Thanks for your help! I thought port d was strange, but I figured that the examples files included would compile. I saw that the devices file is shorter than the regular PCB, but again, I assumed... ...
I have PCM, but just d/l MPLAB 7.5, and was surprised to see pcb was included. I installed MPLAB, and tried to compile ex_rtc.c using pcb. I got the errors that there is an undefined or undeclared d ...