TIDUF51 November   2023

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 mmWave Sensor Application
      2. 2.2.2 IWR6432 UART Communication
      3. 2.2.3 LAUNCHXLCC1352R1 Communication
      4. 2.2.4 Sensors Application
      5. 2.2.5 Power Supply Design
      6. 2.2.6 IWRL6432 Power Supply Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 IWRL6432
      2. 2.3.2 CC1352R
      3. 2.3.3 BQ25616
      4. 2.3.4 TPS62850
      5. 2.3.5 HDC3020
      6. 2.3.6 OPT3005
      7. 2.3.7 DRV5032
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Getting Started Hardware
        1. 3.1.1.1 IWRL6432FSPEVM Initialization: IWRL6432 Programming
        2. 3.1.1.2 Base Board Initialization: CC1352R Programming
    2. 3.2 Software Requirements
    3. 3.3 Test Setup
      1. 3.3.1 Demonstration Setup
    4. 3.4 Test Results
      1. 3.4.1 Radar Detect Distance Measurement
      2. 3.4.2 People Counting Test Results
      3. 3.4.3 Wireless Range Test Results
      4. 3.4.4 Power Consumption Test Results
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
      3. 4.1.3 PCB Layout Recommendations
        1. 4.1.3.1 Layout Prints
      4. 4.1.4 Altium Project
      5. 4.1.5 Gerber Files
      6. 4.1.6 Assembly Drawings
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author

2.2.2 IWR6432 UART Communication

The CC1352R communicates with and configures the IWRL6432 device via UART commands with a baud rate of 1250000.

sensorStop 0
channelCfg 7 3 0
chirpComnCfg 16 0 0 128 4 28 0
chirpTimingCfg 6 32 0 40 60.5
frameCfg 2 0 200 64 100 0
antGeometryCfg 0 0 1 1 0 2 0 1 1 2 0 3 2.418 2.418
guiMonitor 2 0 0 0 0 1 0 0 1 0 0
sigProcChainCfg 32 2 3 2 8 8 1 0.3
cfarCfg 2 8 4 3 0 11.0 0 0.5 0 1 1 1
aoaFovCfg -70 70 -40 40
rangeSelCfg 0.1 10.0
clutterRemoval 1
compRangeBiasAndRxChanPhase 0.0 1.00000 0.00000 -1.00000 0.00000 1.00000 0.00000 -1.00000 0.00000 1.00000 0.00000 -1.00000 0.00000
adcDataSource 0 adc_data_0001_CtestAdc6Ant.bin

After the configuration is completed, the IWR6432 starts sending out radar result data continuously back to the CC1352R through this UART port. Then, the CC1352R sends the data directly over the air to a PC or cell phone via BLE or sub-1 GHz.