Intel 8237-A5 DMA Programming, Anyone?

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Article #7858

#7858

From: Matt Landau
Date: Tue, 09 Sep 1986 20:55

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Does anyone in Usenet-land have experience programming the Intel 8237-A5 DMA
controller used in the IBM PC, preferably from Microsoft assembly language?
I've got the Intel data sheets, but they're not as much help as they might
be (surprise :-).  The task at hand is to communicate with a peripheral
device (someone else's) that's sending data via DMA, and to retrieve that
data into memory buffers somewhere in a Lattice C program.

Ideally, someone's already written a library of DMA communication routines
that s/he wouldn't mind sharing with the Net.  Failing that, I'll settle for
pointers and advice.

Please respond by mail, and if anyone else is interested, I'll post a
summary.  Thanks as always.
-- 
 Matt Landau      	 		BBN Laboratories, Inc.
    mlandau@diamond.bbn.com		10 Moulton Street, Cambridge MA 02238
 ...harvard!diamond.bbn.com!mlandau     (617) 497-2429

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!ut-sally!husc6!Diamond!mlandau
From: mlandau@Diamond.BBN.COM (Matt Landau)
Newsgroups: net.micro.pc,net.wanted.sources
Subject: Intel 8237-A5 DMA Programming, Anyone?
Message-ID: <731@Diamond.BBN.COM>
Date: Tue, 9-Sep-86 16:55:49 EDT
Article-I.D.: Diamond.731
Posted: Tue Sep  9 16:55:49 1986
Date-Received: Tue, 9-Sep-86 20:48:54 EDT
Reply-To: mlandau@Diamond.BBN.COM (Matt Landau)
Distribution: world
Organization: BBN Labs, Cambridge, MA
Lines: 17
Keywords: DMA assembler IBM-PC