Texas Instruments Evaluation Module for DRV8842 DRV8842EVM DRV8842EVM 数据表
产品代码
DRV8842EVM
User
'
s Guide
SLVU410
–
April 2011
CPG005_DRV88xx Evaluation Modules
This document is provided as a supplement to the DRV8840 and DRV8842 datasheets. It details the
hardware implementation of the CPG005_DRV88xxEVM Customer Evaluation Module (EVM). On this
document, DRV88xx will be used interchangeably to refer to any of the aforementioned devices.
hardware implementation of the CPG005_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
...............................................................................................................
1.1
Power Connectors
.................................................................................................
1.2
Test Stakes
.........................................................................................................
1.3
Jumpers
.............................................................................................................
1.4
Motor Outputs
......................................................................................................
2
Installing Drivers And Software
...........................................................................................
2.1
Installing the FTDI USB Driver
...................................................................................
2.2
Installing the CPG004_DRV88xx Evaluation Board Windows Application Software
......................
2.3
Running the Windows Application Software
....................................................................
3
The Windows Application
..................................................................................................
3.1
The Menu
...........................................................................................................
3.2
DRV88xx GPIO Control Signals
.................................................................................
3.3
Updating DAC Output for Current Control (VREFA and VREFB)
...........................................
3.4
DC Motor Speed Control (PWM)
.................................................................................
4
Schematic
....................................................................................................................
List of Figures
1
AVREF Select Jumper Configuration
....................................................................................
2
DECAY Select Jumper Configuration
....................................................................................
3
DRV8840 Tab
...............................................................................................................
4
DRV8842 Tab
...............................................................................................................
5
GPIO Control Signals
.......................................................................................................
6
Current Control
..............................................................................................................
7
PWM Control
................................................................................................................
1
SLVU410
–
April 2011
CPG005_DRV88xx Evaluation Modules
Copyright
©
2011, Texas Instruments Incorporated