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1、课题名称：单片机应用指导教师：系别：电子信息系专业：应用电子技术班级：姓名：目录封面·········································································1任务书·······································································2目录·········································································3第一章智能电子时钟的设计内容·············

2、···································4（1.1）电子时钟设计思路························································4（1.2）电子时钟的程序流程图····················································5（1.3）电子时钟原理图··························································6（1.4）电子时钟的功能说明···································

3、···················7第二章电子时钟的硬件内容····················································8（2.1）时钟插件指引图·························································8（2.2）时钟零件清单···························································9（2.3）焊接完毕的电子时钟····················································10

4、第三章电子时钟的软件设计····················································11（3.1）倒计时版本····························································11（3.2）闹钟版本······························································12毕业设计小节································································13致谢·········

5、·······························································14主要参考文献································································15第一章智能电子时钟设计内容1.1电子时钟的设计思路1.要达到的目的①利用51单片机及数码管实现时钟的基本功能。②在6个数码管上显示年月日、并可切到时分秒。①利用4个按键，实现年月日及时分秒的调整。②能设置一组闹钟。③能实现秒表功能。2.关键问题的解决①6个数码管的动态扫描。②走时需要使用定时中断，以确保精度。③四

6、个功能模块需要重复利用6个数码管来显示，需要组织好复杂的逻辑。1.2电子时钟的程序流程图1.3电子时钟的原理图1.4电子时钟的功能说明操作说明：4个按键依次为：ModeSetUpDown模式选择：按Mode键，选择不同的功能，依次为：时间à秒表à倒计时à日期时间调整：按Mode键进入时间模式按Set切换要设置的时分秒，按Up或Down对闪烁位置的时间进行设置。秒表功能：按Mode键进入秒表模式按Up键启动秒表在秒表计时过程中按Up键，暂停跑时。再按Up将继续跑时。在暂停跑时状态下按Set键，重置秒表时间。倒计时功能：按Mode键进入倒计时功能。按Set键切换时à分à秒à准备。在时分

7、秒用Up或Down键设置倒计时的时间长度。在准备状态下按Down或Up键启动日期功能：按Mode键进入日期功能。按Set键切换年—月—日，按Up或Down进行调整。第二章电子时钟的硬件内容2.1时钟插件指引图2.2时钟零件清单CLK01BOMNODescriptionCommentDesignatorQuantity1电池盒BATTERYBT112蜂鸣器BUZZBZ113电容0.1C1,C424电容22pC2,C325电解电容100uFCx116数码管seg-2-10