Simulate

The IP Manager automatically generates a testbench and top-level file for simulation based on the settings you made in the wizard, including the top-level file generation, I/O connection to the testbench, simulation models, and stimulus such as clock and reset. The testbench bypasses the SPI flash data retrieval step to speed up simulation.

Note: If you manually assign addresses to the peripherals, the default simulation may not function correctly.

Open a terminal.
Change to the Testbench directory for your SoC.
Set up the Efinity environment:
- Linux: source /<path to Efinity>/bin/setup.sh
- Windows: c:\<path to Efinity>\bin\setup.bat
Run the simulation using the default application with the command Python3 run.py.
Note: The default application requires UART 0 to be turned on.
Note: If you want to include the SPI flash retrieval step (requires SPI 0 to be turned on), run the simulation with the command:
```
Python3 run.py -f
```

A successful simulation returns the following messages

#    0 -----------------------------------------
#    0 [EFX_INFO]: Start executing helloWorld TEST
#    0 -----------------------------------------
#    51315 -----------------------------------------
#    51315 [EFX_INFO]: Receiving uart data from soc
#    51315 -----------------------------------------
#    2121065 -----------------------------------------
#    2121065 [EFX_INFO]: TEST PASSED 
#    2121065 [EFX_INFO]: Hello World from Efinix!
#    2121065 -----------------------------------------

To simulate with a different application instead of the default, use the command:

Python3 run.py -b <path to application>/app.bin

When you use a non-default application, the testbench bypasses the default driver and monitor sequences and displays warning messages.

#  0 -----------------------------------------
#  0 [EFX_INFO]: Executing custom binary file...
#  0 [EFX_WARN]: Skipped testbench default driver and monitor sequences.
#  0 [EFX_INFO]: Running simulation...

#  0 -----------------------------------------

You need to develop your own sequence for your application.

The default simulator is Modelsim or Questasim. To run the simulation with Aldec Riviera simulator, look for ALDEC_PATH on the top part of run.py, uncomment the line, and set the path to your Aldec Riviera simulator installation path.

#ALDEC_PATH=Path('PUT', 'YOUR', 'OWN', 'ALDEC', 'PATH')

Then run the simulation command with “tool” argument:

Python3 run.py --tool aldec