SPRAC94D September   2018  – March 2022 AFE030 , AFE031 , TMS320F28075 , TMS320F28075-Q1 , TMS320F28076 , TMS320F28374D , TMS320F28374S , TMS320F28375D , TMS320F28375S , TMS320F28375S-Q1 , TMS320F28376D , TMS320F28376S , TMS320F28377D , TMS320F28377D-EP , TMS320F28377D-Q1 , TMS320F28377S , TMS320F28377S-Q1 , TMS320F28379D , TMS320F28379D-Q1 , TMS320F28379S

 

  1.   Trademarks
  2. 1 FSK Overview
  3. 2 Hardware Overview
    1. 2.1 Block Diagram
    2. 2.2 Hardware Setup
  4. 3 Interfacing With the AFE03x
    1. 3.1 Configuring the AFE031
  5. 4 Transmit Path
    1. 4.1 FSK Example Specifications
    2. 4.2 PWM Mode
      1. 4.2.1 Software Implementation
      2. 4.2.2 Testing Results
      3. 4.2.3 HRPWM vs. EPWM
    3. 4.3 DAC Mode
      1. 4.3.1 Software Implementation
      2. 4.3.2 Testing Results
      3. 4.3.3 OFDM Ability
    4. 4.4 Porting TX to LAUNCHXL-F280049C
      1. 4.4.1 PWM Mode Specific Porting
      2. 4.4.2 DAC Mode Specific Porting
  6. 5 Receive Path
    1. 5.1 Receive Path Overview
    2. 5.2 Receiver Software Implementation
      1. 5.2.1 Initial Setup and Parameters
      2. 5.2.2 Interrupt Service Routines
      3. 5.2.3 Run Time Operation
      4. 5.2.4 Testing Results
      5. 5.2.5 System Utilization
      6. 5.2.6 Device Dependency and Porting
    3. 5.3 Tuning and Calibration
      1. 5.3.1 Setting the AFE03X's PGAs
      2. 5.3.2 Automatic Gain Control (AGC)
      3. 5.3.3 Setting the Bit Detection Threshold
      4. 5.3.4 FSK Correlation Detector Library
    4. 5.4 Porting RX to LAUNCHXL-F280049C
  7. 6 Interfacing With a Power Line
    1. 6.1 Line Coupling
    2. 6.2 Coupling to an AC Line
      1. 6.2.1 Low Voltage Capacitor
      2. 6.2.2 The Ratio of the Transformer
      3. 6.2.3 HV Capacitor
      4. 6.2.4 HV Side Inductor
    3. 6.3 Coupling to DC Line
    4. 6.4 Protection Circuit
      1. 6.4.1 Metal Oxide Varistors
      2. 6.4.2 Transient Voltage Suppressors
      3. 6.4.3 Current Steering Diodes
    5. 6.5 Determining PA Power Supply Requirements
  8. 7 Summary
  9. 8 References
  10. 9 Schematics
    1. 9.1 Schematics (PWM Mode)
    2. 9.2 Schematics (DAC Mode)
  11. 10Revision History

5.4 Porting RX to LAUNCHXL-F280049C

Below are the steps that need to be taken to port the boostxl_afe031_f28379d_rx from the LAUNCHXL-F28379D to the LAUNCHXL-F280049C after importing the project into Code Composer Studio.

  1. Perform steps 1 through 7 in Section 4.4.
  2. Make the following changes to the ConfigureADC(void) function within boost_afe031_f28379d_rx_main.c.
    1. Remove the line of code below: 
      AdcSetMode(ADC_ADCA, ADC_RESOLUTION_12BIT, ADC_SIGNALMODE_SINGLE); // 12 bit res
    2. Add the line of code below before the EALLOW; 
      //
// Setup VREF as internal
//
SetVREF(ADC_ADCA, ADC_INTERNAL, ADC_VREF3P3);
  3. Setup the ADC for ePWM triggered conversions on channel 9 instead of 1 within boost_afe031_f28379d_rx_main.c.
    1. Replace the SetupADCEpwm() function call with the line of code below: 
      SetupADCEpwm(9);
  4. Configure the CPU timer for a 100 MHz clock instead of 200 MHz.
    1. Replace the ConfigCpuTimer() function call with the line of code below: 
      ConfigCpuTimer(&CpuTimer2, 100, RX_MESSAGE_TIMEOUT);
  5. Allocate Global Shared RAM within the linker command file for fsk_corr_lib_data.
    1. See the default 2837x_afe031 linker command files for how to accomplish this for both RAM and FLASH configurations.

The instructions for porting the example program to other devices and LaunchPads would be similar to those above.