atdt got a reaction from Fmilburn in LPM3 with Energia EMT and MSP432
I think I finally figured it out. It appears that others have seen this behavior as well, and that it indicates a non working MSP432: https://e2e.ti.com/support/microcontrollers/msp430/f/166/t/449768#pi316701=2
Because of the whole revision A/B happening right now, I won't have new boards to test from the fab for a few weeks. But I am looking forward to.
Thanks to everybody for their help