MATLAB: Do I receive an error using Stateflow 5.0 (R13) to generate a function-call for a function-call subsystem in Simulink 5.0 (R13)

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Why do I receive an error using Stateflow 5.0 (R13) to generate a function-call for a function-call subsystem in Simulink 5.0 (R13)?
I have a Stateflow diagram that generates function-calls to a function-call subsystem in my Simulink model. When I update the diagram or try to simulate the model, I receive the following error:
 Invalid "function-call" connection
 Stateflow Simulink Interface Error: Function-call trigger port of 'mymodel/Subsystem' must be driven by port 0 of S-function block 'mymodel/Chart/ SFunction '

Best Answer

This error can occur if your function-calls from Stateflow are defined as data rather than events. To correct this, you should create new events using the Stateflow Explorer. The scope property must be set as "Output to Simulink" and the trigger property must be set to "Function Call".
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