目录
摘要................................................................1
第 1 章 绪论........................................................2
1.1 温度控制系统 ............................................................................................................2
1.1.1 温度控制系统的发展现状................................2
1.1.2 温度控制系统的原理与实现..............................3
1.2 单片机技术.................................................................................................................3
1.2.1 单片机的定义和作用....................................3
1.2.2 嵌入式系统技术........................................4
1.3 课题的目的及意义...................................................................................................5
第 2 章 系统方案设计................................................6
2.1 总体方案设计 ............................................................................................................6
2.2 关键部分设计 ............................................................................................................7
第 3 章 系统硬件的选择..............................................8
3.1 单片机的功能特性和引腿信号 ............................................................................8
3.2 时钟电路 .....................................................................................................................9
3.3 复位电路 ...................................................................................................................10
3.4 显示电路 ...................................................................................................................11
3.5 加热和降温控制电路 ............................................................................................12
3.6 键盘电路 ...................................................................................................................14
3.7 温度传感器...............................................................................................................15
3.8 系统硬件设计原理图 ............................................................................................16
第 4 章 各模块软件程序设计.........................................17
4.1 片内 RAM 初始化子程序........................................................................................17
4.2 片外 RAM 初始化子程序........................................................................................17
4.3 片外 RAM 初始化子程序(双字节个单元)........................................................17
4.4 键盘及显示程序：.................................................................................................18
4.5 温度检测部分单片机程序 ...................................................................................21
4.6 模数转换测量子程序 ............................................................................................25
第 5 章 参考文献...................................................28
