I can't seem to find a good guide or tutorial on the use of a bus in a hierarchical sub-sheet. Obviously a bus coming into the main sheet from a sub sheet would simplify the visual representation of the hierarchical pins in the bus. But I can't understand how to number them correctly, and how to apply the right label.
This was done on the S2Proto - Spartan II FPGALibre Board design to good effect. http://fpgalibre.sourceforge.net/ingles.html#tp30 Can anyone help explain how to use this approach to a novice? --CG
