Schematic and Symbol Editors
Creating a Top-Level Schematic
Using
a schematic as your top-level design allows you to have a visual representation
of your design. You can create a top-level schematic for design entry
as follows.
Before performing this procedure, you must first create
a project, selecting Schematic as your top-level
module type. 
The SCH file
name appears in the Hierarchy pane of the Design panel, and the file
opens in the Workspace.
To Create a Top-Level Schematic
- Add symbol instances to your schematic. You can add the following types of symbols:
- Xilinx® unified library symbols.
- Symbols you create using the Symbol Wizard.
- Symbols you create using lower-level modules, such as HDL files.
- Xilinx® unified library symbols.
- Add wires to connect your symbols.
- Create buses.
- Add I/O markers. Note See Adding I/O Markers to an Empty Schematic for details on how to add all the I/O Markers to your schematic at once.
- Check your schematic for errors.
- Fix any errors, and save your SCH file.
What to Expect
The schematic is saved in
your project.
What to Do Next
Perform any of the following
on your design:
- Behavioral simulation (optional)
- Synthesis
- View your schematic as a read-only structural Hardware Description Language (HDL) file (optional)
- Store the SCH file for documentation purposes
Note When performing behavioral simulation or design synthesis,
the program automatically translates your SCH file to a structural Hardware Description Language (HDL) file
for processing.