DRV8317HEVM Hardware User Guide

1. Overview

To spin the BLDC motor with the DRV8317HEVM, the user needs to modify some jumpers on the MSPM0 LaunchPad, connect the EVM pins to the LaunchPad, connect the motor phases and hall sensors to the DRV hardware and power on the supply.

2. Hardware Required

  • LP-MSPM0G3507 - MSPM0G3507 Launchpad

  • DRV8317HEVM - DRV8317HEVM evaluation module

  • DC Power supply that supports the required voltage and current

  • BLDC Motor

  • Micro-USB cable

3. Hardware Setup

  1. Connect the jumpers J21 and J22 on the LP-MSPM0G3507 to the BP position

  1. If using external ADC reference, populate resistor R22 on the LP-MSPM0G3507 and apply the external reference voltage to PA23, which is accessible on the bottom header row of the Launchpad.

  2. Connect the LP-MSPM0G3507 to the DRV8317HEVM using jumper wires as shown in the table below. Refer to the schematic connector pinout for the locations of the DRV8317HEVM signals.

    Connection

    MSPM0G3507

    DRV8317HEVM

    Jumper Notes

    Phase A HS input

    PB4

    INHA

    Phase A LS input

    PB1

    INLA

    Phase B HS input

    PA28

    INHB

    Phase B LS input

    PA31

    INLB

    Phase C HS input

    PB20

    INHC

    Phase C LS input

    PB13

    INLC

    HALL A input

    PA10

    HALLA

    J21 connected to BP

    HALL B input

    PA11

    HALLB

    J22 connected to BP

    HALL C input

    PA12

    HALLC

    Bus voltage input

    PA25

    VSENVM

    Phase A voltage

    PB19

    VSENA

    Phase B voltage

    PA22

    VSENB

    Phase C voltage

    PB18

    VSENC

    Phase A current

    PA24

    ISENA

    Phase B current

    PA17

    ISENB

    Phase C current

    PA18

    ISENC

    DRV fault input

    PB12

    nFAULT

    DRV sleep input

    PB2

    nSLEEP

    DRV OFF input

    PB6

    DRVOFF

    Ground

    GND

    AGND

  3. Connect the 3 phases of the motor to OUTA, OUTB, and OUTC of the motor connector terminal block on the DRV8317HEVM and the HALLA/B/C, Hall power, and Hall GND signals to the Hall connector block. Note: The user should identify the correct phases of motor from motor datasheets, this will vary from motor to motor.

  4. Connect the positive and negative of the power supply to VM and PGND/AGND of the power connector terminal block to the DRV8317HEVM. Don’t turn on the power supply output.

  5. Connect a Micro-USB cable from the LP-MSPM0G3507 to the PC.

  6. Set the power supply to a motor voltage within the DRV8317 specifications. Turn on the power supply. The green VM LED on the DRV8317HEVM should turn on.

  7. Once all the setup is done, spin the motor using the software or GUI. Refer to Software User Guide or GUI User Guide for more details.