Texas Instruments AWR2944EVM User manual

AWR2944EVM User’s Guide
User’s Guide
Literature Number: SPRUJ22
NOVEMBER 2021

1 Getting Started........................................................................................................................................................................7
1.1 Introduction........................................................................................................................................................................ 7
1.2 Key Features .....................................................................................................................................................................7
1.3 What’s Included..................................................................................................................................................................7
2 Hardware................................................................................................................................................................................. 9
2.1 Block Diagram..................................................................................................................................................................12
2.2 PCB Handling Recommendations....................................................................................................................................12
2.3 Power Connections.......................................................................................................................................................... 12
2.4 Connectors.......................................................................................................................................................................13
2.5 Antenna............................................................................................................................................................................22
2.6 On-board Sensors............................................................................................................................................................25
2.7 PC Connection................................................................................................................................................................. 26
2.8 Connecting the AWR2944EVM to the DCA1000 EVM.....................................................................................................27
2.9 Jumpers, Switches, and LEDs......................................................................................................................................... 29
3 Design Files and Software Tools.........................................................................................................................................35
3.1 Design Files..................................................................................................................................................................... 35
3.2 Software, Development Tools, and Example Code..........................................................................................................35
Table of Contents
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Trademarks
ARM® and Cortex® are registered trademarks of Arm Limited.
Windows® is a registered trademark of Microsoft.
All trademarks are the property of their respective owners.
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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® Cortex®-R5F controller, and hardware accelerator (HWA 2.0). Also included is
on-board emulation for programming and debugging as well as on-board buttons and LEDs for quick integration
of a simple user interface.
1.2 Key Features
• On-board antenna
• XDS110 based JTAG emulation with Serial port for onboard QSPI flash programming.
• UART to USB Debug port for terminal access using FT4232H
• 60-pin, high-density (HD) connector for external JTAG/ Emulator Interface with TRACE and CSI2 support
• 60-pin, high-density (HD) connector for debug, SPI, I2C and LVDS
• RJ45 connector to stream the captured data over the network to the host PC
• MATEnet Ethernet interface to stream the captured data over the network to an automotive host
• Dual On-board CAN-FD transceiver
• One button and LED for basic user interface
• 12V power jack to power the board
1.3 What’s Included
1.3.1 Kit Contents
• AWR2944EVM
• Micro USB cable
• Ethernet Cable
• Mounting brackets, screws, spacers and nuts, to allow placing the PCB vertical
Note
A 12V, > 2.5-A supply brick with a 2.1-mm barrel jack (center positive) is not included. TI recommends
using an external power supply that complies with applicable regional safety standards, such as UL,
CSA, VDE, CCC, PSE, and more. The length of the power cable should be < 3 m.
The following power supply has been tested to work with the AWR2944EVM: SDI65-12-U-P5.
1.3.2 mmWave Out-of-Box (OOB) Demo
TI provides sample demo codes to easily get started with the AWR2944 evaluation module (EVM) and to
experience the functionality of the AWR2944 radar sensor. For details on getting started with these demos, see
www.ti.com/tool/mmwave-sdk.
Chapter 1
Getting Started
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Note
During operation, a minimum separation distance of 5 centimeters should be maintained between the
user and the EVM.
Chapter 2
Hardware
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Figure 2-1. AWR2944EVM Front View
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Figure 2-2. AWR2944EVM Back View
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2.1 Block Diagram
Figure 2-3. AWR2944EVM Block Diagram
2.2 PCB Handling Recommendations
This EVM contains components that can potentially be damaged by electrostatic discharge. Always transport
and store the EVM in its supplied ESD bag when not in use. Handle using an antistatic wristband. Operate on an
antistatic work surface. 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.
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Figure 2-4. 12-V Power Connector
Note
After the 12-V power supply is provided to the EVM, it is recommended to press the NRST switch
(SW1) one time to ensure a reliable boot-up state.
2.4 Connectors
2.4.1 MIPI 60-Pin Connector (J19)
This connector provides the standard MIPI 60-pin interface, as shown in Figure 5, for JTAG, CSI2 and trace
capability through emulators such as the XDS560pro. Further information on the emulation and trace header can
be found in the Emulation and Trace Headers Technical Reference Manual.This connector also provides access
to the 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
to Section 2.7.1 for more details.
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Figure 2-5. 60-pin MIPI Connector
Table 2-1 provides the pin assignment details for the MIPI 60-pin connector.
Table 2-1. J19 Pin Assignment
Pin Number Description Pin Number Description
1 MIPI_VREF_DEBUG 2 MIPI_TMS
3 MIPI_TCK 4 MIPI_TDO
5 MIPI_TDI 6 MIPI_NRST
7 MIPI_RTCK 8 MIPI_TRSTPD
9 MIPI_JTAG_NRST 10 NC
11 NC 12 MIPI_VREF_DEBUG
13 TRACE_CLK 14 NC
15 MIPI_DBG_DETECT 16 GND
17 TRACE_CTL 18 NC
19 TRACE_DATA0 20 NC
21 TRACE_DATA1 22 NC
23 TRACE_DATA2 24 NC
25 TRACE_DATA3 26 NC
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Table 2-1. J19 Pin Assignment (continued)
Pin Number Description Pin Number Description
27 TRACE_DATA4 28 NC
29 TRACE_DATA5 30 NC
31 TRACE_DATA6 32 NC
33 TRACE_DATA7 34 NC
35 NC 36 NC
37 NC 38 NC
39 NC 40 NC
41 NC 42 GND
43 NC 44 CSI2_CLK_P
45 NC 46 CSI2_CLK_N
47 NC 48 GND
49 NC 50 CSI2_1_P
51 NC 52 CSI2_1_N
53 NC 54 GND
55 NC 56 CSI2_0_P
57 GND 58 CSI2_0_N
59 NC 60 GND
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.
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Figure 2-6. 60-pin Debug Connector
Table 2-2 provides the pin assignment details for the Debug 60-pin connector.
Table 2-2. J7 Pin Assignment
Pin Number Description Pin Number Description
1 NC 2 NC
3 NC 4 XREF_CLK0
5 GND 6 MSS_EPWMA0
7 DBG_SPI_CS0 8 GND
9 DBG_SPI_CLK 10 MSS_SPIA_HOSTIRQ
11 DBG_SPI_MOSI 12 DBG_SPI_MISO
13 3.3V PULL_UP 14 XREF_CLK1
15 EMU_TCK 16 MCU_CLKOUT
17 EMU_TDI 18 GND
19 GPADC1 20 EMU_TMS
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Table 2-2. J7 Pin Assignment (continued)
Pin Number Description Pin Number Description
21 GPADC2 22 EMU_TDO
23 GPADC3 24 GND
25 GPADC4 26 LVDS_TX3_FRCLK_P
27 GPADC5 28 LVDS_TX3_FRCLK_N
29 GPADC6 30 GND
31 GPADC7 32 NC
33 GPADC8 34 NC
35 GPADC9 36 GND
37 MSS_SPIB_CS1 38 NC
39 SOP1_MSS_SPIB_CS2 40 NC
41 MSS_GPIO_0 42 GND
43 MSS_GPIO_1 44 LVDS_TX2_CLK_P
45 AR_WRMRST 46 LVDS_TX2_CLK_N
47 NC 48 GND
49 AR_NERROUT 50 LVDS_TX1_P
51 MSS_I2CA_SCL 52 LVDS_TX1_N
53 MSS_I2CA_SDA 54
55 MSS_EPWMB0 56 LVDS_TX0_P
57 MSS_EPWMA1 58 LVDS_TX0_N
59 MSS_GPIO_3 60 GND
2.4.3 CAN-A Interface Connector (J3)
The J3 connector provides the CANA_L and CANA_H signals from the onboard can CAN-FD transceiver
(TCAN1042HGVDRQ1). These can be directly wired to the CAN bus.
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
1 CAN_L
2 GND
3 CAN_H
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2.4.4 CAN-B Interface Connector (J2)
The J2 connector provides the CANB_L and CANB_H signals from the onboard can CAN-FD transceiver
(TCAN1043ADYYRQ1). These can be directly wired to the CAN bus.
Figure 2-8. CAN_B Connector
Table 2-4 provides the pin assignment details for the CAN_B connector connector.
Table 2-4. J2 Pin Assignment
Pin Number Description
1 CAN_L
2 GND
3 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. In order to access the RGMII interface over the J4 connector several resistors
must be populated. For more details please see Section 2.4.5.1 and refer to the Schematic, BOM, and Assembly
and Database and Layout files.
This interface is intended to operate primarily as a 100Mbps ECU interface. It can also be used as an
Instrumentation Interface.
It supports following features:
• Full Duplex 10Mbps/100Mbps wire rate Interface to Ethernet PHY over RGMII, parallel interface
• MDIO Clause 22 and 45 PHY management interface
• IEEE 1588 Synchronous Ethernet support
The Ethernet port is interfaced to the AWR2944 through the Ethernet PHY and is used to stream the captured
data over the network to the host PC.
Figure 2-9 shows the Ethernet RJ45 Mag-Jack connector, and Table 2-5 provides the connector pin details.
Table 2-5. J9 Pin Assignment
Pin Number Description Pin Number Description
1 GND 2 Test point
3 ETH_D4P 4 ETH_D4N
5 ETH_D3P 6 ETH_D3N
7 ETH_D2P 8 ETH_D2N
9 ETH_D1P 10 ETH_D1N
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Table 2-5. J9 Pin Assignment (continued)
Pin Number Description Pin Number Description
11 LED_ACTn 12 GND
13 GND 14 LED_LINKn
15 ETH_GND 16 ETH_GND
Figure 2-9. RJ45 Connector
Figure 2-10 shows the Ethernet MATEnet connector, and Table 2-6 provides the connector pin details.
Table 2-6. J4 Pin Assignment
Pin Number Description Pin Number Description
1 TRD_P 2 TRD_M
S1 GND S2 GND
S3 GND S4 GND
S5 GND S6 GND
Figure 2-10. MATEnet Connector
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2.4.5.1 ECOs to Enable the DP83TC812R PHY
By default, the board is designed to be used with the DP83867E PHY with the RJ45 connector. To enable the
DP83TC812R PHY with the MATEnet connector, the following hardware changes must be made. For help with
locating these components on the PCB, refer to the provided Schematic, BOM, and assembly files.
1. Remove R98 and populate on R74
2. Remove R101 and populate on R230
3. Remove R103 and populate on R96
4. Remove R105 and populate on R100
5. Remove R121 and populate on R178
6. Remove R122 and populate on R225
7. Remove R195 and populate on R245
8. Remove R290 and populate on R234
9. Remove R325 and populate on R237
10. Remove R336 and populate on R238
11. Remove R338 and populate on R239
12. Remove R339 and populate on R240
13. Remove R413 and populate on R247
14. Remove R369 and populate on R249
15. Populate D18 and D19 ESD diodes
16. Populate C55
17. The bootstrap configuration pins can be populated/removed as needed depending on the use case
2.4.6 USB Connectors (J8, J10)
Note
The EVM should be powered on before the USB cables are connected. Plugging in the USB cables
before powering on the board can cause the board to get stuck in a permanent reset state. In the
event that this occurs, just unplug the 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.
Table 2-7. J10 Pin Assignment
Pin Number Description Pin Number Description
1 FTDI_VBUS 2 FTDI_USBD_N
3 FTDI_USBD_P 4 FTDI_USBID
5 GND 6 GND
7 GND 8 GND
9 GND 10 GND
11 GND
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