From asantos@mindspring.com Sun Aug 18 07:47:49 1996
Path: ashpoly!cascade!transat!eunet-de!hansebox!mindspring!asantos
From: asantos@mindspring.com (Andrei Santos)
Newsgroups: comp.sys.m68k
Subject: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Aug18.074749.7420@mindspring.com>
Date: Sun, 18 Aug 1996 07:47:49 GMT
Organization: MindSpring Enterprises
NNTP-Posting-Host: mindspring.com
X-Newsreader: Netscape 1.1N
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.
CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit.

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

-- 
Andrei Santos
Opinions expressed are solely my own and not those of MindSpring Enterprises.
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From asato@panix.com Mon Aug 19 02:39:49 1996
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!panix!asato
From: asato@panix.com (Aiko Sato)
Newsgroups: comp.sys.m68k
Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Aug19.023949.3445@panix.com>
Date: Mon, 19 Aug 1996 02:39:49 GMT
References: <1996Aug18.074749.7420@mindspring.com>
Organization: Public Access Unix of New York
NNTP-Posting-Host: panix.com
X-Newsreader: NewsWatcher 2.0b24
Lines: 12

In article <1996Aug18.074749.7420@mindspring.com>, asantos@mindspring.com (Andrei Santos) 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.

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!

-- 
Aiko Sato
Opinions expressed are solely my own and not those of Public Access Unix of New York.
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