Sum A4000 USB HID Keyboard Interface Adapter Amiga 4000 CD32

Sum adapter enables connecting USB HID keyboards to your Amiga 4000/CD32. Sum is based upon 16-bit Microchip microcontroller.

Sum provides built-in USB stack which enables USB HID keyboards support without the need for installing additional AmigaOS software drivers. The whole installation process comes down to simply connecting a Sum adapter’a plug to the keyboard port of your Amiga A4000/CD32

Additional feature of the adapter is its „Bootloader” function allowing future firmware upgrades.

Sum comes with dedicated configuration mode, which becomes available when one presses simultaneusly R-Shift + Pause keys. User preferences are saved to the built-in EEPROM memory – thanks to which when you reconnect the device – it is already configured!

Features of Sum A4000:
- support for both USB HID,
- Amiga 4000/CD32 compatibility,
- built-in USB stack,
- configuration mode for PC keyboard (activated by R-Shift + Pause key combination),
- built-in EEPROM memory enabling user preferences storage,
- „Bootloader” function allowing future firmware upgrades,
- „Status” indicator LED providing information about device’s state,
- built around 16-bit Microchip microcontroller utilizing nanoWatt technology

Entering configuration mode (R-Shift + Pause):
F1 - RESET type - software (A2000,A3000,A4000,CD32,CDTV) or hardware (A600,A1200),
F2 - mapped Amiga Right to Alt Right,
F10 - view keycode (on / off),
F12 - display configuration

Mapping keys:

Amiga keys - USB keyboard
Amiga reset - CTRL + L-Win + R-Win, CTRL + L-Alt + R-Alt, CTRL + L-Alt + Del
Help - F12
L-Amiga - L-Win
R-Amiga - R-Win