Does Anyone Own a Gundhara PCB?

[djsheep]

Option 1, please.

Caved in and copped a donor.

Co-signing option 1, if Rezon works.

I think down the line perhaps options 2 or 3 could be released as a “deluxe” option if you have the drive, but you’ve got the “meat and potatoes” of the system sorted out methinks.

Case in point, I will never play Where’s Wally on the System 18 multi. Ever. I guess it’s nice that it’s on there. But I will never play that.

FWIW, what donor were you having issues with Rezon running on @twistedsymphony

 

[twistedsymphony]

FWIW, what donor were you having issues with Rezon running on @twistedsymphony

Zombie Raid. It fails to boot in a way that seems like a ram address error. So my suspension is that it doesn't play nice with the extra ram. It shouldn't be an issue to work around on a multi but I've got to confirm that's actually the issue first.

 

[waiwainl]

So here are the 3 options I'm faced with:
1. move forward and finish up the hardware design as is and release as an 8-in-1 (probably could be released this year)
2. release the hardware with a few extra empty slots empty (probably could be released this year but will likely be about $80 more expensive) and hope that I or others can expand the list to 12 or 13 later

Let me know what option people think is best.

I would be super happy with Option 1.
Option 2 would be great, because Sokonuke Taisen Game is awesome (and well worth the extra $80)
Sign me up (got a Zing Zing Zip board waiting for this)

 

[AlxUnderBase]

I don't think you'll ever see a multi on Seta Gen 1 or 2, the hardware isn't at all "Standardized" enough for that.

That's right ! Who said "never say never" ?

 

[twistedsymphony]

That's right ! Who said "never say never" ?

While still technically true that the whole system multi isn't possible but I've learned enough of it's secrets to make some form of multi possible Glad I was wrong about that.

 

[onekei]

I'm down for option 2. Have a zombie raid donor ready to go!

 

[RepairGuy95]

A thought that recently occured to me is to leave spots on the multi for future expansion.
That way it can be added if wanted.
That pleases option 1, option 2, and option 3 people.

 

[parodius]

Sorry I'm a bit late to the party.
I couldn't find any definitive info about potential compatible donor PCBs in your big post about a potential multi besides Zombie Raid, people are mentioning Zing Zing Zip, anything else?

 

[twistedsymphony]

Sorry I'm a bit late to the party.
I couldn't find any definitive info about potential compatible donor PCBs in your big post about a potential multi besides Zombie Raid, people are mentioning Zing Zing Zip, anything else?

Here

Confirmed Donor Boards:

• PO-078A (used by Blandia)
• PO-079A (used by Eight Forces and Zing Zing Zip)
• PO-122A (used by Zombie Raid)

Potential Donor Boards (theorize they'd work but have not confirmed)

• PO-122B (used by Zombie Raid) <- a slight variation on the other board, I have one to test/confirm
• PO-092A (used by Daioh)
• PO-072-2 (used by Prototypes) <- doubt anyone will use this due to rarity
• PO-120A (used by Gundhra) <- doubt anyone will use this due to rarity
• 93111A (used by War of Aero and JJ Squawkers) <- doubt anyone will use this due to rarity

 

[parodius]

Excellent, thanks. Sorry I missed your post.
I’m all set then, option 2 ideally for me.

 

[twistedsymphony]

A thought that recently occured to me is to leave spots on the multi for future expansion.

I mean, that's essentially what I'm proposing in option 2, it would release with 9 or so games but have 16 slots.

 

[AlxUnderBase]

Confirmed Donor Boards:

• PO-079A (used by Eight Forces and Zing Zing Zip)

So nice to have ! Very happy and thankful for the opportunity

View: https://youtube.com/shorts/0UaHnIiR6_U?feature=share

 

[JohnRambo'sKnife]

I'm still hunting.

 

[twistedsymphony]

I've been working on this a bit recently.

Got to the point where I needed to map out the Kick Connector for Daioh and decided to design a small IO PCB to test and confirm the circuit.

Does anyone own an original Daioh who would be willing to check some things with a multimeter for me?

If anyone has a Daioh Conversion and would like to add a kick connector to it, this board should take care of that and I'm sure I'll have to make a few of them for minimum production.

 

[plasticfactory]

PM what you need and I can check Sunday or Monday.

 

[XtraSmiley]

I can break out the proto if needed as well.

 

[ShootTheCore]

I'm late to the party, but please put me down for one unit and I'll see if I can track down a donor.

 

[JohnRambo'sKnife]

Finally have a donor I am ok with sacrificing. Must admit that I already have all the games I want from this board type but would be cool to try out Eight Forces and just have everything on one board.

Respectfully anxious to see how this progresses.

 

[RepairGuy95]

Bump for updates.

 

[twistedsymphony]

Bump for updates.

Making slow progress, with the holiday I was able to spend a good chunk of time on this yesterday. To be honest I spent a lot of time on other projects such as the LCD selector and trying to get Cadash to work on my Asuka Multi that stole time away from this project. the only reason I've made progress here is because I decided to step away from those other projects to focus on this one for a bit.

Overall this project has been a lot more complicated than I originally anticipated With the complexity I taught myself how to use Hierarchical pages in KiCAD to keep it all organized. Where as my other multis the entire schematics could fit on a single page for this one I'm already up to 6-pages.

The current design utilizes DS's ROM modules similar to his System 1 and 2 multis in order to get 16 game lots on this hardware. I've got a basic layout done in terms of how the multi will connect to the donor PCB. It will need 8 ROM modules and it's looking to be a big challenge to get all of the ROM modules to fit on nicely on the PCB