[comp.sys.amiga.hardware] AT/Once on the 1000

v078p6g8@ubvmsb.cc.buffalo.edu (Richard M Wasserman) (02/08/91)

	I know its been asked about here and there but I've never seen a 
definitive answer - Can AT/Once be used in a A1000 and if so what are the
limitations, extras needed.  Thanks alot for any info - if there is any info
I'll compile it and post it all together.
			'nuff said

					Rich Wasserman
					v078p6g8 @ UBVM

doctorj@en.ecn.purdue.edu (Jeffrey W Davis) (02/08/91)

In article <58508@eerie.acsu.Buffalo.EDU> v078p6g8@ubvmsb.cc.buffalo.edu writes:
>	I know its been asked about here and there but I've never seen a 
>definitive answer - Can AT/Once be used in a A1000 and if so what are the

Since the AT/Once apparently only connects through the 68000 socket, there
should be no problem.  A 68000 signals are identical on all of the
machines.  In fact, I see no reason why the AT/Once cannot be used on
ANY 68000 based machine, provided you port the software also.

Whatever you plug into the 68000 socket must look, smell, and react like
a 68000.  The 286 on the AT/Once must be accessed as a peripheral to the
68000.  Whatever they have done, it seems to be the simplest way to do
it since I can only see a few support IC's.

I would suspect that if you unsolder the 68000 provided on AT/Once and
replace it with a socket, an accellerator (Lucas) could possibly be
utilized also.  Of course the stack of boards could get pretty high!

These are only my opinions and experiences.  No Flames!
Of course, helpful information will be appreciated.
***********************************************************
* Jeff Davis                * Relax! And get into    ///  *
* doctorj@en.ecn.purdue.edu * the STRESS!!!         ///   *
*                           *    A1000          \\\///030 *
*                           * -Gigahertz!-  Amiga\XX/ 882 *
***********************************************************
	    -=[ In Stereo Where Available ]=-

maniac@magic.cs.unlv.edu (Eric J. Schwertfeger) (02/08/91)

In article <1991Feb7.231236.17880@en.ecn.purdue.edu>, doctorj@en.ecn.purdue.edu (Jeffrey W Davis) writes:
) I would suspect that if you unsolder the 68000 provided on AT/Once and
) replace it with a socket, an accellerator (Lucas) could possibly be
) utilized also.  Of course the stack of boards could get pretty high!

	Sounds like a situation I'll be facing soon :-)
	I've got an EXP1000 (1Meg Ram) under the CPU already, and 
I'm planning on adding an ADIDE hd interface and AT-Once to it.  I'll probably have to pull the keyboard out of the case to make room, and 
install the MotherBoard in an IBM clone tower case.  Just the excuse I've been waiting for!  :-)


-- 
Eric J. Schwertfeger, maniac@jimi.cs.unlv.edu

monty@sagpd1 (02/14/91)

In article <1991Feb7.231236.17880@en.ecn.purdue.edu> doctorj@en.ecn.purdue.edu (Jeffrey W Davis) writes:

>>	I know its been asked about here and there but I've never seen a 
>>definitive answer - Can AT/Once be used in a A1000 and if so what are the
>
>Since the AT/Once apparently only connects through the 68000 socket, there

    Partly true.. There is also a an adapter involving "buster" (I think it
    was buster -- it was last month at our users group that it was demoed)
    that increases the speed. With out this change the AT runs at a reduced
    speed/efficency.  I think the speed quoted was Norton 2.0, or at least
    in that range.

    The people demoing ATonce said it would work in a A1000 with the above 
    speed reduction. An AT running at twice the speed of a IBM XT is not very
    impressive though.


    For what it's worth....

    Monty Saine