ORIC SDCARD

This is the right place to discuss on how to implement hardware vsync, adding a VIA or AY chipset, puting multiple roms, or how to design a new flash expansion card.
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iss
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Re: ORIC SDCARD

Post by iss » Sun Jan 06, 2019 11:43 pm

Thanks, very interesting indeed. Classic scheme - clear and well designed - no doubt it will work stable.
Actually it's very close to the scheme I used for OricExos slaves to enable RAM Overlay (which works nice too!) :).
In the doc file is written about using MAP signal to disable internal RAM (#0000..#C000),
this information can be found in other sources, but my question is:
Does anyone know about a real existing device which adds external RAM to Oric-1/Atmos ?

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ibisum
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Re: ORIC SDCARD

Post by ibisum » Mon Jan 07, 2019 11:15 am

I really want to make one of these ORIC SDCARD projects - anyone else interested? I think we can (affordably) do a small production run of PCB's if we get enough interest ..

romualdl
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Re: ORIC SDCARD

Post by romualdl » Mon Jan 07, 2019 5:32 pm

I would be in. But as stated before, there are some differences between the schematics and the board. So for routing purpose it should be better to wire them correctly. I will have a look at it by the end of the week (I have a sdlep to solder for my Acorn Electron and Matra Alice before ;) ).

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ibisum
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Re: ORIC SDCARD

Post by ibisum » Tue Jan 08, 2019 12:07 pm

Would be good to get this sorted out - I'll commit to at least 5 of these boards, out of the batch .. and am willing to finance more if there is interest and we might get them distributed, over time, to other Oric users.

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Voyageur
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Re: ORIC SDCARD

Post by Voyageur » Sun Jan 13, 2019 10:51 am

I also would be in.
I intend to make a dirty one for tests but it will be great to get a nice card.
Oric Atmos : a new life !

romualdl
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Re: ORIC SDCARD

Post by romualdl » Sun Jan 13, 2019 8:18 pm

I have ordered the parts to make one for testing ;)

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