Stratix II GX Post-Fit Timing Simulation Design Example with ModelSim SE/PE (VHDL)
This VHDL design example shows how to perform gate-level timing simulations of your design implemented in Altera® Stratix® II GX devices with the Mentor Graphics® ModelSim® SE/PE simulator.
The design is created in VHDL 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 SE 6.1g version running on the same host.
Download the alt2gxb_modelsim_SE_vhdl.qar design example.
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 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.vho (for use with the ModelSim SE/PE 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.
- Tor run ModelSim SE/PE software, Invoke the ModelSim SE/PE software.
- Change the directory name to <project_dir>/simulation/modelsim.
- To run the <project_dir>/simulation/modelsim/multiplier_run_msim_gate_vhdl.do script, type do –alt2gxb_example_run_msim_gate_vhdl.do in the ModelSim SE/PE simulator console window.
For more information on using the Mentor Graphics ModelSim simulator tool, refer to Mentor Graphics ModelSim software documentation and the Mentor Graphics ModelSim Support chapter in volume 3 of the Quartus II Development Software Handbook.
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