通过对鼠标底层通信原理及协议的深入分析，探讨了鼠标在单片机系统中的应用价值与可行性，并介绍了鼠标接口软件设计的原理及方法，给出了单片机与Microsoft鼠标的具体接口程序。-bottom of the mouse Communication Theory and in-depth analysis of the agreement to explore a mouse in the SCM system of value and viability, and introduced a mouse interface software design principle and the method of the SCM and Microsoft mouse interface to the specific procedures.