Zeus68k – Accelerator/IDE/RAM for the A500/2000/CDTV and others - Page 36

svin83 · 02 April 2014, 11:19

This is an adapter that goes between the Agnus socket in an 512k/1MB Amiga, and a 2MB Agnus (8375).

There's a wire on the DKB with a clip that should be connected to pin 36 on Gary.

This adapter adds 1MB chip itself, so anyone with 1MB on motherboard gets 2MB, And people with 512k onboard can do the trapdoor mod, and get 2MB.

Looks like there could be issues with the DKB since it'll be taller than the original PLCC.

Depends on the space between Zeus and the fat lady :P

Could I try a riser in the CPU slot or something if that's the case?

Sandro · 02 April 2014, 15:25

Quote:

Originally Posted by bubbob42

Just go back a few dozen posts in this thread and you will see them ...

OK I saw them thx
the zeus is 5.x mips like my 020/28mhz turboard on my A1200
I was surprised by ide speed, 6.8 mb sec, my A1200 hardisk speed is 2.7mb sec

mr.vince · 02 April 2014, 18:08

I need to update first post to reflect all changes. We will set up a mailchimp list soon, so people can subscribe there.

Omolungo · 06 April 2014, 10:55

Quote:

Originally Posted by mr.vince

We have a CDTV in the lab just for testing Zeus68k, and also tested with A570.

Can you post a pic of Zeus68k installed in the CDTV?

Just to see how it fits in

mr.vince · 06 April 2014, 12:04

No, I can not as this is being worked on. Once we have it in place, I can.

Omolungo · 06 April 2014, 12:26

Ok, thank you, looking forward to seeing pics

As you understood I'm interested in Zeus68k for my CDTV

Just another question: is the cable for 7/50 Mhz switch (and the other goodies) long enough?
In the CDTV it has to pass under the motherboard to arrive to the back panel, the only place where to place the switches of Zeus68k

mr.vince · 07 April 2014, 21:29

Me too.

The cable is just a flat ribbon cable where you can put your own switch. In one of the test A500 we do have a very nice way of putting it - will reveal later.

svin83 · 28 April 2014, 18:19

Any news?

mr.vince · 29 April 2014, 19:42

I'd love to say yes but softie got dad a couple of weeks ago so... All features implemented, needs finishing. Hardware is nearly good to go.

I am planning to pre-buy some parts that are harder to get, the offer Zeus68k via the KryoFlux store. We'll then go to production and ship a few weeks later.

nikoluis · 29 April 2014, 22:41

So you actually have news

.

Looking forward!

svin83 · 30 April 2014, 10:54

Thanks

Any news is better than no news

Looking forward to getting this installed in my A500(+)
(r6a with ecs denise and 2mb agnus in adapter)

How will flashing kickstarts/freezer roms be done?
Upload via 5v/3.3v Serial/TTL link?

Omolungo · 02 May 2014, 15:53

Quote:

Originally Posted by mr.vince

Me too.

The cable is just a flat ribbon cable where you can put your own switch. In one of the test A500 we do have a very nice way of putting it - will reveal later.

Just another questio: is it possible to deactivate Zeus via switch?
I mean, If I have Zeus installed in the CDTV and I want to disable ide CF or acceleretor in order to use CDTV as a stock machine, could I?

mr.vince · 03 May 2014, 00:11

That is one of the great features of the Zeus68k - it's completely configurable in software. If you want a standard A500, you set the original clock speed, configure RAM as you like and then you have a stock A500.

As for flashing and things: This can be done via external hardware (JTAG), but usually you just do it in system: Boot your Amiga, run the Zeus68k flash tool and upload ROMs of your choice.

svin83 · 21 May 2014, 14:53

I asked around a bit about the DKB MegAChip. The only reason I've found, that it possibly won't work with the Zeus68k is maybe limitations of the Zorro II bus...

I really have no idea, but I want the Zeus68k anyway, and If it crashes with the MegAChip I'll need to find a workaround, or another way to maximize chipmem.

svin83 · 03 June 2014, 09:48

still no news?

IFW · 03 June 2014, 11:01

If you can consider that news I've seen a prototype (or pre-production?) board at Mr. Vince and it's very impressive to say the least

Gunnar · 03 June 2014, 11:15

I have one question regarding the signal connection.

Could the FPGA in theory act as CPU?

svin83 · 06 June 2014, 08:39

Quote:

Originally Posted by IFW

If you can consider that news I've seen a prototype (or pre-production?) board at Mr. Vince and it's very impressive to say the least

At least it's something

Thanks

svin83 · 06 June 2014, 19:40

Are there any freezer carts that support 8mb fast, 2mb chip, full ECS, and kick 3.1?

mr.vince · 07 June 2014, 15:38

Quote:

Originally Posted by Gunnar

I have one question regarding the signal connection.

Could the FPGA in theory act as CPU?

I think this has been discussed in detail at a1k.org...

02 April 2014, 11:19	#701
svin83 Meditating Guru Join Date: Aug 2013 Location: Trondheim / Norway Posts: 32	About the DKB Megachip. This is an adapter that goes between the Agnus socket in an 512k/1MB Amiga, and a 2MB Agnus (8375). There's a wire on the DKB with a clip that should be connected to pin 36 on Gary. This adapter adds 1MB chip itself, so anyone with 1MB on motherboard gets 2MB, And people with 512k onboard can do the trapdoor mod, and get 2MB. Looks like there could be issues with the DKB since it'll be taller than the original PLCC. Depends on the space between Zeus and the fat lady :P Could I try a riser in the CPU slot or something if that's the case? Last edited by svin83; 02 April 2014 at 11:40. Reason: Corrected spelling

28 April 2014, 18:19	#708
svin83 Meditating Guru Join Date: Aug 2013 Location: Trondheim / Norway Posts: 32	Any news? Any news?

21 May 2014, 14:53	#714
svin83 Meditating Guru Join Date: Aug 2013 Location: Trondheim / Norway Posts: 32	Zorro II bus limits I asked around a bit about the DKB MegAChip. The only reason I've found, that it possibly won't work with the Zeus68k is maybe limitations of the Zorro II bus... I really have no idea, but I want the Zeus68k anyway, and If it crashes with the MegAChip I'll need to find a workaround, or another way to maximize chipmem.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
was there ever a PowerPC accelerator for A500 1000 2000?	boing_1000	request.Other	6	04 April 2014 07:12
WTB A500 accelerator or Microbotics: VXL RAM 32	lurch	MarketPlace	0	14 June 2012 10:43
Internal IDE for A500(and possibly 1000/2000)	coze	Hardware mods	50	18 August 2010 10:20
Possible group buy: SOJ -> DIP 20 adapter PCBs for old accelerator RAM / A500 hacking	Secret Vampire	support.Hardware	5	21 February 2010 15:55
A1200 internal ram vs accelerator ram	Foster	support.Hardware	3	24 March 2008 14:43

02 April 2014, 18:08	#703
mr.vince Cheesy crust Join Date: Nov 2008 Location: Hawk's Creek Age: 48 Posts: 1,383	I need to update first post to reflect all changes. We will set up a mailchimp list soon, so people can subscribe there.

06 April 2014, 12:04	#705
mr.vince Cheesy crust Join Date: Nov 2008 Location: Hawk's Creek Age: 48 Posts: 1,383	No, I can not as this is being worked on. Once we have it in place, I can.

06 April 2014, 12:26	#706
Omolungo Registered User Join Date: Nov 2009 Location: Livorno, Italy Posts: 398	Ok, thank you, looking forward to seeing pics As you understood I'm interested in Zeus68k for my CDTV Just another question: is the cable for 7/50 Mhz switch (and the other goodies) long enough? In the CDTV it has to pass under the motherboard to arrive to the back panel, the only place where to place the switches of Zeus68k

07 April 2014, 21:29	#707
mr.vince Cheesy crust Join Date: Nov 2008 Location: Hawk's Creek Age: 48 Posts: 1,383	Me too. The cable is just a flat ribbon cable where you can put your own switch. In one of the test A500 we do have a very nice way of putting it - will reveal later.

29 April 2014, 19:42	#709
mr.vince Cheesy crust Join Date: Nov 2008 Location: Hawk's Creek Age: 48 Posts: 1,383	I'd love to say yes but softie got dad a couple of weeks ago so... All features implemented, needs finishing. Hardware is nearly good to go. I am planning to pre-buy some parts that are harder to get, the offer Zeus68k via the KryoFlux store. We'll then go to production and ship a few weeks later.

29 April 2014, 22:41	#710
nikoluis Registered User Join Date: Feb 2013 Location: Greece Age: 49 Posts: 14	So you actually have news . Looking forward!

30 April 2014, 10:54	#711
svin83 Meditating Guru Join Date: Aug 2013 Location: Trondheim / Norway Posts: 32	Thanks Any news is better than no news Looking forward to getting this installed in my A500(+) (r6a with ecs denise and 2mb agnus in adapter) How will flashing kickstarts/freezer roms be done? Upload via 5v/3.3v Serial/TTL link?

03 May 2014, 00:11	#713
mr.vince Cheesy crust Join Date: Nov 2008 Location: Hawk's Creek Age: 48 Posts: 1,383	That is one of the great features of the Zeus68k - it's completely configurable in software. If you want a standard A500, you set the original clock speed, configure RAM as you like and then you have a stock A500. As for flashing and things: This can be done via external hardware (JTAG), but usually you just do it in system: Boot your Amiga, run the Zeus68k flash tool and upload ROMs of your choice.

03 June 2014, 09:48	#715
svin83 Meditating Guru Join Date: Aug 2013 Location: Trondheim / Norway Posts: 32	still no news?

03 June 2014, 11:01	#716
IFW Moderator Join Date: Jan 2003 Location: ... Age: 52 Posts: 1,838	If you can consider that news I've seen a prototype (or pre-production?) board at Mr. Vince and it's very impressive to say the least

03 June 2014, 11:15	#717
Gunnar Registered User Join Date: Apr 2014 Location: Germany Posts: 154	I have one question regarding the signal connection. Could the FPGA in theory act as CPU?

06 June 2014, 19:40	#719
svin83 Meditating Guru Join Date: Aug 2013 Location: Trondheim / Norway Posts: 32	Are there any freezer carts that support 8mb fast, 2mb chip, full ECS, and kick 3.1?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)