Rotary Encoder data from SbRIO 9606

[AlienVi6789]

Good Evening,

I am using rotary encoder( Picture Attached). and i am using SbRIO-9606 hardware board. I dont have any idea , how to get Speed and angle. I made FPGA file. but how to start in main file?

Thank you in advance

[AlienVi6789]

Here is the Picture