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From: whit@milton.u.washington.edu (John Whitmore)
Newsgroups: sci.electronics
Subject: Re: SASI = SCSI?
Message-ID: <17334@milton.u.washington.edu>
Date: 28 Feb 91 01:31:26 GMT
References: <86715@unix.cis.pitt.edu>
Organization: University of Washington, Seattle
Lines: 20

In article <86715@unix.cis.pitt.edu> kwgst@unix.cis.pitt.edu (Filip Gieszczykiewicz) writes:
>
>	Now, someone told me that the SASI interface is a relative
>	of SCSI. Does anyone know if I can hook up a hard drive
>	to the ST506 side and the SASI side to a Macintosh and
>	expect this to work? 

	SASI uses one less wire than SCSI; if you make sure that
this wire (/ATN, pin 17 on the Macintosh DB-25) is not kept 
grounded by your SASI box, then it should be possible to 
use nonstandard SCSI drivers (of which several are floating around)
to read/write to your SASI controller. 
	The command set, however, of SCSI is well established; SASI
is likely to be missing some part of the 'common command set',
and you will need to know how to write a driver that works
around this problem.
	I don't know of anyone who's actually done this, but the
subject does come up from time to time.

	John Whitmore