Evm Gui Operation; Hardware Setup; Launching The Drv3946-Q1Evm Gui Application - Texas Instruments DRV3946-Q1EVM User Manual

EVM GUI Operation

4 EVM GUI Operation

4.1 Hardware Setup

Follow these steps to setup the EVM before launching the GUI:
1. It is advised to make any jumper configuration changes before powering the EVM. Before powering up the
board, selected the IPROPIx_A, IPROPIx_B, and NAD_nFAULT_x headers.
2. Connect the micro-USB cable to J6
connect the EVM USB cable to a computer before applying +VBAT power to the EVM. For standalone EVM
testing a USB connection is not necessary.
3. With the +VBAT external supply outputs disabled, connect +BAT supply to the screw terminals on the EVM
(J14), while observing polarity
4. Energize the +VBAT supply. PVDD LED D3 and 3.3V_MCU LED D7 will illuminate. If VM LED does not
illuminate, verify polarity and confirm that fuses are installed and maintain continuity.
5. After applying the +VBAT supply, LED D6 will illuminate to indicate that there is a successful USB connection
with the computer. If the LED is not on, disconnect the USB cable from the computer, turn off the power
supply, reconnect the USB to the computer, and turn on the supply.
6. The EVM is ready for use with the GUI application
restart may not happen. One example of an instace where a proper firmware restart does not occur is when
disconnecting and reconnecting VM power before the power supply capacitors are fully discharged. If the
Status LED (D1) is not blinking as expected, install the jumper J1 in the RST position and press the reset
push button once. Do not unplug the USB cable while the VM power is active. If the USB cable is unplugged
while the VM power is active, switch off the VM power, wait until it is fully discharged and proceed to step 2.
7. The latest version of the GUI application is bundled with the latest version of the EVM firmware. When using
the GUI application, it is recommended to do a firmware update before selecting and connecting to an EVM
variant. The firmware update procedure is described in the

4.2 Launching the DRV3946-Q1EVM GUI Application

The user experience and steps described below are the same regardless of using the desktop or web version of
the GUI. In order to complete the next steps, it is assumed that the hardware setup steps in the previous section
have already been completed.
1. Launch the GUI application.
2. From the screen referenced in
10 DRV3946-Q1EVM User's Guide
(Figure 2-1). For proper GUI application operation, it is important to
(Figure 2-1).
(Section
Figure 4-1, click on the icon to the right labeled "DRV3946-Q1EVM."
Copyright © 2023 Texas Instruments Incorporated
4.2). In certain situations, a proper firmware
Section 5.1 section of this user's guide.
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SLVUCC8 – OCTOBER 2021
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