From bmacdonald@cern.ch Thu Aug 04 02:04:27 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!bmacdonald From: bmacdonald@cern.ch (Bill MacDonald) Newsgroups: comp.sys.m68k Subject: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Aug04.020427.1395@cern.ch> Date: Thu, 04 Aug 1994 02:04:27 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch 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'. The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- Bill MacDonald US Robotics Courier V.34 @ 9600 Telebit bps "There are 14 nodes and only 10 countries. Count again." From amuller@mindspring.com Thu Aug 04 10:44:27 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!mindspring!amuller From: amuller@mindspring.com (Aiko Müller) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Aug04.104427.1918@mindspring.com> Date: Thu, 04 Aug 1994 10:44:27 GMT References: <1994Aug04.020427.1395@cern.ch> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Aug04.020427.1395@cern.ch>, bmacdonald@cern.ch (Bill MacDonald) writes: > 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'. Looks like a prototype telecommunications board for military secure voice, not an audio music product. -- Aiko Müller | amuller@mindspring.com PGP Key fingerprint: BD80 A932 09AE 4EA6 "Keep the channels open." From tsuzuki@stanford.edu Sat Aug 06 01:16:27 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!stanford!tsuzuki From: tsuzuki@stanford.edu (Tomas Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Aug06.011627.1814@stanford.edu> Date: Sat, 06 Aug 1994 01:16:27 GMT References: <1994Aug04.020427.1395@cern.ch> <1994Aug04.104427.1918@mindspring.com> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Aug04.104427.1918@mindspring.com>, amuller@mindspring.com (Aiko Müller) writes: > Looks like a prototype telecommunications board for military secure voice, not an audio music product. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Tomas Suzuki "Marcus is not one man." Sun 3/60 (SunOS 4.1.1) / FreeBSD 2.1