Hi I wanted to make sure i'm not reading the wrong documentation or counting wrong,
But everytime I look at my Portenta H7 I count 42 pins on each side of the B2B connector (J1 and J2), so 84 total. The STEP file from snapEDA.com also shows 42 on each side.
The documentation online all says 80. So there are 4 extra pins on each connector, and you can see this in the image below when I compare the foorprint to the STEP file.
Where is the misunderstanding?
I need to make a PCBA to connect to the H7, should I trust what I physically see or go with all the documentation part numbers?
Or are those extra 4 pins for ground and it's not documented well?