I use Simulink from time to time to develop and test algorithms but I never use automatic coding tools (not totally set against them but the cost is very high for commercial work and I wouldn't use them enough to see benefit).
@Abdel - can you post your Simulink model or explain what you are working on ?
If you would like to see the C code that is being deployed to the Raspberry Pi then you need the coder products as some of the others have mentioned here. If you are merely looking to deploy algorithms to the Pi 3 then take a look at this free support package - Raspberry Pi Support from Simulink - Hardware Support
