说明：  以arm框架的嵌入式微处理器及uc/os的嵌入式操作系统为核心，介绍了嵌入式开发的原理，设计方法和实例编程
(To arm the framework of embedded microprocessor and uc/os of the embedded operating system as the core, introduced the principle of embedded development, design methods and examples of programming)