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rMa1's avatar
rMa1
Icon for New Contributor rankNew Contributor
5 years ago
Solved

How to set descriptor length dynamically in PCIe Hard IP (AVMM-DMA interface)

In my system, data stream has different length in the three mode, for example, we need descriptor length=128 in mode1, and descriptor length=32 in mode2, descriptor length=100 in mode3, mode set by H...
  • KhaiChein_Y_Intel's avatar
    KhaiChein_Y_Intel
    5 years ago

    Hi,


    We do not receive any response from you to the previous question/reply/answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you


    Best regards,

    KhaiY


KhaiChein_Y_Intel's avatar
KhaiChein_Y_Intel
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi Vicky,


Can you check if (1) the previous programmed DMA descriptor are completed, (2) no pending transaction and (3) the last pointer register has been written with 0 before setting a new value for RD_TABLE_SIZE?


Thanks

Best regards,

KhaiY