2 Replies Latest reply on Jul 25, 2015 5:04 PM by userc_41134

    Unknown USB Device (Device Descriptor Request Failed)



      I am using CY8CKit-001 PSOC Development Board and PSoC Creator 2.2 version. I intend to use the UART interface. I am using Windows 8.1 Enterprise N 64-bit OS and have downloaded and installed the following two drivers from Cypress website.


      a. CDC_Driver_Windows_Win81_x64   b. Vendor_Class_Driver_Win81_x64


      However, as I plug the Serial to USB Cable into PC, I get the following entry in Device Manager


      Unknown USB Device (Device Descriptor Request Failed)


      and alos a pop up message "USB device not recognized"


      Please let me know the concrete steps to follow to resolve this issue.