флеш картридж для game boy

AntonioND (programmer), V-Bop (me, art designer and director) and and a few more people are working on a Game Boy (classic, non color) game. We need a musician with experience in Tracker (like LSDJ). This is a serious project, AntonioND just finished engine for the game and I’m working in the story and graphics. The game will be a mix of graphic adventure and top-down perspective.

has a list of development kits and test cartridges for various 8-bit era consoles and handhelds, including Gameboy and Gameboy Color. The top picture is the so called which is a device that you plug on top of a FamiCom. It duplicates the image to the TV attached to the FamiCom to relieve the eyes of the poor developers. The bottom picture is a which is in fact just a simple EPROM cartridge.

Gameboy Wideboy development board

The scans are provided by Duo.

And maybe it’s a sign I’m getting too little sleep that I’m seeing a in the image.

Note the square boxes on the back side, of the PCB, on the opposite side of the connector that goes into the cartridge header. These were most likely used in the factory to program the cartridge initially. Notice how the “unimportant” system clock and external audio inputs are missing this box. Also note the nice rounded PCB traces. Not often you see these. Visually appealing, indeed.

MX15002UCA – Custom logic chip marked G-MMC1. The apparent function of this chip is MBC like functionality. Maybe there’s more to it too, like the ablity to offset the ROM and RAM addresses for multigames or flash memory protection? Details unknown. There’s an unused place for a crystal.

UT621024SC-70LL – 1Mbit (128 kBytes) of battery packed save RAM.

29F008ATC-14 – 8 Mbits (1 Mbyte) flash ROM. I can’t find a datasheet for it, so I’m guessing it’s a custom or OEM chip. I’ve seen Mask ROMs/OTPROMs in game cartridges also marked MX, so Nintendo probably had a contract with them.

The board contains three intergrated circuits.

The cartridge is marked DMG-MMSA-JPN and the board is marked DMG-A20-01 (I’m not sure whether the character after the 2 is a zero or upper case o – I’m actually leaning towards the latter as it appears to be a little bit wider than the following 0)

These are official Game Boy flash cartridge sold in Japan. You would go to a designated flashing station and have your cartridge flashed for a cheap price.

Official Nintendo Game Boy Flash Cartridge - Cartridge Shell

Official Nintendo Game Boy Flash Cartridge - Front side

Official Nintendo Game Boy Flash Cartridge - Back side

The original thread can now be read in its entity again on Cherryroms .

I’m not writing this post just out of personal nostalgia though. It was also on Cherryroms that neviksti first posted about his efforts to decapsulate a Game Boy CPU an extract the DMG-01 which is used to check the Nintendo logo and checksum on a cartridge before deciding to allow booting the cartridge. The function of the bootstrap was known and even however the actual memory content had never been dumped up to that point, so neviksti’s effort brought something new to the table.

CherryromsSo I got the happy news that is back up again. Once upon a time, it was known as one of the best ROM sites around. Then their ROM server crashed, but the forums remained. Then in 2006, the site died. And now apparently, it’s back again.

Previously hosted at gameboydev.org

Previously hosted at gameboydev.org | Gameboy Development