arm_tracerII_v2.0说明书

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

基于多媒体通信的点播系统的研究与开发 硕士学位论文-Demand-based multimedia communications systems research and development of a master

太原理工大学硕 士 学 位 论 文 摘 要 随着Internet/Intranet 建设的飞速发展,Web 服务作为当 前Internet 上最热门的一种服务,得到了广泛的应用。Web 技术 发展到今天,人们已经可以把数据库技术引入到Web 系统中。将 Web 与数据库结合起来,不仅把Web 与数据库的所有优点集中在 一起,而且充分利用了大量已有的数据库信息资源,可以使用户 在Web 浏览器上方便地检索和浏览数据库的内容,Web 数据库技 术为传统的信息系统应用模式转轨到新的应用模式提供了具体 解决方案,也为解决信息孤岛问题提供了思路。-Taiyuan University of Technology with a master"s degree thesis Abstract Internet/Intranet construction of the rapid development of Web services as the current most popular on the Internet as a service, a wide range of applications. Web technology into today, people can turn the technology into the database to the Web system. Web and Database will combine not only the Web and database together all the advantages, but also made full use of the existing large database of information resources, allowing customers to the Web browser to facilitate the retrieval and browsing the contents of the database, Web database technology to the traditional information system applications model transition to the new model of applica

人事管理系统是企业用来管理员工信息、工资、考勤和工作考核信息的一套信息化系统。本系统符合操作简便、界面友好、灵活、实用、安全的要求出发，完成人事管理的全过程，包括“系统”、“职能设置”、“基本信息”、“工资管理”、“工作评价管理” 以及“考勤管理”等功能模块-The human resource management system is used to manage employee information, salary , attendance and work assessment. This system includes several sections, such as, system, function setting, basic information, salary management, work assessment management, attendance management and so on. the system are easy operation, friendly interface, agile, economic and safe.

ICETEK-DM642-C评估板是一个低功耗独立的开发平台，使用户可以对TI的DM64x DSP系列进行评测和开发应用。ICETEK-DM642-C评估板还可以作为为TMS320DM642 DSP芯片设计的硬件参考板-ICETEK-DM642-C Evaluation Board is a low-power independent of the development platform, enables users to to TI

2006年哈尔滨工业大学嵌入式系统教学课件,希望感兴趣的看一看-2006 Harbin Industrial University Embedded System courseware, hoping to look at the interest

一个完整的MP3设计方案，包括原理图和PCB，对这方面有兴趣的可以-err

全国大学生电子设计竞赛获奖作品精选：1994-1990_11039843.rar-National Undergraduate Electronic Design Contest winning entries selected :1994-1990_11039843. Rar

运算放大器设计与应用―电子工程师必备手册-Operational Amplifiers Design and Application- Electronic Engineer required manual

一篇介绍自动调焦用于生物显微镜的英文章，包括其总体结构。-The bioengineering is a popular and fast-developing researching topic in recent years. Among them, the observation of microorganism is a very important experimental approach of bioengineering. As the biological sensing chip technology becomes mature, it is even beneficial to the research. Most of the biological sensing chips for measuring and observation adopt different type of precise microscopes and the corresponding software.