6 Firmware and GUI Application
The DRV8329AEVM can implement sensored, sensorless, or Field-oriented control for commutating a 3-phase
Brushless-DC motor. There are two GUIs to support DRV8329A (DRV8329A-EVM-GUI) and DRV8329B
(DRV8329B-EVM-GUI) using sensored trapezoidal commutation with Hall sensor feedback. The GUIs allow
for basic trapezoidal motor control functions such as acceleration, duty cycle control, PWM switching frequency,
MCU dead time insertion, braking, and direction changes. The bus and phase voltage feedback circuits as well
as the integrated CSA provide voltage and current feedback from the motor for over-current and motor voltage
protection.
The following GUIs are available on the
Table 6-1. DRV8329x EVM GUIs available
Variant
GUI
DRV8329A
https://dev.ti.com/gallery/view/BLDC/DRV8329A_EVM_GUI/ver/
1.0.0/
DRV8329B
https://dev.ti.com/gallery/view/BLDC/DRV8329B_EVM_GUI/ver/
1.0.0/
6.1 Connecting to the DRV8329AEVM-GUI
and ensure the LAUNCHXL-F280049C is connected to the PC. Turned on
the supply to power the DRV8329AEVM and LAUNCHXL-F280049C.
Access the
and search for "DRV8329" as shown in
. Click on the GUI for the variant.
Figure 6-1. DRV8329A_EVM_GUI and DRV8329B_EVM_GUI on the Gallery
Accept the readme that appears. The GUI will detect the LAUNCHXL-F280049C and automatically download the
program into the MCU. Once complete, the “Hardware Connected” message appears at the bottom left hand
corner as shown in
.
Figure 6-2. Hardware connected message
The following defaults should appear as shown in
when the GUI is connected:
Direction
– Enabled
PWM Frequency (Hz)
– 20000
MCU Dead Time (ns)
– 0
Firmware and GUI Application
16
DRV8329AEVM User’s Guide
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