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dp83848cvv 发烫

Other Parts Discussed in Thread: DP83848C

您好!

我用 RMII模式,

无操作系统,

硬件是STM32F107+DP83848C,50mHz时钟由stm32f107的mco提供.

上电后,DP83848C发烫,3.3v上电流很大。

LED_ACT (DP83848 26 pin)的 黄色LED也亮了。

RJ45  插座型号HR911105。原理图如下:(附件中也是原理图的*.SCHDOC)

帮看看什么原因。谢谢。


net1.rar