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UART on ZedBoard

Former Member

Hi all - first post :)

Please help if you can - I connected my Zedboard to my Windows 10 (64bit) PC for the first time today. The driver automatically installed the Digilent USB to Serial converter, which appears in the device manager. However, it installs no virtual COM port. I have tried uninstalling the driver found by Windows Update, disconnecting from my network, and installing the driver from Cypress (http://www.cypress.com/documentation/software-and-drivers/microsoft-certified-usb-uart-driver) which did not fix the problem. I also noticed that the chip on the board near the USB OTG port is an FTDI FT232, so I subsequently also installed that, but again, to no avail.

Could you please advise?

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  • 0

    I had the problem with the both avnet cypress driver and cypress official driver. Both updates only install the zedboard as usb-art adapter but the COM port does not appear under Ports (COM & LPT) in the device manager. The work around that I follow that works is by following the steps in:

    http://zedboard.org/content/uart-driver-does-not-work-new-pc

    However, once you're connected to the internet, the driver for the usb will update itself and the usb serial port will disappear again under the Ports (COM & LPT). The workaround for this step is just rollback the driver. The com would appear again.

    I have traced the problem for this update in Event Viewer and it points to:

    Driver Management concluded the process to install driver cypressusbandbus.inf_amd64_b9411dae2ee00e22cypressusbandbus.inf for Device Instance ID USBVID_04B4&PID_00080410A3D82426 with the following status: 0x0.

  • 0 in reply to Former Member

    This is the addendum to the error message I posted.

    Device USBVID_04B4&PID_00080410A3D82426 could not be migrated.

    Last Device Instance Id: USBVID_1532&PID_00405&DC4A972&0&14
    Class Guid: {36FC9E60-C465-11CF-8056-444553540000}
    Location Path: PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(14)
    Migration Rank: 0xF000FFFFFFFF0033
    Present: false
    Status: 0xC0000719

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