1 Reply Latest reply on Mar 15, 2017 3:55 AM by anii

    CYUSB3304 Super speed doesn't recognize ( impedence or something else?)

    m.collu_1636636

      Hi

         

      I have a big problem with CYUSB3304 super speed signal on my board. I checked all impedences  with a software PCB design and the that's all right, but it's working only usb 2.0 and create a simple  " generic hub " on Windows 7. The revision chip is " E" without external Eeprom, and all settings into internal ROM are corrects, and i tried to change the  physical chip but doesn't work again.

         

      Have you any information or other cases about this problem?

         

      Is it  possible some HW problem? 

         

      I routed the SS signal into multilayer PCB  with a correct stek up. Can the internal layer create a link problem?

         

       

         

      Thanks in advance