4 Replies Latest reply on Mar 27, 2019 6:44 PM by YangyangC_06

    CYUSB3304 + 2xCP2102N unkown usb device

    aldoc_3474881

      Hi. I'm using the CYUSB3304  hub and two CP2102N  usb to serial ICs. On a couple of the boards, i'm observing an error in Device manager "Unknown USB Device (Device descriptor request failed). Everything works properly, the two microcontrollers connected to the usb to serial devices are responding just fine.  I'm not sure if it's the HUB or the USB to serial giving the error... Any idea on what is happening?

       

      Alin