The UNOCART-2600 is an Atari cartridge emulator. It supports cartridges with up to 64k of ROM and 32k of RAM. Original project by Robin Edwards.
Firmware
The cartridge is flashed with the latest original firmware Ver 1.05 or Ver 2.3.28, it implements an on-screen menu for setting up the console mode, selecting the display font type. Exiting the game by pressing the joystick to the right and the reset button on the console is also implemented. This function can be disabled through the menu. All settings are saved in the non-volatile memory of the controller.
To update the firmware you don’t need a programmer, just place the file in the root of the SD card, turn on the console and update the firmware from the cartridge menu.
Quick Start
Format SD card to FAT32, copy BIN, ROM or A26 files to an SD card and insert it into the cartridge. With models up to 32GB capacity working without problems. May not work with larger capacity and high speed cards!
Firmware will only show up to 80 items per directory. You can use directories to organize your files.
Check the TV configuration jumper on the back of the board matches your TV system. Insert the cartridge in the Atari 2600. If the board is uncased, make sure the cartridge is inserted correctly, inscription THIS SIDE FRONT.
Power on the Atari and use the joystick to choose an item and the fire button to start it.
PAL/NTSC Configuration
In the current firmware version, the switch is no longer used. TV system setup is done via the menu.
For older version of firmware (optional):
The switch on the back of the board allows you to select whether the cartridge uses NTSC or PAL/PAL60 for the built-in menu.
Note that this switch only applies to the cartridge menu (and also to the Supercharger BIOS if you are using a Supercharger cartridge type). Once you select a ROM to emulate, the TV picture produced will be entirely dependent on the cartridge being emulated.
Menu
Menu allows you to navigate the files on the card and select a title to use. Joystick up and down will move through the items one at a time. You can also use joystick left and right to move to the previous or next page. Press fire to select an item. You can also use the SELECT button on the console to move to the next item, and RESET to select an item, if you don’t have a joystick plugged in.
Firmware 1.05
Firmware 2.3.28
Compatibility
The UNOCART-2600 should be able to emulate every cartridge released during the commercial life of the 2600. Newer homebrew titles should also be compatible with the UNOCART-2600, unless they use the DPC+ co-processor features specific to the Harmony/Melody cartridge. Note that the DPC support on the cartridge is not complete but
it is sufficient to play Pitfall II.
Arcadia/Starpath Supercharger titles are emulated with the multi-load parts combined in a single file. Up to 256 loads are supported (2MB file). The Supercharger BIOS will use the TV type set by the UNOCART-2600 TV jumper. Work with atari 7800 (2600 roms only). Doesn’t work with the new Atari 2600+ console.
ROM Files
The UnoCart uses cartridge detection signatures from the Stella Atari 2600 emulator to auto-detect all common cartridge types. If a file has an extension of .BIN, .ROM or .A26 it will be auto-detected. If you want to force the
cartridge to be emulated as a specific type, you can use the file extensions listed in the table below.
Case
We developed a case for a cartridge that can be printed on a 3D printer.
