nesdev.org

Lloyd Gordon wrote:If you are really stuck, I will try to find the time to take a cart apart and take pictures of the modifications.

We're really stuck. (laughs). Pictures would be fine, but even just a simple definitive pin wiring scheme like shown at ROM Labs.

It's ok. I'm just glad that others are having difficulties with MMC3 as well... those diagrams just make no sense. I am using 27c020/27c010 chips. Not flash, but I really didn't need flash since i'm trying to make my carts single game carts. I decided tonight, however, that I should REALLY make a DE...

Ok. I have attempted two MMC3 dev boards so far both to no avail. The first one I bent pins up and soldered them according to THIS site, but it didn't work. The second one just got me plain confused and I stopperd before I made a permanent mistake. Here is the board I have ready for chips and wiring...

I bought the one Tokumaru bought, and it's a decent item. The shipping was quick, and well packed.

Ok, so does this mean that the board is incapable of the sound that Gimmick is know for, or does this mean it is not able to be used at all?

Groovy. Thanks for your patience.

I get it! (took me long enough)

So would I be correct in thinking that the PRG and CHR for Moon Crystal would be 256 each, that I would remove $0000-$3FFF for the CHR and remove $4000-onward for the PRG?

So tokumaru emailed me this, and it helped me understand a bit better. As that page says, if the game uses CHR-RAM, all that follows the header is the RPG part, there is no CHR part. If you are not sure about the sizes of PRG and CHR of the game you are using, open it in an emulator like FCEUXD, NIN...

You have to copy the PRG data in an new empty file from byte $10 to byte 2^x+$10 where x is the size of the PRGROM in power of 2. From there, if there is CHRAM, just top. copy the 2^y bytes from where PRG ROM data stopped, where y is the size of your CHRROM in power of 2. Normaly, this would be the...

So I have my ROM that i'm attempting to put onto a NES cart by burning the CHR and PRG ROM onto new chips. I have everything ready... except the initial ROM separated into CHR and PRG. I am using HEX Workshop and trying to follow the instructions posted here ... but it does not tell how to save the ...

Any simple way of "faking" or converting one? I know it was used only for Gimmick, Batman, & Dodge Danpei 2...

I ask if it would be possible to convert a Batman to a 'Gimmick' given that the sound generation hardware was only in Gimmick.

Well, if you're just looking for something "temporary", then why have it look good? It's temporary. Just take some basig HTML or something, paste the system to it, and put it up until you can HOTDOG it or something. No shame in it looking bad if people visit.

Looks like regular EPROMs (27C020) by my notes for the game "Earthbound" they must be both 256k. I can't really tell since he put electrical tape over the holes and it has obscured everything. I took a scan before I closed the cart up again. http://www.freepgs.com/noriaki_kakyouin/earthbou...

Ok. I got the game "Earthbound" last night from NESReproductions and I must say that it works beautifully (and he does stellar work). </plug> But, since i'm learning how to do this same thing myself, I opened it up and compared my notes to what it actually had to see if they were consistan...

Celius wrote:Oh! The PRG chip in FF3j is 32 pins! So I could just copy the data from FF3j translated onto a 27C040 and just stick it in? That's awesome! I'll be doing that! I can't wait!

Let me know how well it goes.