目录
摘要 ........................................................................................................................................I
Abstract..................................................................................................................................II
前 言....................................................................................................................................III
1 LED 点阵电子万年历的总体设计 .................................................................................1
1.1 LED 点阵电子万年历的设计要求 .................................................................................1
1.2 LED 点阵电子万年历的设计方案 ..............................................................................1
2 LED 点阵电子万年历的系统硬件设计和组成 .............................................................2
2.1 主控单元模块...............................................................................................................3
2.2 时钟晶振单元模块.......................................................................................................5
2.3 复位电路模块...............................................................................................................6
2.4 时钟电路模块...............................................................................................................7
2.5 移位寄存器电路模块...................................................................................................9
2.6 显示电路模块.............................................................................................................12
2.7 译码器电路模块.........................................................................................................14
2.8 按键电路模块.............................................................................................................16
3 LED 点阵电子万年历的系统软件设计 .......................................................................17
3.1 系统主程序流程图.....................................................................................................17
3.2 时间调整流程图.........................................................................................................19
4 软件调试........................................................................................................................20
结论......................................................................................................................................21
致谢......................................................................................................................................22
参考文献..............................................................................................................................23
