User's Guide
SLVU361B–April 2010–Revised October 2013
CPG004_DRV88xx Evaluation Modules
This document is provided as a supplement to the DRV8802, DRV8812, DRV8813, DRV8814, DRV8824,
DRV8825, DRV8841 and DRV8843 datasheets. It details the hardware implementation of the CPG004
DRV88xxEVM Customer Evaluation Module (EVM). On this document, DRV88xx will be used
interchangeably to refer to any of the aforementioned devices.
Contents
1 Block Diagram ............................................................................................................... 2
1.1 Power Connectors ................................................................................................. 2
1.2 Test Stakes ......................................................................................................... 2
1.3 Jumpers ............................................................................................................. 3
1.4 Motor Outputs ...................................................................................................... 4
2 Installing Drivers And Software ........................................................................................... 5
2.1 Installing the FTDI USB Driver ................................................................................... 5
2.2 Installing the CPG004_DRV88xx Evaluation Board Windows Application Software ...................... 5
2.3 Running the Windows Application Software .................................................................... 5
3 The Windows Application .................................................................................................. 5
3.1 The Menu ........................................................................................................... 7
3.2 DRV88xx GPIO Control Signals ................................................................................. 7
3.3 Updating DAC Output for Current Control (VREFA and VREFB) ........................................... 8
3.4 DC Motor Speed Control (PWM) ................................................................................. 8
3.5 Operating the Stepper Motor (DRV8824) ....................................................................... 9
4 Schematics ................................................................................................................. 12
List of Figures
1 AVREF Select Jumper Configuration .................................................................................... 3
2 BVREF Select Jumper Configuration .................................................................................... 3
3 DECAY Select Jumper Configuration .................................................................................... 4
4 DRV8802-12-13-14 Tab.................................................................................................... 5
5 DRV8824-25 GUI ........................................................................................................... 6
6 DRV8841-43 Tab ........................................................................................................... 6
7 GPIO Control Signals....................................................................................................... 7
8 Current Control.............................................................................................................. 8
9 Duty Cycle Indicator ........................................................................................................ 8
10 PWM Signal on INx Pins................................................................................................... 9
11 Turning the Stepper Motor ............................................................................................... 10
12 Speed Control.............................................................................................................. 10
13 Step Control................................................................................................................ 11
14 Stepper Speed Calculator................................................................................................ 11
List of Tables
1 BVREF Default Jumper Allocation on a Per Device Basis ............................................................ 4
1
SLVU361B–April 2010–Revised October 2013 CPG004_DRV88xx Evaluation Modules
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