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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?
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