HP-HIL Keyboard Design

[andybarrett1]

Hello all.

An interesting project has come my way.... To design a bespoke keyboard outputting a few function keys and trackerball via HP-HIL to an old HP Workstation, There are 10 needed in total

Has anyone done similar or have any ideas

Thank you for reading

Andy

[pedja089]

Use HIL to PS/2 converter. Then send data from pic using PS/2 protocol. I think you have example on somewhere forum.
As far as I know HIL use dedicated IC for interfacing device MCU to HIL Bus.

[andybarrett1]

Was thinking of using PS2.... Then converting !

Need to get back to this ...

Thank you for reply

Andy