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12

SPRUIM4B – December 2018 – Revised May 2020

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Copyright © 2018–2020, Texas Instruments Incorporated

xWR1843 Evaluation Module (xWR1843BOOST) Single-Chip mmWave
Sensing Solution

Figure 11. Antenna Pattern

Figure 12. Antenna Pattern

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Содержание WR1843 Series

Страница 1: ...uttons and LEDs for quick integration of a simple user interface Contents 1 Getting Started 2 1 1 Introduction 2 1 2 Key Features 2 1 3 Kit Contents 2 2 Hardware 3 2 1 Block Diagram 5 2 2 Power Connections 5 2 3 Connectors 6 2 4 PC Connection 9 2 5 Connecting the BoosterPack to the DCA1000 9 2 6 Connecting the BoosterPack to the LaunchPad or the MMWAVE DEVPACK 10 2 7 Antenna 11 2 8 Jumpers Switche...

Страница 2: ...em of the TI LaunchPad XDS110 based JTAG emulation with a serial port for onboard QSPI flash programming Back channel UART through USB to PC for logging purposes Onboard antenna 60 pin high density HD connector for raw analog to digital converter ADC data over LVDS and trace data capability Onboard CAN FD transceiver One button and two LEDs for basic user interface 5 V power jack to power the boar...

Страница 3: ...0 Submit Documentation Feedback Copyright 2018 2020 Texas Instruments Incorporated xWR1843 Evaluation Module xWR1843BOOST Single Chip mmWave Sensing Solution 2 Hardware Figure 1 and Figure 2 show the front and rear view of the EVM respectively Figure 1 EVM Front ...

Страница 4: ...om 4 SPRUIM4B December 2018 Revised May 2020 Submit Documentation Feedback Copyright 2018 2020 Texas Instruments Incorporated xWR1843 Evaluation Module xWR1843BOOST Single Chip mmWave Sensing Solution Figure 2 EVM Rear ...

Страница 5: ...gure 3 shows the block diagram Figure 3 Block Diagram 2 2 Power Connections The BoosterPack is powered by the 5 V power jack 2 5 A current limit shown in Figure 4 As soon as the power is provided the NRST and 5 V LEDs should glow indicating that the board is powered on NOTE After the 5 V power supply is provided to the EVM it is recommended to press the NRST switch SW2 one time to ensure a reliabl...

Страница 6: ...T 11 WARMRST 12 SPI_MOSI 13 BSS LOGGER 14 SPI_MISO 15 SOP2 16 HOSTINT 17 SOP1 18 GPIO02 19 SOP0 20 NC 1 Voltage input to the GPADC available on the xWR1843 2 Indicates the state of the onboard VIO supply for the AWR device coming from the onboard PMIC A HIGH on the PGOOD signal 3 3 V indicates the supply is stable Because the I Os are not failsafe the MCU must not drive any I O signals to the AWR ...

Страница 7: ...board VIO supply for the AWR device coming from the onboard PMIC A HIGH on the PGOOD signal 3 3 V indicates the supply is stable Because the I Os are not failsafe the MCU must not drive any I O signals to the AWR device before this I O supply is stable to avoid leakage current into the I Os Table 3 J1 Connector Pin Pin Number Description Pin Number Description 1 5V 2 5V 3 5V 4 TDO 5 TDI 6 TCK 7 SP...

Страница 8: ...A15 50 LVDS_1P 51 I2C_SDA 52 LVDS_1M 53 I2C_SCL 54 GND 55 RS232RX Rx into AWR device 56 LVDS_0P 57 RS232TX Tx from AWR device 58 LVDS_0M 59 nRESET 60 GND 2 3 3 CAN Interface Connector The J3 connector provides the CAN_L and CAN_H signals from the onboard CAND FD transceiver TCAN1042HGVDRQ1 These signals can be directly wired to the CAN bus Because the digital CAN signals Tx and Rx are muxed with t...

Страница 9: ...on data sent through the UART MSS logger UART can be used to get MSS code logs on the PC When the USB is connected to the PC the device manager should recognize the following COM ports shown in Figure 8 XDS110 Class Application User UART UART1 port XDS110 Class Auxiliary Data Port MSS logger port Figure 8 COM Ports If Windows is unable to recognize the COM ports users must install the EMU pack ava...

Страница 10: ...peed Data Capture and Pattern Generation Platform The TSW1400 FPGA platform allows users to capture the raw ADC data over the high speed debug interface and post process it in the PC Getting DSP trace data through the MIPI 60 pin interface Use the DMM interface This BoosterPack can be stacked on top of the Launchpad or the MMWAVE DEVPACK by using the two 20 pin connectors The connectors do not hav...

Страница 11: ...ane Figure 10 shows the PCB antennas Figure 10 RX and TX Antennas The antenna peak gain is 10 5 dBi across the frequency band of 76 to 81 GHz The radiation pattern of the antenna in the horizontal plane H plane and elevation plane E plane is as shown in Figure 11 and Figure 12 The beamwidth of the antenna design can be determined from the radiation patterns For example at 78 GHz based on 3 dB drop...

Страница 12: ...cember 2018 Revised May 2020 Submit Documentation Feedback Copyright 2018 2020 Texas Instruments Incorporated xWR1843 Evaluation Module xWR1843BOOST Single Chip mmWave Sensing Solution Figure 11 Antenna Pattern Figure 12 Antenna Pattern ...

Страница 13: ...the user and the EVM 2 8 Jumpers Switches and LEDs 2 8 1 Sense on Power SOP Jumpers The xWR1843 device can be set to operate in three different modes based on the state of the SOP lines These lines are sensed only during boot up of the AWR device The state of the device is detailed by Table 4 The SOP mode is set using switch S1 When the switch position is ON this refers to a 1 When the switch posi...

Страница 14: ...le 5 provides the switch and LED information Table 5 Switch and LED Information Reference Usage Comments SW2 RESET Used to RESET the xWR1843 device This signal is also brought out on the 20 pin connector and 60 pin HD connector so an external processor can control the AWR device The onboard XDS110 can also use this reset SW1 GPIO_1 When pushed the GPIO_1 is pulled to VCC DS2 Warm reset indication ...

Страница 15: ...Ds Figure 15 SW1 Figure 16 SW2 Figure 17 DS2 Figure 18 DS4 Figure 19 DS1 Figure 20 DS3 2 8 4 Selection Between SPI and CAN Interface The SPI and CAN interface are muxed on the same lines on the xWR1843 device Based on the configuration the user can select if the pins E14 and D13 must be connected to the 20 pin HD connectors to provide the SPI interface OR to the onboard CANFD PHY U3 This selection...

Страница 16: ...ivalent capacitor in their designs 3 2 Software Development Tools and Example Code To enable quick development of end applications on the C67x DSP and R4F core in the xWR1843 TI provides a software development kit SDK that includes demo codes software drivers emulation packages for debug and more These can be found at mmwave sdk 3 2 1 LDO Bypass Requirement The xWR1843BOOST utilizes a 1 0 V supply...

Страница 17: ...re Tools 17 SPRUIM4B December 2018 Revised May 2020 Submit Documentation Feedback Copyright 2018 2020 Texas Instruments Incorporated xWR1843 Evaluation Module xWR1843BOOST Single Chip mmWave Sensing Solution Figure 22 LDO Bypass Enable ...

Страница 18: ... There could be small ringing behavior at the point of transient load change If this is impacting the RX sampled data the ADC start time can be increased to a point where the supply is settled within 5 or the inductance value can be reduced to reduce the ringing which may come at the expense or poorer 4 Mhz filtering 4 Design Revision History Table 6 Design Revision History PCB Revision Change Des...

Страница 19: ...ation in open environments This oxidation causes the surface around the antenna region to blacken To avoid oxidation the PCB should be stored in an ESD cover and kept at a controlled room temperature with low humidity conditions All ESD precautions must be taken while using and handling the EVM 7 Troubleshooting EVM Board Power up Failure See Section 2 2 for desired power connections Please ensure...

Страница 20: ...bmit Documentation Feedback Copyright 2018 2020 Texas Instruments Incorporated Revision History Revision History NOTE Page numbers for previous revisions may differ from page numbers in the current version Changes from A Revision August 2019 to B Revision Page Added Note 16 ...

Страница 21: ...se resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for...

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