AndrewGG

Seems indeed that you have a stack size issue with your loopsketch_oct04a. Unless you have deep calls and passing large amounts of data to those calls I doubt that you need more stack. Can you post your Sketch so that we can all have a look at it?

It will look something like this:
> help Available commands: dm dump memory wm write to memory (32 bits) wm2 write to memory (16 bits) wm1 write to memory (8 bits) dw digitalWrite to pin dr digitalRead from pin aw analogWrite to pin ar analogRead from pin pri Set task priority spi SPI transfer stats Print CPU utlization info help Get information on commands. Usage: help [command] > > stats Total CPU Load: 0.1 Task info: task: Idle/0x200004ec, pri: 0, stack usage: 336/1024, mode: READY load: 99.8 task: mon_loop/0x200023b8, pri: 2, stack usage: 668/2048, mode: RUNNING load: 0.1 Hwi stack usage: 440/1024 Heap usage: 2312/56400

You can use Serial1.xyz. Serial1 is located on pins 3/4 (P3_2 / P3_3). See the pinmap posted here: http://energia.nu/pin-maps/guide_msp432p401r/

The library is designed for the AVR MCU, not the MSP432.