Anyone expert in developing level 2 s function

Hi,ANybody there who knows to develop level 2 s function in MATLAB ,using .m method,,I am trying to develop level 2 s function to send simulink data to workspace while simulation is running, It would be helpful if anybody there?

[Kaustubha Govind]

Arun: We can have a more useful discussion if you could post specific questions about issues that you are running into while writing your S-function. Please read the documentation for an introduction to writing Level-2 MATLAB S-functions. You can also see multiple demo models by typing "sfundemos" at the MATLAB prompt.