DMA from main mem. to VME controller?

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Article #1364

#1364

From: Jeffrey Mulligan
Date: Thu, 31 Aug 1989 19:05

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We are developing a driver for a dma controller that sits on the vme bus.
Is it possible to get it to address main memory?  The feeling I get from
the manual is that it is possible, and that is invloves the use of the
mbsetup() routine to get the relevant part of main memory to appear in the
DVMA window; if anyone can shed any light on this or recommend specific
sections of the manual it would be greatly appreciated.

	Jeff Mulligan (jbm@aurora.arc.nasa.gov)
	NASA/Ames Research Ctr., Mail Stop 239-3, Moffet Field CA, 94035
	(415) 694-3745

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From: jbm@aurora.arc.nasa.gov (Jeffrey Mulligan)
Newsgroups: comp.sys.sun
Subject: DMA from main mem. to VME controller?
Keywords: SunOS
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Date: 31 Aug 89 19:05:07 GMT
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