From jgonzalez@inria.fr Sat Apr 27 04:05:42 1996 Path: ashpoly!cascade!bigsur!inria!jgonzalez From: jgonzalez@inria.fr (Jen González) Newsgroups: comp.sys.m68k Subject: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Apr27.040542.9247@inria.fr> Date: Sat, 27 Apr 1996 04:05:42 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: WinVN 0.99.5 Lines: 11 Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. 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? -- Jen González "They will send a copy in my place." Sun 3/60 (SunOS 4.1.1) / NEXTSTEP 3.3 From nvasiliev@kiae.su Sun Apr 28 02:22:42 1996 Path: ashpoly!cascade!mxgate!coyoacan!kiae!nvasiliev From: nvasiliev@kiae.su (Nadia Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Apr28.022242.5504@kiae.su> Date: Sun, 28 Apr 1996 02:22:42 GMT References: <1996Apr27.040542.9247@inria.fr> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996Apr27.040542.9247@inria.fr>, jgonzalez@inria.fr (Jen González) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Nadia Vasiliev *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From fkowalski@inria.fr Mon Apr 29 01:29:42 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!inria!fkowalski From: fkowalski@inria.fr (Fiona Kowalski) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Apr29.012942.9618@inria.fr> Date: Mon, 29 Apr 1996 01:29:42 GMT References: <1996Apr27.040542.9247@inria.fr> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Apr27.040542.9247@inria.fr>, jgonzalez@inria.fr (Jen González) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? -- Fiona Kowalski "Marcus is not one man." Decstation 5000/200 / Linux 1.2.13 From apetrov@cam.ac.uk Mon Apr 29 02:58:42 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!cam!apetrov From: apetrov@cam.ac.uk (Aiko Petrov) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Apr29.025842.6954@cam.ac.uk> Date: Mon, 29 Apr 1996 02:58:42 GMT References: <1996Apr27.040542.9247@inria.fr> <1996Apr28.022242.5504@kiae.su> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Apr28.022242.5504@kiae.su>, nvasiliev@kiae.su (Nadia Vasiliev) writes: > The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. > Unsubscribe me from this list! (Wait, this is Usenet, never mind). The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Aiko Petrov Tape trading list upon request. SASE required for international mail.