目 录
摘 要........................................................II
1 设计目的....................................................1
2 设计要求....................................................2
3 设计内容....................................................3
3.1 电子时钟的工作原理.....................................3
3.2 系统硬件电路设计及元件 ................................4
3.2.1 AT89C51 芯片 .....................................4
3.2.2 DS1302 芯片 ......................................8
3.2.3 LCD1602 液晶显示 ...............................12
3.3 系统软件电路设计......................................15
3.3.1 系统流程图及源代码设计..........................15
总结与致谢...................................................18
参考文献.....................................................19
附录一.......................................................20
