From asokolov@delphi.com Mon Nov 25 15:55:08 1996
Path: ashpoly!cascade!transat!sunet!nordrelay!delphi!asokolov
From: asokolov@delphi.com (Aiko Sokolov)
Newsgroups: comp.sys.m68k
Subject: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Nov25.155508.3325@delphi.com>
Date: Mon, 25 Nov 1996 15:55:08 GMT
Organization: Delphi Internet Services
NNTP-Posting-Host: delphi.com
X-Newsreader: TIN [version 1.2 PL2]
Lines: 11

Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.

At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.
The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank.

One 28-pin EPROM socket (labeled U14) is completely empty. What firmware was supposed to be in that socket?

-- 
Aiko Sokolov
Opinions expressed are solely my own and not those of Delphi Internet Services.
------------------------------------------------------------

From hweber@earthlink.net Wed Nov 27 05:53:08 1996
Path: ashpoly!cascade!mxgate!coyoacan!earthlink!hweber
From: hweber@earthlink.net (Hana Weber)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Nov27.055308.6945@earthlink.net>
Date: Wed, 27 Nov 1996 05:53:08 GMT
References: <1996Nov25.155508.3325@delphi.com>
Organization: EarthLink Network
NNTP-Posting-Host: earthlink.net
X-Newsreader: WinVN 0.99.5
Lines: 12

In article <1996Nov25.155508.3325@delphi.com>, asokolov@delphi.com (Aiko Sokolov) writes:
> Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.
> At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.

The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon.

Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs.

-- 
Hana Weber | hweber@earthlink.net
PGP Key fingerprint: 271B 2D20 2565 95FA
"Keep the channels open."

From mnilsson@panix.com Wed Nov 27 15:41:08 1996
Path: ashpoly!bigsur!pacrim!krgate!eunha!panix!mnilsson
From: mnilsson@panix.com (Min-jun Nilsson)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Nov27.154108.4816@panix.com>
Date: Wed, 27 Nov 1996 15:41:08 GMT
References: <1996Nov25.155508.3325@delphi.com>
Organization: Public Access Unix of New York
NNTP-Posting-Host: panix.com
X-Newsreader: Netscape 1.1N
Lines: 11

In article <1996Nov25.155508.3325@delphi.com>, asokolov@delphi.com (Aiko Sokolov) writes:
> Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.

Looks like a prototype telecommunications board for military secure voice, not an audio music product.

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

-- 
Min-jun Nilsson | mnilsson@panix.com
PGP Key fingerprint: 2E8F 361D 4508 64FC
"Keep the channels open."

From ktanaka@uu.net Thu Nov 28 19:15:08 1996
Path: ashpoly!cascade!mxgate!coyoacan!uu!ktanaka
From: ktanaka@uu.net (Kirsty Tanaka)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Nov28.191508.4905@uu.net>
Date: Thu, 28 Nov 1996 19:15:08 GMT
References: <1996Nov25.155508.3325@delphi.com> <1996Nov27.055308.6945@earthlink.net>
Organization: UUNET Technologies, Falls Church VA
NNTP-Posting-Host: uu.net
X-Newsreader: Netscape 1.1N
Lines: 10

In article <1996Nov27.055308.6945@earthlink.net>, hweber@earthlink.net (Hana Weber) writes:
> The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon.
> Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs.

The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon.

-- 
Kirsty Tanaka | ktanaka@uu.net
PGP Key fingerprint: 07D8 6BDF C292 59B6
"Keep the channels open."