VxWorks is a leading real-time operating system (RTOS) developed by Wind River Systems, widely used in embedded systems that require deterministic performance. With the release of VxWorks 7, the operating system has been redesigned with a focus on modularity, scalability, and support for modern hardware, including advanced graphics capabilities. Although WindML (a graphics library common … Read more
When it comes to embedded real-time operating systems (RTOS), names like FreeRTOS and uC/OS may come to mind. However, many may not be aware of the domestic embedded operating systems available. Below, I will introduce several mainstream domestic embedded operating systems, which are also embracing the development of the Internet of Things (IoT) and transforming … Read more
In today’s rapidly advancing technology, embedded systems have permeated our daily lives, from smart homes to automotive electronics, they are everywhere. Behind these complex systems, Real-Time Operating Systems (RTOS) provide strong support. Today, we will delve into the importance of RTOS, its basic elements, and some commonly used open-source RTOS. Why Use RTOS in Embedded … Read more
1. Basic Entry: Building a Knowledge Framework (1) Programming Language: C is the foundational language for embedded development and must be mastered proficiently. Its advantages lie in its proximity to hardware and high execution efficiency. When learning, it is essential to deeply understand basic syntax, such as variables, data types, operators, and control statements, as … Read more
1. Limitations of Traditional Programming Structures When not using an RTOS, embedded software typically employs two traditional programming structures: one is called the “foreground-background structure” or “super loop structure,” which is essentially an event-triggered programming method, and the other is a time-triggered programming method, as described in Michael J. Pont’s “Time-Triggered Programming Model.” In practical … Read more
Super-Simple-Tasker (SST) is an event-driven, preemptive, priority-based real-time operating system (RTOS) kernel that fully complies with Rate Monotonic Analysis/Scheduling (RMA/RMS) requirements. Its design aims to help developers easily build efficient and reliable embedded applications. The following sections introduce the core features of SST, its implementation, usage examples, and how to get started. Core Features of … Read more
Microcontroller RTOS Real-Time Task Scheduling: Multi-Task Cooperation and Priority Management Today, we will discuss something “advanced”: the Real-Time Operating System (RTOS) for microcontrollers.If you have used a microcontroller to run bare-metal code, you may have encountered the problem of needing to handle multiple tasks simultaneously, such as key detection, sensor data collection, and serial communication. … Read more
Hello everyone, I am the Mixed Content Master. This time we share a commonly used concept/programming model in embedded systems—the Observer Pattern. Overview of the Observer Pattern The Observer Pattern is a behavioral design pattern that focuses on establishing a dynamic subscription-notification mechanism between objects. It defines a one-to-many dependency between objects, so that when … Read more
I am Lao Wen, an embedded engineer who loves learning.Follow me, and let’s become better together! The first step is to look at embedded issues from the perspective of PC programming; the second step is to learn to think in embedded programming; the third step is to combine PC and embedded thinking and apply it … Read more
Green Hills Software has announced a collaboration with NXP® Semiconductors to provide integrated hardware and software solutions for the development and deployment of safety-focused hybrid-critical Software Defined Vehicle (SDV) regional architectures. This solution is built on NXP’s new S32K5 microcontroller (MCU) series. It integrates Green Hills’ ASIL D safety-certified µ-velOSity™ real-time operating system (RTOS), µ-visor® … Read more