SNLU341A December   2023  – July 2024 MCT8314Z

 

  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
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Quick Start Guide
    2. 2.2 Hardware Setup
    3. 2.3 Hardware Connections Overview
    4. 2.4 Connection Details
    5. 2.5 MSP430FR2355 Microcontroller
    6. 2.6 LED Lights
    7. 2.7 User-Configurable Settings
      1. 2.7.1 Hardware Variant Settings
      2. 2.7.2 SPI Variant Resistor Settings
  9. 3Software
    1. 3.1 Firmware and GUI Application
    2. 3.2 MCT8314Z GUI
    3. 3.3 Running the GUI
    4. 3.4 Downloading Code Composer Studio and Importing GUI Firmware
    5. 3.5 Using the eZ-FET to Program the MSP430FR2355
  10. 4Hardware Design Files
    1. 4.1 Schematics
      1. 4.1.1 MCT8314Z 3-Phase Sensored Trapezoidal Motor Driver
      2. 4.1.2 Power Supplies
      3. 4.1.3 MCU Interface
      4. 4.1.4 User Interface
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Revision History

2.7 User-Configurable Settings

The MCT8314ZEVM includes a variety of user-selectable jumpers, switches, and resistors on the entirety of the evaluation board to configure settings. Table 3-2 summarizes all of these configurable settings.

Table 2-2 Description of User-Selectable Settings on MCT8314ZEVM (Default in Bold)
DesignatorSetting NameDescriptionLayerPositionFunction
J53V3_SELSelect 3.3V for MCU powerTopJ5 = 3V3EXTExternal
J5 = 3V3COMFrom FTDI (30mA)
J35V_SELSelect 5V for FTDI powerTopJ3 = 5V_EXT External
J3 = 5V_USBFrom USB power (500mA)
J1PWM_SELSelects PWM sourceTopJ1 = PWM_EXTExternal PWM
J1 = PWM_MSPPWM from MSP430
J13HALL_PWR_SELSelects Hall power sourceTopJ12 = HALL_EXTExternal Hall power
J12 = AVDDHall power from AVDD = 5V
J8HPA pullupEnables pullup on Hall positive A (HPA)TopJ8 is insertedPullup, use for Digital Hall inputs
J8 is removedFloating, use for Analog Hall inputs
J9HPB pullupEnables pullup on Hall positive B (HPA)TopJ9 is insertedPullup, use for Digital Hall inputs
J9 is removedFloating, use for Analog Hall inputs
J10HPC pullupEnables pullup on Hall positive C (HPC)TopJ10 is insertedPullup, use for Digital Hall inputs
J10 is removedFloating, use for Analog Hall inputs
J6MSP to MCT Shunt jumper bridgeConnects signals from MCU to MCT8314Z when jumpers are insertedTopFGOUTMSP_FGOUT
PWMMSP_PWM
STEMSP_STE
SCKMSP_SCK
PICOMSP_PICO
POCIMSP_POCI
nFAULTMSP_nFAULT
nSLEEPMSP_nSLEEP
AGNDAGND

S1

BRAKETurns on all low-side MOSFETsTopLeftBrake enabled
RightBrake disabled
S2DIRControls direction of motorTopLeftABC

Right

ACB
R15ILIMPull down resistor in series with potentiometer R9 that sets the cycle-by-cycle current limit. The current limit can be calculated using the equation 9000 / (R15+R9) = cycle-by-cycle current limit.Top

Counter Clockwise

ILIM = 6.2kΩ = 1.45A limit

Clockwise

ILIM = 16.2kΩ = 0.55A limit