create Executable file from simulink model

Hi @ all,

I would like to ask you how I can build a model , using the Simulink Coder. I would like to call the so generated exe from a Matlab script.

I tried to performe this action in the following way :

I try to enables, in the configuration parameters mask, the load from workspace, but during the compilation the following warning appears: "Loading external input from the workspace is not supported for current code generation target".

I created the .exe file but it is not able to read data, through some input port, from the Matlab workspace.

In this case the target used for compiling is the generic real time (grt).

Some idea?

Thanks in advance

Mitch

[Andrea Coraddu]

Hi Mitch

I have the same issue!

Maybe someone can help us...

Answer 1

[Kaustubha Govind]

I think you might need to modify the generated code to accept the input from whatever source you need it to use.

Answer 2

[Walter Roberson]

When you generate an executable (rather than a mex) then it runs as an independent process and there is no connection to the MATLAB workspace (other than the command line options.)

Answer 3

[Mitch Martelli]

How I can do this?

Maybe in the first question I have not been clear

Let me shown a simple example :

I have a simulink model called foo.mdl Inside the model there are :

input port

integration block

output port.

I would like to build foo.mdl.

Then I write the following Matlab code :

clc
clear variables
stoptime=input('stoptime') %10;
step=input('step') %0.01;
t=input ('t') %[0 stoptime];
u=input('u') %[0 1];
!foo.exe.

Then with the deploytool i would like to compile the matlab script.

My problems is the following :

How I can send the information receveid by a end user to foo.exe? When I build the simulink model all the parameter (stoptime, step, u,t) should be present in the matlab workspace.

Another problem if i put in the model only number and i complite with grt target the following warning appears: "Loading external input from the workspace is not supported for current code generation target".

[Walter Roberson]

Generate mex instead of a standalone executable and call it from MATLAB.

Or else modify the generated code to retrieve values from the command line (I don't know anything about the structure of the generated code so I do not know how you would have to modify the blocks to do this.)

[giovanni mazzuto]

have you some examples?