Company X Accessories C1030-5510 manual Device enumeration, DeInit

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Device enumeration

The complete device handling is done by the API internally. It manages the resources of all enumerated devices and offers either a device pointer or handle to API users. Calling Init() prepares the API itself, while DeInit() does a complete cleanup and invalidates all device pointers and handles.

To find supported devices and work with them, Enumerate() must be called after Init(). Enumerate() can be called multiple times for either finding devices of different types or to find newly plugged devices (primary USB at the moment). One important thing is the following: Enumerate() does never remove a device from the internal device list and so invalidate any pointer, it just add new ones or does nothing, even if a USB device is removed. For a clean detection of a device removal, calling DeInit(), Init() and Enumerate() (in exactly that order) will build a new, clean device list, but invalidates all previous created device pointers and handles.

To identify devices in a unique way, each device gets a UID, which is a combination of device type name and connection point, so even after a complete cleanup and new enumeration, devices can be exactly identified by this value.

Methods/Functions

Init

API

Code

C++

static void ceDevice::Init()

CCE_RESULT Init()

.NET

static void ceDevice.Init()

Prepare internal structures, must be the first call to the UDK API. Can be called after invoking DeInit() again, see top of this section.

DeInit

API

Code

C++

static void ceDevice::DeInit()

CCE_RESULT DeInit()

.NET

static void ceDevice.DeInit()

Free up all internal allocated data, there must no subsequent call to the UDK API after this call, except Init() is called again. All retrieved device pointers and handles are invalid after this point.

USBS6 / C1030-5510

 

http://www.cesys.com/

User Doc V0.3

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Contents USBS6 June 29Copyright information Summary of USBS6 Feature listIncluded in delivery XC6SLX16-2CSG324C Fpga features Block DiagramSpartan-6TMFPGA USBS6 Top View Powering USBS6 Bus- powered USB is used as power supply input 3V@ ??? mAModes of operation ModeJtag connector ConfigurationName USB2.0 controller Signal NameUSB2.0 FX2LPTM Microcontroller Cypresstm CY7C68013A External memory Lpddr Sdram MT46H64M16LFCK-5MCB1DQ0 Peripherals SPI Flash MX25L12845EMI-10GLEDs HEX rotary DIP switchFpga Pin N8 Fpga Pin M11 Fpga Pin M10 Fpga Pin N9 USB to serial Uart interface External expansion connectorsDirection Comment J3 VG 96-pin external expansion connector IDC 2x25-Pin external expansion connector J4 J4 IDC 2x25-Pin external expansion connectorADDIO16 Cypress FX-2 LP and USB basics Clocking Fpga designsFX-2/FPGA slave Fifo connection Introduction to example Fpga designsISE Generate Programming File Properties Gen. Opt Fpga source code copyright information Disclaimer of warrantyFpga source code license Files and modules Design usbs6socSrc/wishbonepkg.vhd Src/usbs6soctop.vhd Src/wbintercon.vhdSrc/wbmafx2.vhd Src/wbslbram.vhdSrc/wbslmcb.vhd Src/wbsluart.vhdSrc/xiluartmacro Src/xilmcbmigSignals appusbh2ppktcounto70 and appusbp2hpktcounto70 Wishbone transactions Wishbone signals driven by the master Wishbone signals driven by slavesDesign usbs6bram ExampleSrc/usbs6bramtop.vhd Src/simtb/wbslbramtb.vhdUsbs6bram.xise Usbs6bram.ucfWbslbramtb.cmd Introduction Changes to previous versionsDriver installation WindowsRequirements Build UDKLets assume to use c\\udkapi Linux DriversPCI Makefile creation and build Preliminary Use APIs in own projects Add project to UDK buildAPI Functions in detail API Error handling++ and .NET API GetLastErrorCode Error code Kind of errorGetLastErrorText Methods/FunctionsInit Device enumerationDeInit Enumerate DeviceType DescriptionGetDeviceCount Static unsigned int ceDeviceGetDeviceCountGetDevice Static ceDevice *ceDeviceGetDeviceunsigned int uiIdxInformation gathering GetUDKVersionStringGetDeviceUID GetDeviceNameConstant Bus GetBusTypeGetMaxTransferSize Using devices OpenClose Void ceDeviceOpenReadRegister WriteRegisterReadBlock WriteBlockResetFPGA EnableInterruptWaitForInterrupt SetTimeOut ProgramFPGAFromBINProgramFPGAFromMemory ProgramFPGAFromMemoryZEnableBurst Void ceDeviceEnableBurstbool bEnableUDKLab IntroductionMain screen UDKLab Main ScreenUsing UDKLab Device selection flowFpga configuration Prepare to work with deviceFpga design flashing ProjectsSequence contents Add new initializing task Content panel Sequence startRegister entry Register panelData area entry Data area panelUsing SPI-Flash for configuration How to store configuration data in SPI-FlashM25P16 Fpga Connection Jtag Signal Name IO pairing and etch length report J3 VG-96 pin connector Differential pairs 28 IN, 12 IN/OUTNet name Direction52.506 Etch Length mm B18 J4 IDC-50 pin connector Differential pairs 17 IN/OUT Direction Fpga Bank Etch Length mm A28Addio 42.990 Mechanical dimensions USBS6 mechanical dimensions in mmTable of contents Table of Contents USB PCI ++ API
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