Why can't I print to the Matlab console from mdlOutputs in external mode?

Hello,

I'm using a Level-2 C S-Function to call C code from Simulink (Matlab 2011a) that interfaces with my hardware.

I'm able to print from the mdlOutputs function (where I call my C code) using either mexPrintf or ssPrintf when I check my code in "normal" mode, but when I change it to "external" so that I can run my hardware, all printing from this function stops working. I'm still able to print from all other functions, however, i.e. mdlStart, mdlInitializeConditions, and mdlTerminate.

Do I need to change any settings to allow it to work from mdlOutputs, or is there something about RTW that disallows it completely?

Thanks for any clarification in advance!

[Neha Thomas]

Was there any update from this?