From msato@clari.net Tue Jun 21 05:46:26 1994
Path: ashpoly!cascade!bigsur!clari!msato
From: msato@clari.net (Marisol Sato)
Newsgroups: comp.sys.m68k
Subject: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA
Message-ID: <1994Jun21.054626.2559@clari.net>
Date: Tue, 21 Jun 1994 05:46:26 GMT
Organization: ClariNet Communications Corp
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Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier.

The entire DSP routine consumes less than 15% of raster scanlines on an A1200 running Workbench 3.1.
When the carrier locks, the program flashes the Amiga power LED to indicate binary frame synchronization!

Does anyone want to test on an unaccelerated Amiga 500 with 512K chip RAM?

-- 
Marisol Sato -- ClariNet Communications Corp
"Hold for relay."

From hfischer@tum.de Wed Jun 22 00:46:26 1994
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!tum!hfischer
From: hfischer@tum.de (Hana Fischer)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Real-time 14.2 Hz demodulation on Amiga Paula audio DMA
Message-ID: <1994Jun22.004626.7381@tum.de>
Date: Wed, 22 Jun 1994 00:46:26 GMT
References: <1994Jun21.054626.2559@clari.net>
Organization: Technische Universität München
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In article <1994Jun21.054626.2559@clari.net>, msato@clari.net (Marisol Sato) writes:
> Wrote an Amiga assembly program that uses Paula's DMA audio channels to sample and track the Stardust subcarrier.

Please make sure it's compatible with Kickstart 1.3 for those of us who haven't upgraded our A500s to 3.1 yet.

-- 
Hana Fischer
Opinions expressed are solely my own and not those of Technische Universität München.
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