M487 网口 DHCP 获取IP地址失败的问题

使用EMAC_TxRx例程


地址修改为0
#define EMAC_PHY_ADDR      0UL    /*!<  PHY address, this address is board dependent \hideinitializer */


没有成功获取到IP地址

[2025-12-22 09:45:52.048]# RECV ASCII>
EMAC sample code start


[2025-12-22 09:45:55.208]# RECV ASCII>
DHCP DISCOVER...


[2025-12-22 09:45:55.473]# RECV ASCII>
DHCP DISCOVER retry: 1


[2025-12-22 09:45:55.741]# RECV ASCII>
DHCP DISCOVER retry: 2


[2025-12-22 09:45:55.990]# RECV ASCII>
DHCP DISCOVER retry: 3


[2025-12-22 09:45:56.271]# RECV ASCII>
DHCP DISCOVER retry: 4


[2025-12-22 09:45:56.520]# RECV ASCII>
DHCP DISCOVER retry: 5


[2025-12-22 09:45:56.801]# RECV ASCII>
DHCP DISCOVER retry: 6


[2025-12-22 09:45:57.049]# RECV ASCII>
DHCP DISCOVER retry: 7


[2025-12-22 09:45:57.314]# RECV ASCII>
DHCP DISCOVER retry: 8


[2025-12-22 09:45:57.581]# RECV ASCII>
DHCP DISCOVER retry: 9


[2025-12-22 09:45:57.833]# RECV ASCII>
DHCP DISCOVER retry: 10


[2025-12-22 09:45:58.112]# RECV ASCII>
DHCP DISCOVER retry: 11


[2025-12-22 09:45:58.365]# RECV ASCII>
DHCP DISCOVER retry: 12


[2025-12-22 09:45:58.627]# RECV ASCII>
DHCP DISCOVER retry: 13


[2025-12-22 09:45:58.892]# RECV ASCII>
DHCP DISCOVER retry: 14


[2025-12-22 09:45:59.156]# RECV ASCII>
DHCP DISCOVER retry: 15


[2025-12-22 09:45:59.424]# RECV ASCII>
DHCP failed, use static IP 192.168.10.10