Schematic cattamaran

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Schematic cattamaran

Postby TXG/MNX » Mon Jun 05, 2006 10:37 am

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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Postby artik-wroc » Mon Jun 19, 2006 6:42 am

This is good idea !!
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Postby jens » Tue Jun 20, 2006 6:46 am

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
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Postby stimpy » Tue Jun 20, 2006 8:29 am

I may have some schematics or something! I'll look next time the Falcons on.
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Postby alanh » Mon Jul 24, 2006 9:22 pm

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

Postby jvas » Thu Aug 10, 2006 2:20 pm

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...

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Re: Schematic cattamaran

Postby dexterslab » Sat Apr 18, 2009 11:41 pm

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

Postby lp » Mon Apr 27, 2009 12:59 am

Someone sent me this today: http://dev-docs.atariforge.org/files/CaTTamaran.pdf

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

Postby wongck » Mon Apr 27, 2009 2:48 pm

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

Postby djbase » Mon Apr 27, 2009 2:52 pm

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

Postby dexterslab » Mon Apr 27, 2009 6:16 pm

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

Postby [ProToS] » Mon Apr 27, 2009 6:26 pm

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

Postby djbase » Mon Apr 27, 2009 6:29 pm

[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

Postby [ProToS] » Mon Apr 27, 2009 9:05 pm

high rez pictures

Image

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Re: Schematic cattamaran

Postby djbase » Mon Apr 27, 2009 9:21 pm

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

Postby dexterslab » Mon Apr 27, 2009 11:37 pm

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

Postby djbase » Mon Apr 27, 2009 11:39 pm

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

Postby wongck » Tue Apr 28, 2009 1:52 pm

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

Postby jvas » Tue Apr 28, 2009 1:57 pm

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

Postby dexterslab » Tue Apr 28, 2009 2:08 pm

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

Postby djbase » Tue Apr 28, 2009 2:33 pm

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

Postby wongck » Tue Apr 28, 2009 3:01 pm

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

Postby wongck » Tue Apr 28, 2009 3:04 pm

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

Postby djbase » Tue Apr 28, 2009 3:28 pm

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

Postby ijor » Tue Apr 28, 2009 8:08 pm

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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