SLLU387 August   2024

 

  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 – MCF8315RRYEVM
    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 Code
    4. 3.4 Using eZ-FET to Program the Onboard MSP430FR2355
  10. 4Hardware Design Files
    1. 4.1 Schematics
      1. 4.1.1 Main Supply and Pi Filter
      2. 4.1.2 Connectors and Interface
      3. 4.1.3 USB to UART
      4. 4.1.4 MCU Programming and Debug
      5. 4.1.5 MSP430FR2355 MCU
      6. 4.1.6 MCF8315 3-Phase Sensorless FOC Integrated Driver
      7. 4.1.7 Buck Regulator
      8. 4.1.8 Status LEDs
      9. 4.1.9 Switches and Speed Input
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks

2.4 Connection Details

Figure 2-3 outline which connections must be made to the MCF8315RRYEVM to spin a 3-phase sensorless brushless-DC motor.

Connect a 4.5V to 35V power supply or battery to VBAT or VM and PGND terminals on connector J7. There is a reverse polarity protection and Pi filter implemented on the VBAT and PGND terminals. To bypass the reverse polarity protection and Pi filter, connect the power supply to the VM terminal or VM test point on the board and PGND.

Connect the three phases of the BLDC motor to the A, B, and C terminals of the screw terminal connector J8.

MCF8315RRYEVM Connections from Motor to MCF8315RRYEVM Figure 2-3 Connections from Motor to MCF8315RRYEVM

Figure 2-4 shows where the micro-USB cable is plugged into the MCF8315RRYEVM to provide communication between evaluation module and GUI. The USB data and 5V power from the USB is converted, by the FTDI chip, into UART data and 3.3V power which is used to power the MSP430FR2355 microcontroller. The 5V from the USB power is limited to 500mA and the 3.3V from the FTDI chip is limit to 30mA. If the user wishes to supply more current to these rails, then users can use the 5V_SEL jumper J3 and 3V3_SEL jumper J5 to connect external power rails.

MCF8315RRYEVM Micro-USB Connector and USB-to-UART interface Figure 2-4 Micro-USB Connector and USB-to-UART interface