目 录
引言 ...........................................................................................................................................1
1 课题背景.........................................................................................................1
2 系统方案与功能指标.....................................................................................1
2.1 系统方案..............................................................................................................................1
2.2 功能指标..............................................................................................................................2
3 系统器件选型.................................................................................................2
3.1 主控芯片..............................................................................................................................2
3.2 显示模块..............................................................................................................................3
3.3 红外收发模块......................................................................................................................4
4 系统硬件电路设计.........................................................................................6
4.1 主控系统电路......................................................................................................................6
4.2 红外解码电路......................................................................................................................7
4.3 矩阵键盘电路......................................................................................................................8
4.4 LCD1602 显示电路..............................................................................................................8
4.5 DC-5V 电源电路..................................................................................................................9
5 系统软件设计...............................................................................................10
5.1 主程序设计........................................................................................................................10
5.2 矩阵键盘扫描程序设计....................................................................................................10
5.3 LCD1602 液晶显示程序设计............................................................................................11
5.4 红外模块控制程序设计....................................................................................................12
6 系统测试.......................................................................................................12
6.1 系统测试与测试结果分析................................................................................................12
6.1.1LCD1602 液晶显示测试..................................................................................................12
6.1.2 红外模块学习和发送控制测试......................................................................................13
6.2 测试分析............................................................................................................................14