Comprehensive Analysis of String Handling Functions in C Language In C language, strings are stored as arrays of characters and are terminated with a null character <span>'\0'</span>. The C standard library provides a series of functions to handle strings, which are defined in the header file <span><string.h></span>. This article will detail commonly used string handling … Read more
Follow usLearn Embedded Together, learn and grow together In C language, <span>void*</span> is a special pointer type known as “generic pointer” or “untyped pointer”. Unlike regular pointers, void pointers are not associated with any specific data type, which gives them unique flexibility and a wide range of applications. Core Advantages 1. Strong Generality, Can Point … 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
01Introduction: When developing with microcontrollers, issues related to RAM or FLASH usage often arise. Below, we analyze the factors affecting RAM and FLASH usage and how to optimize them. 02Analysis of RAM Usage Factors 1. Variable Storage Global Variables/Static Variables (Global Lifetime) uint32_t global_counter = 0; // Initialize global variable (occupies .data segment RAM) uint8_t … Read more
Comprehensive Guide to the ESP32 Memory System: A Beginner’s Guide to Avoiding Pitfalls from Crashes to Mastery When your program crashes for the 10th time, and the serial output shows a red warning of “memory overflow”—Don’t panic! This might be a rite of passage for every ESP32 developer.Today, let’s clear the fog and accurately allocate … Read more
Introduction In the previous issue, we used the example of smartwatches to help you quickly understand how LSTM manages health data like a “memory master.” But did you know? Behind the power of LSTM lies a set of intricate mathematical formulas! Today, we will break down these formulas in the simplest language, allowing you to … Read more
🧠 1. Physical Storage Structure On-Chip Memory IRAM (Instruction RAM) 192KB (ESP32 classic version), with the first 64KB fixed for dual-core CPU cache, and the remaining space used for high-speed execution code (such as interrupt functions). DRAM (Data RAM) 328KB, used for global variables and stack data. About 64KB will be occupied by the protocol … Read more
01 What is a Destructor A destructor is a member function of a class, named with a tilde followed by the class name, has no return value, and does not accept parameters. A class can only have one destructor. When an object is created, the system automatically calls the constructor for initialization, and similarly, when … Read more
1. Concept of Memory Management Memory management is a critical function in computer systems, responsible for managing memory resources within the system. The goal of memory management is to ensure that all programs in the system can access the required memory without issues such as memory conflicts or memory leaks. Memory management includes operations such … Read more
Follow【Plain Embedded】，Exciting content delivered first Memory overflow is one of the most common and dangerous issues in embedded system development, which can lead to system crashes, data corruption, and even security vulnerabilities. This article will delve into the types, hazards, and systematic preventive measures for memory overflow in embedded environments. Major Types of Memory Overflow … Read more