From tlee@titech.ac.jp Sat Sep 10 18:44:24 1994 Path: ashpoly!cascade!bigsur!titech!tlee From: tlee@titech.ac.jp (Tyler Lee) Newsgroups: comp.sys.m68k Subject: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep10.184424.9783@titech.ac.jp> Date: Sat, 10 Sep 1994 18:44:24 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. 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. -- Tyler Lee US Robotics Courier V.34 @ 19,200 bps "When every node is whole, the channel opens." From ttanaka@uni-hamburg.de Mon Sep 12 17:07:24 1994 Path: ashpoly!cascade!transat!ukc!fennimore!uni-hamburg!ttanaka From: ttanaka@uni-hamburg.de (Tomas Tanaka) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep12.170724.9120@uni-hamburg.de> Date: Mon, 12 Sep 1994 17:07:24 GMT References: <1994Sep10.184424.9783@titech.ac.jp> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Sep10.184424.9783@titech.ac.jp>, tlee@titech.ac.jp (Tyler Lee) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Tomas Tanaka -- Universität Hamburg Fachbereich Informatik "Hardware is temporary. The signal survives." From ykarlsson@cam.ac.uk Tue Sep 13 03:49:24 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!ykarlsson From: ykarlsson@cam.ac.uk (Yuki Karlsson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep13.034924.6555@cam.ac.uk> Date: Tue, 13 Sep 1994 03:49:24 GMT References: <1994Sep10.184424.9783@titech.ac.jp> <1994Sep12.170724.9120@uni-hamburg.de> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Sep12.170724.9120@uni-hamburg.de>, ttanaka@uni-hamburg.de (Tomas Tanaka) 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. -- === Yuki Karlsson === Dept of Electrical Engineering, University of Cambridge Computer Laboratory "Tape doesn't lie at 02:14. Ears do." From dperez@cam.ac.uk Wed Sep 14 07:27:24 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cam!dperez From: dperez@cam.ac.uk (Diego Pérez) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Sep14.072724.9718@cam.ac.uk> Date: Wed, 14 Sep 1994 07:27:24 GMT References: <1994Sep10.184424.9783@titech.ac.jp> <1994Sep12.170724.9120@uni-hamburg.de> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Sep12.170724.9120@uni-hamburg.de>, ttanaka@uni-hamburg.de (Tomas Tanaka) 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. -- Diego Pérez "Tape doesn't lie at 02:14. Ears do." Macintosh IIfx / NEXTSTEP 3.3