MATLAB: Need help on getting output from rapid accelerator simulation

Question

Hi,

I'm having trouble getting the output from the rapid accelerator simulation. I've dug some of the Q&A before but never got them to work.

The situation is:

I have a .m file (called run.m) which calls multiple sim() in a loop. The simulink model 'adc' includes inputs FromWorkspace, output port named "digout" and 1 embedded MATLAB function. I checked the "save to workspace" for output "digout" on simulink 'adc' model.

The way I run simulation is

1. Call run.m, which initialized Cpool, Cp1,Cp0 on the workspace.

   for runid=1:10
      Cp1 = Cpool(1,runid)
      Cp0 = Cpool(2,runid)
      sim('adc')
      result(runid) = digout.signals.values
   end

2. Now I tried to build the rapid accelerator model to speed up the simulation (Following Q&A 35991) to create the model once and simulates multiple times.

   rtp = Simulink.BlockDiagram.buildRapidAcceleratorTarget('adc');
   for runid=1:10
     new_rtp = Simulink.BlockDiagram.modifyTunableParameters(rtp, ...
                                                  'Cp0',Cpool(1,runid),....);
      simout = sim('adc','SimulationMode','rapid', ... 
                   'RapidAcceleratorUpToDateCheck','off', ...
                   'RapidAcceleratorParameterSets', new_rtp, 'SaveOutput', 'on','OutputSaveName','digout');
      result(runid) = simout.get('digout')
   end

I tried assigning result(runid) = digout directly but it says the variable cannot be found. Then I try save the output to simout.

However, I'm still getting errors

??? No appropriate method, property, or field get for class Simulink.SimulationOutput.
But it seems to have something when I use
simout.find
ans = 
    'digout'

The question is:

1. Why can't I get the output "digout" successfully when using the rapid build as I did in normal?

2. What should I do to get it work?

Suggestions and answers are much appreciated.

Nick

Answer 1

My speculation would be that your version of Simulink predates the Simulink.SimulationOutput.get method.

The documentation I am glancing at implies you might be able to use

result(runid) = simout.find('digout');