做了一块板子,dsp8148通过rgmii和88e1111连接,phy芯片硬件link完全正常识别10/100/1000M,
但和上位机无法通信,发现将rxclk上的串接电阻从原来的33欧姆改为200或者300欧姆时,十兆和百兆模式可以ping通,但是千兆始终不行,有没有大神见过这种现象的,求解
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
12ns超出手册范围了。看到下面的帖子通过修改电阻解决了,是同一个问题么?
e2echina.ti.com/.../186522