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DMA 的代码
dma.h
#ifndef __DMA_H__
#define __DMA_H__
void Test_DMA(void);
#endif /*__DMA_H__*/
dma.h
#ifndef __DMA_H__
#define __DMA_H__
void Test_Zdma0(void);
void Test_Zdma1(void);
//void Test_Zdma0Xdreq(void);
#endif /*__DMA_H__*/
dma.c
/**********************************************************************
CAUTION: DMA operation is being done in cache-on state NOW.
So,some read value may be not same with real memory value
dma.h
/* $Id: dma.h,v 1.7 1992/12/14 00:29:34 root Exp root $
* linux/include/asm/dma.h: Defines for using and allocating dma channels.
* Written by Hennus Bergman, 1992.
* High DMA channel support & inf
dma.txt
NIOS II <mark>DMA</mark>
0
推荐NIOS <mark>DMA</mark>同样是Altera SOPC Builder库组件
<mark>DMA</mark>可用于存储器之间、存储器与外设、外设之间的数据传输，允许没有ＣＰＵ干预，完成固定长度或者可变长度的数据传输
<mark>DMA</mark>外设通过两个Avalon主端口（一读一写）和一从端口控制。
典型<mark>DMA</mark>传递过程如下：
１。通过写控制端口设置ＤＭＡ的数据传输方式
２。启动ＤＭＡ外设，实施数据传输（ ...
dma.h
/*
* DMA region bookkeeping routines
*
* Copyright (C) 2002 Maas Digital LLC
*
* This code is licensed under the GPL. See the file COPYING in the root
* directory of the kernel sources fo
dma.c
/*
* DMA region bookkeeping routines
*
* Copyright (C) 2002 Maas Digital LLC
*
* This code is licensed under the GPL. See the file COPYING in the root
* directory of the kernel sources fo
dma.c
#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include "dma.h"
#define DMA_CHECK_ATTR 1
typedef struct{ //can't use __packed???