SWRA656C May   2020  – October 2022 AWR6843 , AWR6843AOP , IWR1642 , IWR1843 , IWR6443 , IWR6843 , IWR6843AOP

 

  1.   Migrating to xWR68xx and xWR18xx Millimeter Wave Sensors
  2.   Trademarks
  3. 1Introduction
  4. 2xWR1843 Hardware/Software Migration
    1. 2.1 Migrating From xWR1642 to xWR1843
      1. 2.1.1 Device Comparison
      2. 2.1.2 Hardware Migration Notes
        1. 2.1.2.1 Antenna Addition
      3. 2.1.3 Hardware Design Checklist
      4. 2.1.4 Software Migration Notes
  5. 3xWR6843AoP ES2.0 Migration
    1. 3.1 Hardware Changes From xWR6843AoP ES1.0 to xWR6843AoP ES2.0
    2. 3.2 Software Migration From xWR6843AoP ES1.0 to xWR6843AoP ES2.0
      1. 3.2.1 xWR6843AoP ES2.0 - Platform Software Updates
      2. 3.2.2 xWR6843AoP ES2.0 - AoA Software Updates
  6. 4Helpful Resources
  7. 5Code Snapshots
    1. 5.1  SDK 3.3 API Change for MMWave_open
    2. 5.2  SDK 3.3 API Change for ADCBuf_open
    3. 5.3  SDK 3.3 API Change for CANFD_init
    4. 5.4  SDK 3.3 68xx Secondary Bootloader Update
    5. 5.5  SDK 3.3 16xx vs 68xx: Calibration Frequency Update
    6. 5.6  SDK 3.3 16xx vs 68xx: SoC Definition Updates
    7. 5.7  SDK 3.3 16xx vs 18xx: SoC Definition Updates
    8. 5.8  SDK 3.4 xWR68xx Calibration Frequency Update
    9. 5.9  SDK 3.4 Object Detect HWA DPC Range FFT Scaling
    10. 5.10 SDK 3.4 Object Detect Range HWA DPC Radar Cube Format
    11. 5.11 xWR6843AoP ES1.0 Antenna Geometry
    12. 5.12 xWR6843AoP ES2.0 Antenna Geometry
    13. 5.13 xWR6843AoP ES2.0 Antenna Geometry Code Update
    14. 5.14 Antenna Geometry Structure Usage in mmw demo
    15. 5.15 xWR6843AoP ES2.0 RX Channel Phase Compensation
  8. 6References
  9. 7Revision History

3.1 Hardware Changes From xWR6843AoP ES1.0 to xWR6843AoP ES2.0

The changes described in this section are relevant when migrating xWR6843AoP ES1.0 hardware to xWR6843AoP ES2.0. Figure 3-1 shows the device symbolization change from ES1.0 to ES2.0 on device part marking.

Left side device marking shows ES1.0 silicon and right side device marking shows ES2.0 silicon. For more details on the device marking, see the xWR6843 Device Errata, Silicon Revisions 1. and 2.0.

GUID-E0200180-EDAF-4B74-AB5A-A98407E38723-low.pngFigure 3-1 Silicon Device Marking Difference Between xWR6843AoP ES1.0 and ES2.0
Table 3-1 xWR6843AoP ES1.0 to xWR6843AoP ES2.0 Hardware Changes
NoSummaryxWR6843AoP ES1.0xWR6843AoP ES2.0
1QSPI interface speed has been improved. This enables faster boot loading, note that supported flashes are listed in the Flash Variants Supported by the mmWave Sensor.Max 40 MHzMax 80 MHz
2Boot loader enhancement has been made. This allows faster boot and stability across devicesBoot loader code used to do the APLL calibrationClosed loop APLL calibration will be done by BSS
3Tx beam scanning is introducedNo supportSupported
4Memory compression (Depending upon the compression ratio of the RADAR data cube larger memory would be available for code and remaining data)No supportSupported
5Calibration is supported (This improves the performance and stability of the device across temperature)No CalibrationCalibration supported
6Clock gating at power-up and IP clock gating based on use-case, this should improve the power savingNo clock gatingClock gated on unused peripherals. Device low level drivers un-gates the clock depending upon the peripheral used
7RF Improvements –RX NF (Improved range and accuracy)BaselineImproved (Please refer to the data sheet for exact number)
8RF Improvements –CLK PN (Improved accuracy)BaselineImproved (Please refer to the data sheet for exact number)
9Package changeBaselineImproved package (Please refer to the data sheet for detailed package information)
10Changes in Antenna virtual ArrayBaselineImprovement in package routing caused changes in the antenna elements, hence there is change in virtual antenna array between ES1 and ES2.0. See Table 3-2