Simulink S-Functions in Ada95

Simulink S-Functions in Ada95

[Dr. Joachim Schroeer]

Has anybody ever tried to develop so-called S-functions for the modelling and 
simulation tool Simulink (part of Matlab) from Mathworks Inc. in Ada?

I've tried it in a number of ways, but failed. I use ObjectAda 7.1.1. 
As I have no binding to simulink.h (and do not intend to write one),
I do not use the OA capability to produce a dll directly from Ada.
Instead I use the given MEX-file compiling a small C-file were the exported 
(with convention => C) Ada subprograms are declared as extern.
All used Ada .obj-files are included in .lib-files which are passed to the 
MEX-command.
The MEX produces a dll as long as no extern Ada procedures are called, but if 
one
is called no dll is generated by MEX.

MEX uses the Watcom C-compiler. 
Is it not compatible to .obj-files, .lib-files created by OA?

Any hints would be appreciated.

J. Schroeer


Dr. Joachim Schroeer
AMST-Systemtechnik GmbH
A-5282 Ranshofen, Austria
Tel.: (++)43 7722 85232 30
Fax.: (++)43 7722 85232 99
E-Mail: schroeer@amst.co.at

Re: Simulink S-Functions in Ada95

[Richard Maffei]

Dr. Schroeer,

Although I am not familiar with the Simulink product, I have interfaced Ada with
Matlab.
We were able to obtain a binding from Mathworks (created by a Matlab user and
freely
available).  With luck, Mathworks may have a similar binding available for
Simulink.

If not, I believe there are tools available which generate Ada bindings from .h
files.

I hope this will assist you in your endeavors.

v/r,
Rick

Dr. Joachim Schroeer wrote:

> Has anybody ever tried to develop so-called S-functions for the modelling and
> simulation tool Simulink (part of Matlab) from Mathworks Inc. in Ada?
>
> I've tried it in a number of ways, but failed. I use ObjectAda 7.1.1.
> As I have no binding to simulink.h (and do not intend to write one),
> I do not use the OA capability to produce a dll directly from Ada.
> Instead I use the given MEX-file compiling a small C-file were the exported
> (with convention => C) Ada subprograms are declared as extern.
> All used Ada .obj-files are included in .lib-files which are passed to the
> MEX-command.
> The MEX produces a dll as long as no extern Ada procedures are called, but if
> one
> is called no dll is generated by MEX.
>
> MEX uses the Watcom C-compiler.
> Is it not compatible to .obj-files, .lib-files created by OA?
>
> Any hints would be appreciated.
>
> J. Schroeer
>
> Dr. Joachim Schroeer
> AMST-Systemtechnik GmbH
> A-5282 Ranshofen, Austria
> Tel.: (++)43 7722 85232 30
> Fax.: (++)43 7722 85232 99
> E-Mail: schroeer@amst.co.at