Tip: For a better reading experience, it is recommended to read on a PC! 1 What are Concurrency and Race Conditions In Linux systems, concurrency refers to the situation where multiple execution units (processes, threads, interrupts, etc.) access shared resources simultaneously or alternately, while a race condition refers to the uncertain behavior or errors caused … Read more
1 Task Creation and Management Task Creation Use <span>xTaskCreate()</span> to create a task: BaseType_t xTaskCreate( TaskFunction_t pxTaskCode, // Task function (entry) const char * const pcName, // Task name (for debugging) configSTACK_DEPTH_TYPE usStackDepth, // Stack size (in words) void * const pvParameters, // Task parameters UBaseType_t uxPriority, // Priority (0~configMAX_PRIORITIES-1) TaskHandle_t * const pxCreatedTask // … Read more
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
This article will take you through the core concepts of Real-Time Operating Systems (RTOS) in a straightforward manner, gradually guiding you to create a small yet fully functional RTOS. We will cover the basic components of RTOS, task scheduling, portability, and task synchronization mechanisms. 1. Basic Components of RTOS A minimal RTOS typically includes the … Read more
01 Fundamentals of Real-Time Operating Systems (RTOS) Real-Time Operating System (RTOS) is an operating system (OS) designed to provide real-time application processes with data, typically without buffering delays. The key factors in an RTOS are minimal interrupt latency and minimal thread switching latency. The value of an RTOS lies in its response speed or predictability, … Read more
Click “Read the original text” to access more VxWorks resources VxWorks provides several different mechanisms for inter-task communication. The different methods available include: Semaphores Semaphores are the primary means of synchronization between tasks in VxWorks. There are three different types of semaphores: binary semaphores, counting semaphores, and mutex semaphores. Binary semaphores are used for simple … Read more