EPROMs & FlashROMs Question

So I'm a bit confused still, does anyone have a good place to get a DIP (even if through an adapter) for SNES that is 32Mbits and 8-bit? The French site I'm not sure will help much being that I don't speak that. If anyone knows though, do they sell you the adapter they designed? You don't have to make it? The other thing would be would I have to solder the memory onto the adapter myself then?

I really just haven't see any real alternative yet to buying 8mbit 8bit eproms and doing the mess to wire them all together.

Would whatever you have to do to use the 27C322 (16bit) with the 8bit configuration of the SNES be particularly difficult or expensive?

I could probably do the multiple 8mbit roms it's just that when you have a 32M game you can't seem to solder the roms all into the socket which seems annoying to me. Although I've heard some games actually have two ROM sockets in which case I guess you could do things a bit easier.

So really what are the options for 32mbit SNES carts? I'd like to build a few games which are almost all 32mbit.

 

Hi Mottzilla,

Did you find out anything on this? I also found out about the Tsop to DIP adapter the french guy designed. It's pretty neat! Do you know if they sell them? There are some detailed pictures of the adapter available on the french site, and some schematics (http://nintendoallstars.w.interia.pl/romlab/tsop2snes.htm). Does anyone know where/how to order a couple of those pcbs, like from some Chinese manufacturer or something?

 

I'll have some 29f032 to dip to sell very soon from here in the US. I've got almost 50 made (with the flash soldered on), and I'm just kinda working out my setup to program and verify them. I assume I'm going to have to program them before I ship them out. I'll put something in the marketplace soon.

I actually started before I heard about the french guys (but of course we probably both stole the idea from nintendoallstars).

I don't have any extra pcb's. If I do another batch I could order extra pcbs.

 

Hi Michael,

Does your adapter have dip pins, or do you still have to connect wires from the SNES pcb to the pads on the adapter's pcb? If it has pins, can you just put the adapter into a programmer and program it as if it were an eprom?

And does it require any rewiring? I've been told the adapter of the french guy requires one wire. Did you make any changes to the schematics on the romlab website? Does it work with all SNES pcb's (lorom/hirom)?

I realize that I asked quite some questions, but I hope you're willing to answer them.

 

Yes, dip pins are soldered onto the board. Programming it isn't that simple, I'll provide more info soon. Really it depends on how your eprom programmer programs 29f032 (it's 40 pin, sometimes it's easier to see the tsop adapter for your programmer so you know what is needed to make an adapter for this if that makes sense). I personally feel this is a better solution for repros, not for a reprogrammable cart.

I don't remember if I made any changes to the schematics or not. If so, they were minor. lorom/hirom are the same pinout and don't matter (but without making changes, you don't get lorom/hirom off the same game circuit board). I think they only needed the extra wire for onboard programming .