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C6748连接DP83822问题

使用C6748连接DP83822,我公司一批做了10块电路板,发现其中有两块网络连接不上,其他八块都正常工作。出现问题的电路板接上仿真器调试,发现下面代码处出现问题。

if(!((MDIOPhyAliveStatusGet(sitaraif->mdio_base)>> sitaraif->phy_addr) & 0x01 ))

{

return ERR_CONN;

}

不知道是焊接问题还是芯片有问题?

DP83822