8 Replies Latest reply on Sep 10, 2020 10:58 PM by YashwantK_46

    FX3: data transmission error via GPIF II interface

    WeJi_4707326

      Hi,

       

      I prepared two FX3 development kits and wanted to test data transmission througn GPIF II interface. Refer to the following page:

      https://www.cypress.com/documentation/code-examples/usb-superspeed-code-examples

      I connected two FX3 development kits back to back over the GPIF II interface. Then downloaded firmware images without modification into RAM of the two FX3 devices.

       

      I tried the following cases in USB Control Center:

      1. Send data from Bulk out endpoint of slave board and receive data from Bulk in endpoint of master board

      2. Send data from Bulk out endpoint of master board and receive data from Bulk in endpoint of slave board

       

      For case 2, it seems OK. I can receive the same data as I sent from master board.

      But For case 1, the data I received was different from I sent from slave board. The received data was same no matter what data I sent.