SPRUJ22C November   2021  – September 2024 AWR2944

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Key Features
    3. 1.3 What’s Included
      1. 1.3.1 Kit Contents
      2. 1.3.2 mmWave Out-of-Box (OOB) Demo
  6. 2Hardware
    1. 2.1  Block Diagram
    2. 2.2  PCB Handling Recommendations
    3. 2.3  Power Connections
    4. 2.4  Connectors
      1. 2.4.1 MIPI 60-Pin Connector (J19)
      2. 2.4.2 Debug Connector-60 pin (J7)
      3. 2.4.3 CAN-A Interface Connector (J3)
      4. 2.4.4 CAN-B Interface Connector (J2)
      5. 2.4.5 Ethernet Ports (J4 and J9)
        1. 2.4.5.1 ECOs to Enable the DP83TC812R (AWR2944EVM) or DP83TG720S (AWR2944PEVM) PHY
          1. 2.4.5.1.1 ECO needed to source 25MHz clock from AWR2944P to DP83TG720S
      6. 2.4.6 USB Connectors (J8, J10)
      7. 2.4.7 OSC_CLKOUT Connector (J14)
      8. 2.4.8 PMIC SPI Connector (J16) (DNP)
      9. 2.4.9 Voltage Rails Ripple Measurement Connectors (J1, J5) (DNP)
    5. 2.5  Antenna
    6. 2.6  PMIC
    7. 2.7  On-Board Sensors
    8. 2.8  PC Connection
      1. 2.8.1 XDS110 Interface
      2. 2.8.2 FTDI Interface
    9. 2.9  Connecting the AWR2944EVM/AWR2944PEVM to the DCA1000 EVM
    10. 2.10 Jumpers, Switches, and LEDs
      1. 2.10.1 Switches
      2. 2.10.2 Sense On Power (SOP) Jumpers (J17, J18, J20)
      3. 2.10.3 I2C Connections
      4. 2.10.4 Push Buttons
      5. 2.10.5 LEDs
  7. 3Software
    1. 3.1 Software, Development Tools, and Example Code
  8. 4Hardware Design Files
    1. 4.1 Design Files
  9. 5Compliance Information
    1. 5.1 Requirements for Operating in the EU and UK regions
  10. 6Additional Information
    1.     Trademarks
  11. 7Revision History

2.10.3 I2C Connections

The board features temperature sensor for measuring onboard temperature, current sensors for current measurement for 1.2V, 1.8V, 3.3V, 1V0_RF1, and 1V0_RF2 AWR2944 supply rails and EEPROM for storing board ID. These are connected to the AWR2944EVM/AWR2944PEVM through I2C bus.

Table 2-14 shows the list of I2C devices available in AWR2944EVM/AWR2944PEVM board and the address.

Table 2-14 I2C Device Addresses
Sensor Type Reference Designator Part Number Target 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 1.0V RF1 rail U22 INA226AIDGSR 0x42
Current sensor for 1.0V RF2 rail U30 INA226AIDGSR 0x43
EEPROM U28 CAV24C02WE-GT3 0x50