伊人一区二区三区久久精品,精品国产影院,伊人久久高清

DOUBLE-linked

Dsp281x外設資料

This overview guide describes all the peripherals available for TMS320x28xx and TMS320x28xxx devices.Section 2 shows the peripherals used by each device. Section 3 provides descriptions of the peripherals.You can download the peripheral guide by clicking on the literature number, which is linked to the portable document format (pdf) file.

標簽： 281x Dsp 281 外設

上傳時間： 2013-11-21

上傳用戶：HGH77P99
XAPP806 -決定DDR反饋時鐘的最佳DCM相移

This application note describes how to build a system that can be used for determining theoptimal phase shift for a Double Data Rate (DDR) memory feedback clock. In this system, theDDR memory is controlled by a controller that attaches to either the OPB or PLB and is used inan embedded microprocessor application. This reference system also uses a DCM that isconfigured so that the phase of its output clock can be changed while the system is running anda GPIO core that controls that phase shift. The GPIO output is controlled by a softwareapplication that can be run on a PowerPC® 405 or Microblaze™ microprocessor.

標簽： XAPP 806 DDR DCM

上傳時間： 2013-10-15

上傳用戶：euroford
基于FPGA的光纖光柵解調系統的研究

波長信號的解調是實現光纖光柵傳感網絡的關鍵，基于現有的光纖光柵傳感器解調方法，提出一種基于FPGA的雙匹配光纖光柵解調方法，此系統是一種高速率、高精度、低成本的解調系統，并且通過引入雙匹配光柵有效地克服了雙值問題同時擴大了檢測范圍。分析了光纖光柵的測溫原理并給出了該方案軟硬件設計，綜合考慮系統的解調精度和FPGA的處理速度給出了基于拉格朗日的曲線擬合算法。 Abstract: Sensor is one of the most important application of the fiber grating. Wavelength signal demodulating is the key techniques to carry out fiber grating sensing network， based on several existing methods of fiber grating sensor demodulation inadequate， a two-match fiber grating demodulation method was presented. This system is a high-speed， high precision， low-cost demodulation system. And by introducing a two-match grating effectively overcomes the problem of double value while expands the scope of testing. This paper analyzes the principle of fiber Bragg grating temperature and gives the software and hardware design of the program. Considering the system of demodulation accuracy and processing speed of FPGA，this paper gives the curve fitting algorithm based on Lagrange.

標簽： FPGA 光纖光柵解調系統

上傳時間： 2014-07-24

上傳用戶：caiguoqing
半導體制造技術_英文教程

The correct answer for each test bank question is highlighted in bold. Test bank questions are based on the end-of-chapter questions. If a student studies the end-of-chapter questions (which are linked to the italicized words in each chapter), then they will be successful on the test bank questions.

標簽： 半導體制造技術英文教程

上傳時間： 2014-12-31

上傳用戶：旗魚旗魚
XAPP806 -決定DDR反饋時鐘的最佳DCM相移

This application note describes how to build a system that can be used for determining theoptimal phase shift for a Double Data Rate (DDR) memory feedback clock. In this system, theDDR memory is controlled by a controller that attaches to either the OPB or PLB and is used inan embedded microprocessor application. This reference system also uses a DCM that isconfigured so that the phase of its output clock can be changed while the system is running anda GPIO core that controls that phase shift. The GPIO output is controlled by a softwareapplication that can be run on a PowerPC® 405 or Microblaze™ microprocessor.

標簽： XAPP 806 DDR DCM

上傳時間： 2014-11-26

上傳用戶：erkuizhang
XAPP944 - 將Xilinx CoolRunner-II CPLD用作數據流開關

This application note shows how a Xilinx CoolRunnerTM-II CPLD can be used as a simplelogical switch that can quickly and reliably select between different MPEG video sources. Thesource code for the design is available on the Xilinx website, and is linked from the “VHDLCode” section. The code can be expanded by the user to perform additional operations usingthe remaining CPLD resources

標簽： CoolRunner-II Xilinx XAPP CPLD

上傳時間： 2013-12-16

上傳用戶：qwer0574
基于FPGA的光纖光柵解調系統的研究

波長信號的解調是實現光纖光柵傳感網絡的關鍵，基于現有的光纖光柵傳感器解調方法，提出一種基于FPGA的雙匹配光纖光柵解調方法，此系統是一種高速率、高精度、低成本的解調系統，并且通過引入雙匹配光柵有效地克服了雙值問題同時擴大了檢測范圍。分析了光纖光柵的測溫原理并給出了該方案軟硬件設計，綜合考慮系統的解調精度和FPGA的處理速度給出了基于拉格朗日的曲線擬合算法。 Abstract: Sensor is one of the most important application of the fiber grating. Wavelength signal demodulating is the key techniques to carry out fiber grating sensing network， based on several existing methods of fiber grating sensor demodulation inadequate， a two-match fiber grating demodulation method was presented. This system is a high-speed， high precision， low-cost demodulation system. And by introducing a two-match grating effectively overcomes the problem of double value while expands the scope of testing. This paper analyzes the principle of fiber Bragg grating temperature and gives the software and hardware design of the program. Considering the system of demodulation accuracy and processing speed of FPGA，this paper gives the curve fitting algorithm based on Lagrange.

標簽： FPGA 光纖光柵解調系統

上傳時間： 2013-10-10

上傳用戶：zxc23456789
DRAM內存模塊的設計技術

第二部分：DRAM 內存模塊的設計技術..............................................................143第一章 SDR 和DDR 內存的比較..........................................................................143第二章內存模塊的疊層設計.............................................................................145第三章內存模塊的時序要求.............................................................................1493.1 無緩沖（Unbuffered）內存模塊的時序分析.......................................1493.2 帶寄存器（Registered）的內存模塊時序分析...................................154第四章內存模塊信號設計.................................................................................1594.1 時鐘信號的設計.......................................................................................1594.2 CS 及CKE 信號的設計..............................................................................1624.3 地址和控制線的設計...............................................................................1634.4 數據信號線的設計...................................................................................1664.5 電源，參考電壓Vref 及去耦電容.........................................................169第五章內存模塊的功耗計算.............................................................................172第六章實際設計案例分析.................................................................................178 目前比較流行的內存模塊主要是這三種：SDR，DDR，RAMBUS。其中，RAMBUS內存采用阻抗受控制的串行連接技術,在這里我們將不做進一步探討，本文所總結的內存設計技術就是針對SDRAM 而言(包括SDR 和DDR)。現在我們來簡單地比較一下SDR 和DDR，它們都被稱為同步動態內存，其核心技術是一樣的。只是DDR 在某些功能上進行了改進，所以DDR 有時也被稱為SDRAM II。DDR 的全稱是Double Data Rate，也就是雙倍的數據傳輸率，但是其時鐘頻率沒有增加，只是在時鐘的上升和下降沿都可以用來進行數據的讀寫操作。對于SDR 來說,市面上常見的模塊主要有PC100/PC133/PC166,而相應的DDR內存則為DDR200(PC1600)/DDR266(PC2100)/DDR333(PC2700)。

標簽： DRAM 內存模塊設計技術

上傳時間： 2013-10-18

上傳用戶：宋桃子
This article is based in part on Bob Place s ADO is AOK (a simple ADO tutorial). Wrapper Usage This

This article is based in part on Bob Place s ADO is AOK (a simple ADO tutorial). Wrapper Usage This is consist of 2 classes. CDyndb : This Class manages connections and recordsets. Recordsets are organized as linked list (CList) and you can access them using their ids. CDynRec : This class is the node to populate for each recordsets. ADO封裝器類這篇文章一部分基于Bob Place的《ADO is AOK》 (簡單的ADO指導) 。包裹的用法由2個類組成。類CDyndb: 這個類別管理連接和記錄集。記錄集是連接起來的記錄的集合，你可以通過他們的ID訪問他們。類CDynRec: 這個類別存放記錄集的代碼。

標簽： This ADO tutorial article

上傳時間： 2013-12-14

上傳用戶：wfl_yy
MemCheck Driver Memory Tool The MemCheck code is designed to provide Windows NT/2K/XP driver develop

MemCheck Driver Memory Tool The MemCheck code is designed to provide Windows NT/2K/XP driver developers with a tool to help in the detection of the following memory handling issues: Buffer overrun Buffer corruption Buffer use after buffer release Double buffer releases

標簽： MemCheck designed Windows develop

上傳時間： 2014-12-05

上傳用戶：weiwolkt