Timer XCode Main Program

Hi all, I'm just starting out in Xcode and looking to set up a timer loop to call functions periodically in soft real time for simulation prototyping. I'm asking here in case anyone has already written a basic main program in Xcode and are happy to share or discuss their methods/code, or can point me in the right direction. Thanks in advance, Paul

[Walter Roberson]

It is not clear how your question relates to MATLAB?

[Paul Metcalf]

Thank you for your question. The question most certainly relates to MATLAB. I am looking at developing some project resources for those wishing to gain better integration between SIMULINK/EMBEDDED CODER and the XCODE IDE, using a configurable main program or project generator interface. This question relates to those looking to rapidly prototype on the iPhone or iPAD their models developed in SIMULINK. Please let me know if you need further information?