ide harddrive

From: ajp166 <ajp166_at_bellatlantic.net>
Date: Wed Mar 28 20:43:19 2001

From: Richard Erlacher <edick_at_idcomm.com>

>I've seen, and, in fact, own, several parallel port to SCSI interfaces,
but
>never a parallel port to IDE type. It's quite conceivable, though. The
>software would be a pain, however.


I have one for Parallel to 3.5" IDE and another for parallel to 2.5" ide.
They work quite well and are much faster than zip or jazz drives.

Also with ECP or EPP the transfers are 8bit bidirectional. The logic
to do that is fairly simple as you simply stack up bytes or half bytes
until you have a 16bit word to write and to read you reverse that to
move successive chunks.

Allison


>From: "Russ Blakeman" <rhblake_at_bigfoot.com>
>To: <classiccmp_at_classiccmp.org>
>Sent: Wednesday, March 28, 2001 5:32 AM
>Subject: RE: ide harddrive
>
>
>> I thought I've seen external cases for IDE HDD's off parallel ports
before,
>> I'll have to run back through my feeble memory banks and figure out
where I
>> saw one.
>>
>> > -----Original Message-----
>> > From: owner-classiccmp_at_classiccmp.org
>> > [mailto:owner-classiccmp_at_classiccmp.org]On Behalf Of Clint Wolff
(VAX
>> > collector)
>> > Sent: Tuesday, March 27, 2001 11:33 PM
>> > To: classiccmp_at_classiccmp.org
>> > Subject: Re: ide harddrive
>> >
>> >
>> >
>> > it'd be a fairly complicated schematic... The IDE interface is 16
bit
>> > wide data, and a standard parallel port only has four bits of input.
>> > An enhanced parallel port (EPP) can turn the data bits around, but
>> > then you don't have any lines for RD*/WR*/A0-A2/CS1Fx*CS3Fx*, etc...
>> >
>> > I certainly wouldn't want to do it, though I'm sure it can be
done...
>> >
>> > clint
>> >
>> > On Tue, 27 Mar 2001, bill claussen wrote:
>> >
>> > > Evening folks, I am looking for a circuit using the parallel port
on a
>> > > pc to Ide interface, does anyone have a schematic for one?
>> > >
>> > > I also have 20 (2.5 in) toshiba 4.8 gig drives (new and in sealed
>> > > antistatic). these are 2 mm interface ata4 44pin that I will
offer to
>> > > sell to the group before listing them at ebay. ($75 ea + shipping)
>> > >
>> > > I also have AMD K6-2 233 AFR Socket 7 processors (new) these also
will
>> > > be offered to the group for ($20 ea), before I place them on ebay
as
>> > > well.
>> > >
>> > > I am going to put them up in two weeks, so if any one is
interested
>> > > please email me at
>> > > elecdata_at_kcinter.net
>> > >
>> > > Thanks
>> > >
>> > > Bill Claussen
>> > > Elecdata1 (ebay)
>> > >
>> > >
>> > >
>> > >
>> > >
>> >
>> >
>> >
>>
>>
>
Received on Wed Mar 28 2001 - 20:43:19 BST