Simulink® Real Time Execution

C-MEX S-function that reduces the execution speed of a model close to real time

Description

This block should be used only to reduce the speed of a Simulink® model so that it can be observed running in real time. If the simulation is already slower than real time, this block has no effect.

To use it, extract the files to a directory on the MATLAB path. Re-open the Simulink browser and you should see a new library named "Useful Stuff" which contains one block named "Real-Time Subsystem". Place this block in a model to use it.

To use this file under other operating systems, just run "mex sfun_time.c" to generate the MEX-file for your platform

For accurate hard real-time, I recommend looking at xPC Target or Real-Time Windows Target.

• Required Products: Simulink
• MATLAB release: MATLAB 7.7 (R2008b)
• Other requirements: You will need to re-mex the s-function for other platforms.

[Andreas]

Fantastic!!! And so easy to use!!!!

[Lukas Lansky]

Very nice.

[Tan Edwin]

problem solved and it runs well

[Harrison Yiu]

hihi,
I am sorry that i can execute this file ,
the error is showned :
Error in S-function 'rtc_example/Soft Real Time': S-Function 'sfun_time' does not exist.

How can i solve this problem ?
I have already linked to directory on the MATLAB path.

Thanks a lot , I am now using R2008a

[Guy Rouleau]

Harrison, if you are not using a Windows 32-bit system, you need to execute "mex sfun_time.c" to generate the MEX-file. Note that if you never used MEX before, you will need to execute "mex -setup" to choose a compiler.

[Chee Syn Ang]

 

[Guillaume MARTIN]

Simple, efficient : what I needed !

[Benjamin]

 

[sufendi mulia]

hi,
i have try to run your file and it's work fine. but the problem is, the simulation run to slow compare to real time after i add your function in my simulink project.
the question is, can i make it run faster so it run same as real time ? and how to make it.

thanks.

[Sun]

 

[Mark]

I am not seeing the "Useful Stuff" library pop up. Do you expect problems running this on 2010b (XP,32 bit)? Thanks!