From alaurent@kiae.su Thu Apr 07 19:14:52 1994 Path: ashpoly!cascade!mxgate!coyoacan!kiae!alaurent From: alaurent@kiae.su (Andrei Laurent) Newsgroups: comp.sys.m68k Subject: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr07.191452.4210@kiae.su> Date: Thu, 07 Apr 1994 19:14:52 GMT Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N 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'. CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- === Andrei Laurent === Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow "We don't sign stars. We build them." From mandersson@earthlink.net Sat Apr 09 20:23:52 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!mandersson From: mandersson@earthlink.net (Mike Andersson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr09.202352.5052@earthlink.net> Date: Sat, 09 Apr 1994 20:23:52 GMT References: <1994Apr07.191452.4210@kiae.su> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1994Apr07.191452.4210@kiae.su>, alaurent@kiae.su (Andrei Laurent) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Mike Andersson -- EarthLink Network "Hold for relay." From dgarcia@titech.ac.jp Sat Apr 09 21:20:52 1994 Path: ashpoly!cascade!brgate!saturno!titech!dgarcia From: dgarcia@titech.ac.jp (Dave García) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr09.212052.1878@titech.ac.jp> Date: Sat, 09 Apr 1994 21:20:52 GMT References: <1994Apr07.191452.4210@kiae.su> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Apr07.191452.4210@kiae.su>, alaurent@kiae.su (Andrei Laurent) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- === Dave García === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "There are 14 nodes and only 10 countries. Count again." From jbrennan@panix.com Sun Apr 10 04:01:52 1994 Path: ashpoly!cascade!mxgate!coyoacan!panix!jbrennan From: jbrennan@panix.com (Jen Brennan) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr10.040152.5871@panix.com> Date: Sun, 10 Apr 1994 04:01:52 GMT References: <1994Apr07.191452.4210@kiae.su> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Apr07.191452.4210@kiae.su>, alaurent@kiae.su (Andrei Laurent) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- Jen Brennan US Robotics Courier V.34 @ 9600 Telebit bps "5 sigma is a discovery. 7 is a question." From prodriguez@cmu.edu Tue Apr 12 00:58:52 1994 Path: ashpoly!cascade!bigsur!cmu!prodriguez From: prodriguez@cmu.edu (Pavel Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr12.005852.4930@cmu.edu> Date: Tue, 12 Apr 1994 00:58:52 GMT References: <1994Apr07.191452.4210@kiae.su> <1994Apr09.202352.5052@earthlink.net> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Apr09.202352.5052@earthlink.net>, mandersson@earthlink.net (Mike Andersson) writes: > Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Pavel Rodríguez Tape trading list upon request. SASE required for international mail.