I'm drawing the schematic now. It's going to take a while...
But here's the GPIO part. Hopefully no big surprises?
View attachment 17242
What’s the DMG2305UX’s function?
Valid assumption that those many extra mkl02 pins {versus T_3.x's} are somehow related to what might be a debug avenue once noted?
Why didnt you just upload the schematic from your CAD software?
I'm curious how you would build a custom board without using some form of software to design it
Have a look at https://forum.pjrc.com/threads/3525...d-board-layout?p=108451&viewfull=1#post108451
Conclusion, if you know your business post-it is all you need!
you have N11 twice, I think you meant N14 on the VDD_ADC_3v3.