一個簡單的ＳＰＩ ＩＰ核，SPI Core Specifications 可以從說明文檔中找到！ The simple Serial Peripheral Interface core is an enhanced version of the Serial Peripheral Interface found on Motorola s M68HC11 family of CPUs. The Serial Peripheral Interface is a serial, synchronous communication protocol that requires a minimum of 3 wires. FEATURES: · Compatible with Motorola’s SPI specifications · Enhanced M68HC11 Serial Peripheral Interface · 4 entries deep read FIFO · 4 entries deep write FIFO · Interrupt generation after 1, 2, 3, or 4 transferred bytes · 8 bit WISHBONE RevB.3 Classic interface · Operates from a wide range of input clock frequencies · Static synchronous design · Fully synthesizable
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上傳時間： 2015-09-17
上傳用戶：TRIFCT
This article describes Atmel’s FingerChip technology for electronic fingerprint sensing that combines the advantages of small size, low cost, high accuracy, zero maintenance, low energy consumption and portability. This technology has applications in a wide range of fixed and portable secured devices including access control systems, cash terminals, public transport, PCs, PDAs, Smart Card readers and motor vehicles. It can be used in almost any situation where rapid, reliable and accurate identification or authentication of an individual is required.
標簽： fingerprint FingerChip technology electronic
上傳時間： 2013-12-27
上傳用戶：h886166
The Staged Event-Driven Architecture (SEDA) is a new design for building scalable Internet services. SEDA has three major goals: To support massive concurrency, on the order of tens of thousands of clients per node To exhibit robust performance under wide variations in load and, To simplify the design of complex Internet services. SEDA decomposes a complex, event-driven application into a set of stages connected by queues. This design avoids the high overhead associated with thread-based concurrency models, and decouples event and thread scheduling from application logic. SEDA enables services to be well-conditioned to load, preventing resources from being overcommitted when demand exceeds service capacity. Decomposing services into a set of stages also enables modularity and code reuse, as well as the development of debugging tools for complex event-driven applications.
標簽： Event-Driven Architecture Internet building
上傳時間： 2015-09-28
上傳用戶：日光微瀾
SCSI-2也稱為Fast－SCSI，傳輸速率為10MB／s。 后采用擴展總線寬度來增加數(shù)據(jù)流量的方式，提高整 體傳輸速率，于是SCSI－2規(guī)定了16位、32位數(shù)據(jù)總 線，使傳輸速率進一步提高為20MB／S，也就是wide －SCSI，或是稱作Fast SCSI－2。 wide－SCSI采用4 位定址，使可連接的設(shè)備達到了15個。在接口電纜上， 為兼容SCSI－l所使用的A電纜，SCSI－2標準在A 電纜的基礎(chǔ)上增加一條68pin的扁平電纜，稱為B電 纜。目前還有不少SCSI的CD－ROM、CD－R、CD－ RW還是使用SCSI－2界面。
上傳時間： 2014-12-03
上傳用戶：change0329
The goal of this library is to make ODBC recordsets look just like an STL container. As a user, you can move through our containers using standard STL iterators and if you insert(), erase() or replace() records in our containers changes can be automatically committed to the database for you. The library s compliance with the STL iterator and container standards means you can plug our abstractions into a wide variety of STL algorithms for data storage, searching and manipulation. In addition, the C++ reflection mechanism used by our library to bind to database tables allows us to add generic indexing and lookup properties to our containers with no special code required from the end-user. Because our code takes full advantage of the template mechanism, it adds minimal overhead compared with using raw ODBC calls to access a database.
標簽： recordsets container library ODBC
上傳時間： 2015-10-11
上傳用戶：xlcky
This paper introduces an affine invariant of trapezia, and the explicit constraint equation between the intrinsic matrix of a camera and the similarity invariants of a trapezium are established using the affine invariant. By this constraint, the inner parameters, motion parameters of the cameras and the similarity invariants of trapezia can be linearly determined using some prior knowledge on the cameras or the trapezia. The proposed algorithms have wide applicability since parallel lines are not rare in many scenes. Experimental results validate the proposed approaches. This work presents a unifying framework based on the parallelism constraint, and the previous methods based on the parallelograms or the parallelepipeds can be integrated into this framework. Key words: invariant parallelism constraint camera calibration 3D reconstruction
標簽： introduces constraint invariant explicit
上傳時間： 2014-01-16
上傳用戶：6546544
《多傳感器數(shù)據(jù)融合手冊》 《Handbook of Multisensor Data Fusion》 作者: David L. Hall 定價: USD 199.95 出版社: CRC 出版年: 2001-06-20 簡介 · · · · · · Multisensor data fusion is an emerging technology with important applications in both the military and civilian sectors, such as target recognition, robotics, medical diagnostics, and "smart" buildings. It draws on techniques from wide-ranging disciplines, including artificial intelligence, pattern recognition, and statistical estimation. This handbook is an up-to-date, comprehensive resource for data fusion system designers and researchers. Top experts in the field lead readers from a basic introduction and survey of data fusion technology to advanced mathematics and theory and to some very practical advice for systems implementers.
標簽： L. Multisensor Handbook 199.95
上傳時間： 2014-02-06
上傳用戶：二驅(qū)蚊器
This data set contains WWW-pages collected from computer science departments of various universities in January 1997 by the World wide Knowledge Base (Web->Kb) project of the CMU text learning group. The 8,282 pages were manually classified into the following categories: student (1641) faculty (1124) staff (137) department (182) course (930) project (504) other (3764)
標簽： universities departments WWW-pages collected
上傳時間： 2015-11-12
上傳用戶：chenlong
什么是 VBScript？ Microsoft Visual Basic Scripting Edition 是程序開發(fā)語言 Visual Basic 家族的最新成員，它將靈活的腳本應(yīng)用于更廣泛的領(lǐng)域，包括 Microsoft Internet Explorer 中的 Web 客戶機腳本和 Microsoft Internet Information Service 中的 Web 服務(wù)器腳本。 ActiveX腳本可用在 Microsoft(R) Internet Explorer 和 Microsoft(R) Internet Information Service 中。 其他應(yīng)用程序和瀏覽器中的 VBScript 作為開發(fā)者，您可以在您的產(chǎn)品中免費使用 VBScript 源實現(xiàn)程序。Microsoft 為 32 位 Windows(R) API、16 位 Windows API 和 Macintosh(R) 提供 VBscript 的二進制實現(xiàn)程序。VBScript 與 World wide Web 瀏覽器集成在一起。VBScript 和 ActiveX腳本也可以在其他應(yīng)用程序中作為普通腳本語言使用。
標簽： Visual Basic Microsoft Scripting
上傳時間： 2013-12-14
上傳用戶：plsee
點陣字體產(chǎn)生工具以及相關(guān)顯示函數(shù)。 在開發(fā)嵌入式系統(tǒng)時，需要顯示不同大小或類型字體的漢字。顯然，對于嵌入式系統(tǒng)，不太可能使用矢量字體，而點陣字體，不同大小的字體不能簡單的縮放。 另外，對一個小系統(tǒng)，也不需要完整的字體，往往只要幾十個，甚至幾個就夠了。 一般，我們采用的方法是，自己準備點陣字體的數(shù)據(jù)，在顯示漢字時，把這些數(shù)據(jù)寫入顯存就行了。 這時又存在另外一個問題，由于是不完整的字庫，不能簡單的用漢字的內(nèi)碼去找到對應(yīng)的字體數(shù)據(jù)，如果逐個比較，又費時間。比較好的方法就是把字體數(shù)據(jù)排序，用二分法查找，這樣可以大大提高查找效率。 這里為以上問題提供了一個完整的解決方案： 產(chǎn)生字體數(shù)據(jù)：指定字體類型、大小，自動產(chǎn)生字體數(shù)據(jù)。 字體數(shù)據(jù)排序：可以按Unicode，也可以按Ansi排序。 集成顯示函數(shù)：提供相關(guān)顯示函數(shù)。為了節(jié)省空間，我們把文字分成thin和wide兩種，前者用于顯示傳統(tǒng)的ASCII字符集，后者用于顯示漢字等多(雙)字節(jié)字符
標簽： 點陣 字體 函數(shù) 嵌入式系統(tǒng)
上傳時間： 2014-12-05
上傳用戶：xiaoyunyun
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