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Example Summary

Sets GPIO output based on a digital input read in a polling software loop.

Note: Example requires Rev E3 or later of the MSPM0C1104 LaunchPad.

Peripherals & Pin Assignments

Peripheral Pin Function
GPIOA PA16 Standard Input with internal pull-up
GPIOA PA22 Standard Output
GPIOA PA2 Standard Output
SYSCTL
EVENT
DEBUGSS PA20 Debug Clock
DEBUGSS PA19 Debug Data In Out

BoosterPacks, Board Resources & Jumper Settings

Visit LP_MSPM0C1104 for LaunchPad information, including user guide and hardware files.

Pin Peripheral Function LaunchPad Pin LaunchPad Settings
PA16 GPIOA PA16 J2_19
  • PA16 is connected to S2 button to GND with no external pull resistor
    • Press S2 button to connect pin to GND
    • Don’t use S2 button if not needed by application
PA22 GPIOA PA22 J1_8 N/A
PA2 GPIOA PA2 J2_13 N/A
PA20 DEBUGSS SWCLK J2_11
  • PA20 is used by SWD during debugging
    • J101 13:14 ON Connect to XDS-110 SWCLK while debugging
    • J101 13:14 OFF Disconnect from XDS-110 SWCLK if using pin in application
PA19 DEBUGSS SWDIO J2_17
  • PA19 is used by SWD during debugging
    • J101 11:12 ON Connect to XDS-110 SWDIO while debugging
    • J101 11:12 OFF Disconnect from XDS-110 SWDIO if using pin in application

Device Migration Recommendations

This project was developed for a superset device included in the LP_MSPM0C1104 LaunchPad. Please visit the CCS User’s Guide for information about migrating to other MSPM0 devices.

Low-Power Recommendations

TI recommends to terminate unused pins by setting the corresponding functions to GPIO and configure the pins to output low or input with internal pullup/pulldown resistor.

SysConfig allows developers to easily configure unused pins by selecting Board→Configure Unused Pins.

For more information about jumper configuration to achieve low-power using the MSPM0 LaunchPad, please visit the LP-MSPM0C1104 User’s Guide.

Example Usage

Compile, load and run the example. Press S2 button to see LED toggle.