3 Replies Latest reply on Dec 9, 2012 9:02 AM by rama.sai.krishna.vakkantula

    CY7C68013A packet loss regularly

    gu.meng

      Recently, I have met a packet loss problem with the bulk asynchronous transfer from fpga to pc(16Mbps).

         

      conf: bulk IN ; ept 6;  maxpacketsize = 512; slave fifo mode.

         

              with the data goes form 0x0000 to 0xffff as a cycle, I set the  asynchronous data get length once as 512 * 256. Data loss when the data number reach  0x8800

         

                                                            0x1088800

         

                                                            0x2088800

         

                                                            0x4088800 

         

                                                            0x8088800

         

                                                            0x9800000

         

      attached are the firmware and my  asynchronous transfer code.