Jump to content
Sign in to follow this  
D_S

Atari 2600 using AT28C256 EEPROM chips

Recommended Posts

Hi

 

 I'm trying to make a type of FlashCart for Atari 2600 using an Arduino Mega 2560 and an EEPROM memory from ATmel (AT28c256, 64 Kb). Initially, my project uses the PC  for  flash memory. I upload a custom Sketch containing the bytes of the game Keystone Kapers. The burning process worked perfectly. My goal is to burn the ROM using Android Device via Bluetooth. I am decompiling several ROMs and making different Hex files. I will place these Hex files in a folder and select the file of my choice to burn in memory.

 

When the burning  process ends, a buzzer plays the PacMan's intro music.☺️ ☺️

 

 

My question is about mapping the memory chip with the cartridge board. I have a cartridge from a Brazilian company called Dactar. This cartridge comes with 4 games in 1. To select the games, it is necessary to change the position of the lever switches. There’s a IC  74LS04 to control the switches positions.

 

But, guys, I don't want to use this Brazilian cartridge, because I think it's very complicated. And there is another problem even more complicated ...

 

...I know that this Atmel memory at some points, has different memory pins like the W27C512 and others. Has anyone here burned  Atari 2600 games  using this same type of memory that I use? does anyone have a print file of the circuit board specifically developed for this type of memory? in case of yes, could anyone share this resource with me?

 

Thanks in advance.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...