7 May
2013
7 May
'13
2:02 p.m.
On May 7, 2013, at 1:33 PM, Chuck Guzis <cclist at sydex.com> wrote:
On 05/07/2013 09:38 AM, Cindy Croxton Electronics Plus
wrote:
Oh, I see. You can definitely do THAT with an FPGA talking PCI; since PCI
is an architecture designed for PCs, it certainly supports the concept of
I/O space (much to the consternation of the non-x86 world, which by and
large doesn't do I/O space and has to emulate it somehow). If you made a
standard floppy controller and set up your PCI configuration space to
specify the proper I/O port and such, you could definitely make that work
with DOS just fine.
Is that what you were talking about, Al?
- Dave
On the other hand, there are plenty of PCI cards
that control both floppy
and IDE drives, but not SCSI.
I've never seen one--at least not one that supports "legacy" floppy
interfaces (e.g. DMA 2, IRQ 6, port 3Fx). I suppose that one could be built using a
PCI-to-ISA bridge, but that's not a project I'd be eager to undertake.