摘　要: 　在单片机中移植嵌入式操作系统是嵌入式系统发展的一个热点,也是未来发展的方向.

介绍嵌入式操作系统在单片机应用的优势和μC/ OS2 Ⅱ的特点,并结合AVR 单片机的应用实例,分

析μC/ OS2 Ⅱ的移植过程和基本方法. 采用μC/ OS2 Ⅱ可以大大简化程序设计,满足实时要求,降低

开发难度,提高系统可靠性.-Abstract: The transplantation of single-chip embedded system Embedded operating system is a hot development, but also the direction of future development. Introduced single-chip applications in the embedded operating system' s advantages and μC/OS2 Ⅱ characteristics, combined with AVR the application of single-chip, analysis of μC/OS2 Ⅱ transplant process and the basic method. using μC/OS2 Ⅱ can greatly simplify the programming, to meet the real-time requirements, the difficulty of reducing development to improve system reliability.