Texas Instruments DRV8834EVM, Руководство пользователя

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Block Diagram
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4 SLVU701B – March 2012 – Revised July 2019
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DRV8834 Evaluation Module
2.3 Jumpers
The DRV8834EVM module contains three 2-pin jumpers which the user can remove in order modify
certain aspects of configuration.
• JP1: Place a shunt to enable the D1 LED signaling of any fault occurrence.
• JP3: Place a shunt to allow 3.3-V supply to the microcontroller. Remove the shunt to disable MSP430
microcontroller and use external microcontroller of choice.
• JP4: Place a shunt to provide VM power to the LDO. Remove to disconnect all VM loading except
DRV8834 device.
2.4 Switches
A series of switches allow the proper selection of analog input to configure the reference voltage and
decay set points.
Table 1. Switches
SWITCH NAME DESCRIPTION
BDECAY SEL
Selects Decay B source to be MSP430 GPIO (only HI or LO), externally
supplied or derived from the R1 potentiometer.
ADECAY SEL
Selects Decay A source to be MSP430 GPIO (only HI or LO), externally
supplied or derived from the R2 potentiometer.
BVREF SEL
Selects Reference Voltage B source to be same as VREFA (used on internal
indexer mode), MSP430 DAC, externally supplied or derived from the R7
potentiometer.
AVREF SEL
Selects Reference Voltage A source to be MSP430 DAC, externally supplied or
derived from the R6 potentiometer.
Each switch position is properly documented on the board’s top layer overlay silk screen.
2.5 Motor Outputs
There are two ways of connecting the dual brushed DC motor or the single bipolar stepper motor into the
DRV8834 evaluation module: four pin header (J2) or four position terminal block (J4).
3 GUI Software Installation
The following section explains the location of files and the procedure for installing the software correctly.
NOTE: Ensure that no USB connections are made to the EVM until the installation is completed.
The installer will also install LabVIEW RTE 2014 and FTDI Driver, along with the GUI.
3.1 System Requirements
• Supported OS – Windows 7 (32 Bit, 64 Bit). The window text size should be Smaller-100% (Default)
• Recommended RAM - 4 GB or higher
• Recommended CPU Operating Speed – 3.3 GHz or higher
3.2 Installation Procedure
The following procedure helps you install the DRV8834 GUI
1. Double click on the Setup_DRV8834_EVM.exe as shown in Figure 2 .