MATLAB: Define several functions in s-function builder

s-functions-function buildersimulink

How can i define and use several functions within an s-function builder block?
I use the s-function builder to include arduino Code. But these functions use sub functions. If i define then in the ouput Tab ob the s-function builder, those functions are finally defined within a function of the s-function which leads to an error. My solution so far is to build that s-function and manually edit (and rename to cpp) the c-file afterwards before building the model.
Is there another way to define those additional functions within the s-function builder?

Best Answer

Maybe i can answer the question myself : Move those functions to a seperate h-file and include it in the s-function builder?