2 Replies Latest reply on Jun 22, 2013 9:27 PM by zhu.bing

    confusing data lose in many_to_one DMA channel

    zhu.bing

      Dear Sir

         

      I get a problem of my FX3 superspeed design, and it has  confused me for two weeks, so please help me.

         

      In my design I use many_to_one DMA channel which has 2 valid socket and every socket has 4 valid buffers,my problem is everytime I start a new transfer I always lose  random data after 8buffers have transfered,beside this my data received is continuous.
      I am sure that FPGA always sends data  a little later than PC receives data.