SPRUJH0B April   2025  – September 2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
      1. 1.3.1 External Power Supply or Accessory Requirements
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Hardware Description
      1. 2.1.1 Functional Description and Connections
        1. 2.1.1.1 Power Domains
        2. 2.1.1.2 LEDs
        3. 2.1.1.3 Encoder Connectors
        4. 2.1.1.4 Boot Modes
        5. 2.1.1.5 BoosterPack Sites
        6. 2.1.1.6 Analog Voltage Reference
        7. 2.1.1.7 Other Headers and Jumpers
          1. 2.1.1.7.1 USB Isolation Block
          2. 2.1.1.7.2 Alternate Power
          3. 2.1.1.7.3 5V Step-up Converter
        8. 2.1.1.8 Programmable Gain Amplifier (PGA)
      2. 2.1.2 Debug Interface
        1. 2.1.2.1 XDS110 Debug Probe
        2. 2.1.2.2 Virtual COM Port
      3. 2.1.3 Alternate Routing
        1. 2.1.3.1 Overview
        2. 2.1.3.2 GPIO35/GPIO37 Routing
        3. 2.1.3.3 eQEP Routing
        4. 2.1.3.4 X1, X2 Routing
        5. 2.1.3.5 PWM DAC
    2. 2.2 Using the F28E12x LaunchPad
    3. 2.3 BoosterPacks
    4. 2.4 Hardware Revisions
      1. 2.4.1 Revision A
      2. 2.4.2 Revision E2
  9. 3Software
    1. 3.1 Software Development
      1. 3.1.1 Software Tools and Packages
      2. 3.1.2 F28E12x LaunchPad Demo Program
      3. 3.1.3 Programming and Running Other Software on the F28E12x LaunchPad
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
      1. 4.2.1 LAUNCHXL-F28E12X Board Dimensions
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Frequently Asked Questions
    2. 5.2 Trademarks
  12. 6References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design
  13. 7Revision History

2.1.1.2 LEDs

Power indicator LEDs (red) are included on the F28E12x LaunchPad board. Table 2-3 shows descriptions of each LED.

Table 2-3 Power LED Indication Descriptions
LED Number Indication Description
LED7 +5-V power from the USB Type-C™ connector
LED0 +3.3-V power on the XDS110 side of the PCB
LED6 +5-V power on the F28E12x side of the PCB
LED1 +3.3-V power on the F28E12x side of the PCB

Two user LEDs are provided on the board: LED4 (red) and LED5 (green), see Table 2-4. These user LEDs are connected to GPIO45 and GPIO33 of the F28E120SC, respectively. The signals are connected to the SN74LVC2G07 LED driver IC and are connected in an active-low configuration; that is, drive the GPIO low to turn on the LED and high to turn off the LED. These LEDs are dedicated for use by the software application.

Table 2-4 User-Configurable LED Descriptions
LED Number Description
LED4 Active-low user-configurable LED controlled by GPIO45
LED5 Active-low user-configurable LED controlled by GPIO33

Two blue LEDs, LED2 and LED3, are connected to the XDS110 debug probe, see Table 2-5. These indicate debugger activity and are not controllable by any application software.

Table 2-5 XDS110 LED Descriptions
LED Number Indication Description
LED2 Indicates that the XDS110 device is actively connected to a debugger target session (for example, CCS IDE debug session)
LED3 Indicates that the XDS110 device is powered and functional