The PCC header on the SAM E54 Xplained Pro board is by default not functional due to shared connections with
Ethernet, QTouch, SD Card, EXT1, and EXT2.
To modify the kit to fully enable the PCC header, do the following:
- Remove the resistors: R621, R622,
R623, R624, R625, R626, R628, R629, R630 to separate the Ethernet PHY from the
lines
- Mount 0Ω resistors: R205, R206, R207,
R208
- Optionally remove: R308 (There is no
contention here, but can represent a large load on the signal.)
- Remove any SD/SDIO cards from the SD
Card connector
CAUTION: PCC
will not work at the same time as Ethernet, SD Card, QTouch, and I2C on
EXT1.
Info: Revert
the steps to restore the original functionality. Use 0Ω resistors or solder blobs to
short strap.