From ssouza@unam.mx Sat May 27 18:19:14 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!unam!ssouza From: ssouza@unam.mx (Sergei Souza) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995May27.181914.3876@unam.mx> Date: Sat, 27 May 1995 18:19:14 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. 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. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Sergei Souza "Extraordinary claims require extraordinary spectra." PC-9821Ap2 (NEC) / SunOS 4.1.4 From osokolov@titech.ac.jp Sun May 28 06:16:14 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!titech!osokolov From: osokolov@titech.ac.jp (Olga Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995May28.061614.7272@titech.ac.jp> Date: Sun, 28 May 1995 06:16:14 GMT References: <1995May27.181914.3876@unam.mx> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995May27.181914.3876@unam.mx>, ssouza@unam.mx (Sergei Souza) 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. PGP Public key available via finger or upon request. -- Olga Sokolov Tape trading list upon request. SASE required for international mail. From mkim@demon.co.uk Mon May 29 18:54:14 1995 Path: ashpoly!cascade!mxgate!coyoacan!demon!mkim From: mkim@demon.co.uk (Morag Kim) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995May29.185414.1515@demon.co.uk> Date: Mon, 29 May 1995 18:54:14 GMT References: <1995May27.181914.3876@unam.mx> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995May27.181914.3876@unam.mx>, ssouza@unam.mx (Sergei Souza) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > 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'. -- Morag Kim US Robotics Courier V.34 @ 19,200 bps "Tape doesn't lie at 02:14. Ears do." From efischer@rwth-aachen.de Tue May 30 22:34:14 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!rwth-aachen!efischer From: efischer@rwth-aachen.de (Emi Fischer) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995May30.223414.8654@rwth-aachen.de> Date: Tue, 30 May 1995 22:34:14 GMT References: <1995May27.181914.3876@unam.mx> <1995May28.061614.7272@titech.ac.jp> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995May28.061614.7272@titech.ac.jp>, osokolov@titech.ac.jp (Olga Sokolov) 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. -- Emi Fischer *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0