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关于DP83822 Hardware Bootstrap Configuration问题-更新?

Hi,

DP83822通过MII接C6748,DP83822 Hardware Bootstrap Configuration配置如下:

测试中发现,没有焊DSP,接网线网络通,测试MII_RXDV有个3.3V到0V跳变;

焊上DSP,测试MII_RXDV只有1V左右到0V跳变,接网线不通,不知道问题原因?谢谢,