目 录
第一章 绪论 ..............................................4
1.1 选题目的 .................................................................................................4
1.2 FPGA 的发展历程 ............................................................................4
1.2.1 FPGA 的优点 .................................................................................5
1.3 器件及工具介绍 ...............................................................................5
1.3.1 QuartusⅡ设计步骤........................................................................5
第二章 系统方案设计 ......................................5
2.1 设计方案分析与选择 .............................................................................5
2.2 自动打铃器总体构成 .............................................................................6
2.3 分频模块设计 .........................................................................................7
2.4 消抖模块设计 .........................................................................................8
2.5 时钟模块设计 .........................................................................................8
2.5.1 秒计数模块 ....................................................................................9
2.5.2 分计数模块 ....................................................................................9
2.5.3 时计数模块 ..................................................................................10
2.5.4 调时模块 ............................................................................................11
2.6 闹钟模块设计 .......................................................................................12
2.6.1 定时模块 ......................................................................................12
2.6.2 比较模块 ......................................................................................13
2.7 打铃模块设计 .......................................................................................15
2.8 报警模块设计 .......................................................................................17
2.8.1 报警时长设定模块 ............................................................................17
2.8.2 蜂鸣器发声模块 ..........................................................................17
2.9 显示模块设计 .......................................................................................18
2.9.1 时间切换模块 ..............................................................................18
2.9.2 动态扫描模块 ..............................................................................20
2.10 按键电路设计 ...............................................................................22
第三章 实验结果分析 .....................................22
3.1 测试过程 ...............................................................................................22
3.2 结果分析 ...............................................................................................23
参考文献 .................................................25
附 录 ...................................................26
摘 要
