From tmoreau@titech.ac.jp Thu Jan 11 09:37:23 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!titech!tmoreau From: tmoreau@titech.ac.jp (Takeshi Moreau) Newsgroups: comp.sys.m68k Subject: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan11.093723.8981@titech.ac.jp> Date: Thu, 11 Jan 1996 09:37:23 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. 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. -- === Takeshi Moreau === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "When every node is whole, the channel opens." From abrennan@mindspring.com Fri Jan 12 13:12:23 1996 Path: ashpoly!cascade!transat!ukc!fennimore!mindspring!abrennan From: abrennan@mindspring.com (Astrid Brennan) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan12.131223.4491@mindspring.com> Date: Fri, 12 Jan 1996 13:12:23 GMT References: <1996Jan11.093723.8981@titech.ac.jp> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Jan11.093723.8981@titech.ac.jp>, tmoreau@titech.ac.jp (Takeshi Moreau) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. Tom from Ashford Poly owns the physical board! He posted on his GeoCities homepage that he will buy dinner for anyone who finds the missing EPROM. If you are posting from AOL, please read RFC 1036 before posting again. -- Astrid Brennan *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From jgirard@cmu.edu Sat Jan 13 20:07:23 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!cmu!jgirard From: jgirard@cmu.edu (Jens Girard) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan13.200723.8414@cmu.edu> Date: Sat, 13 Jan 1996 20:07:23 GMT References: <1996Jan11.093723.8981@titech.ac.jp> <1996Jan12.131223.4491@mindspring.com> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Jan12.131223.4491@mindspring.com>, abrennan@mindspring.com (Astrid Brennan) writes: > Tom from Ashford Poly owns the physical board! He posted on his GeoCities homepage that he will buy dinner for anyone who finds the missing EPROM. > If you are posting from AOL, please read RFC 1036 before posting again. Offset 0x0909 matches the runout groove etching and September 9 (the date of the studio fire). -- Jens Girard Practical Peripherals 14.4 @ 9600 Telebit bps "In theory there is no difference between theory and practice."