Texas Instruments AWR2944EVM User Manual

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AWR2944EVM User's Guide

User's Guide

Literature Number: SPRUJ22

NOVEMBER 2021

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Page 1 AWR2944EVM User’s Guide User’s Guide Literature Number: SPRUJ22 NOVEMBER 2021...
Page 3: Table Of Contents
Recommendations............................12 2.3 Power Connections................................Connectors..................................13 Antenna....................................22 2.6 On-board Sensors................................25 2.7 PC Connection................................. 2.8 Connecting the AWR2944EVM to the DCA1000 EVM.....................27 2.9 Jumpers, Switches, and LEDs............................3 Design Files and Software Tools............................35 3.1 Design Files..................................3.2 Software, Development Tools, and Example Code......................35...
Page 5 ® are registered trademarks of Arm Limited. Windows ® is a registered trademark of Microsoft. All trademarks are the property of their respective owners. SPRUJ22 – NOVEMBER 2021 AWR2944EVM User’s Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 7: Getting Started
Getting Started Chapter 1 Getting Started 1.1 Introduction The AWR2944EVM is an easy-to-use evaluation board for the AWR294x mmWave sensing device, with direct connectivity to the DCA1000 EVM.This EVM kit contains everything needed to start developing software for the on-chip C66x DSP, ARM ®...
Page 9: Hardware
Hardware Chapter 2 Hardware Note During operation, a minimum separation distance of 5 centimeters should be maintained between the user and the EVM. SPRUJ22 – NOVEMBER 2021 AWR2944EVM User’s Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 12: Block Diagram
For more information on proper handling, refer to SSYA010A. 2.3 Power Connections The AWR2944EVM is powered by the 12-V power jack (>2.5-A current capability). When power is provided the AR_NRST, VBAT_INT, and 5V0 LEDs should glow, indicating that the board is powered up.
Page 13: Connectors
CSI_RX lanes which allow for playback or feeding external data and bypassing the RF front end, which enables testing and algorithm development on a known dataset. To use this interface, the JTAG lines from the AWR2944EVM needs to be muxed to MIPI 60-pin connector. Refer Section 2.7.1 for more details.
Page 14 Table 2-1. J19 Pin Assignment Pin Number Description Pin Number Description MIPI_VREF_DEBUG MIPI_TMS MIPI_TCK MIPI_TDO MIPI_TDI MIPI_NRST MIPI_RTCK MIPI_TRSTPD MIPI_JTAG_NRST MIPI_VREF_DEBUG TRACE_CLK MIPI_DBG_DETECT TRACE_CTL TRACE_DATA0 TRACE_DATA1 TRACE_DATA2 TRACE_DATA3 AWR2944EVM User’s Guide SPRUJ22 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 15 2.4.2 Debug Connector-60 pin (J7) This connector enables interfacing of LVDS signals to the DCA1000 EVM for data capturing purposes. Also it has SPI, I2C, JTAG, GPADC, WRMRST, NRROUT, EPWM, and other control signals from AWR2944EVM for debug purpose. The SPI interface is multiplexed to the Debug Connector. For more details refer to Section 2.7.1.
Page 16 Table 2-2. J7 Pin Assignment Pin Number Description Pin Number Description XREF_CLK0 MSS_EPWMA0 DBG_SPI_CS0 DBG_SPI_CLK MSS_SPIA_HOSTIRQ DBG_SPI_MOSI DBG_SPI_MISO 3.3V PULL_UP XREF_CLK1 EMU_TCK MCU_CLKOUT EMU_TDI GPADC1 EMU_TMS AWR2944EVM User’s Guide SPRUJ22 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 17 Figure 2-7. CAN_A Connector Table 2-3 provides the pin assignment details for the CAN_A connector. Table 2-3. J3 Pin Assignment Pin Number Description CAN_L CAN_H SPRUJ22 – NOVEMBER 2021 AWR2944EVM User’s Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 18 CAN_H 2.4.5 Ethernet Ports (J4 and J9) The AWR2944EVM supports two RGMII Ethernet ports to provide the connection to the network. The J4 connector provides access over a MATEnet port (9-2304372-9 connector) via a DP83TC812R-Q1 PHY. The J9 port provides access over an RJ45 port via a DP83867ERGZR PHY. By default, the RGMII interfaces is connected to the J9 port only.
Page 19 Table 2-6 provides the connector pin details. Table 2-6. J4 Pin Assignment Pin Number Description Pin Number Description TRD_P TRD_M Figure 2-10. MATEnet Connector SPRUJ22 – NOVEMBER 2021 AWR2944EVM User’s Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 20 USB cables, power cycle the EVM, and plug in the USB cables to resolve the issue. The AWR2944EVM has two standard micro USB connectors. Micro USB Connector J10 provides access to the AWR2944 UART, SPI, I2C, RS232, and SOP interfaces through the FTDI chip.
Page 21 The OOB demo requires only J8 to be connected to the PC. J10 is not used for the OOB demo. Table 2-8. J8 Pin Assignment Pin Number Description Pin Number Description XDSET_VBUS XDSET_D_N XDSET_D_P XDSET_ID Figure 2-12. XDS USB Port SPRUJ22 – NOVEMBER 2021 AWR2944EVM User’s Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 22: Antenna
Schematic, BOM, and assembly files. 2.5 Antenna The AWR2944EVM includes onboard etched antennas for the four receivers and four transmitters, which enables tracking multiple objects with their distance and angle information. This antenna design enables...
Page 23 Hardware Figure 2-14. AWR2944EVM Antenna Design The antenna placement shown in Figure 2-14 results in the virtual antenna array shown in Figure 2-15. Figure 2-15. Virtual Antenna Array SPRUJ22 – NOVEMBER 2021 AWR2944EVM User’s Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 24 2-17). Similarly, the horizontal 6dB beamwidth is approximately ±45 degrees (see Figure 2-16) and the elevation 6dB-beamwidth is approximately ±5 degrees (see Figure 2-17). Figure 2-16. Azimuth Radiation Pattern AWR2944EVM User’s Guide SPRUJ22 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 25: On-Board Sensors
Figure 2-17. Elevation Radiation Pattern 2.6 On-board Sensors The AWR2944EVM provides access to an on-board temperature sensor (TMP112AIDRLR) and four on-board current sensors (INA226AIDGSR). These sensors can be controlled by the radar via I2C. For details about the I2C addresses of these sensors, refer to Section 2.9.3.
Page 26: Pc Connection
Ports (COM & LPT). Figure 2-18. XDS110 COM Ports XDS110 debug probe and data port are detected under Texas Instruments Debug Probes. Figure 2-19. TI Debug Probes If the PC is unable to recognize the above COM ports, install the latest EMUpack.
Page 27: Connecting The Awr2944Evm To The Dca1000 Evm
COM ports are installed, the device manager recognizes these devices and indicates the COM port numbers, as shown in Figure 2-21. Figure 2-21. Installed FTDI Drivers 2.8 Connecting the AWR2944EVM to the DCA1000 EVM The AWR2944EVM can be connected to the DCA1000 EVM platform to allow for LVDS data streaming. Figure 2-22 shows the AWR2944EVM interfaced to the DCA1000 EVM.
Page 28 Hardware www.ti.com Figure 2-22. AWR2944EVM and DCA1000 EVM When using the AWR2944EVM with the DCA1000 EVM, the following settings should be used. 1. Set the AWR2944EVM to SOP2 mode. Figure 2-23. SOP2 Mode 2. Set the DCA1000 EVM switches to the following configuration.
Page 29: Jumpers, Switches, And Leds
5. A micro USB cable should be connected to the FTDI port on the AWR2944EVM (J10) 6. The Samtec ribbon cable should be connected to J7 on the AWR2944EVM and J3 on the DCA1000 EVM 7. An RJ45 cable should be connected to J6 on the DCA1000 EVM 2.9 Jumpers, Switches, and LEDs...
Page 30 2.9.2 Sense On Power (SOP) Jumpers (J17, J18, J20) The AWR2944EVM can be set to operate in different modes based on the state of the SOP [2:0] lines. These lines are sensed ONLY during boot up of the AWR2944 device. The state of the device is described in Table 2-12.
Page 31 1.2-V, 1.8-V, 3.3-V, 1V0_RF1, and 1V0_RF2 AWR2944 supply rails and EEPROM for storing board ID. These are connected to the AWR2944EVM through I2C bus. Table 2-14 shows the list of I2C devices available in AWR2944EVM board and its address. Table 2-14. I2C Device Addresses Sensor Type...
Page 32 12-V supply indication This LED indicates the presence of 12-V supply input Green 5-V Supply This LED indicates the presence of 5-V supply output AWR2944EVM User’s Guide SPRUJ22 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 33 Open drain fail safe warm reset signal Green GPIO_2 Glows when the GPIO_2 is logic-1 Yellow FTDI_SUSPEND_N Glows when FTDI is in suspend state SPRUJ22 – NOVEMBER 2021 AWR2944EVM User’s Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
Page 35: Design Files And Software Tools
Chapter 3 Design Files and Software Tools 3.1 Design Files To view the schematics, assembly drawings, and BOM, see AWR2944EVM Schematic, Assembly Files, and BOM. To view the design database and layout details, see AWR2944EVM Database and Layout Files. 3.2 Software, Development Tools, and Example Code To enable quick development of end applications on the on-chip C66x DSP, ARM®...
Page 36 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 © 2021, Texas Instruments Incorporated...

Texas Instruments AWR2944EVM User Manual

1 Getting Started

2 Hardware

3 Design Files and Software Tools

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