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0xCDCDCD received while PCIe DMA transfer

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syedshan

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Hello every one,

To be cut short, I am using an FPGA based design that communicates thru PCIe DMA transfer.
Now I am getting some data from my FPGA device which I should get, but other wise I am getting 0xCDCD...Now I am totally confused why am I getting this...please can some one tell in this regards.


What is the maximum length of DMA transfer we can perform in PCIe communication.

Thanks
 

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