Hey Martin,
You can indeed pause your simulation and establish an interaction between Simulink and MATLAB. Consider the following code snippet for pausing the Simulation and extracting the data from desired blocks:
model.set_param('model_name', 'SimulationCommand', 'pause');
output_data = get_param('model_name/BlockName', 'RuntimeObject').OutputPort(1).Data;
Once you have the required data, you may perform necessary computations on it in MATLAB. Finally, you may update the values in the Simulink model and continue with the simulation.
set_param('model_name/BlockName', 'Value', new_input_data);
set_param('model_name', 'SimulationCommand', 'continue');
In order to establish a communication between MATLAB and ModelSim, you may use MATLAB's external interfaces to communicate with ModelSim. For running the simulation for only a single time step, use the following command:
sim("ModelName",paramstruct);
% where paramstruct is a structure with field names that match each parameter name and field values that specify the value to use for each parameter.
You can learn more about the programmatic interactions between MATLAB and Simulink by referring to the following documentation: https://www.mathworks.com/help/simulink/ug/using-the-sim-command.html
I hope this helps!
