Hello Pietro di Castri:
KSDK is only available right now for a few boards, what device do you have?
Also KSDK is not prepared to be compiled with CodeWarrior since CW will not be supported. You can use instead KDS, IAR, Keil or GCC standalone tools.
Regarding the directories, the correct folder depends again on the board you use. e.g. in the TWR-SER board used with the different MCU tower boards, there is a ksz8041 Ethernet phy, while the FRDM-K64F has a ksz8081.
Regards!,
Jorge Gonzalez
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