The Core Role of the FreeRTOS Idle Task Maintaining Minimum System Operation Guarantee Automatically created after the scheduler starts, with the lowest priority (usually 0), ensuring that there is always a task for the system to execute. When all user tasks are blocked or suspended, the idle task takes over the CPU to avoid an … Read more
<span>FreeRTOS</span> configuration is implemented through macro definitions to control the behavior of the FreeRTOS kernel, with parameters designed in <span>FreeRTOSConfig.h</span>. Below is a detailed explanation of commonly used configurations. Scheduling Method Whether to enable preemptive scheduling <span>#define configUSE_PREEMPTION 1</span> : Enables preemptive scheduling (<span>preemptive scheduling</span>), allowing higher priority tasks to interrupt lower priority tasks. <span>#define … Read more
1. Basic Concepts <span>FreeRTOS</span> (Free Real-Time Operating System) is a lightweight open-source real-time operating system designed for embedded devices. It was developed by <span>Real Time Engineers Ltd.</span> and was acquired by Amazon in 2017, becoming part of Amazon FreeRTOS. FreeRTOS supports various architectures such as <span>ARM Cortex-M</span>, <span>RISC-V</span>, <span>AVR</span>, and <span>MIPS</span>, and is widely used … Read more
1. Download FreeRTOS Official Website https://www.freertos.org/ 2. Source Code Composition Directory Composition FreeRTOS-LTS ├── aws │ ├── aws-iot-core-mqtt-file-streams-embedded-c │ ├── device-defender-for-aws-iot-embedded-sdk │ ├── device-shadow-for-aws-iot-embedded-sdk │ ├── fleet-provisioning-for-aws-iot-embedded-sdk │ ├── jobs-for-aws-iot-embedded-sdk │ └── sigv4-for-aws-iot-embedded-sdk ├── CHANGELOG.md ├── CODE_OF_CONDUCT.md ├── CONTRIBUTING.md ├── FreeRTOS │ ├── backoffAlgorithm │ ├── coreHTTP │ ├── coreJSON │ ├── coreMQTT │ ├── … Read more
1. In my previous article, I wrote an introduction to the ESP32, and I think it is necessary to write this article, which mainly focuses on analyzing core dumps. This is similar to crash analysis in Android and Linux systems; it is interesting yet challenging. When we write code, we inevitably encounter some core dump … Read more
(Click the public account above to quickly follow) Source: oschina www.oschina.net/news/87778/2017-embedded-market-study The global electronics media group AspenCore released the 2017 Embedded Market Research Survey Report, with respondents mainly from North America (56.3%), Europe (25.2%), and Asia (10.6%). The complete report consists of 102 pages, and the download link is (http://m.eet.com/media/1246048/2017-embedded-market-study.pdf). Below are some slides extracted … Read more
Click below“Information Technology Person”Follow to explore information technology together Lists and List Items in FreeRTOS 1. Introduction to Lists and List Items (Familiarize) 1. What is a List Answer: A list is a data structure in FreeRTOS that conceptually resembles a linked list, used to track tasks in FreeRTOS. 2. What is a List Item … Read more
Author | strongerHuang WeChat Official Account | strongerHuangStrictly speaking, it should be the tracking and visualization analysis (debugging) tool based on FreeRTOS launched by Percepio:Percepio View for FreeRTOS.To help developers better understand the task execution status of FreeRTOS, it is necessary to use tools for task analysis.A tool we are quite familiar with is:Tracealyzer, which … Read more
Click the blue text above to follow us Whether you are a complete beginner or an experienced developer looking to expand your technical stack, the learning curve is definitely an important consideration when choosing a primary MCU. The ESP32 has rapidly gained popularity 🔥 due to its powerful Wi-Fi and Bluetooth capabilities and active community, … Read more
In the embedded field, embedded real-time operating systems are becoming increasingly widely used. Using an embedded real-time operating system (RTOS) can more reasonably and effectively utilize CPU resources, simplify application software design, shorten system development time, and better ensure the system’s real-time performance and reliability. FreeRTOS is a mini real-time operating system kernel. As a … Read more