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The way to protect register address from SRIO NWrite

Other Parts Discussed in Thread: TMS320C6678

hi all,

    We use SRIO for data tramsmission between DSP and FPGA in our system. The FPGA NWrite data to DSP's DDR. but now I found that the register address space has been changed by something, I cannot figure out what has done this .I have check the DSP code many times, I doubt if the FPGA 's SRIO NWrite does this. 

    I want to know that there is any way( any module ) to protect the register address space from SRIO NWrite, and keep the register space safe.Please let me kown if there is any advice on this topic.

Best Regards.

matsumoto