Both schematics are published, carrier and module, so every pin - even the C6's SDIO lines - was read rather than guessed, and all of them land on the firmware's defaults.
Wiring
- The Type-C marked UART is power, flashing and the log.
- The other Type-C is the OTG-HS that goes to the target, so that lead is C to A.
- The Type-A socket is a host port the KVM does not use.
- PoE is only half wired: the magjack's centre taps reach a 4-pin header, but the module's 5 V has to go back in through the expansion header.
Built from the schematic, not yet run on one.
Its 40-pin header has the Raspberry Pi layout, with the capture chip's I2C bus on pins 3 and 5, so a "DS3231 for Pi" clock module should plug straight onto pins 1-9 (read from the vendor pinout, not tried on this board).
