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Altera_Forum's avatar
Altera_Forum
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14 years ago

Using Avalon-ST with VIP

I'm developing various pieces of IP that act like video generators similar to the Test Pattern Generator block in the VIP suite. Right now I have a small test design to learn how to use the Avalon-ST...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

buggy indeed

it looks like the input data is only registered if the valid signal is asserted (good)

however, in the control packet assembler it looks like the state machine stores data and advances to the next state even if valid was not asserted (bad)

try changing all 3 instances of: 


if ctrl_pkt = '1' then

to 


if ctrl_pkt = '1' and was_valid = '1' then

i can probably test in hw tomorrow