目录
1 设计目的及要求.....................................................................................................................1
1.1 设计目的和意义 ...............................................................................................................................1
1.2 设计任务与要求 ...............................................................................................................................1
2 硬件电路设计.........................................................................................................................2
2.1 总体方案设计 ...................................................................................................................................2
2.2 功能模块电路设计 ...........................................................................................................................3
2.2.1 单片机的选型 ........................................................................................................................3
2.2.2 振荡电路设计 ........................................................................................................................5
2.2.3 复位电路设计 ........................................................................................................................5
2.2.4 键盘接口电路设计 ................................................................................................................6
2.2.5 温度测量电路设计 ................................................................................................................6
2.2.6 系统显示电路设计 ................................................................................................................7
2.2.7 输出控制电路设计 ................................................................................................................8
2.3 总电路设计 .......................................................................................................................................8
2.4 系统所用元器件 ...............................................................................................................................9
3 软件系统设计.......................................................................................................................10
3.1 软件系统总体方案设计 .................................................................................................................10
3.2 软件流程图设计 .............................................................................................................................10
4 系统调试...............................................................................................................................12
5 总结.......................................................................................................................................13
5.1 本系统存在的问题及改进措施 .....................................................................................................13
参考文献...................................................................................................................................14
附录 1：系统的源程序清单....................................................................................................15
附录 2：系统的 PCB 图 ..........................................................................................................39
