题 目：_______ 基于单片机的数字温度计设计 _ __________学院名称：__________ _______________专业名称：______ ______________年 级：___________________________学生姓名：___________________________目录摘要................................................................1Abstract...........................................................2第 1 章 绪论................................................................................................................31.1 课题背景及讨论意义..........................................................................................31.2 课题的设计目的..................................................................................................31.3 课题的主要工作..................................................................................................31.4 本文讨论内容......................................................................................................3第 2 章系统概述......................................................................................................52.1 方案选择..............................................................................................................52.1.1 方案一..........................................................................................................52.1.2 方案二..........................................................................................................62.2 系统设计原理......................................................................................................62.3 系统组成..............................................................................................................6第 3 章 系统硬件设计..................................................................................................83.1 89S51 单片机......................................................................................................83.1.1 89S51 单片机管脚图.................................................................
