First, let me clarify that MPU has many meanings, and there are two common ones: MPU:Memory Protection Unit; MPU:Microprocessor Unit; Additionally, some may associate it with modules like MPU-6050. So, please do not confuse MPU. Why Use MPU? If you develop embedded projects that suffer significant economic losses or major accidents due to memory overflow … Read more
In business, “must” represents the minimum requirements for market participation. Today, there are over a hundred open-source and commercial RTOS in the embedded market, most of which lack functional safety certification. Given this, it is clear that RTOS functional safety certification is not yet a “must” today, but perhaps it should be. RTOS is the … Read more
32-bit ARM Cortex-M microcontrollers are widely used in various embedded systems and applications due to their low power consumption, high performance, and multifunctional features. These microcontrollers are utilized across a wide range of industries and applications. Here are some common applications of 32-bit ARM Cortex-M microcontrollers: Internet of Things (IoT) Devices: IoT sensors and nodes … Read more
1、reboot means to restart. 2、source makes the modified files take effect immediately, avoiding the problem of having to restart for the changes to take effect. For example, if we modify /etc/profile, the changes will not take effect immediately. In this case, we can enter source /etc/profile to apply the changes. There will be more updates … Read more
Follow+Star PublicNumber, don’t miss the wonderful content Author | strongerHuang WeChat Public Account | Embedded Column Some readers might ask: Can FreeRTOS create tasks and delete tasks? Is it dynamically allocated memory? xTaskCreate(LED_Task, "LED_Task", 128, NULL, 6, NULL); If we want to elaborate on this question, there are many related knowledge points involved. Below are … Read more
3.3.1 Bluetooth Command Settings Knowledge The embedded Bluetooth serial communication module allows us to break free from the constraints of cables and achieve wireless serial communication within a limited range, with two working modes: command response mode and automatic connection mode. In automatic connection mode, the module can be divided into three roles: Master, Slave, … Read more
关注+星标公众号，不错过精彩内容 作者 | strongerHuang 公众号 | strongerHuang Many embedded developers have such doubts: What is the difference between RTOS and Linux? RTOS: Real-Time Operating System, refers to an operating system that can accept and process external events or data at a fast enough speed when they occur, and the results of the processing can control … Read more
Follow+Star Public Account, don’t miss out on exciting content Author | strongerHuang WeChat Public Account | Embedded Column Generally speaking, when programming on microcontrollers, either assembly or C language is used, and it is rare to develop with C++. So why is it not recommended to use C++ for microcontroller development? Below, I will discuss … Read more
Abstract: Today, we will discuss the doubly linked list by combining the source code of FreeRTOS’s linked list. Note: A linked list item is a node, and a node is a linked list item; they refer to the same thing, and it doesn’t matter what you call it. 1. Defining the Linked List Structure // … Read more
“工控有得聊”是机械工业出版社“机工工控”“机工通信”品牌旗下专业资讯和服务平台，致力于帮助读者在电气、通信、自动化领域里，紧跟前沿资讯，掌握核心技术，快速提升专业素养。点击蓝色微信名可快速关注我们！ If you aspire to become a modern embedded systems engineer, you need to determine the system architecture at the beginning of all projects.The system architecture includes two aspects: hardware and software.The hardware part not only determines the complexity and cost of the system but also affects how the subsequent software logic is implemented.Moreover, once … Read more