Stick the WWAM M.2 sheet above/before the audio sheet

Include reverse polarity protection circuit along with a simulation showing its effectiveness

Move reference designators in the schematic so that they are legible

Use "Start to sheet number*100 and use first free number" designation, any new component added to the schematic will occupy the next available number in that sheet

Assign all associated signals to their respective pins on the EmCraft i.MX8M SoM

Begin creating the IMX8M-SOM schematic symbol, remove the old DART-MX8M symbol

Rename project based on the EmCraft SoM

Add logic level shifter for WWAN PCM interface, assign CONFIG_0 to GPIO3_IO20, use SAI6 for WWAN PCM since the baseband modem can be either master or slave (e.g. SIM7100 is always master)

Bring out M.2 signals to the main sheet and attach WoWWAN and RESET

Add 1.8V<->3.3V logic level shifter (NTS0102) for the WWAN M.2 slot and connect it to the i.MX8M's UART3