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RM57L843: TCP/IP (lwIP) Ethernet demo EVM meaning

Part Number: RM57L843

Hello everyone,

I'm trying to setup TCP/IP (lwIP) connection between a computer and the microcontroller and I'm currently reading the demonstration page on TI wiki, but I can't understand something: 

processors.wiki.ti.com/.../HALCoGen_Ethernet_Driver_and_lwIP_Integration_Demonstration

In the "Hardware Setup" section what does EVM stand for? Can't find anything about it in the Hercules documentation, nor in the RM57L843 documentation.

And something else: a good document or step-by-step guide about setting up TCP/IP (lwIP) between the Hercules and PC would be very welcomed.

Thank you for your answers in advance,

Zsolt