To add an underlying block to a configurable Subsystem, do the following:
- Open and unlock the library for the Subsystem.
- Drag a block into the library.
- Double-click the template, and select the checkbox next to the added
block.Figure 1. Add a Block
- Press OK, and then save the library.
- Compile the design by typing Ctrl-D.
- If necessary, update the choice for each instance of the configurable Subsystem.