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Explorer
Explorer
5,492 Views
Registered: ‎06-22-2011

AXI DMA to On-Chip Memory

hi all,

 

I have a AXI DMA in SG mode, and I need to stream my data to DDR3.

In MB program, I set the BD list and data buffer to DDR3. My program can modify the DDR3 memory, the result can be verified in memory browser.

When I started a S2MM transfer, by chipscope the AXI interface of ddr3, I am sure there are memory write transactions to data buffer and BD status register. But in memory browser, the content of ddr3 does not change.

 

Could anybody tell me the reason?

 

best regards

 

Xiang Chao

 

 

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1 Reply
Xilinx Employee
Xilinx Employee
5,482 Views
Registered: ‎08-02-2011

Re: AXI DMA to On-Chip Memory

Hi Xiang,

Make sure to disable caching first.
www.xilinx.com
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