I'm trying to compile a sample I2C slave app using the tn2323 (defined in the project), but somehow the USI related registers (TWAR, TWCR, etc.) aren't being defined/included. I thought this was supposed to be automatic in AVR Studio once the particular part was selected for the project.
Is there something else that needs to be done ?
I've located the [ tn2313def.inc ] file which I suppose could be used, but I have no idea how to integrate this into what is now an all C++ project.
I even have the XML def file, but I understand that the XML converter utility is now defunct.