2 Commits
Author SHA1 Message Date
SDD 0e2d7d9d0d docs: PROTOCOL.md tablet coordinate range (0..2199) and the device-code discriminator, confirmed against the running OS 2026-10-16 16:10:11 +03:00
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