SLAU318G July   2010  – March 2016

 

  1.   MSP-EXP430G2 LaunchPad™ Development Kit
    1.     Trademarks
    2. 1 Preface: Read This First
      1. 1.1 If You Need Assistance
      2. 1.2 Related Documentation From TI
    3. 2 MSP-EXP430G2 LaunchPad™ Development Kit Overview
      1. 2.1 Overview
      2. 2.2 Features
      3. 2.3 Kit Contents
      4. 2.4 Revisions
    4. 3 Installation
      1. 3.1 Download the Required Software
      2. 3.2 Install the Software
      3. 3.3 Install the Hardware
    5. 4 Getting Started With MSP-EXP430G2 LaunchPad™ Development Kit
      1. 4.1 Getting Started
      2. 4.2 Demo Application, Internal Temperature Measurement
    6. 5 Develop an Application With the MSP-EXP430G2 LaunchPad™ Development Kit
      1. 5.1 Developing an Application
      2. 5.2 Program and Debug the Temperature Measurement Demo Application
      3. 5.3 Disconnect Emulator From Target With Jumper J3
      4. 5.4 Program Connected eZ430™ Target Boards
      5. 5.5 Connecting a Crystal Oscillator
      6. 5.6 Connecting a BoosterPack™ Plug-in Module
      7. 5.7 Supported Devices
      8. 5.8 MSP-EXP430G2 On-Board Emulator
    7. 6 MSP-EXP430G2 Hardware
      1. 6.1 Device Pinout
      2. 6.2 Schematics
      3. 6.3 PCB Layout
      4. 6.4 Bill of Materials (BOM)
    8. 7 Suggested Reading
    9. 8 Frequently Asked Questions (FAQ)
  2.   Revision History

5.5 Connecting a Crystal Oscillator

The MSP-EXP430G2 LaunchPad development kit offers a footprint for a variety of crystal oscillators. The XIN and XOUT signals of the LFXT1 oscillator can support low-frequency oscillators like a watch crystals of 32768 Hz or a standard crystal with a range defined in the associated data sheet. The signal lines XIN and XOUT can also be used as multipurpose I/Os or as a digital frequency input. More information on the possibilities of the low-frequency oscillator and the possible crystal selection can be found in the MSP430x2xx Family User's Guide (SLAU144) or the device-specific data sheet.

The oscillator signals are connected to J2 to use the signals on an attached application board. In case of signal distortion of the oscillator signals that leads to a fault indication at the basic clock module, resistors R29 and R28 can be used to disconnect the pin header J2 from the oscillating lines.