一本很好的英文书籍，主要讲解单片机uCOSII操作系统，英文原版。-A very good English books, mainly to explain microcontroller uCOSII operating system, the English original.

安富莱电子原创RTX操作系统教程，配套STM32F103和STM32F407开发板。本章教程为大家讲解RTX运行模式的一个重要知识点，特权级模式和非特权级模式，有些资料或者书籍将非特权级模式称为用户模式。-Armfly Electronic Original RTX operating system tutorials, supporting STM32F103 and STM32F407 development board.

凤舞天(网名)大牛写的书籍，提供了一种单片机系统的架构和模板，对于复杂的单片机系统设计非常实用，同时也可以用来初步理解嵌入式操作系统。(This is a book written by Fengwutian(nick name online). It provides a kind of architecture and template for MCU system program. It is very useful for complicated MCU system program d