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Piotr Bugaj dragon disc controller

Posted: Thu Oct 01, 2015 12:02 pm
by pser1
Hi,
does anyone, that has bought one of these controllers, know where could any info about it be found?
I mean, what does Piotr 'burn' into the four 8k slots, for instance.
Or any info about possible ways to fine tune the pots and trim?
Schematics, anything related ...

thanks in advance
pere

Re: Piotr Bugaj dragon disc controller

Posted: Thu Oct 01, 2015 4:08 pm
by pser1
well,
after inserting it in slot4 of my MPI, it has worked flawlessly, no need for any adjustements!
I have named the switches position as 'Left' or 'Right' when looking at them having on their left
the wide ribbon cable.
These are the DOS that I have found in the 4 slots
S2 ...... S1
L ........ L ....... DDOS1.1C
L ........ R ------- DDOS1.0
R ........ L ....... Eurohard 4.1
R ........ R ....... SuperDOS E6

A good mix to play with!

cheers
pere

Re: Piotr Bugaj dragon disc controller

Posted: Thu Oct 01, 2015 5:51 pm
by tormod
From what I can see Piotr = zaxon and this is the newly made controller mentioned in viewtopic.php?f=6&t=5362

You already found it out yourself, but in one of his videos https://plus.google.com/s/zaxoniec he shows switching between the 4 DOSes.

Re: Piotr Bugaj dragon disc controller

Posted: Thu Oct 01, 2015 6:12 pm
by pser1
I Tormod,
I had not seen these videos, but it was easy just two switches for 4 DOS, so it was clear what they must do.
This is a nice DOS collection

cheers
pere

Re: Piotr Bugaj dragon disc controller

Posted: Fri Oct 02, 2015 10:11 pm
by Stig
I think that the switchable DOS is the best feature of his controller. It was me who asked for him to include 1.1c and 4.1.

Chris from the facebook group asked for Superdos E6

I have been using mine with a combination of 3.5" and 5.25" floppy drives and it works flawlessly :)

John

Re: Piotr Bugaj dragon disc controller

Posted: Fri Oct 02, 2015 10:57 pm
by pser1
Hi,
I was thinking of allowing the ROM to be called from $C000 till $FEFF
just needs another address line, then I could burn the DOSPlus5.0 with my extender in it, too
just occupying two slots, but still will be place for SuperDOS E8 and DDOS13A

cheers
pere