目 录
摘 要...........................................................................................................I
1 绪论 ........................................................................................................1
1.1 设计目的与意义 ..................................................................................1
1.2 方案选择与 DIY 电子万年历的研究情况........................................1
1.2.1 时钟芯片选择 ...................................................................................1
1.2.2 键盘选择 ...........................................................................................3
1.2.3 显示模块选择 ...................................................................................4
1.2.4 DIY 万年历的研究情况...................................................................4
2 主要硬件描述 ........................................................................................5
2.1 89C52 模块 ..........................................................................................5
2.2 显示模块 LCM12864 .........................................................................5
2.2.1 液晶模块概述 ...................................................................................5
2.2.2 液晶模块特点 ...................................................................................5
2.3 芯片 DS1302 简介..............................................................................6
2.4 芯片 DS18B20 简介 ...........................................................................6
3 硬件设计与实现 ....................................................................................8
3.1 单片机最小系统的设计 .....................................................................8
3.2 时钟电路的设计 .................................................................................9
3.3 温度采集模块的设计 .........................................................................9
3.4 人机交互模块设计 ...........................................................................10
4 系统软件设计与实现 ..........................................................................11
