CHANGSHAUNIVERSITYOFSCIENCE&TECHNOLOGY现代电子系统设计综合实习题目:电子时钟学生姓名:张家庆学号:201257050113班级:电子1201专业:电子信息工程指导教师:贺科学范必双袁志辉目录1电子时钟简介...........................................................................................................................11.1电子时钟概念.....................................................................................................................11.2电子时钟设计要求.............................................................................................................12控制系统的硬件设计...............................................................................................................22.1硬件电路的总体框图.........................................................................................................32.2AT89C52单片机模块..........................................................................................................32.3液晶屏显示模块................................................................................................................52.4储存芯片模块.....................................................................................................................62.5蜂鸣器模块.........................................................................................................................72.6键盘电路模块.....................................................................................................................72.7晶振模块.............................................................................................................................83控制系统的软件设计...............................................................................................................83.1软件的总体流程图.............................................................................................................83.2液晶屏................................................................................................................................93.3键盘扫描...........................................................................................................................113.4蜂鸣器..............................................................................................................................123.5存储芯片...........................................................................................................................133.6软件仿真结果...................................................................................................................154实习总结...................................................................................................................................165参考文献...................................................................................................................................17附录A硬件电路原理图..........................................................................................................18附录B源程序代码...................................................................................................................191电子时钟简介1.1电子时钟概念电子钟是一种利用数字电路来显示的计时装置,与传统的机械钟相比,它具有走时准确、显示直观、无机械传动装置等优点,因而得到广泛应用。随着人们生活环境的不断改善和美化,在许多场合可以看到数字电子钟。1.3...