Homebrews & more

The ultimate blog dedicated to hardware et software stuffs

Atari

Entries feed

256-in-1 : 256 games cartridge for Atari 2600/7800

256in1-Pcb.png
256-in-1, nov. 2016

256-in-1 Cartridge

Version 07/05/2014

Few months ago, I finished a new cartridge for the Atari 2600/7800.

This piece of hardware can be seen as a huge cartridge, containing up to 256 (Atari 2600) games or homebrews. Originaly, this board was made just to show something to users during a retro-gaming day (AC 2014). Because I had only one month to do it before the show, I decided to do something very simple and cheap.

Usage and restrictions

  • This cartridge can handle 2KB and 4KB rom images only (Not banked),
  • Only Atari 2600 rom images are supported,
  • The board can be plugged-in Atari 2600, Atari Jr and Atari 7800,
  • User should select the rom image with the corresponding micro-switch position before power on.

Enjoy !

Atari 7800 Multicart

A7800-MultiCart.jpg
Atari 7800 Multicart, nov. 2016

Atari 7800 Multicart

A long time ago, I have created a Multicart for the Colecovision.

Now, it is time to do the same for a very nice console : Atari 7800 console.

For the moment, only a prototype has been made and I am still debugging it. I will post the full package when all bugs are fixed.

Keep in touch !

 

FFin1 : 255 games cartridge for Atari 2600/7800

FFin1-Pcb.png
FFin1-Pcb.png, nov. 2016

FFin1 :Version 30/09/2014

 

Few weeks after making the 256in1 cartridge, my friend ZX81 and I have decided to do something better.

We have made a new cartridge, containing up to 255 (Atari 2600) games or homebrews

Instead of using micro-switches to select the rom image, a bootloader and associated electronics have been added

The user power-up the console, highlights the game with the joystick and press fire to launch the game

 

Usage and restrictions

  • This cartridge can handle 2KB and 4KB rom images only (Not banked),
  • Only Atari 2600 rom images are supported,
  • The board can be plugged-in Atari Jr and Atari 7800,
  • Due to the form factor, the cartridge can not be inserted into the Atari 2600 slot without modification,
  • Bootloader must be inserted at the beginning of the ROM.

Warning : The bootloader is not included into the package.

Please go to my friend ZX81 web site to get it <a href="http://zx81.zx81.free.fr">

Have fun  !

Buzz
 

Atari 2600 F8 bankswitching cartridge

A2600-ROM-CART-pcb.png
Atari 2600 ROM Cartridge, déc. 2012


Atari 2600 ROM Cartridge
This board implements the F8 bank switching method to be used with 8K A2600 ROM files.
An extra two 2-positions dip-switch is used to select a 8K portion of the 32K Eprom.
This board is based on the F8 bankcswitching design : http://www94.pair.com/jsoper/bankswitch_f8.html

Files
A2600-ROM.sch : Schematics (Eagle 5.0.0)
A2600-ROM.brd : PCB (Eagle 5.0.0)

Usage
Just 'flash' four 8ko files to the UVProm and plug-in the cartridge into the console.

JP1 :    

  •   1-2 : ROM is Bank-swiched for 8K ROM (F8 method)
  •   2-3 : ROM is not bank-switched. A12 is grounded to GND

S1 :     1 & 2 : Used to select a 8K portion of a 32K ROM (4 slots)


Enjoy !