DRV8811评估板.pdfVIP

DRV8811EVM Users Guide Literature Number: SLVA344B July 2009– Revised February 2011 2 SLVA344B– July 2009 – Revised February 2011 Submit Documentation Feedback © 2009–2011, Texas Instruments Incorporated 1 Introduction 6 1.1 Block Diagram 6 1.2 Power Connectors 6 1.3 Test Stakes 6 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 7 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 SLVA344B– July 2009 – Revised February 2011 Table of Contents 3 Submit Documentation Feedback © 2009–2011, Texas Instruments Incorporated List of Figures 1 VREF SELECT Jumper