mnnis,
That seemed to work.
I copied in my pin order, spot checked a couple.
If pito hadn't mentioned the arrays in the file & what they represented, I woudn't have figured this out.
I am not sure why having the 1284 info separate from this file, in the arduino-extras folder, didn't work either.
So, I am moving on. RTC I2C testing next, then finding something I can talk to via SPI, and finally checking out the SD cards.