From jlarsson@illinois.edu Tue Mar 26 03:30:48 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!illinois!jlarsson From: jlarsson@illinois.edu (Ji-woo Larsson) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar26.033048.7083@illinois.edu> Date: Tue, 26 Mar 1996 03:30:48 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Ji-woo Larsson | jlarsson@illinois.edu PGP Key fingerprint: 036C DA36 B512 F18C "Keep the channels open." From mivanov@earthlink.net Tue Mar 26 23:55:48 1996 Path: ashpoly!cascade!bigsur!earthlink!mivanov From: mivanov@earthlink.net (Min-jun Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar26.235548.7715@earthlink.net> Date: Tue, 26 Mar 1996 23:55:48 GMT References: <1996Mar26.033048.7083@illinois.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Mar26.033048.7083@illinois.edu>, jlarsson@illinois.edu (Ji-woo Larsson) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Min-jun Ivanov "A soul is not exclusive to biology." Mac IIci / 68882 FPU / AmigaOS 3.1 From mfournier@pacbell.net Thu Mar 28 23:30:48 1996 Path: ashpoly!cascade!transat!ukc!fennimore!pacbell!mfournier From: mfournier@pacbell.net (Marisol Fournier) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar28.233048.6145@pacbell.net> Date: Thu, 28 Mar 1996 23:30:48 GMT References: <1996Mar26.033048.7083@illinois.edu> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Mar26.033048.7083@illinois.edu>, jlarsson@illinois.edu (Ji-woo Larsson) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- === Marisol Fournier === Dept of Electrical Engineering, Pacific Bell Internet Services "They will send a copy in my place." From fperez@netcom.com Sat Mar 30 00:41:48 1996 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!fperez From: fperez@netcom.com (Fiona Pérez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar30.004148.5331@netcom.com> Date: Sat, 30 Mar 1996 00:41:48 GMT References: <1996Mar26.033048.7083@illinois.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Mar26.033048.7083@illinois.edu>, jlarsson@illinois.edu (Ji-woo Larsson) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Fiona Pérez | fperez@netcom.com PGP Key fingerprint: 758C D08A B26C 5448 "Keep the channels open." From jgonzalez@cern.ch Sat Mar 30 18:29:48 1996 Path: ashpoly!cascade!transat!ukc!fennimore!cern!jgonzalez From: jgonzalez@cern.ch (Jens González) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar30.182948.7867@cern.ch> Date: Sat, 30 Mar 1996 18:29:48 GMT References: <1996Mar26.033048.7083@illinois.edu> <1996Mar28.233048.6145@pacbell.net> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Mar28.233048.6145@pacbell.net>, mfournier@pacbell.net (Marisol Fournier) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Jens González -- European Laboratory for Particle Physics, Geneva "We don't sign stars. We build them."