SmartARM9B92 是由廣州致遠電子有限公司完全按照工業級標準（EMC/EMI）設計開發的一款通用工控/教學開發平臺，其核心控制器采用了TI 公司最新推出的LM3S9000 系列芯片。LM3S9000 在通用處理性能方面取得了最新突破，實現了連接性、存儲器配置與高級運動控制的完美結合。SmartARM9B92 開發平臺提供了豐富的接口：外部總線接口（EPI）、USB OTG 接口、10/100Mbps 以太網接口、帶電氣隔離的CAN 接口、電機驅動板接口、帶電氣隔離的RS-485 接口、I2S 音頻接口、UART/Modem 接口和SD 卡接口等，同時集成了大容量存儲器，包括SRAM、SDRAM、nor Flash 和NAND Flash。SmartARM9B92平臺將LM3S9B92 的功能特性發揮的淋漓盡致，最大程度上滿足客戶的應用需求。
上傳時間： 2013-10-31
上傳用戶：hewenzhi
隨著嵌入式系統的迅速發展，其應用環境的廣泛性，復雜性對構建于系統上的nor和Nand閃存設備提出更高要求，需要閃存設備傳輸速度更快，體積更小，容量更大，穩定性更好。該文在基于Samsung公司的S3C2410處理器平臺上，針對FLASH閃存設備在嵌入式系統中的應用，詳細分析FLASH閃存設備的接口設計方法，并針對FLASH接口特點，提出Linux環境下norFLASH和 NandFLASH的驅動開發流程，給出詳細的代碼分析。
標簽： NandFLASH norFLASH 接口設計 驅動開發
上傳時間： 2013-10-08
上傳用戶：木子葉1
The information in this specification is subject to change without notice.Use of this specification for product design requires an executed license agreement from the CompactFlashAssociation.The CompactFlash Association shall not be liable for technical or editorial errors or omissions contained herein; norfor incidental or consequential damages resulting from the furnishing, performance, or use of this material.All parts of the CompactFlash Specification are protected by copyright law and all rights are reserved. Thisdocumentation may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to anyelectronic medium or machine readable form without prior consent, in writing, from the CompactFlash Association.The CFA logo is a trademark of the CompactFlash Association.Product names mentioned herein are for identification purposes only and may be trademarks and/or registeredtrademarks of their respective companies.© 1998-99, CompactFlash Association. All rights reserved.
標簽： 技術資料
上傳時間： 2013-10-08
上傳用戶：stewart·
嵌入式ARM9系列處理器支持U-Boot從nor FLASH或者Nand FLASH啟動，也支持U-Boot直接下載到內存中調試運行，根據U-Boot在不同啟動設備上的差異，添加Nand FLASH讀寫驅動和判別啟動位置程序，使U-Boot支持自動識別啟動。在基于S3C2440的硬件平臺上驗證通過，并正確引導了Linux內核。
上傳時間： 2013-10-16
上傳用戶：yanming8525826
This application note shows how to achieve low-cost, efficient serial configuration for Spartan FPGA designs. The approachrecommended here takes advantage of unused resources in a design, thereby reducing the cost, part count, memory size,and board space associated with the serial configuration circuitry. As a result, neither processor nor PROM needs to be fullydedicated to performing Spartan configuration.In particular, information is provided on how the idle processing time of an on-board controller can be used to loadconfiguration data from an off-board source. As a result, it is possible to upgrade a Spartan design in the field by sending thebitstream over a network.
上傳時間： 2013-11-01
上傳用戶：wojiaohs
Silicon Motion, Inc. has made best efforts to ensure that the information contained in this document is accurate andreliable. However, the information is subject to change without notice. No responsibility is assumed by SiliconMotion, Inc. for the use of this information, nor for infringements of patents or other rights of third parties.Copyright NoticeCopyright 2002, Silicon Motion, Inc. All rights reserved. No part of this publication may be reproduced, photocopied,or transmitted in any form, without the prior written consent of Silicon Motion, Inc. Silicon Motion, Inc. reserves theright to make changes to the product specification without reservation and without notice to our users
標簽： GUIDELINES LAYOUT 320 PCB
上傳時間： 2013-10-10
上傳用戶：manga135
Expert Choice represents a significant contribution to the decision making process 工t assists a decision maker in solving complex problems involving many criteria and several courses of action . An Expert Choice solution to a problem reflects the expertise of the decision maker , not the computer . Behavioral scientists have spent many years studying the human mind and how it makes decisions . They have found that humans are influenced by their previous experiences and this causes them to have biases . Basic instincts , preferences and environmental factors also play key roles in how we analyze data and make decisions . There 15 way to remove these factors from human decision making , nor would we necessarily want to , but as the problems of our world become more and more complex , it 15 necessary for us to employ a framework to help make more logical and less biased decisions while still taking our feelings and intuition into consideration .
標簽： contribution significant represents decision
上傳時間： 2015-06-02
上傳用戶：gmh1314
Linux下 MTD源代碼分析，針對nand flash和nor flash的驅動開發
上傳時間： 2015-06-07
上傳用戶：wxhwjf
AT91RM9200工程評估板的CPU源代碼，基于ARM920T內核的AT91RM9200，180MHz，32/64M SDRAM，4M nor Flash 10/100Mbps以太網，Linux操作系統。該源代碼經過修改和項目支持，可以穩定運行。有一定的工程參考價值
上傳時間： 2014-01-24
上傳用戶：cxl274287265
Flash-ROM（閃存）已經成為了目前最成功、流行的一種固態內存，與 EEPROM 相比具有讀寫速度快，而與 SRAM 相比具有非易失、以及價廉等優勢。而基于 nor 和 NAND 結構的閃存是現在市場上兩種主要的非易失閃存技術。 Intel 于 1988 年首先開發出 nor flash 技術，徹底改變了原先由 EPROM 和 EEPROM 一統天下的局面。緊接著，1989 年東芝公司發表了 NAND flash 技術（后將該技術無償轉讓給韓國 Samsung 公司），強調降低每比特的成本，更高的性能，并且象磁盤一樣可以通過接口輕松升級。
上傳時間： 2015-08-06
上傳用戶：lanwei
