SPRUJE5A June   2025  – August 2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
      1. 1.3.1 External Power Supply or Accessory Requirements
    4. 1.4 Device Information
  7. 2Software
    1. 2.1 Software Description
    2. 2.2 Software Installation
      1. 2.2.1 Install SDK
      2. 2.2.2 Install Additional Software
        1. 2.2.2.1 Install Python
        2. 2.2.2.2 Install OpenSSL
    3. 2.3 Software Development
    4. 2.4 F29H85x LaunchPad Demo Program
    5. 2.5 Programming and Running Other Software on the F29H85x LaunchPad
  8. 3Hardware
    1. 3.1 Hardware Description
      1. 3.1.1 Functional Description and Connections
        1. 3.1.1.1  Microcontroller
        2. 3.1.1.2  PMIC
        3. 3.1.1.3  Power Domains
        4. 3.1.1.4  LEDs
        5. 3.1.1.5  Encoder Connectors
        6. 3.1.1.6  FSI
        7. 3.1.1.7  CAN
        8. 3.1.1.8  SENT
        9. 3.1.1.9  CLB
        10. 3.1.1.10 Boot Modes
        11. 3.1.1.11 BoosterPack Sites
        12. 3.1.1.12 Analog Voltage Reference
        13. 3.1.1.13 Differential ADC Header
        14. 3.1.1.14 Other Headers and Jumpers
          1. 3.1.1.14.1 XDS Isolation Block
          2. 3.1.1.14.2 BoosterPack Site 2 Power Isolation
          3. 3.1.1.14.3 Alternate Power
      2. 3.1.2 Debug Interface
        1. 3.1.2.1 XDS110 Debug Probe
        2. 3.1.2.2 XDS110 Output
        3. 3.1.2.3 Virtual COM Port
      3. 3.1.3 Alternate Routing
        1. 3.1.3.1 Overview
        2. 3.1.3.2 UART Routing
        3. 3.1.3.3 EQEP Routing
        4. 3.1.3.4 CAN Routing
        5. 3.1.3.5 FSI Routing
        6. 3.1.3.6 PWM DAC
      4. 3.1.4 Hardware Revisions
        1. 3.1.4.1 Revision A
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
      1. 4.2.1 LAUNCHXL-F29H85X Board Dimensions
    3. 4.3 Bill of Materials (BOM)
  10. 5Frequently Asked Questions
  11. 6Additional Information
    1. 6.1 Trademarks
  12. 7References
    1. 7.1 Reference Documents
    2. 7.2 Other TI Components Used in This Design
  13. 8Revision History

2.4 F29H85x LaunchPad Demo Program

The LAUNCHXL-F29H85X includes a F29H850TU9 device preprogrammed with a demo program. When the LaunchPad is powered on, the demo program begins with an LED blink sequence on LED4 and LED5. After a few seconds, the device switches into an ADC sampling mode.

Every 1 second, the ADC samples pin ADCINA6 and the sampled value is represented as follows: If the sample is above mid-scale (2048), the red LED4 illuminates. If the sample is below mid-scale, the green LED5 illuminates.

By default, the ADC is configured in external voltage reference mode. This is 3.0V high-precision voltage reference device (REF5030). The mid-scale point occurs around 1.5V. For more information about the analog voltage reference, see Section 3.1.1.12.

In addition to the LED indicators, ADC sample results are also displayed on your PC through the USB/UART connection. To view the UART information on your PC, first determine the COM port associated with the LaunchPad (see Figure 2-1). To do this in Windows, open the Device Manager. Look for an entry under Ports (COM & LPT) titled "XDS110 Class Application/User UART (COMX)", where X is a number. Remember this number for when you open a serial terminal.

LAUNCHXL-F29H85X LaunchPad XDS110 COM Port Figure 2-1 LaunchPad XDS110 COM Port

The demo application's UART data was tested using PuTTY, which is a free and open-source terminal emulator. To view the UART data in a serial terminal program, open the COM port found using the Windows Device Manager with the following settings:

115200 Baud, 8 data bits, no parity, 1 stop bit.

After properly opening the serial port in your serial terminal, reset the LaunchPad by pressing the S1 reset button and observe the serial terminal to see the TI logo in ASCII art (see Figure 2-2).

LAUNCHXL-F29H85X LaunchPad Demo Serial Terminal - TI Logo Figure 2-2 LaunchPad Demo Serial Terminal - TI Logo

After a few moments, the ADC value sampled on the ADCINA6 pin appears in the bottom right corner of the terminal and is updated each second (see Figure 2-3). Using a jumper wire, connect the ADCINA6 header to a 3.0V, GND, or other 0-3.0V signal to see the on-screen value change.

LAUNCHXL-F29H85X LaunchPad Demo Serial Terminal - ADC Sampling Figure 2-3 LaunchPad Demo Serial Terminal - ADC Sampling