This is a breakout board for an MNT Reform's SOM! It's designed to make it easier to rescue a bad bootloader flash, or work on the initial bring-up of new SOMs.
Most of what it breaks out is already available on the Reform motherboard,
however USB1 is exposed as a micro usb port so that it's easy to use
manufacturer tools like
uuu that rely on USB OTG functionality.
Here is what the PCB looks like in KiCad:
Here is what the PCB looks like in real life:
Here is what an assembled board that's in-use looks like:
(please excuse my bodges; I initially used one wrong part number + one wrong footprint.)
Note the last picture includes the little STL in
enclosure/. It's not very
good, but whatever. It'll do.