Mentioned macros are defined in ...\etpu\_utils\etpu_util.h
It is needed to include all files downloaded with using of eTPU function selector to your project as well as both files generated by GCT (for instance untitled_etpu_gct.c and untitled_etpu_gct.h).
Also it is needed to call following following function from your user code
my_system_etpu_init();
my_system_etpu_start();
and then you can use eTPU functions according its descriptive appnote