I'm using HyperLynx - BoardSim VX2.4. I'm currently doing post-route analysis on a particularly sensitive power form (core voltage for an SoC). I successfully ran a DC Drop simulation to get my drop from the output of my DC/DC converter to the balls of my SoC's BGA. Now I'm looking to get the drop from the ground balls of the SoC's BGA to the ground balls of my DC/DC converter.
How exactly do I do this? I'm having a hard time figuring it out from the documentation and online.