Ethernet configuration issue
HI STM team,
I am using NUCLEO-F439ZI BOARD. I am new to this board. According to the basic configuration the ETH selection shows the warning symbol, reference based on the internet example, the ethernet configuration it does not show the PHY Address option. while I choose RMII mode. The portB _PIN0 select as GPIO output, but that same pin is used for ETH_RXD2, this selection makes the warning symbol. when I bye-pass warning and use the program for pinging it shows the connection failure and timeout error message. The below code is used to ping the Ethernet connection.
extern struct netif gnetif;
...........MAIN..........
while (1) {
ethernetif_input(&gnetif);
sys_check_timeouts();
}
The problem screen shot was attached below.

the LWIP setting also attached below

notify the mistake done by me, if any example to learn this one, send the link/example code.
