From rivanov@inria.fr Sat Oct 22 02:57:12 1994
Path: ashpoly!cascade!transat!eunet-de!hansebox!inria!rivanov
From: rivanov@inria.fr (Rodrigo Ivanov)
Newsgroups: comp.sys.m68k
Subject: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1994Oct22.025712.3631@inria.fr>
Date: Sat, 22 Oct 1994 02:57:12 GMT
Organization: INRIA Rocquencourt
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Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.

The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank.
Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'.

Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot?

-- 
=== Rodrigo Ivanov ===
Dept of Electrical Engineering, INRIA Rocquencourt
"Row 14. No joke."

From mgirard@utexas.edu Sun Oct 23 10:06:12 1994
Path: ashpoly!bigsur!pacrim!jpgate!kamome!utexas!mgirard
From: mgirard@utexas.edu (Marisol Girard)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1994Oct23.100612.6581@utexas.edu>
Date: Sun, 23 Oct 1994 10:06:12 GMT
References: <1994Oct22.025712.3631@inria.fr>
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In article <1994Oct22.025712.3631@inria.fr>, rivanov@inria.fr (Rodrigo Ivanov) writes:
> Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.
> The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank.

Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP?

-- 
Marisol Girard | mgirard@utexas.edu
PGP Key fingerprint: E02E 05C9 0430 257A
"Keep the channels open."

From gdubois@kth.se Tue Oct 25 00:48:12 1994
Path: ashpoly!cascade!transat!ukc!fennimore!kth!gdubois
From: gdubois@kth.se (Göran Dubois)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1994Oct25.004812.8975@kth.se>
Date: Tue, 25 Oct 1994 00:48:12 GMT
References: <1994Oct22.025712.3631@inria.fr> <1994Oct23.100612.6581@utexas.edu>
Organization: Royal Institute of Technology, Stockholm
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In article <1994Oct23.100612.6581@utexas.edu>, mgirard@utexas.edu (Marisol Girard) writes:
> Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP?

Tom from Ashford Poly owns the physical board! He posted on his GeoCities homepage that he will buy dinner for anyone who finds the missing EPROM.

-- 
Göran Dubois -- Royal Institute of Technology, Stockholm
"Hold for relay."