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Amiga computer related discussion => Amiga Software Issues and Discussion => Topic started by: Chucky on August 11, 2019, 02:10:52 PM

Title: Amiga 3000 Clone
Post by: Chucky on August 11, 2019, 02:10:52 PM
Just introducing my Amiga 3000 Clone:

https://youtu.be/NzAjpO2Scsk (https://youtu.be/NzAjpO2Scsk)
Title: Re: Amiga 3000 Clone
Post by: Matt_H on August 11, 2019, 03:26:20 PM
Brilliant! But why did you keep those infernal ZIP sockets? ;)

Seriously, though, congrats on the accomplishment and thanks on behalf of the community.
Title: Re: Amiga 3000 Clone
Post by: Chucky on August 11, 2019, 06:35:52 PM
As I told in the video.  I kept it to have a working baseline.  and there are people who want it due to the Static Column ZIPs..

Title: Re: Amiga 3000 Clone
Post by: outlawal2 on August 12, 2019, 01:19:04 AM
Will you build one complete for sale?
Title: Re: Amiga 3000 Clone
Post by: Matt_H on August 12, 2019, 01:28:13 AM
As I told in the video.
Ah. I wasn’t able to watch with audio when I viewed it.
Quote
I kept it to have a working baseline.  and there are people who want it due to the Static Column ZIPs..
Forgive me, I can’t remember the technical benefit of static column. Is it a speed boost compared to FPM? And SIMMs don’t get that benefit either?
Title: Re: Amiga 3000 Clone
Post by: Chucky on August 12, 2019, 09:23:20 AM
It is some faster, like a precursor to EDO Ram. (NO. EDO is NOT the same)

this was never implemented in simms, they got EDO later instead.
Title: Re: Amiga 3000 Clone
Post by: mechy on August 12, 2019, 04:47:44 PM
Nice job! i would like to get one of these to replace a bad board i have in a A3000.
Title: Re: Amiga 3000 Clone
Post by: kirk_m on August 12, 2019, 04:57:58 PM
I think the SCRam lets you use BURST mode in 030 CPUs and higher...whereas FPM does not.  There is a section in the A3000 manual that describes why one is better than the other, I think.
Title: Re: Amiga 3000 Clone
Post by: Matt_H on August 12, 2019, 10:11:02 PM
@ Chucky and kirk_m

Interesting. Thanks for the info!
Title: Re: Amiga 3000 Clone
Post by: NovaCoder on August 13, 2019, 02:16:47 AM
It is some faster, like a precursor to EDO Ram. (NO. EDO is NOT the same)

this was never implemented in simms, they got EDO later instead.

For the reAmiga 3000 I think you should primarily focus on making it cheaper to manufacture (while retaining compatibility as much as possible).   Obviously if you can increase performance/stability while retaining compatibility with software and hardware cards then that would be bonus.   It might also be preferable to replace a couple of the vintage ECS chips for something more interesting ;)

For someone like me who can't solder for s*it and also doesn't want to spend hours searching for all of the vintage components it would be preferable to buy a complete working A3000 (inspired) modern reproduction motherboard.

You could ditch the on-board CPU and FASTRAM for a start to save costs...

:)


Title: Re: Amiga 3000 Clone
Post by: Dragster on August 13, 2019, 03:09:27 AM
Absolutely fantastic!! Would love to be able to buy one of these at some point! Keep up the great work!

Cheers,
Dragster.
Title: Re: Amiga 3000 Clone
Post by: Motormouth on August 13, 2019, 03:15:25 AM
Nice job! i would like to get one of these to replace a bad board i have in a A3000.

+1
Title: Re: Amiga 3000 Clone
Post by: Chucky on August 13, 2019, 09:26:03 AM
I have some black PCBs left.. 80eur+shipping each. sooo..
Title: Re: Amiga 3000 Clone
Post by: Brian Hoskins on August 13, 2019, 09:41:02 AM
Nice work indeed.  It must have taken you a while to lay that PCB.

When considering future development, my opinion is that compatibility is important but given that this is a brand new PCB, which diverges from "original" anyway, I think the door is open for a lot of decent improvements and if I were you I would not be shy of implementing them.

Obviously each person will have their own ideas about which improvements they would like to see, and from that list only some of them will be feasible.  But this is a very nice project and I congratulate you on it!  I will pay attention to its continued development.

Out of interest, what PCB package are you on?
Title: Re: Amiga 3000 Clone
Post by: Rotzloeffel on August 19, 2019, 02:35:30 PM
Where do you want to be tomorrow ?

The AA3000+ PCI with AGA-Chipset :)
Title: Re: Amiga 3000 Clone
Post by: don27dog on August 19, 2019, 10:58:49 PM
Nide work!