From rito@tum.de Tue Dec 27 22:57:05 1994
Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!rito
From: rito@tum.de (Rodrigo Ito)
Newsgroups: comp.sys.m68k
Subject: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1994Dec27.225705.8849@tum.de>
Date: Tue, 27 Dec 1994 22:57:05 GMT
Organization: Technische Universität München
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Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look.

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'.

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

-- 
Rodrigo Ito
Opinions expressed are solely my own and not those of Technische Universität München.
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From tlindqvist@kiae.su Wed Dec 28 13:46:05 1994
Path: ashpoly!cascade!transat!eunet-fr!teletel!kiae!tlindqvist
From: tlindqvist@kiae.su (Tyler Lindqvist)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1994Dec28.134605.9120@kiae.su>
Date: Wed, 28 Dec 1994 13:46:05 GMT
References: <1994Dec27.225705.8849@tum.de>
Organization: Kurchatov Institute of Atomic Energy, Moscow
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In article <1994Dec27.225705.8849@tum.de>, rito@tum.de (Rodrigo Ito) writes:
> Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look.

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

-- 
Tyler Lindqvist -- Kurchatov Institute of Atomic Energy, Moscow
"Extraordinary claims require extraordinary spectra."