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RTOS/66AK2E05: Enabling DUAL ETH port using NDK

Part Number: 66AK2E05

Tool/software: TI-RTOS

I'm trying to utilize dual port ETH in EVMK2E.

The EVM has two saperate ETH ports. 

In PDK folder, there is NIMU eth example for ARM.

It works well for single ETH port. 

I found some reference for that issue as follows.

processors.wiki.ti.com/.../Using_two_DM648_EMACs_separately EMAC ndk&tisearch=Search-EN-Everything

e2e.ti.com/.../1351759

But when i compared the reference  code with 66AK2E ndk transport code located in folder - " \ti\pdk_k2e_4_0_6\packages\ti\transport\ndk\nimu".

The code for 66AK2E only support single port ETH ( i guess).

To enable dual port eth in RTOS. More implemetation will be needed addtional to the "nimu_eth.c".

The works could be complicated one. Cause users don't know the exact matching of cue's, switchs, drivers and EMACs.  

Is there any 2port ETH example for 66AK2E05 TI RTOS ?

Or Would you explain how I add code for it?