STM32F103VCT6+W5500 UDP communication is successful, and the dual-machine UDP communication between the computer and the W5500 module is realized.
It should be noted here that after the UDP sets the target port, it must be connected with this set target port. Otherwise, the communication will not be possible.
If UDP sets IP: 192.168.1.128 8000 port, the target IP 192.168.1.105 (here is the IP of my computer) port is: 8000,
then when the network assistant connects, the protocol type is: UDP, the local IP is: 192.168.1.105, the local port is: 8000, and then open it.
If it is opened successfully, you also need to set: target host IP: here is the W5500 module, 192.168.1.128 8000 port.
The default may be local, so communication is possible, but it is not relevant to the experiment.
The communication effect is as follows:
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