SNES EPROM cartridge

Reprogrammable EPROM cartridge for the Super Nintendo.

If the nerd voice is wacky, it's partially because I am still recovering from a flu. The rest is because I really do have a nerd voice.

Mask ROM chip was removed, and pinout slightly re-wired for compatibility with 27C080 8-Mbit EPROM chips. The 32-pin ZIF socket makes changing EPROMs easy.

While you can buy cheap EA Sports games as donor cartridges for $2 or $3, each ZIF socket cost me around $8 and each EPROM cost at least $4 or so, not to mention the EPROM programmer which is around $40 (and a UV tube for erasing the EPROMs). But hey, who would have thought that EA Sports games would be useful for something?

It is possible to use donor carts with multiple mask ROMs as well as SRAM so you can even play RPGs and other games that have save data, but you have to pay attention to whether the donor cart and the game you want to play are LoROM or HiROM and other stuff I don't fully understand yet.

Hacking information found at ROM Laboratory:
http://nintendoallstars.w.interia.pl/romlab/sneslab.htm

Category:

Howto & Style

Tags:

• SNES hack
• flash cart
• EPROM

[Educationscience]

Awesome job there. Could you make another video going from a start to finished product. There are lots of small details that you don't show. What model eprom did you use? Where did you get that snes extender cart? Did you have to remove the header on the rom file? Did you have to split the rom into 2 parts? How did you connect the ZIF to the cart chip board? This is very cool but you got to show more information so that someone else can do it too. Thanks!

[iatneH]

@Educationscience

Thanks for the comment, a "making of" video is a good suggestion and I ought to have done that if I had done a bit more planning. I'm partially getting out of video games so I might not have many new videos, and I'm unlikely to make another SNES cart. I do have plenty of parts left over for another, so if I have some time I could certainly try again.

[PanterAmetal100]

Hey man, it's very nice, but.... how do you load the games on the chip?

[iatneH]

@PanterAmetal100

You have to buy an EPROM burner which hooks up to your PC - I am using a Willem 3.0 (or something) - and this comes with a software which writes your downloaded ROM onto the chip, as long as you have everything connected and set up properly.

[thatguyontheright1]

Can I take the EPROM chip from the cart, put a new game on it, and then re solder the chip instead of buying a new EPROM chip?

I know you have to erase them.

[iatneH]

@thatguyontheright1 It's a ROM chip inside the cart, not PROM, so it cannot be erased or rewritten. The part that makes me feel bad is that it's hard to get EPROMs now, and soldering them in for clean cart conversions instead of using sockets makes another EPROM gone forever (kind of).

[ToastedOmond]

What Kind of tv?

[RaulBillieJean]

Hey is it possible to use a one time only write type of rom? one that you cannot erase and solder it in the super nintendo game cartridge pcb?

[newkillergenius]

Great job man.



[ARMODILLOXX33]

You're the BEST MAN! I love that mod! I think I can provably load EMULATORS onto the almost any cartridge! HEHEHEEH! THANKS ..

I m ebaying for the EPROM Programer as you read this!

[kidreaping]

wow thats really cool

[j7512]

Also another question, did you just solder the ZIF socket where the old EPROM chip was? It that's how easy it is?

[j7512]

Can that take Flash EPROMs too or just EPROMs?

[commodore256]

I like your monitor.

[raylyd]

hi i have nigel mansell f1 challenge and a mate of mine would like a game called

BS Kaizou Choujin Shubibinman Zero

i have programmed the eprom but need to rewire the cart for the eprom please help me thanks?

[Dark0Lord7]

@iatneH Don't EEPROMs work?