USB 2.0 Board Design and Layout Guidelines pot

... Đồ án tốt nghiệpSơ lược về chuẩn USB 2.0 1.4 Cáp USB USB truyền tín hiệu và nguồn qua một cáp 4 sợi hình 1.2Có 3 tốc độ truyền dữ liệu: -USB tốc độ cao (USB high-speed): 480Mb/s. -USB ... Thường bị USB vật lý được chỉ ra trong hình 2.3gồm :- Giao diện bus USB. - Thiết bị USB logic.- Chức năng.Lê Ngọc Du - Lớp ĐT7 - K46 - ĐHBKHN12 Đồ án tốt nghiệpSơ lược về chuẩn USB 2.0 Chương ... bịkhác có thể được gắn tới USB. Lê Ngọc Du - Lớp ĐT7 - K46 - ĐHBKHN14 Đồ án tốt nghiệpSơ lược về chuẩn USB 2.0 Hình 1.1: Kiến trúc Bus [1]1.3.1.1 Máy chủ USB (USB Host)Chỉ có duy nhất...

... user interface coding to a more elegant approach, you need to stop thinking in terms of windows and controls and start looking at a user interface as an entire interrelated framework. In this ... hand-drawing controls) and data binding (for displaying and updating data without writing tedious code).Part 2: Custom Controls In this part, you’ll tackle one of the most important areas of Windows ... and interfaces.ã How user interfaces are modeled with objects in a Windows Forms application. You’ll learn about several key types of .NET classes, including controls, forms, components, and...

... the presentation layer and coordinate background tasks such as state management and handling of concurrent user activities. Design and Implementation Guidelines for Web Clients provides advice ... is weak. 14 Design and Implementation Guidelines for Web Clients Ultimately, you will have first-hand experience to help you identify the patterns that are most appropriate for your development ... descriptions, and then use Figure 2.1 to understand the reasons for using each design pattern. ● Identify the patterns that address your particular requirements, and then study the design- level and implementation- level...

... information for the thread. Therefore, the number of threads that you can create is limited by the amount of memory available. 116 Design and Implementation Guidelines for Web Clients ● Implementation ... Design and Implementation Guidelines for Web Clients With such a rich selection of synchronization mechanisms available to you, you must plan your thread synchronization design carefully and ... Current culture – Determines how various data types are formatted, such as numbers and dates. 136 Design and Implementation Guidelines for Web Clients ● Current user interface culture – Determines...

... http://rapidshare.com/files/27193221 /MAGIC_ WINXPE_ USB _BOOTABLE_ BY_HAIPHONG_ET_OLIVE.part02.rar http://rapidshare.com/files/27197076 /MAGIC_ WINXPE_ USB _BOOTABLE_ BY_HAIPHONG_ET_OLIVE.part03.rar ... http://rapidshare.com/files/27201382 /MAGIC_ WINXPE_ USB _BOOTABLE_ BY_HAIPHONG_ET_OLIVE.part04.rar http://rapidshare.com/files/27206945 /MAGIC_ WINXPE_ USB _BOOTABLE_ BY_HAIPHONG_ET_OLIVE.part05.rar ... http://rapidshare.com/files/27211480 /MAGIC_ WINXPE_ USB _BOOTABLE_ BY_HAIPHONG_ET_OLIVE.part06.rar http://rapidshare.com/files/27223824 /MAGIC_ WINXPE_ USB _BOOTABLE_ BY_HAIPHONG_ET_OLIVE.part07.rar...

... .NET 1.x to .NET 2.0 If you’ve programmed with .NET 1.x, you’ll find that a great deal remains the same in .NET 2.0. The underlying model for creating Windows Forms applications and custom controls ... into the Windows Forms architecture. Controls Are ClassesIn the .NET Framework, every control is a class. Windows controls are clustered in the System .Windows. Forms namespace. Web controls ... features and tune-ups you’ll discover as you explore Windows Forms and read through this book.What’s Still Missing in .NET 2.0 Even though .NET 2.0 is more than a minor upgrade to .NET 1.x,...

... Page 21 Professional ASP. NET 2.0 Security, Membership, and Role Management 03_596985 flast.qxp 12/14/05 7:45 PM Page xxv beyond just page classes. For example, ASP. NET 2.0 dynamically generates ... integrate Membership and Role Manager with classic ASP. ❑ Chapter 7 covers security features and guidance for session state. New session state security fea-tures introduced in ASP. NET 2.0 are ... Professional ASP. NET 2.0 Security, Membership, and Role Management Stefan Schackow01_596985 ffirs.qxp 12/14/05 7:45 PM Page i xviiContentsPostAuthenticateRequest 531EndRequest 534 Role Cache...

... cơ bản về một số mảng chính sau: Chuẩn USB 2.0, họ vi điều khiển PIC (vì vi điều khiển mà ta sử dụng trong đề tài là vi điều khiển PIC của hãng MicroChip), truyền tín hiệu điều khiển sử dụng ... phm. ã Chương 8: Thiết kế bộ thu Chương này sẽ giới thiệu sơ qua về họ vi điều khiển PIC-loại vi điều khiển mà ta sử dụng cho sản phẩm của đề tài và phần phân tích thiết kế bộ thu. Đồ án ... nào cho hợp lý và khả thi nhất. Sau một thời gian tìm hiểu, phương án đã được lựa chọn cho đề tài là: bộ phát sử dụng sóng cao tần để truyền lệnh điều khiển, về phía bộ thu sẽ thực hiện bộ điều...

... CustomControls and User Controls The previous chapter discussed in detail why you need to develop custom controls and compo-nents. There are two basic types of ASP.NET server controls: custom controls ... Ajax-enabled controls and components.❑ It exchanges data with the server in XML format. Chapter 27, 28, and 29 show you how todevelop Ajax-enabled controls and components that use XML, DOM, and JavaScript ... compo-nents of the ASP.NET Framework, and to make a case as to why you need to extend these componentsto implement your own custom server controls and components.Although ASP.NET 2.0 does provide...

... the Windows Forms engine. The Windows Forms engine handles the Windows operating system messages that change focus or activate a window, and tells controls to paint themselves by calling their ... are built into the Windows Forms model—GDI+ (for hand-drawing controls) and data binding (for displaying and updating data without writing tedious code).Part 2: Custom Controls In this part, ... docs, Pro .NET 2.0 Windows Forms and Custom Controls does an excellent job of filtering the information down to what developers really need to harness the power and inno-vations of Windows Forms...

... 11 White Paper | Plant equipment design and layout Issued by: Siemens PLM Software. â 20 11. Siemens Product Lifecycle Management Software Inc. All rights reserved. Simplified parts and assemblies ... 16 White Paper | Plant equipment design and layout Issued by: Siemens PLM Software. â 20 11. Siemens Product Lifecycle Management Software Inc. All rights reserved. Managed design collaboration ... ownership and dramatic return on investment. 12 White Paper | Plant equipment design and layout Issued by: Siemens PLM Software. â 20 11. Siemens Product Lifecycle Management Software Inc....

... www.ti.comDon'tDoAnalogPowerPlaneUnwantedCapacitanceDigitalPowerPlaneUSBPHYLayoutGuideFigure7.DoNotCrossPlaneBoundariesãDonotoverlapplanesthatdonotreferenceeachother.Forexample,donotoverlapadigitalpowerplanewithananalogpowerplaneasthisproducesacapacitancebetweentheoverlappingareasthatcouldpassRFemissionsfromoneplanetotheother,asshowninFigure8.Figure8.DoNotOverlapPlanesSPRAAR7December200 7USB2 .0BoardDesignandLayoutGuidelines7SubmitDocumentationFeedback www.ti.com2USBPHYLayoutGuide2.1GeneralRoutingandPlacement2.2SpecificGuidelinesforUSBPHYLayout2.2.1Analog,PLL,andDigitalPowerSupplyFilteringAnalogPowerSupplySoCBoardFerriteBeadDigitalPowerSupplyFerriteBead0.1àF0.01àF0.001àF10àF0.1àF0.01àF0.001àF10àFUSBPHYLayoutGuideThefollowingsectionsdescribeindetailthespecificguidelinesforUSBPHYLayout.UsethefollowingroutingandplacementguidelineswhenlayingoutanewdesignfortheUSBphysicallayer(PHY).Theseguidelineshelpminimizesignalqualityandelectromagneticinterference(EMI)problemsonafour-or-morelayerevaluationmodule(EVM).ãPlacetheUSBPHYandmajorcomponentsontheun-routedboardfirst.Formoredetails,seeSection2.2.3.ãRoutethehigh-speedclockandhigh-speedUSBdifferentialsignalswithminimumtracelengths.ãRoutethehigh-speedUSBsignalsontheplaneclosesttothegroundplane,wheneverpossible.ãRoutethehigh-speedUSBsignalsusingaminimumofviasandcorners.Thisreducessignalreflectionsandimpedancechanges.ãWhenitbecomesnecessarytoturn90,usetwo45turnsoranarcinsteadofmakingasingle90turn.Thisreducesreflectionsonthesignaltracesbyminimizingimpedancediscontinuities.ãDonotrouteUSBtracesunderornearcrystals,oscillators,clocksignalgenerators,switchingregulators,mountingholes,magneticdevicesorICsthatuseorduplicateclocksignals.ãAvoidstubsonthehigh-speedUSBsignalsbecausetheycausesignalreflections.Ifastubisunavoidable,thenthestubshouldbelessthan200mils.ãRouteallhigh-speedUSBsignaltracesovercontinuousplanes(VCCorGND),withnointerruptions.Avoidcrossingoveranti-etch,commonlyfoundwithplanesplits.ThefollowingsectionsdescribeindetailthespecificguidelinesforUSBPHYLayout.TominimizeEMIemissions,adddecouplingcapacitorswithaferritebeadatpowersupplyterminalsfortheanalog,phase-lockedloop(PLL),anddigitalportionsofthechip.Placethisarrayasclosetothechipaspossibletominimizetheinductanceofthelineandnoisecontributionstothesystem.AnanaloganddigitalsupplyexampleisshowninFigure1.Incaseofmultiplepowersupplypinswiththesamefunction,tiethemuptoasinglelow-impedancepointintheboardandthenaddthedecouplingcapacitors,inadditiontotheferritebead.ThisarrayofcapsandferritebeadimproveEMIandjitterperformance.TakebothEMIandjitterintoaccountbeforealteringtheconfiguration.Figure1.SuggestedArrayCapacitorsandaFerriteBeadtoMinimizeEMI 2USB2 .0BoardDesignandLayoutGuidelinesSPRAAR7December2007SubmitDocumentationFeedback ... 1BackgroundApplicationReportSPRAAR7–December2007 USB2 .0BoardDesignandLayoutGuidelinesDSPSApplications ABSTRACTThisdocumentdiscussesschematicguidelineswhendesigningauniversalserialbus (USB) system.Contents1Background 12USBPHYLayoutGuide ... www.ti.com3.4ESDProtectionSystemDesignConsideration4ReferencesReferencesESDprotectionsystemdesignconsiderationiscoveredinSection2ofthisdocument.ThefollowingareadditionalconsiderationsforESDprotectioninasystem.ãMetallicshieldingforbothESDandEMIãChassisGNDisolationfromtheboardGNDãAirgapdesignedonboardtoabsorbESDenergyãClampingdiodestoabsorbESDenergyãCapacitorstodivertESDenergyãTheuseofexternalESDcomponentsontheDP/DMlinesmayaffectsignalqualityandarenotrecommended. USB2 .0Specification,Intel,2000,http://www .usb. org/developers/docs/ãHighSpeedUSBPlatformDesignGuidelines,Intel,2000,http://www.intel.com/technology /usb/ download /usb2 dg_R1_0.pdfãSelectionandSpecificationofCrystalsforTexasInstrumentsUSB2.0Devices(SLLA122)1 0USB2 .0BoardDesignandLayoutGuidelinesSPRAAR7December2007SubmitDocumentationFeedback...