基于AT89S51单片机的数字万年历设计.doc资源-CSDN文库

版权申诉

3 浏览量 2023-06-20 00:00:06 上传评论收藏 563KB DOC 举报

资源推荐

资源详情

资源评论

摘要：本设计以数字集成电路技术为基础，单片机技术为核心。软件设计采用模块化结

构，汇编语言编程。系统通过 LCD 显示数据，可以显示公历日期（年、月、日、时、

分、秒）以及星期。在内容安排上首先描述系统硬件工作原理，着重介绍了各硬件接口

技术和各个接口模块的功能；其次，详细的阐述了程序的各个模块和实现过程。

关键词：单片机;万年历;DS1302;LCM1602

Design of digital calendar based on MCU AT89S51

Bai Yang

School of physics and electronic information Grade 2005 Instructor: Tang Zheng-ming

Abstract: The design is based on digital integrate circuit, microcontroller technology is the

core of the system. The software design uses module structure and adapts microcontroller

assemble language. The system can display calendar date, including year, month, week, hour,

minute, second and week. The work principle of the system is discussed in this paper,

hardware interface and module function are reported primarily in the system. Every module of

program is described explicitly.

Keywords: MCU ; Calendar; DS1302; LCM1602

基于 AT89S51 单片机的数字万年历设计

摘要.................................................................................................................................................................1

1 设计要求 ......................................................................................................................................................2

2 方案论证与设计..........................................................................................................................................2

2.1 用可编程逻辑器件设计..................................................................................................................2

2.1.1 控制器部分 .................................................................................................................................3

2.2 显示部分的方案选择......................................................................................................................3

2.3 系统设计..........................................................................................................................................3

2.3.1 晶体振荡器电路………………………………………………………………………………..3

2.3.2 分频器电路 ………………………………………………………………………………..3

2.3.3 时间计数器电路 …………………………………………………………………………..3

2.3.4 时钟电路 ……………………………………………………………………………………..4

2.3.5 复位电路 ……………………………………………………………………………………. 4

2.3.6 复位电路的可靠性设计………………………………………………………………………...4

2.3.7 按键部分………………………………………………………………………………………..5

2.3.8 蜂鸣器电路……………………………………………………………………………………5

3.3.9 根据各模块的功能互相连接成电子万年历的控制电路……………………………………5

3 各硬件介绍 ...................................................................................................................................................6

3.1 AT89S51 的引脚说明.............................................................................................................................7

3.2 发光二极管指示电路设计……………………………………………………………………………8

3.3 蜂鸣器电路设计…………………………………………………………………………8

3.3.1 蜂鸣器的介绍………………………………………………………………………..9

3.3.2 蜂鸣器的结构原理…………………………………………………………………..9

3.4 LCM1602 简介…………………………………………………………………………9

3.5 DS1302 简介..................................................................................................................................10

4 系统硬件设计所需的器材……………………………………………………………….11

5 系统软件总体设计....................................................................................................................................11

6 系统功能介绍……………………………………………………………………………. 12

6.1 按键介绍 ........................................................................................................................................13

6.2 星期计算 ..........................................................................................................................................13

7 主程序流程图............................................................................................................................................14

8 安装制作 ……………………………………………………………………………….14

9 调试与检测安全 ……………………………………………………………………….14

10 结束语 .......................................................................................................................................................15

前言

电子万年历是实现对年，月，日，时，分，秒数字显示的计时装置，广泛用于个人

家庭，车站，码头，办公室，银行大厅等场所，成为人们日常生活中的必需品。数字集