SLAU647O July   2015  – April 2020

 

  1.   MSP Debuggers
    1.     Trademarks
    2. 1 Introduction
      1. 1.1 Related Documentation From Texas Instruments
      2. 1.2 Terms and Abbreviations
      3. 1.3 If You Need Assistance
    3. 2 MSP Debug Probe Overview
      1. 2.1 Known Limitations
    4. 3 Hardware Identification
      1. 3.1 How to Determine If Your Hardware is Based on eZ-FET or eZ-FET Lite
      2. 3.2 How to Determine If Your Hardware is Based on eZ430
      3. 3.3 Signal Connections for In-System Programming and Debugging
      4. 3.4 Using the Power Supply Feature of the eZ-FET and eZ-FET Lite
      5. 3.5 Using the Power Supply Feature of the MSP-FET430UIF and MSP-FET
    5. 4 Hardware Installation
      1. 4.1 MSP-FET430PIF
      2. 4.2 MSP-FET430UIF, MSP-FET, eZ-FET, and eZ-FET Lite
      3. 4.3 eZ430-Based Experimenter Boards and LaunchPad Kits
      4. 4.4 Hardware Installation Using the MSP Flasher
      5. 4.5 Hardware Installation Using CCS Cloud
    6. 5 Debug Probes Hardware and Software
      1. 5.1  MSPDebugStack
      2. 5.2  Ultra-Low-Power (ULP) Debug Support
      3. 5.3  EnergyTrace™ Technology
      4. 5.4  Unlimited Software Breakpoints in Flash, FRAM, and RAM
      5. 5.5  JTAG Access Protection (Fuse Blow)
      6. 5.6  MSP-FET Stand-Alone Debug Probe
        1. 5.6.1 General Features
        2. 5.6.2 Backchannel UART
          1. 5.6.2.1 UART Backchannel Activation Commands
        3. 5.6.3 Target BSL Connection and BSL-Scripter Support
        4. 5.6.4 LED Signals
        5. 5.6.5 Hardware
          1. 5.6.5.1 JTAG Target Connector
          2. 5.6.5.2 MSP-FET Pin States After Power Up
          3. 5.6.5.3 MSP-FET HID Cold Boot
          4. 5.6.5.4 Schematics
            1. 5.6.5.4.1 MSP-FET Rev 2.5 Schematics
            2. 5.6.5.4.2 MSP-FET Rev 1.2 Schematics
        6. 5.6.6 Specifications
          1. 5.6.6.1 Hardware
          2. 5.6.6.2 MSP430 MCUs
          3. 5.6.6.3 SimpleLink MSP432 MCUs
      7. 5.7  MSP-FET430UIF Stand-Alone Debugger
        1. 5.7.1 General Features
        2. 5.7.2 LED Signals
        3. 5.7.3 Hardware
          1. 5.7.3.1 JTAG Target Connector
          2. 5.7.3.2 Pin States After Power Up
          3. 5.7.3.3 Schematics
      8. 5.8  eZ-FET and eZ-FET Lite Onboard Emulation
        1. 5.8.1 General Features
        2. 5.8.2 Backchannel UART
          1. 5.8.2.1 eZ-FET and eZ-FET Lite UART Backchannel Activation Commands
        3. 5.8.3 LED Signals
        4. 5.8.4 Hardware
          1. 5.8.4.1 JTAG Target Connector
          2. 5.8.4.2 Connecting MSP-FET to LaunchPad Development Kit
          3. 5.8.4.3 Pin States After Power Up
          4. 5.8.4.4 Schematics
            1. 5.8.4.4.1 eZ-FET Rev 1.2 Schematics
            2. 5.8.4.4.2 eZ-FET Lite Schematics
            3. 5.8.4.4.3 eZ-FET Rev 1.4 Schematic
            4. 5.8.4.4.4 eZ-FET Rev 2.0 ET Schematics
      9. 5.9  eZ430 Onboard Emulation
        1. 5.9.1 General Features
        2. 5.9.2 Backchannel UART
        3. 5.9.3 Hardware
          1. 5.9.3.1 JTAG Target Connector
          2. 5.9.3.2 Pin States After Power Up
          3. 5.9.3.3 Schematics
      10. 5.10 MSP-FET430PIF
        1. 5.10.1 General Features
        2. 5.10.2 Schematics
  2.   Revision History

3.5 Using the Power Supply Feature of the MSP-FET430UIF and MSP-FET

All MSP debug probes can supply targets with up to 100 mA through pin 2 of the 14-pin JTAG connector.

NOTE

The target should not consume more than 60 mA at peak current, as it may violate the USB specification. Details can found on www.usb.org.

Example: If the target board has a capacitor on the VCC line with a capacity of more than 10 µF, it may cause an inrush current during capacitor charging that may exceed 60 mA. In this case, the current should be limited by the design of the target board, or an external power supply should be used.

Target VCC is selectable in a range between 1.8 V and 3.6 V in steps of 0.1 V.

Alternatively, the target can be supplied externally. In this case, the external voltage should be connected to pin 4 of the 14-pin JTAG connector. MSP-FET tools adjusts the level of the JTAG signals to automatically match the external VCC.

NOTE

Only pin 2 (MSP-FET tool supplies target) or pin 4 (target is externally supplied) must be connected. Both connections are not supported at the same time.

Even if an external supply powers the target device on the target socket module and any user circuitry connected to the target socket module, the MSP-FET tool continues to be powered from the PC through the USB interface.

NOTE

MSP-FET430PIF only

The PC parallel ports with a connected MSP-FET430PIF can source a maximum current of 25 mA. Because of the ultra-low-power requirement of the MSP430, a stand-alone MSP430 does not exceed the provided current. However, if additional circuits are added, the current limit could be exceeded. In this case, the MSP430 must be supplied externally.

Table 3. Power Supply of MSP-FET430UIF and MSP-FET

Emulation Tool ET Circuitry
(Maximum Current)		 Onboard LDO
(Maximum Current)		 Support to Switch Between ET and LDO
MSP-FET v1.x Y (100 mA) N N
MSP-FET v2.x Y (100 mA) Y (100 mA) N
MSP-FET430UIF N Y N