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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.
Let's have a look at flashcarts and multicarts for the Vectrex and also the Sean Kelly repro cartridge shells. You will also see the new homebrew shooter game VecZ.
Here I have a look at an early prerelease version of the new Mateos Rewritable Multigame Cartridge: