Texas Instruments DRV8811 User Manual
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Texas Instruments DRV8811 User Manual

Texas Instruments DRV8811 User Manual

Laser and motor drives
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Laser and Motor Drives
This document is provided as a supplement to the
implementation of the DRV8811 customer evaluation module (EVM).
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SLVA344C - July 2009 - Revised July 2019
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Copyright © 2009-2019, Texas Instruments Incorporated
SLVA344C - July 2009 - Revised July 2019
DRV8811
datasheet. It details the hardware
Contents
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List of Figures
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User's Guide
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Laser and Motor Drives

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Summary of Contents for Texas Instruments DRV8811

  • Page 1: Table Of Contents

    SLVA344C – July 2009 – Revised July 2019 Laser and Motor Drives This document is provided as a supplement to the DRV8811 datasheet. It details the hardware implementation of the DRV8811 customer evaluation module (EVM). Contents ........................Introduction ....................... Block Diagram ....................
  • Page 2 Step Rate ...................... Speed Control Frame ......................Step Control Frame Trademarks All trademarks are the property of their respective owners. Laser and Motor Drives SLVA344C – July 2009 – Revised July 2019 Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 3: Introduction

    MSP430F1612 Power Connectors The DRV8811 customer EVM uses a combination of terminal blocks and test clips for the application/monitoring of power. The only power rail the user must supply is VM for the device’s power stage. VDD for logic levels is internally generated from the USB connection.

  • Page 4: Jumpers

    MSP430’s digital to analog converter channel 1 (DAC1). Motor Outputs There are three ways of connecting the bipolar stepper motor into the DRV8811 EVM: four pin header (J2), four position terminal block (J3) or test clips. Each connection style offers identical connectivity to the device’s output terminals.

  • Page 5: Setup_Drv8811_Evm.exe

    • Recommended CPU Operating Speed – 3.3 GHz or higher 2.2.2 Installation Procedure The following procedure helps you install the DRV8811 GUI 1. Double click on the Setup_DRV8811_EVM.exe as shown in Figure Figure 3. Setup_DRV8811_EVM.exe 2. The screen shown in Figure 4 appears, indicating installer initialization.

  • Page 6: Installation Initialization

    Please read through the agreement carefully and enable the “I Accept the License Agreement” radio button and press the Next button. Laser and Motor Drives SLVA344C – July 2009 – Revised July 2019 Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 7: Ni License Agreement

    Components to Install and Click Next to continue installation. The LabVIEW RTE component checks out if the LabVIEW RTE 2014 is already installed on the PC. SLVA344C – July 2009 – Revised July 2019 Laser and Motor Drives Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 8: Component Selection

    Figure 9. Configure Proxy 8. A screen as shown in Figure 10 appears. Click Next to begin the installation. Laser and Motor Drives SLVA344C – July 2009 – Revised July 2019 Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 9: Ready To Install

    Figure 11. Downloading RTE 10. Once the download completes, LabVIEW begins with the self-extraction as shown in Figure SLVA344C – July 2009 – Revised July 2019 Laser and Motor Drives Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 10: Labview Rte Self Extraction

    Figure 13. LabVIEW RTE Installation Initialization 12. A display as shown in Figure 14 appears which indicates the progress of LabVIEW RTE installation. Laser and Motor Drives SLVA344C – July 2009 – Revised July 2019 Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 11: Installation Of Labview Rte In Progress

    Figure 14. Installation of LabVIEW RTE in Progress 13. Once the LabVIEW RTE 2014 is installed, DRV 8811 EVM GUI component installs. 14. After DRV8811 Installation, FTDI Installation begins. A screen as shown in Figure 15 appears, click Extract to proceed.

  • Page 12: Ftdi Installation Initialization

    Figure 15. FTDI Installation Initialization 15. A screen as shown in Figure 16 appears, click Next to proceed. Figure 16. Driver Installation Wizard Laser and Motor Drives SLVA344C – July 2009 – Revised July 2019 Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 13: License Agreement For Ftdi Driver

    Click on Next. Figure 17. License Agreement for FTDI Driver 18. Click Finish to complete the Driver Installation. SLVA344C – July 2009 – Revised July 2019 Laser and Motor Drives Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 14: Driver Installation Completion

    Installing Drivers And Software www.ti.com Figure 18. Driver Installation Completion Figure 19 appears denoting the completion of DRV8811 EVM GUI Installation. Click Finish. Figure 19. Installation Complete 20. A Readme window as shown in Figure 20 appears displaying the link for LV 2014 RTE.

  • Page 15: Running The Windows Application Software

    GUI in your Programs or its installation directory. Windows Application The DRV8811 Windows Application is the software counterpart for the DRV8811 EVM. It is in charge of connecting to the MSP430 microcontroller via a USB connection which in turn selects the proper logic state for the DRV8811 control signals.

  • Page 16: Drv8811Evm-001_R1P0.Exe Main Screen

    Figure 21 shows the GUI main screen. It contains menu items to configure and enable/disable the serial port, frames with GPIO control for the DRV8811 control signals, stepper motor control for start/stop and speed, and current/decay control through the MSP430 DACs.

  • Page 17: Menu

    – Debug log - The Debug log option enables to log all the activities of the user. If that is not selected, only the high-level operations log. • View - Select View-> Schematics->DRV8811 to view the GUIs schematics Figure 24. Schematic SLVA344C – July 2009 – Revised July 2019...

  • Page 18: Drv8811 Gpio Control Signals

    Once the application is communicating with the interface board, the control signals can be actuated by checking or un-checking check boxes on the Signals frame. Laser and Motor Drives SLVA344C – July 2009 – Revised July 2019 Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...

  • Page 19: Updating Dac Output For Current Control (Vref/Decay)

    Figure 28. Curent Control Frame The MSP430F1612 12-bit DAC channel 0 is connected to the DRV8811 VREF analog input. Changing the DAC digital value from 0 to 4095, changes the analog voltage at the VREF/DECAY pin from 0 V to 2.5 V respectively.

  • Page 20: Operating The Stepper Motor

    Figure 29. Current Control Frame The MSP430F1612 12 bit DAC channel 1 is connected to the DRV8811 DECAY analog input. Changing the DAC digital value from 0 to 4095, changes the analog voltage at the DECAY pin from 0 V to 2.5 V respectively.

  • Page 21: Speed Control Frame

    0 to 65535 and the motor will move that number of steps at the speed specified on the PPS text box. No acceleration or deceleration takes place under this function. SLVA344C – July 2009 – Revised July 2019 Laser and Motor Drives Submit Documentation Feedback Copyright © 2009–2019, Texas Instruments Incorporated...
  • Page 22 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2022, Texas Instruments Incorporated...

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Drv8811evm-001

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