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TMDXSK437X: Design questions

Part Number: TMDXSK437X

I am using the AM437X Starter Kit as a basis for our design. There are some resistors that I am not sure what they do (EMC mitigation or timing?) and I would like to remove them if possible.

1) What is the purpose of the 0 ohm resistors in the DDR address and select lines (R98 – R121). Can I remove them?

2) What is the purpose of the 22 ohm resistors on the Ethernet Comm lines (R144 - R157). Can I remove them?

Thanks for your help.

Bob