## Using the Altera Schematic Express (sch_exprss) Utility

Once you have created a Design Architect schematic, you can use the Altera Schematic Express utility (sch_exprss) to generate a Design Viewpoint Editor (DVE) viewpoint and an EDIF netlist file from the schematic; process the EDIF Input File (.edf) with the MAX+PLUS® II software to generate an EDIF Output File (.edo); process the EDIF Output File with ENRead and DVE software; and generate an altera_asim viewpoint for simulation. The sch_exprss utility creates all necessary subdirectories and copies all of the files to the correct locations.

To use the sch_exprss utility, follow these steps:

1. Be sure to set up the working environment correctly, as described in Setting Up the MAX+PLUS II/Mentor Graphics/Exemplar Logic Working Environment.

2. Create a Design Architect schematic that follows the guidelines described in Creating Design Architect Schematics for Use with MAX+PLUS II Software.

3. Select your project's folder, press Button 3, and choose Open sch_exprss from the Mentor Graphics Navigator window to start the Altera Schematic Express tool.

4. Specify settings for the Input Schematic, Altera Device Family, MAX+PLUS II Synthesis Style, Process Direction, and Verbose options in the sch_exprss dialog box and choose OK to generate the altera_asim file for simulation with QuickSim II software.

5. If necessary, correct any errors in the Design Architect schematic design file and recompile the project. The sch_exprss utility generates the altera_asim viewpoint in the appropriate directory.

6. Simulate your project, as described in Performing a Timing Simulation with DVE & QuickSim II Software.

| Go to Performing a Timing Analysis with QuickPath Software in these MAX+PLUS II ACCESSSM Key topics for related information.

Last Updated: August 28, 2000 for MAX+PLUS II version 10.0 |
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