I was looking into moving seeeduino cortex-m0 board SPI port from ICSP connector to arudino pins, the standard D11=MOSI, D12=MISO, D13=SCLK.
I know that requires moving from sercom4 to sercom1, and editing variants.h for the SPI pins, and editing g_APinDescription[] in variant.cpp
Also commenting SerialDBG since its using sercom1.
Anything else?
or it might just take less time to physically wire to the ICSP connector, but yuck.