本文详细介绍了把μC/OS-Ⅱ移植到ATMEL公司的8位微控制器ATmega128上的全过程。所谓移植，就是使一个实时内核能 某个微处理器或微控制器上运行。在移植之前，希望读者能熟悉所用微处理器和C编译器的特点。-This paper describes the μC/OS- Ⅱ transplanted to the ATMEL 8-bit microcontroller ATmega128 on the whole process. The so-called transplant, is to make a real-time kernel to a microprocessor or micro-controllers. Before migration, I hope readers can familiarize themselves with the microprocessor and C compiler features.