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湖北师范学院 2009 届物理与电子科学学院学士学位论文(设计)
目录
摘 要.....................................................................................................................1
1 前言......................................................................................................................2
2 等精度频率测量原理分析.................................................................................3
2.1 等精度频率测量原理..............................................................................3
2.2 等精度频率测量的误差分析..................................................................4
3 系统方案.............................................................................................................5
3.1 方案提出及比较......................................................................................5
3.2 系统整体方案...........................................................................................6
3.3 单片机与 CPLD 连接方案 ......................................................................7
3.4 单片机定时及数据处理方案..................................................................8
3.5 CPLD 计数方案 .......................................................................................9
4 方案实现.............................................................................................................9
4.1 CPLD 设计 ...............................................................................................9
4.2 单片机设计.............................................................................................12
4.3 关键源代码分析.....................................................................................13
5 仿真及测试.......................................................................................................14
5.1 仿真分析.................................................................................................14
5.2 测试结果与分析....................................................................................15
6 致谢...................................................................................................................16
参考文献...............................................................................................................17
**********学士学位论文(设计)评审表.......................................................18