3 Replies Latest reply on Mar 16, 2018 2:16 AM by Madhu Lakshmipathy

    EZ-USB FX3 timeouts only when connected to USB3.1 host

    michaud_1659131

      Hi,

       

      Our device is using the EZ-USB FX3 slave FIFO.  It works fine when connected to a usb 3.0 host.

      With a USB3.1 host (on the same PC!), there are random timeouts during bulk in (USBD_STATUS_CANCELED / error code 997).

       

      Now, I know FX3 does not support 3.1, but I think the host should be backward compatible with 3.0.

       

      cyusb3.sys version is 1.2.3.1.4. Host application is using CyUSB.NET.

       

      Any suggestions?