串行通信MCS-51单片机内部有一个全双工的串行通信口，即串行接收和发送缓冲器（SBUF），这两个在物理上独立的接收发送器，既可以接收数据也可以发送数据。但接收缓冲器只能读出不能写入，而发送缓冲器则只能写入不能读出，它们的地址为99H。这个通信口既可以用于网络通信，亦可实现串行异步通信，还可以构成同步移位寄存器使用。-MCS-51 microcontroller serial communication within the a full-duplex serial communication port, that is, the serial receive and send buffer (SBUF), these two physically separate receiver transmitter, both can receive data can be sent data. Only read by the receiving buffer can not write, but can only write to send the buffer is not allowed to deliver, their address is 99H. The communication port can be used for both network communications, can also achieve the serial asynchronous communication, but also constitute a synchronous shift register to use.

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

微机原理及接口技术课程设计交通灯程序，多段代码整理-theory and computer interface technology curriculum design traffic lights procedures and code of finishing

电源产品GUIDE 想设计电源的朋友可以参考的手册-Power products GUIDE friends would like to design power can refer to the manual

3D应用解决方案，包括人体头部参数化建模，空间点集可视化，各类模拟等。-3D application solutions, including the human head parametric modeling, spatial point set visualization, such as various types of simulation.

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.

目前市面上最流行的DVD方案 程序设计指南 SUNPLUS 8202D ，以上为入门介绍， 平台概述，和系统指南。对想了解DVD软件构架的朋友有帮助。-The market at present the most popular program DVD Programming Guide SUNPLUS 8202D, more than entry-introduction, platform overview, and system guidelines. Would like to know on the DVD software architecture has to help a friend.

AVS整数DCT变换和量化方法的设计和实现-AVS integer DCT transform and quantization methods of design and realize

USB人机接口标准规范使用说明，PDF的格式-USB human interface standards for use, PDF format

一篇关于海杂波情况下雷达数据处理方面的经典论文-A case of sea clutter on radar data processing aspects of the classic papers