目录
目录 ..................................................................................................................................................3
引言 ..................................................................................................................................................4
第一章 方案对比与选择 ..............................................................................................................5
方案 1 .......................................................................................................................................5
方案 2 .......................................................................................................................................5
方案选择 ..................................................................................................................................5
第二章 16F877A 单片机概述 .......................................................................................................6
2.1 单片机的用途与发展 ......................................................................................................6
2.2 PIC16F877A 单片机的结构与特点..................................................................................6
2.2.1 PIC16F877A 单片机引脚结构..............................................................................6
2.2.2 PIC16F877A 的内部结构......................................................................................7
2.2.3 单片机的特点 .......................................................................................................7
本章小结 ..................................................................................................................................8
第三章 LCD 1602A 字符液晶显示说明........................................................................................9
3.1 LCD 1602A 字符液晶显示的优势....................................................................................9
3.2 LCD 1602A 字符液晶引脚说明........................................................................................9
本章小结 ..................................................................................................................................9
第四章 整体设计方案 ................................................................................................................10
4.1 硬件选择 ........................................................................................................................10
4.3 PIC16F877A 单片机电路................................................................................................10
4.4 LCD 1602A 字符液晶显电路........................................................................................11
4.5 电源电路 ........................................................................................................................11
4.6 轻触按键电路 ................................................................................................................11
4.7 整体电路图 ....................................................................................................................12
4.8 程序主流程图 ................................................................................................................12
4.9 LCD 1602A 字符液晶程序流程图..................................................................................13
本章小结 ................................................................................................................................13
第五章 在线调式 ..........................................................................................................................14
5.1 MPLAB ICD 2 在线调试器...........................................................................................14
5.2 使用 ICD 2 进行调试 ...................................................................................................14
5.4 ICD2 在线调式结果 .......................................................................................................15
本章小结 ................................................................................................................................15
第六章 结束语 ..............................................................................................................................16
参考文献 ........................................................................................................................................17
致谢 ................................................................................................................................................17
附录 字符液晶数字时钟程序 ......................................................................................................18
