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.
上傳時(shí)間: 2014-11-26
上傳用戶(hù):erkuizhang
針對(duì)嵌入式機(jī)器視覺(jué)系統(tǒng)向獨(dú)立化、智能化發(fā)展的要求,介紹了一種嵌入式視覺(jué)系統(tǒng)--智能相機(jī)。基于對(duì)智能相機(jī)體系結(jié)構(gòu)、組成模塊和圖像采集、傳輸和處理技術(shù)的分析,對(duì)國(guó)內(nèi)外的幾款智能相機(jī)進(jìn)行比較。綜合技術(shù)發(fā)展現(xiàn)狀,提出基于FPGA+DSP模式的硬件平臺(tái),并提出智能相機(jī)的發(fā)展方向。分析結(jié)果表明,該系統(tǒng)設(shè)計(jì)可以實(shí)現(xiàn)脫離PC運(yùn)行,完成圖像獲取與分析,并作出相應(yīng)輸出。 Abstract: This paper introduced an embedded vision system-intelligent camera ,which was for embedded machine vision systems to an independent and intelligent development requirements. Intelligent camera architecture, component modules and image acquisition, transmission and processing technology were analyzed. After comparing integrated technology development of several intelligent cameras at home and abroad, the paper proposed the hardware platform based on FPGA+DSP models and made clear direction of development of intelligent cameras. On the analysis of the design, the results indicate that the system can run from the PC independently to complete the image acquisition and analysis and give a corresponding output.
標(biāo)簽: FPGA DSP 模式 智能相機(jī)
上傳時(shí)間: 2013-11-14
上傳用戶(hù):無(wú)聊來(lái)刷下
三菱FX-PLC 的通訊協(xié)議參考(含有源碼):三菱FX 系列PLC 專(zhuān)用協(xié)議通信指令一覽FX 系列PLC 專(zhuān)用協(xié)議通信指令一覽以下將詳細(xì)列出PLC 專(zhuān)用協(xié)議通信的指令指令 注釋BR 以1 點(diǎn)為單位,讀出位元件的狀態(tài)WR 以16 點(diǎn)為單位,讀出位元件的狀態(tài),或以1 字為單位讀出字元件的值BW 以1 點(diǎn)為單位,寫(xiě)入位元件的狀態(tài)WW 以16 點(diǎn)為單位,寫(xiě)入位元件的狀態(tài)或以1 字為單位寫(xiě)入值到字元件BT 以1 點(diǎn)為單位,SET/RESET 位元件WT 以16 點(diǎn)為單位,SET/RESET 位元件,或?qū)懭胫档阶衷R 控制PLC 運(yùn)行RUNRS 控制PLC 停止STOPPC 讀出PLC 設(shè)備類(lèi)型TT 連接測(cè)試注:位元件包括X,Y,M,S 以及T,C 的線(xiàn)圈等字元件包括D,T,C,KnX,KnY,KnM 等。
標(biāo)簽: FX-PLC 三菱 通訊協(xié)議 有源
上傳時(shí)間: 2015-01-02
上傳用戶(hù):gdgzhym
摘要 ? ? ? ? 設(shè)計(jì)時(shí)的自動(dòng)化加快了編碼,并保證所有過(guò)程都用相同的命名規(guī)范和結(jié)構(gòu)來(lái)生成。為了在大型 SQL 項(xiàng)目中盡量提高編碼的效率,作者編寫(xiě)了一系列的設(shè)計(jì)時(shí)(design-time)存儲(chǔ)過(guò)程,用它們來(lái)生成運(yùn)行時(shí)(run-time)存儲(chǔ)過(guò)程,并一直在工程中使用。最近,作者更新了其存儲(chǔ)過(guò)程以便使用 SQL Server 2000 的特性,其中包括用戶(hù)定義函數(shù)。本文所及內(nèi)容涵蓋創(chuàng)建并執(zhí)行這些動(dòng)態(tài) T-SQL 腳本以使普通的數(shù)據(jù)庫(kù)存儲(chǔ)過(guò)程編碼自動(dòng)化。
標(biāo)簽: 計(jì)時(shí) 自動(dòng)化 編碼
上傳時(shí)間: 2014-01-11
上傳用戶(hù):遠(yuǎn)遠(yuǎn)ssad
S3C44BOX的BIOS。可使用的命令:help --- show help ? --- = help date --- show or set current date time --- show or set current time setweek --- set weekday clock --- show system running clock setmclk --- set system running clock setbaud ------ set baud rate ipcfg ------ show or set IP address load ------ load file to ram comload ------ load file from serial port run ------ run from sdram prog ------ program flash copy ------ copy flash from src to dst address boot ------ boot from flash backup ------ move bios to the top of flash md ------ show memory data move ------ move program from flash to sdram
標(biāo)簽: help date show current
上傳時(shí)間: 2015-01-22
上傳用戶(hù):ANRAN
The Gray Watson debugging malloc library is C source code for a drop in replacement for the system malloc & other memory manage ment routines. What is unique about this library is that it contains a number of powerful debugging facilities including very comprehensive heap testing and ex- cellent run-time debugging information.
標(biāo)簽: replacement debugging for library
上傳時(shí)間: 2015-02-05
上傳用戶(hù):TF2015
URL編程例子,通過(guò)IP獲取計(jì)算機(jī)名字。運(yùn)行方法:1. Compile: javac GetHost 2. Run: java GetHost 111.111.111.1(your IP or others)
上傳時(shí)間: 2015-02-13
上傳用戶(hù):徐孺
a very simple program that prints "Hello World" to the serial port of the 8051. When you can successfully build and run this program, you have used the entire toolset including:
標(biāo)簽: the program success simple
上傳時(shí)間: 2013-11-26
上傳用戶(hù):stampede
用java開(kāi)發(fā)終端平臺(tái)上的Application程序, 比使用C++,Delphi等語(yǔ)言更加容易。 java語(yǔ)言似乎天生就適合團(tuán)隊(duì)開(kāi)發(fā)。但是,擺在廣大java開(kāi)發(fā)者面前的一個(gè)難題是,客戶(hù)端必須安裝JRE。真的必須安裝JRE嗎?其實(shí)你可以不裝,只要使用Java Runner,無(wú)論在哪里,你的程序都可以Run起來(lái)。
標(biāo)簽: Application java 程序
上傳時(shí)間: 2014-11-01
上傳用戶(hù):qiaoyue
這是一個(gè)測(cè)試Timer類(lèi)用法的程序.程序會(huì)隨機(jī)產(chǎn)生10個(gè)時(shí)間, 并在時(shí)間到的時(shí)候出發(fā)Task類(lèi)對(duì)象中的run方法
標(biāo)簽: Timer 程序 測(cè)試 隨機(jī)
上傳時(shí)間: 2015-03-21
上傳用戶(hù):wl9454
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