Included with a random lot of dev gear - any ideas where this board fits in? What system specifically it was used for? According to the 32X Dev hardware manual "Use with Mega CD 837-8828-CD Connects to the 68000 CPU socket of the Mega-CD interface board and includes an available 64 pin socket adapter." This doesn't appear to have the -CD prefix? Label says "MD all chk"
That connector at the bottom looks like the 68000 interface on the original SNASM, which plugs into the 68k in-chip emu port to replace the internal CPU. That board has a 68k of its own, perhaps it's a CPU + ROM with some testing software to poke the machine's addresses checking for sanity? I'll dig out my 32X dev board later and see if I can figure out how it might fit together. It's also a hell of a find, these little niche tools are as rare as they come!
My 32X board only seems to have SH2 connectors, and the Cross Products MegaCD doesn't have a 68000 port, so it must require a different kit. Was there an official SEGA kit for the MegaCD? I found it in the manual (apologies for the lame photo, I don't have a working scanner):
Nice! I've never seen a picture of this piece of hardware. I can explain a few more things about it. First of all, it's missing a piece. There's an adapter that's supposed to plug into that connector on the bottom of the board, which converts to a 64-pin layout so that you can plug it directly into a socket designed for the M68000 processor itself. The good news is, it would be easy to build an adapter, since you can figure out the pinout from the M68000 on the board itself. As for what it does, it simply provides a M68000 processor on a board, with an extra bit of monitoring hardware that detects when the processor hangs due to an active bus operation not completing due to DTACK not being asserted. When this occurs, the extra hardware reads the address lines and displays the target address on the display. As I understand it, yes, but the Cross Products kit replaced it quickly as the preferred system and basically became the official devkit. It's worth noting though that there's an official devkit for the Mega Drive, which I've never seen a picture of and has never surfaced among collectors as far as I can tell. It's called the "Super Mega Drive" or "Super Target", and there are a few references to it in the scanned devkit docs that are floating around. Teancum has a 32 page document describing it, and it is significantly different to the retail console, with a lot of extra features for development and debugging. The original MegaCD devkit was most likely an addon to this unit.
Thanks for all the useful information, the person who owns this believes he has more Dev. hardware "somewhere" in his garage full of boxes so I'm hoping he has more related items. Its all ex a UK Studio. The same collection included this interesting Krisalis Software Master System Dev Unit that I recently posted about on smspower. http://www.smspower.org/forums/viewtopic.php?t=15019
That's lovely!!!!! Is that the original adapter or homemade? Is there a way to easily tell if its the -CD -MD version? -MD = 32x -CD = SegaCD? Headcrabs post mentions they have different "gate arrays"
I have two Genesises (Genesii? Genesis? Genesese?) with the socket mounted 68000s. Still looking for an ICE for it though http://www.assemblergames.com/forum...at-did-they-do-to-it&highlight=cross+products
Bullshit. Maybe you'd better put a link to my site instead of using my images and giving false information This is not an adapter for the board (address checker), it's an adapter for using a regular cpu in this modded Genesis. I made it by my own. You need a different adapter, such as seen in the second image. Some pictures from may 2011: Some information and videos (german / may 2011): www.konsolenhal.de/?p=244 www.konsolenhal.de/?p=251 www.konsolenhal.de/?p=309 www.konsolenhal.de/?p=386 BTW: here is my old thread http://www.assemblergames.com/forums...28-Unknown-PCB
I agree with you that Ã've shown the 'wrong' adapter, but it would be clear for anyone needing such an adapter that the pin gender should be reversed.
I'll make it easy for you - Mega Drives! You're welcome to link to your site, but perhaps a nicer way of putting it would be something along the lines of "Actually, that's not quite correct. Take a look at my site for an explanation."
There's no rules on the forums that say people have to quote or label the source images. If you don't want people stealing your images around the internet, that's what watermarking is for. Please don't abuse the report button.
No I didn't. Smileys are not an excuse to swear and abuse people. It's not sarcastic, it's offensive. Be nice. If you don't want your images hotlinked, ask nicely that they be removed. We're not going to close down a thread with useful information just because you don't like someone using your images in one post. However, we're happy to switch the images for a link to your site if you: a) ask nicely b) link us to the site. From what I can see, you've edited out the links because they don't work any more - it makes it hard for someone to attribute your site, doesn't it? As Hex said, if you have an issue with other people using your images, it's best to watermark them. I totally appreciate that you don't want your images used - we could do something about that if you ask nicely. Taking down the posts on your website and removing your old thread is a bit petty, though. Don't you want to share information? You came to us originally, asking what it was. Why take that attitude now? In fact, ASSEMbler asked you to take high-resolution pictures to share with the community and you agreed. Likewise, a video. I notice you've taken that down, too. The majority of your posts here seem to have been asking what something was that you bought. It's a shame, once we gave you the answer, you have to turn around and be rude and not want to share information or pictures. If you had a better attitude and put your request more politely, you'd have found us more receptive and willing to help. Reporting it without giving the source of the images wasn't that helpful. Or should I call you names for it, then put a winky face... thereby making the name-calling OK because it's "just a joke"?
My apology for the word 'bullshit'. Please have in mind that English is not my native language and the use of stylistic nuances is not easy for me. Would I write this in one of my other forums that would be interpreted differently. Nothing is as bad as it looks. It's in progress. I have to. I have to watermark my images and i will build a new post with further information on my side. But it's not my fault that hotlinked images are not shown anymore. As i wrote: i'm watermarking my images. The videos are moving from myvideo to youtube. All my videos are temporarly down, not just the few here. Maybe it would be better if you ask in advance before you would make such guesses. The content will be back, but it will take some time.
