The MPU (Memory Protection Unit) is an optional module in the Cortex-M core, allowing memory mapping (including Flash, RAM, and peripherals) to be divided into several regions, each assigned different access permissions. FreeRTOS-MPU is a secure version of FreeRTOS designed for MPU, supporting microcontrollers with ARMv7-M (Cortex-M3, Cortex-M4, and Cortex-M7) and ARMv8-M (Cortex-M23 and Cortex-M33) … Read more
Follow+Star public number, don’t miss the wonderful content Author | strongerHuang WeChat Public Account | Embedded Column Many commercial software requires a License to function properly; otherwise, one can only use illegal “*cracks” to use it. Many software libraries and source codes used by software engineers also need to comply with licenses. Here, I will … Read more
Introduction to FreeRTOS Interrupts The highest interrupt priority that can call interrupt-safe FreeRTOS API functions is determined by the interrupt service routine. Do not call interrupt-safe FreeRTOS API functions from any interrupt with a higher priority than this (the higher the priority, the lower the numerical value). The code is as follows (version FreeRTOS V202107.00): … Read more
Introduction In the previous article, we explained the concept of queues and the related API functions. In this article, we will start learning how to use queues. 1. Basic Usage of Queues This example will create three tasks, two of which send data to the queue, and the other reads data from the queue. void … Read more
FreeRTOS is a small, portable, open-source real-time operating system kernel, commonly used in embedded systems. Due to its lightweight design, it is very suitable for resource-constrained devices, such as microcontrollers. Here are some key features of FreeRTOS: Real-time Task Scheduling: Provides multiple task scheduling strategies to ensure that real-time tasks can be executed on time. … Read more
FreeRTOS Queue Usage Example This article aims to demonstrate the usage of queues in FreeRTOS. According to the description in this article, a simple usage of queues can be implemented. Experimental conditions: Basic knowledge of C language, with an integrated development environment such as Keil uVision5. Design Experiment In this experiment, we will continue to … Read more
Click the blue text to follow us Learn about IT-related people and events This issue of the 【Selected Good Articles】 column focuses on the technical field, selecting the top 5 high-quality software development articles from 51CTO media and blogs, helping tech professionals learn systematically from technical and ideological perspectives. Come grow together! Selected Good Articles … Read more
Recently, a friend and I discussed some strange aspects of the FreeRTOS code generated by STM32CubeMX. void LED01Tog(void const * argument){ /* USER CODE BEGIN LED01Tog */ /* Infinite loop */ for(;;) { HAL_GPIO_TogglePin(GPIOF,GPIO_PIN_10); osDelay(500); } /* USER CODE END LED01Tog */} We added two LED toggle functions, compiled our code, and found that the … Read more
Scan to FollowLearn Embedded Together, let’s learn and grow together FreeRTOS introductory tutorial has been delayed for too long. Recently, I plan to complete this series, while organizing my knowledge, I hope to help beginners quickly get started and master the basic principles and usage methods of FreeRTOS. Previously published two articles about FreeRTOS: FreeRTOS … Read more
Many students often ask whether they should learn FreeRTOS, if they need to learn both FreeRTOS and Linux, and which video resources are better. In this article, I will share my own learning experience! What is FreeRTOS? FreeRTOS is a type of RTOS, commonly referred to as a real-time operating system, which can achieve multi-task … Read more