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OpenJamma board - interest?

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tris_d:

--- Quote from: shanghaiguide on February 05, 2013, 01:47:02 am ---I do know that chipset fairly well, as I did spend a few months looking at it.
Its not quite as good as the one I'm going to use (although its fairly good for purpose).

--- End quote ---

So what exactly are you using?



--- Quote ---The ARM SoC i'm using has a lot more bells/whistles, and is the same price point, so no point going for the MIPS one imho.

--- End quote ---

What bells and whistles? You didn't even mention basic specs, like what CPU, what GPU, or how much RAM.

Can you make a video of few games showing FPS counter so we can hear and see just how good it really is?



--- Quote ---As it will be open source *legit*, the board won't have rom's shipped with it, but I'll stick compiled versions of popular emulators + a front end on there, plus setup a github repo so others can assist / improve.

--- End quote ---

What popular emulators, is there any other beside MAME4all?

emphatic:
This is very interesting. Would this be suitable for budding game programmers as well?

shanghaiguide:
@Emphatic -
If you can do SDL based stuff, then sure.

Its going to be a linux os - currently I'm running Kernel 3.4 / Debian 7,  but thats flexible.  The idea is that its open hardware, open software.  Not you get what you get, and tough.
The board will be ready to run in an Arcade Machine JAMMA setup, but also usable for others who want to play.  Again, open source, open hardware..

I'm not trying to be all things to all people, but I'm trying to ship something that I would buy myself as opposed to a closed source board that may or may not suit my needs, and can't really be changed.  I also understand that some people don't really care, they just want something that can be plugged in and just work.  It will do that also.
(Although, you'll need to supply your _own_ games on SD). 

To address some of tris_d's questions:

It will be based off a single core  Cortex-A8 cpu for the initial run, although we do have the option for dualcore later (as there is a dual core pin compatible chip available).
RAM will be 1G
Flash 4G for OS / Emulators
SD card for user space stuff (eg roms).

You'll be able to flash it with other OS's if you want, and it will have ethernet so you can update software by pressing a button.
You'll also have usb, so you can use wifi if you need to.

I'll start making some details for the site soon ( http://www.openjamma.org )

--

I've thought about 4 player adaptors - doable, but i need to see how much need there is.

I know that some people will be negative, what I'm looking for is some sort of overall feature set that we'll design the PCB to have.
Currently I know what I personally want, but I need to have a better idea of what YOU want.

If its doable, it will be done.

Lawrence / http://www.openjamma.org (hopefully Saint is ok with me sticking a link there :) )

sharpfork:
For your first release I'd consider keeping your features simple: a "legit"  XX in 1 board *but* with better emulation. I'd match the features of the xx boards and maybe add 1/8" stereo out for computer speakers.  You have a bunch of hardware and software to manage with just that as a starting point.  If you overload the first go with too many features, you might never finish it.  Is this something you are working on solo?

Malenko:
agree, and I'd be happy to beta test, I have an array of machines, most JAMMA but some a little different (like MK2 and KI1 having the -5V, and a Galaga wired for JAMMA, and a Dynamo that has a PS that wont go above 4.9 V on the +5 lol)

I like the idea and it sounds like this project is rooted in reality instead of fantasy like some other similar projects.

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