MATLAB: S Function Builder – To implement existing C code

s-functionsimulink

Hello,

I am working on Simulink, S-Function Builder Block. I have a query about that, to explain in brief.

I have a working C code, I have to implement this C code somehow in S-Function Builder block so that the code uses the real-time values from inputs and gives the necessary output according to the action of C code.

My question is where exactly to implement this C code ??

I hope you understand my question, please give me the possible solution.

Best Answer

If you're using 18b, consider using the C Caller block:

https://www.mathworks.com/help/releases/R2018b/simulink/ug/integrate-ccode-ccaller.html

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MATLAB: Define several functions in s-function builder

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

MATLAB: How to create a sawtooth signal inside an S-function

A simple demonstration:

Drag a S-function builder block in the model.
Configure S-function having only 1 output (y[0]). No input, No discrete state, No continuous state.
In the output function write code given below
Build the S-function and run the model.

y0[0] = y0[0]+1;
if(y0[0]>UPPER_LIMIT)
{
    y0[0] = 0;
}

Best Answer

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MATLAB: Define several functions in s-function builder

MATLAB: How to create a sawtooth signal inside an S-function

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