From dperez@illinois.edu Wed Jul 20 01:56:49 1994 Path: ashpoly!cascade!transat!ukc!fennimore!illinois!dperez From: dperez@illinois.edu (Dong-hyun Pérez) Newsgroups: comp.sys.m68k Subject: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul20.015649.1105@illinois.edu> Date: Wed, 20 Jul 1994 01:56:49 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] 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. Requires 4MB ST-RAM and an RGB or VGA monitor. -- Dong-hyun Pérez | dperez@illinois.edu PGP Key fingerprint: 0783 5296 134C 4937 "Keep the channels open." From ahernandez@rwth-aachen.de Wed Jul 20 20:09:49 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!rwth-aachen!ahernandez From: ahernandez@rwth-aachen.de (Anja Hernández) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul20.200949.1123@rwth-aachen.de> Date: Wed, 20 Jul 1994 20:09:49 GMT References: <1994Jul20.015649.1105@illinois.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Jul20.015649.1105@illinois.edu>, dperez@illinois.edu (Dong-hyun Pérez) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Anja Hernández *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From btakahashi@mit.edu Thu Jul 21 18:54:49 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!mit!btakahashi From: btakahashi@mit.edu (Bruno Takahashi) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul21.185449.7852@mit.edu> Date: Thu, 21 Jul 1994 18:54:49 GMT References: <1994Jul20.015649.1105@illinois.edu> <1994Jul20.200949.1123@rwth-aachen.de> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Jul20.200949.1123@rwth-aachen.de>, ahernandez@rwth-aachen.de (Anja Hernández) 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. -- Bruno Takahashi | btakahashi@mit.edu PGP Key fingerprint: 7C4F E54A 41D5 1A63 "Keep the channels open." From mlindqvist@uu.net Sat Jul 23 07:33:49 1994 Path: ashpoly!cascade!brgate!saturno!uu!mlindqvist From: mlindqvist@uu.net (Mike Lindqvist) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul23.073349.5622@uu.net> Date: Sat, 23 Jul 1994 07:33:49 GMT References: <1994Jul20.015649.1105@illinois.edu> <1994Jul20.200949.1123@rwth-aachen.de> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Jul20.200949.1123@rwth-aachen.de>, ahernandez@rwth-aachen.de (Anja Hernández) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. > Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- === Mike Lindqvist === Dept of Electrical Engineering, UUNET Technologies, Falls Church VA "We don't sign stars. We build them." From nwatanabe@unam.mx Sun Jul 24 22:42:49 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!unam!nwatanabe From: nwatanabe@unam.mx (Nadine Watanabe) Newsgroups: comp.sys.m68k Subject: Re: Question: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Jul24.224249.4318@unam.mx> Date: Sun, 24 Jul 1994 22:42:49 GMT References: <1994Jul20.015649.1105@illinois.edu> <1994Jul20.200949.1123@rwth-aachen.de> <1994Jul23.073349.5622@uu.net> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1994Jul23.073349.5622@uu.net>, mlindqvist@uu.net (Mike Lindqvist) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Nadine Watanabe Tape trading list upon request. 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