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Article #2369Re: <Help: DSP Assembler> How to access D/A converter?
From: Izumi Ohzawa
Date: Thu, 28 Jan 1993 01:50
Date: Thu, 28 Jan 1993 01:50
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1610 bytes
In article <2B6728CE.6A0E@deneva.sdd.trw.com> kieffer@spf.trw.com (Robert Kieffer) writes: Hi folks, > >Does anyone have experience with accessing the D/A converters from within >a DSP assembly program? > >Basically, I'm writting a DSP assembly program to pipe a sine wave to the >speakers but I don't have any idea how to access the D/A converters. D/A converters have no direct connection from the DSP chip, in the way DSP program can access the D/A hardware. It is the sounddriver that keeps the D/A sample stream filled up. It is possible to set up DMA streams out of DSP and then to the D/A. A very good example code is in JeanLarouche collection of examples particularly DigEars example. Which gets sound data from DigitalEars and play it through D/A. Get JeanLarouche.tar.Z file from ccrma-ftp.stanford.edu in pub dir. -- Izumi Ohzawa [ $@Bg_78^=;(J ] USMail: University of California, 360 Minor Hall, Berkeley, CA 94720 Telephone: (510) 642-6440 Fax: (510) 642-3323 Internet: izumi@pinoko.berkeley.edu (NeXTMail OK)
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Path: arc1-ca.pugleaf.net!sparky!uunet!ukma!bogus.sura.net!howland.reston.ans.net!spool.mu.edu!agate!usenet From: izumi@pinoko.berkeley.edu (Izumi Ohzawa) Newsgroups: comp.sys.next.programmer Subject: Re: <Help: DSP Assembler> How to access D/A converter? Date: 28 Jan 1993 01:50:41 GMT Organization: University of California, Berkeley Lines: 29 Distribution: world Message-ID: <1k7e5h$gv9@agate.berkeley.edu> References: <2B6728CE.6A0E@deneva.sdd.trw.com> Reply-To: izumi@pinoko.berkeley.edu NNTP-Posting-Host: moica.berkeley.edu