On 2023-09-08 20:08, Chuck Guzis via cctalk wrote:
I use a STM32F4 MCU for my floppy work (and my tape work also). Half a
meg of program flash and 192KB of SRAM on-chip, running at 168MHz. But
my interface is strictly by image file. The USB connection is strictly
for file transfer and termin
On 9/8/23 15:20, Fred Cisin via cctalk wrote:
pretty well and BIOS/ancient OSes not at all! 😅
>
> It would still be handy to have a USB device that operates as a "normal"
> fully functional FDC.
> It would make it possible to add floppies to devices without them,
> and/or add more or different fl
On 9/8/23 15:00, Anders Nelson via cctalk wrote:
> Hi Chuck,
>
> The drive is a Qume Qumetrak 242 so I assume soft sector? I'm open to
> correction.
>
Mostly. Most drives can, with the proper logic be made to read and
write hard-sector disks. You just don't get separate SECTOR/ and INDEX/
outpu
On Fri, 8 Sep 2023, Bill Degnan via cctalk wrote:
I have had better luck with a P-III motherboard that connects to the 34-50
pin adapter in the middle and 8" on the other end. This way you can trick
the BIOS of the computer to think the 8" drive is a 1.2Mb 5 1/4". With
this set up I have made a
I have had better luck with a P-III motherboard that connects to the 34-50
pin adapter in the middle and 8" on the other end. This way you can trick
the BIOS of the computer to think the 8" drive is a 1.2Mb 5 1/4". With
this set up I have made a bootable DOS 6.22 8" disk, so I know it works.
THEN
It would still be handy to have a USB device that operates as a "normal"
fully functional FDC.
On Fri, 8 Sep 2023, Anders Nelson wrote:
I agree, and that generic USB FDC is already available:
https://github.com/dhansel/ArduinoFDC
If I can simply select 5 1/4 floppy mode and it'll work with an 8
I agree, and that generic USB FDC is already available:
https://github.com/dhansel/ArduinoFDC
If I can simply select 5 1/4 floppy mode and it'll work with an 8" disk, I
guess I don't need anything else?
On Fri, Sep 8, 2023, 6:20 PM Fred Cisin via cctalk
wrote:
> but presents itself to an
but presents itself to an OS as a Mass Storage Device (block device).
Anders, for what practical purpose would you do that?
It’s not like there’s so many 8 inch floppies around to make it feasible.
You would have to have a LOT of intelligence in the Usb interface due to
the different physical f
Hi Chuck,
The drive is a Qume Qumetrak 242 so I assume soft sector? I'm open to
correction.
On Fri, Sep 8, 2023, 4:15 PM Fred Cisin via cctalk
wrote:
> On Fri, 8 Sep 2023, Anders Nelson via cctalk wrote:
> > Hi all,
> > I just bought a very clean, DSDD 8" disk drive off eBay and it has a 50p
>
Hi Wayne,
For sure the controller would have to do a lot more, but I know firmware
pretty well and BIOS/ancient OSes not at all! 😅
On Fri, Sep 8, 2023, 4:22 PM Wayne S via cctalk
wrote:
>
>
> Sent from my iPhone
>
> > On Sep 8, 2023, at 13:16, Wayne S wrote:
> >
> >> but presents itself to an
Sent from my iPhone
> On Sep 8, 2023, at 13:16, Wayne S wrote:
>
>> but presents itself to an OS as a Mass Storage Device (block device).
Anders, for what practical purpose would you do that?
It’s not like there’s so many 8 inch floppies around to make it feasible. You
would have to have a
Sent from my iPhone
> On Sep 8, 2023, at 13:15, Fred Cisin via cctalk wrote:
>
> On Fri, 8 Sep 2023, Anders Nelson via cctalk wrote:
>> Hi all,
>> I just bought a very clean, DSDD 8" disk drive off eBay and it has a 50p
>> connector which I guess is the common Shugart type? I also found a 50p
On Fri, 8 Sep 2023, Anders Nelson via cctalk wrote:
Hi all,
I just bought a very clean, DSDD 8" disk drive off eBay and it has a 50p
connector which I guess is the common Shugart type? I also found a 50p->
34p adaptor PCB design someone documented online.
very few of the lines need to be rearra
On 9/8/23 12:58, Anders Nelson via cctalk wrote:
> Hi all,
>
> I just bought a very clean, DSDD 8" disk drive off eBay and it has a 50p
> connector which I guess is the common Shugart type? I also found a 50p->
> 34p adaptor PCB design someone documented online.
>
> I haven't delved much into flo
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