FPGA Replay Board

[mikej]

http://www.fpgaarcade.com/common/fpgaarcade_replay_b01_dimensions.pdf

I have provided complete placement data for interested people as well. As the production board moves the SD connector a little I would wait a bit longer ...

Loads of DVI + audio to HDMI combiner boxes out there :
http://www.amazon.com/Audio-SPDIF-Toslink-Converter-Adapter/dp/B0015YYOQQ

Personally, I just use a DVI to HDMI cable (same protocol) and wire the audio with a 3.5mm jack to RCA into the TV.

I should be getting more boards finished, but I'm busy watching loads of old amiga demos on the big plasma ....
/Mike

[mikej]

Short video of it running AGA workbench at 640x480

http://www.youtube.com/watch?v=CBIAncdZdf8

(Not much daylight in Sweden at the moment, so the camera is busy focusing on the brightest thing around which is the screen)
More to come..
/MikeJ

[mikej]

Thanks.
I should say it is a joint effort between Tobias, Jakub, Dennis and I ....

[mikej]

Another one with a few demos:
http://www.youtube.com/watch?v=AKmdGUK9XcI

[mikej]

@Yacube,

Whoa yacube, now that looks very nice.
I'm happy to see you have indeed put a RTC on it :-)
What I Want to know is how you are going to get it connected to the revB boards,
Because the connectors (joy,mouse,keyboard ect.) are all dubble stacked on the revB boards.
So the connection to the expansion connector have to be very long, or are you ussing some mini cable ?
But a big hand for your disign again looks very nice.

Yes, it doesn't fit on the RevB boards. Yacube designed this as a prototype to test on the RevA board he already has - more space.
I am currently doing the layout for the RevB board  (it has a cutout for the higher connectors) so it will sit just above the DVI connector.
/Mike

[mikej]

The base board is currently starting beta testing with customers and will ramp in production in the next two months if everything goes well.
We'll need to see if expansion board works as planned, but it shouldn't be too far behind.
Best,
MikeJ

[mikej]

Can somebody explain the performance difference between the 68060 and 68EC060 - the later lacking the MMU and FPU?

EC devices are much easier to get hold of. I am guessing when using an EC device the FPU and MMU (if required) are caught by the exception handler and implemented in software?

/MikeJ

[mikej]

AlexH "MC68060RC50, with the Mask 1E41J." are the ones to go for apparently..
Overclock and run cool.
I'll make some inquries in China next time I am there, they probably have buckets of them hidden away.
/MikeJ

[mikej]

IS there a schematic for this somewhere? I would like to tak a crack at creating a case design for this. I stuck my mini-mig into an ITX case by using db9 cables and cutting a backplane out of styrene.

There are rapid manufacturing options out there. An stl file could be supplied and the end user can print out their own case.

http://www.fpgaarcade.com/common/fpgaarcade_replay_b01_dimensions.pdf

http://www.fpgaarcade.com/common/fpgaarcade_replay_b01_schematic_a2.pdf

There is an ATX power adapter I am finishing today which can be used to power on/off the power supply and feed the Replay board.
/MikeJ

[mikej]

The ARM CPU is an atmel sam7s256. It's job is to boot the FPGA, load ROM images into DRAM and sort out configuration by the OSD.
It also acts as a bridge to the SD card, pretenting to be a floppy or hard disk (or tape perhaps).

I'm working on merging my generic boot loader with Jakub's amiga extensions (such as hardfile and floppy support) but there is still some work to do,

I'm in China at the moment, so I won't be online so much.
/Mike

[mikej]

There is no "ROM" in the FPGA Amigas, the kickstart image is copied to DRAM at boot. You can split the 32MByte of memory in any way you like between RAM and ROM.
/Mike

[mikej]

I've been getting some questions about the interfaces on the Replay board.
I hope this helps :
/MikeJ

[mikej]

Well, I can answer one of the questions.
The connector is a second daughter board expansion connector which has joystick IO, audio and video on it. It allows a very small expansion board for the JAMMA output card etc. It most cases, only the big expansion connector would be used unless you want to do some funky video or audio stuff.

The CPU daughterboard is still in design, I'll comment more on that when I am sure what is possible.

I will be focusing on the softcore again soon and will update you then.

Best,
Mike

[mikej]

How many fpgaarcade boards has been sold so far?

100,000.
/Mike
(actually, there are 14 dev boards out there)

[mikej]

Well, I am building both the ARM firmware and FPGA core as well.
I am working to tidy it up, and there will be a full release which everybody can
contribute to as soon as I get there.

I have a wrapper release which contains building blocks for your own use as well.

/Mike

[mikej]

reproducible bugs are can be easily fixed usually. I have a real a1200 to play with so I can compare the blitter behaviour.
I am starting a log of known bugs, and this will eventually go up on the website, along with hopefully a code repository so everybody can submit fixes.
/MikeJ