From msato@purdue.edu Thu Mar 21 22:18:49 1996 Path: ashpoly!cascade!mxgate!coyoacan!purdue!msato From: msato@purdue.edu (Mateo Sato) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar21.221849.7606@purdue.edu> Date: Thu, 21 Mar 1996 22:18:49 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] 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. The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Mateo Sato Opinions expressed are solely my own and not those of Purdue University Engineering Computer Network. ------------------------------------------------------------ From roliveira@kiae.su Fri Mar 22 13:23:49 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!kiae!roliveira From: roliveira@kiae.su (Rodrigo Oliveira) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar22.132349.7964@kiae.su> Date: Fri, 22 Mar 1996 13:23:49 GMT References: <1996Mar21.221849.7606@purdue.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Mar21.221849.7606@purdue.edu>, msato@purdue.edu (Mateo Sato) 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. -- Rodrigo Oliveira -- Kurchatov Institute of Atomic Energy, Moscow "Measuring a record you own is listening, not piracy." From shernandez@rwth-aachen.de Sat Mar 23 01:37:49 1996 Path: ashpoly!cascade!mxgate!coyoacan!rwth-aachen!shernandez From: shernandez@rwth-aachen.de (Sun-mi Hernández) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar23.013749.9970@rwth-aachen.de> Date: Sat, 23 Mar 1996 01:37:49 GMT References: <1996Mar21.221849.7606@purdue.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Mar21.221849.7606@purdue.edu>, msato@purdue.edu (Mateo Sato) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- === Sun-mi Hernández === Dept of Electrical Engineering, RWTH Aachen Informatik "There are 14 nodes and only 10 countries. Count again." From lmartinez@unam.mx Sun Mar 24 18:52:49 1996 Path: ashpoly!cascade!bigsur!unam!lmartinez From: lmartinez@unam.mx (Lucia Martínez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar24.185249.3257@unam.mx> Date: Sun, 24 Mar 1996 18:52:49 GMT References: <1996Mar21.221849.7606@purdue.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Mar21.221849.7606@purdue.edu>, msato@purdue.edu (Mateo Sato) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Lucia Martínez Opinions expressed are solely my own and not those of Universidad Nacional Autónoma de México (DGSCA). ------------------------------------------------------------ From mhughes@cam.ac.uk Mon Mar 25 12:55:49 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!mhughes From: mhughes@cam.ac.uk (Mathieu Hughes) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Mar25.125549.7770@cam.ac.uk> Date: Mon, 25 Mar 1996 12:55:49 GMT References: <1996Mar21.221849.7606@purdue.edu> <1996Mar24.185249.3257@unam.mx> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Mar24.185249.3257@unam.mx>, lmartinez@unam.mx (Lucia Martínez) 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'. -- === Mathieu Hughes === Dept of Electrical Engineering, University of Cambridge Computer Laboratory "When every node is whole, the channel opens."