PS/2 Keyboard opencore (keyboard side) available ???

It's also not commonly done in an FPGA. Most PS/2 keyboards use a mask programmed 8048, although I did once find one (from Fujitsu) that used a mask programmed 6805.

If you really must use an FPGA, you could probably write the code in a few minutes, once you find a reference to the protocol ... googling ...

Regards, Allan.

Build one yourself. To receive the codes is more complicated then sending them and in a lab course I teach it takes my students about four hours to build a PS2 receiver. So a sender should be no problem.

The protocol is described here:

The scancodes are here

For most keys you just have to shift out one byte when the key is pressed and two bytes when it is released.

I expect that interpreting whatever it is that you use for your keys is a lot more complicated then the PS2 part which I estimate at 10 lines VHDL at most. (Plus any FIFOs that you might want to add)

Kolja Sulimma

there is possible no keyboard side core available as it is not a very comman thing to have :)

I would personally probably do it a little tweaking, putting a PicoBlaze processor onto the FPGA it takes one Block RAM and about 70 Slices. It does fit into any spartan. So you can use it even in XC2S15. Even though a simple PS2 SIE (serial interface engine) itself is smaller than PicoBlaze then if you add full keyboard control status leds etc.. I think you will end up in similar Slice count or more.

antti