目录
摘要 .......................................................................................................................................................I
Abstract................................................................................................................................................II
1.设计任务 ..........................................................................................................................................1
2.设计方案 ..........................................................................................................................................3
2.1 基本原理 ...................................................................................................................................3
2.2 电路模块设计 ...........................................................................................................................5
2.2.1 复位电路 .......................................................................................................................5
2.2.2 震荡电路 .......................................................................................................................5
2.2.3 单片机最小系统 ...........................................................................................................6
2.2.4 显示电路........................................................................................................................7
2.2.5 矩阵键盘电路................................................................................................................7
2.2.6 串口通信电路 ...............................................................................................................8
2.2.7 总电路原理图 ...............................................................................................................8
3.软件设计 ..........................................................................................................................................9
3.1 设计软件介绍............................................................................................................................9
3.1.1 设计软件 protus ..........................................................................................................9
3.1.2 编程软件 Keil.................................................................................................................9
3.2 模块功能的实现......................................................................................................................10
3.2.1 数据输入设计..............................................................................................................10
3.2.2 数据输出设计 .............................................................................................................11
3.2.3 串口通信设计 .............................................................................................................12
4.仿真 ................................................................................................................................................13
4.1 数据输入功能仿真..................................................................................................................13
4.2 数据输出功能仿真 .................................................................................................................14
4.3 串口通信功能仿真..................................................................................................................15
5.实物图 ............................................................................................................................................16
6.总结 ................................................................................................................................................17
