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dm8107和dm8107通过PCIE通信,速度不稳定



使用一片dm8107作为RC,LINK_CAP寄存器配置为 0x135412, 采用X1通信。从板除了设置BAR寄存器,其他使用默认值。通信速度有时340M/s 有时170M/s很不稳定,请问从板8107需要配什么寄存器 才能让通信稳定。