SOPC Builder clock domain crossing

Hi,

Sorry to write back late. I made an incorrect assumpion about the versions in that I was thinking that (at at the time) it was likely you were using a beta/pre-release not-supporting clock-crossing; build 156 as you have downloaded should include these features.

I spoke with someone familiar with clock-crossing and we think we know the cause & fix to this. Can you please contact Altera applications via phone or mySupport and file a report on the problem, including the ".ptf" file for the system you're building? That way we can confirm the problem and, if possible, post a workaround here on the forum for others' benefit as well.