Dear:
I use stm32f407+ lwip as tcp server, then the client request freq with 30Hz ,
the server will not reply after a time , then the client will retransmittion after 200 ms(see 1.png,3.png),
but the data is added to Ethernet DMA, TxBuff(see 2.png), so I think the Ethernet DMA has some problem when I send,
Please help me ,it bother me a few days,many thanks!
