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Old 18 September 2012, 02:59   #221
TCD
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Yes he is. He posted 5 posts above you
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Old 18 September 2012, 11:09   #222
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heres a clue jens second name starts with an S

hehehe and I got his autograph
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Old 19 September 2012, 13:47   #223
Schoenfeld
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Quote:
Originally Posted by Mrs Beanbag View Post
Is the guy who designed these accelerators around on the forums? There are some things I would like to ask.
...so what are those few questions?

Jens
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Old 19 September 2012, 15:05   #224
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Quote:
Originally Posted by Schoenfeld View Post
...

FastRobPlus: The ACA500 will most probably conflict with the disk drive. I will most probably make an accelerator that targets the A1000, and that will also include the Phoenix board.

Jens
Yes! Finally some love for the almighty Amiga 1000
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Old 22 September 2012, 19:11   #225
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I have an Amiga 500, and have pre-ordered the ACA1220 through amigakit.com, but I cannot find the ACA500 for sale/pre-order anywhere. Can someone point me where this can be purchased?
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Old 22 September 2012, 19:42   #226
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We will stock it but are awaiting confirmation to add it to our web store. Thanks.
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Old 22 September 2012, 19:43   #227
Mrs Beanbag
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Quote:
Originally Posted by Schoenfeld View Post
...so what are those few questions?

Jens
The questions are, what documentation do you need in order to design accelerators for A1200, and can I get a copy?
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Old 24 September 2012, 09:01   #228
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Old 24 September 2012, 09:41   #229
Schoenfeld
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Quote:
Originally Posted by Mrs Beanbag View Post
The questions are, what documentation do you need in order to design accelerators for A1200, and can I get a copy?
68020 datasheet (UM - user manual contains info on the target bus)
68030 datasheet (UM - same as above, but for the new processor)
Xilinx XC9500XL datasheets
256MBit SD-Ram datasheet (this is a Micron type - Micron has the best datasheets and is best to learn from, and once you've understood how SD-Ram works in principle, you can start to read other vendor's datasheets between the lines).

This is of course just my choice of components - if you want to design your own accelerator, you might find different parts that suit your way of engineering much better.

Jens
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Old 24 September 2012, 11:45   #230
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So, are we going to have the ACA500 before Christmas?
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Old 24 September 2012, 17:02   #231
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Jens and his work

Hello everyone I'm just a new guy around here but have been with my 500 since 1987.Use it most days.
I just read this whole forum and am thrilled to say the least.
My day wasn't looking too bright then bam Jens first post (in this thread) and I'm flying.
Wow....OK wow again.
Are we just the luckiest guys on the planet to have people like Jens out there working away for us and getting results.
Man if I could just do something for you Jens to show my appreciation.
I'm starting by buying 2 of everything I need at these prices we really just cant loose even if this time around its a dud the point is to keep him in the game and we all win.
Hopefully some of you guys out there will see my point and do something similar....... I can really use more days like today.
Once again a very big Thank-you Jens to you and yours.
Jeremy
 
Old 24 September 2012, 17:48   #232
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Yes, Jens, and other enthusiasts are producing some remarkable hardware. The ACA500 , and similar parts is going to breath new life in to old Amigas that so far has been "less enthusiast inspiring". Lets face it. The A500 in it's many flavors are the most common Amiga, but has been the least supplied with upgrades. This might be a real adventure starting a new.
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Old 24 September 2012, 18:06   #233
Mrs Beanbag
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Quote:
Originally Posted by Schoenfeld View Post
68020 datasheet (UM - user manual contains info on the target bus)
68030 datasheet (UM - same as above, but for the new processor)
Xilinx XC9500XL datasheets
256MBit SD-Ram datasheet (this is a Micron type - Micron has the best datasheets and is best to learn from, and once you've understood how SD-Ram works in principle, you can start to read other vendor's datasheets between the lines).

This is of course just my choice of components - if you want to design your own accelerator, you might find different parts that suit your way of engineering much better.

Jens
Thanks Jens, but the information I really need is on the Amiga side of things - the A1200 trapdoor expansion port.
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Old 24 September 2012, 19:11   #234
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Quote:
Originally Posted by Mrs Beanbag View Post
... the A1200 trapdoor expansion port.
From a thread here on schematics recently, someone posted this link:

http://www.amigawiki.de/doku.php?id=...ice:schematics

Looks to have pinouts for the 1200 connector..

That's about as much as I do with hardware.. Look at pics of it.. ;-)

Good luck

desiv
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Old 24 September 2012, 20:19   #235
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What sorcery is this!?

Sorry if this has been covered already but I was talking about these cards the other day and it was pointed out to me that normally an ec020 only has a 24bit address space of 16Mb and yet the ACA1220 is coming with 128Mb RAM.

Anyone care to guess, (or perhaps reveal), how this is achieved? Maybe this is partly why the card will have a fairly modest MHz rating compared to the 1232 which will require no monkeying around with the address bus.
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Old 24 September 2012, 21:13   #236
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Quote:
Originally Posted by jimbob View Post
Anyone care to guess, (or perhaps reveal), how this is achieved?
There's no need to guess, it's explained in the first post of this thread:

Quote:
Originally Posted by Schoenfeld View Post
Our new ACA1220 is powered by a full 16,67MHz 68020.
Not an ec020.
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Old 24 September 2012, 21:29   #237
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Quote:
Originally Posted by Jope View Post
There's no need to guess, it's explained in the first post of this thread:



Not an ec020.

Haha, somedays
I even went and looked at the description on amigakit and somehow mentally inserted "ec" into what I was reading because of the conversation I'd had.
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Old 25 September 2012, 08:18   #238
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Yeh, sometimes we read what we expect. :-)
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Old 25 September 2012, 10:13   #239
Schoenfeld
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New ACAtune V1.7

Hi,

this version of ACAtune supports all the new cards and fixes a few bugs for the older cards. A year-old bug that would not find any accelerator in certain A1200 boards has been fixed, and new options for the new cards have been added.

We could not test this version with ACA1230-28 and ACA1230-42 - please report back. Successfully tested with:
- ACA1230-56
- ACA630-25
- ACA630-30
- ACA620
- ACA1231
- ACA1231LC
- ACA1220
- ACA1232

I have finally found an A1200 board that has the trouble of "could not find ACA card" (would only find card ID $f, which is "no card"). This was actually a software bug that has been in ACAtune since the very first release. V1.7 fixes this bug and finds the accelerator even in those flaky A1200 boards.

The "could not allocate kickstart memory" bug that occured with the ACA1230 is also fixed, but we could only test it with ACA1230-56.

Jens

Last edited by Schoenfeld; 20 August 2013 at 23:43.
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Old 25 September 2012, 10:19   #240
Bamiga2002
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Thanks for update, gotta test this when possible !
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