From aokonkwo@earthlink.net Mon Jun 03 01:46:54 1996 Path: ashpoly!cascade!bigsur!earthlink!aokonkwo From: aokonkwo@earthlink.net (Anja Okonkwo) Newsgroups: comp.sys.m68k Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jun03.014654.6264@earthlink.net> Date: Mon, 03 Jun 1996 01:46:54 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 10 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. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Anja Okonkwo -- EarthLink Network "Marcus is not one man." From jdubois@cern.ch Tue Jun 04 08:43:54 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!jdubois From: jdubois@cern.ch (Jens Dubois) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jun04.084354.1842@cern.ch> Date: Tue, 04 Jun 1996 08:43:54 GMT References: <1996Jun03.014654.6264@earthlink.net> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 12 In article <1996Jun03.014654.6264@earthlink.net>, aokonkwo@earthlink.net (Anja Okonkwo) 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'. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Jens Dubois Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva. ------------------------------------------------------------ From asanchez@berkeley.edu Wed Jun 05 02:05:54 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!asanchez From: asanchez@berkeley.edu (Andrei Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jun05.020554.3234@berkeley.edu> Date: Wed, 05 Jun 1996 02:05:54 GMT References: <1996Jun03.014654.6264@earthlink.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Jun03.014654.6264@earthlink.net>, aokonkwo@earthlink.net (Anja Okonkwo) 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. -- Andrei Sánchez Tape trading list upon request. SASE required for international mail. From bpark@uni-hamburg.de Wed Jun 05 18:48:54 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!uni-hamburg!bpark From: bpark@uni-hamburg.de (Bill Park) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jun05.184854.6853@uni-hamburg.de> Date: Wed, 05 Jun 1996 18:48:54 GMT References: <1996Jun03.014654.6264@earthlink.net> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Jun03.014654.6264@earthlink.net>, aokonkwo@earthlink.net (Anja Okonkwo) 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. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Bill Park | bpark@uni-hamburg.de PGP Key fingerprint: B211 80F9 3BC0 6927 "Keep the channels open." From jsantos@panix.com Thu Jun 06 19:34:54 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!panix!jsantos From: jsantos@panix.com (Julien Santos) Newsgroups: comp.sys.m68k Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Jun06.193454.3322@panix.com> Date: Thu, 06 Jun 1996 19:34:54 GMT References: <1996Jun03.014654.6264@earthlink.net> <1996Jun05.184854.6853@uni-hamburg.de> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jun05.184854.6853@uni-hamburg.de>, bpark@uni-hamburg.de (Bill Park) 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'. -- Julien Santos Practical Peripherals 14.4 @ 19,200 bps "We don't sign stars. We build them."