Strange cart on eBay

Post by **KanedaFr** » Thu Jul 15, 2010 7:33 am

What do you thing about this one ?

http://cgi.ebay.com/Sega-Genesis-16-Bit ... 20b2196207

ElBarto · Post by **ElBarto** » Thu Jul 15, 2010 7:37 am

The case looks weird but the pcb looks like an EA one.
But I wouldn't buy it cause the eprom are not UV protected

Graz · Post by **Graz** » Thu Jul 15, 2010 12:16 pm

ElBarto wrote:I wouldn't buy it cause the eprom are not UV protected

If the cart's been sealed the whole time, then it should be fine. The poster says that it has a game on it, so there's probably not too much data loss.

koilazka · Post by **koilazka** » Thu Jul 15, 2010 3:42 pm

No chance it being an old dev cart.. Game with wrong label, UV erase?

I dont know these things, just wondering..

I would buy it if i had an ebay account, looks funny.. Wouldnt pay too much for it though

TmEE co.(TM) · Post by **TmEE co.(TM)** » Thu Jul 15, 2010 9:08 pm

This is most definitely some pirate game cart.

If it was something made by Sega it would look more like that stuff here :
http://www.fileden.com/files/2008/4/21/ ... Sstuff.jpg
(I'll be making ROMs available soon, and some schematics too ^^)

Nemesis · Post by **Nemesis** » Fri Jul 16, 2010 3:47 am

TmEE co.(TM) wrote:This is most definitely some pirate game cart.

If it was something made by Sega it would look more like that stuff here :
http://www.fileden.com/files/2008/4/21/ ... Sstuff.jpg
(I'll be making ROMs available soon, and some schematics too ^^)

Is that a Mega Drive control port to PC parallel port interface? That's pretty cool, I didn't know Sega made anything like that for their developers.

I picked up one nice little nugget awhile back. It's a prototype for Virtua Racing. One day I'm planning to load my own code onto the cart and run tests on the SVP, to try and fully document the chip.

bastien · Post by **bastien** » Sat Jul 17, 2010 7:06 am

they are another stange cart on ebay.

look this famicom cartridge:

http://cgi.ebay.fr/ws/eBayISAPI.dll?Vie ... :MESELX:IT

TmEE co.(TM) · Post by **TmEE co.(TM)** » Sat Jul 17, 2010 2:13 pm

Nemesis wrote:Is that a Mega Drive control port to PC parallel port interface? That's pretty cool, I didn't know Sega made anything like that for their developers.

I picked up one nice little nugget awhile back. It's a prototype for Virtua Racing. One day I'm planning to load my own code onto the cart and run tests on the SVP, to try and fully document the chip.

Yeap... called Sega/Genesis Loader Board. I have not yet finished the schematic of it, but it seems inferior to the simple Mask of Destiny's transfer cable... latter requires bidirectional LPT ports though, Loader not.

Most tools Sega had probably used PC comm link. the Sega Art Tool and sound Tool cartridges both use the comms board, aswell as GEMS.
The ROMs are here : http://www.hidden-palace.org/?updates/c/34

And I wish you luck with SVP ^^

freezedream · Post by **freezedream** » Wed Jul 21, 2010 4:57 am

Yeah, I was going to say homebrew pirate cart. ARRrrrrrr!

Also, nice bit of kit you've got there TmEE!

Charles MacDonald · Post by **Charles MacDonald** » Wed Jul 21, 2010 10:14 pm

I picked up one nice little nugget awhile back. It's a prototype for Virtua Racing. One day I'm planning to load my own code onto the cart and run tests on the SVP, to try and fully document the chip.

Whoa! Got any pictures or scans of the PCB?

Are there some missing elements from the current SVP emulation that aren't worked out yet?

I think some features that were discussed on the segadev mailing list back when are used only in the test mode and not by the game, so maybe they aren't critical to implement.

8bitwizard · Post by **8bitwizard** » Sun Jul 25, 2010 4:11 pm

Definitely a pirate cart.

Nemesis · Post by **Nemesis** » Mon Jul 26, 2010 5:26 am

Charles MacDonald wrote:
I picked up one nice little nugget awhile back. It's a prototype for Virtua Racing. One day I'm planning to load my own code onto the cart and run tests on the SVP, to try and fully document the chip.
Whoa! Got any pictures or scans of the PCB?

Are there some missing elements from the current SVP emulation that aren't worked out yet?

I think some features that were discussed on the segadev mailing list back when are used only in the test mode and not by the game, so maybe they aren't critical to implement.

I haven't looked too much at it to be honest. I have it packed away somewhere, but I'll try and dig it up and take some pictures. I did dump the ROM, and it matches the (obviously misnamed) current "Virtua Racing (E) [a1][h1C]" in the GoodGen set.

MintyTheCat · Post by **MintyTheCat** » Mon Mar 14, 2011 10:11 pm

Hi all,

Is there any chance we could see some good photos of these boards or perhaps a schematic please?

Thanks

Nemesis · Post by **Nemesis** » Tue Mar 15, 2011 4:06 am

Sure, I'll get my camera out and snap a few pictures. I've reorganized all my gear recently, so I know exactly where it is.

Edit: Wait, were you talking to me or TmEE? At any rate, I'll provide some pictures of the Virtua Racing prototype anyway. I'm sure some people here could be interested in it.

MintyTheCat · Post by **MintyTheCat** » Thu Mar 17, 2011 12:24 am

Nemesis wrote:Sure, I'll get my camera out and snap a few pictures. I've reorganized all my gear recently, so I know exactly where it is.

Edit: Wait, were you talking to me or TmEE? At any rate, I'll provide some pictures of the Virtua Racing prototype anyway. I'm sure some people here could be interested in it.

I was talking to you Nemesis. Btw I was really happy to read your post on your VDP Research - great work.

I know many many Embedded people who would kill for a decent Logic-Analyser

Thanks