I have a design in which there are few DRCs(eg:50) showing in ReRoute(ICC2 too) log file but calibre DRC count is showing 80.
Can anyone please explain why the DRC count is different and why we are using Calibre as a signoff tool when we have an icc2?
And also please explain about DRC Dec
alishetti07 asked: Can anyone please explain why the DRC count is different ...
Seems that calibre checks more design rules than icc2 does. You can't get a design in pre-production, if you can't show an error-free DRC with their compulsory golden DR checker with their own design rules. May be icc2 simply isn't able to check some complicated dependencies.
it is not that it does more per se, it is that it does better. you can have both false positives and false negatives from physical synthesis tools, which can be a mess to debug. Yet, whatever calibre returns as a drc, you believe it is one.