W5500 Development Note series

W5500 Development Notes | 01- Description of W5500 Socket API

https://blog.51cto.com/u_13640625/3027497

This series of articles only talks about how to use the W5500 driver library and it includes the parameter description and description of return error code.

W5500 Development Notes | 02 – Using W5500 Socket API to Build TCP Server and TCP Client

https://blog.51cto.com/u_13640625/2981796

This post is description of TCP operation.