目 录
1 前言........................................................................................................................................................................1
1.1 设计思想来源.................................................................................................................................................1
1.2 设计任务.........................................................................................................................................................1
1.3 主要性能指标和功能介绍.............................................................................................................................1
2 总体方案设计........................................................................................................................................................2
2.1 两种方案.........................................................................................................................................................2
2.1.1
方案一
......................................................................................................................................................2
2.1.2
方案二
......................................................................................................................................................3
2.2 方案论证.........................................................................................................................................................3
2.2.1
方案一的简单分析
.................................................................................................................................3
2.2.1
方案二的简单分析
..................................................................................................................................4
2.3 方案选择.........................................................................................................................................................4
3 硬件电路板的设计................................................................................................................................................5
3.1 单片机的简介.................................................................................................................................................5
3.2 电源部分的设计.............................................................................................................................................6
3.3 单片机控制 LED 显示电压部分的设计.......................................................................................................8
3.5 单片机控制继电器部分的设计...................................................................................................................10
4 软件程序的设计..................................................................................................................................................11
5 系统的调试..........................................................................................................................................................16
5.1 C 语言程序的调试.......................................................................................................................................16
5.2 程控电路板的调试.......................................................................................................................................16
5.2.1
调试所得数据的误差分析
....................................................................................................................18
6 设计的总结与体会..............................................................................................................................................19
7 参考文献..............................................................................................................................................................20
附录 1：..................................................................................................................................................................21
调试数据：.............................................................................................................................................................21
.................................................................................................................................................................................23
附录 2：..................................................................................................................................................................23
