Global clock, virtual pins & incremental compilation

Yes, I'm thinking that this Bottom up flow should be very nice, but it's becoming a pain to learn to use it.

Moreover I've understood that it's better that I do the assignment by hand instead of using the scripts, but that's not so good imo because you've to be sure to give all the assignement on the sub design if you need to change something in the top in the project phase, whereas I thought that it was a simply matter of regenerate the script and give them to the sub-partition designer.

I hope that all this pain shall give me the result I would like to have (make 3 people work indipendently), preserve some part of the design if some other part will be changed and of course reduce the compilation time that is increasing a lot.

Another thing that I think It'll be a pain is the use of the signal tap, also on the top you've a lot of limitation on its use (or better you've to use it in a different way and I hope the results still be understandable as untill now, because that shall be a real problem if we've to not use Signal Tap as in the past).

Thx Brad for all the suggestions, ofc I'll fill the mysupport service request for this problem.