目录摘要 ...................................................................................................................................................... 1 第一章 51 单片机概述 ........................................................................................................................ 11.1 51 单片机系统地结构组成.................................................................................................. 11.2 51 单片机系统地功能特性................................................................................................. 21.2.1 51 单片机系统地结构............................................................................................ 21.2.2 功能特性： .............................................................................................................. 21.3 8255 芯片原理及其功能....................................................................................................... 31.4 液晶显示模块原理................................................................................................................ 4第二章 GPS 定位系统简介 ................................................................................................................. 52.2 GPS定位系统地基本原理 .................................................................................................. 52.3 GPS模块定位流程 .............................................................................................................. 62.4 NMEA-0183 数据格式 ......................................................................................................... 6第三章硬件连接电路 ......................................................................................................................... 73.1 单片机 .................................................................................................................................... 73.2 GPS 模块 .........................................................
