1-200秒倒计时报警器设计单片机课程设计.doc

课程设计说明书 目录 第一章 系统概述 　　　1.1 设计目的 ............................................................................ ............................... 1 　　　1.2 设计内容.................................................................... ...........................................1 　　　1.3 设计要求.................................................................... ...........................................1 第二章 系统方案 ............................................................................ ..................................2 　　　2.1 总体方案............................................................... ................................................2 　　　2.2 方案组成.................................................................... ...........................................2 第三章 软件设计.................................................................... ................................................3 　　 3.1 主程序设计.................................................................. ...........................................3 　　 3.1.1 倒计时模块.................................................................. ....................................... 4 　　 3.1.2 键盘扫描模块................................................................ ......................................4 　　 3.1.3显示程序模块........................................................... ............................................5 3.1.4 实施结果.................................................................... ..........................................6 第四章 总结体会.................................................................... ................................................6 　　　4.1设计心得及体会..................................................... ...............................................6 　　　4.2 参考文献.................................................................... ...........................................7 附录程序清单.............................................. ...........................................................................8