Hi.The cause of the issue being inquired about below might be due to tick precision, so I am making an additional posthttps://community.st.com/t5/stm32-mcus-products/the-microcontroller-sometimes-cannot-receive-tcp-data/td-p/729099 In my system, the ...

Hi.In my system, the opposing device sends TCP data at 20ms intervals,and the microcontroller receives the TCP data non-blocking at 20ms intervals.Therefore, the ethernetif_input() function of LWIP is supposedto be called at 20ms intervals and store ...