TIDUEO1B April   2021  – June 2021

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 2System Description
    1. 2.1 Key System Specifications
  8. 3System Overview
    1. 3.1 Block Diagram
    2. 3.2 Design Considerations
      1. 3.2.1 Basic Operation
      2. 3.2.2 PCMC PSFB using C2000
    3. 3.3 System Design Theory
      1. 3.3.1 Peak Current Mode Control (PCMC) Implementation
      2. 3.3.2 Zero Voltage Switching (ZVS) or Low Voltage Switching (LVS)
      3. 3.3.3 Synchronous Rectification
      4. 3.3.4 Slope Compensation
    4. 3.4 Highlighted Products
      1. 3.4.1 C2000™ MCU F28004x
  9. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Required Hardware and Software
      1. 4.1.1 Hardware
      2. 4.1.2 Software
        1. 4.1.2.1 Software Control Flow
        2. 4.1.2.2 Incremental Builds
        3. 4.1.2.3 Procedure for running the incremental builds - PCMC
          1. 4.1.2.3.1 Build 1: Peak Current Loop Check with Open Voltage Loop
            1. 4.1.2.3.1.1 Objective
            2. 4.1.2.3.1.2 Overview
            3. 4.1.2.3.1.3 Procedure
              1. 4.1.2.3.1.3.1 Start CCS and Open a Project
              2. 4.1.2.3.1.3.2 Build and Load the Project
              3. 4.1.2.3.1.3.3 Debug Environment Windows
              4. 4.1.2.3.1.3.4 Using Real-Time Emulation
              5. 4.1.2.3.1.3.5 Run the Code
          2. 4.1.2.3.2 Build 2: Closed current and voltage loop (Full PSFB)
            1. 4.1.2.3.2.1 Objective
            2. 4.1.2.3.2.2 Overview
            3. 4.1.2.3.2.3 Procedure
              1. 4.1.2.3.2.3.1 Build and Load Project
              2. 4.1.2.3.2.3.2 Debug Environment Windows
              3. 4.1.2.3.2.3.3 Run the Code
      3. 4.1.3 Test results
  10. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    2. 5.2 Software
    3. 5.3 Documentation Support
  11. 6Terminology
  12. 7About the Author
  13. 8Revision History
4.1.2.3.1.3.4 Using Real-Time Emulation

Real-time emulation is a special emulation feature that allows the windows within Code Composer Studio to be updated at up to a 10 Hz rate while the MCU is running. This not only allows graphs and watch views to update, but also allows the user to change values in watch or memory windows, and have those changes affect the MCU behavior. This is very useful when tuning control law parameters on-the-fly, for example.

  1. Enable real-time mode by hovering your mouse on the buttons on the horizontal toolbar and clicking GUID-6D985827-6060-4870-AFA0-12CC961FDBFE-low.gif button
  2. A message box may appear. If so, select YES to enable debug events. This will set bit 1 (DGBM bit) of status register 1 (ST1) to a “0”. The DGBM is the debug enable mask bit. When the DGBM bit is set to “0”, memory and register values can be passed to the host processor for updating the debugger windows.
  3. Now click GUID-FE1540B3-52AD-48D5-B1FF-03743DBC5906-low.gifbutton on the same horizontal toolbar.
  4. When a large number of windows are open, as bandwidth over the emulation link is limited, updating too many windows and variables in continuous refresh can cause the refresh frequency to bog down. Right click on the GUID-52FA85B8-B369-4BA9-9508-F971D9CD5780-low.gif button in the watch view and select “Customize Continuous Refresh Interval..”. You can slow down the refresh rate for the watch view variables by changing the Continuous refresh interval (milliseconds) value. A rate of 4000 ms is usually enough for these exercises.
  5. Click on Continuous Refresh button GUID-2C1D09A0-85AC-46D1-984D-DF8CE3CC9B15-low.gif for the watch view.