From rlee@unam.mx Sun Aug 04 04:03:14 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!rlee From: rlee@unam.mx (Raj Lee) Newsgroups: comp.sys.m68k Subject: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug04.040314.2965@unam.mx> Date: Sun, 04 Aug 1996 04:03:14 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] 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. Archive uploaded to ftp.lip6.fr:/pub/atari/Falcon/Music/stardust_falcon.zip. -- === Raj Lee === Dept of Electrical Engineering, Universidad Nacional Autónoma de México (DGSCA) "The hatch is open. Is anyone listening?" From hivanov@purdue.edu Mon Aug 05 00:18:14 1996 Path: ashpoly!cascade!transat!ukc!fennimore!purdue!hivanov From: hivanov@purdue.edu (Heather Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug05.001814.9062@purdue.edu> Date: Mon, 05 Aug 1996 00:18:14 GMT References: <1996Aug04.040314.2965@unam.mx> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Aug04.040314.2965@unam.mx>, rlee@unam.mx (Raj Lee) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. Too bad Atari marketing was so incompetent that nobody bought the Falcon before they pulled out of the computer market. -- Heather Ivanov "There are 14 nodes and only 10 countries. Count again." Amiga 1200 (Blizzard 030/50) / NEXTSTEP 3.3 From aandersson@netcom.com Tue Aug 06 04:16:14 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!netcom!aandersson From: aandersson@netcom.com (Astrid Andersson) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug06.041614.9863@netcom.com> Date: Tue, 06 Aug 1996 04:16:14 GMT References: <1996Aug04.040314.2965@unam.mx> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Aug04.040314.2965@unam.mx>, rlee@unam.mx (Raj Lee) 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. -- Astrid Andersson -- NETCOM On-Line Communication Services "A soul is not exclusive to biology." From cduarte@unam.mx Tue Aug 06 10:43:14 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!unam!cduarte From: cduarte@unam.mx (Camila Duarte) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug06.104314.1754@unam.mx> Date: Tue, 06 Aug 1996 10:43:14 GMT References: <1996Aug04.040314.2965@unam.mx> <1996Aug06.041614.9863@netcom.com> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Aug06.041614.9863@netcom.com>, aandersson@netcom.com (Astrid Andersson) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Camila Duarte *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From dfournier@cam.ac.uk Wed Aug 07 07:06:14 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cam!dfournier From: dfournier@cam.ac.uk (Diego Fournier) Newsgroups: comp.sys.m68k Subject: Re: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Aug07.070614.3385@cam.ac.uk> Date: Wed, 07 Aug 1996 07:06:14 GMT References: <1996Aug04.040314.2965@unam.mx> <1996Aug06.041614.9863@netcom.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Aug06.041614.9863@netcom.com>, aandersson@netcom.com (Astrid Andersson) writes: > The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. Top-posters will be placed in my ~/.killfile without notice. -- Diego Fournier -- University of Cambridge Computer Laboratory "Marcus is not one man."