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Sophia 2 - improved GTIA replacement

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The new Sophia 2 board will be available soon.

Feaures:

- 100% compatible GTIA replacement

- PAL/NTSC encoding

- Independent RGB/YPbPr/VGA and DVI outputs

- eight selectable DVI modes

- 15 loadable 18-bit color palettes

 

 

Sophia2.thumb.jpg.914b1dc8d0200632b1291fe36a29bfab.jpg

 

 

 

palette.jpg

SOPHIA2en_1_1.pdf

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Fantastic 👍 😍

 

Of course this will obsolete my RGB2VGA board, but I really don't mind since this promises to be a much better, cleaner, and more flexible solution. Now I just need to develop a new jack solution for the XLD that'll mount in the the redundant SIO position.

 

So how many $$$ are we talking about?

 

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Nice... loadable palette means we could do decent saturation levels.

 

Will it have the mode like VBXE where all 15 lumas can be put into the colour registers?

ed - OK cool, read the PDF and that's a yes.

Also able to disable Gr. 10 pixel shift - nice.  And have independent PF1/2 colours in hires - very nice.

Edited by Rybags
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This looks fantastic. Kind of glad I've never gotten around to adding the DVI Sophia to my 1088XEL build. :) 

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- price ? (Do I have to spend a kidney?)

- running with how many Ghz, ermm Mhz?

- how much RAM (GB or MB) ?

- 65816 onboard ? (6502C also possible?)

- Sophia-3 = full HD res.? Sophia-4 = 4k res. ?!?

 

Those who already bought a VBXE (or Sophia-1) will not like this... ;-)

 

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49 minutes ago, DrVenkman said:

This looks fantastic. Kind of glad I've never gotten around to adding the DVI Sophia to my 1088XEL build. :) 

I'm also glad I didn't by the previous DVI version. I already have one of the first RGB/YPbPr versions (with the yellow letters in gr. 0 :)) and now, if it's not too expensive (like triple digits) this looks like a much better option!

 

13 minutes ago, CharlieChaplin said:

- running with how many Ghz, ermm Mhz?

FPGA's run at several hundred MHz. The Atari bus side is still ~1.8MHz, or double that for the fast bus with ANTIC.

 

Quote

- how much RAM (GB or MB) ?

- 65816 onboard ? (6502C also possible?)

This is not Antonia, but Sophia. A different girl ;)

 

Quote

- Sophia-3 = full HD res.? Sophia-4 = 4k res. ?!?

 

Those who already bought a VBXE (or Sophia-1) will not like this... ;-)

Full HD would be nice. I don't mind buying the first Sophia though. Have had years of fun with such a clear image.

 

Edited by ivop

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By “selectable DVI modes,” I assume you mean that the resolution is now user-selectable and user-setable, yes? That would be a great new feature. 

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Hello unixdude

 

19 minutes ago, unixdude said:

By “selectable DVI modes,” I assume you mean that the resolution is now user-selectable and user-setable, yes? That would be a great new feature. 

 

I just had a quick glance at the PDF (see first message in this thread) and I guess that is a "YES".

 

Sincerely

 

Mathy 

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37 minutes ago, Mathy said:

I just had a quick glance at the PDF (see first message in this thread) and I guess that is a "YES".

Thanks. I took a quick look at the PDF as well, but clearly I didn't look closely enough (I was on my phone).  Now that I'm looking on a computer, I see references to the resolution flags, and the related resolutions.  That right there is the big selling point to me.  Very nice.

Edited by unixdude

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I don't know about you guys, but I think maybe being forced to stay home is at least good for the hardware project people!  (Always have to try to look on the bright side of a pandemic).

 

This might be the thing that gets me to build a 1088xel...

3 hours ago, CharlieChaplin said:

Those who already bought a VBXE (or Sophia-1) will not like this... ;-)

Not sure why this would be the case, unless this adds all the new video modes the VBXE does?  Looks like it adds a few new ones.  Can't tell if it has an 80 column mode though.

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I don't really see why one would have buyer's regret about purchasing an older Sophia DVI unless one was desperately holding out for software resolution switching, etc. I put mine in my 1088XEL and its job is and always will be to deliver a DVI signal at 1280x1024 and that is all. It has certainly not fallen out of favour all of a sudden, although the hardware signature in the new version is an overdue and welcome addition.

11 minutes ago, leech said:

Can't tell if it has an 80 column mode though.

You need a higher clock and enhanced ANTIC capabilities to deliver 80 columns in hardware; Sophia takes over from GTIA, so can enhance colour capabilities, etc, but not add new modes which require DMA and such.

 

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7 minutes ago, flashjazzcat said:

I don't really see why one would have buyer's regret about purchasing an older Sophia DVI unless one was desperately holding out for software resolution switching, etc. I put mine in my 1088XEL and its job is and always will be to deliver a DVI signal at 1280x1024 and that is all. It has certainly not fallen out of favour all of a sudden, although the hardware signature in the new version is an overdue and welcome addition.

You need a higher clock and enhanced ANTIC capabilities to deliver 80 columns in hardware; Sophia takes over from GTIA, so can enhance colour capabilities, etc, but not add new modes which require DMA and such.

 

Pretty much what I thought.  Only Sophia I own is the RGB one that I bought for my 5200, and like you say, it's doing it's job nicely connected via a SCART cable to my OSSC :)  Ooh, reminds me, I got my 15pin extension cables, so now I can play it without having to sit so close to the TV!  Might be time to fire up Adventure II again...

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6 hours ago, paulderr said:

Can you use this with the S-Video/ Composite UAV Board?  

It shouldn't affect any potential S-video or composite mods since the GTIA is still passed through to the motherboard. For instance, I have a SOPHIA in my XEGS along with an S-video mod and both work perfectly fine. The RF output in my SOPHIA-modded 5200 also still works fine.

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