SLLU361 December   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Cautions and Warnings
  4. 2Introduction
  5. 3Quick Start Guide
  6. 4Hardware and Software Overview
    1. 4.1 Hardware Connections Overview – MCT8315EVM
    2. 4.2 Connection Details
    3. 4.3 MSP430FR2355 Microcontroller & User Interface
    4. 4.4 LED Lights
    5. 4.5 User-Configurable Settings
  7. 5Hardware Setup
  8. 6MCT8315 GUI Application
    1. 6.1 Running the GUI
    2. 6.2 Offline Installer
  9. 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
  10. 8Schematics
    1. 8.1 Main Supply and Pi Filter
    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 MCT8316A 3-Phase Sensorless Trapezoidal Control Integrated Driver
    7. 8.7 Buck Regulator
    8. 8.8 Status LEDs
    9. 8.9 Switches and Speed Input
  11. 9Revision History

User-Configurable Settings

The MCT8315EVM 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 MCT8315EVM (Default in Bold)
DesignatorSetting NameDescriptionLayerPositionFunction
L1/L2/R9Buck Regulator modeUser populates L1, L2, or R9 to choose switching component for buck regulatorTopL1 = 47uH InductorInductor Mode
BottomL2 = 22 μHInductor Mode
BottomR9 = 22 ΩResistor Mode
J53V3_SELSelect 3.3 V for MCU powerTopJ5 = 3V3EXTExternal
J5 = 3V3COMFrom FTDI (30 mA)
J35V_SELSelect 5 V for FTDI powerTopJ3 = 5V_EXTExternal
J3 = 5V_USBFrom USB power (500 mA)
J1SPEED_SELSelects SPEED input sourceTopJ1 = EXTExternal EXT_SPEED test point
J1 = POTFrom Potentiometer R4
J1 =

PWM

On-board PWM from MSP430
J6MSP to MCx Shunt jumper bridgeConnects signals from MCU and user switches to MCx8316A when jumpers are insertedTopDRVOFF_SWDRVOFF
DIR_SWDIR
BRAKE_SWBRAKE
SPEED_INSPEED
MSP_SOMI/SCL

MCx_SCL

MSP_SIMO/SDAMCx_SDA

MSP_CLK

NC

MSP_STE

NC

MSP_A3

DACOUT2/SOX

MSP_A2

DACOUT2

MSP_A1

DACOUT1

MSP_ALARM

ALARM

MSP_nFAULT

nFAULT

MSP_FG

FG

NC

VBK

AGND

AGND

S1

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

Right

ACB
S3DRVOFFDisables gate driversTopLeftMCT8315 FETs disabled
RightMCT8315 FETs enabled