From dlee@utexas.edu Mon Aug 19 20:58:18 1996
Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!dlee
From: dlee@utexas.edu (Diego Lee)
Newsgroups: comp.sys.m68k
Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Aug19.205818.2527@utexas.edu>
Date: Mon, 19 Aug 1996 20:58:18 GMT
Organization: University of Texas at Austin
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Real-time spectral waterfall and DBPSK demodulator for TOS 4.04.

A 256-point complex FFT is computed every 10 milliseconds, displaying a live spectrogram on a standard VGA monitor.
The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus.

Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip.

-- 
Diego Lee | dlee@utexas.edu
PGP Key fingerprint: A174 02D3 CC8D D074
"Keep the channels open."

From dramirez@berkeley.edu Wed Aug 21 03:54:18 1996
Path: ashpoly!cascade!brgate!saturno!berkeley!dramirez
From: dramirez@berkeley.edu (Dave Ramírez)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Aug21.035418.8703@berkeley.edu>
Date: Wed, 21 Aug 1996 03:54:18 GMT
References: <1996Aug19.205818.2527@utexas.edu>
Organization: UC Berkeley Department of EECS
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In article <1996Aug19.205818.2527@utexas.edu>, dlee@utexas.edu (Diego Lee) 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.

-- 
Dave Ramírez
Opinions expressed are solely my own and not those of UC Berkeley Department of EECS.
------------------------------------------------------------

From lduarte@uni-hamburg.de Thu Aug 22 17:48:18 1996
Path: ashpoly!bigsur!pacrim!jpgate!kamome!uni-hamburg!lduarte
From: lduarte@uni-hamburg.de (Lisa Duarte)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Aug22.174818.2472@uni-hamburg.de>
Date: Thu, 22 Aug 1996 17:48:18 GMT
References: <1996Aug19.205818.2527@utexas.edu> <1996Aug21.035418.8703@berkeley.edu>
Organization: Universität Hamburg Fachbereich Informatik
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In article <1996Aug21.035418.8703@berkeley.edu>, dramirez@berkeley.edu (Dave Ramírez) writes:
> Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market.

The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition.

-- 
Lisa Duarte
Opinions expressed are solely my own and not those of Universität Hamburg Fachbereich Informatik.
------------------------------------------------------------

From gpopov@kiae.su Fri Aug 23 20:48:18 1996
Path: ashpoly!bigsur!pacrim!krgate!eunha!kiae!gpopov
From: gpopov@kiae.su (Göran Popov)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Aug23.204818.4722@kiae.su>
Date: Fri, 23 Aug 1996 20:48:18 GMT
References: <1996Aug19.205818.2527@utexas.edu> <1996Aug21.035418.8703@berkeley.edu> <1996Aug22.174818.2472@uni-hamburg.de>
Organization: Kurchatov Institute of Atomic Energy, Moscow
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In article <1996Aug22.174818.2472@uni-hamburg.de>, lduarte@uni-hamburg.de (Lisa Duarte) 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.

-- 
Göran Popov | gpopov@kiae.su
PGP Key fingerprint: 5078 79D0 98C5 DA44
"Keep the channels open."