I will do the project which inculudes keyboard usage. I use the basys2 board. I enter the city names from keyboard and my output will be the clock of the city. I do not know about using keyboard. Can you help me about this problem?
First become proficient in simple logic design and learn to write simple VHDL code.
As soon as you do that - writing a PS/2 controller just from looking at an example waveform will be an easy task.