rockman no lightboard PRG only??

nintendo2600 · Post by **nintendo2600** » Sat Oct 03, 2009 8:09 pm

Hey,

So I was gonna make a copy of the translated rockman no lightboard game. Info from nintendulator says it's a MMC3 with 2megs of prg and thats it. No ram no nothing. So I burn a copy onto a chip and the game starts sure but the graphics are next to non existant.

Anyone got a proper know how to make a repro of rockman no lightboard english?

Thanks!!

MottZilla · Post by **MottZilla** » Sat Oct 03, 2009 8:55 pm

The game is 256kb PRG, 8Kb CHR-RAM. What did you do for the CHR section of the board? Just leave it empty? How could it ever display anything if something weren't there? The type of board should be TGROM.

http://www.tripoint.org/kevtris/mappers ... TGROM.html

nintendo2600 · Post by **nintendo2600** » Sat Oct 03, 2009 10:03 pm

I wired a 6264 SRAM chip to it using a funky setup I got from the docs on how to add the chr ram to a TKROM mmc3 board that puts a 28 pin ram into a 32 pin chr slot. I was using a plain jane TLROM board to make this rockman no lightboard.

Can I just pin for pin drop the the SRAM into the 28 pin slot of a TLROM as the CHR-RAM or is there more to it than that with the TGROM board differences from the TLROM I want to use?

tokumaru · Post by **tokumaru** » Sat Oct 03, 2009 11:08 pm

There is a CHR write signal the console sends to the cart when CHR-RAM is supposed to be written to. For obvious reasons, CHR-ROM games don't use that pin.

You need to connect it to your RAM chip, but the problem is that some boards don't even have the pin on the cart. It's pin number 56. Look it up on your board, if it doesn't have a pin there, you're out of luck, because creating one can be really hard. I've heard some people managed to glue a piece of thin metal there and it worked.

nintendo2600 · Post by **nintendo2600** » Sat Oct 03, 2009 11:43 pm

tokumaru wrote:There is a CHR write signal the console sends to the cart when CHR-RAM is supposed to be written to. For obvious reasons, CHR-ROM games don't use that pin.

You need to connect it to your RAM chip, but the problem is that some boards don't even have the pin on the cart. It's pin number 56. Look it up on your board, if it doesn't have a pin there, you're out of luck, because creating one can be really hard. I've heard some people managed to glue a piece of thin metal there and it worked.

I know how to add fingers to a PCB's edge connector, I've done it before. I'll give this a try and thanks to both of the above posters for your responses

coinheaven · Post by **coinheaven** » Mon Oct 05, 2009 9:59 am

i use ninja crusaders as a donor for this game:

http://www.thenesdump.com/screen%20shot ... kboard.htm

just wire the PRG just like a normal MMC3 game.

nintendo2600 · Post by **nintendo2600** » Wed Oct 07, 2009 4:05 pm

coinheaven wrote:i use ninja crusaders as a donor for this game:

http://www.thenesdump.com/screen%20shot ... kboard.htm

just wire the PRG just like a normal MMC3 game.

wicked thanks!!