From mpetrov@netcom.com Sat Feb 03 12:08:54 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!netcom!mpetrov From: mpetrov@netcom.com (Mateo Petrov) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb03.120854.1038@netcom.com> Date: Sat, 03 Feb 1996 12:08:54 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 11 Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. 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. -- Mateo Petrov | mpetrov@netcom.com PGP Key fingerprint: F85F E901 3523 890E "Keep the channels open." From gweber@illinois.edu Mon Feb 05 00:21:54 1996 Path: ashpoly!cascade!brgate!saturno!illinois!gweber From: gweber@illinois.edu (Göran Weber) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb05.002154.6035@illinois.edu> Date: Mon, 05 Feb 1996 00:21:54 GMT References: <1996Feb03.120854.1038@netcom.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996Feb03.120854.1038@netcom.com>, mpetrov@netcom.com (Mateo Petrov) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'. -- Göran Weber *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From flindqvist@berkeley.edu Tue Feb 06 17:42:54 1996 Path: ashpoly!cascade!transat!ukc!fennimore!berkeley!flindqvist From: flindqvist@berkeley.edu (Freya Lindqvist) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb06.174254.5147@berkeley.edu> Date: Tue, 06 Feb 1996 17:42:54 GMT References: <1996Feb03.120854.1038@netcom.com> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Feb03.120854.1038@netcom.com>, mpetrov@netcom.com (Mateo Petrov) writes: > Real-time spectral waterfall and DBPSK demodulator for TOS 4.04. > The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise. The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Freya Lindqvist Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------ From tandersson@titech.ac.jp Tue Feb 06 22:49:54 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!titech!tandersson From: tandersson@titech.ac.jp (Tyler Andersson) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction Message-ID: <1996Feb06.224954.5363@titech.ac.jp> Date: Tue, 06 Feb 1996 22:49:54 GMT References: <1996Feb03.120854.1038@netcom.com> <1996Feb06.174254.5147@berkeley.edu> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1996Feb06.174254.5147@berkeley.edu>, flindqvist@berkeley.edu (Freya Lindqvist) 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. -- Tyler Andersson -- Tokyo Institute of Technology Computer Centre "Do not worship the copy."