Hey there once again!! I'd like to build Earthbound cart using a PAL Hirom cart and one 27C322 chip. So first of all, would USA-NTSC version of Earthbound work on PAL cart or do I need some kind of patch or a completely different version of it?? Second, the size of rom doesn't match eprom's size. How do I solve that?? Do I need to extend it somehow?? I know that in NES games, the rom needs to me multiplied a few times until the EPROM is full, but is it also doable here?? Not to mention I don't know how to do it since the rom is 3MB when the eprom is 4MB so it needs 1MB of more data but what data??
Also, I've seen several times these schematics on this forum and I assume you also sure did, but they differ a little.... One of them tells me to connect SNES /CE to GND while the second one tells me to connect it to 74LS139....
http://www.image-share.com/upload/2605/22.jpg
http://sega4ever.power-heberg.com/tutod ... 20cart.png
So which one is correct?? Or do they all need some kind of correction?? Would you tell me how to exactly connect it?? Please for reply. Big thanks in advance for any kind of help, I'd be so grateful!!
Also, I've seen several times these schematics on this forum and I assume you also sure did, but they differ a little.... One of them tells me to connect SNES /CE to GND while the second one tells me to connect it to 74LS139....
http://www.image-share.com/upload/2605/22.jpg
http://sega4ever.power-heberg.com/tutod ... 20cart.png
So which one is correct?? Or do they all need some kind of correction?? Would you tell me how to exactly connect it?? Please for reply. Big thanks in advance for any kind of help, I'd be so grateful!!