脈冲宽度的测量.docVIP

课 题： 脉冲宽度的测量 学 院： 电 气 信 息 工 程 学 院 专 业： 电子信息工程 班 级： 08电子1班 姓 名： 学 号： 合 作 者： 指导教师： 陈连玉 黄阳 日 期： 2011-10-10 目录 摘要·························································3 一、课程设计的目的与意义··································3 二、程序设计的具体要求·····································3 2.1 技术指标················································3 2.2 工作原理················································3 2.3 主要功能················································3 三、硬件电路的设计及描述 ·································4 3.1 总体框图················································4 3.2 各器件的参数············································4 3.3电路中的各器件··········································4 四、软件设计流程及描述·····································6 4.1 软件框图················································6 4.2 软件设计思想············································6 4.3 各参数的选择理论根据及公式······························7 五、源程序代码··············································9 六、调试与分析···············································13 6.1 调试·····················································13 6.2 误差与分析···············································13 七、课程设计的体会···········································13 八、参考文献 ············································13 九、附录一 ············································14 摘要：近年来随着科技的飞速发展，单片机的应用正在不断的走向深入，同时带动传统控制检测的更新。在实时检测和自动控制的单片机应用系统中，单片机大都是作为一个核心器件来使用，仅单片机方面的知识是不够的，还应该根据具体硬件结构，以及对具体应用对象特点的软件结合，加以完善。 本系统采用单片机AT89C51为中心器件来设计，在现有的单片机仿真机系统上掌握软硬件设计与调试知识，正确进行元器件的测试与调试，并在计算机上编写程序，进行调试运行，实现设计要求。 一、课程设计的目的和意义 （1） 设计目的通过本次课程设计，巩固和加深“单片机原理与应用”中的理论知识，了解和应用仿真系统，结合软硬件，基本掌握单片机的应用的一般设计方法，提高电子电路的设计和实验能力，并且提高自身查找和运用资料能力 意义通过本次课程设计，理论知识系统化，从中或得一些实战工作经验，提高个人与团体的。—10000HZ 3、测量精度：正负1% 4、显示方式：四位数字显示