Texas Instruments AWRL6844EVM User Manual
Texas Instruments AWRL6844EVM User Manual

Texas Instruments AWRL6844EVM User Manual

Evaluation module

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EVM User's Guide: AWRL6844EVM IWRL6844EVM
AWRL6844/IWRL6844 Evaluation module
Description
The xWRL6844EVM from Texas Instruments is an
easy-to-use evaluation module for the xWRL6844
mmWave radar sensor. The xWRL6844EVM supports
both standalone operation as well as direct
connectivity to the DCA1000EVM for raw ADC
capture and signal processing development. This
EVM contains everything required to start developing
software for on-chip DSP, Hardware accelerator and
low power ARM® Cortex® - R5F controller. The
EVM also includes on-board buttons, LEDs for quick
integration of a simple user interface in addition to
onboard emulation for programming and debugging.
Getting Started
For getting started guide and running out of box
demo, please refer to
SWRU636
SWRU630 – DECEMBER 2024
Submit Document Feedback
Features
57GHz to 64GHz mmWave radar sensor
On-Chip C66x DSP, ARM CORTEX-R5F controller
and Hardware Accelerator (HWA 1.2)
Onboard four-transmit and four-receive antennas
(4TX/4RX) with High RF performance RO3003
PCB substrate
TPS650365x based power management topology
Direct interface with DCA1000 for debug and Raw
ADC data capture.
Figure 1-1. xWRL6844EVM
Copyright © 2024 Texas Instruments Incorporated
AWRL6844/IWRL6844 Evaluation module
Description
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Summary of Contents for Texas Instruments AWRL6844EVM

  • Page 1 Description EVM User's Guide: AWRL6844EVM IWRL6844EVM AWRL6844/IWRL6844 Evaluation module Description Features The xWRL6844EVM from Texas Instruments is an • 57GHz to 64GHz mmWave radar sensor easy-to-use evaluation module for the xWRL6844 • On-Chip C66x DSP, ARM CORTEX-R5F controller mmWave radar sensor. The xWRL6844EVM supports and Hardware Accelerator (HWA 1.2)
  • Page 2: Key Features

    Kit includes the following: • xWRL6844EVM Evaluation board • Micro USB cable • Quick Start Guide • Screws, spacers and nuts to allow mounting of EVM AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 3: Specification

    60-pin Samtec connector for interfacing with DCA1000. The xWRL6844EVM has a provision to mount a launch-pad booster-pack connector which can be connected to TI’s LaunchPad boards. SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 4: Device Information

    The documents in Table 1-1 provide information regarding devices from Texas Instruments used in the assembly of xWRL6844 EVM. This user's guide is available from TI web site under literature number SWRU630. Any letter appended to literature number corresponds to the current document revision that is current at the time of the writing of this document.
  • Page 5 The xWRL6844EVM includes four receivers and four transmitters with a wide field of view antenna on a High RF Performance ROGERS3003 PCB substrate. Figure 2-1. xWRL6844EVM (Top View) SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 6 Hardware www.ti.com Figure 2-2. xWRL6844EVM (Bottom View) AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 7 Hardware Figure 2-3. Salient Features of EVM (Top Side) SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 8 Hardware www.ti.com Figure 2-4. Salient Features of EVM (Bottom Side) AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 9 The dielectric material used for this PCB is ROGERS RO3003 of 5mil thickness with rolled copper for the Antenna and transmission lines while 370HR is used for the rest of the layers. SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 10 12dB drop (6dB from Tx and 6dB from Rx) Note Wavelength (λ) is computed based on a frequency of 59GHz. Antenna placements were made according to this frequency. AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 11 In accordance with the EN 62311 RF exposure test, a minimum separation distance of 20 centimeters must be maintained between the user and the EVM during operation. SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 12 Switch Settings section shows different switch and mux configurations to enable connection to different peripherals. Figure 2-9. Functionality Muxing Options in the EVM AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 13: Switch Settings

    CAN PHY B: Stand by Mode Disable CAN PHY B: Stand by Mode Enable S1.2 XDS_RS232 FTDI_DCA_LP/BP_RS232 S1.3 FTDI_RS232 DCA_LP/BP_RS232 S1.4 CAN_FD_A XDS_DCA_LP/BP_FTDI_UARTA S1.5 DCA_LP/BP_FTDI_UARTA XDS_UARTA S1.6 FTDI_UARTA DCA_LP/BP_UARTA SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 14: Push Button Switches

    This Switch can be used to reset the xWRL6844 device User Switch 1 When pushed, GPIO_2 logic is pulled high User Switch 2 When pushed, GPIO_6 logic is pulled high AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 15 Glows when FTDI is in suspend state User LED: Customer programmable Glows when GPIO_6 is logic-1 nERROR LED Glows in presence of any HW error in xWRL6844 device SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 16: Dc Input Jack

    UART-B signals. This is the UART interface used to flash the binary to the onboard serial flash and for running Out-of-box (OOB) demo. Figure 2-14. XDS USB (J5) AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 17 Figure 2-16 further details on the xWRL6844 device's signals being brought out at the DCA1000 direct mating connector. Figure 2-16. DCA1000 HD Connector Pins SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 18 Figure 2-17. Booster Pack Connector Figure 2-18 shows the various signals that have been brought-out on the LP-BP connector. Figure 2-18. LP-BP connector Pins AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 19 (TCAN3403DRQ1). CAN standby input can be controlled by toggling S1.1 switch Figure 2-19. CAN-FD B Connector Figure 2-20. CAN-FD PHY Used in the EVM SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 20 CAN standby input can be controlled by toggling S4.1 switch. Figure 2-21. CAN-FD A Connector Figure 2-22. Analog Mux for the CAN PHY Switch Figure 2-23. CAN-FD PHY Used in the EVM AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 21 Figure 2-26. LIN PHY Interface To enable the external VBAT supply, resistor R32 needs to be mounted and resistor R31 needs to be removed. SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 22 COM Port, similar to that shown in Figure 2-28. Figure 2-28. Virtual COM Port If the PC is unable to recognize the above COM ports, install the latest EMUpack. AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 23: Ftdi Interface

    (C:\ti\mmwave_sdk_\tools\ftdi). This must be done for all four COM ports. When all four COM ports are installed, the device manager recognizes these devices and indicates the COM port numbers, as shown in Figure 2-30. Figure 2-30. Installed FTDI Drivers SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 24 Figure 2-31. For more details on raw ADC data capture, refer to SWRU636 Figure 2-31. AWRL6844EVM for Raw Data Capture The DCA Switch settings which needs to be followed for Raw Data capture are shown in Figure 2-32. Figure 2-32. DCA1000 switch settings...
  • Page 25 Most of the EVM can be operated with a single 5V USB cable. For higher power consumption applications where a single 5V USB supply cannot provide the power needed, use an external 5V or 12V power adapter. SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 26 For more information, please refer to MMWAVE-L-SDK user's guide and getting started guide SWRU636. AWRL6844/IWRL6844 Evaluation module SWRU630 – DECEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 27 Design Database containing Altium Project Source files can be found on SWRR198. 4.3 Hardware Design Checklist xWRL6844 Hardware Design Checklist containing schematic, layout recommendations can be found on SPRADL0. SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 28: Additional Information

    5.1 Trademarks • ARM® and Cortex® are registered trademarks of Arm Limited. • Code Composer Studio™ and LaunchPad™ are trademarks of Texas Instruments. • Windows® is a registered trademark of Microsoft. All trademarks are the property of their respective owners.
  • Page 29: Revision History

    7 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. DATE REVISION NOTES December 2024 Initial Release SWRU630 – DECEMBER 2024 AWRL6844/IWRL6844 Evaluation module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 30: Important Notice

    TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2024, Texas Instruments Incorporated...

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