SLAU739 October   2017

 

  1.   MSP430FR2433 LaunchPad™ Development Kit (MSP‑EXP430FR2433)
    1.     Trademarks
    2. 1 Getting 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 Steps: Out-of-Box Experience
        1. 1.4.1 Connecting to the Computer
        2. 1.4.2 Running the Out-of-Box Demo
      5. 1.5 Next Steps: Looking Into the Provided Code
    3. 2 Hardware
      1. 2.1 Block Diagram
      2. 2.2 Hardware Features
        1. 2.2.1 MSP430FR2433 MCU
        2. 2.2.2 eZ-FET Onboard Debug Probe With EnergyTrace Technology
        3. 2.2.3 Debug Probe Connection: Isolation Jumper Block
        4. 2.2.4 Application (or Backchannel) UART
        5. 2.2.5 Optional Features
          1. 2.2.5.1 Supercapacitor
      3. 2.3 Power
        1. 2.3.1 eZ-FET USB Power
        2. 2.3.2 BoosterPack and External Power Supply
        3. 2.3.3 Supercap (C6)
          1. 2.3.3.1 Charging the Supercap
          2. 2.3.3.2 Using the Supercap
          3. 2.3.3.3 Disabling the Supercap
      4. 2.4 Measure Current Draw of the MSP430 MCU
      5. 2.5 Clocking
      6. 2.6 Using the eZ-FET Debug Probe With a Different Target
      7. 2.7 BoosterPack Pinout
      8. 2.8 Design Files
        1. 2.8.1 Hardware
        2. 2.8.2 Software
      9. 2.9 Hardware Change log
    4. 3 Software Examples
      1. 3.1 Out-of-Box Software Example
        1. 3.1.1 Source File Structure
        2. 3.1.2 Overview
        3. 3.1.3 FRAM Data Logging Mode
        4. 3.1.4 Live Temperature Mode
      2. 3.2 Blink LED Example
        1. 3.2.1 Source File Structure
    5. 4 Resources
      1. 4.1 Integrated Development Environments
        1. 4.1.1 TI Cloud Development Tools
          1. 4.1.1.1 TI Resource Explorer Cloud
          2. 4.1.1.2 Code Composer Studio Cloud
        2. 4.1.2 Code Composer Studio IDE
        3. 4.1.3 IAR Embedded Workbench for Texas Instruments 430
      2. 4.2 LaunchPad Websites
      3. 4.3 MSPWare and TI Resource Explorer
      4. 4.4 FRAM Utilities
        1. 4.4.1 Compute Through Power Loss (CTPL)
        2. 4.4.2 Nonvolatile Storage (NVS)
      5. 4.5 MSP430FR2433 MCU
        1. 4.5.1 Device Documentation
        2. 4.5.2 MSP430FR2433 Code Examples
        3. 4.5.3 MSP430 Application Notes and TI Designs
      6. 4.6 Community Resources
        1. 4.6.1 TI E2E Community
        2. 4.6.2 Community at Large
    6. 5 FAQ
    7. 6 Schematics

2.4 Measure Current Draw of the MSP430 MCU

To measure the current draw of the MSP430FR2433 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 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 MSP430FR2433 may have on current draw. Consider disconnecting these at the isolation jumper block, or at least consider their current sinking and sourcing capability in the final measurement.
  3. Make sure there are no floating inputs/outputs (I/Os) on the MSP430FR2433. These cause unnecessary extra current draw. Every I/O should either be driven out or, if it is an input, should be 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, it may be difficult to get a stable measurement. It is easier to measure quiescent states.

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