自己开发的C6657板子，使用论坛上下载的STK_C6657软件包进行SRIO的自环测试，无论是SRIO_DIGITAL_LOOPBACK，还是SRIO_SERDES_LOOPBACK，无论自环测试时SRIO的速率设置为5、3.125、2.5还是1.25Gbps，都是在多端口测试时出现下面的错误：
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SRIO path configuration 2xLaneAB_1xLaneC_1xLaneD
SWRITE from 0x10802200 to 0x11802200 through port 0, 32768 bytes, 154461 cycles, 1697 Mbps, completion code = 0
data mismatch at unit 0, 0x532 (at 0x10802200) != 0x534 (at 0x11802200)
NWRITE from 0x1080a200 to 0x1180a200 through port 2, 32768 bytes, 292808 cycles, 895 Mbps, completion code = 0
MESSAGE from 0x c002000 to 0x11802200 through port 3, 4096 bytes, 46975 cycles, 697 Mbps, completion code = 0
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其余的测试都能通过。
上面比对错误的地址在单端口的自环测试中没有问题，如下：
STREAM from 0x10802200 to 0x11802200, 8192 bytes, 37265 cycles, 1758 Mbps, completion code = 0
