The introduction of Spartan-3™ devices has createdmultiple changes in the evolution of embedded controldesigns and pushed processing capabilities to the “almostfreestage.” With these new FPGAs falling under $20, involume, with over 1 million system gates, and under $5for 100K gate-level units, any design with programmablelogic has a readily available 8- or 16-bit processor costingless than 75 cents and 32-bit processor for less than $1.50.
上傳時間： 2013-12-10
上傳用戶：zgu489
The SDI standards are the predominant standards for uncompressed digital videointerfaces in the broadcast studio and video production center. The first SDI standard,SD-SDI, allowed standard-definition digital video to be transported over the coaxial cableinfrastructure initially installed in studios to carry analog video. Next, HD-SDI wasto support high-definition video. Finally, dual link HD-SDI and 3G-SDIdoubled the bandwidth of HD-SDI to support 1080p (50 Hz and 60 Hz) and other videoformats requiring more bandwidth than HD-SDI provides.
上傳時間： 2013-10-08
上傳用戶：yjj631
Prakash Rashinkar has over 15 years experience in system design and verificationof embedded systems for communication satellites, launch vehicles and spacecraftground systems, high-performance computing, switching, multimedia, and wirelessapplications. Prakash graduated with an MSEE from Regional Engineering College,Warangal, in India. He lead the team that was responsible for delivering themethodologies for SOC verification at Cadence Design Systems. Prakash is anactive member of the VSIA Functional Verification DWG. He is currently Architectin the Vertical Markets and Design Environments Group at Cadence.
上傳時間： 2014-01-24
上傳用戶：xinhaoshan2016
業(yè)余電臺通信基本程序 電臺, 業(yè)余, 程序, 通信 一、 普遍呼叫程序： CQ 3遍 DE(THIS IS) 1遍 本臺呼號 3遍 K(STANDING BY) 1遍 二、 呼叫遠(yuǎn)距離電臺程序： CQDX 3遍 DE(THIS) 1遍 本臺呼號 3遍 K(STANDING BY) 1遍 三、 呼叫特定地區(qū)程序： CQ(特定地區(qū)名稱） 3遍 DE(THIS IS) 1遍 本臺呼號 3遍 K(STANDING BY) 1遍 四、 回答程序： 對方呼號 1～3遍 DE(THIS IS) 1遍 本臺呼號 1～3遍 K(over) 1遍 五、 未聽清對方呼號時詢問呼叫程序： QRZ? 1～2遍 DE(THIS IS) 1遍 本臺呼號 1～3遍 六、 雙方溝通后的聯(lián)絡(luò)程序： R(ROGER） 1～2遍 對方呼號 1～2遍 DE(THIS IS) 1遍 本臺呼號 1～2遍 *通信內(nèi)容* 對方呼號 1遍 DE(THIS IS) 1遍 本臺呼號 1遍 K(over) 1遍 通信內(nèi)容一般是： 首先互相報告對方的訊號情況，再報告自己的姓名、地址、設(shè)備、天氣情況以及其他要談的內(nèi)容，在確認(rèn)聯(lián)絡(luò)相互交換QSL卡片
上傳時間： 2014-01-02
上傳用戶：libinxny
移動設(shè)備管理(Mobile Device Management)正是應(yīng)對這種管理挑戰(zhàn)而產(chǎn)生的，確保所有連接到運(yùn)營商網(wǎng)絡(luò)的移動設(shè)備能夠提供高質(zhì)量的移動數(shù)據(jù)服務(wù)。移動設(shè)備管理提供了對2G、3G、WiMAX等移動設(shè)備的支持。OMA基于OTA(over-the-air)的設(shè)備管理框架為移動設(shè)備管理提供了一種解決方案，OMA DM協(xié)議明確獨(dú)立于承載網(wǎng)絡(luò)，因此該協(xié)議可以用于多種網(wǎng)絡(luò)，包括移動蜂窩網(wǎng)、藍(lán)牙、以太網(wǎng)、Wi-Fi、WiMAX等等，它橫跨2G、3G和WiMAX技術(shù)。
標(biāo)簽： OMA 移動 DM協(xié)議 設(shè)備管理
上傳時間： 2013-11-15
上傳用戶：yuchunhai1990
The field of microelectromechanical systems (MEMS), particularly micromachinedmechanical transducers, has been expanding over recent years, and the productioncosts of these devices continue to fall. Using materials, fabrication processes, anddesign tools originally developed for the microelectronic circuits industry, newtypes of microengineered device are evolving all the time—many offering numerousadvantages over their traditional counterparts. The electrical properties of siliconhave been well understood for many years, but it is the mechanical properties thathave been exploited in many examples of MEMS. This book may seem slightlyunusual in that it has four editors. However, since we all work together in this fieldwithin the School of Electronics and Computer Science at the University of Southampton,it seemed natural to work together on a project like this. MEMS are nowappearing as part of the syllabus for both undergraduate and postgraduate coursesat many universities, and we hope that this book will complement the teaching thatis taking place in this area.
上傳時間： 2013-10-16
上傳用戶：朗朗乾坤
This book evolved over the past ten years from a set of lecture notes developed while teaching the undergraduate Algorithms course at Berkeley and U.C. San Diego. Our way of teaching this course evolved tremendously over these years in a number of directions, partly to address our students' background (undeveloped formal skills outside of programming), and partly to reect the maturing of the eld in general, as we have come to see it. The notes increasingly crystallized into a narrative, and we progressively structured the course to emphasize the ?story line? implicit in the progression of the material. As a result, the topics were carefully selected and clustered. No attempt was made to be encyclopedic, and this freed us to include topics traditionally de-emphasized or omitted from most Algorithms books.
標(biāo)簽： Algorithms 算法
上傳時間： 2013-11-11
上傳用戶：JamesB
This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System
標(biāo)簽： FPGA 安全系統(tǒng)
上傳時間： 2013-11-14
上傳用戶：zoudejile
通過以太網(wǎng)遠(yuǎn)程配置Nios II 處理器 應(yīng)用筆記 Firmware in embedded hardware systems is frequently updated over the Ethernet. For embedded systems that comprise a discrete microprocessor and the devices it controls, the firmware is the software image run by the microprocessor. When the embedded system includes an FPGA, firmware updates include updates of the hardware image on the FPGA. If the FPGA includes a Nios® II soft processor, you can upgrade both the Nios II processor—as part of the FPGA image—and the software that the Nios II processor runs, in a single remote configuration session.
標(biāo)簽： Nios 遠(yuǎn)程 處理器 應(yīng)用筆記
上傳時間： 2013-11-22
上傳用戶：chaisz
Nios II 軟件開發(fā)人員手冊中的緩存和緊耦合存儲器部分 Nios® II embedded processor cores can contain instruction and data caches. This chapter discusses cache-related issues that you need to consider to guarantee that your program executes correctly on the Nios II processor. Fortunately, most software based on the Nios II hardware abstraction layer (HAL) works correctly without any special accommodations for caches. However, some software must manage the cache directly. For code that needs direct control over the cache, the Nios II architecture provides facilities to perform the following actions:
上傳時間： 2013-10-25
上傳用戶：蟲蟲蟲蟲蟲蟲
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