WANTED MegaST 68881 copro board C103067 / SPF004

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SophieRose
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WANTED MegaST 68881 copro board C103067 / SPF004

Post by SophieRose »

I'm on the hunt for a MegaST 68881 FPU board C103067 / SPF004

Anyone got one they would be willing to part with?

Soph
Musician and Atari ST user. https://sophie-rose.bandcamp.com
Mega ST4 T28, 1040STE & 520STM, Amiga 600, Link 480Z, Amstrad 6128 plus, Timex2048, C128, C64, MSX HB201P. Plus too many more.
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DoG
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by DoG »

Sorry for asking, but what are you going to use it for? I'm curious since hardly anything uses a FPU on Atari.

(I own one of these board and it takes up so much space in the case)
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SophieRose
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by SophieRose »

I like to mess with POV-ray and I'm interested in programming to utilise the 68881 in my own just for fun projects.

PS yeah they are a bit big aren't they.
Musician and Atari ST user. https://sophie-rose.bandcamp.com
Mega ST4 T28, 1040STE & 520STM, Amiga 600, Link 480Z, Amstrad 6128 plus, Timex2048, C128, C64, MSX HB201P. Plus too many more.
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frank.lukas
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by frank.lukas »

div SPF004 -> http://atari4ever.free.fr/hardware/zip/fpu68881.zip
CIRCUIT_FPU.gif
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SophieRose
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by SophieRose »

Yeah cheers.

I've got all those files, that's my plan B in case I can't find an original. :)
Musician and Atari ST user. https://sophie-rose.bandcamp.com
Mega ST4 T28, 1040STE & 520STM, Amiga 600, Link 480Z, Amstrad 6128 plus, Timex2048, C128, C64, MSX HB201P. Plus too many more.
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frank.lukas
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by frank.lukas »

I´am snowbound totally in. So it made a quick and dirty Eagle schematics. It take a week or more to made the PCB Layout. Run the Autorouter can be done for a quick result. It will work but it not be nice. 10 pcb´s costs 5,- Dollar over pcbway in china plus postage ...
autorouter.jpg
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Attachments
Gerber_MST_FPU.zip
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MST_FPU_CARD.zip
(118.25 KiB) Downloaded 159 times
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SophieRose
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by SophieRose »

That's fantastic, thank you for sharing that 8-)
Musician and Atari ST user. https://sophie-rose.bandcamp.com
Mega ST4 T28, 1040STE & 520STM, Amiga 600, Link 480Z, Amstrad 6128 plus, Timex2048, C128, C64, MSX HB201P. Plus too many more.
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frank.lukas
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by frank.lukas »

See if all is correct. I can make misstakes ...
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SophieRose
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Re: WANTED MegaST 68881 copro board C103067 / SPF004

Post by SophieRose »

I will check it through, thank you.
Musician and Atari ST user. https://sophie-rose.bandcamp.com
Mega ST4 T28, 1040STE & 520STM, Amiga 600, Link 480Z, Amstrad 6128 plus, Timex2048, C128, C64, MSX HB201P. Plus too many more.
guus.assmann
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WANTED MegaST 68881 copro board C103067 / SPF004

Post by guus.assmann »

Hello,

I do have a complete card, with a 68881.
It is an original, with one "flaw".
The Oscillator has been removed and put in a socket.
This has been done to test the Co-Pro at higher speeds, and it does.

I'm willing to sell it for a good price. (definitely not top dollar)
Downside is, that I'm in the Netherlands and shipment may be a spoilsport.

Let me know if you're interested.

BR/
Guus
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