(DIY) ATARI 800XL MULTI GAME CARTRIDGE (4 x16KB)

 You can make your own custom Atari 800XL Cartridge.

Hello,

 This is a simple, DIY multi game Atari 800XL cartridge. It has 4 games capacity, each 16 kilobytes size, total 64KB.

 All components are through hole, marked on the PCB, Easy to solder, Easy to make ;)

 This is a tested and working circuit board. This cartridge is tested with Atari 800XL.

 Just select 4pcs. your favorite 16 Kilobytes ROM Files (".BIN" or ".ROM" extension) and make your own custom Atari 800XL Multi Game Cartridge.

This PCB is also suitable for making 16 KB single-game cartridges. DIP switch is not used when using as a single-game cartridge.

You can find many different ROM files from internet by searching "Atari 800XL ROMS" or "Atari 800XL tosec"

ROM files bigger than 16 Kilobytes are not suitable for this cartridge, you can use only 8 or 16 Kilobytes ROM files.

If your ROM file is 8KB then you should append it to itself to make a 16KB file. You can simpy do this with a "HEX-Editor" program.

You should append 4 pieces 16 kilobytes ROM files each other, reaching to the size of EPROM capacity, by using a "HEX Editor" program. EPROM must be fully filled from $0000 to $EFFF

You can download a sample EPROM image from the bottom of this page.

ALWAYS TURN YOUR ATARI OFF BEFORE CHANGING/SWITHING BETWEEN DIFFERENT ROMS!

This PCB design is based on Joe 'Kingpin' Grand's Atari cartridge schematics. Many thanks to Joe 'Kingpin' Grand.

https://en.wikipedia.org/wiki/Joe_Grand

You can see my other PCBs by clicking here.

For Short PCB version

(Suitable for ATARI 400 and ATARI 800)

https://www.pcbway.com/project/shareproject/ATARI_MULTI_GAME_CARTRIDGE_4_x_16KB_FOR_ATARI_8_BIT_FAMILY_SHORT_VERSION_053e8dbd.html

COMPONENTS:

27c512 (W27C512)

74LS00 or 74HC00

2 Row 4 Pin 2P Positions 2.54mm Pitch DIP Switch

100nf Ceramic Capacitor

2pcs. 10K 1/4 Watt Resistors

DIP28 WIDE IC SOCKET (optional)

DIP14 IC SOCKET (optional)

You will need a programmer for EPROM

Please choose: Edge connector YES and Bevelling Yes (45°)

In order to protect your electronical devices, always turn off your ATARI before inserting or removing cartridges.

Gerber files can be changed at any time. Before paying for the PCBs, be sure to update your orders!

If your programmer have capability to test IC chips, like 74LS series, then you should not forget to test them before soldering, some chips may have defect. (TL866 Minipro Programmer is able to test some of logic IC)

As you can see I have uploaded many projects and I am still working on new projects. If you have any questions, please look for answers online. Unless I specify explicitly, all my projects are tested and confirmed to work under normal circumstances before being shared. I'm sorry I didn't have enough time to answer all the questions.

Use this PCB at your own risk !

Have fun

Thank you.