Yes, Hello word work correclty.
I copy the main.c from the hello project and now works quite well but
I open the Embedded wizar studio 8.00, the open the progect DeviceIntegration.ewp, select the path for the profile STM32Fx on \STM32F746-Discovery\Example\DeviceIntegration, I build the progect.
Then I l launch the StartBuildEnviroment.bat (STM32F746-Discovery\Build) type cd DeviceIntegration and the make install... now there is this errore
./obj/Application.o: In function `ApplicationDeviceClass_OnSetLedStatus':
Application.c:(.text+0x80a): undefined reference to `DeviceDriver_SetLedStatus
./obj/Application.o: In function `ApplicationApplication_SlotHelloWorld':
Application.c:(.text+0x7ec): undefined reference to `DeviceDriver_PrintMessage
./obj/Application.o: In function `ApplicationDeviceClass_CommandPrint':
Application.c:(.text+0x88a): undefined reference to `DeviceDriver_PrintMessage
collect2.exe: error: ld returned 1 exit status
make: *** [EmWiApplication] Error 1