On Fri, Jul 20, 2018 at 5:06 PM, Dave Wade via cctalk
wrote:
>> -Original Message-
>> From: cctalk On Behalf Of dwight via
> cctalk
>> Sent: 19 July 2018 22:17
>> To: Liam Proven ; General Discussion: On-Topic and
>> Off-Topic Posts
>> Subject: Re
> -Original Message-
> From: cctalk On Behalf Of dwight via
cctalk
> Sent: 19 July 2018 22:17
> To: Liam Proven ; General Discussion: On-Topic and
> Off-Topic Posts
> Subject: Re: GoTEK SFR1M44-U100...
>
> One thing that bothers me is the continued emphasis on
on: On-Topic and Off-Topic Posts
Subject: Re: GoTEK SFR1M44-U100...
On Tue, 17 Jul 2018 at 19:43, Peter Corlett via cctalk
wrote:
>
> That's an extraordinary claim that sets off my bullshit detector. Snopes
> offers
> this commentary: https://www.snopes.com/fact-check/1895-exam
On 7/18/18 11:15 AM, Chuck Guzis via cctalk wrote:
> essentially a (rather inefficient) serial interface.
where the pulses jitter, and interfere with each other if too close
in the real world.
The only place this shows up in an emulator is
knowing there may be write precompensation occuring f
On 07/18/2018 09:02 AM, Adrian Graham via cctalk wrote:
> On 18 Jul 2018, at 03:22, Fred Cisin via cctalk
> wrote:
>
> Could the Gotek firmware, and some drivers on PC's with "HD" or "ED"
> controllers, be kludged together to get faster data transfers?
I found that I could produce a 1.44M (500Kb
On 07/18/2018 09:03 AM, Liam Proven via cctalk wrote:
> Aha! Interesting. So it's not actually able to be read as if it were a
> diskette? It's sort of hijacking the drive as an alternative I/O
> medium, pulsing data at a stationary drive head, ignoring rotation and
> track positioning?
That's es
On Wed, 18 Jul 2018 at 17:53, Chuck Guzis via cctalk
wrote:
>
> Yup. I've still got one of the FlashPath units after having taken one
> apart and destroyed it in the process.
>
> There;s a small electromagnet (coil) located where it can be coupled to
> the drive head. The rest is pretty straight
On 18 Jul 2018, at 03:22, Fred Cisin via cctalk
wrote:
Could the Gotek firmware, and some drivers on PC's with "HD" or "ED"
controllers, be kludged together to get faster data transfers?
Replying to myself here but these are the current config file parameters, I
think either setting ibmpc-hdout
On 07/18/2018 04:19 AM, Liam Proven via cctalk wrote:
> https://www.amazon.com/SmartDisk-FlashPath-Floppy-Adapter-SmartMedia/dp/B5QXW7
Yup. I've still got one of the FlashPath units after having taken one
apart and destroyed it in the process.
There;s a small electromagnet (coil) located wh
On Tue, 17 Jul 2018 at 19:43, Peter Corlett via cctalk
wrote:
>
> That's an extraordinary claim that sets off my bullshit detector. Snopes
> offers
> this commentary: https://www.snopes.com/fact-check/1895-exam/
>
> 50-100 years before you were at school would be roughly 1870-1920, which is
> rig
On Wed, 18 Jul 2018 at 01:11, Eric Smith via cctalk
wrote:
>
> Unfortunately not. A floppy drive doesn't have any way to know what sector
> the host wants, so a drive emulator has to simulate the rotation process.
On that note... Does anyone know how NV-memory-to-floppy emulators worked?
E.g. th
> On 18 Jul 2018, at 03:22, Fred Cisin via cctalk wrote:
>
> Could the Gotek firmware, and some drivers on PC's with "HD" or "ED"
> controllers, be kludged together to get faster data transfers?
Good question. I’ll ask since that could be implemented with a line in the
config file. Keir is c
On 07/17/2018 04:11 PM, Eric Smith via cctalk wrote:
When 3.5-inch floppy drives and hard drives were introduced, most used the
same 34-pin interfaces as their 5.25-inch counterparts.
On Tue, 17 Jul 2018, Chuck Guzis via cctalk wrote:
Can't say much about 3.5" hard drives (the only really earl
On 07/17/2018 04:11 PM, Eric Smith via cctalk wrote:
> When 3.5-inch floppy drives and hard drives were introduced, most used the
> same 34-pin interfaces as their 5.25-inch counterparts.
Can't say much about 3.5" hard drives (the only really early ones I've
seen are standard ST505-type 2-cable i
On Tue, 17 Jul 2018, Eric Smith via cctalk wrote:
more history of it than you probably wanted:
I think that it is worth adding in the amusing anecdote of the name
"Seagate".
Alan Shugart as "Shugart Associates" changed 8" drives to what became the
industry standard form. And then created th
On Tue, Jul 17, 2018 at 2:49 PM, Grant Taylor via cctalk <
cctalk@classiccmp.org> wrote:
> I conceptually get that the GoTEK can't go any faster than the Floppy's
> IDE (I thought floppy was a derivative of IDE.) bus can carry the data.
IDE came much later and isn't very similar to the floppy in
Just a question, you’re not expecting the Gotek to whizz files onto the
Compaq are you?
On Tue, 17 Jul 2018, Grant Taylor via cctalk wrote:
No, not as such.
It may be something modern emulating a floppy drive but it also has to
emulate the floppy drive rotational speed so it should be the same
On 07/17/2018 02:04 PM, Adrian Graham via cctalk wrote:
Just a question, you’re not expecting the Gotek to whizz files onto the
Compaq are you?
No, not as such.
It may be something modern emulating a floppy drive but it also has
to emulate the floppy drive rotational speed so it should be the
> On 17 Jul 2018, at 18:49, Grant Taylor via cctalk
> wrote:
>
> I don't know if the GoTEK is itself slow or if it's a result of what the
> computer was doing with it. — My only experience was trying to have a
> Compaq System Utility Partition back itself up to the GoTEK. The first
> ""d
On 07/17/2018 12:39 PM, Chuck Guzis via cctalk wrote:
Why not put a scope on the INDEX pin output and see if it's nice and
regular or it skips revs when the firmware has to ge fetch a track's
worth of data?
I don't currently have a scope. I also don't have the knowledge to do
what you sugges
On 07/17/2018 10:49 AM, Grant Taylor via cctalk wrote:
> I'm sure there is a healthy dose of my ignorance of using the GoTEK.
> There was zero documentation that came with it. Online searches turn up
> a myriad of versions for the different models and it's all combining
> into a … cesspool seems
On 07/13/2018 03:12 PM, Grant Taylor via cctalk wrote:
Does anyone have any experience with the GoTEK SFR1M44-U100 floppy drive
emulator that reads ""images from a USB flash drive?
In case anyone is interested.
I have received my GoTEK and my initial impression is something betwee
On Tue, Jul 17, 2018 at 03:21:43PM +0200, Liam Proven via cctalk wrote:
[...]
> But then, when I look at school examination papers from 50 or 100 years
> before I was at school, *I'm* terrified. I feel like I am retarded, compared
> to schoolchildren of the turn of the 20th century who were expecte
On 07/17/2018 07:21 AM, Liam Proven via cctalk wrote:
…but they don't see them as particularly important.
Sadly, many of my generation and younger, don't understand that the
perception of importance often doesn't match the actual importance.
--
Grant. . . .
unix || die
On 07/17/2018 09:50 AM, Eric Smith via cctalk wrote:
> The latter, two single single-sided heads, each opposed by a pressure pad.
>
> Aside from the provision for extra fingerprints, a problem with this scheme
> was that they varied the rotation rate depending on the position of the
> head in use
On Mon, Jul 16, 2018 at 4:58 PM, Fred Cisin wrote:
> On the Lisa "Twiggy" diskettes, they made special provision to get more
>>> thumb prints.
>>>
>>
> On Mon, 16 Jul 2018, Eric Smith wrote:
>
>> I imagine you're aware of the actual reason for the two diametrically
>> opposing jacket cutouts for
On Tue, 17 Jul 2018 at 14:36, Noel Chiappa via cctalk
wrote:
>
> Yikes.
>
> Send them this:
>
> http://www.chiappa.net/~jnc/tech/sflovers/
*Chuckle*
I doubt they'd understand. This quiz was in the basement bar of a
youth hostel. I would guesstimate that these kids are all young enough
that the
> From: Liam Proven
> one of the questions was about "the early days of the old-time
> internet, if you're old and you've been online forever."
> It was about Myspace.
Yikes.
Send them this:
http://www.chiappa.net/~jnc/tech/sflovers/
Noel
On Tue, 17 Jul 2018 at 03:41, Fred Cisin via cctalk
wrote:
>
> On 8", notch is write protect; no notch is write enabled.
> on 5.25", notch is write enabled; no notch is write protected.
> I think that that justifies calling the 8" a "write protect notch", and
> calling the 5.25" a "write enable no
On Tue, 17 Jul 2018 at 00:17, Fred Cisin via cctalk
wrote:
>
> Or maybe it's the need for fingerprint oils on the media! 3.5" keeps
> fingers away more than 5.25 or 8". On the Lisa "Twiggy" diskettes, they
> made special provision to get more thumb prints.
*Chuckle*
Even if I never saw them, I
On Mon, 16 Jul 2018 at 17:31, Chuck Guzis via cctalk
wrote:
>
> There were a couple of versions of web-browser with OS that fit on a
> 1.44M floppy.
I know about the famous QNX Demo Disk. It's the only one I knew of, though.
http://toastytech.com/guis/qnxdemo.html
Although I guess I could, just
index hole was on a 8 inch disk for the
various flavors of 8 inch disk.
Dwight
From: cctalk on behalf of Chuck Guzis via
cctalk
Sent: Monday, July 16, 2018 7:28:19 PM
To: Fred Cisin via cctalk
Subject: Re: GoTEK SFR1M44-U100...
On 07/16/2018 06:40 PM, Fred C
On 07/16/2018 06:40 PM, Fred Cisin via cctalk wrote:
> On 8", notch is write protect; no notch is write enabled.
> on 5.25", notch is write enabled; no notch is write protected.
> I think that that justifies calling the 8" a "write protect notch", and
> calling the 5.25" a "write enable notch".
>
I am reminded of an episode of "Computer Bowl" (TV game show). Nobody
on Bill Gates' team could answer WHERE the write protect notch is on an
8 inch diskette!
On Mon, 16 Jul 2018, Chuck Guzis via cctalk wrote:
Indeed, I couldn't even tell you. I *do* know where the write *enable*
notch is, ho
On 07/16/2018 03:58 PM, Fred Cisin via cctalk wrote:
> I am reminded of an episode of "Computer Bowl" (TV game show). Nobody
> on Bill Gates' team could answer WHERE the write protect notch is on an
> 8 inch diskette!
Indeed, I couldn't even tell you. I *do* know where the write *enable*
notch
On the Lisa "Twiggy" diskettes, they made special provision to get more
thumb prints.
On Mon, 16 Jul 2018, Eric Smith wrote:
:-)
I imagine you're aware of the actual reason for the two diametrically
opposing jacket cutouts for the read/write heads.
I'm NOT sure. I speculate:
1) for users who
On Mon, Jul 16, 2018 at 4:17 PM, Fred Cisin via cctalk <
cctalk@classiccmp.org> wrote:
> On the Lisa "Twiggy" diskettes, they made special provision to get more
> thumb prints.
>
:-)
I imagine you're aware of the actual reason for the two diametrically
opposing jacket cutouts for the read/write
On Mon, 16 Jul 2018, Chuck Guzis via cctalk wrote:
The problem with 3.5" floppies for me was the declining quality of the
media as manufacturers raced toward the bottom pricing point.
IIRC that initially, a box of 10 3.5" DSHD floppies was about $50--at
least that's what I paid for a box of Fujis
On 07/16/2018 07:38 AM, Liam Proven via cctalk wrote:
> I did that on occasion. So did some OS distributions, just to keep the
> number of boot diskettes down to just 3 and still be able to boot a
> bloated 1990s OS off floppy, plus enough drivers and storage subsystem
> to access a CD drive.
The
On Sun, 15 Jul 2018 at 06:40, Fred Cisin via cctalk
wrote:
>
> And, in the 3.5" form factor, it was fairly straightforward to tweak the
> parameters of the format to get 1.7M on a 1.4M disk.
I did that on occasion. So did some OS distributions, just to keep the
number of boot diskettes down to ju
On Sun, 15 Jul 2018 at 05:55, Grant Taylor via cctalk
wrote:
>
> Wow.
>
> I had no idea that there was a 5¼" disk that held more than 1.2 MB.
>
> So much history that I'm sure is being lost to time.
Me neither -- and I thought I knew a fair bit about floppies. I
sometimes misstate things just in
1:13:20 AM
To: cctalk@classiccmp.org; 'Grant Taylor'
Subject: RE: GoTEK SFR1M44-U100...
> -Original Message-
> From: cctalk On Behalf Of Grant Taylor via
> cctalk
> Sent: 15 July 2018 04:56
> To: cctalk@classiccmp.org
> Subject: Re: GoTEK SFR1M44-U100...
>
&
On 07/13/2018 06:51 PM, Torfinn Ingolfsen via cctalk wrote:
> On Fri, Jul 13, 2018 at 11:42 PM, Chuck Guzis via cctalk
> wrote:
>> On the other hand, if you want to use this with more general floppy
>> images, you can install the HxC firmware which supports lots of formats.
>>
> Or FlashFloppy f
> -Original Message-
> From: cctalk On Behalf Of Grant Taylor via
> cctalk
> Sent: 15 July 2018 04:56
> To: cctalk@classiccmp.org
> Subject: Re: GoTEK SFR1M44-U100...
>
> On 07/14/2018 05:54 PM, Chuck Guzis via cctalk wrote:
> > There are many more forg
On Sat, Jul 14, 2018 at 10:22 PM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> So has any of the firmware writers for the GoTek implemented the Victor
> 9000 scheme (zoned+GCR) yet? Just curious.
>
I have a Victor 9000, so I've been meaning to add support to fluxtoimd to
be able to e
On 7/14/2018 6:29 PM, Chuck Guzis via cctalk wrote:
On 07/14/2018 05:05 PM, Fred Cisin via cctalk wrote:
Stringy Floppy is best forgotten.
Along with TI wafertape and similar nonsense.
I always liked the 8 track tape idea for a home brew system.
Never got around to it however.
Ben.
On Sat, 14 Jul 2018, Grant Taylor via cctalk wrote:
Wow.
I had no idea that there was a 5??" disk that held more than 1.2 MB.
So much history that I'm sure is being lost to time.
Just by going to 10 sectors per track (as Kaypro, Otrona, etc. did), or
switching to 5 1024 byte sectors, upped a
On 07/14/2018 08:56 PM, Grant Taylor via cctalk wrote:
> I had no idea that there was a 5¼" disk that held more than 1.2 MB.
>
> So much history that I'm sure is being lost to time.
So has any of the firmware writers for the GoTek implemented the Victor
9000 scheme (zoned+GCR) yet? Just curiou
On 07/14/2018 05:54 PM, Chuck Guzis via cctalk wrote:
There are many more forgotten floppy formats than most realize--for
example, the Drivetec/Kodak 5.25" 2.8MB and 6MB formats.
Wow.
I had no idea that there was a 5¼" disk that held more than 1.2 MB.
So much history that I'm sure is being lo
a, as one word, rather then sending FM a bit at a time.
Dwight
From: cctalk on behalf of Chuck Guzis via
cctalk
Sent: Saturday, July 14, 2018 5:29:53 PM
To: Fred Cisin via cctalk
Subject: Re: GoTEK SFR1M44-U100...
On 07/14/2018 05:05 PM, Fred Cisin via c
> > Stringy Floppy is best forgotten.
>
> Along with TI wafertape and similar nonsense.
I've got one of those. Fun, when it works (there's always a moment of
panic to see if it feels like working).
--
personal: http://www.cameronkaiser.com/ --
Cameron Kais
On 07/14/2018 05:05 PM, Fred Cisin via cctalk wrote:
> Stringy Floppy is best forgotten.
Along with TI wafertape and similar nonsense.
The floppy disk has an "index" hole and sensor.
HARD sector disks have one hole per sector.
SOFT sector disks have only one hole, and divide the track into sectors in
software.
. . . and Apple and Commodore used soft-sectored, but do not use the index
hole, so the track can begin at any rotati
On 07/14/2018 04:04 PM, Grant Taylor via cctalk wrote:
> It's my understanding that MS-DOS was one of the earlier OSs to
> standardize file systems used across disks for various computer
> manufacturers. There were still some physical differences though.
Well, yes and no. NEC really is the trai
On Sat, 14 Jul 2018, Grant Taylor via cctalk wrote:
I had a vague sense that different OSs had different types of floppy drives.
I've also heard of hard vs soft sector drives, but I have no idea what the
difference is.
The floppy disk has an "index" hole and sensor.
HARD sector disks have one
On 07/14/2018 04:40 PM, Adrian Graham via cctalk wrote:
Since I got my first Gotek last year I've learned more about floppy
drives and disks than I ever thought would be neccesary but there's SO
many different formats out there that I never knew about.
Yep.
I expect that I will be learning th
>>On 07/14/2018 02:43 PM, Adrian Graham via cctalk wrote:
> I love them, I see FlashFloppy has also been mentioned which is also
> excellent. Keir Fraser (flashfloppy) is constantly updating it to add new
> support for formats suggested by folk either on the facebook group or on
> the github repos
On 07/14/2018 02:43 PM, Adrian Graham via cctalk wrote:
I love them, I see FlashFloppy has also been mentioned which is also
excellent. Keir Fraser (flashfloppy) is constantly updating it to add new
support for formats suggested by folk either on the facebook group or on
the github repository.
>>Does anyone have any experience with the GoTEK SFR1M44-U100 floppy drive
emulator that reads ""images from a USB flash drive?
I love them, I see FlashFloppy has also been mentioned which is also
excellent. Keir Fraser (flashfloppy) is constantly updating it to add new
sup
On 07/13/2018 09:44 PM, Chuck Guzis via cctalk wrote:
Actually, given that allocation is in fixed units, it would be pretty
simple to plug in a valid partition table and dummy FAT32 filesystem
image with the disk space pre-allocated on the USB flash.
Possibly.
I would want to likely use mount
On 07/13/2018 07:57 PM, Grant Taylor via cctalk wrote:
> On 07/13/2018 04:13 PM, Chuck Guzis via cctalk wrote:
>> http://torlus.com/floppy/forum/viewtopic.php?t=1683
>
> Thank you.
Please ignore my earlier non-reply--I hit the wrong button.
Actually, given that allocation is in fixed units, it w
On 07/13/2018 07:57 PM, Grant Taylor via cctalk wrote:
> On 07/13/2018 04:13 PM, Chuck Guzis via cctalk wrote:
>> http://torlus.com/floppy/forum/viewtopic.php?t=1683
>
> Thank you.
>
>> In the as-provided form, it's just a bunch of sector-by-sector data
>> written to a predefined set of addresses
On 07/13/2018 04:13 PM, Chuck Guzis via cctalk wrote:
http://torlus.com/floppy/forum/viewtopic.php?t=1683
Thank you.
In the as-provided form, it's just a bunch of sector-by-sector data
written to a predefined set of addresses on the flash drive. No file
system at all.
Reading about the SF
On Fri, Jul 13, 2018 at 11:42 PM, Chuck Guzis via cctalk
wrote:
>
> On the other hand, if you want to use this with more general floppy
> images, you can install the HxC firmware which supports lots of formats.
>
Or FlashFloppy firmware: https://github.com/keirf/FlashFloppy
HTH
--
Regards,
Torfi
On 07/13/2018 02:50 PM, Grant Taylor via cctalk wrote:
> I was wondering what images looked like on the USB flash drive. I found
> a couple of pages that talk about the SFR1M44-U100 using it's own
> storage format (that probably doesn't even qualify as a file system).
> I've also found tools and
On 07/13/2018 03:42 PM, Chuck Guzis via cctalk wrote:
Yup, got a few of them here. Depends on your needs. If what you need
is something that supports bog-standard 2x18x512 "1.44M" floppy images,
it's pretty decent right out of the box.
Cool!
It uses an STM32F105 MCU and some stuff to acco
On 07/13/2018 02:12 PM, Grant Taylor via cctalk wrote:
> Does anyone have any experience with the GoTEK SFR1M44-U100 floppy drive
> emulator that reads ""images from a USB flash drive?
>
> Good?
> Bad?
> Indifferent?
> Run for the hills?
Yup, got a few of them here
Does anyone have any experience with the GoTEK SFR1M44-U100 floppy drive
emulator that reads ""images from a USB flash drive?
Good?
Bad?
Indifferent?
Run for the hills?
--
Grant. . . .
unix || die
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