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leonqin_2025's avatar
leonqin_2025
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10 months ago

Why AXI MCDMA IP output axi-stream with Spares TKeep and borken TData?

as described in datasheet,"The sparse tkeep is not allowed." but,I got the wave by signaltap: why?
RongY_altera's avatar
RongY_altera
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9 months ago

Since there are several modes in MCDMA IP, could you please send me your mcdma.ip and let me know the Quartus version you're using?

I'll check this from my end.

Thanks,

Rong

leonqin_2025's avatar
leonqin_2025
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3 months ago

just the mcdma ip file

  • RongY_altera's avatar
    RongY_altera
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    2 months ago

    Hi,

    According to the spec, TKeep should be all ones for all non-TLAST cycles. The observed sparse TKeep before TLast violates this requirement.

    Please re-check your test since this behavior could be caused by earlier incomplete transactions or test setup issues, and should be further investigated.

     

    Regards,

    Rong