MiniMig with AGA

[kolla]

Well, if this ain't porn, I don't know what is

@yaqube
How about a new youtube video anytime soon? Personally I'd love to see how it works with DPaint animations and big HAM8 images. On my A1200/060 with Indivision I can edit images in HAM8 and 1024x768, but the amount of chipram quickly becomes a limiting factor. It looks really nice though, and I'd love to use DPaint more for image editing, and for animation of course.

http://amiga.nvg.org/moro/Indivision_AGA/dpaint4-1.jpg
http://amiga.nvg.org/moro/Indivision_AGA/dpaint4.png

[yaqube]

How about a new youtube video anytime soon?

I'm still thinking about a new one. But cannot promise that it will be graphics oriented.

[yaqube]

How is the TG68.C V4.0 in terms of performance on the Xilinx XC3S1600E?

SysInfo reports 3.29 MIPS and speed 2.59 times higher than a stock A1200.

The CPU core is clocked at 14.18 MHz but it's being slowed down to 7.09 MHz whenever it wants to access memory bus (and it wants it almost all the time so only multi-cycle instructions like multiplication, division and shifts/rotations operate any faster). It will change when there is a cache implemented.

Also the CPU core has only 16-bit wide data bus so the performance could be improved in the future by implementing direct long-word transfers but it entirely depends on Tobias.

[wizard66]

Got the boards!
I'll put some pics up on http://www.fpgaarcade.com asap.

Congratulations MikeJ

Now this board's looks sexy, I hope all works out fine completing the boards, looks like you have to put on all tru hole components first.
I'm still in for one of your lovely boards (Money burns in my wallet from the start of this project).

[unknown1]

SysInfo reports 3.29 MIPS and speed 2.59 times higher than a stock A1200.

The CPU core is clocked at 14.18 MHz but it's being slowed down to 7.09 MHz whenever it wants to access memory bus (and it wants it almost all the time so only multi-cycle instructions like multiplication, division and shifts/rotations operate any faster). It will change when there is a cache implemented.

Also the CPU core has only 16-bit wide data bus so the performance could be improved in the future by implementing direct long-word transfers but it entirely depends on Tobias.

I think this implementing cache and the wide data bus is more important that dual cores at the moment. Finish the job on what we have before starting a MAJOR job like dual cores.

Can't wait to see it available.

Makes me want to get the A1200 out of storage and working again, hopefully it hasn't sustained too much water damage when the roof caved and was repaired! Of course I would have to hide it in the barn, no more computers in the house! the wife says!

[RMK305]

Mike,

Just noticed the web site says a JAMMA version is in development. Would you be able to install any JAMMA ROM on this board, plug it straight into the cab or supergun and start playing the game?

[mikej]

Yes, there is a JAMMA daughter board which has finished layout. I'll get it made when I have finished tested the main board. It will let you plug the board into a the cab directly.

You will still need the "core" for the game in question as well as the ROMs. You can think of the game core as the hardware of the original board, and the ROM as the software.

Best,
Mike

[RMK305]

Ah, I was hoping that this would replace the mainboard altogether. What then is the advantage of the JAMMA board you are making as opposed to the standard JAMMA board for a game?

Thanks,

[Clyborg]

Grats Mike!!

I still want one!!

Jason

[mikej]

"Ah, I was hoping that this would replace the mainboard altogether. What then is the advantage of the JAMMA board you are making as opposed to the standard JAMMA board for a game?"

Yes, it will replace the original main board, all that is required is the Replay board and it's Jamma adapter. For example, if you want to run the pacman game you need the FPGA core which behaves like the original hardware and the ROMs which contain the software.

I'm also doing a vector output for games such a Asteroids.
Mike

[RMK305]

So each JAMMA game out there will need an FPGA core written for it to work on the hardware? Sorry for not fully grasping this first time around

[mikej]

"So each JAMMA game out there will need an FPGA core written for it to work on the hardware?"

Yes, as the FPGA core models the original hardware.
Different games which ran on the same/similar hardware can use the same core, like frogger/scramble.

MikeJ

[RMK305]

I understand. I'd be interested to see if anyone writes cores for the likes of the Simpsons or Robocop.

[mikej]

I've posted a few more pictures now the boards are fully assembled.
MikeJ

[Lizard]

Very nice, thanks for the update.
Can't wait to order one of these boards.

[mikej]

Looking good so far. Board is powered up, all supplies working well.
FPGA configured over JTAG and running so clocks are working.
Next step is to configure the ARM but I need to find my micro-usb cable for that first...
/MikeJ