Schematic cattamaran

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TXG/MNX
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Schematic cattamaran

Post by TXG/MNX »

Hello,

I am looking for the schematic of the cyrel cattamaran, it seems they are not around to sell any so I would like to build my own if possible...

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Post by artik-wroc »

This is good idea !!
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Post by jens »

One for me as well please. ;)
Atm I'm searching for someone who speeds up my TTs' daughterboard to 48 or even 64 mhz. :D
Greetings, Jens

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Post by stimpy »

I may have some schematics or something! I'll look next time the Falcons on.
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Post by alanh »

This would be great if you have them available.
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Re: Schematic cattamaran

Post by jvas »

Could you finally got those schematics?
TXG/MNX wrote:Hello,

I am looking for the schematic of the cyrel cattamaran, it seems they are not around to sell any so I would like to build my own if possible...

TXG/MNX
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Re: Schematic cattamaran

Post by dexterslab »

sorry to bump old threads, but did anyone manage to source a schematic?
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Re: Schematic cattamaran

Post by lp »

Someone sent me this today: https://www.dev-docs.org/docs/htm/searc ... CaTTamaran

It contains some schematics. Warning, large file... 31mb. It's also in German. Not sure what the schematics are, you might want to have a look. :wink:
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Re: Schematic cattamaran

Post by wongck »

I am interested, any hardware expert on this?
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Re: Schematic cattamaran

Post by djbase »

Does anyone have a CaTTamaran and can make pictures from back and top side?
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Re: Schematic cattamaran

Post by dexterslab »

thanks Lp for posting this

the schematics though appear to be atari schematics of the tt itself, with comments about where the cattamaran board ties into rarther than a schema of the board itself. But very useful if someone where to reverse engineer the original.

from the poor pics i've seen of a cattarmaran it's a pretty small & simple looking if someone could take some high rez/detailed pics of one we could certainly have a look at reverse engineering it... unless someone knows how to make something similar allready??
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Re: Schematic cattamaran

Post by [ProToS] »

djbase wrote:Does anyone have a CaTTamaran and can make pictures from back and top side?
I have one somewhere, will take the picture tonight.
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Re: Schematic cattamaran

Post by djbase »

[ProToS] wrote:
djbase wrote:Does anyone have a CaTTamaran and can make pictures from back and top side?
I have one somewhere, will take the picture tonight.
That would be great. 8)
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Re: Schematic cattamaran

Post by [ProToS] »

high rez pictures

Image

Image
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Re: Schematic cattamaran

Post by djbase »

Thanks for the pics. Seems unless someone knows what the GAL does it will be hard to clone this device. The rest is easy to do.
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Re: Schematic cattamaran

Post by dexterslab »

i dunno... am studying the pdf and the pics... to me there seems to be less to this device than meets the eye, including that cyrel branded ic
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Re: Schematic cattamaran

Post by djbase »

The ICS device generates the different clocks and the wires goes to different chips to overclock. From that part its an easy device. I am just not sure what the GAL does.
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Re: Schematic cattamaran

Post by wongck »

djbase wrote:The ICS device generates the different clocks and the wires goes to different chips to overclock. From that part its an easy device. I am just not sure what the GAL does.
probably proprietary.... that's why you don't see so many clones of it floating around. :(
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Re: Schematic cattamaran

Post by jvas »

djbase wrote:The ICS device generates the different clocks and the wires goes to different chips to overclock. From that part its an easy device. I am just not sure what the GAL does.
Can't the gal be reversed in a Gal programmer?
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Re: Schematic cattamaran

Post by dexterslab »

i dont always believe what i see printed on ICs, especially on something like that where there's only a few pins in use

dont see how or why, what would have been a very short production run would have justified a custom ic/clock generator (or whatever it is)

how much did CaTTarmaran retail for when it was new?
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Re: Schematic cattamaran

Post by djbase »

jvas wrote:
djbase wrote:The ICS device generates the different clocks and the wires goes to different chips to overclock. From that part its an easy device. I am just not sure what the GAL does.
Can't the gal be reversed in a Gal programmer?
Maybe you can copy it or save the jedec but not the source. If I could get a CaTTamaran for a few days I could at least do some schematics.
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Re: Schematic cattamaran

Post by wongck »

Maybe you can copy it or save the jedec but not the source. If I could get a CaTTamaran for a few days I could at least do some schematics.
You think someone will let go of the irreplaceble device to be analysted?
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Re: Schematic cattamaran

Post by wongck »

dexterslab wrote:how much did CaTTarmaran retail for when it was new?
Not sure.
But I was going to bid for it for USD$90 on ebay last year.
Unfortunately, I missed by 1-2 minutes and aution was over. :(
The owner place it again on ebay but I was too busy at work and missed it.
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Re: Schematic cattamaran

Post by djbase »

wongck wrote:You think someone will let go of the irreplaceble device to be analysted?
Not sure. I will ask Protos as his one is not installed.
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Re: Schematic cattamaran

Post by ijor »

djbase wrote:
jvas wrote:Can't the gal be reversed in a Gal programmer?
Maybe you can copy it or save the jedec but not the source.
GALs (as everything else) can be reverse engineered. The effort, time and/or money, depends on the specific GAL and if it is protected or not. No idea if it is worth in this case or not.
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