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

3.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
    1. The Rev. C GPEVM makes use of the LP877451 PMIC, which requires a 3.3V pre regulator but eliminate the need for additional external DC-DC converters.
      Table A-1 Rev. C Power Solution Changes
      Revision External DC-DC Converters Function PMIC Function
      Rev B TLV733 1.8V → 1.0V TPS65313 12V → 5V, 3.3V, 1.8V
      TPS62813 3.3V → 1.2V
      Rev C LM63625 12V→ 3.3V LP877451 3.3V → 5V, 3.3V, 1.8V, 1.2V,1.0V
  2. Changes for McASP
    1. The Rev C. routes out the McASP-A and McASP-C signals to a new 30 pin McASP header.
    2. Two additional 1:2 Muxes were added to support the signal path of the McASP A/C signals to the header where the select line logic comes from a single pole double throw switch.
      Table A-2 McASP Mux Select
      Switch Position McASP_Mux_Select Logic Function
      Pin 1 Pulled down to ground non-McASP signals are connected
      Pin 3 Pulled up to 3.3V McASP signals are connected to the 30-pin header
    3. The TRACE_DATA[0-6] signals from the AM273x were renamed to MUX_TRACE_DATA[0-6] to reflect that the signals are now inputs to a mux before being routed to MIPI 60 pin header.
  3. Changes for eCAP
    1. The Rev C. routes out the eCAP signals to a new 4 pin eCAP header.
    2. 1:2 Mux added to give the option to route the eCAP signals to the eCAP header where the select line logic comes from a single pole double throw switch.
      Table A-3 eCAP Mux Select
      Switch Position McASP_Mux_Select Logic Function
      Pin 1 Pulled down to ground non-eCAP signals connected
      Pin 3 Pulled up to 3.3V eCAP signals connected to the 4-pin header
    3. An additional single pole double throw switch was added to choose between the McASP-A CLK return signal and the eCAP