Help doing DMA

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#600

From: Mike Walma
Date: Mon, 04 Jun 1990 15:25

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For an application my company is looking at doing, we need to develop
some expertise with DMA transfers on AT clones.  The problem at hand involves
putting a DMA device in a pipe that would take data in memory, pass it
through the DMA device, and back into memory, all without processor
involvement.  The amount of data involved is quite large, and local
buffers on the DMA device relatively small, so it would be a real pipe,
involving interleaved reads and writes, on different DMA channels.

What I would like from the net is pointers to good references on DMA
programming.  Thanks in advance.

-- 
Mike Walma   -- Focus Systems -- Waterloo, Ontario
               watmath!focsys!mike  (519) 746-4918

Technical Details

Message-ID: <1990Jun4.152523.10486@focsys.uucp>

Path: arc1-ca.pugleaf.net!utzoo!utgpu!watserv1!maytag!focsys!mike

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Newsgroups: comp.sys.ibm.pc.programmer
Path: arc1-ca.pugleaf.net!utzoo!utgpu!watserv1!maytag!focsys!mike
From: mike@focsys.uucp (Mike Walma)
Subject: Help doing DMA
Message-ID: <1990Jun4.152523.10486@focsys.uucp>
Reply-To: mike@focsys.UUCP (Mike Walma)
Organization: Focus Automation Systems, Waterloo, Ontario.
Date: Mon, 4 Jun 90 15:25:23 GMT
Lines: 14