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

2.3.3 Debug Probe Connection: Isolation Jumper Block

The isolation jumper block at jumper J101 allows the user to connect or disconnect signals that cross from the XDS110-ET domain into the MSPM0L1306 target domain. This includes XDS110-ET SWD signals, application UART signals, and 3.3V and 5V power.

GUID-20221006-SS0I-S4MZ-1TH9-SLVP2PBL8PGM-low.svg Figure 2-5 Debug Probe Connection
Table 2-2 Isolation Block Jumpers
Jumper Description
GND Ground
5 V 5V VBUS from USB
3V3 3.3V rail, derived from VBUS in the XDS110-ET domain
RXD<< Backchannel UART: The target MSPM0L1306 receives data through this signal. The arrows indicate the direction of the signal.
TXD>> Backchannel UART: The target MSPM0L1306 sends data through this signal. The arrows indicate the direction of the signal.
NRST RST signal
SWDIO Serial wire debug: SWDIO data signal.
SWCLK Serial wire debug: SWDCLK clock signal
BSL Bootstrap loader signal

Reasons to open these connections:

  • To remove any and all influence from the XDS110-ET debug probe for high accuracy target power measurements
  • To control 3V and 5V power flow between the XDS110-ET and target domains
  • To expose the target MCU pins for other use than onboard debugging and application UART communication
  • To expose the programming and UART interface of the XDS110-ET to be used for devices other than the onboard MCU.