NintendoAge http://nintendoage.com/forum/ -Sqooner Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-27T15:31:59 -05.00 Lugia2009 25 Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-27T12:33:01 -05.00 Lugia2009 25 Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-27T11:46:44 -05.00 Lugia2009 25
http://html.alldatasheet.com/html-pdf/104964/MICRON/MT28F016S5VG-9/223/1/MT28F016S5VG-9.html
http://html.alldatasheet.com/html-pdf/92563/AMD/AM29F032B/313/6/AM29F032B.html

Alternatively, I found these which should work: http://www.ebay.co.uk/itm/E28F016S5-85-INTEL-TSOP-IC-/271000486661?pt=LH_DefaultDomain_0&hash=item3f18e34305 ]]> Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-27T10:19:15 -05.00 Lugia2009 25
I think epoxy removal requires chemicals and careful cleaning. I'm not familiar with the process. ]]> Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-27T08:49:33 -05.00 Lugia2009 25 Originally posted by: Lincoln

Originally posted by: Lugia2009

Originally posted by: Lincoln

 
(Sorry, I didn't put the games in the right order, that was the Naruto cart you looked at. I fixed it.)
So it just needs the same pinout, I thought it had to be the exact same chip. Okay, that's good.
But what about the other games, king of fighters only has 2 RAM chips, where would the ROM be stored on that game?
 

I guess the  KoF rom would have to be under the epoxy, by process of elimination. If I'm reading datasheets right, LC3664BML-10 is 8 KByte ram and TC55328J-25 is 32 KByte ram. I would guess the first is chr-ram, since I've never seen more than 8K for chr-ram. I can't imagine 32K is enough space for the whole rom. so the second chip is probably wram. That leaves the space under the epoxy. Assuming all that, the KoF would be a difficult donor. Not that it can't be done I guess, but that's over my head.

I was afraid of that. How would I go about removing the epoxy without damaging anything?
 


]]> Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-27T08:47:44 -05.00 Lugia2009 25 Originally posted by: DxS

Using the Naruto PCB would probably be your best bet. It should be as simple as desoldering the MT28F016S5VG and reprogramming it. You could also get a compatible chip (the AM29F016B-90E4C should work) and just swap the two.
I couldn't find that exact chip on eBay, but would any 16 Megabit (2 M x 8-Bit) CMOS 5.0 Volt-only Uniform Sector Flash Memory chip work?

Also, what type of programmer would I need? I was looking at this one: http://www.ebay.com/itm/TOP853-USB-Universal-Programmer-12-MHz-s-40-Pin-Socket-EPROM-MCU-GAL-PIC-PLCC-/150763161122?pt=LH_DefaultDomain_0&hash=item231a2f4622

And this one: http://www.ebay.com/itm/170945941471?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649

]]> Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-27T00:28:11 -05.00 Lugia2009 25 Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-26T22:26:05 -05.00 Lugia2009 25 Originally posted by: Lugia2009

Originally posted by: Lincoln

 
(Sorry, I didn't put the games in the right order, that was the Naruto cart you looked at. I fixed it.)
So it just needs the same pinout, I thought it had to be the exact same chip. Okay, that's good.
But what about the other games, king of fighters only has 2 RAM chips, where would the ROM be stored on that game?
 
I guess the  KoF rom would have to be under the epoxy, by process of elimination. If I'm reading datasheets right, LC3664BML-10 is 8 KByte ram and TC55328J-25 is 32 KByte ram. I would guess the first is chr-ram, since I've never seen more than 8K for chr-ram. I can't imagine 32K is enough space for the whole rom. so the second chip is probably wram. That leaves the space under the epoxy. Assuming all that, the KoF would be a difficult donor. Not that it can't be done I guess, but that's over my head.

for samurai spirits I think the smaller pcb with the epoxy blob is the ROM . the blank chip on the front looks like it's another RAM chip. You would probably have to trace out the board to determine the pinout from that.

and while I'm thinking through all of this, it should be possible to use 2x 27C080 eproms in place of the flash chip for the rom. I think you would use the highest address line to enable one chip or the othe at a time. I've never done that but it's a thought.

if you haven't done so already I would recommend asking over at nesdev. those guys are wizards and they should have better info than some bum repro maker (me).

]]> Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-26T22:00:58 -05.00 Lugia2009 25 Originally posted by: Lincoln

assuming the mapper hardware is actually the same, I would start with the KoF cart, since the chips are readily identifiable. one of the ram chips is for saving, the other is chr-ram. those can both stay as they are both used for ff7.

You're going to need a 16 mb flash chip to write the rom to. You'll want to compare pinouts for the MT28F016S5VG on the KoF cart and whatever flash chip you can round up. If you find one with compatible pinout, you can desolder the existing chip and put the new one down. if the pinouts are different you may have to rewire. you might be able to get away with just cutting power to the old chip to disable it and installing the new chip over top of it.

I don't have any experience with flash chips but it might even be possible to reprogram the existing flash chip. You would need to get it off the board, or somehow rig it up to a programmer. (Sorry, I didn't put the games in the right order, that was the Naruto cart you looked at. I fixed it.)
So it just needs the same pinout, I thought it had to be the exact same chip. Okay, that's good.
But what about the other games, king of fighters only has 2 RAM chips, where would the ROM be stored on that game?

]]> Final Fantasy VII NES reproduction cart help. http://nintendoage.com/forum/messageview.cfm?catid=22&threadid=90042 2012-11-26T21:57:41 -05.00 Lugia2009 25 Originally posted by: takeshi

Originally posted by: Moothead2

Originally posted by: takeshi

might wanna wait for the FF7 project team to complete the new game too before flashing a whole new cart, least I would?


He IS the project team .


oh ya?
Yep, that's me

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