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FPGA与6678通过SRIO通信,数据doorbellfq产正常,completion code 为1?



如题FPGA与6678通过4X模式进行通讯,数据包类型为NWRITE,同时doorbell valid为1,加仿真器后发现DSP接收数据及DOORBELL中断均正常,但返回CC却为1,麻烦问下这是何原因?