Add option for having the last signal

Open ameetgohil opened this issue 6 years ago • 3 comments

Feb 27 '19 06:02 ameetgohil

What is "the last signal"?

Mar 04 '19 06:03 drom

similar to the last signal in axi-stream transactions that triggers the end of stream. I have been just concatenating the signal with data but it's really cumbersome.

Mar 17 '19 07:03 ameetgohil

How about "credit-based" mechanism. A counter at the receiving end that:

indicates the number of transactions in flight.
incremented by a transmitter (+1 or +N) with the expected number of resulted data words.
decremented by every arrived data word (-1)

We can build this mechanism aside of major datapath or controller by just monitoring req/ack signals. It should work fine for simple cases when the number of results doesn't depend on data itself. Will that work for your case?

Mar 17 '19 18:03 drom