Amiga 1200 Fpga ram / accelerator

RemoteFlyer · 19 February 2020, 16:03

Is there any interest in a cheaper Amiga 1200 Fpga module based ram / accelerator? Not like the vampire, which is about £300 more than I'd spend, more like just a cpu and ram accelerator.

AJCopland · 19 February 2020, 17:10

Yes, kind of like the A500 one being worked on in this thread http://eab.abime.net/showthread.php?t=100729

AJCopland · 19 February 2020, 17:11

NB: this is not to say "here's one already" it's to say "Here's something similar, perhaps a pooling of talent is a good idea"

Also welcome to the forum since that appears to be your first post!

RemoteFlyer · 19 February 2020, 17:18

Thanks. Hi. Yes, I spotted the other accel just after I posted that. I'll definately be watching that and may even beg for advice. I have a lot to learn on the fpga side, but have a Dev board designed and ordered ready for the module.

RemoteFlyer · 19 February 2020, 17:28

Yes, what I've started is extremely similar...

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kipper2k · 19 February 2020, 19:43

Hi there, i see you just joined, where about from Merseyside are you from, I am from Eastham (a long time ago) ? Welcome to EAB

RemoteFlyer · 19 February 2020, 21:13

Hi kipper2k. Ive seen a few of your designs knocking around. Good work. I'm in Newton, not far from Warrington. Thanks for the warm welcome guys.

Marchie · 24 February 2020, 00:04

Amiga gear you don't have to sell a kidney to buy is always welcome. Apollo announced they were offering a free licensed version of the 080 core a while back:

https://amitopia.com/free-68080-fpga...team-is-great/

That might save you some time?

RemoteFlyer · 24 February 2020, 01:41

The Apollo core looks interesting, it would be nice to have that 68080 option. Does anyone have any experience of their core, without exchanging a limb for a vampire?

RemoteFlyer · 24 February 2020, 02:07

"To be able to provide this support you will have to provide us with at least 4 cards for bring-up and tests. You will also compensate =pay the testers for their hours spend."

That's put an abrupt end to that then.

lmimmfn · 24 February 2020, 02:42

Quote:

Originally Posted by RemoteFlyer

"To be able to provide this support you will have to provide us with at least 4 cards for bring-up and tests. You will also compensate =pay the testers for their hours spend."

That's put an abrupt end to that then.

Its not an unreasonable ask though if you're using their core, I think it would be better to query the cost before discounting the idea.

AJCopland · 03 March 2020, 14:46

Forget the Apollo core, just go with TG68k

R4M · 03 March 2020, 21:44

@RemoteFlyer: Which level shifters are you using?
I'm also thinking about connecting an FPGA to one of my Amigas.

utri007 · 05 March 2020, 13:43

Quote:

Originally Posted by RemoteFlyer

The Apollo core looks interesting, it would be nice to have that 68080 option. Does anyone have any experience of their core, without exchanging a limb for a vampire?

Apollo core's target is not to be compatiable and thats why I'm not interested.

Very interesting product, hopefully you complete it.

RemoteFlyer · 04 July 2020, 03:42

Well it's been a lesson in FPGA design and a great distraction during the lockdown. A working a1200 accelerator with 24MB ram based around the DE0-nano FPGA board. [ Show youtube player ]

Niklas · 04 July 2020, 10:25

Quote:

Originally Posted by RemoteFlyer

Well it's been a lesson in FPGA design and a great distraction during the lockdown. A working a1200 accelerator with 24MB ram based around the DE0-nano FPGA board. [ Show youtube player ]

Wow, awesome work! I'm very impressed.

What frequency is the FPGA-implemented CPU running at? Are you using the TG68K core or implemented your own? Will you release it as open source, or keeping the design closed?

nikosidis · 04 July 2020, 10:47

It is for sure a market for what you got there but beat the 030/50 and you have a much bigger market.

In my opinion 030 is the perfect CPU for Amiga 1200. Most compatible and rock steady.

24MB of ram is perfect.

RemoteFlyer · 04 July 2020, 12:00

Quote:

Originally Posted by Niklas

Wow, awesome work! I'm very impressed.

What frequency is the FPGA-implemented CPU running at? Are you using the TG68K core or implemented your own? Will you release it as open source, or keeping the design closed?

Thanks. It's a tg68k running stable at 75Mhz, I think that's where I left it anyway.

It's taken a lot of work to get this far and I'd like to make some money from it if possible, not sure where I'm going with it yet.

talybont · 04 July 2020, 12:05

Really awesome!

RemoteFlyer · 04 July 2020, 12:06

Quote:

Originally Posted by nikosidis

It is for sure a market for what you got there but beat the 030/50 and you have a much bigger market.

In my opinion 030 is the perfect CPU for Amiga 1200. Most compatible and rock steady.

24MB of ram is perfect.

I'm looking at the differences in processors, and how cache works. I'm working to implement cache on the chip ram. My design only has cache on the fast ram right now.

19 February 2020, 16:03	#1
RemoteFlyer Registered User Join Date: Feb 2020 Location: Merseyside / UK Posts: 13	Amiga 1200 Fpga ram / accelerator Is there any interest in a cheaper Amiga 1200 Fpga module based ram / accelerator? Not like the vampire, which is about £300 more than I'd spend, more like just a cpu and ram accelerator. Last edited by RemoteFlyer; 19 February 2020 at 16:10.

19 February 2020, 17:28	#5
RemoteFlyer Registered User Join Date: Feb 2020 Location: Merseyside / UK Posts: 13	Yes, what I've started is extremely similar... Last edited by RemoteFlyer; 19 February 2020 at 17:36.

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19 February 2020, 17:10	#2
AJCopland Registered User Join Date: Sep 2013 Location: Beeston, Nottinghamshire, UK Posts: 238	Yes, kind of like the A500 one being worked on in this thread http://eab.abime.net/showthread.php?t=100729

19 February 2020, 17:11	#3
AJCopland Registered User Join Date: Sep 2013 Location: Beeston, Nottinghamshire, UK Posts: 238	NB: this is not to say "here's one already" it's to say "Here's something similar, perhaps a pooling of talent is a good idea" Also welcome to the forum since that appears to be your first post!

19 February 2020, 17:18	#4
RemoteFlyer Registered User Join Date: Feb 2020 Location: Merseyside / UK Posts: 13	Thanks. Hi. Yes, I spotted the other accel just after I posted that. I'll definately be watching that and may even beg for advice. I have a lot to learn on the fpga side, but have a Dev board designed and ordered ready for the module.

19 February 2020, 19:43	#6
kipper2k Registered User Join Date: Sep 2006 Location: Thunder Bay, Canada Posts: 4,323	Hi there, i see you just joined, where about from Merseyside are you from, I am from Eastham (a long time ago) ? Welcome to EAB

19 February 2020, 21:13	#7
RemoteFlyer Registered User Join Date: Feb 2020 Location: Merseyside / UK Posts: 13	Hi kipper2k. Ive seen a few of your designs knocking around. Good work. I'm in Newton, not far from Warrington. Thanks for the warm welcome guys.

24 February 2020, 00:04	#8
Marchie Registered User Join Date: Jul 2016 Location: Sydney / London Posts: 589	Amiga gear you don't have to sell a kidney to buy is always welcome. Apollo announced they were offering a free licensed version of the 080 core a while back: https://amitopia.com/free-68080-fpga...team-is-great/ That might save you some time?

24 February 2020, 01:41	#9
RemoteFlyer Registered User Join Date: Feb 2020 Location: Merseyside / UK Posts: 13	The Apollo core looks interesting, it would be nice to have that 68080 option. Does anyone have any experience of their core, without exchanging a limb for a vampire?

24 February 2020, 02:07	#10
RemoteFlyer Registered User Join Date: Feb 2020 Location: Merseyside / UK Posts: 13	"To be able to provide this support you will have to provide us with at least 4 cards for bring-up and tests. You will also compensate =pay the testers for their hours spend." That's put an abrupt end to that then.

03 March 2020, 14:46	#12
AJCopland Registered User Join Date: Sep 2013 Location: Beeston, Nottinghamshire, UK Posts: 238	Forget the Apollo core, just go with TG68k

03 March 2020, 21:44	#13
R4M Registered User Join Date: Jan 2019 Location: /home Posts: 122	@RemoteFlyer: Which level shifters are you using? I'm also thinking about connecting an FPGA to one of my Amigas.

04 July 2020, 03:42	#15
RemoteFlyer Registered User Join Date: Feb 2020 Location: Merseyside / UK Posts: 13	Well it's been a lesson in FPGA design and a great distraction during the lockdown. A working a1200 accelerator with 24MB ram based around the DE0-nano FPGA board. [ Show youtube player ]

04 July 2020, 10:47	#17
nikosidis Registered User Join Date: Jan 2020 Location: oslo/norway Posts: 1,607	It is for sure a market for what you got there but beat the 030/50 and you have a much bigger market. In my opinion 030 is the perfect CPU for Amiga 1200. Most compatible and rock steady. 24MB of ram is perfect.

04 July 2020, 12:05	#19
talybont Registered User Join Date: Oct 2016 Location: Norway Posts: 170	Really awesome!

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