Cosimulation Wizard

R2026b

Generate a cosimulation block or System object from existing HDL files

Description

The Cosimulation Wizard app generates a cosimulation block, System object™, or MATLAB^® callback function for verifying your HDL design against a Simulink^® model or MATLAB script.

In addition, the wizard creates MATLAB scripts that can compile the HDL and start the HDL simulator.

Open the Cosimulation Wizard App

• Simulink Toolstrip: In the Apps tab, under Verification, Validation and Test, click the HDL Verifier icon to open the HDL Verifier tab. Then, select HDL Cosimulation in the Mode section, and click Import HDL Files.

• MATLAB command prompt: Enter cosimWizard.

Examples

Generate and Edit Parameter File

1. In the Simulation Options pane, specify a filename in the Parameter file field.

   

2. Click Generate. A new parameter file is created, with default parameter values.

3. Click Edit.

4. In the file that opens, uncomment the lines with the parameters you want to override, and then set their values. For example, set coeff1 to 0 and coeff2 to 18.

   

5. Save the file, and click Next.

Use Existing Parameter File

If you know the parameters in your design hierarchy and you have specific settings for the parameters you want to use, you can write your own parameter file.

1. In the Simulation Options pane, specify the filename in the Parameter file parameter.

2. You can optionally change parameter values. To do so click Edit, and set the parameters to the new values.

3. Click Next.

Related Examples

• Get Started with Simulink HDL Cosimulation
• Verify HDL Module with MATLAB Component Function Using Cosimulation Wizard
• Verify Raised Cosine Filter Design Using Simulink
• Get Started with Cosimulation Wizard for MATLAB System Object

Limitations

• When importing a VHDL design the data types REAL and INTEGER are not supported.

Version History

Introduced in R2012b

R2026b: Generate MATLAB function for VCS

Use the Cosimulation Wizard to generate a MATLAB function for cosimulation between MATLAB and the Synopsys^® VCS^® simulator.

To create a MATLAB function for the Synopsys VCS simulator, open the Cosimulation Wizard. In the Cosimulation Type step:

1. Set HDL Simulator to VCS.

2. Set HDL Simulation with to MATLAB.

R2026a: Use HDL parameters with VCS

Specify or edit a parameter file to set values for HDL parameters. Use the Parameter File parameter to specify a parameter file. Select Generate a file with default values, or select Edit to edit an existing file.

R2026a: Change to default output sign

When using the MATLAB System Object workflow, the default data type for output ports is Fixedpoint Unsigned. In previous releases, the default was Fixedpoint Signed.

R2024a: New parameter file option

Import a parameterized HDL design. Specify or edit a parameter file to set values for HDL parameters.