目录
摘要... ... ... ... ... ... ... ... ... ... ... ... ... 1
第 1 章 主控单片机及温度传感器 .................................2
1.1 STC12C5A60S2 单片机简介 ....................................................2
1.1.1 STC12C5A60S2 系列单片机的主要特点 .........................................2
1.1.2 STC12C5A60S2 系列单片机的优点 .................................................3
1.1.3 STC12C5A60S2 单片机的管脚 .........................................................4
1.2 STC12C5A60S2 单片机的应用 ..............................................5
1.2.1 STC12C5A60S2 单片机 I/O 口工作模式设定..................................5
1.2.2 STC12C5A60S2 单片机的 A/D 转换 ................................................6
1.3 DS18B20 温度传感器.............................................................8
1.3.1 DS18B20 传感器的特性 ....................................................................8
1.3.2 DS18B20 的外形和内部结构 ............................................................8
1.4 DS18B20 的工作原理..............................................................9
第 2 章 系统总体设计 ..........................................11
2.1 电源输入部分 .......................................................................11
2.2 键盘及显示电路 ...................................................................12
2.2.1 键盘电路设计 ..................................................................................12
2.2.2 显示电路设计 ..................................................................................15
2.3 测温模块 ...............................................................................19
2.3.1 DS18B20 的工作时序 ......................................................................19
2.3.2 超温报警电路 ..................................................................................21
2.3.3 温度检测 ..........................................................................................21
2.4 调试结果及分析 ...................................................................22
结束语 .......................................................24
参考文献 .....................................................25
致谢 .........................................................26
附录 A ........................................................27
