Can Prop send PS2 keyboard data?
Oldbitcollector (Jeff)
Posts: 8,091
I'm curious if the Prop can output PS2 keyboard data to say my PC to create my own keyboard interfaces?
Oldbit
Oldbit
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Chip Gracey
Parallax, Inc.
In a nutshell, the format is
1 start bit
8 data bits LSB first
1 parity bit
1 stop bit
The PC samples on falling clock edge, with clock running aorund 10kHz.
When a key is pressed, the scan code is sent. At the release, $f0 + scan code is sent. So for your case its: scancode , f0, scancode. Special characters take up to bytes. You can google out the AT PS/2 scancode table. For XT, there are some differences.