1 Reply Latest reply on Nov 12, 2017 6:03 PM by ndma

    Is it possible to fix USB FullSpeed in CYUSB2014-BZXC?

    arai-n_1540581

      Q1) Is it possible to fix USB FullSpeed in CYUSB2014-BZXC?If possible, please tell me how to fix it.

      Q2) Regarding Standard DeviceDescripter below, is it ok tothink that  "Offset7:bMaxPacketSize0" can be set 8, 16, 32 , and 64.

       

      Best Regards

      Arai

        • 1. Re: Is it possible to fix USB FullSpeed in CYUSB2014-BZXC?
          ndma

          Hi,

           

          Please find the answers to your question as follows:

           

          Q1) Yes, it is possible.

          Instruction:

          Call the API "CyU3PUsbForceFullSpeed ( CyTrue);" before the CyU3PConnectState (CyTrue, CyFalse); API

           

          (The first API will force the device into full speed. The second API will enable USB 2.0 connection. If the first API is not called, the it will be a high speed USB 2.0 connection instead of a full speed USB 2.0 connection)

           

          Q2) No, only 64 is allowed. Other values are not allowed by most OS.

           

          Hope this help!

           

          Thanks,

          Nada