电子时钟的设计

论文编号:JD895  附开题报告,任务书,文献综述,论文字数:17100,页数:41

摘    要
加入世贸组织以后，中国会面临激烈的竞争。这种竞争将是一场科技实力、管理水平和人才素质的较量，风险和机遇共存。时间是最公正的裁判，不管你是富有的还是贫穷的，都会公平的分配给你大好的时光，一年三百六十五天，一天二十四小时，八万六千四百秒，不多不少，就看你如何合理安排了，也许有人会在一天里创造出一项伟大的发明或是研究探讨出一种新的元素，也许有人会在一天里碌碌无为、虚度时光。那怎样才能做到珍惜时间呢？那就要勤勉了，不让一天闲过，每时每刻做些有用的事，戒掉一些不必要的行动，这样你才会成为时间的主人，时间也才会对你微笑。于是老师在单片机理论课程学习的基础上，为我们安排了一个涉及51单片机多种资源应用及具有综合功能的电子时钟设计。希望大家能节约时间，合理的安排时间充分的发挥它的作用。在这次的设计过程中达到了因由的效果，也充分的发挥了知识的作用。

关键词：时间；单片机；端口；数码管

Abstract
After joining the WTO, China will face fierce competition. This competition will be a scientific and technological strength, management quality and talent level of the contest, risks and opportunities coexist. Time is the most impartial referee, whether you are rich or poor, and they will give you a fair distribution of good time, 365 days a year, 24 hours a day, 86400 seconds, not many, many, on how you look reasonable arrangement, and maybe one day someone will be created at a great invention or study a new element, maybe someone will be at day some people may be in the dayYong-Ping mediocre, nothing is as, wasted time. How can we do cherish that time? It should be diligent, and not too busy one day, every moment to do useful things, kick some unnecessary operations, so that you can become the master of time, time will also smile for you. So Teacher CHENHONG courses in SCM theory study on the basis of the arrangements for us to involve a wide range of 51 single-chip applications, and resources with comprehensive function of electron clock design. Hope that we can save time, reasonable arrangements for time to fully play its role. At this time the design process to achieve the effect of the cause, but also sufficient knowledge played a role.

Key Words：time; Single-chip Microcomputer; port; digital tube

目    录

摘    要 I
Abstract II
引    言 1
1系统结构 2
1.1  中央处理单元 2
1.2  供电电路部分 2
1.3  显示部分 2
2电路制作 3
2.1  电路设计流程图 3
2.2  根据电路图帮元器件布置在电路板上 13
2.3  简单介绍一下实物制作过程中遇到的问题以及解决方法 14
2.3.1  检测小功率晶体二极管 14
2.3.2  电阻器检测方法与经验 15
2.3.3  电容器检测方法与经验 17
3其他器件 19
3.1  数码管 19
3.1.1  数码管简介 19
3.1.2  共阴极数码管结构 19
4使用方法 20
5烧写 20
5.1  支持的器件 21
5.2  调试 22
5.3  软件仿真 23
5.4  程序烧写方法 25
5.5  软件一秒定初值 26
5.6  程序源代码 27
结    论 34
参 考 文 献 35
致    谢 36