Search found 373 matches

by brightcaster
Fri Apr 23, 2021 10:14 am
Forum: Dumping
Topic: Help with dump QNX 1.2
Replies: 3
Views: 50

Re: Help with dump QNX 1.2

It has nothing to do with the naming of the files! I tried to write them too, just to see that I can't either! What version of dtc are you using. The files have been dumped with dtc v3.0 which is not available for my linux machine....

David
by brightcaster
Wed Apr 21, 2021 1:52 pm
Forum: Dumping
Topic: Help with dump QNX 1.2
Replies: 3
Views: 50

Re: Help with dump QNX 1.2

The odd tracks are missing! Renaming the raw files from 0 to 39 will do the trick (and adding "-k1" and "-oe40" if you use a 40track drive for writing). I also don't know about a "-w0" parameter!? It could be "wi0" but that should be obsolete as it is set as d...
by brightcaster
Mon Apr 19, 2021 2:30 pm
Forum: Support
Topic: Installing Kryoflux Windows 10 Pro
Replies: 6
Views: 116

Re: Installing Kryoflux Windows 10 Pro

I can't see the steps you mentioned in the manual. It looks as if you are working with different instructions not found in the official manual at https://www.kryoflux.com/download/kryoflux_manual.pdf . There is also the GUI described there... You don't need the molex connected! The board is powered ...
by brightcaster
Sun Apr 18, 2021 12:12 pm
Forum: Support
Topic: Commercial Drive Alignment Disk for IPF candidate
Replies: 3
Views: 78

Re: Commercial Drive Alignment Disk for IPF candidate

I remember an alignment floppy that contained two similar analog signals on track 39.5 and on track 40.5 which where recorded out of phase to each other. You had to connect a scope to the drive, set the head to track 40 and align it to minimum signal! It's impossible to write this two tracks with in...
by brightcaster
Wed Apr 14, 2021 5:16 pm
Forum: Support
Topic: Mastering C64 Disks: How-To?
Replies: 4
Views: 172

Re: Mastering C64 Disks: How-To?

Yes, writing of G64 images forces double stepping. But raw dumps could be written with single stepping on 360k drives! I guess it's the reading only where 360k drives have problems with GCR (due to AGC filtering etc.).

David
by brightcaster
Mon Apr 12, 2021 6:13 pm
Forum: Support
Topic: Mastering C64 Disks: How-To?
Replies: 4
Views: 172

Re: Mastering C64 Disks: How-To?

The Teac FD-55GFR is a 80 track drive with 96tpi. The commodore drives have 40 tracks with 48tpi. That doesn't fit well...

Details are described in this thread:

viewtopic.php?f=10&t=1653&p=14810&hilit ... ive#p14810

David
by brightcaster
Wed Apr 07, 2021 6:00 pm
Forum: Support
Topic: "could not communicate with kryoflux hardware"
Replies: 19
Views: 1540

Re: "could not communicate with kryoflux hardware"

I'm not that familiar with MacOS but this should help to find which driver is loaded:

https://stackoverflow.com/questions/381 ... -on-darwin

David
by brightcaster
Tue Apr 06, 2021 9:14 pm
Forum: Support
Topic: Weird disk format
Replies: 8
Views: 297

Re: Weird disk format

Try writing the attached raw stream to a 3" floppy and look if the clipper can read it...

David
by brightcaster
Tue Apr 06, 2021 5:59 pm
Forum: Support
Topic: Weird disk format
Replies: 8
Views: 297

Re: Weird disk format

There is another notable anomaly! The first valid track of the raw data you provided starts with ID01 (usually ID00) and the last track is ID40 (usually ID39). But the floppy head will always start physically at track 00 whatever ID it has. So I guess it will not find anything there because that tra...
by brightcaster
Tue Apr 06, 2021 5:43 pm
Forum: Support
Topic: Weird disk format
Replies: 8
Views: 297

Re: Weird disk format

If you have a valid mfm sector dump of a known geometry you can always read that to the HxC tool and export that again as kryoflux raw stream. That (exported) raw stream will be perfectly alligned again and chances are great that written back to a floppy everything works. https://hxc2001.com/downloa...