SLLU359A december   2022  – may 2023

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Cautions and Warnings
  5. 2Introduction
  6. 3Quick Start Guide
  7. 4Hardware and Software Overview
    1. 4.1 Hardware Connections Overview – MCT8329EVM
    2. 4.2 Connection Details
    3. 4.3 MSP430FR2355 Microcontroller & User Interface
    4. 4.4 LED Lights
    5. 4.5 User-Configurable Settings
  8. 5Hardware Setup
  9. 6MCT8329 GUI Application
    1. 6.1 Running the GUI
    2. 6.2 Offline Installer
  10. 7MSP430FR2355 Interface Firmware
    1. 7.1 Downloading Code Composer Studio and Importing MSP430FR2355 Interface Firmware Code
    2. 7.2 Using the eZ-FET to Program the MSP430FR2355
  11. 8Schematics
    1. 8.1 Main Supply
    2. 8.2 Connectors and Interface
    3. 8.3 USB to UART
    4. 8.4 MCU Programming and Debug
    5. 8.5 MSP430FR2355 MCU
    6. 8.6 MCT8329 3-Phase Sensorless Trapezoidal Gate Driver
    7. 8.7 Status LEDs
    8. 8.8 Switches and Speed Input
  12. 9Revision History

4.5 User-Configurable Settings

The MCT8329EVM includes a variety of user-selectable jumpers, switches, and resistors on the entirety of the evaluation board to configure settings. Table 4-2 summarizes all of these configurable settings.

Table 4-2 Description of User-Selectable Settings on MCT8329EVM (Default in Bold)
Designator Setting Name Description Layer Position Function
J8 3V3_SEL Select 3.3 V for MCU power Top J8 = 3V3EXT External
J8 = 3V3COM From FTDI (30 mA)
J6 5V_SEL Select 5 V for FTDI power Top J6 = 5V_EXT External
J6 = 5V_USB From USB power (500 mA)
J13 SPEED_SEL Selects SPEED input source Top J13 = EXT External EXT_SPEED test point
J13 = POT From Potentiometer R47.
J13 =

INT_PWM

 From internal PWM. PWM Duty cycle can be varied by rotating the POT R47.
J9 MSP to MCx Shunt jumper bridge Connects signals from MCU and user switches to MCT8329 when jumpers are inserted Top DRVOFF_SW DRVOFF
DIR_SW DIR
BRAKE_SW BRAKE
SPEED_WAKE SPEED/WAKE
MSP_POCI/SCL SCL
MSP_PICO/SDA SDA
MSP_CLK NC
MSP_STE NC
DAC/SPEED DAC/SPEED
MSP_A2 NC
MSP_A1 GCTRL
NC NC
MSP_nFAULT nFAULT
MSP_FGOUT FGOUT
NC NC

GND

 GND
J12 VREG_SEL Selects VREG power supply Top Left position VREG powered by AVDD
Middle position VREG powered externally.
Right position VREG powered by MOSFET Q7
J1 AVDD LED Connects AVDD LED to 3.3 V pull up. Top Connected D1 lights up when AVDD is turned ON.
J2 nFAULT LED Connects nFAULT LED to 3.3 V pull up. Top Connected D2 lights up when nFAULT is

Pulled low.
J3 PVDD LED Connects PVDD LED to 3.3 V pull up. Top Connected D3 lights up when voltage is applied to PVDD.
S1 BRAKE Turns on all low-side MOSFETs Top Bottom Brake enabled
Top Brake disabled
S2 DRVOFF Disables gate drivers Top Bottom MCT8329 disabled
Top MCT8329 enabled
S3 DIR Controls direction of motor rotation. Top Bottom ABC
Top ACB
S4 SPEED/WAKE

Pulls SPEED/WAKE pin to AVDD and GND

 Top Bottom SPEED/WAKE pin pulled to AVDD.
Top SPEED/WAKE pin pulled to GND.
SW1 N/A Configure SPEED/WAKE pin to SPEED mode and DACOUT/SOx/SPEED_ANA pin Top Left Configure SPEED/WAKE pin to SPEED mode and DACOUT/SOx/SPEED_ANA pin to DACOUT mode.
Right Configure SPEED/WAKE pin to WAKE mode and DACOUT/SOx/SPEED_ANA pin to SPEED_ANA mode.