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目 录
1 引言 .................................................................................................................................1
1.1 课题背景 ................................................................................................................1
1.2 系统功能概述 ........................................................................................................1
1.2.1 总体设计框架 ..............................................................................................1
1.2.2 上位机(PC)...................................................................................................2
1.2.3 串行通信接收器 ..........................................................................................2
1.2.4 单片机 ..........................................................................................................3
1.2.5 外扩存储器 ..................................................................................................3
1.2.6 LED 显示屏行列驱动电路 .........................................................................3
1.2.7 LED 点阵显示屏 .........................................................................................3
2 Proteus 模拟仿真 .............................................................................................................4
2.1 Proteus 介绍 ...........................................................................................................4
2.2 Keil u Vision3 介绍................................................................................................5
2.3 Keil u Vision3 与 Proteus 的连接..........................................................................6
2.4 硬件仿真电路 ........................................................................................................6
2.4.1 下位机汉字显示的仿真 ..............................................................................6
2.4.2 EEPROM 外扩存储器读写的仿真.............................................................7
2.4.3 下位机接收上位机传输数据的仿真 ..........................................................8
2.5 调试过程 ................................................................................................................9
3 硬件部分 .......................................................................................................................13
3.1 单片机简介 ..........................................................................................................13
3.1.1 单片机的发展及应用 ................................................................................13
3.1.2 单片机的应用 ............................................................................................14
3.1.3 单片机的开发平台 ....................................................................................14
3.2 控制部分 ..............................................................................................................15
3.2.1 芯片简介 ....................................................................................................15
3.2.2 硬件电路 ....................................................................................................18
3.2.3 电路说明 ....................................................................................................19
3.2.4 调试过程 ....................................................................................................19
3.3 显示屏部分 ..........................................................................................................20
3.3.1 芯片简介 ....................................................................................................20
3.3.2 硬件电路 ....................................................................................................25