Honored Contributor
Honored ContributorIf you have build-sensitive issues signal tap doesn't help much - since adding the 'tap' points requires a rebuild (unless you had the forsight to add the tap points in exactly the right places when the design was originally done).
We had some issues with M9K blocks not returning 'OLD_DATA', but failed to trace the error occuring so can't be 100% certain we've actually fixed it (although we finally found out why it was failing - the OLD_DATA request was being silently ignored (well it might have been hidden the the 1000s of warning message) because the SOPC builder passing in two clocks and one of them had an associated 'clock enable').
