A4000 3.1

plasmar · 02 February 2007, 07:20

what type of proms/eproms do I need for Amiga 4000 to burn kickstart 3.1 thanx

alexh · 02 February 2007, 09:54

27C400 x 2

plasmar · 02 February 2007, 16:31

these are 4mb:S??

alexh · 02 February 2007, 17:58

They are 512kbytes each, half of which goes unused with a regular KS3.1.

plasmar · 02 February 2007, 20:31

know where I can get me 2;P

NorthWay · 03 October 2018, 16:40

Quote:

Originally Posted by alexh

They are 512kbytes each, half of which goes unused with a regular KS3.1.

Necro, but anyway: Is that half totally lost, or can it be mapped in somewhere?

BonusQ: Did any of the 4000 Kickstart flash solutions ever get any traction?

Daedalus · 03 October 2018, 16:49

The half is lost as it is mapped to the other ROM chip. As far as the Amiga address map is concerned it appears identical to a single-chip ROM like in the A500, 600 etc.

NorthWay · 03 October 2018, 19:09

Thanks. Just ordered a 27C400 adapter for my USB eprom programmer so I guess I ought to burn myself some homecooked chips.

But I'm still looking for in-socket flash solutions for my 4000.
And 1M+ solutions too for that matter. Both in one really.
All I have seen have been homebrews with nowhere to order...

(Oh, and I found this thread that said $F00000 was mapped on the Zorro-II bus?)
P.S
Is my new used KickflashOS4 a ROM device that allocates memory and copies over data from flash? I still haven't opened and tested it...

idrougge · 03 October 2018, 20:56

You can use a Romy if you need 1 MB of ROM space.

02 February 2007, 07:20	#1
plasmar Registered User Join Date: Feb 2007 Location: Winnipeg Posts: 14	A4000 3.1 what type of proms/eproms do I need for Amiga 4000 to burn kickstart 3.1 thanx

02 February 2007, 16:31	#3
plasmar Registered User Join Date: Feb 2007 Location: Winnipeg Posts: 14	these are 4mb:S?? Last edited by plasmar; 02 February 2007 at 17:16.

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02 February 2007, 09:54	#2
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,409	27C400 x 2

02 February 2007, 17:58	#4
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,409	They are 512kbytes each, half of which goes unused with a regular KS3.1.

02 February 2007, 20:31	#5
plasmar Registered User Join Date: Feb 2007 Location: Winnipeg Posts: 14	know where I can get me 2;P

03 October 2018, 16:49	#7
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,369	The half is lost as it is mapped to the other ROM chip. As far as the Amiga address map is concerned it appears identical to a single-chip ROM like in the A500, 600 etc.

03 October 2018, 19:09	#8
NorthWay Registered User Join Date: May 2013 Location: Grimstad / Norway Posts: 848	Thanks. Just ordered a 27C400 adapter for my USB eprom programmer so I guess I ought to burn myself some homecooked chips. But I'm still looking for in-socket flash solutions for my 4000. And 1M+ solutions too for that matter. Both in one really. All I have seen have been homebrews with nowhere to order... (Oh, and I found this thread that said $F00000 was mapped on the Zorro-II bus?) P.S Is my new used KickflashOS4 a ROM device that allocates memory and copies over data from flash? I still haven't opened and tested it...

03 October 2018, 20:56	#9
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,342	You can use a Romy if you need 1 MB of ROM space.

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