Open source Sega Mega-Tech reproduction game carts

[mourix]

There are three flavors here:

1. Real Mega Tech games: burn the original 27C256 file that comes with the specific romset.
2. MD-MT Converter: burn the 27C256 file that is in the folder on Github.
3. Mega Drive games: these don't come with a menu rom, so you will have to make your own with the python file, or the game won't show up.

 

[akiraakira29]

There are three flavors here:

1. Real Mega Tech games: burn the original 27C256 file that comes with the specific romset.
2. MD-MT Converter: burn the 27C256 file that is in the folder on Github.
3. Mega Drive games: these don't come with a menu rom, so you will have to make your own with the python file, or the game won't show up.

I want to make the MD-MT Converter. Where exactly can i found the 27c256 file on Github?, I only found the .py script file.

 

[mourix]

I want to make the MD-MT Converter. Where exactly can i found the 27c256 file on Github?, I only found the .py script file.

Here!

 

[akiraakira29]

Here!

Hello, thank you very much. I was so fixated on this .py file and didn't pay attention to this file.
So can I write this ".ic1" file directly to the eprom with a programmer without any modifications?

 

[mourix]

Hello, thank you very much. I was so fixated on this .py file and didn't pay attention to this file.
So can I write this ".ic1" file directly to the eprom with a programmer without any modifications?

Correct. It has a premade menu text I did.

 

[convhexmed]

Correct. It has a premade menu text I did.

Hello.

When programming the Megadrive chips 27c400, 27c800, 27c160, 27c322 you have to give the byte swap option. Because the games have to be programmed like that on those chips, otherwise the Megadrive won't recognize them.

Do you have to do the same for the 27c256 menu chips?

In the images you posted in previous answers I see that you program a 27c160, but I don't see that you have performed the byte swap.

Thank you very much

 

[mourix]

Hello.

When programming the Megadrive chips 27c400, 27c800, 27c160, 27c322 you have to give the byte swap option. Because the games have to be programmed like that on those chips, otherwise the Megadrive won't recognize them.

Do you have to do the same for the 27c256 menu chips?

In the images you posted in previous answers I see that you program a 27c160, but I don't see that you have performed the byte swap.

Thank you very much

You are not making custom Mega Drive games. No swap needed.

 

[convhexmed]

In my case I'm going to make the mega drive converter. So I don't need to do the byte swap to the 27c256B chip when I program it?

 

[mourix]

In my case I'm going to make the mega drive converter. So I don't need to do the byte swap to the 27c256B chip when I program it?

Correct. Only Mega Drive game roms you try to hard convert to Mega Tech need it. Everything original for Mega Tech does not need adjustment. Menu roms only exist for Mega Tech.

 

[convhexmed]

ok. Thanks for your help.