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DRV8823EVM 产品设计参考手册 - TI（德州仪器）
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TI（德州仪器）
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开发套件
描述:
TEXAS INSTRUMENTS DRV8823EVM 评估电路板, DRV8823 步进电机驱动器
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DRV8823EVM数据手册
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User's Guide
SLVU350–November 2009
DRV8821/DRV8823 User's Guide
This document is provided as a supplement to the DRV8821/DRV8823 datasheet. It details the hardware
implementation of the CPG003 DRV8821-23EVM-001 Customer Evaluation Module (EVM).
Contents
1 Block Diagram ............................................................................................................... 2
1.1 Power Connectors ................................................................................................. 2
1.2 Test Stakes ......................................................................................................... 2
1.3 Jumpers ............................................................................................................. 3
1.4 Motor Outputs ...................................................................................................... 3
2 Installing Drivers And Software ........................................................................................... 4
2.1 Installing the FTDI USB Driver ................................................................................... 4
2.2 Installing the CPG003_DRV882123-001 Evaluation Board Windows Application Software ............. 4
2.3 Running the Windows Application Software .................................................................... 4
3 The Windows Application .................................................................................................. 5
3.1 The Menu ........................................................................................................... 6
3.2 DRV8821 GPIO Control Signals ................................................................................. 7
3.3 Updating DAC Output for Current Control (VREF) ............................................................ 8
3.4 Operating the Stepper Motor (DRV8821) ....................................................................... 8
3.5 Operating the Motors (DRV8823) .............................................................................. 11
3.6 Updating DAC Output for Reference Voltage ................................................................. 12
4 Schematic .................................................................................................................. 13
List of Figures
1 VREF Select Jumpers (JP1 and JP2).................................................................................... 3
2 DECAY Select Jumpers (JP3 and JP4).................................................................................. 3
3 CPG003_DRV8821-23EVM-001_R1p0.exe Main Screen (DRV8821) .............................................. 5
4 CPG003_DRV8821-23EVM-001_R1p0.exe Main Screen (DRV8823) .............................................. 6
5 Acknowledgement Text Box............................................................................................... 7
6 Control Signals Frame...................................................................................................... 7
7 Current Control Frame ..................................................................................................... 8
8 Turning the Stepper Motor................................................................................................. 9
9 Speed cnotrol Frame ....................................................................................................... 9
10 Step Control Frame ....................................................................................................... 10
11 Motor A and B Frame..................................................................................................... 11
12 Reference Voltage Frame................................................................................................ 12
1
SLVU350–November 2009 DRV8821/DRV8823 User's Guide
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