20 Mar
2007
20 Mar
'07
3:29 p.m.
Hi Guys,
I've just posted to my site TESTFDC 1.0, which is a small utility that
will test your floppy controller for single/double density operation at
all data rates available to your drives - including the special case of
MFM with 128 byte sectors (Of all the machines I've got here, only ONE
passes that test!).
This should make it a bit easier to find PC/drive combinations that will
work with ImageDisk.
I've also started a "registry" of mainboards and add-in controllers with
the TESTFDC results - this is posted to the site as well, currently it's
very small and not overly useful (just the hardware I've tested), however
I hope that with your help it may grow to be at least somewhat useful.
If anyone can provide information for hardware not currently listed, that
would be very much appreciated.
Regards.
Dave
--
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.classiccmp.org/dunfield/index.html
21 Mar
21 Mar
5:43 a.m.
On Tue, 20 Mar 2007, Dave Dunfield wrote:
If anyone can provide information for hardware not
currently listed, that
would be very much appreciated.
Please have a look at my posting from Thu, 23 Mar 2006, subject
"Re: ImageDisk / PC FDCs & single-density".
Arranged into your format, this would be:
Data rate
250 300 500
Manufacturer FDC chip SDX SDX SDX
-------------------------------------------
Acer M5105 PPP NPN PPN
Intel i82072 PPF NPF PPF
Intel i82077 FPF FPF FPF
Nat.Semi. DP8473 PPP NPN PPN
SMC Super I/O PPF NPF PPF
WD WD37C65 PPF NPF PPF
Winbond W83757 FPF FPF FPF
As these were mostly add-on ISA cards (what else ;-) there are no
mainboard manufacturers and models, and no CPU class; the same card worked
in different class PCs (testet with 80386SX-20, P5/60 and P5/100 systems).
Christian
10:57 a.m.
On Tue, 20 Mar 2007, Dave Dunfield wrote:
Hi Christian,
Thanks for the information - I'm going to create a second listing in my file
for "incomplete" information - Often there are other factors in the design
in addition to the FDC chip which affect the capibilities of the system as a
whole, so I think it's worthwhile noting the actual board and model tested.
The reason I list the FDC chip however is because they are one of the most
important factors in determining floppy capabilities, and I wanted to give
people enough information to "comparison select" - (humm.. I don't have
any of these boards, but I have one with this FDC which seems to work on
several other boards - It might be a good candidate).
For IO cards, I plan to use a class of 'IO' - I'll list these as '?'
since it
appears to be a mix of I/O cards and mainboard FDCs - unless you can clairify
it further.
Regards,
Dave
--
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.classiccmp.org/dunfield/index.html
If anyone can provide information for hardware
not currently listed, that
would be very much appreciated.
Please have a look at my posting from Thu, 23 Mar 2006, subject
"Re: ImageDisk / PC FDCs & single-density".
Arranged into your format, this would be:
Data rate
250 300 500
Manufacturer FDC chip SDX SDX SDX
-------------------------------------------
Acer M5105 PPP NPN PPN
Intel i82072 PPF NPF PPF
Intel i82077 FPF FPF FPF
Nat.Semi. DP8473 PPP NPN PPN
SMC Super I/O PPF NPF PPF
WD WD37C65 PPF NPF PPF
Winbond W83757 FPF FPF FPF
As these were mostly add-on ISA cards (what else ;-) there are no
mainboard manufacturers and models, and no CPU class; the same card worked
in different class PCs (testet with 80386SX-20, P5/60 and P5/100 systems).
6328
days inactive
6329
days old
2 comments
2 participants
participants (2)
-
cc＠corti-net.de -
dave06a＠dunfield.com