TIDUED6B august   2018  – april 2023

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   Design Images
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 mmWave Sensor
        1. 2.2.1.1 mmWave Sensor People Counting
        2. 2.2.1.2 IWR6843 UART Communication
          1. 2.2.1.2.1 IWR6843 Frame Output
          2. 2.2.1.2.2 IWR6843 Frame Header
          3. 2.2.1.2.3 TLV Elements
      2. 2.2.2 Power Supply Design
      3. 2.2.3 Wireless Network Design
      4. 2.2.4 CC1352 Software Design
        1. 2.2.4.1 Collector Node
        2. 2.2.4.2 Sensor Node
        3. 2.2.4.3 mmWave Sensor Configuration Command List Modification
    3. 2.3 Highlighted Products
      1. 2.3.1 IWR6843: Single-Chip 60- to 64-GHz mmWave Sensor
      2. 2.3.2 CC1352R: SimpleLink High-Performance Dual-Band Wireless MCU
      3. 2.3.3 IWR6843ISK and MMWAVEICBOOST: mmWave EVMs
      4. 2.3.4 LAUNCHXL-CC1352R1: SimpleLink™ Multi-Band CC1352R Wireless MCU LaunchPad™ Development Kit
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware Setup
      2. 3.1.2 Software Setup
        1. 3.1.2.1 Loading the CC1352 Firmware
        2. 3.1.2.2 Loading the IWR6843 Firmware
        3. 3.1.2.3 Starting the Firmware
        4. 3.1.2.4 Building the Firmware
        5. 3.1.2.5 Viewing Collector Data Output
        6. 3.1.2.6 Modifying the mmWave Configuration
    2. 3.2 Testing and Results
      1. 3.2.1 Test Setup
        1. 3.2.1.1 People Counting Setup
        2. 3.2.1.2 Power Consumption
        3. 3.2.1.3 Wireless RF Range
      2. 3.2.2 Test Results
        1. 3.2.2.1 People Counting Test Results
        2. 3.2.2.2 Power Characterization
        3. 3.2.2.3 Wireless RF Range Results
  9. 4Design Files
    1. 4.1 Schematics
    2. 4.2 Bill of Materials
    3. 4.3 PCB Layout Recommendations
    4. 4.4 Altium Project
    5. 4.5 Gerber Files
    6. 4.6 Assembly Drawings
  10. 5Software Files
  11. 6Related Documentation
  12. 7Trademarks
  13. 8About the Author
  14. 9Revision History

2.2.4.3 mmWave Sensor Configuration Command List Modification

The short range configuration is used by default in this design. Also lowpower and pointCloudEn commands are changed compared to the default command list:

  1. Changed "lowpower 0 1\r" to "lowpower 0 0\r" which disables the low power mode since ES1.0 does not use low power mode
  2. Added additional command "pointCloudEn 0\r" to disable the point cloud to reduce the burden of the CC1352 device by providing a smaller frame for it to read
const char *CommandList[] = {"dfeDataOutputMode 1\r",
                    "channelCfg 15 5 0\r",
                    "adcCfg 2 1\r",
                    "adcbufCfg 0 1 1 1\r",
                    "profileCfg 0 60.6 30 10 62 0 0 53 1 128 2500 0 0 30\r",
                    "chirpCfg 0 0 0 0 0 0 0 1\r",
                    "chirpCfg 1 1 0 0 0 0 0 4\r",
                    "frameCfg 0 1 128 0 50 1 0\r",
                    "lowPower 0 1\r",
                    "guiMonitor 1 1 0 0\r",
                    "cfarCfg 6 4 4 4 4 16 16 4 4 50 62 0\r",
                    "doaCfg 600 1875 30 1 1 0\r",
                    "SceneryParam -6 6 0.5 6\r",
                    "GatingParam 4 3 2 0\r",
                    "StateParam 10 5 100 100 5\r",
                    "AllocationParam 250 250 0.25 10 1 2\r",
                    "AccelerationParam 1 1 1\r",
                    "PointCloudEn 0\r",
                    "trackingCfg 1 2 250 20 52 82 50 90\r",
                    "sensorStart\r"
};

For more detailed information on how to configure for long range mode, see People Tracking and Counting Reference Design Using mmWave Radar Sensor.