Groups
Conversations
All groups and messages
Send feedback to Google
Help
Sign in
Groups
MFM Discuss
Conversations
MFM Discuss
1–30 of 115
This groups is for support and discussion of the MFM disk reader/emulator project
http://www.pdp8online.com/mfm.
Mark all as read
Report abusive group
0 selected
Tom Stepleton
,
David Gesswein
7
Jun 4
Preparing to microstep my Rodime RO202E
> 1. Does it also look to you like the stepper wiring is reversed? > Looks like the stepper is
unread,
Preparing to microstep my Rodime RO202E
> 1. Does it also look to you like the stepper wiring is reversed? > Looks like the stepper is
Jun 4
d...@pdp8online.com
,
Xolod
3
Jun 4
Fixed failing to read NEC drive.
I confirm the work of the NEC D5124 disk with the new version! воскресенье, 4 июня 2023 г. в 18:23:15
unread,
Fixed failing to read NEC drive.
I confirm the work of the NEC D5124 disk with the new version! воскресенье, 4 июня 2023 г. в 18:23:15
Jun 4
hupfadekroua
,
David Gesswein
6
May 11
Emulator locks boot on QBus PDP11
Ok, will give this a try this weekend. d...@pdp8online.com schrieb am Donnerstag, 11. Mai 2023 um 18:
unread,
Emulator locks boot on QBus PDP11
Ok, will give this a try this weekend. d...@pdp8online.com schrieb am Donnerstag, 11. Mai 2023 um 18:
May 11
Adam Billyard
, …
David Gesswein
6
May 3
Recommended archive for LKG pristine emufiles
To understand how those tracks get wrong format we would need to capture the data when formatting
unread,
Recommended archive for LKG pristine emufiles
To understand how those tracks get wrong format we would need to capture the data when formatting
May 3
Adam Billyard
,
David Gesswein
6
Apr 30
logfile.txt content on Write Error.
On Sun, Apr 30, 2023 at 06:17:58PM +0100, 'Adam Billyard' via MFM Discuss wrote: > >
unread,
logfile.txt content on Write Error.
On Sun, Apr 30, 2023 at 06:17:58PM +0100, 'Adam Billyard' via MFM Discuss wrote: > >
Apr 30
Marko Štamcar
, …
Forgotten Machines
9
Apr 18
Iskra Delta Triglav (Trident) computer [Slovenia/Yugoslavia] - MFM drives archived using this hardware
This is wonderful...thank you so much or sharing, and keep up the great work!!! Best always, AJ
unread,
Iskra Delta Triglav (Trident) computer [Slovenia/Yugoslavia] - MFM drives archived using this hardware
This is wonderful...thank you so much or sharing, and keep up the great work!!! Best always, AJ
Apr 18
Adam Billyard
, …
d...@pdp8online.com
15
Apr 11
I/O error on root device
On Tuesday, April 11, 2023 at 7:14:54 AM UTC-4 Adam wrote: Is there a part of the MFM protocol that
unread,
I/O error on root device
On Tuesday, April 11, 2023 at 7:14:54 AM UTC-4 Adam wrote: Is there a part of the MFM protocol that
Apr 11
Jay Maynard
, …
Joan Touzet
6
Mar 26
New user, basic questions
Got it running! I found a mini-USB cable that was probably sent with the board (thanks, Joan!), and
unread,
New user, basic questions
Got it running! I found a mini-USB cable that was probably sent with the board (thanks, Joan!), and
Mar 26
hupfadekroua
,
David Gesswein
4
Mar 5
Supressing output of mfm_emu
On Sun, Mar 05, 2023 at 12:46:45PM -0800, hupfadekroua wrote: > The emu file is stored on the emmc
unread,
Supressing output of mfm_emu
On Sun, Mar 05, 2023 at 12:46:45PM -0800, hupfadekroua wrote: > The emu file is stored on the emmc
Mar 5
hupfadekroua
,
Nigel Johnson
3
Mar 4
RT11 MFM Emulator images
Hi Nigel, yes, I'm interested. I do have an image of RSX11M-PLUS of an SCSI drive which I'm
unread,
RT11 MFM Emulator images
Hi Nigel, yes, I'm interested. I do have an image of RSX11M-PLUS of an SCSI drive which I'm
Mar 4
Jay Cotton
, …
cro memcos
4
Feb 20
Emulate 2 drives at the same time ?
Yep that's it. Now a point to note, both disks seem to need to be the same tracks and heads. jc
unread,
Emulate 2 drives at the same time ?
Yep that's it. Now a point to note, both disks seem to need to be the same tracks and heads. jc
Feb 20
cro memcos
,
David Gesswein
3
Feb 12
Listing and Extracting Cromemco Files
David, I am more talking about the fact (read article) that Damian's java cromix-fs can take an
unread,
Listing and Extracting Cromemco Files
David, I am more talking about the fact (read article) that Damian's java cromix-fs can take an
Feb 12
Forgotten Machines
,
David Gesswein
4
Jan 28
Best command line to read flux no matter what
Since it isn't decoding the sector headers in the command form below it has no way of knowing
unread,
Best command line to read flux no matter what
Since it isn't decoding the sector headers in the command form below it has no way of knowing
Jan 28
geka...@gmail.com
,
David Gesswein
3
12/30/22
beaglebone versions?
Perfect, thanks! On Fri, Dec 30, 2022 at 1:06 PM David Gesswein <d...@pdp8online.com> wrote: The
unread,
beaglebone versions?
Perfect, thanks! On Fri, Dec 30, 2022 at 1:06 PM David Gesswein <d...@pdp8online.com> wrote: The
12/30/22
Andrei Kudryavtsev
,
David Gesswein
3
12/11/22
Lecroy 7200 MFM drive replacement
Thank you David, DREM is clearly the option, but it's $300 which I'm not sure it's worth
unread,
Lecroy 7200 MFM drive replacement
Thank you David, DREM is clearly the option, but it's $300 which I'm not sure it's worth
12/11/22
tronix286
, …
Forgotten Machines
20
12/11/22
MFM Reader (dumper) on Raspbery pico?
tronix286, Thank you for being willing to publish your code, and thank you for the disclaimers about
unread,
MFM Reader (dumper) on Raspbery pico?
tronix286, Thank you for being willing to publish your code, and thank you for the disclaimers about
12/11/22
Convergent MightyFrame
, …
A M
6
12/8/22
Ran out of data on sector index 32, try reading with --begin_time 537xxx
Yeah, I think that's clearer. Thanks! -- Aaron On Thursday, December 8, 2022 at 9:18:30 AM UTC-6
unread,
Ran out of data on sector index 32, try reading with --begin_time 537xxx
Yeah, I think that's clearer. Thanks! -- Aaron On Thursday, December 8, 2022 at 9:18:30 AM UTC-6
12/8/22
cro memcos
, …
David Gesswein
4
10/2/22
Sending you a file?
I released a new version which should get rid of the spurious messages.
unread,
Sending you a file?
I released a new version which should get rid of the spurious messages.
10/2/22
Marko Štamcar
,
Paul Devine
2
10/1/22
Iskra Delta Partner CP/M computer - Slovenian Computer Museum looking for help in archiving the data off 2 Shugart 712 MFM drives
Marko, You might think about cross posting this request to the Vintage Computer Federation forums.
unread,
Iskra Delta Partner CP/M computer - Slovenian Computer Museum looking for help in archiving the data off 2 Shugart 712 MFM drives
Marko, You might think about cross posting this request to the Vintage Computer Federation forums.
10/1/22
m
,
David Gesswein
4
9/8/22
Using the Emulator as a test rig ?
On Thu, Sep 08, 2022 at 01:49:11PM -0700, marcus wrote: > > So with regard to the --begin_time
unread,
Using the Emulator as a test rig ?
On Thu, Sep 08, 2022 at 01:49:11PM -0700, marcus wrote: > > So with regard to the --begin_time
9/8/22
francesco franzini
,
David Gesswein
4
7/20/22
HP7957 emulation on HP9000/300 system
This seems to have a reasonable amount of info. http://www.hpmuseum.net/document.php?hwfile=5043 On
unread,
HP7957 emulation on HP9000/300 system
This seems to have a reasonable amount of info. http://www.hpmuseum.net/document.php?hwfile=5043 On
7/20/22
Jay Cotton
,
David Gesswein
2
6/28/22
MFM Emulator ready bit
The read line goes low when the drive is selected. Assuming your using --drive 1 P7 sets what drive
unread,
MFM Emulator ready bit
The read line goes low when the drive is selected. Assuming your using --drive 1 P7 sets what drive
6/28/22
John Dammeyer
,
David Gesswein
4
6/2/22
Glitch Count
On Thu, Jun 02, 2022 at 03:22:11PM -0700, John Dammeyer wrote: > Oh and I'm running the entire
unread,
Glitch Count
On Thu, Jun 02, 2022 at 03:22:11PM -0700, John Dammeyer wrote: > Oh and I'm running the entire
6/2/22
Forgotten Machines
, …
David Gesswein
9
5/31/22
Building ST506 to CDC "Finch" drive hardware interface
On Tue, May 31, 2022 at 01:01:25PM -0700, Forgotten Machines wrote: > Thanks for this insight,
unread,
Building ST506 to CDC "Finch" drive hardware interface
On Tue, May 31, 2022 at 01:01:25PM -0700, Forgotten Machines wrote: > Thanks for this insight,
5/31/22
Al Kossow
,
David Gesswein
2
5/3/22
acb 4000 bad block behavior
On Tue, May 03, 2022 at 12:54:22PM -0700, Al Kossow wrote: > I just read a quantum 540 that was
unread,
acb 4000 bad block behavior
On Tue, May 03, 2022 at 12:54:22PM -0700, Al Kossow wrote: > I just read a quantum 540 that was
5/3/22
ich.c...@gmail.com
,
David Gesswein
6
4/30/22
Formating error - Drive 0 Cyl X -> Y select 1, head 0 dirty f
On Sat, Apr 30, 2022 at 02:03:52PM -0700, ich.c...@gmail.com wrote: > Other case : > Just this
unread,
Formating error - Drive 0 Cyl X -> Y select 1, head 0 dirty f
On Sat, Apr 30, 2022 at 02:03:52PM -0700, ich.c...@gmail.com wrote: > Other case : > Just this
4/30/22
Forgotten Machines
,
David Gesswein
2
4/12/22
Coaxing more sectors & tracks from a bad ST-251
On Tue, Apr 12, 2022 at 02:03:44AM -0700, Forgotten Machines wrote: > > ./mfm_util -I -t ../
unread,
Coaxing more sectors & tracks from a bad ST-251
On Tue, Apr 12, 2022 at 02:03:44AM -0700, Forgotten Machines wrote: > > ./mfm_util -I -t ../
4/12/22
Forgotten Machines
, …
Joan Touzet
5
4/10/22
Using the BBGW MicroSD card for direct-access emulation files
Looks good. On 2022-04-10 6:24 pm, Forgotten Machines wrote: Thank you both, David & Joan for
unread,
Using the BBGW MicroSD card for direct-access emulation files
Looks good. On 2022-04-10 6:24 pm, Forgotten Machines wrote: Thank you both, David & Joan for
4/10/22
Paul Devine
,
David Gesswein
5
3/12/22
Help with low level format on Victor 9000
Also, should have started with a HUGE thank you to David. Thanks so much for all your great work in
unread,
Help with low level format on Victor 9000
Also, should have started with a HUGE thank you to David. Thanks so much for all your great work in
3/12/22
Terry Fox
, …
David Gesswein
8
2/12/22
Using HDD emulator in a Kaypro 10?
On Sat, Jan 08, 2022 at 04:09:43PM -0800, Brian Jones wrote: > Can anyone that's used this
unread,
Using HDD emulator in a Kaypro 10?
On Sat, Jan 08, 2022 at 04:09:43PM -0800, Brian Jones wrote: > Can anyone that's used this
2/12/22