基于EDA技术的数字电子时钟设计

本科毕业论文

院 系： 信息工程学院 专 业： 班 级： 作 者： 指导教师： 完成时间： 2014年5月

EDA技术实现的数字电子钟设计

摘要 电子设计自动化 Electronic Design Automation （以下简称EDA）技术已经代替传

统的集成电路设计方法，逐渐成为电子系统设计者的主要设计手段。MAXplusⅡ是EDA仿真软件之一。具有功能强大、界面友好和使用方便等特点，是目前教育与工业界流行的集成电路辅助设计软件。MAXplusⅡ是一种在电子技术工程与电子技术教学中广泛应用的优秀计算机仿真软件，被誉为“计算机里的电子实验室”。本文介绍了一种基于MAXplusⅡ软件设计数字电子钟的方法。

关键词 EDA MAXplusⅡ软件 数字电子钟

目 录

引言·································································································1 第一章 EDA概论·············································································2 1.1 EDA技术概述············································································2 1.2 EDA在数字电路课程设计中的必要性············································2 1.3 MAXplusⅡ概述···················································································3 1.4 设计电子钟的可行性分析····························································3 第二章 设计依据·············································································4 2.1设计总体方案·············································································4 2.2设计原理···················································································4 2.3 设计目标和方法·········································································4 第三章 EDA电子钟系统设计···························································5 3.1电子钟的功能分析、总体规划·······················································5 3.1.1电子钟功能分析······························································5 3.1.2总体规划·········································································5 3.2使用MAXplusⅡ作为数字电子钟设计平台·················································5 3.2.1 MAXplusⅡ软件仿真特点···························································5 3.2.2 MAXplusⅡ介绍··········································································6 3.3 单元电路设计与分析····································································6 3.3.1石英晶体振荡器·······························································6 3.3.2分频电路··········································································7 3.3.3秒、分计数电路·······························································8 3.3.4时计数电路······································································9 3.3.5校时电路·········································································10 3.3.6整点报时电路··································································10 3.3.7定时闹钟·········································································12 第四章MAXplusⅡ电子钟仿真结果····························································15 4.1 MAXplusⅡ电子钟基本功能仿真结果·······················································15 4.2 MAXplusⅡ电子钟扩展功能仿真结果························································15 4.3 MAXplusⅡ电子钟整体仿真结果······························································15 结束语·······························································································17 参考文献···························································································18

引 言

随着计算机在国内的逐渐普及，计算机已经深入到每一个行业，计算机与每个工作领域紧密地联系在了一起。使用计算机可以大大提高工作效率。电子技术作为信息化社会的重要技术基石，已经成为20世纪下半叶乃至21世纪发展最迅速、最活跃、最具有渗透力的技术。实现信息化的网络及其关键部件不管是各种计算机还是通讯电子设备，它们的基础都是集成电路。集成电路技术发展至今，全世界数以万亿美元计的设备和科技投入，已使电子技术形成非常强大的产业能力。电子技术水平发展如此迅速，在于它具有极大的市场应用需求。科学技术发展到今天，衡量许多电子产品技术含量高低在很大程度上取决于电子技术的引入水平。然而，孤立地发展电子技术是没有出路的，它必须同各种生产实践相结合，以社会需求为动力。

随着计算机新技术的发展以及电子系统设计新需求的上升，技术竞争需要的是对新器件应用的需求，集成电路专业设计人员需要的是贯穿电子设计过程始终的最小人工花销、最强的自动化设计手段。正是在这种强烈的技术要求推动下，产生了电子设计自动化

EDA(Electronic Design Automation) 技术，EDA是新崛起的现代化电子设计手段。

EDA技术的关键之一是EDA工具，EDA工具是指以计算机为工作平台，融合了应用电子技术、计算机技术、智能化技术最新成果而研制成的电子设计通用工具软件，本文就是介绍一种EDA工具——EWB软件设计数字电子钟。

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