SLVUC36 April   2021 TPS23882B

 

  1.   Trademarks
  2. 1Description
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Quick Start
    1. 2.1 Input Power
      1. 2.1.1 Input Power (Labeled VPWR)
      2. 2.1.2 Local 3.3 V (Labeled 3.3 V)
      3. 2.1.3 External 3.3 V (Labeled 3.3 V_USB)
    2. 2.2 PoE Port Interfaces
      1. 2.2.1 IEEE802.3bt 2-Pair Ports
    3. 2.3 I2C Interfaces
      1. 2.3.1 USB2ANY
      2. 2.3.2 MSP-EXP430FR5969
    4. 2.4 Basic Test Setup Using Autonomous Mode
    5. 2.5 Basic Test Setup Using USB2ANY for I2C Interface (Auto Mode or Semi-Auto Mode Operation with I2C Monitoring)
    6. 2.6 Advanced Test Setup Using MSP-EX430FR5969 LaunchPad
  4. 3General Use Features
    1. 3.1 EVM Input/Output Connectors and Switches
    2. 3.2 EVM LEDs
    3. 3.3 EVM Test Points
    4. 3.4 EVM Test Jumpers
  5. 4TPS23882B1 GUI Setup
    1. 4.1 TPS23882B1 GUI Installation
    2. 4.2 TPS23882B1GUI Operation
    3. 4.3 MSP-EXP430FR5969 Details
      1. 4.3.1 Basic CCS and Terminal Setup
    4. 4.4 MSP430 Reference Code
      1. 4.4.1 Overview
      2. 4.4.2 Auto Mode
      3. 4.4.3 Semi Auto Mode
  6. 5EVM Schematic, Layout Guidelines, PCB Assembly and Layer Plots
    1. 5.1 Schematic
    2. 5.2 Layout Guidelines
      1. 5.2.1 Supply Voltage Decoupling
      2. 5.2.2 Port Current Kelvin Sensing
      3. 5.2.3 Ground Plane Spacing and Isolation (GND, GND1, and EARTH nets)
    3. 5.3 PCB Drawings
  7. 6Bill of Materials

4.3.1 Basic CCS and Terminal Setup

Use the following steps for basic CCS and terminal setup:

  1. Launch the CCS program on the PC: Start → Texas Instruments → Code Composer Studio 7.2.0 → Code Composer Studio 7.2.0.
  2. OK the workspace location and CCS starts.
  3. Import the project: Project→ Import CCS Projects (make sure you are in CCS Edit mode).
  4. Navigate to the project location, then click the Finish button.
  5. Build the project by clicking the hammer symbol. Semi-Auto or Auto mode can be switched selected using the drop-down arrow to the right of the hammer symbol.
  6. Launch the debug session from CCS to activate the current project: Run, Debug (or F11).
  7. Run the active project: Run, Resume (or play button, F8).
  8. Determine the PC COM port connected to the LaunchPad by going into the Device Manager Ports (COM and LPT) section. Launch the terminal program.
  9. Once the terminal program is properly connected to the LaunchPad running the PoE firmware, then text similar to the following image appears.
    GUID-2FB3ABB1-DD2C-4E07-BB56-6E02147AFF9A-low.pngFigure 4-6 Semi-Auto UART Transmission Startup
  10. The TPS23882B1 is now waiting for a PD load to be installed. As ports are installed, the system automatically detects, classifies, and powers up the port as shown in Figure 4-7. Port status is updated on the screen approximately every 10 seconds.
    GUID-C63A4D85-8794-4252-911E-06B6901E4283-low.pngFigure 4-7 Semi-Auto UART Transmission Status