Texas Instruments Laser And Motor Drives DRV8811EVM User Manual
Size:
277.45 Kb
Download

DRV8811EVM

User's Guide

Literature Number: SLVA344A

July 2009–RevisedSeptember 2009

2

SLVA344A–July2009–RevisedSeptember 2009

Submit Documentation Feedback

Contents

1

Introduction.........................................................................................................................

6

 

1.1

Block Diagram .............................................................................................................

6

 

1.2

Power Connectors ........................................................................................................

6

 

1.3

Test Stakes ................................................................................................................

7

 

1.4

Jumpers ....................................................................................................................

7

 

1.5

Motor Outputs .............................................................................................................

7

2

Installing Drivers And Software .............................................................................................

7

 

2.1

Installing the FTDI USB Driver ..........................................................................................

7

 

2.2

Installing the DRV8811 Evaluation Board Windows Application Software ........................................

8

 

2.3

Running the Windows Application Software...........................................................................

8

3

Windows Application............................................................................................................

8

 

3.1

Menu........................................................................................................................

9

 

3.2

DRV8811 GPIO Control Signals ........................................................................................

9

 

3.3

Updating DAC Output for Current Control (VREF/DECAY)........................................................

10

 

3.4

Updating DAC Output for Decay Control (DECAY) .................................................................

10

 

3.5

Operating the Stepper Motor...........................................................................................

10

4

Schematic .........................................................................................................................

12

SLVA344A–July2009–RevisedSeptember 2009

Table of Contents

3

Submit Documentation Feedback

 

 

www.ti.com

 

List of Figures

 

1

VREF SELECT Jumper .....................................................................................................

7

2

DECAY SELECT Jumper ...................................................................................................

7

3

DRV8811_RD_EVM_R1p0.exe Main Screen............................................................................

8

4

Acknowledgement Text Box................................................................................................

9

5

Signals Frame................................................................................................................

9

6

Curent Control Frame......................................................................................................

10

7

Current Control Frame.....................................................................................................

10

8

Step Rate ...................................................................................................................

11

9

Speed Control Frame......................................................................................................

11

10

Step Control Frame ........................................................................................................

12

4

List of Figures

SLVA344A–July2009–RevisedSeptember 2009

Submit Documentation Feedback

User's Guide

SLVA344A–July2009–RevisedSeptember 2009

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).

SLVA344A–July2009–RevisedSeptember 2009

Laser and Motor Drives

5

Submit Documentation Feedback