Openhabin 2.0 for KNX

Hello there…
first of All I’m new at here , and try to do openhab with KNX

Just heard a lot about the Openhab , but I’m not able to communicate with open hab with KNX

I have Raspberry Pi-2 Model B , And KNX IP ROUTER .

Please Help me to install and get working with these two from very starting .

If You have something , like writeable file to raspberry pi for knx binding that will help me more

Or Any suggestion , documentation anything as this one on my priority

Please help me on this
Eagerly waiting for reply