Passing HDL parameters through models

Is it possible to pass HDL parameters through parent model to child model / subsystem?

I want to see inserting the parent parameter instead of inserting the value itself

Answer 1

[Kiran Kintali]

This may not yet be supported in HDL block dialogs. Please reach out to [e-mail] with your request and usecase models.

Can you consider hdlset_param commands with the paths to blocks?

[Roman Safronov]

Sorry for misleading, by HDL parameters, I mean generic / parameter constructs in the resulting HDL code.

Suppose we have a model with a nested masked subsystem. The model workspace contains two parameters PARAM_A, PARAM_B both of which are labeled as "Argument", which means they are masked and can be tuned. Subsystem's mask has two parameters too: S_PARAM_A and S_PARAM_B.

I am using model parameters as values for subsystem parameters: PARAM_A -> S_PARAM_A, PARAM_B -> S_PARAM_B.

After HDL generation I am guessing to get something like this:

module model
    (clk,
     rst,
     enb,
     in,
     out);
...
parameter [15:0] PARAM_A = 65535;
parameter [15:0] PARAM_B = 32;
...
nested_subsystem #(.S_PARAM_A(PARAM_A),
                   .S_PARAM_B(PARAM_B))
                   u_nested_subsystem (.clk(clk),
                                       .rst(rst),
                                       .enb(enb),
                                       .in(in),
                                       .out(out)
                                       );
...
endmodule

But instead I get something like this:

module model
    (clk,
     rst,
     enb,
     in,
     out);
...
parameter [15:0] PARAM_A = 65535;
parameter [15:0] PARAM_B = 32;
...
nested_subsystem #(.S_PARAM_A(65535), // inlined value instead PARAM_A
                   .S_PARAM_B(32)) // inlined value instead PARAM_B
                   u_nested_subsystem (.clk(clk),
                                       .rst(rst),
                                       .enb(enb),
                                       .in(in),
                                       .out(out)
                                       );
...
endmodule

As you can see, the model parameters were replaced with actual values.