From gbrennan@hanse.de Sun Jul 02 21:53:07 1995 Path: ashpoly!cascade!bigsur!hanse!gbrennan From: gbrennan@hanse.de (Göran Brennan) Newsgroups: comp.sys.m68k Subject: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul02.215307.3951@hanse.de> Date: Sun, 02 Jul 1995 21:53:07 GMT Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 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. 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. -- Göran Brennan *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From msanchez@cern.ch Tue Jul 04 10:02:07 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!cern!msanchez From: msanchez@cern.ch (Mikhail Sánchez) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul04.100207.6241@cern.ch> Date: Tue, 04 Jul 1995 10:02:07 GMT References: <1995Jul02.215307.3951@hanse.de> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul02.215307.3951@hanse.de>, gbrennan@hanse.de (Göran Brennan) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Mikhail Sánchez | msanchez@cern.ch PGP Key fingerprint: 8F7B 8EDE 4798 C853 "Keep the channels open." From mmoreno@clari.net Wed Jul 05 00:49:07 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!clari!mmoreno From: mmoreno@clari.net (Marisol Moreno) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul05.004907.7535@clari.net> Date: Wed, 05 Jul 1995 00:49:07 GMT References: <1995Jul02.215307.3951@hanse.de> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul02.215307.3951@hanse.de>, gbrennan@hanse.de (Göran Brennan) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. Looks like a prototype telecommunications board for military secure voice, not an audio music product. -- Marisol Moreno | mmoreno@clari.net PGP Key fingerprint: FCE4 4606 DD41 473D "Keep the channels open."