MATLAB: How to read any initialization data from mat file in standalone simulink aplication

code generationinitializationread datasimulation stop timesimulink coder

Hi,

I have a model with some parameters (gain, amplitude, simulation stop time …), which are initialized by InitFcn callback. In this callback I read parameters from mat file. Simulink simulation is OK. But after code generation to exe file (with rsim.tlc target file) parameters are not initialized with my mat file. How can I solve my problem? Thanks,

Mirec

Best Answer

The simulation stop time can be selected by using the '-tf' flag when calling the rsim exe. For example :

>>!myRSimModel.exe -tf 100.0

You should be able to set parameter values of the model using a MAT file with the '-p' flag. Check out the sections "Create a MAT-File That Includes a Model Parameter Structure" and "Change Block Parameters for an RSim Simulation" in the following doc page :

http://www.mathworks.com/help/releases/R2012b/rtw/ug/rapid-simulations.html

Related Solutions

MATLAB: How to obtain the parameter structure when using model references with the Rsim target in Simulink 7.4 (R2009b)

Attached to this solution you will find a small demo model which demonstrates how to obtain the parameter structure from a model which uses model references with the following command:

 >>rsimgetrtp('main_model','AddTunableParamInfo','on')

Which will return A and K in the struct:

 You will get this output:
 ans = 
     modelChecksum: [809202561 3.2719e+009 3.4891e+009 1.8594e+009]
        parameters: [1x2 struct]

Please follow these steps to obtain the parameter structure:

1) Define A and K as Simulink.Parameter and set the storage class to SimulinkGlobal

2) Define K as argument for the model reference:

right-click on the model reference --> Model reference parameters --> Model argument value: K

3) Inline parameters: Configuration Parameters --> Optimization --> Inline Parameters

4) Now run rsimgetrtp('main_model','AddTunableParamInfo','on') from the MATLAB command line

MATLAB: How to retrieve Simulink parameter names from the rtp structure generated by the RSIMGETRTP function in Real-Time Workshop 6.4 (R2006a)

You can retrieve parameter name information from your Simulink model in the structure generated by the RSIMGETRTP function by enabling the following option:

rtp = rsimgetrtp('modelname','AddTunableParamInfo','on')

You must enable "Inline parameters" in the Simulink Configuration Parameters pane, and specify as "Tunable parameters" those whose values you want to change during execution without rebuilding the model.

For more information about this option you can read the documentation at the following location and run the following Real-Time Workshop demo:

web([docroot,'/toolbox/rtw/ref/rsimgetrtp.html'])
rtwdemo_rsim_param_tuning

Best Answer

Related Solutions

MATLAB: How to obtain the parameter structure when using model references with the Rsim target in Simulink 7.4 (R2009b)

MATLAB: How to retrieve Simulink parameter names from the rtp structure generated by the RSIMGETRTP function in Real-Time Workshop 6.4 (R2006a)

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