在ARM9嵌入式硬件开发平台和μC/OS-II的软件开发框架下，实现一个还有AD转换，按键，LCD等硬件功能的实时多任务的简单贪吃蛇的设计。(In the ARM9 embedded hardware development platform and the C/OS-II software development framework, to achieve a AD conversion, buttons, LCD and other hardware functions of real-ti