A nice NeoGeo gadget to make.

Razoola · Nov 6, 2006

I have been working on something for a little while and its almost at a point now where people can build there own for testing purposes. Basically with the help of Elsemi I have made a device that can upload and download information from a NeoGeo (MVS or AES providing it has the joystick ports). This can be used for things like backing up a memory card or backupRAM to PC for example and then restore it later. it can also be used for dumping games (there are some AES version of games that are not dumped for example) and also for uploading and running homebrew demos or small games.

This is something that will eventually be in the Unibios but for now I will make a special bios for testing purposes. What you need to build is as follows.

The PC side software currently looks like this.

I will give people a week or so to make this cable and then I'll provide some software for testing. I know it works already but there are some things that may not work correctly (like getting the memory card data).

Raz

Razoola · Nov 6, 2006

I forgot to mention that currently on my MV-1FZ here I can get 64k of data from the MVS in about 1 minute 45 seconds.

Raz

billd420 · Nov 6, 2006

Holy CRAP Raz... you never cease to amaze.

Good stuff man, got a pic of the device assembled, or has it not been built yet?

-Bill

Xian Xi · Nov 6, 2006

I love you. :eek:

Murray · Nov 6, 2006

Good god this is awesome.

Razoola said:
I forgot to mention that currently on my MV-1FZ here I can get 64k of data from the MVS in about 1 minute 45 seconds.

Hehe, I was wondering how fast this would be. Cart dumps could take a long time.

Razoola · Nov 6, 2006

billd420 said:
Holy CRAP Raz... you never cease to amaze.

Good stuff man, got a pic of the device assembled, or has it not been built yet?

-Bill

I have one built yes and it looks like this. I actually made a connector (9pin) so I can use it not just for NeoGeo but on other HW also like CPS2 for example.

Raz

themisterfalcon · Nov 6, 2006

Looks like a Last Hope dump will come after all

werejag · Nov 6, 2006

ill build one but since i havent got a mvs or aes yet. since it died. wont help much

so a special unibios will allow bi-directional communication? or is it native? and will this allow dumping of a cart? or just memory?

i reread your post raz answered all the questions. forget them

im trying to get a new mvs before your release*/99

SpamYouToDeath · Nov 6, 2006

dubdubdub said:
Looks like a Last Hope dump will come after all

Let's see... if the dumper starts right now, we should all be playing it around Christmas! ...2007!

But back on topic... holy crap, Razoola, you're the greatest. :drool:

werejag · Nov 7, 2006

raz

im trying to understand your pinout

i can find d1-d7 but s4? s5?

http://pinouts.ru/ParallelPorts/ParallelECP_pinout.shtml

Dr. Jigglin · Nov 7, 2006

I seriously don't know how you find all this stuff out man, nice work!
If kof2001 truly is 892mbit, by my calcs it would take something like 43 hours to dump the game.

toodles · Nov 7, 2006

werejag said:
raz

im trying to understand your pinout

i can find d1-d7 but s4? s5?

http://pinouts.ru/ParallelPorts/ParallelECP_pinout.shtml

S4_Select is pin 13
S5_Paper is pin 14

Im basing this conclusion on the this pinout:
http://www.interfacebus.com/Design_Connector_Parallel_PC_Port.html
and the fact that they are the 4th and 5th pins after the D group.

werejag · Nov 7, 2006

that makes sense

i have 8 of the opicouplers coming in mail.

ill see if i have enough for a mvs soon

Razoola · Nov 7, 2006

toodles said:
S4_Select is pin 13
S5_Paper is pin 14

Im basing this conclusion on the this pinout:
http://www.interfacebus.com/Design_Connector_Parallel_PC_Port.html
and the fact that they are the 4th and 5th pins after the D group.

Its pin 12 and 13 (paper error and select in) and not 13 and 14. Also the ground I actually wired to all the ground pins though you can probably get away with wiring it to any one of the ground lines in the parallel port.

Maybe I should alter the diagram to make those parallel port lines more clear.

Raz

werejag · Nov 7, 2006

would you alter the diagram to make those parallel port lines more clear.

Razoola · Nov 7, 2006

werejag said:
would you alter the diagram to make those parallel port lines more clear.

yes, about to upload a new one now.

Raz

werejag · Nov 7, 2006

ehhehehe done yet

joking

Kunio · Nov 7, 2006

lachlan said:
I seriously don't know how you find all this stuff out man, nice work!
If kof2001 truly is 892mbit, by my calcs it would take something like 43 hours to dump the game.

I have not tested it, but dumping dreamcast cames through a coders cable to the COM-port of your PC is most likely in the same league, timewise. You only need to do it once though so as long as it works it's interesting as far as I am concerned.

werejag · Nov 8, 2006

892mbit is 111.5mb at 36.5k im geting 8.5 hrs

Dr. Jigglin · Nov 8, 2006

werejag said:
892mbit is 111.5mb at 36.5k im geting 8.5 hrs

Wait a second, 111mb is 111,000kb so..
If Raz is getting 64kb every 1.75mins

111,000kb / 64kb = 1734.375 X 1.75mins = 3035.15625mins / 60mins = 50.5859375 hours

That's probably not right but then again maths isn't on my side usually.

werejag · Nov 8, 2006

yeah your closer to how long it would take.

i made a conversion mistake

Razoola · Nov 8, 2006

Just to make it clear this will only be able to dump program ROMs and not C ROMs for example. The largest NeoGeo games have 9 Megabytes in this area.

Raz

werejag · Nov 8, 2006

artificial restriction?

Razoola · Nov 8, 2006

Yes, the 68000 simply cannot see the tile data directly, same goes for the M ans S ROMs.

werejag · Nov 8, 2006

so there is no way to tap the data stream?

A nice NeoGeo gadget to make.

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