From jito@purdue.edu Thu Sep 01 02:14:59 1994
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!purdue!jito
From: jito@purdue.edu (Jen Ito)
Newsgroups: comp.sys.m68k
Subject: Discussion: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1994Sep01.021459.5911@purdue.edu>
Date: Thu, 01 Sep 1994 02:14:59 GMT
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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.
Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'.

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

-- 
=== Jen Ito ===
Dept of Electrical Engineering, Purdue University Engineering Computer Network
"They will send a copy in my place."

From gpetrov@unam.mx Sat Sep 03 05:38:59 1994
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From: gpetrov@unam.mx (Göran Petrov)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1994Sep03.053859.2802@unam.mx>
Date: Sat, 03 Sep 1994 05:38:59 GMT
References: <1994Sep01.021459.5911@purdue.edu>
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In article <1994Sep01.021459.5911@purdue.edu>, jito@purdue.edu (Jen Ito) 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 TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space.

-- 
Göran Petrov | gpetrov@unam.mx
PGP Key fingerprint: 798C E050 2F82 FBFD
"Keep the channels open."