Is possible to generate code with variable description instead its value?

Hi,

I have created model which call C code using MATLAB Function. I want to generate code within Embedded Coder.

Is possible generate code which will use name of variable ( my_var) instead of value (in my model block Constant)?

I mean:

doubleIt(my_var);

Thanks for any advice!

Vit

[Vit Valek]

SOLVED

In Matlab:

    my_var = mpt.Parameter;
    my_var.Value = 1.0;

For example set Storage class as Define (Custom) .