I have two vias of a same net, which i want to be apart at least 6 mils (I want DRC to check it Online as well).
In the constaint manager for "Same Net Spacing", I check Thru Via To Thru Via to be 6 mil.
However, in the layout I still manage to place same net vias closer than 6 mils and DRC doesnt complain to that,
even when I Update DRC through the Tools menu.
Picture attached for clarity. Any ideas why is that happening?
One thing to check: in the Constraint Manager select the menu item Analyze > Analysis Modes.... On the left side of the window that pops up you should see Same Net Spacing Modes. Check the appropriate box and then re-run DRC Update in the main window.
Had to go to Constraints Manager-> Same Net Spacing->Options, and put TRUE for all layers. seems to be working now.