UK101

UK101 Hardware emulator on Stellarpad using Energia and ESP8266 / ESP32 with Arduino.

See blog article.

Software

Hardware

See the 6502 Emulation library's hardware requirements and wiring.
See config.h for configuration options.

Firmware

Some of the function keys on the PS/2 keyboard control the machine's inner workings:

F1: full reset (cpu, keyboard, SD card, etc.)
F2: advance tape
F3: rewind tape
F4: toggle monitor rom
F5: change display resolution:
- 40x30, 40x15, 45x30, 45x32, 45x16 (on UK101)
- 32x30, 32x32 (on Superboard)
F6: checkpoint to file (default CHKPOINT.xxx)
F7: restore from checkpoint (select image with F2)
F8: select destination device for current file (Tape, A:, B:, C:, D:)
F10: toggle CPU debugging on serial port

Keyboard

Some keys on the Numeric Keypad have special mappings:
- NUM: ^E, 0: ^Q
- 2: ^F, 4: ^A, 6: ^D, 8: ^S
- /, *, -, +