带温度显示的数字时钟设计

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1、目录1前言....................................................................................................................................12功能描述与总体方案…....................................................................................................22.1功能描述...........................................

2、.......................................................................22.2系统组成....................................................................................................................23硬件设计...................................................................................................

3、..........................33.1时钟电路......................................................................................................................33.2复位电路......................................................................................................................33.3DS1302时钟电路........

4、...............................................................................................43.4DS18B20温度计电路.................................................................................................43.5按键电路....................................................................................

5、................................53.6显示电路.....................................................................................................................63.7闹铃模块电路.............................................................................................................74软件设计..................

6、...........................................................................................................84.1主函数流程图............................................................................................................84.218B20温度计流程图............................................................

7、.....................................94.3按键电路流程图.......................................................................................................105结语............................................