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Honored Contributor[CDC] How can I do Cross Domain Checks in Quartus?
Hi All,
How can I perform Cross Domain Checks in Quartus? What's the flow? Is there tutorial for that? Thank you!Forum Discussion
7 Replies
Altera_ForumWhat sort of checks are you expecting to perform? Domain crossing is something you need to handle in your design, not in your checking.
Cheers, Alex- Altera_Forum
"Domain crossing is something you need to handle in your design" - This is exactly I want to check ...
For example, I want to check a precense of synchronizers between clock domains... I know Xilinx support CDC checks. Do the checks supported byy Altera as well? - Altera_Forum
There's a new CDC viewer in the timing analyzer (aka TimeQuest). Maybe that's what you want/need.
- Altera_Forum
The Quartus II Design Assistant do also some checking between asynchronous clock domains.
You can enable them in Assignments/Settings ... - Altera_Forum
In the Design Assistant, there is an option 'Run Design Assistant during compilation'. Should I enable it? If it's not enabled, will the listed checked be not performed at all?
- Altera_Forum
Design Assistant can either run automatically during compilation if that option is turned on or manually after compilation from the Processing menu.
- Altera_Forum
what's flow it's better - letting the Design Assistant run automatically during compilation or run it when all the flow was finished?
Does it have a big impact on the compilation time? In the project, which I'm working on, all the options are checked/selected on (including the automatically run)... Is it possible to know how time was spent on that (besides 'try&see')? Does Quartus report how long time it spend on each stage?
