How do I stop a simulation from within an S-function?

How do I stop a simulation from within an S-function?

For example, I am attempting to stop a running simulation from within my S-Function, and I do not want to add a stop block. Is there any way I can stop the simulation in the same way as pressing the stop toolbar button but from within my code?

Answer 1

[MathWorks Support Team]

There are several ways to stop a simulation from within an S-function:

1) For MATLAB file S-functions you can use the command:

  
set_param(bdroot, 'SimulationCommand', 'stop');

For Simulink 4.0 (R12) and above you can use the following on C-MEX S-functions:

1) You can do a 'mexCallMatlab' with the SET_PARAM command with the same input arguments mentioned above for MATLAB file S-functions.

2) You can use the macro ssSetStopRequested, which will allow you to stop a simulation from within your S-function (you will have to set the simulation flag in this macro to not zero). For more information on this function please see pg. 10-187 of the Writing S-function Guide. The online version of this Guide can be found at:

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