Dennis Field / dvk-mx8m-bsb - History

Make all sheets except the top-level one identical to master, also checkout master's dvk-mx8m-bsb-cache.lib file

Add GNSS antenna footprint including correct 50Ohm feed line dimensions and keepout area, add u-blox MAX-8 3D model, rename all instances of MAX-M8* to MAX-8* due to part selection, antenna feed line calculatos included (coplanar waveguide)

Need to add placeholder footprints for the other four antennae which will be represented as simple rectangular areas where the antennae will occupy. After that, all that is left is to assign the various remaining IC footprints and finally import all footprints into PCBNew & begin layout!

Create footprint for cap touch FPC connector and assign it, add cap touch FPC connector 3D model, assign M.2 Key E socket footprint, assign JTAG header footprint (will be unpopulated)

M.2 footprints will need mounting holes added to them for the modules to be brought close to the baseboard, this may pose a problem with the display mounted on the back and might need to be done a different way (needs evaluation). Cap touch and DSI connectors need to be carefully placed in the layout to make sure they are positioned correctly with respect to the display's FPCs and the outline of the display itself (need dimensions ASAP). JTAG header can be placed on the back of the board with the header unpopulated, will be hidden as it's only intended for intense last resort debugging option.

Assign jumper header footprints and component properties, selected based on required current rating and minimized area occupied, assigned 1.5mm diameter test points

new structure of first page in the schematics
more direct connections instead of labels
interconnection of schematic blocks (e.g. USB hub) is made visible
format of page is now A3 instead of A2 -> better font quality when printed on small paper

added company logo and designers email addresses into drawing area
new library with symbol of Emcraft-SOM (for later use)

Add quartz crystal footprints, reassign BHC-18650-1P footprint & associated component properties, add BHC-18650-1P 3D model

Add FET (Q* reference designators) footprints

Some footprints are slightly edited versions of their KiCad official library equivalents, using the existing 3D models. DMG2301L's SOT-23 footprint is identical to the official one in the KiCad library.

Connect VCC of the USB1_VBUS comparitor (TLV3201AIDBVR) to 5V_SOM instead of 5V_P so that VBUS presence can be detected quickly enough for the USB Serial Downloader bootmode, connect the TVS diodes on the HDMI receptacle to the proper pins