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Posted: Mon Dec 26, 2011 6:30 am
by rkrenicki
nope, the SNES physically cannot access the rom faster than 150ns, so any capability beyond that will go unused.

Posted: Wed Dec 28, 2011 5:24 pm
by dranore
Here's a side question:

Has anyone identified a battery clip that actually fits inside the cart?

I've ordered some well designed ones, but they're much too tall! Gonna look at a local place and hope for the best, otherwise I'm going to have to go to town with a Dremel.

Repro carts

Posted: Thu Dec 29, 2011 5:44 pm
by pichichi010
Hey guys, Im new here, I just been researching because I want to find or reproduce my own Snes Game, I been trying to find a manufacture for SNES compatible PCB boards ready fro EPROM soldering. I am in the process in developing my own SNES game. I even Contacted NINTENDO for this but they said that I have to be a registered gaming company to request licensing.

If you guys have any information about this, I will greatly appreciate it.


Thanks!

PM about this topic is ok

Posted: Thu Dec 29, 2011 7:30 pm
by MottZilla
Develop your SNES game. Once it's ready for production, finding someone to produce carts for you will be easy. RetroUSB would be one option as they can/do produce SNES cartridges.

Posted: Fri Dec 30, 2011 5:19 pm
by dranore
Don't bother contacting Nintendo, you got a form letter. They're extremely picky about who they license, and unless you are actually an established game developer with enough money to show them (as they have capital requirements, if I remember correctly), you have no hope of being licensed. And at this point they no longer support the SNES, so even if you met their licensing requirements they would just tell you that the console isn't supported anymore.

Echoing what MottZilla said, producing the cartridge is the last of your concerns. Worry about that once you have designed, programmed, and tested a game that SNES collectors would actually want to buy.

NINTENDO

Posted: Fri Dec 30, 2011 5:26 pm
by pichichi010
yeah they seemed uninterested, but they are loosing a quite big market.

imagine if they make a Snes anniversary cart... ppl would flip out lol.

We'll see what happens with this project.

I am going to try to finance it by selling a Facebook app that me and a friend developed for facebook pages.

Posted: Fri Dec 30, 2011 5:30 pm
by tepples
Nintendo is willing to lose markets that it thinks have a low return on investment. Compare all the shovelware on the consoles in the early 1980s when the North American console gaming market went into a recession. Nintendo's policies are a direct response to this so-called "great crash".

manufacturing

Posted: Fri Dec 30, 2011 5:35 pm
by pichichi010
but still with today's technology, manufacturing a new snes cart will be really cheap!

Re: manufacturing

Posted: Fri Dec 30, 2011 6:00 pm
by 3gengames
pichichi010 wrote:but still with today's technology, manufacturing a new snes cart will be really cheap!
After startup costs and about 5000 games later, maybe it'll be cheap after that.

Posted: Fri Dec 30, 2011 6:55 pm
by dranore
While I chimed in to give my two cents, can you please move this discussion to another thread? This is really off topic unless you're considering making the carts yourself. Cartmodding is really not at all related to the business of manufacturing new carts for commercial production.
dranore wrote:Here's a side question:

Has anyone identified a battery clip that actually fits inside the cart?

Posted: Sat Dec 31, 2011 3:15 am
by dranore
I picked one up at my local Fry's and it works really well actually! It does require a little Dremel work to get it nice-nice, but the finished product is good.

Philmore plastic battery holder

The modifications that are needed:
  • - The terminals need to be pulled out before working with the clip. They come out without much fuss with a pair of pliers. Just be sure not to twist the metal such that won't fit back in the clip correctly and make good contact with the cell battery.
    - It has three plastic feet that can be cut off very easily. There are also two larger plastic feet which support the terminals. They also need to be cut off. Again easy to do with a standard cutoff disc.
    - You need to bore into the top clip support at a 45 degree angle. The pins do not line up with the PCB's original holes. By doing this you can bend the clip at an angle and get both clips to line up *perfectly*. Doing this makes it feel loose, but it is quite secure once soldered in place!
    - Finally, the lead that goes in the bottom of the clip needs to be elongated by trimming down the sides and thereby making a longer looking lead. By removing the support feet, you end up with a little extra metal that won't fit through the PCB's hole. Sounds messy, but it only takes a microt.
The end result is a tidy looking clip with a battery that can easily be replaced that fits inside the standard SNES cart without any pressure on the PCB or the sides of the cart. It's very svelte. I have been taking lots of photos of everything I've been doing, so I'll post those up with all of my documentation of this process once I'm finished.

I've got another clip that I've seen someone else use. But it's much too tall to work without cutting the top plastic down considerably as well as altering the leads. It's do able, but if you saw the clip up close it's a lot more work to alter than the other one I found. It also doesn't look so nice. :\

Still waiting on the DorkbotPDX PCB's for the Willem adapter. Laen said they should be shipped out on Saturday or Monday with profuse apologies for the much elongated order time. Then I should be ready to get my chip programmin' on!

Posted: Mon Jan 02, 2012 5:42 am
by dranore
Picked up an NHL 95 to make into a test cartridge, since I don't want to have to resolder chips every time I want to test. So yeah... nothing as fancy as what you all have going on, just a cart with a dip socket. :P

Posted: Mon Jan 02, 2012 6:44 am
by rkrenicki
Those are very useful.. Mine was an NHL 97 however. I test every TSOP chip I make using this board.

Image

Posted: Mon Jan 02, 2012 8:52 am
by dranore
I have a NHL 97 too, but it's PCB is in better shape; so I'm using that one for one of the cart's I'm making.

Posted: Sun Jan 08, 2012 4:36 am
by dranore
I got the adapters and got everything wired up, but the chip isn't giving me an ID yet. :\

I'm going to solder another 29F032 to an adapter board in an effort to isolate the problem. Checking all the leads on the adapter seems to work okay, though it might be the ZIF socket I installed in the adapter not correctly contacting all of the pins. Hard to test.

rkrenicki: Firstly, thanks again for sharing the PCB design. I have some thoughts about the adapter board design... maybe make the board a tad longer? A ZAF socket and the A19-21 pins at the end are a ridiculously tight fit! The holes were a good size this time for sure though. Might also be nice to have holes for the extra 4 legs on a 40 pin ZIF even if they don't actually need to be soldered. Bending them out of the way is okay I guess, but it'd be tidier just having a few more holes on a slightly longer board. The boards are cheap enough that adding another half inch or so isn't really going to cause any significant boost in their price.