Making a 512k scc mapper Cartridge

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By ericb59

Paladin (889)

ericb59's picture

03-08-2013, 15:51

Hello,
I recently discovered (better late than never!) That I could transform a disk to a Rom with DSK2ROM.
So the idea came to me, it will be great to realized my games in cartridge format.
A 512K scc Mapper is required.
After much research I understood that the best solution is to use a flash memory and a CPLD to emulate the scc mapper.
Unfortunately I haven't found the VHDL code required for this operation, or tutorial to do that.
I don't have the knowledge to do this VHDL myself. But I think I can perform the cartridge assembly.
If someone could help me with this VHDL code that allow me to do it myself
that would be fantastic, and an opportunity for me to realize an over 30 years dream...

thanks for any help and message

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By Manuel

Ascended (15952)

Manuel's picture

03-08-2013, 16:38

But isn't the MegaFlashROM SCC exactly what you are talking about?

By ericb59

Paladin (889)

ericb59's picture

03-08-2013, 17:15

yes sort of Megaflashrom scc, but i don't need scc sound, only scc mapper.
I would like to make it myself for the fun and because it will be cheaper.

By ericb59

Paladin (889)

ericb59's picture

05-08-2013, 17:31

well... nobody ?

By Bastiaan

Champion (332)

Bastiaan's picture

05-08-2013, 21:53

google
ese scc 512 (japanese)
scc sd/mmc (korean)
hanso msx diy (various)

By janghang

Expert (115)

janghang's picture

05-08-2013, 22:03

Sharksym's sd/mmc cartridge is based on the scc mapper. it can also run disk games. is that what you need?

By mars2000you

Enlighted (5524)

mars2000you's picture

05-08-2013, 22:06

Btw, Evil http://gomsx.net/hansotten/ is again in a black hole. I guess it's normal as it happens every year and as mirror sites are not tolerated by the webmaster, we must again enjoy this black hole !

By ericb59

Paladin (889)

ericb59's picture

05-08-2013, 22:26

@janghang
i need a schematic and instructions, and vhdl code of a scc mapper cartridge. to build it myself.
if it's a a sd/mmc why not !
where can i have information about this cartridge ?

By ericb59

Paladin (889)

ericb59's picture

05-08-2013, 22:52

For other retrogaming machines i easily found tutorials step by step on how to create a cartridge for homebrew games...
for coleco, atari2600, master system ... all have great tutorials.
is it impossible to have this on msx ?

By janghang

Expert (115)

janghang's picture

06-08-2013, 06:47

Hey ericb59,

Here it is: http://pds15.egloos.com/pds/200910/19/40/MMCSD_Drive_Manual_... . you can find some schematic in this manual.
There already exists an FPGA version (it was not perfect, though) of this cartridge. I don't remember who made the vhdl version

ericb59 wrote:

@janghang
i need a schematic and instructions, and vhdl code of a scc mapper cartridge. to build it myself.
if it's a a sd/mmc why not !
where can i have information about this cartridge ?

By ericb59

Paladin (889)

ericb59's picture

06-08-2013, 08:10

@janghang
Thank you. unfortunately this schematic don't realy fit my needs, because it use a real Konami SCC chip to build the scc mapper. I don't want to destroy real cartridge.
I will try to contact the author for the CPLD version.

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