SPRUJA7A November   2023  – April 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Hardware References
    2. 2.2 Hardware Quick Setup Guide
      1. 2.2.1 Configuration 1: Standalone
      2. 2.2.2 Configuration 2: External 5V Supply
    3. 2.3 Errata
      1. 2.3.1 Warnings, Notes, and Errata
      2. 2.3.2 Warnings About Specific controlCARD Revisions
    4. 2.4 Evaluation of the Analog-to-Digital Converters (ADCs)
  7. 3Software
    1. 3.1 Using the controlCARD
    2. 3.2 Experimentation Software
    3. 3.3 XDS110 Emulator and SCI (UART) Connectivity
  8. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Revision History

2.3.1 Warnings, Notes, and Errata

External power supply is needed when power requirements exceed USB limits.

The F28P55X Experimenter’s Kit ships with a USB cable and is designed to be powered via USB. However, in extreme cases, the board/controlCARD can require more power than the 5V at 500mA (USB 3.0 - 900mA) that a computer USB port can provide. This is especially true when additional circuitry has been added to the docking station. In such cases, TI recommends to use an external 5V power supply (2.5mm inner diameter x 5.5mm outer diameter) and plug into J1. A compatible supply such as:

  • CUI SMM6-5-K-P6 + SMI-US-5

5V power supply instability can lead to device resets.

The 5V rail on the TMDSCNCD28P55X controlCARD can be powered from an on-board USB connector or from a baseboard like the TMDSHSECDOCK. A switch device on the controlCARD automatically selects the 5V input power source for the controlCARD without the need for user configuration.

A loss of power or glitching on the baseboard 5V power source can cause the automatic switch to disconnect from both power sources for several milliseconds. This momentary loss of power can cause a brownout condition on the MCU, triggering a device reset. To avoid this condition, make sure that the baseboard power supply remains at 0V or 5V during code execution.

See SPRZ545 for more information.