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  • The first task at hand is to set up the endpoints appropriately for this example. The following code

    The first task at hand is to set up the endpoints appropriately for this example. The following code switches the CPU clock speed to 48 MHz (since at power-on default it is 12 MHz), and sets up EP2 as a Bulk OUT endpoint, 4x buffered of size 512, and EP6 as a Bulk IN endpoint, also 4x buffered of size 512. This set-up utilizes the maximum allotted 4-KB FIFO space. It also sets up the FIFOs for manual mode, word-wide operation, and goes through a FIFO reset and arming sequence to ensure that they are ready for data operations

    标签: appropriately The endpoints following

    上传时间: 2013-12-02

    上传用户:dianxin61

  • 关于苹果机开发的电子书:1.Apple.Mac.OS.X.Development.Tools.Overview.Jun.2003.eBook 2.Apple.The.Objective.C.Prog

    关于苹果机开发的电子书:1.Apple.Mac.OS.X.Development.Tools.Overview.Jun.2003.eBook 2.Apple.The.Objective.C.Programming.Language.Dec.2006.eBook 3.Apress.AppleScript.The.Comprehensive.Guide.to.Scripting.and.Automation.on.Mac.OS.X.2nd.Edition.Sep.2006.eBook-BBL 4.Apple.A.Quick.Tour.of.Xcode.Aug.2003.eBook 5.FreeBook.AppleScript.for.Absolute.Starters.Mar.2003.eBook 6.FreeBook.Become.an.Xcoder.Start.Programming.the.Mac.use.Objective-C.Apr.2006.eBook

    标签: Apple Development Objective Overview

    上传时间: 2016-03-10

    上传用户:asddsd

  • 工具:Dynamips, VPCS 结点: R1: 10.0.0.0/8, 90.0.0.0/8 R2: 20.0.0.0/8, 90.0.0.0/8 S1: ethsw(以太网交换机) H

    工具:Dynamips, VPCS 结点: R1: 10.0.0.0/8, 90.0.0.0/8 R2: 20.0.0.0/8, 90.0.0.0/8 S1: ethsw(以太网交换机) H1: 10.0.0.2 H2: 20.0.0.2 H3: 10.0.0.3 要求: 在R1的E2/0上部署out扩展ACL只禁止10.0.0.3访问90.0.0.2 在R2的E0/0上部署out标准ACL只禁止来自10.0.0.2的流量 在R2的E2/0上部署反身(reflexive)ACL 允许E2/0接口接收由20.0.0.0子网主动发起的返回流量 允许E2/0接口连接的其他网络可以主动访问R2自己 禁止其他流量

    标签: Dynamips ethsw 90 VPCS

    上传时间: 2016-03-10

    上传用户:heart520beat

  • 实验十一 数/模转换器 一、实验目的 了解数/模转换器的基本原理

    实验十一 数/模转换器 一、实验目的 了解数/模转换器的基本原理,掌握DAC0832芯片的使用方法。 二、实验内容 1、实验电路原理如图11-1,DAC0832采用单缓冲方式,具有单双极性输入端(图中的Ua、Ub),利用debug输出命令(Out 290 数据)输出数据 给DAC0832,用万用表测量单极性输出端Ua及双极性输出端Ub的电压,验证数字与电压之间的线性关系。 2、编程产生以下波形(从Ub输出,用示波器观察) (1)正弦波 三、编程提示 1、8位D/A转换器DAC0832的口地址为290H,输入数据与输出电压的关系参考实验指导原理图: 2、产生锯齿波只须将输出到DAC0832的数据由0循环递增。产生正弦波可根据正弦函数建一个下弦数字量表,取值范围为一个周期,表中数 据个数在16个以上。

    标签: 实验 模转换器

    上传时间: 2013-12-16

    上传用户:colinal

  • 一、实验目的 了解数/模转换器的基本原理

    一、实验目的 了解数/模转换器的基本原理,掌握DAC0832芯片的使用方法。 二、实验内容 1、实验电路原理如图36,DAC0832采用单缓冲方式,具有单双极性输入端(图中的Ua、Ub),利用debug输出命令(Out 290 数据)输出数据给DAC0832,用万用表测量单极性输出端Ua及双极性输出端Ub的电压,验证数字与电压之间的线性关系。 2、编程产生以下波形(从Ub输出,用示波器观察) (1)锯齿波 三、编程提示 1、8位D/A转换器DAC0832的口地址为290H,输入数据与输出电压的关系为: (UREF表示参考电压,N表示数数据),这里的参考电压为PC机的+5V电源。 2、产生锯齿波只须将输出到DAC0832的数据由0循环递增。

    标签: 实验 模转换器

    上传时间: 2016-03-12

    上传用户:ywqaxiwang

  • 基于OFDM的无线宽带系统仿真It contains mainly two parts, i.e. link-level simulator and system-level simulator.

    基于OFDM的无线宽带系统仿真It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation. System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate.

    标签: simulator i.e. system-level link-level

    上传时间: 2016-03-15

    上传用户:xsnjzljj

  • Data mining (DM) is the extraction of hidden predictive information from large databases (DBs). Wit

    Data mining (DM) is the extraction of hidden predictive information from large databases (DBs). With the automatic discovery of knowledge implicit within DBs, DM uses sophisticated statistical analysis and modeling techniques to uncover patterns and relationships hidden in organizational DBs. Over the last 40 years, the tools and techniques to process structured information have continued to evolve from DBs to data warehousing (DW) to DM. DW applications have become business-critical. DM can extract even more value out of these huge repositories of information.

    标签: information extraction predictive databases

    上传时间: 2016-03-19

    上传用户:啊飒飒大师的

  • 此程序用于视频采集过程中CPLD对时序的转换与组合代码

    此程序用于视频采集过程中CPLD对时序的转换与组合代码,每两行采集一行,两列采集一列,减小数据量,同时能保证采集完整的一幅图像(输出OUT用于DSP或者单片机中断)

    标签: CPLD 程序 时序 代码

    上传时间: 2013-12-25

    上传用户:lingzhichao

  • ### ### ### ### ### ### ### ##### LCD_Show_image LCD_CPU_Show_image macro ImageDPR Set_DPR 0,Imag

    ### ### ### ### ### ### ### ##### LCD_Show_image LCD_CPU_Show_image macro ImageDPR Set_DPR 0,ImageDPR DPSR,DPR LCD_CPU_Show_image_NoDPR endm ############################################### LCD_Show_image ############################################### LCD_Show_R LCD_RGB_Show_Color macro Color local START,Vertical_loop,Horizontal_loop,Vertical_loop_A,Horizontal_loop_A,VLW_loop START:

    标签: LCD_CPU_Show_image LCD_Show_image ImageDPR Set_DPR

    上传时间: 2014-12-08

    上传用户:黄华强

  • In just 24 lessons of one hour or less, you will be able to build dynamic Web sites using JavaServer

    In just 24 lessons of one hour or less, you will be able to build dynamic Web sites using JavaServer Pages. Using a straightforward, step-by-step approach, each lesson builds on the previous ones, enabling you to learn the essentials of JavaServer Pages 2.0 from the ground up. The book includes Apache Tomcat, Sun s reference implementation of JSP, so you can start developing applications immediately.

    标签: JavaServer dynamic lessons build

    上传时间: 2014-11-25

    上传用户:TRIFCT