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TMS320C6657: TMS320C6657 SRIO Connection to FPGA Issue

Part Number: TMS320C6657

Using TMS320C6657 EVM but we are facing the following issues:

    • Tried to send data from DSP to FPGA  - “failed”
    • Tried to loopback on communication from DSP – “external loopback failed”
    • Received error number 4 on the 4 lanes on DSP
    • Have a problem with serial rapid i/o
    • Tried to send in MODE-6, no success
    • Data rate - 2.6GHz to 1.25GHz
    • Data is not being received by DSP
    • Tried to calibrate and synchronize the channel, not accessible
    • Internal loopback works properly – 2.5GHZ
    • External loopback doesn’t work - 2.5GHZ/1.25GHZ
    • No compatibility between FPGA and DSP
    • The impedance of the board doesn’t match

Please help to resolve this.