Stratix II GX Post-Fit Timing Simulation Design Example with ModelSim-Altera (Verilog HDL)

This Verilog HDL design example demonstrates how to perform gate-level timing simulations of your design implemented in Altera^® Stratix^® II GX devices with the Mentor Graphics^® ModelSim^®-Altera simulator.

The design is created in Verilog HDL and consists of a top-level module (multiplier block), an altpll megafunction, an lpm_mult megafunction, an altsynram megafunction, an alt2xgxb megafunction and a testbench. The results of the multiplier are stored in the RAM, and then later sent out through the GX transceiver and looped back to its own receiver.

Note: This example was developed using Quartus^® II 7.1 SP1 design software running on a Windows XP SP2 machine and Mentor Graphics ModelSim-Altera 6.1g version running on the same host.

Using This Design Example

Unarchive the attached file to your desired location.
Invoke the Quartus II software and load the alt2gxb_example.qpf project.
On the Assignments menu, click EDA Tool Settings to open the Settings dialog box and then click Simulation. Verify that ModelSim-Altera is selected in the Tool name field.
On the Quartus II software toolbar, click compile. After compilation, the Quartus II software generates a post-fit netlist named alt2gxb_example.vo (for use with the ModelSim-Altera simulator tool) in <project_dir>/simulation/modelsim. The SDF Output File (alt2gxb_example .sdo), for annotating the delays in the gate-level timing simulation file, is also generated at the same location.
To run ModelSim-Altera software, invoke the ModelSim-Altera software.
- Change the directory name to <project_dir>/simulation/modelsim.
- To run the <project_dir>/simulation/modelsim/multiplier_run_msim_gate_verilog.do script, type do –alt2gxb_example_run_msim_gate_verilog.do in the ModelSim-Altera simulator console window.

Design Examples Disclaimer

These design examples may only be used within Altera Corporation devices and remain the property of Altera. They are being provided on an “as-is” basis and as an accommodation; therefore, all warranties, representations, or guarantees of any kind (whether express, implied, or statutory) including, without limitation, warranties of merchantability, non-infringement, or fitness for a particular purpose, are specifically disclaimed. Altera expressly does not recommend, suggest, or require that these examples be used in combination with any other product not provided by Altera.