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. Image
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
  1.  Add symbol instances to your schematic.
    You can add the following types of symbols:
    •  Xilinx® unified library symbols. Image
    •  Symbols you create using the Symbol Wizard. Image
    •  Symbols you create using lower-level modules, such as HDL files. Image
  2.  Add wires to connect your symbols. Image
  3.  Create buses. Image
  4.  Add I/O markers. Image
    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.
  5.  Check your schematic for errors. Image
  6.  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) Image
  •  Synthesis Image
  •  View your schematic as a read-only structural Hardware Description Language (HDL) file (optional) Image
  •  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.
See Also

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