SPRUJ15B November   2021  – October 2022

 

  1.   F2800137 controlCARD Information Guide
  2.   Trademarks
  3. 1Introduction
  4. 2Hardware Quick Setup Guide
    1. 2.1 Configuration 1: Standalone
    2. 2.2 Configuration 2: External 5 V Supply
  5. 3Errata
    1. 3.1 Warnings, Notes, and Errata
    2. 3.2 Warnings About Specific controlCARD Revisions
  6. 4Getting Familiar with the controlCARD
    1. 4.1 F2800137 controlCARD Features
    2. 4.2 Assumed Operating Conditions
    3. 4.3 Power Supply Requirements
      1. 4.3.1 External Power Supply or Accessory Requirements
    4. 4.4 Using the controlCARD
    5. 4.5 Experimentation Software
  7. 5Special Notes
    1. 5.1 XDS110 Emulator and SCI (UART) Connectivity
    2. 5.2 Clocking Methodology
    3. 5.3 Evaluation of the Analog-to-Digital Converters (ADCs)
  8. 6Hardware References
  9. 7Revision History

5.2 Clocking Methodology

This controlCARD is required to support a broad range of TI's baseboards. Several designs rely on GPIO18 and GPIO 19 for EPWM6 , while others require these GPIO to be utilized as a precision clock input source. To accommodate both of these systems a switch (S2) has been added to the design. This methodology should not be used in a final system as it increases EMI emissions and creates robustness susceptibilities. It is up to the system designer to choose the best way to implement the clocking circuity for a given system.