SLAU869E October   2022  – January 2024

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Getting Started
    1. 1.1 Introduction
    2. 1.2 Key Features
    3. 1.3 What's Included
      1. 1.3.1 Kit Contents
      2. 1.3.2 Software Examples
    4. 1.4 First Step Out-of-Box Experience
      1. 1.4.1 Connecting to the Computer
      2. 1.4.2 Running the Out-of-Box Experience
    5. 1.5 Next Steps: Looking Into the Provided Code
  5. 2Hardware
    1. 2.1 Jumper Map
    2. 2.2 Block Diagram
    3. 2.3 Hardware Features
      1. 2.3.1 MSPM0L1306 MCU
      2. 2.3.2 XDS110-ET Onboard Debug Probe With EnergyTrace Technology
      3. 2.3.3 Debug Probe Connection: Isolation Jumper Block
      4. 2.3.4 Application (or Backchannel) UART
      5. 2.3.5 Using an External Debug Probe Instead of the Onboard XDS110-ET
      6. 2.3.6 Using the XDS110-ET Debug Probe With a Different Target
      7. 2.3.7 Special Features
        1. 2.3.7.1 Thermistor
        2. 2.3.7.2 Light Sensor
    4. 2.4 Power
      1. 2.4.1 XDS110-ET USB Power
    5. 2.5 External Power Supply and BoosterPack Plug-in Module
    6. 2.6 Measure Current Draw of the MSPM0 MCU
    7. 2.7 Clocking
    8. 2.8 BoosterPack Plug-in Module Pinout
  6. 3Software Examples
  7. 4Resources
    1. 4.1 Integrated Development Environments
      1. 4.1.1 TI Cloud Development Tools
      2. 4.1.2 TI Resource Explorer Cloud
      3. 4.1.3 Code Composer Studio Cloud
      4. 4.1.4 Code Composer Studio IDE
    2. 4.2 MSPM0 SDK and TI Resource Explorer
    3. 4.3 MSPM0L1306 MCU
      1. 4.3.1 Device Documentation
      2. 4.3.2 MSPM0L1306 Code Examples
    4. 4.4 Community Resources
      1. 4.4.1 TI E2E Forums
  8. 5Schematics
  9. 6Revision History

2.6 Measure Current Draw of the MSPM0 MCU

To measure the current draw of the MSPM0L1306 MCU using a multimeter, use the 3V3 jumper on the J101 jumper isolation block. The current measured includes the target device, launchpad circuits, and any current drawn through the BoosterPack plug-in module headers.

To measure ultra-low power, follow these steps:

  1. Remove the 3V3 jumper in the J101 isolation block, and attach an ammeter across this jumper.
  2. Consider the effect that the backchannel UART and any circuitry attached to the MSPM0L1306 can have on the current draw. Consider disconnecting these at the isolation jumper block, or at least consider the current sinking and sourcing capability in the final measurement.
  3. Make sure there are no floating inputs/outputs (I/Os) on the MSPM0L1306. This causes unnecessary extra current draw. Every I/O either be driven out or, if the I/O is an input, needs to be pulled or driven to a high or low level.
  4. Begin target execution.
  5. For the most accurate current measurements, place the device in “Free Run” mode and disconnect programming signals between the MSPM0L1306 and the debug portion of the board (header J101).
  6. Measure the current. Keep in mind that if the current levels are fluctuating, then getting a stable measurement can be difficult. Measuring quiescent states is easier.
  7. Note that the thermistor circuitry on revision E1 of this board cannot be completely unpowered, and provides additional current to the measurements unless the thermistor is unpopulated.

EnergyTrace technology can also be used to compare various current profiles and better optimize your energy performance.