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TM4C129DNCPDT: External PHY configuration procedure

Part Number: TM4C129DNCPDT


I am working on a customized board which is having TM4C129DNCPDT microcontroller and a external PHY connected to its External PHY RMII interface. I need to configure the external PHY to get link and IP address for pinging. Is there any example code/ procedure to configure external PHY to get IP address?

I have worked on TM4C1294XL board where it is having a internal PHY and a example code(TivaWare code) for that using lwIP library. So can I modify that code to work for TM4C129DNCPDT microcontroller with external PHY? Or do I need to write the code from beginning?

Thank You.