SWRU630A December   2024  – November 2025 AWRL6844 , IWRL6844

 

  1.   1
  2.   Description
  3.   Getting Started
  4.   Features
  5. 1xWRL6844EVM Revision history
  6. 2Evaluation Module Overview
    1. 2.1 Introduction
    2. 2.2 Key Features
    3. 2.3 Kit Contents
    4. 2.4 Specification
    5. 2.5 Device Information
  7. 3Hardware
    1. 3.1  xWRL6844EVM Antenna
      1. 3.1.1 PCB Material
        1. 3.1.1.1 Transmitter and Receiver Virtual Array
        2. 3.1.1.2 Phase summary of xWRL6844 Device + Antenna combined
    2. 3.2  EVM Mux Block Diagram
    3. 3.3  Switch Settings
    4. 3.4  Push Button Switches
    5. 3.5  LEDs
    6. 3.6  DC Input Jack
    7. 3.7  USB Connector
    8. 3.8  DCA1000 HD Connector
    9. 3.9  BoosterPack Connector for LaunchPad Connectivity
    10. 3.10 CAN-FD_B Connector
    11. 3.11 CAN-FD_A Connector
    12. 3.12 LIN-PHY Connector
    13. 3.13 I2C Connections
      1. 3.13.1 EEPROM
    14. 3.14 XDS110 Interface
    15. 3.15 FTDI Interface
    16. 3.16 DCA1000EVM Mode
    17. 3.17 PCB Storage and Handling Recommendations:
      1. 3.17.1 PCB Storage and Handling Recommendations
      2. 3.17.2 Higher Power Demanding Applications
  8. 4Software, Development Tools, and Example Code
    1. 4.1 Low Power mode implementation
  9. 5Hardware Design Files
    1. 5.1 Schematics, PCB Layout and Bill of Materials (BOM)
    2. 5.2 EVM Design Database
    3. 5.3 Hardware Design Checklist
  10. 6Additional Information
    1. 6.1 Trademarks
  11. 7References
    1. 7.1 TI E2E Community
  12. 8Revision History

1 xWRL6844EVM Revision history

Table 1-1 xWRL6844EVM revision history
Revision Changes Notes
Rev A1 B0 version of PMIC used with Watch Dog enable
Rev A Assy Rev A12 R87 DNP B0 version of PMIC used with Watch Dog enable. R87 was removed to increase PMIC shutdown window time
Rev A Assy Rev A23 PMIC silicon change B1 version of PMIC used with Watch Dog disable
  1. PMIC WatchDog is enabled in this EVM version. Hence, PMIC asserts a nRESET signal to Radar device for every 13minutes from EVM power-up if WatchDog is not disabled/serviced in a timely manner
  2. PMIC WatchDog is enabled in this EVM version and R87 is made DNP. This ensures no connection between nRESET signal going to radar device. Radar device will not see a reset for every 13mins, but PMIC shutdowns for every 3.25hrs from the powerup
  3. PMIC WatchDog is disabled in this EVM version and R87 is made DNP. No nRESET signal is asserted to Radar device. B1 version of PMIC is used which enables user to exercise low power mode feature through mode pin or I2C

Note:
  1. If user wants to disable the PMIC WD, please refer to the "Pmic_wdgDisable" caller function within "mmwave_l_sdk_06_xx_xx_xx\examples\mmw_demo\mmwave_demo\source\mmwave_demo.c" file.
  2. PMIC Low power mode can be only exercised using B1 silicon. If user wants to exercise low power mode feature, refer to the Section 4.1.