,上电后LED_SPEED常亮,说明工作在100Mbps的条件下,TX_CLK,RX_CLK引脚均为25Mhz。速率自协商,程序返回速率标志只有10M,请帮忙分析一下可能的原因?谢谢! if((phyreg & PHY_SPEED_STATUS) == PHY_SPEED_STATUS) { /* Set Ethernet speed to 10M following the auto-negotiation */ (heth->Init).Speed = ETH_SPEED_10M; } else { /* Set Ethernet speed to 100M following the auto-negotiation */ (heth->Init).Speed = ETH_SPEED_100M; } 上述返回(heth->Init).Speed = ETH_SPEED_10M; |
检查一下硬件,看看发送和接收是不是各接了4条线呢 |
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