Hi guys!
I’m trying to debug the example code for 3-phase motor control provided by Atmel in the application note AVR452. I have to use the IAR compiler not the gcc with AVR studio. I created a new workbench including all the necessary source and header files and the compiling and making phases are OK: in fact there are no errors!
But when I try to debug the code using the simulator there is an error message which signals that the debugging session cannot be started maybe because of a fail of debugger initialization or because the .d90 file is corrupted or unsupported. 
Does anybody have an idea of the reason of this thing? Help me please 
PS:I also developed another simple workbench and in this case everythig is working in the right way so it doesn’t seem to ba a trouble of the software.