How to pass a string dialog (masked) parameter to TLC file for a Level-2 MATLAB S-function?

I have a Level-2 MATLAB S-function block. I have created masked dialog parameters named param1. I want to pass it to the corresponding TLC file. However, I get the following error:

Unable to map dialog parameter 1 of S-function 'my_sfunction' in 'MyOwnModel' to a run-time parameter. This parameter is an unsupported variable class such as a character vector, string, structure, cell, or an unsupported data type

param is a string parameter. I want to pass it to a TLC file. How to do that?

Answer 1

[Andy Bartlett]

See this doc page.

https://www.mathworks.com/help/simulink/sfg/writertw.html

and in this example

edit('adapt_lms.m');

search for "WriteRTW"