. It helps us identify bottlenecks in the program, allowing us to optimize code and improve execution efficiency. This article will introduce some commonly used performance analysis tools and methods, along with example code demonstrations. 1. The Importance of Performance Analysis In C programming, performance issues can … Read more
In ESP32 development, optimizing memory management is a key aspect of enhancing system performance and stability. Below are some memory management optimization strategies based on ESP32 features and common issues, covering heap memory configuration, peripheral optimization, static allocation, task stack management, and more: 1. Heap Memory Management Optimization 1.1 Initialize Heap Memory Manager ESP-IDF provides … Read more