SPRUJ71 august   2023

 

  1.   1
  2.   C2000 F28P65x Series LaunchPad Development Kit
  3.   Trademarks
  4. 1Board Overview
    1. 1.1 Kit Contents
    2. 1.2 Features
    3. 1.3 Specifications
      1. 1.3.1 External Power Supply or Accessory Requirements
    4. 1.4 Using the F28P65x LaunchPad
    5. 1.5 BoosterPacks
    6. 1.6 Hardware Revisions
      1. 1.6.1 Revision A
  5. 2Software Development
    1. 2.1 Software Tools and Packages
    2. 2.2 F28P65x LaunchPad Demo Program
    3. 2.3 Programming and Running Other Software on the F28P65x LaunchPad
  6. 3Hardware Description
    1. 3.1 Functional Description and Connections
      1. 3.1.1  Microcontroller
      2. 3.1.2  Power Domains
      3. 3.1.3  LEDs
      4. 3.1.4  Encoder Connectors
      5. 3.1.5  FSI
      6. 3.1.6  CAN
      7. 3.1.7  EtherCAT
      8. 3.1.8  CLB
      9. 3.1.9  Boot Modes
      10. 3.1.10 BoosterPack Sites
      11. 3.1.11 Analog Voltage Reference
      12. 3.1.12 Differential ADC Header
      13. 3.1.13 Other Headers and Jumpers
        1. 3.1.13.1 XDS Isolation Block
        2. 3.1.13.2 BoosterPack Site 2 Power Isolation
        3. 3.1.13.3 Alternate Power
    2. 3.2 Debug Interface
      1. 3.2.1 XDS110 Debug Probe
      2. 3.2.2 XDS110 Output
      3. 3.2.3 Virtual COM Port
    3. 3.3 Alternate Routing
      1. 3.3.1 Overview
      2. 3.3.2 UART Routing
      3. 3.3.3 EQEP Routing
      4. 3.3.4 CAN Routing
      5. 3.3.5 FSI Routing
      6. 3.3.6 PWM DAC
  7. 4Board Design
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 BOM
    4. 4.4 LAUNCHXL-F28P65X Board Dimensions
  8. 5Frequently Asked Questions
  9. 6References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design

3.3.6 PWM DAC

In addition to the buffered DAC outputs available on BP pin 30 and BP pin 70, the F28P65x LaunchPad provides up to four PWM DAC signals at the BoosterPack headers using GPIO8 (BP pin 40) and GPIO9 (BP pin 39) on site 1 and GPIO2 (BP pin 80) and GPIO3 (BP pin 79) on site 2. The intended purpose of the PWM DAC signals are to utilize PWMs of the F28P65x device as digitial-to-analog converters (DAC). This method involves low-pass filtering the PWM signal to remove its high-frequency components and ideally leave only the DC component. For more information, see the Using PWM Output as a Digital-to-Analog Converter on a TMS320F280x Digital Signal Control.

By default the RC filter is not populated. Instead a 0 ohm resistor is populated and the capacitor is left un-populated.