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Altera_Forum
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12 years ago

AvalonMM plus UniPhy DDR3 Controller (without SOPC or Qsys)

Hello! I read all forum topics twice and didn't find any answer. It whould be great if someone can help me! Quartus 11.1; StratixIVGX dev.board; At first I created ALTMEMPHY IP DDR3...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

One more!

If the Controller Settings enable reordering option is turned OFF:

https://www.alteraforum.com/forum/attachment.php?attachmentid=8773

Than read diagram is:

https://www.alteraforum.com/forum/attachment.php?attachmentid=8774

It is very interesting diagram, burst count is only 2, but answers after one read request are more than 2 :) How is that may be?

Than write diagram is as the same (look like if reordering option is turned ON):

https://www.alteraforum.com/forum/attachment.php?attachmentid=8775

After some bursts the waitrequest goes high forever.