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Stepper Motor Demo Application
4.4
Spinning Your Stepper Motor
After a successful launch of the BOOST-DRV8711_GUIvX.X.exe,
period of time before the GUI connects and the GUI Widgets populate (red X's appear on the widgets
while the GUI is connecting). If the GUI does not load after a few minutes (the X's disappear), a
connection issue may have occurred and TI recommends restarting the application.
4.4.1
Quick Start
1. Set Your Full Scale Current level appropriately by adjusting the TORQUE and ISGAIN settings. Your
Full Scale Current level is determined by your stepper motor's current rating and power supply
capability. Click the Set All button after choosing the appropriate settings.
2. Select your Step Mode. This determines the level of microstepping applied to the motor.
3. Set the nSLEEP pin high to bring the DRV8711 out of sleep mode. The DRV8711 now begins
regulating current.
4. Adjust the Stepper Motion Profile parameters to the desired values. The units are Pulses Per
Second, otherwise known as Steps Per Second.
5. Enable the Speed Profile or Step # Profile button depending on the desired mode.
The BOOST-DRV8711 GUI provides two tabs. The first tab controls the Stepper Motor and the second tab
sets the registers of the DRV8711.
10
BOOST-DRV8711
Figure 11. BOOST-DRV8711 GUI Screen
Copyright © 2014, Texas Instruments Incorporated
Figure 11
pops up. It may take a small
SLVU967 – May 2014
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