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MMWCAS-DSP-EVM: Processor SDK Demo, how to enable Ethernet output

Part Number: MMWCAS-DSP-EVM
Other Parts Discussed in Thread: AWR2243, AWR1243

I have a AWR2243 MMWCAS RF + DSP EVM board. 

I'm succesfully ran processor SDK's cascaded AWR1243 demo on the board on RTOS. (With some code changes as mentioned in some other posts) 

However, When testing to display the "a: Cascade Radar <4 AWR1243> Capture + Radar Object Detect <DSP>" ethernet output on example matlab code:

I got this error. 

I suspect that's because I didn't do the following step mentioned in the yellow marker so the ethernet port isn't functional. 

Question1: If I boot via sd card, is this step required?

Question2: I failed to find this TDA2xx_pad_config.gel, where could I find it and change it?