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TmEE co.(TM)
Very interested
Joined: 05 Dec 2006
Posts: 1947
Location: Estonia, Mahtra village
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 Posted: Tue Dec 05, 2006 1:44 pm Post subject: New home-made MD cartridge R/W device is born |
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On 2nd december is started to build a MD cartridge R/W device whis is 100% designed by me. Today (5th) I got it working correctly, I dumped my Sonic & Knuckles cartridge. It took 45 seconds and the result was a perfect bit accurate copy of the ROM image. If I ASM optimize my QB45 code (I love QB45) I believe it would take 30 seconds.
Some pics of it are on my site's MD section, documentation, schematics, software are being prepared and soon available.
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cdoty
Very interested
Joined: 29 Nov 2006
Posts: 116
Location: Houston, TX
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| Posted: Tue Dec 05, 2006 4:43 pm Post subject: Re: New home-made MD cartridge R/W device is born |
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| TmEE co.(TM) wrote: |
Some pics of it are on my site's MD section, documentation, schematics, software are being prepared and soon available. |
Wow, that looks rough. 
Can't wait until it's finished though.
If I replaced the rom, in a sega cartridge, with the flash chip, would it be able to program it? |
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TmEE co.(TM)
Very interested
Joined: 05 Dec 2006
Posts: 1947
Location: Estonia, Mahtra village
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| Posted: Wed Dec 06, 2006 6:31 am Post subject: Its rough indeed... |
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It is rough, but it works !!! I dumped most my cartridges, messed with backup RAM on Sonic3 cart and
even BURNED an EPROM !!! Man, EPROMs program easy. I started to write the documentation and some instructions.
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cdoty
Very interested
Joined: 29 Nov 2006
Posts: 116
Location: Houston, TX
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| Posted: Wed Dec 06, 2006 3:19 pm Post subject: Re: Its rough indeed... |
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| TmEE co.(TM) wrote: | | ...and even BURNED an EPROM !!! Man, EPROMs program easy. |
A friend a I were discussing that last night. Is the eprom programming pin on the edge connector? Would it be able to erase a flash rom? |
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TmEE co.(TM)
Very interested
Joined: 05 Dec 2006
Posts: 1947
Location: Estonia, Mahtra village
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| Posted: Thu Dec 07, 2006 8:44 am Post subject: |
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The VPP (12V programming voltage) pin is not on the cart slot, but it could be if you like (use some unused pin). I used a wire for that. I'm working on EPROM stuff as all EPROMs are not programmed the same way. There are lots of Flashes out there, if its industry standard and 5V it can be used with MPCP. Erasing is possible. I need to build some adapters to support more memories and downloads datasheets aswell.
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TmEE co.(TM)
Very interested
Joined: 05 Dec 2006
Posts: 1947
Location: Estonia, Mahtra village
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| Posted: Sat Dec 09, 2006 11:25 am Post subject: MPCP docs are finally finished !!! |
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I have finally finished the docs of MPCP !!! They're available on my site (same place, MD section). Any comments are welcome.
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