3 Replies Latest reply on Aug 4, 2019 8:21 PM by YiZ_31

    cy4531 connect devices error

    rttt_3611331

      I try to use cy4531 to connect device by typec port, and got error.

       

      0 HID devices found.

      1 USB-Serial Bridge devices found.

      Flashing device is UFP, initiating DR_SWAP

      DR Swap Successful

      PD contract established.

      Error: VDM response read failed on PORT:0

       

       

      Device Discovery completed.

       

      Any reasons why this problem happened? thanks.

        • 1. Re: cy4531 connect devices error
          YiZ_31

          Hi,

           

          I guess you are trying to program the CCG3 device on CY4531. You should follow the operation guide in the CY4531 kit guide:

           

          Ensure that the voltage selection jumper (J3) is set to 5 V (pins 2 and 3 of jumper J3 on the CCG3 daughter card are

          shorted). Also, ensure that the I/O supply selection jumper (J4) is set to VDDD of the CCG3 device (pins 2 and 3 of

          jumper J4 on the CCG3 daughter card are shorted).

           

          Connect the USB Type-A to Mini-B cable from host PC to CCG3 daughter card

           

          Regards,

          Eddie

          • 2. Re: cy4531 connect devices error
            rttt_3611331

            Hello,

                 Config is correct. Any clues about that error?  "Error: VDM response read failed on PORT:0"

             

            thanks.

            h

            • 3. Re: cy4531 connect devices error
              YiZ_31

              Hi,

               

              This Error usually will show up because the device connected did not enable the corresponding macro in the code which casue the VDM communication failed. I suggest you program the chip with the original hex file and try again.


              Regards,Eddie

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