S-function parameters must be one or two dimensional nonsparse numeric or character arrays unless the S-function uses a TLC file and has an mdlRTW function

I am trying to build a Simulink function with system terget fule naming "grt.tlc". While performing the same I am getting the follwing error:

Invalid parameters for S-function 'BD_INSIGHT_HIL_19a/SM_Advisor/<vc> insight/pre-TX parallel gearbox control/downshift command/load fraction/S-Function'. For code generation, S-function parameters must be one or two dimensional nonsparse numeric or character arrays unless the S-function uses a TLC file and has an mdlRTW function.

Please help me to relove the issue.

[Kuldeep Kumar]

Hi,

I am also facing similar error. Have you solved your problem?

[一步]

Hi:

I am also facing similar error. Have you solved your problem?can you teach me this question?Thank you!

Answer 1

[Githin George]

As the error message is suggesting, your S-function may be dealing with types other than one or two dimensional nonsparse numeric or character arrays. To support such S-functions for code generation you would need use a custom TLC and specify the “modelRTW” function.

The “mdlRTW” function is generally responsible for providing customization to the generated file “model.rtw” and is invoked before code generation.

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

You can refer to the following section of the documentation to learn more about writing TLC files for your S-function.

https://www.mathworks.com/help/rtw/ug/s-functions-and-code-generation.html#f53121

Additionally, the following example might help in providing example code for "mdlRTW" function.

In MATLAB Command Window, type:

>> sfundemos

Click on ‘C-file S Functions’ -> ‘Miscellaneous’ -> ‘Multiple Ports’ to open the demo “ sfcndemo_sfun_multiport”. Inspect the M file mentioned in the example.