Run External Mode simulation from the MATLAB Command Window:
To run these commands, you must have a Simulink model open and a target application running.
1. Set the model simulation mode to external mode.
>> set_param(gcs,'SimulationMode','external');
2. Connect Simulink to the target application.
>> set_param(gcs,'SimulationCommand','connect')
This command is equivalent to pressing the "Connect to target" button.
3. Run generated model code.
>> set_param(gcs,'SimulationCommand','start');
4. To tune a parameter, change its workspace variable value through a line command. For example, if a block parameter value is specified as a Simulink.Parameter object, assign the new value to the Value property.
>> myParamObj.Value = 5.23;
To download the new value to the target application, update the model.
>> set_param(gcs,'SimulationCommand','update');
5. Stop the target application and disconnect Simulink from the target environment.
>> set_param(gcs,'SimulationCommand','stop');
6. To disconnect Simulink from the target application without stopping the execution of generated code, use this command:
>> set_param(gcs,'SimulationCommand','disconnect');
.
Run External Mode simulation from a MATLAB script:
The set_param commands that use the 'SimulationCommand' argument are asynchronous. If you run the commands successively from a script, each command starts without waiting for the previous command to complete. To check that each command is complete, in the script, use the get_param command with the 'SimulationStatus' argument.
For example, for steps 1 to 3, specify these commands in the script:
set_param(gcs,'SimulationMode','external');
set_param(gcs,'SimulationCommand','connect');
isExternalSimulationActive = false;
while ~isExternalSimulationActive
simStatus = get_param(gcs, 'SimulationStatus');
isExternalSimulationActive = strcmp(simStatus, 'external');
end
set_param(gcs,'SimulationCommand','start');
For more information, see the Simulink and Simulink Coder documentation:
