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User's Guide
AM273x EVM User's Guide
Abstract
The AM273x EVM is an Evaluation module designed to develop software and evaluate the AM273x Radar
Controller and Processor SoC from Texas Instruments. The AM273x is a multicore SoC designed to provide an
integrated control and processing platform for TI AWR mmWave radar front-end devices in both single-device
and cascaded modes of operation. The signal interface between the AM273x EVM and the AWR2243BOOST
mmWave Radar EVM uses the 60-pin Samtec high density connector.
Abstract......................................................................................................................................................................................
1 Preface: Read This
First.........................................................................................................................................................3
1.1 If You Need Assistance......................................................................................................................................................
1.2 Important Usage Notes......................................................................................................................................................
2 Kit Overview............................................................................................................................................................................
2.1 Kit
Contents........................................................................................................................................................................4
2.2 Key Features
.....................................................................................................................................................................5
2.3 Component Identification...................................................................................................................................................
2.4 Daughter
Cards..................................................................................................................................................................7
2.5 Compliance........................................................................................................................................................................
3 Board
Setup.............................................................................................................................................................................8
3.1 Power
Requirements..........................................................................................................................................................8
3.2 Push
Buttons......................................................................................................................................................................9
3.3 Switches...........................................................................................................................................................................
3.4 LEDs................................................................................................................................................................................
3.5 Boot Mode Selection........................................................................................................................................................
4 Hardware
Description...........................................................................................................................................................15
4.1 Functional Block Diagram................................................................................................................................................
4.2 Memory Interface.............................................................................................................................................................
4.3 Ethernet
Interface.............................................................................................................................................................16
4.4 Micro USB Interfaces.......................................................................................................................................................
4.5 I2C
Interface.....................................................................................................................................................................22
4.6 UART
Interface.................................................................................................................................................................24
4.7 CAN
Interfaces.................................................................................................................................................................25
4.8 JTAG Emulation...............................................................................................................................................................
4.9 SPI Interface....................................................................................................................................................................
4.10 MDI
Interface..................................................................................................................................................................29
4.11 ePWM
Interface..............................................................................................................................................................30
5
Connectors............................................................................................................................................................................31
5.1 60-Pin High Density (HD) FE Connector-1 (J1)...............................................................................................................
5.2 60-Pin High Density (HD) FE Connector-2
5.3 MIPI 60-Pin Connector
5.4 Debug Connector 60-Pin (J7)..........................................................................................................................................
5.5 External Clock Option (J13, J1).......................................................................................................................................
6 Mechanical Mounting of the
7 Revision History...................................................................................................................................................................
A Rev. C Design Changes.......................................................................................................................................................
Figure 2-1. AM273x EVM Top Component
Figure 2-2. AM273x EVM Bottom Component Identification.......................................................................................................
Figure 2-3. Interfacing DCA1000 EVM to Debug Connector of the AM273x EVM......................................................................
Figure 3-1. Barrel Jack Connector
SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022
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Table of Contents
(J11)..............................................................................................................32
(J19)............................................................................................................................................33
PCB........................................................................................................................................37
List of Figures
Identification.............................................................................................................5
(J12)......................................................................................................................................8
Copyright © 2022 Texas Instruments Incorporated
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AM273x EVM User's Guide
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Summary of Contents for Texas Instruments AM273x
- Page 1 The AM273x EVM is an Evaluation module designed to develop software and evaluate the AM273x Radar Controller and Processor SoC from Texas Instruments. The AM273x is a multicore SoC designed to provide an integrated control and processing platform for TI AWR mmWave radar front-end devices in both single-device and cascaded modes of operation.
- Page 2 Trademarks www.ti.com Figure 3-2. AM273x EVM Push Buttons............................Figure 3-3. AM273x EVM Switches............................Figure 3-4. AM273x EVM LED's..............................Figure 3-5. SOP Jumpers................................Figure 4-1. AM273x Functional Block Diagram......................... Figure 4-2. QSPI Interface.................................16 Figure 4-3. Board ID EEPROM ..............................16 Figure 4-4. Ethernet Interface Block Diagram...........................
- Page 3 1 Preface: Read This First 1.1 If You Need Assistance If you have any feedback or questions, support for Sitara MCUs and the AM273x EVM development kit is provided by the TI Product Information Center (PIC) and the TI E2E ™...
- Page 4 Kit Overview www.ti.com 2 Kit Overview 2.1 Kit Contents The Sitara AM273x EVM Development Kit contains the following items: • TMDS273GPEVM • Micro USB cable • Ethernet Cable • Samtec coax micro ribbon cable (HQCD-030-02.00-SEU-TBR-1) • Spacers, screws, and washers AM273x EVM User's Guide SPRUIY1A –...
- Page 5 One button and LED for basic user interface • 12-V power jack to power the board 2.3 Component Identification Figure 2-1. AM273x EVM Top Component Identification SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback...
- Page 6 Kit Overview www.ti.com Figure 2-2. AM273x EVM Bottom Component Identification AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 7 Kit Overview 2.4 Daughter Cards The AM273x EVM development kit provides an easy and inexpensive way to develop applications with the AM273x Series microcontroller. Daughter cards are add-on boards that follow a pin-out standard created by Texas Instruments. The TI and third-party ecosystem of daughter cards greatly expands the peripherals and potential applications that you can easily explore with the AM273x EVM.
- Page 8 3 Board Setup 3.1 Power Requirements The AM273x EVM is powered through a barrel jack connection. The power source should be capable of providing 2.5A at 12 V. The length of the power cable should be < 3 m. External Power Supply or Power Accessory Requirements:...
- Page 9 3.4. 3.2 Push Buttons The EVM supports two buttons that provide a reset and user input to the controller. Figure 3-2. AM273x EVM Push Buttons SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback...
- Page 10 Board Setup www.ti.com Table 3-2. EVM Push Buttons Push Button Signal Function TPR_NRST AM273x, PMIC, and FTDI device reset MSS_GPIO_28 User interrupt input Table 3-3. Push Buttons Switches Information Reference Usage Comments Image RESET This Switch is used to RESET the AM2732, PMIC, and FTDI device.
- Page 11 Board Setup 3.3 Switches The AM273x EVM contains two switches to mux various interfaces to different connectors on the EVM. Figure 3-3. AM273x EVM Switches Table 3-4. Switches Information Reference Usage Comments Image JTAG When set to ‘MIPI’ position, the JTAG interface is routed to the MIPI 60-pin connector (J19).
- Page 12 Board Setup www.ti.com 3.4 LEDs Figure 3-4. AM273x EVM LED's AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 13 AM273x device Yellow WRMRST Open drain fail safe warm reset signal Green GPIO_2 Glows when the GPIO_2 is logic-1 SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 14 Table 3-6. A closed jumper refers to a ‘1’ and an open jumper refers to a ‘0’ state of the SOP signal going to the AM273x device. Table 3-6. Boot Mode Selection Table Boot Modes Supported...
- Page 15 The TMDS273GMEVM board has a 64 Mbit QSPI memory device (GD25B64CWAG from GigaDevice), which is connected to the MSS_QSPI interface of the AM273x SoC. This flash device is primarily meant to store the boot image, but can also serve as storage for other data if another boot mode is used.
- Page 16 4.2.2 Board ID EEPROM The AM273x EVM is a 2 Kbit I2C EEPROM for board ID information. The board ID memory is configured to respond to I2C address 0x50. This EEPROM (CAV24C02WE-GT3 from Onsemi) interfaces with the SoC via the MSS_I2CA port.
- Page 17 Table 4-1. J9 Connector Pin Pin Number Description Pin Number Description Test point ETH_D4P ETH_D4N ETH_D3P ETH_D3N ETH_D2P ETH_D2N ETH_D1P ETH_D1N SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 18 4.4 Micro USB Interfaces The TMDS273GPEVM has two standard micro USB connectors. Micro USB Connector J10 provides access to the AM273x UART, SPI, I2C, and SOP interfaces through the FTDI chip. Micro USB connector J8 provides access to the JTAG, MSS_UARTA, and MSS_UARTB interfaces of the AM273x via the XDS110 emulator.
- Page 19 Hardware Description Figure 4-7. FTDI USB Block Diagram SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 20 Micro USB connector J8 provides access to the JTAG and MSS_UARTA interface with the MSS_UARTB transmission line of the AM273x via the XDS110 emulator. This is the UART interface used to flash the binary to the onboard serial flash and for OOB demo.
- Page 21 Figure 4-9. XDS USB Interface Block Diagram Table 4-3. J8 Connector Pin Pin Number Description Pin Number Description XDSET_VBUS XDSET_D_N XDSET_D_P XDSET_ID SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 22 RCSS_I2CA and RCSS_I2CB lines require pin muxing to be accessible. Information regarding the locations of the I2C modules for the AM273x can be found in the Pin Attributes section of the AM273x datasheet.
- Page 23 RCSS_I2CA: – Not available on the TMDS273GPEVM by default • RCSS_I2CB: – Not available on the TMDS273GPEVM by default SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 24 4.5.1 I2C Connections The board features temperature sensor for measuring onboard temperature, current sensors for current measurement for 1.2-V, 1.8-V, and 3.3-V AM273x supply rails, and EEPROM for storing board ID. These are connected to the TMDS273GPEVM through the I2C bus.
- Page 25 The J3 connector provides the CANA_L and CANA_H signals from the onboard can CAND-FD transceiver (TCAN1042HGVDRQ1). These can be directly wired to the CAN bus. SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 26 The J2 connector provides the CANB_L and CANB_H signals from the onboard can CAND-FD transceiver (TCAN1042HGVDRQ1). These can be directly wired to the CAN bus. AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 27 Figure 4-16. CAN-B Schematic 4.8 JTAG Emulation The AM273x EVM includes the necessary circuitry for XDS110 emulation. The XDS110 class on-board emulation is used to support testing of software builds. The connection for the emulator uses a USB 2.0 micro-B connection (J8).
- Page 28 'XDS,' the signals will be routed to the emulator and XDS USB port (J8). Figure 4-17. JTAG Emulation Block Diagram AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 29 PHY by default. Please refer to Figure 4-5 for more detail on the Ethernet PHY design. SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 30 MSS_EPWMA0 is routed to pin 6 of the 60 pin debug header. Figure 4-19. ePWM Debug Header Pin Please see Section 5.4 for further detail on the Debug Connector pinout. AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 31 Pin Number Description Pin Number Description RCSS_SPIA_CS RCSS_SPIA_CLK RCSS_SPIA_HOSTINT RCSS_SPIA_MOSI RCSS_SPIA_MISO NERRIN_FE1 HW_SYNC_FE1 CSI2_RX0_3P SOP0_FE1 CSI2_RX0_3N SOP1_FE1 SOP2_FE1 CSI2_RX0_2P SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 32 Figure 5-2. High Density FE Connector-2 Schematic Table 5-2. J11 Connector Pin Pin Number Description Pin Number Description RCSS_SPIB_CS RCSS_SPIB_CLK RCSS_SPIB_HOSTINT RCSS_SPIB_MOSI RCSS_SPIB_MISO NERRIN_FE2 HW_SYNC_FE2 AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 33 To use this interface, the JTAG lines from the TMDS273GPEVM must be muxed to MIPI 60-pin connector. Figure 5-3. MIPI 60 Connector Schematic SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 34 SPI, I2C, JTAG, GPADC, and other control signals from the TMDS273GPEVM for debug purposes. The SPI interface must be muxed to the Debug Connector. For more details, refer to Section 3.3. AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 35 GPADC7 LVDS_TX3_P GPADC8 LVDS_TX3_N GPADC9 MSS_SPIB_CS1 LVDS_TX2_P SOP1_MSS_SPIB_CS2 LVDS_TX2_N MSS_GPI0_28 MSS_GPI0_2 LVDS_CLK_P TPR_WRMRST LVDS_CLK_N TPR_NERRIN TPR_NERROUT LVDS_TX1_P MSS_I2CA_SCL LVDS_TX1_N SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 36 LVDS_TX0_N 5.5 External Clock Option (J13, J1) The AM273x SoC can operate with external clock source provided from J13 connector or clock provided from Radar FE via OSCK_FE1 on connector J1 (the HD Front End Connector). It supports externally driven clock (Square/Sine) at 40/50 MHz.
- Page 37 The TMDS273GPEVM is designed to interface with the DCA1000 EVM on Debug Connector (J7). Figure 6-3 shows how the TMDS273GPEVM can be connected to the DCA1000 EVM. SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 AM273x EVM User's Guide Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 38 Changes from Revision * (November 2020) to Revision A (October 2022) Page • (Rev C. Design Changes): Added section to detail revision changes from Rev B. → Rev C......39 AM273x EVM User's Guide SPRUIY1A – NOVEMBER 2020 – REVISED OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 39 Rev. C Design Changes A Rev. C Design Changes The AM273x GPEVM had various design changes for the Revision C of the board. The changes are listed below: 1. Power Supply Changes a. The Rev. C GPEVM makes use of the LP877451 PMIC which will require a 3.3 V pre regulator but eliminate the need for additional external DC-DC converters.
- Page 40 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 41 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 42 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 43 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 44 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
- Page 45 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 © 2022, Texas Instruments Incorporated...
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