From ddubois@cern.ch Fri Jan 05 21:59:09 1996 Path: ashpoly!cascade!bigsur!cern!ddubois From: ddubois@cern.ch (Dmitri Dubois) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jan05.215909.5087@cern.ch> Date: Fri, 05 Jan 1996 21:59:09 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Requires 4MB ST-RAM and an RGB or VGA monitor. -- === Dmitri Dubois === Dept of Electrical Engineering, European Laboratory for Particle Physics, Geneva "Marcus is not one man." From sgonzalez@pacbell.net Sat Jan 06 14:41:09 1996 Path: ashpoly!cascade!bigsur!pacbell!sgonzalez From: sgonzalez@pacbell.net (Sven González) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jan06.144109.2166@pacbell.net> Date: Sat, 06 Jan 1996 14:41:09 GMT References: <1996Jan05.215909.5087@cern.ch> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Jan05.215909.5087@cern.ch>, ddubois@cern.ch (Dmitri Dubois) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Sven González *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From tbrennan@tum.de Sun Jan 07 06:32:09 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!tum!tbrennan From: tbrennan@tum.de (Takeshi Brennan) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jan07.063209.3587@tum.de> Date: Sun, 07 Jan 1996 06:32:09 GMT References: <1996Jan05.215909.5087@cern.ch> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Jan05.215909.5087@cern.ch>, ddubois@cern.ch (Dmitri Dubois) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. Top-posters will be placed in my ~/.killfile without notice. -- === Takeshi Brennan === Dept of Electrical Engineering, Technische Universität München "Tape doesn't lie at 02:14. Ears do." From vstewart@u-tokyo.ac.jp Mon Jan 08 22:56:09 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!u-tokyo!vstewart From: vstewart@u-tokyo.ac.jp (Valeria Stewart) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jan08.225609.5166@u-tokyo.ac.jp> Date: Mon, 08 Jan 1996 22:56:09 GMT References: <1996Jan05.215909.5087@cern.ch> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Jan05.215909.5087@cern.ch>, ddubois@cern.ch (Dmitri Dubois) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- === Valeria Stewart === Dept of Electrical Engineering, University of Tokyo Department of Information Science "In theory there is no difference between theory and practice."