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USB-TO-GPIO: USB-TO-GPIO connect 『Unknown Device』

gavin wang
Prodigy 80 points

Part Number: USB-TO-GPIO

Hello!

I connected the USB-TO-GPIO to my computer and an "Unknown Device" issue will appear.
And the green LED will not light up.

  • 0
    TI__Mastermind 18370 points

    Connect the Adapter first to your PC without connecting the ribbon cable to the target.

    If that does not help disconnect and use a different USB connection on your PC.

    Only after the green LED is on, then connect to target.

    Regards,

  • 0 in reply to Yitzhak Bolurian
    Prodigy 80 points

    Hi！Bolurian：

    No device is currently connected, only USB is connected!

    The situation is still the same, change the USB cable, change the USB slot, and change the computer.

    And I have two USB-TO-GPIO  that are all the same situation .

    Thank you!

  • 0 in reply to gavin wang
    TI__Mastermind 18370 points

    Please disconnect the interface from USB,  reset your PC and try again.

  • 0 in reply to Yitzhak Bolurian
    Prodigy 80 points

    Hi！Bolurian：

    well!
    In fact, I found the real problem!This is USB-TO-GPIO EEPROM (24LC64)
    The program inside has been deleted!I found a lot of similar situations using Google search and TI E2E search.
    Now I have two solutions:
    method 1.
    Using an EEPROM ISP, first use the normal USB-TO-GPIO adapter
    Back up EEPROM data before using EEPROM ISP Write data to the erased EEPROM to restore USB-TO-GPIO
    normal.
    Method 2.
    Locate the TUSB3210 driver and download it (www.ti.com/.../sllc160)
    Because your company's driver does not have a digital certificate, it must do so.
    First disable the digital certificate (press "F8" when Windows starts).
    Make the TUSB3210 driver work properly,Then use the USB-TO-GPIO firmware loader
    (www.ti.com/.../sluc199)Update firmware to restore USB-TO-GPIO normal.

    Thank you!