From nsuzuki@kth.se Mon Apr 17 14:44:25 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kth!nsuzuki
From: nsuzuki@kth.se (Nadia Suzuki)
Newsgroups: comp.sys.m68k
Subject: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Apr17.144425.1405@kth.se>
Date: Mon, 17 Apr 1995 14:44:25 GMT
Organization: Royal Institute of Technology, Stockholm
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Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.

Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'.
At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.

Schematic diagram in ASCII uploaded to ftp.ashford-poly.edu:/pub/telecom-archives/twin68_array.asc.

-- 
=== Nadia Suzuki ===
Dept of Electrical Engineering, Royal Institute of Technology, Stockholm
"The carrier frequency does not drift by accident."

From ndubois@netcom.com Tue Apr 18 10:38:25 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!netcom!ndubois
From: ndubois@netcom.com (Natalia Dubois)
Newsgroups: comp.sys.m68k
Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Apr18.103825.9380@netcom.com>
Date: Tue, 18 Apr 1995 10:38:25 GMT
References: <1995Apr17.144425.1405@kth.se>
Organization: NETCOM On-Line Communication Services
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In article <1995Apr17.144425.1405@kth.se>, nsuzuki@kth.se (Nadia Suzuki) writes:
> Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.
> Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'.

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.

-- 
Natalia Dubois | ndubois@netcom.com
PGP Key fingerprint: 184C EFA4 4E34 DE2B
"Keep the channels open."

From ynovak@tum.de Thu Apr 20 13:34:25 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!tum!ynovak
From: ynovak@tum.de (Yuki Novak)
Newsgroups: comp.sys.m68k
Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Apr20.133425.2771@tum.de>
Date: Thu, 20 Apr 1995 13:34:25 GMT
References: <1995Apr17.144425.1405@kth.se> <1995Apr18.103825.9380@netcom.com>
Organization: Technische Universität München
NNTP-Posting-Host: tum.de
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In article <1995Apr18.103825.9380@netcom.com>, ndubois@netcom.com (Natalia Dubois) writes:
> 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.

Socket U14 was probably for the decryption key lookup table. Without that EPROM, CPU #1 is running in an idle loop.

Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns.

-- 
Yuki Novak
Opinions expressed are solely my own and not those of Technische Universität München.
------------------------------------------------------------

From hgonzalez@earthlink.net Sat Apr 22 13:12:25 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!earthlink!hgonzalez
From: hgonzalez@earthlink.net (Hugo González)
Newsgroups: comp.sys.m68k
Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Apr22.131225.1887@earthlink.net>
Date: Sat, 22 Apr 1995 13:12:25 GMT
References: <1995Apr17.144425.1405@kth.se> <1995Apr18.103825.9380@netcom.com>
Organization: EarthLink Network
NNTP-Posting-Host: earthlink.net
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In article <1995Apr18.103825.9380@netcom.com>, ndubois@netcom.com (Natalia Dubois) writes:
> 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.

Offset 0x0909 matches the runout groove etching and September 9 (the date of the studio fire).

Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin!

-- 
Hugo González -- EarthLink Network
"They will send a copy in my place."