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筆者自己在ZedBoard上實現的AXI DMA的測試程序。

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代碼片段和文件信息

/**
?*?Using?AXI?Direct?Memory?Access?v7.1
?*?Direct?Register?Mode
?*
?*?Author:? ZMJ@SEU
?*?Date:? 2016-07-12
?*/

#include?
#include?
#include?
#include?
#include?
#include?
#include?

#define?DMA_base_ADDR 0x40400000 //?Phy.?address?of?axi?dma
#define?DMA_TX_ADDR 0x0F000000 //?Phy.?address?of?TX?buffer
#define?DMA_RX_ADDR 0x0F800000 //?Phy.?address?of?RX?buffer

//?Scatter?/?Gather?Mode?Register?Address?(Non‐Multi?Channel?Mode)
#define?MM2S_DMACR? 0x00 //?MM2S?DMA?Control?Register
#define?MM2S_DMASR? 0x04 //?MM2S?DMA?Status?Register
#define?MM2S_SA? 0x18 //?MM2S?DMA?Source?Address?Register
#define?MM2S_LENGTH? 0x28 //?MM2S?DMA?Transfer?Length?Register
#define?S2MM_DMACR? 0x30 //

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