New Saturn 128k compatible cards

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Are either of these 'new'

Are either of these 'new' Saturn 128k designs open source, or have they been made available to the Apple II community?

I'm looking to have a play with a variation of this to use in the Apple III, and it would save some time reinventing the wheel again.

/Rob

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rjustice wrote:Are either of
rjustice wrote:

Are either of these 'new' Saturn 128k designs open source, or have they been made available to the Apple II community?

I'm looking to have a play with a variation of this to use in the Apple III, and it would save some time reinventing the wheel again.

/Rob

Have you tried one in a III?  I know that many cards wont work because shared rom space isnt supported but the saturn card doesnt use shared rom.It just asserts the inhibit line and maps over the rom address space.

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David_M wrote:rjustice wrote
David_M wrote:
rjustice wrote:

Are either of these 'new' Saturn 128k designs open source, or have they been made available to the Apple II community?

I'm looking to have a play with a variation of this to use in the Apple III, and it would save some time reinventing the wheel again.

/Rob

Have you tried one in a III?  I know that many cards wont work because shared rom space isnt supported but the saturn card doesnt use shared rom.It just asserts the inhibit line and maps over the rom address space.

 No, i have not tried one. I do have a clone of the original saturn card and its too long to fit in the A3. You made me think that if i have the mother board out and i use a bus extender card it will fit. I'll give it a go.

The Titan ///+II cards made for the A3 are basically a saturn 128k plus some extra logic to always decode in slot 0, a game port, and a way to enable disable the card.

 

/Rob

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Last seen: 3 weeks 4 days ago
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rjustice wrote:David_M wrote
rjustice wrote:
David_M wrote:
rjustice wrote:

Are either of these 'new' Saturn 128k designs open source, or have they been made available to the Apple II community?

I'm looking to have a play with a variation of this to use in the Apple III, and it would save some time reinventing the wheel again.

/Rob

Have you tried one in a III?  I know that many cards wont work because shared rom space isnt supported but the saturn card doesnt use shared rom.It just asserts the inhibit line and maps over the rom address space.

 No, i have not tried one. I do have a clone of the original saturn card and its too long to fit in the A3. You made me think that if i have the mother board out and i use a bus extender card it will fit. I'll give it a go.

The Titan ///+II cards made for the A3 are basically a saturn 128k plus some extra logic to always decode in slot 0, a game port, and a way to enable disable the card.

 

/Rob

The extra features would need a 2nd GAL , some passive components and a 556 timer chip. It would be doable without too much trouble.The biggest impediment is I dont have an Apple III to test in and international mail is near comatose.

 

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