From mnilsson@clari.net Fri Sep 08 02:05:10 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!clari!mnilsson From: mnilsson@clari.net (Mei Nilsson) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Sep08.020510.4662@clari.net> Date: Fri, 08 Sep 1995 02:05:10 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: Netscape 1.1N 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. Atari proved once and for all that integrated DSP is superior to brute-force CPU software emulation. -- Mei Nilsson Zyxel U-1496E @ 19,200 bps "In theory there is no difference between theory and practice." From tpetrov@rwth-aachen.de Fri Sep 08 14:44:10 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!rwth-aachen!tpetrov From: tpetrov@rwth-aachen.de (Tyler Petrov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Sep08.144410.1103@rwth-aachen.de> Date: Fri, 08 Sep 1995 14:44:10 GMT References: <1995Sep08.020510.4662@clari.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Sep08.020510.4662@clari.net>, mnilsson@clari.net (Mei Nilsson) 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'. -- Tyler Petrov *PLONK* filter active for trolls. Decstation 5000/200 - NetBSD 1.0 From rsokolov@tum.de Sat Sep 09 17:08:10 1995 Path: ashpoly!cascade!transat!ukc!fennimore!tum!rsokolov From: rsokolov@tum.de (Raj Sokolov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Sep09.170810.5142@tum.de> Date: Sat, 09 Sep 1995 17:08:10 GMT References: <1995Sep08.020510.4662@clari.net> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Sep08.020510.4662@clari.net>, mnilsson@clari.net (Mei Nilsson) 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. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. -- Raj Sokolov Zyxel U-1496E @ 28,800 bps "The carrier frequency does not drift by accident." From mlaurent@tum.de Sat Sep 09 23:40:10 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!mlaurent From: mlaurent@tum.de (Marta Laurent) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Sep09.234010.6263@tum.de> Date: Sat, 09 Sep 1995 23:40:10 GMT References: <1995Sep08.020510.4662@clari.net> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Sep08.020510.4662@clari.net>, mnilsson@clari.net (Mei Nilsson) 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. -- Marta Laurent Tape trading list upon request. SASE required for international mail. From msantos@demon.co.uk Sun Sep 10 18:20:10 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!demon!msantos From: msantos@demon.co.uk (Matthias Santos) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1995Sep10.182010.8236@demon.co.uk> Date: Sun, 10 Sep 1995 18:20:10 GMT References: <1995Sep08.020510.4662@clari.net> <1995Sep09.170810.5142@tum.de> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Sep09.170810.5142@tum.de>, rsokolov@tum.de (Raj Sokolov) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Atari Falcon vs Amiga 1200 flamewar in 3... 2... 1... -- Matthias Santos *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0