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Author Topic: FPGA Replay Board  (Read 824421 times)

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Offline gaula92

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Re: FPGA Replay Board
« Reply #1814 from previous page: August 23, 2012, 09:11:39 AM »
Quote from: Darrin;704735
In Louisiana it is more of a "swamp" thing.  Dig  down a couple of feet and you hit fresh water.

That's why H P Lovecraft discov..ehmm... invented the Cthulu creatures, like The Deep Ones :D
I don't know a thing about the US geography but I hope you won't build your house on some ancient ruins and become crazy dreaming about creatures that inhabited the earth before mankind!
(And avoid classic mithological names like Derceto, etc)
 

Offline freqmax

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Re: FPGA Replay Board
« Reply #1815 on: August 23, 2012, 12:01:14 PM »
Btw, isn't there a few people with access to the source code that can work out these bugs while Mikej deals with his move?
 

Offline mikej

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Re: FPGA Replay Board
« Reply #1816 on: August 23, 2012, 02:00:32 PM »
There are three of us so far working on separate parts of the design.
Once we have a coherent working release (including new boot loader) it will be opened up so more people can help.
/Mike
 

Offline Faranheit

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Re: FPGA Replay Board
« Reply #1817 on: August 23, 2012, 07:18:28 PM »
Hi :)

Good to hear that the updated core is near completion !

As mentionned before me, like the Minimig when it has been launched, games / apps compatibility needs to be improved, and the replay board's core is more complicated than the Minimig's one.

But, even with the current version (from half 2011), many softwares / games works well !

Things are going pretty good now ;)

Thanks to Mike and Jakub and the 'support team' for this great board ;)
Laurent aka Faranheit
AMEDIA COMPUTER FRANCE
Director
Metz - France
Mail : contact@amedia-computer.com
Site : http://www.amedia-computer.com
 

Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #1818 on: August 26, 2012, 08:37:11 PM »
Great to hear there is lots of progress on the core and the project in total.
Any news on when we can see some screenshots on the daughterboard in beta-action ?

//ES
 

Offline freqmax

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Re: FPGA Replay Board
« Reply #1819 on: August 27, 2012, 12:12:18 AM »
Let's get the base board completed fully first.. plz ;)
 

Offline espskogTopic starter

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Re: FPGA Replay Board
« Reply #1820 on: August 31, 2012, 05:52:56 PM »
I've had the base board for about 1,5 years or so :)
 

Offline Darth_X

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Re: FPGA Replay Board
« Reply #1821 on: August 31, 2012, 06:22:39 PM »
Quote from: xyzzy;602907
What will be present on the upcoming daughter board?


I would like to know how much it would cost to add an Amiga floppy drive controller to this board. Its a strange request, I know, but I'm curious. I still need to read/write Amiga floppies.
 

Offline xyzzy

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Re: FPGA Replay Board
« Reply #1822 on: August 31, 2012, 06:54:05 PM »
Quote from: Darth_X;706034
I would like to know how much it would cost to add an Amiga floppy drive controller to this board. Its a strange request, I know, but I'm curious. I still need to read/write Amiga floppies.


The Kryoflux USB floppy controller might be just what you're looking for, of course there's the small question of amiga drivers.

http://www.kryoflux.com/

Alternatively it may be possible to connect a floppy drive up to some spare I/O lines and run it through the FPGA.
 

Offline Darth_X

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Re: FPGA Replay Board
« Reply #1823 on: August 31, 2012, 07:46:36 PM »
Quote from: xyzzy;706039
The Kryoflux USB floppy controller might be just what you're looking for, of course there's the small question of amiga drivers.

http://www.kryoflux.com/

Alternatively it may be possible to connect a floppy drive up to some spare I/O lines and run it through the FPGA.


I'm interested in the Kryoflux, but it costs $172 CAD$. Great with a PC with USB, but not really an add-on for an FPGA based Amiga.
 

Offline VuData

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Re: FPGA Replay Board
« Reply #1824 on: August 31, 2012, 08:28:37 PM »
I mentioned earlier in this thread that an add-on board with a floppy interface to connect a 3.5 and 5.25" drive would be awesome. SID sockets would also be a bonus (basically a catweasle).
« Last Edit: September 01, 2012, 09:46:46 AM by VuData »
 

Offline jackflash

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Re: FPGA Replay Board
« Reply #1825 on: September 07, 2012, 03:06:24 PM »
can the Replay Board read CD images and run as a CD32?
 

Offline freqmax

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Re: FPGA Replay Board
« Reply #1826 on: September 07, 2012, 03:33:39 PM »
I think the hugest hurdles are:
 * Motorola 68EC020 @ 14 MHz
 * AGA graphics

But there is both an 68030-alike CPU- and AGA-core. It's an A1200 more or less. That leaves the CD emulation. But that is likely easier than the existing harddisc emulation.

So it's very likely doable, but I don't think there exist any code for this setup. But reconfiguration of existing code and adding CD-emulation should do it.
« Last Edit: September 07, 2012, 03:37:16 PM by freqmax »
 

Offline glitch

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Re: FPGA Replay Board
« Reply #1827 on: September 07, 2012, 04:27:00 PM »
Don't forget the Akiko chip emulation for C2P conversion.  Not sure how much software relied on that though.
 

Offline Darrin

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Re: FPGA Replay Board
« Reply #1828 on: September 07, 2012, 04:57:46 PM »
Quote from: jackflash;706968
can the Replay Board read CD images and run as a CD32?


Well you can try using WHDLoad to run CD32 games.
A2000, A3000, 2 x A1200T, A1200, A4000Tower & Mediator, CD32, VIC-20, C64, C128, C128D, PET 8032, Minimig & ARM, C-One, FPGA Arcade... and AmigaOne X1000.
 

Offline freqmax

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Re: FPGA Replay Board
« Reply #1829 on: September 07, 2012, 06:02:17 PM »
Wikipedia says about Akiko:
Quote
Akiko allows this conversion to be performed in hardware instead of relying on software conversion which would cause more overhead. The conversion works by writing 32 chunky pixels to Akiko's registers and reading back eight 32-bit words of converted planar data which can then be copied to the display buffer.

Seems not that hard to implement as a HDL-core ..?