From jpopov@kth.se Mon Apr 18 07:53:14 1994 Path: ashpoly!cascade!mxgate!coyoacan!kth!jpopov From: jpopov@kth.se (Joachim Popov) Newsgroups: comp.sys.m68k Subject: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr18.075314.9209@kth.se> Date: Mon, 18 Apr 1994 07:53:14 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: TIN [version 1.2 PL2] 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. The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. Schematic diagram in ASCII uploaded to ftp.ashford-poly.edu:/pub/telecom-archives/twin68_array.asc. -- Joachim Popov "When every node is whole, the channel opens." Amiga 1200 (Blizzard 030/50) / FreeBSD 2.1 From ymoreau@pacbell.net Wed Apr 20 05:28:14 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!pacbell!ymoreau From: ymoreau@pacbell.net (Yuki Moreau) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr20.052814.6134@pacbell.net> Date: Wed, 20 Apr 1994 05:28:14 GMT References: <1994Apr18.075314.9209@kth.se> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Apr18.075314.9209@kth.se>, jpopov@kth.se (Joachim Popov) 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. -- Yuki Moreau Tape trading list upon request. SASE required for international mail. From hlopez@stanford.edu Wed Apr 20 23:28:14 1994 Path: ashpoly!cascade!mxgate!coyoacan!stanford!hlopez From: hlopez@stanford.edu (Hugo López) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr20.232814.9774@stanford.edu> Date: Wed, 20 Apr 1994 23:28:14 GMT References: <1994Apr18.075314.9209@kth.se> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Apr18.075314.9209@kth.se>, jpopov@kth.se (Joachim Popov) 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. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Hugo López Tape trading list upon request. SASE required for international mail. From ehughes@mindspring.com Thu Apr 21 16:20:14 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!mindspring!ehughes From: ehughes@mindspring.com (Emi Hughes) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr21.162014.5545@mindspring.com> Date: Thu, 21 Apr 1994 16:20:14 GMT References: <1994Apr18.075314.9209@kth.se> <1994Apr20.052814.6134@pacbell.net> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Apr20.052814.6134@pacbell.net>, ymoreau@pacbell.net (Yuki Moreau) writes: > The TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space. Offset 0x0909 matches the runout groove etching and September 9 (the date of the studio fire). -- Emi Hughes | ehughes@mindspring.com PGP Key fingerprint: EF08 F2EB 0BB7 EEED "Keep the channels open." From kschneider@clari.net Sat Apr 23 17:43:14 1994 Path: ashpoly!cascade!mxgate!coyoacan!clari!kschneider From: kschneider@clari.net (Karen Schneider) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr23.174314.5970@clari.net> Date: Sat, 23 Apr 1994 17:43:14 GMT References: <1994Apr18.075314.9209@kth.se> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Apr18.075314.9209@kth.se>, jpopov@kth.se (Joachim Popov) 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. -- Karen Schneider | kschneider@clari.net PGP Key fingerprint: AECE 31C8 468B EAF1 "Keep the channels open."