General Description: When performing functional simulation, you usually see the design hierarchy preserved in the simulator (e.g. when you select Signal -> Add Signals you see the design hierarchy in the far right panel).
When the simulator needs to perform an "XBLOX Update", the design is flattened. The Add Signals window shows only "Root" in the far right panel.
Is there a way to get the hierarchy back for functional simulation, or to prevent the design from getting flattened?
If the design needs to be flattened for functional simulation, there is no way to restore the hierarchy.
In order to prevent the design from being flattened, you must remove all XBLOX components from the design, replacing them with standard library components.
If your design contains VHDL macros, perform the following steps for each macro:
1. Open the .VHD file in the HDL Editor. 2. Select Synthesis -> Options. Uncheck the "X-BLOX" box. 3. Select Project -> Update Macro.