Sega Cartmodding Help

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hidden0
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Joined: Wed Dec 29, 2021 1:28 am

Sega Cartmodding Help

Post by hidden0 »

I have been trying to find out if i can use NFL Quarterback Club 32x Cart to make a Knuckles Chaotix 32x Cart.

Both of them uses the save features and are of 4MB as mentioned on Segaretro page . If i use m27c322/160 Do i need to Rewire stuff and if yes where i can find that info , I have been making Snes Repros since there are tons of info online but can't really find sega's info to complete my collection.

Any resource or help will be greatly appreciated .
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Fisher
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Re: Sega Cartmodding Help

Post by Fisher »

AFAIK, you need to byte swap the file before writing.
Try to read the original ROM on your programmer and you'll probably understand better.
hidden0
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Re: Sega Cartmodding Help

Post by hidden0 »

Fisher wrote: Wed Mar 16, 2022 3:44 am AFAIK, you need to byte swap the file before writing.
Try to read the original ROM on your programmer and you'll probably understand better.
Just wanted to know if there is any rewiring involved just like SNES Eeproms
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Fisher
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Re: Sega Cartmodding Help

Post by Fisher »

AFAIK the ROMs use standard pinout.
Can someone please correct or confirm me?
hidden0
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Re: Sega Cartmodding Help

Post by hidden0 »

I am really willing to get the confirmation
Markfrizb
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Re: Sega Cartmodding Help

Post by Markfrizb »

Fisher wrote: Thu Mar 17, 2022 5:20 am AFAIK the ROMs use standard pinout.
Can someone please correct or confirm me?
You’re correct. The OEM roms are byteswapped otherwise they are pin compatible with 27c322
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