This issue: A group friend asked a question in the group: In FreeRTOS, a high-priority task changed the value of a global variable, while a low-priority task was waiting in a loop for the value to change; why did the low-priority task not exit the loop and continue execution after the high-priority task changed the … Read more
Author | strongerHuang WeChat Official Account | Embedded Column In RTOS multi-task programming, it is common for multiple tasks to access the same hardware (such as UART, I2C, etc.). If not handled properly, it can lead to a “chaotic” situation. There are many methods to handle the “chaotic” situation. Below, based on FreeRTOS, I will … Read more
You may often see multi-core CPUs in phones and computers, but multi-core microcontrollers are relatively rare. With the increasing demand and technological advancements, microcontrollers are no longer limited to single-core, and in recent years, dual-core microcontrollers have emerged. You might be curious about how dual-core microcontrollers communicate with each other. In fact, there are many … 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+Star Public Number, don’t miss wonderful content Source | McuLover666 1. Knowledge Point Consolidation 1.1. Knowledge Point Consolidation The three major elements of a task: task control block, task stack, task entry function, here you can refer to the article: How to write RTOS tasks? 1.2. Doubly Circular Linked List A doubly linked list is … Read more
Follow+Star PublicAccount, don’t miss the wonderful content Source | Network With the comprehensive coverage of basic networks, the Internet of Things (IoT) has developed rapidly, and the number of IoT terminal devices is increasing. This article will discuss the next generation of hybrid DSP technology equipped with RTOS, which is the best choice for the … Read more
LingShun Lab (lingshunlab.com) mainly introduces how to use multithreading with FreeRTOS on the ESP32. What is Multithreading? It refers to the technology of implementing multiple threads to execute concurrently from software or hardware. Computers with multithreading capabilities can execute more than one thread at the same time due to hardware support, thereby improving overall processing … Read more
For a long time, embedded operating systems have been the foundational software for communication, automobiles, consumer electronics, and aerospace. With the rapid development of the Internet of Things and artificial intelligence, embedded operating systems are playing an increasingly significant role in intelligent systems. Amidst the turbulent international political and economic environment, domestic embedded operating systems … Read more
Follow +Star Public Account Number, don’t miss the wonderful content Author | strongerHuang WeChat Public Account | Embedded Column In many operating systems, there is a type of API function interface: HOOK functions (also known as hook functions). For example: HOOK functions can be found in Windows desktop operating systems, µC/OS, FreeRTOS and other real-time … Read more
Follow+Star Public Account, don’t miss out on exciting content Source | Microtech Technology Transitioning from software development with a front-back architecture to using Real-Time Operating Systems (RTOS) can be a challenging task. However, there are many advantages to using RTOS, such as simplifying application integration and supporting task preemption scheduling. It becomes meaningful to use … Read more