I have installed xilinx xpc4drvr.ko and it is shown in lsmod.
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xpc4drvr 17644 0
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After connecting the board, it showed the board could be found.
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[ 154.376085] usb 2-1: new high-speed USB device number 6 using xhci_hcd
[ 154.392204] usb 2-1: New USB device found, idVendor=0403, idProduct=6014
[ 154.392207] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 154.392208] usb 2-1: Product: Digilent USB Device
[ 154.392209] usb 2-1: Manufacturer: Digilent
[ 154.392210] usb 2-1: SerialNumber: 210248650532
[ 154.439517] usbcore: registered new interface driver ftdi_sio
[ 154.439541] usbserial: USB Serial support registered for FTDI USB Serial Device
[ 154.439629] ftdi_sio 2-1:1.0: FTDI USB Serial Device converter detected
[ 154.439657] usb 2-1: Detected FT232H
[ 154.439659] usb 2-1: Number of endpoints 2
[ 154.439661] usb 2-1: Endpoint 1 MaxPacketSize 512
[ 154.439663] usb 2-1: Endpoint 2 MaxPacketSize 512
[ 154.439665] usb 2-1: Setting MaxPacketSize 512
[ 154.440018] usb 2-1: FTDI USB Serial Device converter now attached to ttyUSB0
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But when using impact, there is no cable that can be found.
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WARNING:iMPACT - Module windrvr6 is not loaded. Please reinstall the cable drivers. See Answer Record 22648.
PROGRESS_END - End Operation.
Elapsed time = 0 sec.
Enumerating cables. Please wait.
PROGRESS_START - Starting Operation.
If you are using the Platform Cable USB, please refer to the USB Cable Installation Guide (UG344) to install the libusb package.
Connecting to cable (Usb Port - USB21).
Checking cable driver.
Linux release = 3.10.0-123.20.1.el7.x86_64.
WARNING:iMPACT - Module windrvr6 is not loaded. Please reinstall the cable drivers. See Answer Record 22648.
PROGRESS_END - End Operation.
Elapsed time = 0 sec.
ERROR:iMPACT - This function requires that a target is opened first.
WARNING:iMPACT - The cable selected is not avaliable, please select a different one.
WARNING:iMPACT - The cable selected is not avaliable, please select a different one.
WARNING:iMPACT - The cable selected is not avaliable, please select a different one.
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libusb has already been installed
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libusb-0.1.4-3.el7.x86_64
libusbx-1.0.15-4.el7.x86_64
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What else steps I can try to connect zedboard on centos 7?