目录:
摘要:...................................................................................................................................... 1
前言:...................................................................................................................................... 1
1.系统方案设计.......................................................................................................................2
1.1 控制方式选择................................................................................................................2
1.2 微处理器型号选择.........................................................................................................3
1.3 整体方案设计................................................................................................................4
2.硬件设计...............................................................................................................................5
2.1 单片机最小系统.............................................................................................................6
2.2 传感器............................................................................................................................8
2.3 信号放大电路................................................................................................................9
2.4 键盘电路......................................................................................................................11
2.5 液晶显示电路..............................................................................................................11
2.6 A/D 转换电路及控制输出............................................................................................13
2.7 系统电源电路设计.......................................................................................................17
3. 软件设计............................................................................................................................19
3.1 软件系统设计..............................................................................................................19
4. 系统设计总结....................................................................................................................20
参考文献:............................................................................................................................ 21
1. 附页:............................................................................................................................22
1.系统设计总图.................................................................................................................23
2.系统核心程序.................................................................................................................24