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必威体育精装版基于单片机的数字时钟设计
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课程设计说明书
题目: 基于单片机的数字时钟设计
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指导教师：
年 月 日
目录
摘要································································I
绪论································································1
1 概述······························································2
1.1 设计背景······················································2
1.2 数字时钟设计方案··············································2
1.3 数字时钟功能··················································2
1.4 主要设计软件介绍··············································2
1.4.1 KEIL 软件简介··············································2
1.4.2 Proteus 软件简介···········································3
2 硬件电路主要元器件及电路原理图····································4
2.1 DS12887 时钟芯片···············································4
2.1.1 主要功能··················································4
2.1.2 管脚功能··················································4
2.2 AT89C52 芯片···················································5
2.2.1 AT89C52 的主要特性·········································5
2.2.2 管脚说明··················································5
2.2.3 振荡器特性················································7
2.3 LM016L 显示模块················································7
2.3.1 组成及功能简介············································7
2.3.2 各组成部分功能············································7
3 软件设计··························································8
3.1 程序流程图····················································8
3.2 程序设计······················································9
3.2.1 主函数部分················································9
3.2.2 时钟芯片部分··············································9
3.2.3 显示器部分················································9
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