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Old 01 August 2018, 01:36   #1
redblade
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Motorola 56000 DSP.

Hi.

It seems this could also be used for maths functions? I was wondering why they didn't add this to a accelerator card and patch the math libraries for the Amiga. In a ST Format DSP programming tutorial, they mention it speeds up fractal calculations. Was kind of wondering why they didn't release a blizzard 1220/4 with a 56k DSP on it.

Thanks guys.
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Old 01 August 2018, 01:44   #2
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The Delfina Flipper has a 56002 and it was used to speed up math functions, just MP3 and some environmental effects as I recall. The A3000+ was supposed to have an AT&T DSP3210, unfortunately this was never released.
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Old 01 August 2018, 07:36   #3
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Quote:
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Hi.

It seems this could also be used for maths functions?
.
Read this thread and be amazed at just how effective the dsp can be at maths:

http://www.atari-forum.com/viewtopic.php?f=68&t=26775
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Old 01 August 2018, 12:24   #4
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I actually have a couple of 56001 DSPs and always wanted to interface one to the Amiga. Given they have internal PROGRAM and DATA RAM as long as the "application" is small enough to fit in 512 words external components are very limited.

Does anyone know if there is SW to support them? I believe the Linux kernel has drivers for the DSP but no real "applications".
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Old 01 August 2018, 15:31   #5
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@PR77 might be best asking how the Atari Falcon community handles them since they've got more experience at using them for things other than audio by the look of it.
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Old 02 August 2018, 03:39   #6
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Quote:
Originally Posted by grelbfarlk View Post
The Delfina Flipper has a 56002 and it was used to speed up math functions, just MP3 and some environmental effects as I recall. The A3000+ was supposed to have an AT&T DSP3210, unfortunately this was never released.
Yes I see the Delfina. I haven't had much look at trying to buy one . I guess there is not a demand for Amiga expansions with DSPs well Motorola DSP 56k.

@PR77: ST Format has a tutorial on programming them, I've only read the first two so far.

Last edited by redblade; 02 August 2018 at 03:40. Reason: Added reply to PR77
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Old 02 August 2018, 03:51   #7
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Yes I see the Delfina. I haven't had much look at trying to buy one . I guess there is not a demand for Amiga expansions with DSPs well Motorola DSP 56k.

@PR77: ST Format has a tutorial on programming them, I've only read the first two so far.

I would say there is a demand as the price is so high. I think everyone would welcome a new DSP equipped sound card, which is what many were hoping we were getting with the Primsa Megamix. Many were disappointed that it was limited to just MP3 decoding and not a general purpose AHI/DSP card.
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Old 02 August 2018, 09:26   #8
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ST Format has a tutorial on programming them, I've only read the first two so far.
Sounds like fun, do you remember which issue it starts in?
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Old 02 August 2018, 17:35   #9
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There's a bunch of resources about them here:
https://mikro.naprvyraz.sk/docs/
https://dhs.nu/files.php?t=codingtool
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Old 03 August 2018, 03:43   #10
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Quote:
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I would say there is a demand as the price is so high. I think everyone would welcome a new DSP equipped sound card, which is what many were hoping we were getting with the Primsa Megamix. Many were disappointed that it was limited to just MP3 decoding and not a general purpose AHI/DSP card.
Yeah I saw that, hopefully some one will release a DSP one, maybe a blizzard 1220/4 with one as well with the DSP )).

@musashi5150. It started in ST Format issue 74, I have the first 2 issues in the zone
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Old 03 August 2018, 09:28   #11
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@musashi5150. It started in ST Format issue 74, I have the first 2 issues in the zone
Thanks very much I've had a Falcon for ages, but never really done anything with it. Maybe this will spark my interest again
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Old 03 August 2018, 10:04   #12
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It was an amazing chip in 1993. There must be faster versions around these days
Seems it topped out at 250 mhz in 2010.
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Old 04 August 2018, 04:13   #13
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It was an amazing chip in 1993. There must be faster versions around these days
Seems it topped out at 250 mhz in 2010.
A 250mhz one on a accelerator board would be nice. I also read that there is a 68k chip with the DSP chip added. The 68456

Musashi5150: When did you buy the falcon and how much?? I got those tutorials from the ST format site so there are a few more. I'm glad enthiusiasts upload the tutorial parts of the magazines. It's a shame that amr.abime.net isn't complete with the tutorials, maybe in the future
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Old 04 August 2018, 04:34   #14
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Atari Falcon 030 DSP jpeg load speed

[ Show youtube player ]

Cho Ren Sha 68k Atari Falcon030 DSP sprite engine test

[ Show youtube player ]

Last edited by SKOLMAN_MWS; 04 August 2018 at 04:56.
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Old 05 August 2018, 11:32   #15
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skolman_mws. That's some fast JPEG loading. I guess it helps having a chunky display. I used to use PPshow on my Amiga 1200 to view pictures, took a bit of a while. It's good to see that the DSP speeds up calculations for the JPEG. That's a nice shoot em up as well.
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Old 06 August 2018, 09:31   #16
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When did you buy the falcon and how much??
From memory, about 6 years ago I think. Paid £300 GBP for it. It's just stock 030/FPU with 14MB & CF card - nothing fancy.
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Old 07 August 2018, 03:37   #17
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From memory, about 6 years ago I think. Paid £300 GBP for it. It's just stock 030/FPU with 14MB & CF card - nothing fancy.
https://www.ebay.com/itm/Atari-Falco...sid=m570.l1313
1700 Euro at the moment for a Atari Falcon. I don't know who has that kind of money. I know Amiga hardware is also very expensive BUT once Chucky starts releasing those A1200 knock offs with hardware patches .

But if some one starts building a A1200 expansion with a Motorola DSP I'm interested

Last edited by redblade; 07 August 2018 at 03:41. Reason: 1700 Euro for a Atari Falcon 030 14MB RAM
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Old 07 August 2018, 20:47   #18
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Aren't there any FPGA recreations of Falcon's?
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Old 07 August 2018, 23:21   #19
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I’m glad I got my falcon before the prices went totally insane. Amibay or Atari-forum are still far better places to get a Falcon than eBay.
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Old 09 August 2018, 12:14   #20
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The Motorola 56000 only has a 24 bit address bus, does that mean it can only address upto 16MiB of ram?

There's the DSP56303, which is a 100Mhz binary compatible version costing ~£31, but it's end-of-life and that 422 in stock might be all there is.
https://www.digikey.co.uk/en/product...gnal-processor

There's other DSP choices which aren't end of life. Something like the TMS320C6711D can do full single precision floating point operations, runs at 250MHz and is only £22.79
https://www.digikey.co.uk/product-de...843-ND/1670149
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