From framirez@kth.se Thu Jan 20 04:23:59 1994 Path: ashpoly!cascade!transat!ukc!fennimore!kth!framirez From: framirez@kth.se (Fiona Ramírez) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan20.042359.3332@kth.se> Date: Thu, 20 Jan 1994 04:23:59 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 11 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. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Fiona Ramírez Opinions expressed are solely my own and not those of Royal Institute of Technology, Stockholm. ------------------------------------------------------------ From ssmirnov@mindspring.com Fri Jan 21 22:29:59 1994 Path: ashpoly!cascade!mxgate!coyoacan!mindspring!ssmirnov From: ssmirnov@mindspring.com (Sun-mi Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan21.222959.1007@mindspring.com> Date: Fri, 21 Jan 1994 22:29:59 GMT References: <1994Jan20.042359.3332@kth.se> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Jan20.042359.3332@kth.se>, framirez@kth.se (Fiona Ramírez) writes: > 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 SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Sun-mi Smirnov Opinions expressed are solely my own and not those of MindSpring Enterprises. ------------------------------------------------------------ From lsato@rwth-aachen.de Sat Jan 22 15:48:59 1994 Path: ashpoly!cascade!mxgate!coyoacan!rwth-aachen!lsato From: lsato@rwth-aachen.de (Lisa Sato) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan22.154859.9325@rwth-aachen.de> Date: Sat, 22 Jan 1994 15:48:59 GMT References: <1994Jan20.042359.3332@kth.se> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Jan20.042359.3332@kth.se>, framirez@kth.se (Fiona Ramírez) writes: > 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. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... -- Lisa Sato Zyxel U-1496E @ 19,200 bps "We don't sign stars. We build them." From rtanaka@rwth-aachen.de Mon Jan 24 07:54:59 1994 Path: ashpoly!cascade!bigsur!rwth-aachen!rtanaka From: rtanaka@rwth-aachen.de (Raj Tanaka) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan24.075459.3402@rwth-aachen.de> Date: Mon, 24 Jan 1994 07:54:59 GMT References: <1994Jan20.042359.3332@kth.se> <1994Jan21.222959.1007@mindspring.com> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1994Jan21.222959.1007@mindspring.com>, ssmirnov@mindspring.com (Sun-mi Smirnov) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Raj Tanaka SupraFAXModem 28.8 @ 28,800 bps "They will send a copy in my place." From kgonzalez@cam.ac.uk Wed Jan 26 11:30:59 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!cam!kgonzalez From: kgonzalez@cam.ac.uk (Katrin González) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jan26.113059.5218@cam.ac.uk> Date: Wed, 26 Jan 1994 11:30:59 GMT References: <1994Jan20.042359.3332@kth.se> <1994Jan21.222959.1007@mindspring.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jan21.222959.1007@mindspring.com>, ssmirnov@mindspring.com (Sun-mi Smirnov) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... -- Katrin González | kgonzalez@cam.ac.uk PGP Key fingerprint: B792 AC70 1CC3 B1E8 "Keep the channels open."