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NOTE: Ensure that the GUI "exe" is exactly two levels below the GUI Composer "webapps" folder.
The GUI will not start if this is incorrect. The path should look similar to this
"C:\ti\guicomposer\webapps\BOOST-DRV8848_GUIvX.X\BOOST-DRV8848_GUIvX.X.exe".
If a non-default installation directory was selected in Step 1, the top-level directory may differ.
4.4
Spinning the Brushed Motor
After a successful launch of the BOOST-DRV8848_GUIvX.X.exe, the screen in
A small period of time may be needed 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 (X's
disappear), a connection issue may have occurred. Try restarting the application.
4.4.1
Quick Start
1. Set the nSLEEP pin high in order to enable the DRV8848 device.
2. If you want to operate just one motor with twice the output current of the DRV8848, switch to Parallel
Mode. The device operates in Normal Mode per default. In Parallel Mode, a jumper must be placed
on J3.
3. Ensure the Current Limit is set for your motor requirements. The Current Limit can be adjusted with
the VREF potentiometer (R1).
4. Adjust the speed of the attached motor by sliding the bars for the PWM duty cycle.
5. Choose the decay mode and the direction of the motor by setting the respective buttons DECAY and
DIR for the desired motor.
SLVUAE1 – December 2014
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Figure 13. BOOST-DRV8848 GUI
Copyright © 2014, Texas Instruments Incorporated
Brushed Motor Demo Application
Figure 13
should pop up.
BOOST-DRV8848
11
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