Instructor Introduction Wei Dongshan | Graduated from University of Science and Technology of China, with dual degrees in Electronics and Computer Science. 2005-2007 Worked at ZTE Corporation in embedded Linux development, achieving S-level performance. 2008 Published “Complete Handbook of Embedded Linux Application Development”, which has been a bestseller in the embedded field. 2008-2011 Served as … Read more
Recently, a reader asked this question: Why is the default configuration of the RTOS system tick (Tick) 1000? Can I set it to 100, 10000, or 2000? Many beginners have this question, including myself when I first learned about RTOS. I was confused about the different values for tick configuration and their impacts. Today, let’s … Read more
I am Wei Dongshan, and I have been engaged in embedded Linux training for a long time. Recently, I plan to serialize a series of articles. I am recording a brand new embedded Linux video, using a new approach, starting no longer from bare metal/uboot, which is more efficient. The corresponding documentation will also be … Read more
This is about building a simple smart home system. I have created a small box for this smart home system, aimed at providing a convenient way to control regular household appliances, allowing control of lights, water heaters, fans, doors, air conditioners, etc., when connected to the internet via a mobile phone. The hardware components of … Read more
Follow Baiwen Technology, choose to pin or star Don’t miss any exciting content — Author: Embedded Veteran Huo Ge Authorized reprint from the WeChat public account of Embedded Veteran’s Career Path (ID: ict_embedded), with added content and modifications. Recently many friends have voted and consulted on how to transition from microcontrollers to embedded Linux development. … Read more
Introduction: The AT device package for controlling wireless modems is one of the most popular extensions for RTOS. This article has 6145 words, reading time approximately: 7 minutes The AT device package for controlling wireless modems is one of the most popular extensions for RTOS. RTOS is an open-source embedded operating system, developed by RT-Thread. … Read more
Follow+Star Public Account, don’t miss the exciting content Author | strongerHuang WeChat Official Account | strongerHuang CMSIS: Cortex Microcontroller Software Interface Standard. It contains a lot of content: CMSIS-RTOS: Mainly used for RTOS API, providing a consistent software layer that can work with middleware and library components. CMSIS-DSP: A rich set of DSP functions optimized … Read more
Previously shared the article “What Features Were Updated in FreeRTOS V10.4.0?” and today we will elaborate on one of the knowledge points: FreeRTOS’s direct task (message) notification, aimed at reducing RAM usage and speeding up execution. 1. Introduction Almost all RTOS operating systems provide queue and semaphore functionalities, which are essential skills for most beginners. … Read more
Queue Characteristics A queue can hold a limited number of data units of a defined length. The maximum number of units that a queue can hold is referred to as the queue’s “depth”; this depth and the size of each unit must be set when the queue is created. Typically, queues are used as FIFO … Read more
FreeRTOS is a popular, free, open-source real-time operating system (RTOS) widely used in various embedded systems. It is known for its lightweight, ease of use, portability, and powerful features, making it the preferred RTOS for many embedded developers. This article will delve into the features, functionalities, and application scenarios of FreeRTOS. What is a Real-Time … Read more