From lwatanabe@demon.co.uk Sun Dec 17 10:50:22 1995 Path: ashpoly!cascade!brgate!saturno!demon!lwatanabe From: lwatanabe@demon.co.uk (Lars Watanabe) Newsgroups: comp.sys.m68k Subject: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec17.105022.5524@demon.co.uk> Date: Sun, 17 Dec 1995 10:50:22 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 10 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. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Lars Watanabe Tape trading list upon request. SASE required for international mail. From ofournier@clari.net Tue Dec 19 06:42:22 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!clari!ofournier From: ofournier@clari.net (Olga Fournier) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec19.064222.9188@clari.net> Date: Tue, 19 Dec 1995 06:42:22 GMT References: <1995Dec17.105022.5524@demon.co.uk> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Dec17.105022.5524@demon.co.uk>, lwatanabe@demon.co.uk (Lars Watanabe) 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'. -- Olga Fournier US Robotics Courier V.34 @ 19,200 bps "There are 14 nodes and only 10 countries. Count again." From mtanaka@hanse.de Wed Dec 20 00:37:22 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!hanse!mtanaka From: mtanaka@hanse.de (Mathieu Tanaka) Newsgroups: comp.sys.m68k Subject: Re: Observation: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Dec20.003722.9341@hanse.de> Date: Wed, 20 Dec 1995 00:37:22 GMT References: <1995Dec17.105022.5524@demon.co.uk> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Dec17.105022.5524@demon.co.uk>, lwatanabe@demon.co.uk (Lars Watanabe) 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. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- === Mathieu Tanaka === Dept of Electrical Engineering, Hanse-Netzwerk Hamburg "They will send a copy in my place."