Page 2 of 3

Re: ORIC SDCARD

Posted: Sun Jan 06, 2019 11:43 pm
by iss
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 ?

Re: ORIC SDCARD

Posted: Mon Jan 07, 2019 11:15 am
by ibisum
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 ..

Re: ORIC SDCARD

Posted: Mon Jan 07, 2019 5:32 pm
by romualdl
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 ;) ).

Re: ORIC SDCARD

Posted: Tue Jan 08, 2019 12:07 pm
by ibisum
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.

Re: ORIC SDCARD

Posted: Sun Jan 13, 2019 10:51 am
by Voyageur
I also would be in.
I intend to make a dirty one for tests but it will be great to get a nice card.

Re: ORIC SDCARD

Posted: Sun Jan 13, 2019 8:18 pm
by romualdl
I have ordered the parts to make one for testing ;)

Re: ORIC SDCARD

Posted: Wed Jan 23, 2019 11:13 am
by Voyageur
Thanks to Edl42 !
I've modified a little bit the code and the schematics to use a 1602 I2C LCD (only 2 pins for the Nano : A4 and A5).
I am just waiting for a SD card reader module and soon, I will made a 'dirty" copy of it.
Will report whatever is the result. 8)

Re: ORIC SDCARD

Posted: Wed Jan 23, 2019 4:13 pm
by romualdl
Hehe still waiting for the parts here to finish mine. Hope to get them soon...

Re: ORIC SDCARD

Posted: Sat Mar 09, 2019 12:19 am
by kenneth
Je teste actuellement une lecture du répertoire racine d'une carte SD avec des portes logiques et un EPROM 64k. Le projet n'est pas terminé...


Re: ORIC SDCARD

Posted: Mon Mar 11, 2019 8:44 am
by Voyageur
I finally made a dirty version of the ORIC SDCARD and that's working pretty well...

Have a look here :

https://youtu.be/QB_Fa6f4D-g

Thanks to EdL42 ! :D

Re: ORIC SDCARD

Posted: Mon Mar 11, 2019 11:57 am
by kenneth
Nice ! 8)

Re: ORIC SDCARD

Posted: Sat May 04, 2019 8:35 am
by zaxon
Assembled ;) Lot of wires. :D

Image

I think do some PCB so interface can looks like this ?

Image

Re: ORIC SDCARD

Posted: Sat May 04, 2019 9:59 am
by Chema
Looks terrific! :D

Re: ORIC SDCARD

Posted: Sat May 04, 2019 3:10 pm
by ibisum
This is really beautiful. Only thing I wonder is if its going to be possible to somehow mount .DSK images programmatically from the Oric itself, rather than requiring user interaction...

Re: ORIC SDCARD

Posted: Sat May 04, 2019 4:32 pm
by Symoon
This looks great!
Makes me think that we could re-use old joysticks (quickshot style), integrate a screen and use the joystick + fire button to navigate in the menus ;)