SPRUJE8C December   2024  – June 2025 AM2752-Q1 , AM2754-Q1

 

  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 Important Usage Notes
    3. 1.3 Kit Contents
    4. 1.4 Device Information
      1. 1.4.1 Security
    5. 1.5 Audio Expansion Connectors
  6. 2Hardware
    1. 2.1  Component Identification
    2. 2.2  Power Requirements
      1. 2.2.1 Power Input Using USB Type-C Connector
      2. 2.2.2 Power Status LEDs
      3. 2.2.3 Power Tree
      4. 2.2.4 Power Sequence
      5. 2.2.5 PMIC
    3. 2.3  Reset
    4. 2.4  Clock
    5. 2.5  Boot Mode Selection
    6. 2.6  Header Information
    7. 2.7  Push Buttons
    8. 2.8  Switches
    9. 2.9  GPIO Mapping
    10. 2.10 Interfaces
      1. 2.10.1  Memory Interface
        1. 2.10.1.1 OSPI Interface
        2. 2.10.1.2 Board ID EEPROM
        3. 2.10.1.3 MMC0 Interface
        4. 2.10.1.4 HYPERRAM
      2. 2.10.2  Ethernet Interface
        1. 2.10.2.1 Ethernet Add-on Connectors
      3. 2.10.3  Audio Interfaces
        1. 2.10.3.1 Audio Clocking
        2. 2.10.3.2 McASP
        3. 2.10.3.3 MLB
      4. 2.10.4  I2C Interface
      5. 2.10.5  SPI
      6. 2.10.6  UART
      7. 2.10.7  MCAN
      8. 2.10.8  JTAG
      9. 2.10.9  USB
      10. 2.10.10 ADC
    11. 2.11 AEC Mapping
      1. 2.11.1 Audio Expansion Connector 1
      2. 2.11.2 Audio Expansion Connector 2
    12. 2.12 Test Points
  7. 3Hardware Design Files
  8. 4Additional Information
    1. 4.1 If You need Assistance
    2. 4.2 Trademarks
    3. 4.3 Rev. E2 Design Changes
  9. 5References
    1. 5.1 Reference Documents
    2. 5.2 Other TI Components Used This Design
  10. 6Revision History

4.3 Rev. E2 Design Changes

The AM275x EVM had various design changes for Revision E2 of the board. The changes are listed below:

  • Replaced C640 with a 1uF Capacitor, and replaced R680 and R677 with 1 kilo-ohm resistors to remove undesired leakage on VCC_5V0 rail.
  • Replaced C213 and C216 with 18pf capacitor for load capacitance increase.
  • Replaced GPIO_eMMC_RSTn pull-up resistor R115 with 10 kilo-ohm resistor.
  • Replaced eMMC data[D7-D0] & CMD pin pull-up resistors with 47 kilo-ohm resistors.
  • Replace the uSD connector signals' pull-up resistors with 47 kilo-ohm resistors.
  • Changed named net names in the schematic for UART0 TX and RX for appropriate routing to/from XDS110 debug IC.
  • Added a 1 kilo-ohm pull-down resistor on VSEL_SD_SOC to prevent floating state input to buffer.
  • Added buffer between SAFETY_ERRORn output and PMIC WD_DISABLE (GPIO6) to make sure the PMIC watchdog remains disabled without interference from the SoC until the entire power sequence is completed.
  • Made the output enable logic of FT4232 UART buffers to be driven by the inverse of Resetstatz such that UART2 RX can only drive the BOOTMODE8 line when the device is out of reset.
  • Replace eMMC chip (MTFC32GAZAQHD-IT) with the new alternate MTFC32GBCAQTC-AAT from Micron.
  • Change net name of SoC_GPIO1_49 to SoC_GPIO0_38 and GPIO1_23_INTn to MCU_GPIO0_1_INTn to align with corresponding SoC instance names in GPIO mode.