Search found 429 matches

by stephen_usher
Sat Jan 20, 2024 8:29 pm
Forum: Compatibles Corner
Topic: ICL OPD 3 vertical white stripes fault
Replies: 24
Views: 1244

Re: ICL OPD 3 vertical white stripes fault

Here are the diagnostic stripe meanings. I'm pretty sure I posted them elsewhere.

OPD-Boot-Diagnostics.jpg

Three stripes = "Data Registers" whatever that means. Maybe some flop-flops somewhere?
by stephen_usher
Fri Jan 19, 2024 9:13 am
Forum: Compatibles Corner
Topic: ICL OPD
Replies: 180
Views: 166796

Re: ICL OPD

And is it possible Stephen, if in your improved/upgraded interface that it could use the more common WD1770 instead of WD1772? I've no idea what the differences are between the WD1770 and the WD1772. If they're not software compatible then the ROM would have to be re-written. It looks like Charlie ...
by stephen_usher
Mon Jan 15, 2024 5:51 pm
Forum: General QL Chat
Topic: Possible QL Is 40 event, UK
Replies: 14
Views: 1324

Re: Possible QL Is 40 event, UK

There's the Retro Computer Museum in Leicester: https://retrocomputermuseum.co.uk/

The Cave doesn't (yet?) do external events.
by stephen_usher
Mon Jan 15, 2024 2:47 pm
Forum: General QL Chat
Topic: Possible QL Is 40 event, UK
Replies: 14
Views: 1324

Re: Possible QL Is 40 event, UK

Is that http://www.nwcomputermuseum.org.uk ? Because the website doesn't work at all atm. There is a Facebook page with contact details, but little by way of actual information and pictures that I could glean from a quick visit. It's also so s-l-o-w as to be pretty unusable. If anyone from that are...
by stephen_usher
Mon Jan 15, 2024 2:06 pm
Forum: General QL Chat
Topic: Possible QL Is 40 event, UK
Replies: 14
Views: 1324

Re: Possible QL Is 40 event, UK

Finding a small computer museum and asking if they could be a venue could be a good plan as they would have the facilities to help with any equipment and knowledge of what's required (such as power sockets!). Some will also have classroom type areas they can use for this sort of thing. They could al...
by stephen_usher
Sun Jan 14, 2024 9:26 pm
Forum: Compatibles Corner
Topic: ICL OPD
Replies: 180
Views: 166796

Re: ICL OPD

Well, the floppy formatted on the C1 interface with the modified ROM passes every interoperability test so I think it's safe to publish.

Note that to use it with the OPD a floppy has to be first formatted on the OPD as the format isn't the default used by MSDOS or the ST.
by stephen_usher
Sun Jan 14, 2024 4:33 pm
Forum: Compatibles Corner
Topic: ICL OPD
Replies: 180
Views: 166796

Re: ICL OPD

Here's a file written on another machine and imported into Quill without difficulty.
IMG_3536.jpeg
by stephen_usher
Sun Jan 14, 2024 4:18 pm
Forum: Compatibles Corner
Topic: ICL OPD
Replies: 180
Views: 166796

Re: ICL OPD

JobDone has managed to fix the C1 floppy interface's ROM so that it now formats a drive that MSDOS and the Atari ST can read and write to. Windows 10 barfs on it, however. I'll be doing some more verification before we publish it. Technical bit: The ROM blindly writes a string held in the ROM to the...
by stephen_usher
Sat Jan 13, 2024 12:34 pm
Forum: Compatibles Corner
Topic: ICL OPD
Replies: 180
Views: 166796

Re: ICL OPD

It looks like the disk image I was using to test was corrupted. This may have been due to the Gotek's FlashFloppy version being old or because I had pin 34 set to change rather than ready. It certainly writes more quickly now. Anyway, the converted version now mounts in DOSBox but something is not r...
by stephen_usher
Sat Jan 13, 2024 9:51 am
Forum: General QL Chat
Topic: QL-is-40!
Replies: 7
Views: 1008

Re: QL-is-40!

When will that be, May for the dongle fitted versions?