Port0 works normally, and the waItrequest signal of Port1 is always high since power-on.Avalon of DDR3 has timing alarms.Does it have anything to do with this? Or is it for other reasons?
May I know which device that you're used in your design?
Which Quartus version and simulator tool that you're used?
What do you mean by the timing alarms? Is it a timing warning?
If yes, then it will be great to share the timing report.