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Observer cpandya90
Observer
3,348 Views
Registered: ‎05-12-2017

AXI CDMA Data Transfer from Bram to DDR in Scatter Gather Mode

Hello,

 

I want to transfer data, stored in block ram, to ddr memory using AXI CDMA block. I want to use CDMA in scatter gather mode. After that I want to create application file in SDK environment.

Can anybody tell me block diagram or any example for this process. 

 

Thank You.

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3 Replies
Observer cpandya90
Observer
3,314 Views
Registered: ‎05-12-2017

Re: AXI CDMA Data Transfer from Bram to DDR in Scatter Gather Mode

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Xilinx Employee
Xilinx Employee
3,283 Views
Registered: ‎08-02-2011

Re: AXI CDMA Data Transfer from Bram to DDR in Scatter Gather Mode

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Observer cpandya90
Observer
3,164 Views
Registered: ‎05-12-2017

Re: AXI CDMA Data Transfer from Bram to DDR in Scatter Gather Mode

Thank you @bwiec for replying.

I made connection and complete block diagram as shown below

Block_design.PNG

address_mapping.PNG

I also created software application to transfer from bram to ddr using scatter gather mode. I am using xaxicdma_example_sg_poll.c example. It got stuck after BD ring set up and at BD ring creation. I am not understanding reason of this. Here I am also attaching my application file.

If you @bwiec can help me with this.

Thank you.

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