[Qsys]: Timing violation on reset controller

Question

Hi all,

I've found an timing-violation issue related to recovery timing on my Qsys system which I'm not really know what happen.

Do you guys have any idea?

I attach the picture for reference, thanks!

altera_forum · Answer

Hello Grein,

we have the same problem together with Quartus 13.0SP1 and NiosII/s.

The following configuration did not show the recovery issue:

- Quartus 13.0 and NiosII/s

- Quartus 13.0SP1 and NiosII/e

We assume that the hardware divide feature in the NiosII Core causes the recovery issue.

Compared to NiosII/s, NiosII/e does not come with hardware divide.

Which Quartus version and NiosII Core do you use?

Regards,

Jens

altera_forum · Answer

I met the same problem. I think we can just ignore it.

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