5 Replies Latest reply on Oct 5, 2020 7:10 AM by SananyaM_56

    cy7c65642-DD devices can't be recognize




      SCH FYI


      The 3rd DD port connect usb audio IC (ALC4021 Realtek)


      When I connect my borad to PC,  all devices can be recognize , including ALC4021


      when I download fireware to ALC4021,fireware can be download to flash. when the fireware download finish,the ALC4021 will reset to new code,


      but,PC can't recognize ALC4021,and PC pop the window


      I reconnect my borad to PC,all devices can be recognize , including ALC4021


      As a comparison


      last board version , I ues USB5744(Microchip) as HUB IC, the other SCH is the same with this version


      the last board have no this question.