Good afternoon.
I repeated the loopback_udps() example.
STM32 receives data from PC.
When sending data from STM32 to PC (sendto() function) always returns -13(SOCKERR_TIMEOUT).
Data is not transmitted from STM32 to PC. Wireshark does not catch packets.
Tell me what could be the problem.
As soon as you get packets, MAC address, source IP address, mask, gateway IP address ad source port number must have been set properly. What is about destination IP address and destination port?
1 Like
Thanks for the answer.
I found a solution to the problem.
In the source codes of the sendto() function
setSn_CR(sn,Sn_CR_SEND);
replaced by
setSn_CR(sn,Sn_CR_SEND_MAC);
good afternoon
Tell me please.
How to read the sender’s MAC address from the Socket RX buffer register of the W5500 chip. Sn_MR_UDP mode of operation.
Is it realistic to do so.
