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Original question:

MSP432P401R: Considerations when 1.8V power supply is used with on-chip DC/DC regulator

MSP432P401R: MSP‐EXP432P401R LaunchPad /or/ LPSTK-CC1352R with 1.8V Supply - How to connect to the XDS110 Debugger Headers.

gustavo zarba
Expert 1110 points

Part Number: MSP432P401R

Hi dear people,

XDS110

I have a question which was already addressed in this post https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/615707/msp432p401r-considerations-when-1-8v-power-supply-is-used-with-on-chip-dc-dc-regulator?ReplyFilter=Answers) but I need some more explanation:

I want to use 1.8V instead of 3.3V for the Supply of the MSP432 Launchpad
I therefore remove the J101 jumpers to disconnect XDS110 and use the Debugger Headers instead.

The questions are:
1) How do I connect Pin1 of each side of the the Debugger Headers?
2) Should I populate JP102 on the XDS110 side?
3) Do I need level shifters on Pins 2, 4, 6, 8 and 10?
4) The same questions arise for the LPSTK-CC1352R

I wish you a nice day!
Gustavo