unified_retro_keyboard/hardware/interface-osi
Dave 5fa0f80b4e Add OSI interface schematic
Provides a keyboard interface to interface with OSI computers.  Equivalent to an
OSI 542C.

- Includes sound circuits

- Includes RESET delay circuit

- SHIFT LOCK can be mechanical push-on/push-off or soft toggle, selectable by
jumper.

- Provide SHIFT LOCK LED output.
2020-04-21 14:30:59 -05:00
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interface-osi.pro Add OSI interface schematic 2020-04-21 14:30:59 -05:00
interface-osi.sch Add OSI interface schematic 2020-04-21 14:30:59 -05:00
Sound.sch Add OSI interface schematic 2020-04-21 14:30:59 -05:00
special_keys.sch Add OSI interface schematic 2020-04-21 14:30:59 -05:00
unikbd-osi.kicad_pcb first commit 2019-12-12 14:46:29 -06:00
unikbd-osi.pro first commit 2019-12-12 14:46:29 -06:00
unikbd-osi.sch first commit 2019-12-12 14:46:29 -06:00