reuse C code in simulink

Hello every one,

is is possible that i call a c program from a stateflow chart, then I copy this chart, still in this same model, and execute both with out any conflict?

for example a C program like this

int var;              // var is global
int myfunction(int n)
{
  var = var + n;
  return var;
}

i mean, treat them like two different entities and won't mess up with global variable.

[Ruoshi Zhang]

btw, also without rename the function in source code, I've got a big program :)

Answer 1

[Jason Moore]

Yes, you can create s functions of your legacy C code that can be used in your simulink model. To do this the easiest way is to use the legacy code tool. This tool will allow you to create an s function compile it and create a block that can be used in your model. Here is the link to the documentation.

Legacy Code Tool

[Ruoshi Zhang]

Hello,

I observe that if I use just stateflow block matlab also create s function, do you think they are same?

Answer 2

[TAB]

Also you can integrate your C code directly in Stateflow chart for Simulation.

Check "Call Custom C Code Functions" on this page.