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Overview
1
Overview
The DRV8899-Q1 customer EVM is a platform to support prototyping and evaluation for the DRV8899-Q1,
a medium-voltage dual H-bridge driver for stepper-driving applications. The DRV8899-Q1 drives a single
bipolar stepper with microstep settings ranging from full-stepping to 1/256 resolution with internally-
regulated microstep levels. It provides a variety of programmable decay settings.
The EVM uses an MSP430™ microcontroller and a USB interface chip to manage communication from
the GUI software application installed on a PC computer with Windows
to the MSP430 to control the device signals, monitor faults, read and write SPI registers, and drive a
stepper motor by issuing the step commands at the desired rate. This document describes the software
and tools used to evaluate DRV8899-Q1 device for stepper motor driving on the DRV8899-Q1 EVM.
2
Hardware and Software Setup
The hardware (HW) and software (SW) tools that follow are required for the evaluation of DRV8899-Q1:
•
DRV8899-Q1 EVM
•
Stepper motor
•
Voltage supply from 4.5 V to 45 V
This document only describes the installation and usage of the DRV8899-Q1 EVM GUI. For additional
details on hardware connections refer to the
3
GUI Application
3.1
Installation
Installation (For Desktop Version Only)
•
Download the installable DRV8899-Q1_x.y.z_installer_win.zip file (x.y.z is the GUI revision number).
•
Extract the zip file.
•
Double click on the installer to install the GUI Application. During the first installation, the installer
prompts for installation of Cloud Agent. Install it.
3.2
Getting Started with DRV8899-Q1EVM GUI
The DRV8899-Q1 EVM GUI and DRV8899-Q1 EVM allows the user to configure various settings required
for stepper motor driving. The DRV8899-Q1 EVM GUI lets the user adjust the motor speed, control the
direction, control the step movement, configure various device settings, and monitor the device status.
Perform the following steps to begin using the GUI:
•
Connect the stepper motor to the EVM.
•
Plugin the micro-USB cable to the PC.
•
Enable the motor power supply. For additional details on hardware connections refer to the
Q1 EVM User's
Click on DRV8899-Q1 EVM GUI shortcut either on the desktop or from the Start menu to run the GUI
application.
3.3
Use the DRV8899-Q1EVM GUI
•
The application opens with launch page shown in
2
DRV8899-Q1 EVM GUI User's Guide
Guide.
Copyright © 2019, Texas Instruments Incorporated
DRV8899-Q1 EVM User's
Figure
1.
SLVUBR6A – October 2019 – Revised October 2019
. The GUI sends serial commands
®
Guide.
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