Using VHDL package files in Simulink

I would like to use a VHDL package file in my simulink model. I would like to read the variables from the VHDL package file and not import the constants to the workspace

Is there a way to use the constants established in the package file easily? Or should I just read them into the workspace?

I would like to avoid using the workspace if possible.

Answer 1

[Sanju]

Hi Cort,

If you want to use constants from a VHDL package file in Simulink without importing them into the workspace, you have a few options:

• Constant Blocks: You can manually create Constant blocks in your Simulink model and set their values to the constants defined in your VHDL package file. This way, you don't need to import the constants into the workspace.
• MATLAB Function Block: You can create a MATLAB Function block in your Simulink model and write MATLAB code to read the constants from the VHDL package file. This approach allows you to directly access the constants without importing them into the workspace.
• S-Function: If you have more complex requirements or need to interface with external files, you can create a custom S-Function in MATLAB/Simulink. This allows you to write C or C++ code to interface with VHDL or other external resources.

Each of these methods has its advantages and disadvantages, so you should choose the one that best fits your specific needs and constraints.

You can also refer to the following documentation links for more information,

Constant Blocks: https://www.mathworks.com/help/simulink/slref/constant.html

MATLAB Function Block: https://www.mathworks.com/help/simulink/ug/what-is-a-matlab-function-block.html

S-Function: https://www.mathworks.com/help/simulink/sfg/what-is-an-s-function.html

Hope this helps!