i have to do 4x4 scan key to ps2 intf. with (one time) programmable keys, numeric part + some fonction key ie. P, A, X, Y...
but I'm not shure is it a lot of work in that system area,: tx ack, rx sys requests, init in PCstart, and others, if there is a way to put paralel with old kb board to do that portion, (if I dont hawe to switch betwen) then, sems to be easy ?