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Type: Posts; User: xIceMan

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    I just recently saw this topic:...

    I just recently saw this topic: https://www.epforums.org/showthread.php?105103-GUIDE-Make-a-Reprogrammable-Genesis-Cart-with-a-TL866

    if anyone needs such a 16 bit adapter for the TL866, let me...
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    Enabling/Disabling the battery via switch is...

    Enabling/Disabling the battery via switch is possible, however, you will need to do this with the decoders as well, iirc.
    A 27C322 can be used on any game with the proper wiring. However, you cannot...
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    A18 has to be connected to cartridge connector B7...

    A18 has to be connected to cartridge connector B7 if there's no connection to the board.
    Otherwise the game can't boot.
    See first post for details (down below).
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    It's me again. :P I've tried piggybacking...

    It's me again. :P
    I've tried piggybacking 3x27c322 in order to gain a 12MB game. The problem is that only the first EPROM is being loaded, no switching happens here. Here's my setup for the 74LS139:...
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    Awesome. Thanks alot. Going to try this later!

    Awesome. Thanks alot. Going to try this later!
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    A diagram for that would be awesome. I'm not...

    A diagram for that would be awesome. I'm not planning to use the 32x or MegaCD with that anyway.
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    I have a problem. I wanted to make the Bad Apple...

    I have a problem. I wanted to make the Bad Apple Demo (which is 8MB) onto a cartridge. However, I was thinking to use a 74LS139 just like in SNES games, but obviously this won't work, or does it?...
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    That would be great, since I ran into a similar...

    That would be great, since I ran into a similar problem with Elf Wor/Super Magician from Gamtec. The game itself works fine in Kega Fusion (when the ROM is 1MB, since the game itself has a build in...
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    Just wanted to say that Oh Mummy is working now....

    Just wanted to say that Oh Mummy is working now. The problem lies within their boot code (might be a different version for the game that's being sold). Either way, using a game genie and then...
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    Will take a photo after work. Pin 32 goes to...

    Will take a photo after work. Pin 32 goes to BYTE/VPP. Was not lifted but inserted directly to the PCB.

    Here's the promised photo. Also A19 isn't touching any left over pins. I was just too lazy...
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    Looks like I have a problem here. I was trying to...

    Looks like I have a problem here. I was trying to burn Oh Mummy on a 27C160 (it verified and gave me no errors). However, after soldering the EPROM to the PCB (ROM was 1MB) I lifted A19 and connected...
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    Oh, I see. I didn't know about that. I thought...

    Oh, I see. I didn't know about that. I thought you could simply burn 2 EPROMs with the same file and connect all pins except D0-D7. Thanks for the information.
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    Hmm, that makes sense. I'll try that method....

    Hmm, that makes sense. I'll try that method.
    Also, I'm using a Willem Programmer 5.0E and I'm burning them one by one with swapped bytes, of course.
    I've expanded Uwol to 512KB since it's...
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    Haven't tried any retail games yet, at least not...

    Haven't tried any retail games yet, at least not with 2x 8Bit EPROMs.
    As for the guide you mentioned. I've already made carts with 27c322 EPROMs and they work fine. However, I ran out of EPROMs and...
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    Sega Mega Drive 27c040 EPROM

    So,
    I've been trying to burn 2x 27c040 EPROM to be used on a Mega Drive cartridge according to this page you are supposed to connect A0-A18 together to mask ROM
    D0-D7 from 1st EPROM to D8-D15 on...
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