Computer memory, is the temporary storage area of a computer, which holds the data and instructions needed by the Central Processing Unit (CPU). The instructions, which refer to specific operations of the processor, are defined by the Instruction Set Architecture, which typically includes four types of instructions: arithmetic, logic, data movement, and control flow. Before … Read more
Building Real-Time Operating Systems with C Language In modern embedded systems, a real-time operating system (RTOS) is a crucial component. It ensures that the system completes tasks within a specified time, suitable for time-critical applications such as industrial control, automotive electronics, and medical devices. This article will introduce how to build a simple real-time operating … Read more
HeliOS is an open-source, free embedded multitasking kernel designed for various low-power embedded devices. It offers a rich, well-documented API that allows fine control over the system and access to kernel services (system calls), enabling functionalities such as task management, scheduler management, inter-process communication, memory management, and device management, all while maintaining a minimal memory … Read more
This is a document I found online, where the author’s goal is to design a simple embedded operating system that implements a basic task scheduler. As the author mentioned, although it cannot be called an operating system, it embodies the essence of a small embedded operating system. This serves as excellent learning material for us, … Read more
Follow+Public Account Star, don’t miss wonderful content Author | strongerHuang WeChat Public Account | Embedded Column This is an old article, someone in the technical group was discussing this issue, so I am here to share it today. We all know the purpose of the hardware watchdog:it is used to monitor the system, prevent system … Read more
Previous Article: Understanding FreeRTOS Application Scenarios In this article, the term “stack” refers to the memory area accessed by the computer (including MCU) processor through the stack pointer register. Common access methods include Push/Pop, as well as indirect addressing based on the stack pointer register. Let’s first review how local variables are stored in C … Read more
Follow+Star Public Account Number, don’t miss the wonderful content Author | strongerHuang WeChat Public Account | strongerHuang Many embedded developers start from bare-metal programming and then move to RTOS. This article shares the basic principles of RTOS scheduling. During the job-hunting season in March and April, here are some embedded-related positions to recommend: It’s normal … Read more
Follow+Star Public Account Number, don’t miss exciting content Arrangement | strongerHuang WeChat Public Account | Embedded Column Operating systems are divided into preemptive kernels and non-preemptive kernels, so,RTOS belongs to which type? Let’s talk about the content of preemptive kernels and non-preemptive kernels. Non-Preemptive Kernels Non-preemptive kernels require each task (thread) to do something to … Read more
Follow our official account to never miss an update! Many friends who have been using bare-metal programming for a long time may have misunderstandings about many concepts when switching to learn RTOS. 1Introduction Most people do not understand some concepts in RTOS when they start learning real-time operating systems. They are often confronted with concepts … Read more
In embedded development, multitasking is key to improving system efficiency and functionality. For resource-constrained microcontrollers, traditional preemptive multitasking frameworks (like FreeRTOS) can be overly complex and resource-intensive. In this case, the lightweight cooperative multitasking scheduler TaskScheduler becomes an ideal choice. Introduction to TaskScheduler TaskScheduler is a library that provides cooperative multitasking capabilities for microcontrollers such … Read more