From akuznetsov@cern.ch Thu May 26 15:21:43 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cern!akuznetsov From: akuznetsov@cern.ch (Amy Kuznetsov) Newsgroups: comp.sys.m68k Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994May26.152143.9728@cern.ch> Date: Thu, 26 May 1994 15:21:43 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Amy Kuznetsov *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From rsilva@clari.net Fri May 27 22:13:43 1994 Path: ashpoly!cascade!bigsur!clari!rsilva From: rsilva@clari.net (Rodrigo Silva) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994May27.221343.4427@clari.net> Date: Fri, 27 May 1994 22:13:43 GMT References: <1994May26.152143.9728@cern.ch> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994May26.152143.9728@cern.ch>, akuznetsov@cern.ch (Amy Kuznetsov) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Rodrigo Silva Zyxel U-1496E @ 19,200 bps "Extraordinary claims require extraordinary spectra." From rperez@clari.net Sat May 28 17:15:43 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!clari!rperez From: rperez@clari.net (Rodrigo Pérez) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994May28.171543.3506@clari.net> Date: Sat, 28 May 1994 17:15:43 GMT References: <1994May26.152143.9728@cern.ch> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994May26.152143.9728@cern.ch>, akuznetsov@cern.ch (Amy Kuznetsov) writes: > Taking advantage of the Falcon's built-in 32 MHz DSP56001 and 16-bit audio codec. > The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. If you are posting from AOL, please read RFC 1036 before posting again. -- Rodrigo Pérez Tape trading list upon request. SASE required for international mail. From jito@utexas.edu Mon May 30 18:03:43 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!jito From: jito@utexas.edu (Jens Ito) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994May30.180343.4413@utexas.edu> Date: Mon, 30 May 1994 18:03:43 GMT References: <1994May26.152143.9728@cern.ch> <1994May27.221343.4427@clari.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994May27.221343.4427@clari.net>, rsilva@clari.net (Rodrigo Silva) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- === Jens Ito === Dept of Electrical Engineering, University of Texas at Austin "The hatch is open. Is anyone listening?" From shughes@demon.co.uk Wed Jun 01 08:11:43 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!demon!shughes From: shughes@demon.co.uk (Sergei Hughes) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jun01.081143.3121@demon.co.uk> Date: Wed, 01 Jun 1994 08:11:43 GMT References: <1994May26.152143.9728@cern.ch> <1994May27.221343.4427@clari.net> <1994May30.180343.4413@utexas.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994May30.180343.4413@utexas.edu>, jito@utexas.edu (Jens Ito) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Sergei Hughes Opinions expressed are solely my own and not those of Demon Internet Services UK. ------------------------------------------------------------