MUTEX

Learning FreeRTOS Code (Part Four)

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Learning FreeRTOS Code (Part Four)

•STM32 Cube Software Package Code Structure ARM has added a middleware layer, CMSIS_RTOS/cmsis_os.c, to ensure compatibility with various operating systems. Taking the STM32L4XX MCU software package as an example, other FreeRTOS release code files are located at this path: STM32Cube_FW_L4_V1.18.0\Middlewares\Third_Party\FreeRTOS\Source •vTask/xTask/eTask Online explanations state that both vTask and xTask are tasks within the FreeRTOS system, … Read more

Thread Synchronization and Mutex Mechanisms in C Language

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Thread Synchronization and Mutex Mechanisms in C Language

Thread Synchronization and Mutex Mechanisms in C Language In multithreaded programming, multiple threads may access shared resources simultaneously, which can lead to data inconsistency and unpredictable program behavior. To avoid these issues, we need to use thread synchronization and mutex mechanisms. This article will detail several commonly used synchronization and mutex mechanisms in C language, … Read more

How to Solve Priority Inversion in FreeRTOS?

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How to Solve Priority Inversion in FreeRTOS?

In embedded systems, real-time operating systems (RTOS) like FreeRTOS are widely used for managing multitasking scheduling. However, priority inversion is a common issue that can cause high-priority tasks to be delayed by low-priority tasks, affecting the system’s real-time performance. This article will delve into the causes of priority inversion, utilizing mechanisms provided by FreeRTOS, and … Read more

Multithreaded Programming in C: Thread Creation and Synchronization

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Multithreaded Programming in C: Thread Creation and Synchronization

In modern computing, multithreaded programming is a common technique that allows programs to execute multiple tasks simultaneously, thereby improving efficiency and responsiveness. The C language provides robust multithreading support through the POSIX threads (pthread) library. This article will detail how to create and manage threads in C, as well as how to synchronize them. 1. … Read more

Implementation Methods of Thread Synchronization Mechanisms in C Language

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Implementation Methods of Thread Synchronization Mechanisms in C Language

Implementation Methods of Thread Synchronization Mechanisms in C Language In multithreaded programming, synchronization between threads is an important issue. When multiple threads access shared resources simultaneously, the absence of appropriate synchronization mechanisms can lead to data inconsistency or program crashes. This article will introduce several common thread synchronization mechanisms in C language, including mutexes, condition … Read more

Threads and Concurrency Programming in C++11

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Threads and Concurrency Programming in C++11

Threads and Concurrency Programming in C++11 Introduction In modern software development, with the prevalence of multi-core processors, it has become increasingly important to write programs that can effectively utilize multi-core features. C++11 introduces built-in support for multi-threading and concurrency programming, making it easier for us to create and manage threads. This article will gradually introduce … Read more

Practical C++ Multithreading Programming

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Practical C++ Multithreading Programming

Practical C++ Multithreading Programming Introduction C++ is a powerful programming language that excels not only in system-level programming and game development but also supports multithreading. Multithreading can improve the responsiveness and processing capability of programs, allowing them to execute multiple tasks simultaneously. In this tutorial, we will delve into multithreading programming in C++, including how … Read more

Multithreading Interview: Interview Questions on Thread Synchronization and Communication in C

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Multithreading Interview: Interview Questions on Thread Synchronization and Communication in C

Multithreading Interview: Interview Questions on Thread Synchronization and Communication in C In multithreaded programming, thread synchronization and communication are very important topics. These concepts not only help programmers avoid data conflicts but also ensure effective collaboration between multiple threads. This article will explain these fundamental concepts in detail and demonstrate their implementation in C language … Read more

Introduction to Semaphores in VxWorks 7

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Introduction to Semaphores in VxWorks 7

Overview of Semaphores in VxWorks 7 In real-time operating systems (RTOS), semaphores are an important synchronization mechanism used to manage resource access and task synchronization in a multitasking environment.VxWorks 7 provides various types of semaphores to meet different application scenario requirements, mainly including: • Mutex Semaphores: Ensure mutual access to shared resources. • Binary Semaphores: … Read more

Practice! 3 Classic Embedded Linux Interview Questions

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Practice! 3 Classic Embedded Linux Interview Questions

Click on the above “Baibai Technology” and select “Pin to Public Account” Embedded essentials delivered instantly Question 1: Briefly describe the differences between memcpy and strcpy? Question 2: What are the differences between semaphores and mutexes? Question 3: Briefly describe the process of program compilation? Answer to Question 1: (1) The content copied is different. … Read more