目录目录...................................................................11、摘要................................................................22、方案设计............................................................52。1 整体方案设计..................................................52.2 硬件方案设计...................................................52.3 硬件方案原理图.................................................63、硬件电路设计与分析..................................................73。1 CPU 时钟电路..................................................73.2 复位电路.......................................................73。3 数码管显示电路................................................83.4 按键接口电路...................................................93.5 LED 指示电路...................................................103。6 蜂鸣器接口电路...............................................104、软件设计...........................................................134。1 总体软件程序设计.............................................134。2 主程序设计...................................................144.3 数码管显示程序设计............................................144.4 时钟程序设计..................................................154。5 闹铃程序设计.................................................174。 6 模式程序设计................................................185 调试与测试..........................................................215。1 调试方法.....................................................215。2 测试结果......................................................216、技术总结...........................................................226。1 硬件方面......................................................226。2 方案设计方面..................................................226.3 编写延时程序方面...............................................226。4 电路图方面....................................................226.5 闹钟设计方面................
