众文网1.急求一篇3000到5000字的关于嵌入式系统的英文文献
嵌入式系统一般指非 PC 系统，有计算机功能但又不称之为计算机的设备或器材。
它是以应用为中心，软硬件可裁减的，适应应用系统对功能、可靠性、成本、体积、功耗等综合性严格要求的专用计算机系统。简单地说，嵌入式系统集系统的应用软件与硬件于一体，类似于 PC 中 BIOS 的工作方式，具有软件代码小、高度自动化、响应速度快等特点，特别适合于要求实时和多任务的体系。
嵌入式系统主要由嵌入式处理器、相关支撑硬件、嵌入式操作系统及应用软件系统等组成，它是可独立工作的“器件”。 嵌入式系统几乎包括了生活中的所有电器设备，如掌上 PDA 、移动计算设备、电视机顶盒、手机上网、数字电视、多媒体、汽车、微波炉、数字相机、家庭自动化系统、电梯、空调、安全系统、自动售货机、蜂窝式电话、消费电子设备、工业自动化仪表与医疗仪器等。
嵌入式系统的硬件部分，包括处理器 / 微处理器、存储器及外设器件和 I/O 端口、图形控制器等。嵌入式系统有别于一般的计算机处理系统，它不具备像硬盘那样大容量的存储介质，而大多使用 EPROM 、EEPROM 或闪存 （Flash Memory） 作为存储介质。
软件部分包括操作系统软件 （ 要求实时和多任务操作 ） 和应用程序编程。应用程序控制着系统的运作和行为；而操作系统控制着应用程序编程与硬件的交互作用。
Embedded systems generally refers to non-PC system, a computer function but do not call it the equipment or computer equipment. It is based on application-centric, software and hardware that can be trimmed and adapted to the application of system functionality, reliability, cost, size, power consumption, such as demanding a comprehensive dedicated computer system.To put it simply, sets of embedded systems applications software and hardware in one, similar to PC in the BIOS of the work, with software code in small, highly automated, and fast response characteristics, is particularly suited to the requirements of real-time and multi-tasking system . Embedded systems by embedded processor and related support hardware, embedded operating system and application software systems, and it can work independently of the "device." Embedded systems, including the lives of almost all electrical equipment, such as handheld PDA, mobile computing devices, television set-top boxes, mobile Internet, digital television, multimedia, cars, microwave ovens, digital cameras, home automation systems, elevators, air conditioning, security systems, vending machines, cellular phones, consumer electronics devices, industrial automation, instrumentation and medical equipment and so on.Embedded system hardware, including processor / microprocessor, memory and peripheral devices and I / O ports, such as graphics controller. Embedded systems is different from the general computer processing system, which does not have as large-capacity hard drives as the storage medium, and most of the use of EPROM, EEPROM or flash memory (Flash Memory) as storage medium.Software includes operating system software (required to operate real-time and multi-tasking) and application programming. Application control the operation of the system and behavior; and operating system controls the application programming and hardware interaction. 粤嵌教育 puter. Although it's often act as the core component of single chip system, it is not enough only with the knowledge of single chip. Engineers also need to think about the structure of the hardware to perfect the system.
Currently most higher education institutions have built single chip laboratory, equipped with experiment box and other hardware simulation equipment. But the circuitry of the experiment box is fixed and the experiment steps are hard to be changed. It is not fit the trend of rapid development speed of single chip technology. It is also unsuited to develop students' abilities and creativities. With the introduction of the Proteus software simulation technology, it can be solved at a certain extent. We could design more experiment steps and help students completing their self-study with the simulation experimental platform. It is a positive technology for system construction.
Based on the information above, the author design a temperature alarm system with functions of automatic temperature monitoring and artificially infrared temperature adjustment. This system is created based on the single-chip microcomputer simulation environment, using the PIC single chip of MICOCHIP ltd as the main control chip, combined with peripheral infrared sensor, LCD display, temperature sensing, dc motors, heating electric stove wire and alarm equipment. The control system of main chip and main program was written in C program.
This design has the advantages of reducing cost and increase practicability. It is could be adopted by most higher education institutions.
3.跪求英文文献与翻译（PIC单片机方面）
/downloads/en/DeviceDoc/31005a.pdf
/downloads/en/DeviceDoc/31005A_cn.pdf
这两个链接都是MICROCHIP网站上找到的关于PIC单片机的CPU和ALU结构介绍的数据手册，前者是英文版，后者中文版。两者是对应的。
PDF格式，word文档没有，不要太懒了，把这敲到word里就不用那么烦人地去翻译了。想当年我毕业的时候的英文翻译是对着纯英文版的数据手册自己翻译的，你现在有中文译本对照抄，已经很不错了。
如果感觉字数不够的话，去这里找“Reference Manual”下面的链接憨础封飞莩读凤嫂脯讥，基本上每种文档都有中文和英文两种版本的，标识有chinese的就是中文版。//magsdirx/ax/addenda/media/koya2811.pdfThis article investigates the characteristics of the Radio Shack Sound Level Meter in regard to its accuracy.The Radio Shack Sound Level Meter is a versatile and economical device, used for calibrating home theater speaker levels, subwoofer level matching to main speakers, low-frequency room-mode analysis, and measuring loudspeakers. Conveniently, an output jack is provided on these sound level meters, which allows connections to personal computer sound cards, and permits usage of these devices via PC-based acoustic measurement programs. But how accurate is this device and is it the appropriate tool to be used in the aforementioned activities?The Radio Shack Analog-Display Sound Level Meter (referred to hereafter as the RS SPL meter) has seen a model change. The new version (Photo 1, model number: 33-4050) is more compact than its predecessor. I assume that many users still own the older, now-discontinued version (Photo 2, model number: 33-2050), so I include it here. The Radio Shack Digital-Display Sound Level Meter (Photo 3, model number: 33-2055) features a digital readout of the sound level instead of a moving needle.I had access to two of the older-model RS SPL meters, one new model, and a digital version. I used these four units for this study.FREQUENCY RESPONSEDETERMINATION METHODI devised a method to determine the frequency response of the four RS SPL meters. First, I took a reference measurement using a calibrated Mitey Mike II microphone and a custom-made microphone preamplifier. From its specification sheet, the Mitey Mike II has a flat response in the low-frequency range, to 20Hz. The custom-made microphone preamplifier was designed to have a flat frequency response down to DC. I used LMS, which uses stepped sine signal acquisition1, to perform all acoustic measurements.One speaker I used in making this reference measurement was a 6½˝ two-way bookshelf speaker with a relatively flat frequency response (88Hz ~ 20kHz， ±2dB). Because the bookshelf speaker's frequency response extends down to only 88Hz (-3dB), I used a subwoofer with an approximately flat frequency response down to 16Hz (16Hz ~ 200Hz， ±2dB) to ascertain the low frequency region. I measured the bookshelf speaker using the ground-plane method2 and the pseudo-anechoic (gated3) method.I performed both measurement methods for the bookshelf speaker because when the RS SPL meter is placed flat on the ground, its microphone element edge is about 1cm off the ground. I surmised that this height differential in the ground-plane measurement may limit high-frequency accuracy4. Therefore, for high frequencies (above 500Hz), I used pseudo-anechoic measurements, which place the RS SPL meter microphoneTube, Solid State,Loudspeaker TechnologyPHOTO 1: RS Sound level meter (new model).。
6.求有关单片机英文文献及翻译,毕业设计用的
1. About SCM It can be said across the twentieth century, the three "electric" era, that is, electrical era, the electronic age, and has now entered the computer age. However, such a computer, usually refers to the personal computer, referred to as PC. It consists of the host, keyboard, monitor etc.. Another type of computer, most people do not know how. This computer is to smart to give a variety of mechanical microcontroller (also known as micro-controller). As the name suggests, this computer system only used the smallest one IC, you can perform simple operations and control. Because of its small size, usually hidden in a charged mechanical "stomach" Lane. It is the entire device, like the human brain plays a role, it goes wrong, the whole device was paralyzed. Now, this MCU has a very wide field of use, such as smart meters, real-time industrial control, communications equipment, navigation systems, home appliances and so on. Once the microcontroller were using a variety of products, you can serve to upgrade the effectiveness of the product, often in the product name is preceded by the adjective - "smart", such as washing machines and so intelligent. At present, some technical personnel of factories or other amateur electronics developers to engage in out of certain products, not the circuit is too complex, that is, functions are too simple and easy to be copied. The reason may be stuck in the product without the use of a microcontroller or other programmable logic device. SCM basic component is a central processing unit (CPU in the computing device and controller), read-only memory (usually expressed as a ROM), read-write memory (also known as Random Access Memory MRAM is usually expressed as a RAM) , input / output port (also divided into parallel port and serial port, expressed as I / O port), and so composed. In fact there is also a clock circuit microcontroller, so that during operation and control of the microcontroller, can rhythmic manner. In addition, there are so-called "break system", the system is a "janitor" role, when the microcontroller control object parameters that need to be intervention to reach a particular state, can after this "janitor" communicated to the CPU, so that CPU priorities of the external events to take appropriate counter-measures. 单片机的简介 可以说，二十世纪跨越了三个“电”的时代，即电气时代、电子时代和现已进入的电脑时代。
不过，这种电脑，通常是指个人计算机，简称PC机。它由主机、键盘、显示器等组成。
还有一类计算机，大多数人却不怎么熟悉。这种计算机就是把智能赋予各种机械的单片机（亦称微控制器）。
顾名思义，这种计算机的最小系统只用了一片集成电路，即可进行简单运算和控制。因为它体积小，通常都藏在被控机械的“肚子”里。
它在整个装置中，起着有如人类头脑的作用，它出了毛病，整个装置就瘫痪了。现在，这种单片机的使用领域已十分广泛，如智能仪表、实时工控、通讯设备、导航系统、家用电器等。
各种产品一旦用上了单片机，就能起到使产品升级换代的功效，常在产品名称前冠以形容词——“智能型”，如智能型洗衣机等。现在有些工厂的技术人员或其它业余电子开发者搞出来的某些产品，不是电路太复杂，就是功能太简单且极易被仿制。
究其原因，可能就卡在产品未使用单片机或其它可编程逻辑器件上。单片机的基本组成是由中央处理器（即CPU中的运算器和控制器）、只读存贮器（通常表示为ROM）、读写存贮器（又称随机存贮器通常表示为RAM）、输入/输出口（又分为并行口和串行口，表示为I/O口）等等组成。
实际上单片机里面还有一个时钟电路，使单片机在进行运算和控制时，都能有节奏地进行。另外，还有所谓的“中断系统”，这个系统有“传达室”的作用，当单片机控制对象的参数到达某个需要加以干预的状态时，就可经此“传达室”通报给CPU，使CPU根据外部事态的轻重缓急来采取适当的应付措施。
7.关于单片机方面的英文文献,最还有翻译
本毕业设计课题是属于教师拟定性课题，主要是研究基于单片机的对步进电机的有效控制。
步进电机是一种能将数字输入脉冲转换成旋转或直线增量运动的电磁执行元件，每输入一个脉冲电机转轴步进一个步距角增量。电机总的回转角与输入脉冲数成正比例，相应的转速取决于输入脉冲频率。
步进电机是机电一体化产品中关键部件之一，通常被用作定位控制和定速控制。步进电机惯量低、定位精度高、无累积误差、控制简单等特点。
广泛应用于机电一体化产品中，如：数控机床、包装机械、计算机外围设备、复印机、传真机等。 AbstractThis article mainly elaborated has been hanging the movement control system merit, introduced was hanging the movement control system function, the principle and the design process. Is hanging the movement control system is one of in control engineering domain important applications, its main target is to is controlled the object the movement condition, including path, speed and position implementation check. The movement control system compares with other control systems, has the system model simply, the check algorithm is unitary, also not complex characteristic and so on non-linearity and coupling situation. Also is precisely because the movement control system can implement to the path, the running rate, the pointing accuracy as well as the repetition precision accuracy control requirement, has the broad application foreground in each category of control engineering, therefore the movement control system has at present become in the check study application domain very much significant the research direction. Through the monolithic integrated circuit to stepping monitor check, implemented the motor-driven to cause the object at on the board which inclined the movement, The control section is the SST89E52 monolithic microcomputer which SST Corporation produces primarily, with when the 1602LCD liquid crystal screen and according to turned has implemented with the user interactive, through the keyboard entry different control command, the liquid-crystal display was allowed to display the setting value and the run the coordinates. The electrical machinery control section used LM324N four to transport puts and is connected the electronic primary device voluntarily to develop the 42BYG205 stepping monitor actuation electric circuit to implement the electrical machinery accuracy control. The algorithm partially for will suit the monolithic integrated circuit system to operate carries on optimizes many times, will reduce the microprocessor the operand. Has completed the object voluntarily the movement and according to the different setup path movement. Key words Magneto; 1602LCD; LM324N; Drive circuit。
8.求单片机参考文献,中文的有相应的外文翻译
[1]杨十元.模拟系统故障诊断与可靠性设计，清华人学出版社，2004
[2]童诗白.模拟电子技术基础，高教出版社，2006
[3]周航慈.单片机应用程序设计技术，北京航空航大大学出版社，2005
[4]李刚.ADuC812系列单片机原理和应用技术，北京航空航天山版社，2005
[5]胡诞康.在线测试技术的发展与展望，计量与测试技术，2001
[6]星河科技开发公司，印刷电路板在线测试系统的发展与应用，电子标准化与测量，2003
[7]季华.PCB测试技术的综合利用，电子产品世界，2007-12
[8]鲜坛.组装测试技术应用前景分析，世界电子元器件，2008-1
[9]张金敏.基于单片机控制的智能电阻电容在线测试仪，甘肃科技，2006
[10]庄绍雄王济浩张迎春.智能阻容在线测试技术，山东工业大学学报，
[11]陈国顺陈春沙王格芳等.通用电路板在线测试仪设计与开发，仪器仪表学报，2001
[12]Nancy Hplland.Automated Instruments Smooth Rapid Test System Development.Test & Measurement World,AUGUST 2001
[13]卢育强.如何设定ICT的上下限，电子生产设备，2003 142-143
[14]赵悦 沈青松 终玉军.路板的测试技术，辽宁工学院学报，2008-1
[15]程亚黎 曾周末.电路故障自动测试与诊断系统，中国仪器仪表，2007