SPRUIY1C November   2020  – April 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Preface: Read This First
      1. 1.2.1 If You Need Assistance
      2. 1.2.2 Important Usage Notes
    3. 1.3 Kit Overview
      1. 1.3.1 Kit Contents
      2. 1.3.2 Key Features
      3. 1.3.3 Component Identification
      4. 1.3.4 Daughter Cards
        1. 1.3.4.1 Connecting the AM273x EVM to the AWR2243BOOST EVM
        2. 1.3.4.2 Connecting the AM273x EVM to the DCA1000
      5. 1.3.5 Security
      6. 1.3.6 Compliance
  6. 2Hardware
    1. 2.1 Board Setup
      1. 2.1.1 Power Requirements
        1. 2.1.1.1 Power Status LEDs
      2. 2.1.2 Push Buttons
      3. 2.1.3 Switches
      4. 2.1.4 LEDs
      5. 2.1.5 Boot Mode Selection
    2. 2.2 Hardware Description
      1. 2.2.1  Functional Block Diagram
      2. 2.2.2  Memory Interface
        1. 2.2.2.1 QSPI Interface
        2. 2.2.2.2 Board ID EEPROM
      3. 2.2.3  Ethernet Interface
      4. 2.2.4  Micro USB Interfaces
        1. 2.2.4.1 FTDI USB Interface
          1. 2.2.4.1.1 FTDI EEPROM Memory Device
        2. 2.2.4.2 XDS USB Interface
        3. 2.2.4.3 PC Connection
      5. 2.2.5  I2C Interface
        1. 2.2.5.1 I2C Connections
      6. 2.2.6  UART Interface
      7. 2.2.7  CAN Interfaces
        1. 2.2.7.1 CAN-A Interface
        2. 2.2.7.2 CAN-B Interface
      8. 2.2.8  JTAG Emulation
      9. 2.2.9  SPI Interface
      10. 2.2.10 MDI Interface
      11. 2.2.11 ePWM Interface
    3. 2.3 Connectors
      1. 2.3.1 60-Pin High Density (HD) FE Connector-1 (J1)
      2. 2.3.2 60-Pin High Density (HD) FE Connector-2 (J11)
      3. 2.3.3 MIPI 60-Pin Connector (J19)
      4. 2.3.4 Debug Connector 60-Pin (J7)
      5. 2.3.5 External Clock Option (J13, J1)
    4. 2.4 Mechanical Mounting of the PCB
  7. 3Additional Information
    1. 3.1 Trademarks
    2.     3.A Rev. C Design Changes
  8. 4Revision History

2.2.5.1 I2C Connections

The board features temperature sensor for measuring onboard temperature, current sensors for current measurement for 1.2V, 1.8V, and 3.3V AM273x supply rails, and EEPROM for storing board ID. These are connected to the AM273x EVM through the I2C bus.

Table 3-10 shows the list of I2C devices available in the AM273x EVM board and the address.

Table 2-10 I2C Devices and Addresses
Sensor Type Reference Designator Part Number Peripheral Address
Temp sensor U24 TMP112AIDRLR 0x49
Current sensor for 3.3V rail U12 INA226AIDGSR 0x44
Current sensor for 1.8V rail U11 INA226AIDGSR 0x41
Current sensor for 1.2V Digital rail U9 INA226AIDGSR 0x40
Current sensor for 1.2V SRAM rail U25 INA226AIDGSR 0x45
EEPROM U28 CAV24C02WE-GT3 0x50