Draft: PS/2 Mouse support #70
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But the mouse port on my Elecrow board doesn't seem to work - I don't see 0xAA 0x00 on start-up from the mouse (but I do if I put the mouse in the keyboard port).
1) The clock flipping seems to break things (not sure why) - and I was flipping the wrong interrupt bit on the keyboard anyway. 2) Added an encode function for PS/2 words
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The mouse now works correctly. I need to look with an oscilloscope though, because I had to take out the clock inversion code and I really thought that was important when talking back to the Keyboard or Mouse. Also, we can't send multi-byte sequences to the keyboard or mouse yet, and we need that to control the Caps Lock / Num Lock / Scroll Lock lights. |
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Also, we probably want to let the host write to the PS/2 ports. |
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A work-in-progress. I can talk to the keyboard, but I never hear anything from the mouse. I suspect PCB issues.