From rgirard@purdue.edu Fri Dec 13 05:11:34 1996 Path: ashpoly!cascade!bigsur!purdue!rgirard From: rgirard@purdue.edu (Raj Girard) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Dec13.051134.4549@purdue.edu> Date: Fri, 13 Dec 1996 05:11:34 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 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. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Raj Girard -- Purdue University Engineering Computer Network "Hold for relay." From beriksson@kiae.su Sat Dec 14 03:24:34 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!kiae!beriksson From: beriksson@kiae.su (Bruno Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Dec14.032434.1199@kiae.su> Date: Sat, 14 Dec 1996 03:24:34 GMT References: <1996Dec13.051134.4549@purdue.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Dec13.051134.4549@purdue.edu>, rgirard@purdue.edu (Raj Girard) 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'. -- Bruno Eriksson | beriksson@kiae.su PGP Key fingerprint: EDCE 384E 9A6E EBDE "Keep the channels open." From bramirez@kiae.su Sat Dec 14 12:40:34 1996 Path: ashpoly!cascade!brgate!saturno!kiae!bramirez From: bramirez@kiae.su (Bastien Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Dec14.124034.4246@kiae.su> Date: Sat, 14 Dec 1996 12:40:34 GMT References: <1996Dec13.051134.4549@purdue.edu> <1996Dec14.032434.1199@kiae.su> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Dec14.032434.1199@kiae.su>, beriksson@kiae.su (Bruno Eriksson) writes: > I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Bastien Ramírez "Measuring a record you own is listening, not piracy." Sun SparcStation 20 / SunOS 4.1.4 From arobertson@ox.ac.uk Mon Dec 16 04:29:34 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!ox!arobertson From: arobertson@ox.ac.uk (Aiko Robertson) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Dec16.042934.8006@ox.ac.uk> Date: Mon, 16 Dec 1996 04:29:34 GMT References: <1996Dec13.051134.4549@purdue.edu> <1996Dec14.032434.1199@kiae.su> <1996Dec14.124034.4246@kiae.su> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Dec14.124034.4246@kiae.su>, bramirez@kiae.su (Bastien Ramírez) writes: > Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. PGP Public key available via finger or upon request. -- Aiko Robertson Hayes Optima 288 @ ISDN 64k bps "Do not worship the copy." From trodriguez@tum.de Wed Dec 18 05:31:34 1996 Path: ashpoly!cascade!mxgate!coyoacan!tum!trodriguez From: trodriguez@tum.de (Takeshi Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Dec18.053134.9141@tum.de> Date: Wed, 18 Dec 1996 05:31:34 GMT References: <1996Dec13.051134.4549@purdue.edu> <1996Dec14.032434.1199@kiae.su> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Dec14.032434.1199@kiae.su>, beriksson@kiae.su (Bruno Eriksson) 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. PGP Public key available via finger or upon request. -- Takeshi Rodríguez | trodriguez@tum.de PGP Key fingerprint: 7DB1 E6F5 21F9 FE67 "Keep the channels open."