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Stimulate Root Inport by Using MATLAB Language

This example uses:

Open Script

This example shows how to stimulate root inports in a model by using the Stimulation object and related functions:

  • start

  • stop

  • getStatus

  • reloadData

  • pause

Open Model and Map Inport to Wave Data

Open model slrt_ex_osc_inport. Save the model to a working folder. Map the inport to use square wave data. For inport In1, interpolated is off.

model = ('slrt_ex_osc_inport');
open_system(model);
load(fullfile(matlabroot,'toolbox','slrealtime','examples','slrt_ex_inport_square.mat'));
waveform = square;
set_param(model,'ExternalInput','waveform');
set_param(model,'LoadExternalInput','on');
set_param(model,'StopTime','Inf');

Build Model and Download Real-Time Application

Build, download, and execute the real-time application.

evalc('slbuild(model)');
tg = slrealtime('TargetPC1');
load(tg,model);

Stimulate Root Inport Data

Start root inport stimulation of inports 1. Open Scope block and observe results.

start(tg.Stimulation,[1]);
start(tg);

Pause root inport stimulation of inport 1.

pause(tg.Stimulation,[1]);

Stop and start the stimulation of inport 1.

stop(tg.Stimulation,[1]);
start(tg.Stimulation,[1]);

Check the status of stimulation of the inports.

getStatus(tg.Stimulation,'all');

Create a time-series object to load data to an inport.

sampleTime = 0.1;
endTime = 10;
numberOfSamples = endTime * 1/sampleTime + 1;
timeVector = (0:numberOfSamples) * sampleTime;
u = timeseries(timeVector*10,timeVector);

Object u is created for 10 seconds. Load it to the inport 1. Stimulation of an inport should be stopped before loading data.

stop(tg.Stimulation,[1]);
reloadData(tg.Stimulation,[1],u);

Stop real-time application and close all.

stop(tg);
bdclose('all');