Hello,
I am trying to play with board to board communication over ethernet. There are no jacks, no cables… I want to wire them up directly on a PCB.
In this case, is there any reason for the magnetics? or can I disregard that in my case?
are the boards so far apart that you cannot merely use a UART or SPI?
The transformers are only required if you want a balanced transmission line. If you don’t need the distance, its not required.