目录
摘 要 ..........................................................................................................................................I
目录 ...........................................................................................................................................II
第一章 绪论 .............................................................................................................................1
第二章 系统总体设计 .............................................................................................................2
第三章系统硬件设计 ...............................................................................................................3
3.1 系统电源设计 ................................................................................................................3
3.2 信号采集变换部分.........................................................................................................3
3.3 信号处理部分 ................................................................................................................4
3.4 串口通信电路 ................................................................................................................5
3.5 人机交互界面 ................................................................................................................6
3.6 输出部分 ........................................................................................................................8
3.7 系统硬件部分的抗干扰设计.........................................................................................9
第四章 系统软件设计 ...........................................................................................................10
4.1 主程序 ...........................................................................................................................10
4.2 A/D 采样子程序 .........................................................................................................11
4.3 温湿度控制子程序.......................................................................................................12
4.4 动态显示子程序...........................................................................................................15
4.5 键盘子程序 ..................................................................................................................17
4.6 串口通信协议 ..............................................................................................................19
4.6.1 单片机的通信程序 ...............................................................................................19
4.6.2 PC 机发送和接收数据的程序设计 ....................................................................22
4.7 软件部分的抗干扰的设计...........................................................................................25
第五章 结论 ...........................................................................................................................26
致谢 .........................................................................................................................................27
