SLLU373 November   2023

 

  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
  9. 3Software
    1. 3.1 Firmware and GUI Application
    2. 3.2 Downloading and Running Motor Studio
    3. 3.3 Downloading Code Composer Studio and Importing GUI Firmware
    4. 3.4 Using eZ-FET to Program the Onboard MSP430FR2355
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks

2.4 Connection Details

Figure 3-3 outlines which connections must be made to the MCF8329EVM in order to spin a 3-phase sensorless brushless-DC motor.

Connect a 4.5-V to 60-V power supply to the PVDD and GND terminals on connector J10.

Connect the three phases of the BLDC motor to the A, B, and C terminals of the screw terminal connector J11.

GUID-20231018-SS0I-12PX-JK7V-NMTNXP4QW7QS-low.pngFigure 2-3 Connections from Motor to MCF8329EVM

Figure 3-4 shows where the micro-USB cable is plugged into the MCF8329EVM to provide communication between evaluation module and GUI. The USB data and 5 V power from the USB is converted, by the FTDI chip, into UART data and 3.3 V power which is used to power the MSP430FR2355 microcontroller. The 5 V from the USB power is limited to 500 mA and the 3.3 V from the FTDI chip is limited to 30 mA. If the user wants to supply more current to these rails, then use the 5V_SEL jumper J6 and 3V3_SEL jumper J8 to connect external power rails.

GUID-20231018-SS0I-3RQZ-WDTS-HJPKF0NWXZTM-low.pngFigure 2-4 Micro-USB connector and USB-to-UART interface