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INFO for building mega drive / snes carts

Devil Ken Masters - Aug 27, 2001

		Devil Ken Masters		Aug 27, 2001
			I think that somewhere in the Net MUST BE information about replacing rom in a cartdrige with eeproms and programming them to play a downloaded rom into the console... if somebody knows info about, I'm really interested (SNES, MEGA DRIVE basically ^^)

		3rdman		Aug 27, 2001
			http://www.litespeedcomputers.com/sx....32 Go there...That should help you out.

		Devil Ken Masters		Aug 27, 2001
			Thanks ^_^

		IceDigger		Aug 28, 2001
			you can replace the eprom in some carts with a selfburnt one, but that doesn't work with games bigger than 8 mbit anymore, I think.

		ExCyber		Sep 2, 2001
			The SMSReader site is very nice, in that it walks you through constructing the unit. More importantly, it does a pretty good job of explaining what all the components are for. Unfortunately, there's no Genesis adapter for it, though I remember hearing at one point that Mike G was working on one. If you're interested in coming up with a Genesis or SNES design yourself, I suggest looking through the Genesis hardware internals doc on Charles MacDonald's site... for a mostly complete Genesis cartridge pinout with signal descriptions, and the SNESKart document... for info on the SNES cartridge interface. For info on flash memory chips, you can look at: http://www.amd.com/products/nvd/nvd.html... http://developer.intel.com... http://www.toshiba.com/taec/... (I'm not sure how much longer this URL will be valid, they appear to be moving it) http://www.micron.com... http://www.samsungsemi.com Toshiba, Micron, and Samsung also make DRAM, which can't interface directly with SNES/Genesis, and SRAM, which is somewhat easier to interface than flash, but substantially more expensive. I'm working on designing a flash-based Genesis cartridge, but I don't know when that will really be done, nor have I decided whether or not I'm going to release the design files to build it (I probably will, but I haven't really made the decision yet and it's been bugging me a bit). If you have any questions, I'll try to answer them, but I'm not to the point where I can actually build a prototype yet (due to lack of equipment, which I plan to get soon), so I don't have any personally tested info about interfacing with Genesis. Hope this helps.