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Re: Cumana Reborn DSK support

Posted: Wed Apr 28, 2021 6:26 am
by Bieno
Steve M wrote:
Mon Apr 26, 2021 10:12 pm
It looks under-powered to me, but I'm no expert.
I tried too with 3 different power supplies with the same bad result.

Re: Cumana Reborn DSK support

Posted: Wed Apr 28, 2021 10:00 pm
by Steve M
What amps were you power supplies?

Re: Cumana Reborn DSK support

Posted: Thu Apr 29, 2021 7:14 am
by Dbug
I tried with both the spanish one that does DC9V at 2A and the original Oric Atmos brick

Re: Cumana Reborn DSK support

Posted: Thu Apr 29, 2021 11:02 am
by Bieno
I've done the same, with the original one and with this: https://www.micomputer.es/en/oric/149-o ... upply.html

Image

Re: Cumana Reborn DSK support

Posted: Thu Apr 29, 2021 12:38 pm
by Chema
With 2A there should be no problem, imho. Dbug, does the Oric which does not like the Cumana work with Cumulus? I still think the bus signal problems (mainly MAP, which is precisely what is usually adjusted with a potentiometer) are to blame.

iss wrote he found a solution by pure chance, but I am not sure if that is something applicable to every oric or just his new interface...

Re: Cumana Reborn DSK support

Posted: Thu Apr 29, 2021 1:06 pm
by Dbug
This Oric works perfectly with my Cumulus as well as Microdisc + Gotek combo :)
And also with the RS232 and SPO256 Speech Synthesizer.

Re: Cumana Reborn DSK support

Posted: Thu Apr 29, 2021 3:35 pm
by xahmol
Bieno wrote:
Thu Apr 29, 2021 11:02 am
I've done the same, with the original one and with this: https://www.micomputer.es/en/oric/149-o ... upply.html
This is exactly the one I am using that works with my Cumana Reborn here. So we can rule that out as a cause indeed it seems.

Re: Cumana Reborn DSK support

Posted: Mon May 03, 2021 12:06 am
by Steve M
Hmm, I'm a bit baffled then. The real Cumana will work with most things - even Orics that struggle to boot on their own. I think they use more powerful power supplies but they power the Oric as well.
Over to Piotr.

Re: Cumana Reborn DSK support

Posted: Mon May 03, 2021 7:41 am
by Dbug
Imo, if that was a power problem, that would have impacted all the floppies.
One thing I did not try is to use another USB stick.

Re: Cumana Reborn DSK support

Posted: Mon May 03, 2021 11:52 am
by Bieno
Dbug wrote:
Mon May 03, 2021 7:41 am
Imo, if that was a power problem, that would have impacted all the floppies.
One thing I did not try is to use another USB stick.
I've tryed it with 2 more USB sticks, formatted the same way as the original that came with the unit