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Altera_Forum's avatar
Altera_Forum
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13 years ago

Help with PS/2 Keyboard protocol

Hi, I've been trying to get keyboard input to work, but I'm having some trouble with it. I followed the procedure from a website (WHY do I have to have 5 posts to have links...), but it doesn't seem...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Since the PS/2 keyboard interface is actually a (ttl level ?) uart - you should be able to 'scope the raw data.

I also can't remember if the keyboard needs to be sent a 'reset' sequence (that might be the mouse) before it will behave properly.

Might be worth testing the tx side by trying to change the keyboard leds.