[sebhc] Re: Great Idea for IDE MORE!! STATUS -- More Ideas ..

[Mark Garlanger]

On 10/9/06, Lee Hart <leeahart at earthlink.net> wrote:
> West, Ronald S. wrote:
> > I have an idea. How about a stand-alone interface device (using
> > a PIC or something) that adapts an IDE hard drive to the H67 port.
> > We wouldn't have to change any ROMs or write any device drivers
> > for it. It would function as an H67 disk as far as the OS was
> > concerned.
>
> It's even simpler than that. Get a SCSI hard drive, and it will plug
> right into the H67 interface. If the SCSI drive is formatted to 10 megs,
> it will work with the existing Heath PART and PREP software.
>

That may be simplier, but probably will still require some work. I was
searching for some more information on SASI drives and came across a
couple of pages that stated or implied a conversion may be needed. On
this page they describe their SASI or SCSI 1 to SCSI adapter:

http://www.peripheral-vision.com/pdf/ss1.pdf

On this other page, it shows that of the drives that are available,
only one states that it's compatible with SASI. Two other ones state
"We support the drive in SCSI-2 systems and in some SASI systems." The
others ones state "installable only in SCSI-2 systems. Operation in
SASI systems is not supported."

http://www.alphamicroproducts.com/mktbultn/98-16.pdf

Here it states: "Part of the original SCSI interface was based on
SASI. However, second generation SCSI eliminated most of the SASI
specifications."

http://cynosurex.granax.com/SCSI/SCSI_Introduction.html

In addition to finding the right drive, you will also have to build
the cable since it's not the same pin-out (or even number of pins).


Mark
--
Delivered by the SEBHC Mailing List