I am using BCM920737TAG-03 to send some data over puart to a sensor? I need to connect the ground of the boards together, where is the ground pin of the tag 3?
Also for puart, should I use P32 and P33 from GPIO pins on the board? then should all the switches on SW4 be on?
should I change SW4 switches (which one?) and use the pins on JP1 for puart?