SLUUDN8 July   2026 TMS320F28P550SJ , TMS320F28P650DK

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Library Notice
  6. 3Library Architecture
    1. 3.1 Background Processing
    2. 3.2 Foreground Processing
    3. 3.3 Data Transfer Mechanism
  7. 4Metrology Calculations
  8. 5Configuration and Data Structures
  9. 6Calibration Module
  10. 7User Specific Configurations
    1. 7.1 Debug Mode
      1. 7.1.1 The Function of Debug Mode
      2. 7.1.2 How to Configure DEBUG Mode Parameters
    2. 7.2 ADC Mode
      1. 7.2.1 Using the On-Chip ADC
      2. 7.2.2 Two Point Calibration
        1. 7.2.2.1 Step 1 – Offset Calibration (Zero-Input Point)
        2. 7.2.2.2 Step 2 – Gain Calibration (Full-Scale Point)
      3. 7.2.3 Using an External ADC
    3. 7.3 Switching Between Modes
    4. 7.4 THD Algorithm Selection
      1. 7.4.1 Method 1 – Based on PLL (Default When the HARMONICS_SUPPORT Macro is Not Defined)
      2. 7.4.2 Method 2 – Goertzel DFT (When the HARMONICS_SUPPORT and USE_GOERTZEL_THD Macros are Both Defined)
      3. 7.4.3 Method 3 – 2048-Point Real FFT (When the HARMONICS_SUPPORT Macro is Defined But the USE_GOERTZEL_THD Macro is Not)
    5. 7.5 Topology Selection
    6. 7.6 Enable Features
    7. 7.7 System Parameters
    8. 7.8 Scaling Factors Per Phase
  11. 8Running the Example
    1. 8.1 Accessing the Parameters Per Phase
    2. 8.2 Accessing the Total System Measurements
    3. 8.3 Accessing the Phase Status Flags

8 Running the Example

First, create and run the project in the Code Composer Studio™ (CCS) software:

  1. Use the CPU1_FLASH build configuration to build the energy_metrology_f28p55 or energy_metrology_f28p65 project in the CCS.
  2. Right-select the project after the project is built and select the DEBUG button.
  3. Start the execution by using the RUN button from the CCS debug pop-up window.

Next, add a new expression in CCS with the target halted at a breakpoint or running in real-time mode:

  • Open the Expressions window – Window ￫ Show View ￫ Expressions
  • Select the green plus icon in the Expressions pane and select Add New Expression.
TMS320F28P650DK, TMS320F28P550SJ, TMDSCNCD28P65X, TMDSCNCD28P55X, LAUNCHXL-F28P65X, LAUNCHXL-F28P55X Expressions Window in Code Composer Studio (CCS) Software Figure 8-1 Expressions Window in Code Composer Studio (CCS) Software