2 Replies Latest reply on Jul 19, 2018 12:30 PM by user_162149573

    AN65974 FX3 Loopback Example Fails after Rebuild

    user_162149573

      Hello!

       

      I use Cypress FX3 in my design, so I've tested it with Stream In and Out examples. It works good with precompiled .img files and with rebuilt files too.

      The loopback example works only when I load original .img file from Cypress. So, when I rebuilt that example project without any changes, it stops to work.

       

      It looks like data output is OK, but there is no input data. As I discovered with Chipscope, the FLAGC never goes high, so FPGA FSM stucks on waiting.

      Is it known problem? What should I change to fix it? I suppose, bug is somewhere in GPIF part.

       

      Many thanks for help!

      With regards,

      Maksim