From akarlsson@pacbell.net Thu Jun 08 20:19:27 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!pacbell!akarlsson From: akarlsson@pacbell.net (Andrei Karlsson) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun08.201927.4896@pacbell.net> Date: Thu, 08 Jun 1995 20:19:27 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 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. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Andrei Karlsson *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From msokolov@cmu.edu Fri Jun 09 08:38:27 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cmu!msokolov From: msokolov@cmu.edu (Mei Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun09.083827.8997@cmu.edu> Date: Fri, 09 Jun 1995 08:38:27 GMT References: <1995Jun08.201927.4896@pacbell.net> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Jun08.201927.4896@pacbell.net>, akarlsson@pacbell.net (Andrei Karlsson) 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'. -- === Mei Sokolov === Dept of Electrical Engineering, Carnegie Mellon University School of CS "The carrier frequency does not drift by accident." From sperez@u-tokyo.ac.jp Sun Jun 11 04:40:27 1995 Path: ashpoly!cascade!transat!ukc!fennimore!u-tokyo!sperez From: sperez@u-tokyo.ac.jp (Steve Pérez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun11.044027.9795@u-tokyo.ac.jp> Date: Sun, 11 Jun 1995 04:40:27 GMT References: <1995Jun08.201927.4896@pacbell.net> <1995Jun09.083827.8997@cmu.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Jun09.083827.8997@cmu.edu>, msokolov@cmu.edu (Mei Sokolov) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. 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. -- Steve Pérez Tape trading list upon request. SASE required for international mail. From tschneider@mit.edu Sun Jun 11 19:10:27 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!mit!tschneider From: tschneider@mit.edu (Tyler Schneider) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun11.191027.4187@mit.edu> Date: Sun, 11 Jun 1995 19:10:27 GMT References: <1995Jun08.201927.4896@pacbell.net> <1995Jun09.083827.8997@cmu.edu> <1995Jun11.044027.9795@u-tokyo.ac.jp> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jun11.044027.9795@u-tokyo.ac.jp>, sperez@u-tokyo.ac.jp (Steve Pérez) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Tyler Schneider "Hardware is temporary. The signal survives." Macintosh IIfx / System 7.5.1 From nsanchez@berkeley.edu Tue Jun 13 18:14:27 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!nsanchez From: nsanchez@berkeley.edu (Nadine Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Jun13.181427.4117@berkeley.edu> Date: Tue, 13 Jun 1995 18:14:27 GMT References: <1995Jun08.201927.4896@pacbell.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Jun08.201927.4896@pacbell.net>, akarlsson@pacbell.net (Andrei Karlsson) 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. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Nadine Sánchez | nsanchez@berkeley.edu PGP Key fingerprint: 644D B078 A293 6FB9 "Keep the channels open."