From fivanov@delphi.com Sat Dec 09 17:36:03 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!delphi!fivanov From: fivanov@delphi.com (Freya Ivanov) Newsgroups: comp.sys.m68k Subject: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec09.173603.2454@delphi.com> Date: Sat, 09 Dec 1995 17:36:03 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com 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'. One 28-pin EPROM socket (labeled U14) is completely empty. What firmware was supposed to be in that socket? -- Freya Ivanov *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From bnakamura@ox.ac.uk Mon Dec 11 20:11:03 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!ox!bnakamura From: bnakamura@ox.ac.uk (Bastien Nakamura) Newsgroups: comp.sys.m68k Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec11.201103.4312@ox.ac.uk> Date: Mon, 11 Dec 1995 20:11:03 GMT References: <1995Dec09.173603.2454@delphi.com> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1995Dec09.173603.2454@delphi.com>, fivanov@delphi.com (Freya Ivanov) writes: > 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. Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Bastien Nakamura "The hatch is open. Is anyone listening?" Decstation 5000/200 / TOS 4.04 From osantos@berkeley.edu Tue Dec 12 03:18:03 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!berkeley!osantos From: osantos@berkeley.edu (Olga Santos) Newsgroups: comp.sys.m68k Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec12.031803.2458@berkeley.edu> Date: Tue, 12 Dec 1995 03:18:03 GMT References: <1995Dec09.173603.2454@delphi.com> <1995Dec11.201103.4312@ox.ac.uk> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Dec11.201103.4312@ox.ac.uk>, bnakamura@ox.ac.uk (Bastien Nakamura) writes: > Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- === Olga Santos === Dept of Electrical Engineering, UC Berkeley Department of EECS "Hold for relay." From randersson@mindspring.com Tue Dec 12 11:39:03 1995 Path: ashpoly!cascade!brgate!saturno!mindspring!randersson From: randersson@mindspring.com (Raj Andersson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Dec12.113903.9587@mindspring.com> Date: Tue, 12 Dec 1995 11:39:03 GMT References: <1995Dec09.173603.2454@delphi.com> <1995Dec11.201103.4312@ox.ac.uk> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Dec11.201103.4312@ox.ac.uk>, bnakamura@ox.ac.uk (Bastien Nakamura) writes: > Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? > My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? -- Raj Andersson | randersson@mindspring.com PGP Key fingerprint: 0AA6 1C3A B4C2 C6CE "Keep the channels open."