SLAU873C January   2023  – 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 MSPM0G3507 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 Up to 4-Msps High-Speed Analog-to-Digital Converter
        2. 2.3.7.2 Thermistor
        3. 2.3.7.3 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 MSPM0G3507 MCU
      1. 4.3.1 Device Documentation
      2. 4.3.2 MSPM0G3507 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 MSP430FR2355 MCU using a multimeter, use the 3V3 jumper on the

J101 jumper isolation block. The current measured includes the target device 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 MSPM0G3507 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.
    1. Disconnect unnecessary jumpers as outlined in the jumper map of Table 2-1. In particular, Analog Power jumper J13 must be removed if not using the thermistor or OPA2365 circuits.
  3. Make sure there are no floating inputs or outputs on the MSPM0G3507. This causes unnecessary extra current draw. Every I/O is either driven out or, if there is an input, then the I/O is pulled or driven to a high or low level.
  4. Begin target execution.
  5. Measure the current. Keep in mind that if the current levels are fluctuating, then getting a stable measurement is difficult. Measuring quiescent states is easier.

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