100 pin header inside GVP A500-HD+ - Page 2

Syko · 22 September 2002, 20:24

When in doubt, hit it with a stick!

A method that humans have been using with some success, for quite some time. Why break the habit of an evolution

darksun9210 · 16 April 2007, 12:54

so what do we recon? is it zorro1, zorro2 or custom? i can't see that much control logic on my HD8+ to suggest anything else?

am itching to build a slot for a zorro2 card, just don't want anything to go bang!

but with GVP's history of 64pin simms instead of standard 72pins, or the custom modules that went into the 530, i wouldn't rule out something completely proprietary...

Jope · 16 April 2007, 13:28

Zorro I and Zorro II are electrically compatible, but the cards are just a different form factor. I doubt there were any commercially available Zorro I expansion boards, only reference designs.

So it's probably a Zorro slot with a different connector..

Why not take the Amigabus and Zorro II pinouts in one hand and a multimeter in the other and start tracing the signals to the edge connector.

jmmijo · 16 April 2007, 16:46

I'm pretty sure that GVP made that slot a propreitary one and was planning on or had indeed released some PC compatible cards, like a 386/486 cpu board of some kinds...

Yes indeed, take a look at this snippet from the Big Book of Amiga Hardware:

Quote:

"The GVP 530 also has a connector for attaching an optional 286 PC emulator."

And this is the description

darksun9210 · 27 April 2007, 13:16

well, the power points seem to line up, just a case of growing the ballskis to connect a z2 card to it....

18yr+ old hardware, don't fail me now!

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22 September 2002, 20:24	#21
Syko Now got GSX750F :)) Join Date: Jun 2002 Location: Halifax UK Age: 60 Posts: 584	When in doubt, hit it with a stick! A method that humans have been using with some success, for quite some time. Why break the habit of an evolution

16 April 2007, 12:54	#22
darksun9210 Because i can. Join Date: Apr 2007 Location: London Age: 46 Posts: 25	so what do we recon? is it zorro1, zorro2 or custom? i can't see that much control logic on my HD8+ to suggest anything else? am itching to build a slot for a zorro2 card, just don't want anything to go bang! but with GVP's history of 64pin simms instead of standard 72pins, or the custom modules that went into the 530, i wouldn't rule out something completely proprietary...

16 April 2007, 13:28	#23
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,918	Zorro I and Zorro II are electrically compatible, but the cards are just a different form factor. I doubt there were any commercially available Zorro I expansion boards, only reference designs. So it's probably a Zorro slot with a different connector.. Why not take the Amigabus and Zorro II pinouts in one hand and a multimeter in the other and start tracing the signals to the edge connector.

27 April 2007, 13:16	#25
darksun9210 Because i can. Join Date: Apr 2007 Location: London Age: 46 Posts: 25	well, the power points seem to line up, just a case of growing the ballskis to connect a z2 card to it.... 18yr+ old hardware, don't fail me now!

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