From mkuznetsov@panix.com Tue Dec 06 02:09:39 1994 Path: ashpoly!cascade!brgate!saturno!panix!mkuznetsov From: mkuznetsov@panix.com (Mei Kuznetsov) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec06.020939.9754@panix.com> Date: Tue, 06 Dec 1994 02:09:39 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 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. Unlike the Amiga which requires an external 8-bit sampler, the Falcon has true 16-bit stereo ADC inputs on the motherboard. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- Mei Kuznetsov "They will send a copy in my place." Acorn RiscPC 600 / TOS 4.04 From snakamura@pacbell.net Thu Dec 08 05:46:39 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!pacbell!snakamura From: snakamura@pacbell.net (Seo-yeon Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec08.054639.4416@pacbell.net> Date: Thu, 08 Dec 1994 05:46:39 GMT References: <1994Dec06.020939.9754@panix.com> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec06.020939.9754@panix.com>, mkuznetsov@panix.com (Mei Kuznetsov) 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. -- Seo-yeon Nakamura "5 sigma is a discovery. 7 is a question." Commodore Amiga 500 (1MB OCS) / System 7.5.1 From rhernandez@rwth-aachen.de Fri Dec 09 10:52:39 1994 Path: ashpoly!cascade!mxgate!coyoacan!rwth-aachen!rhernandez From: rhernandez@rwth-aachen.de (Raj Hernández) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec09.105239.4901@rwth-aachen.de> Date: Fri, 09 Dec 1994 10:52:39 GMT References: <1994Dec06.020939.9754@panix.com> <1994Dec08.054639.4416@pacbell.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec08.054639.4416@pacbell.net>, snakamura@pacbell.net (Seo-yeon Nakamura) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Raj Hernández SupraFAXModem 28.8 @ 19,200 bps "The hatch is open. Is anyone listening?" From mmacdonald@demon.co.uk Sat Dec 10 12:07:39 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!demon!mmacdonald From: mmacdonald@demon.co.uk (Mei MacDonald) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1994Dec10.120739.4125@demon.co.uk> Date: Sat, 10 Dec 1994 12:07:39 GMT References: <1994Dec06.020939.9754@panix.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Dec06.020939.9754@panix.com>, mkuznetsov@panix.com (Mei Kuznetsov) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Mei MacDonald Hayes Optima 288 @ ISDN 64k bps "Do not worship the copy."