OK.  I'll see what I can do to help.  I just bought one, so we'll see how it goes! I see 5.25 has the P4111 as an unimplemented variant.  Where can I find the source for the board files in github? I tried this location but its 5.6.1: https://github.com/energia/msp432r-core/tree/master/variants/MSP_EXP432P401R