arti/vt1200
1
0 Fork 1
mirror of https://git.k-space.ee/arti/vt1200.git synced 2026-10-31 12:05:05 +02:00
Code Wiki Activity
Files
97dbea7fedb04dbbc4b92eb7ef7065a4b09f2fbd
vt1200/reference/keyboard-mouse/elkay/CLAUDE.md
T
SDD 3fd1e13b2e docs: keyboard/mouse protocol spec — LK401 (LK201 protocol) + VSXXX-AA mouse, sources, MAME lk201 device 
Distils public docs into reference/keyboard-mouse/PROTOCOL.md for the level-1
Keyboard (27) / Mouse (26) device tests:
- keyboard: 4800 8N1 RS-423, self-test via FD -> 01 00 00 00 (errors 3D/3E)
- mouse: 4800 8O1 RS-232, self-test via 'T' -> 4-byte report (errors 3D/3E, >=0x20 fatal)
- separate ports: DUART2 A=keyboard, B=mouse (NOT daisy-chained)
MAME already has an LK201 device (src/mame/dec/lk201.cpp/.h) but no DEC mouse.
2026-10-16 11:38:52 +03:00

664 B
Raw Blame History

elkay

DEC LK401 keyboard → USB HID converter, in an inline box. The primary host application is veetee (github.com/issinoho/veetee, same author), whose positional PC→LK401 keymap the converter targets; see docs/keymap.md.

  • Firmware: PlatformIO in firmware/, envs micro (default, Arduino Micro) and teensy2. Build with pio run (and -e teensy2) from firmware/.
  • Protocol facts live in docs/protocol.md; mark anything not yet confirmed on the real keyboard as verify, and remove the mark once it has been confirmed.
  • The keyboard talks on Serial1 at 4800 8N1 through external inverters; Serial (USB CDC) is the debug console.
View Git Blame Copy Permalink