the procedures usb interface procedure, the ISE tools, pc achieve usb and communications between the mainframe, using a USB chip is FT245BM.

USB_ReferenceDesign
...................\Hardware
...................\........\QuartusProject
...................\........\..............\cmp_state.ini
...................\........\..............\db
...................\........\..............\..\cntr_c18.tdf
...................\........\..............\..\cntr_hc7.tdf
...................\........\..............\..\cntr_np7.tdf
...................\........\..............\..\cntr_uv7.tdf
...................\........\..............\..\mux_o9c.tdf
...................\........\..............\..\smpdmp_net_1.txt
...................\........\..............\..\smpdmp_net_11.txt
...................\........\..............\..\smpdmp_net_22.txt
...................\........\..............\..\USBRefDesign.db_info
...................\........\..............\..\USBRefDesign.eco.cdb
...................\........\..............\..\USBRefDesign.sld_design_entry.sci
...................\........\..............\..\USBRefDesign_cmp.qrpt
...................\........\..............\DivideClock.bsf
...................\........\..............\DivideClock.v
...................\........\..............\InverseAddress.mif
...................\........\..............\LCDInterface.bsf
...................\........\..............\LCDInterface.v
...................\........\..............\lcd_controller.bsf
...................\........\..............\lcd_controller.v
...................\........\..............\LEDFlasher.bsf
...................\........\..............\LEDFlasher.v
...................\........\..............\PassivesInterface.bsf
...................\........\..............\PassivesInterface.v
...................\........\..............\sim.cfg
...................\........\..............\SRAMDataTri.bsf
...................\........\..............\SRAMDataTri.inc
...................\........\..............\SRAMDataTri.tdf
...................\........\..............\SRAMInterface.bsf
...................\........\..............\SRAMInterface.v
...................\........\..............\SwitchCounter.bsf
...................\........\..............\SwitchCounter.v
...................\........\..............\TempInterface.bsf
...................\........\..............\TempInterface.v
...................\........\..............\TempSensor.v
...................\........\..............\TheDirector.bsf
...................\........\..............\TheDirector.v
...................\........\..............\UFMInterface.bsf
...................\........\..............\UFMInterface.v
...................\........\..............\USBDataOutMux.bsf
...................\........\..............\USBDataOutMux.v
...................\........\..............\USBDataTri.bsf
...................\........\..............\USBDataTri.inc
...................\........\..............\USBDataTri.tdf
...................\........\..............\USBRefDesign.asm.rpt
...................\........\..............\USBRefDesign.bdf
...................\........\..............\USBRefDesign.cdf
...................\........\..............\USBRefDesign.done
...................\........\..............\USBRefDesign.fit.eqn
...................\........\..............\USBRefDesign.fit.rpt
...................\........\..............\USBRefDesign.fit.summary
...................\........\..............\USBRefDesign.flow.rpt
...................\........\..............\USBRefDesign.map.eqn
...................\........\..............\USBRefDesign.map.rpt
...................\........\..............\USBRefDesign.map.summary
...................\........\..............\USBRefDesign.pin
...................\........\..............\USBRefDesign.pof
...................\........\..............\USBRefDesign.qpf
...................\........\..............\USBRefDesign.qsf
...................\........\..............\USBRefDesign.qws
...................\........\..............\USBRefDesign.sim.rpt
...................\........\..............\USBRefDesign.tan.rpt
...................\........\..............\USBRefDesign.tan.summary
...................\........\..........

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