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Author Topic: My A500+ Project  (Read 24812 times)

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Offline pyrre

Re: My A500+ Project
« Reply #89 on: August 19, 2008, 09:52:05 PM »
Quote
It would probably be easier to adapt A2000 accelerator to fit into A500 side expansion bus.


All you need is this and the micronik (or similar) tower....
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Offline sim085Topic starter

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Re: My A500+ Project
« Reply #90 on: August 20, 2008, 09:51:08 AM »
Quote

pyrre wrote:
Quote
It would probably be easier to adapt A2000 accelerator to fit into A500 side expansion bus.


All you need is this and the micronik (or similar) tower....


But that would mean I would have to change mu current case for the A500+ right?
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Offline jj

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Re: My A500+ Project
« Reply #91 on: August 20, 2008, 10:19:33 AM »
@ CountZero

Im pretty sure the 020 at least, is 32bit proc with24bit data path

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Offline Kronos

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Re: My A500+ Project
« Reply #92 on: August 20, 2008, 11:49:42 AM »
@JJ

The 68020 has a 32bit address-space and a 32bit data path.
The 68ec20 (as used in the A1200) has 24bit address-space and 32bit data-path.

24bit data path ? :shocked:  :nervous:
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Offline countzero

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Re: My A500+ Project
« Reply #93 on: August 20, 2008, 12:20:17 PM »
Quote

JJ wrote:
@ CountZero

Im pretty sure the 020 at least, is 32bit proc with24bit data path



and ?  :-?
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Offline pyrre

Re: My A500+ Project
« Reply #94 on: August 20, 2008, 01:27:22 PM »
Quote
But that would mean I would have to change mu current case for the A500+ right?

Yes it would mean you must mount it in a tower....

Search a.org for pictures of towered A500ds...
Could be a nice project. And it would enable you to use the Blizzard 2060 which (to me) is the ultimate A2000 accelerator...
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Offline sim085Topic starter

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Re: My A500+ Project
« Reply #95 on: August 20, 2008, 02:06:44 PM »
So I cannot maybe just build a convertor from the A500+ style CPU fast slot to an A2000 style CPU fast slot? Something very simple and strait forward? I guess there would still be the problem on how to put that thing in the A500+ case but that would be another problem. I personally do not like the idea of towerzing my A500+ ... it just feels strange to me to see an A500+ inside a tower!!
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Offline countzero

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Re: My A500+ Project
« Reply #96 on: August 20, 2008, 02:29:14 PM »
technically this is possible. AFAIK all the signals are there. My previous answer was about a A1200 accelerator bridge, which is a totally different beast. However, I can't see you fitting a A2000 accelerator inside your 500+. Maybe you could do a side car like thingie though. There was a project from an italian guy who did a custom A500 zorro + accelerator plate from a A3000 daughterboard, but I don't have access to my links now  :roll:
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Offline sim085Topic starter

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Re: My A500+ Project
« Reply #97 on: August 20, 2008, 02:33:18 PM »
I understood your point about the A1200 accelerator bridge and agree that such a project would be impossible. But this project does not sound so much impossible :-) But it is not going to happen now for sure  :-P I guess fitting such a big card in the A500+ is the hardest task once a convertor is built! Thanks for the answers :-)
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Offline pyrre

Re: My A500+ Project
« Reply #98 on: August 20, 2008, 02:58:00 PM »
But still... the easiest way of accelerating your A500+ as it is now is to got your hands on a 68000 CPU accelerator like the derrigner... Sadly the derrigner is gone...
Other options is those sidecar expanders like the GVP A530...
But your A500+ will still do well in terms of games and demos...
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Offline sim085Topic starter

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Re: My A500+ Project
« Reply #99 on: August 20, 2008, 03:05:05 PM »
Thanks pyrre for your reply :) As I said in previous posts I am not intrested in ANY accelerator cards for my A500+ at the moment ... I mostly keep asking on different accelerator cards for two reasons. The first one is to learn the differences between the different Amigas and the second one is that in the 'future' I may still upgrade the A500+ with an accelerator card... maybe ...

The Blizzard 2060 is an intresting option because I think it would be very powerfull for A500+ with an 060@50Mhz processor and 128Mb of fast RAM!
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Offline Lockon_15

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Re: My A500+ Project
« Reply #100 on: August 20, 2008, 03:32:37 PM »
Yes, it would be.
But then you could proceed with upgrades and maybe get a PicassoIV RTG graphic card with internal scandoubler/flickerfixer.

Just a thought...
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Offline pyrre

Re: My A500+ Project
« Reply #101 on: August 20, 2008, 03:34:39 PM »
Yes it would. However. due to the size of the Blizzard 2060 (full size) it is not recommended puting it in an A500 without a tower. Some sort of sidecar and the micronik (or similar) bus board modded together would be possible.

With the bus board you would be able to use any zorro II cards as well. Including network cards for internet surfing and GFX cards for better graphics and display +++

But for keeping the A500 "wedge" case. GVP 530 or Derringer like accelerators are the best options...
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Amiga 1200 Tower Os 3.9
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Amiga 2000 (rev 4.0) Os 1.2/1.3
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Amiga 500+ Os 2.1
Derringer 030, 32MBram, Buddha in sidecar, Indivision ECS.
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Offline sim085Topic starter

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Re: My A500+ Project
« Reply #102 on: August 20, 2008, 08:54:20 PM »
Hi people,

Sorry to change subject again. Today I received the parts I had ordered from eBay; I have connected the GVP HD8+ and the 1Mb RAM expansion board and everything worked fine :) However I am scared of only one thing ... how do I switch the computer off now?

I have two ppc supplies. Is it ok if I just switch the hard drive ppc off and then the computer ppc off or there is some other way? I am afraid I could damage the hard drive if I just switch off the hard drive ppc.

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Offline pyrre

Re: My A500+ Project
« Reply #103 on: August 20, 2008, 08:59:44 PM »
I would not use two PSUs for one computer...
I would rather modify one to power both the computer and the Hdd.
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Amiga 1200 Tower Os 3.9
BPPC 603e+ 040-25/200, 256MBram, BVIsionPPC, Indivision AGA MK2.
Amiga 2000 (rev 4.0) Os 1.2/1.3
2088 bridgeboard, 2MB ram card, 2091 SCSI.
Amiga 500+ Os 2.1
Derringer 030, 32MBram, Buddha in sidecar, Indivision ECS.
Amiga CD32
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Offline sim085Topic starter

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Re: My A500+ Project
« Reply #104 from previous page: August 20, 2008, 11:43:44 PM »
Quote

pyrre wrote:
I would not use two PSUs for one computer...

Why? Is it for the space they take or there is something more to it? Such as it is bad to first switch off one device and then the other!

Quote

pyrre wrote:
I would rather modify one to power both the computer and the Hdd.

At the moment I was trying to avoid doing this since my soldering skills are practically none.

However still; even if with one PSU then is it just a question of switching off the PSU or I have to follow some steps to switch the Amiga off? I do not feel right just switching off the PSU since it feels as if I am cutting the electricity from the hard drive all of a sudden and thus potentially breaking it.
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