Texas Instruments DRV814x-Q1EVM, User Manual, Page: 21 / 22

• MODE In Hardware variant, mode change must occur through jumpers while the GUI WAKE control is
Asleep. See Figure 3-8 . Level 1 is PH/EN Mode, Level 2 is Independent Half-Bridge Mode, and Level 4
is PWM mode, as can be observed in the device datasheet. For Level 4, there is no jumper. The jumper
settings for these Mode changes may be observed in
Section 3.4 . For Independent Half-Bridge Mode, the
user must correctly connect for either High-Side Load or Low-Side Load as can be observed in Figure 5-6 .
• PASSIVE/ACTIVE DIAGNOSTICS The Active Diagnostics controls don't exist on hardware devices. Only the
Passive Diagnostics may be observed.
CAUTION
Driving an incorrectly connected load could result in permanent damage to the device,
fire, or other damage.
When operating the EVM at the maximum device specifications and higher ambient
temperature, external cooling fans may be required to minimize potential fire hazard,
personal injury, or both.
5.3.4 Updating Firmware
Your EVM includes the ability to update the MCU firmware controlling the DRV824x-Q1/ DRV814x-Q1 device
without any additional hardware. There should be a pop-up every time the GUI Driver Control page is selected
after an EVM connection is made and if a new update becomes available as can be seen in
Figure 5-4 .
Figure 5-9. EVM Firmware Update Pop-up
The user can update the EVM to the latest firmware by simply going to File -> Program Device from either the
EVM Home Page or the Driver Control page as shown in
Figure 5-10 .
Figure 5-10. Update Firmware
www.ti.com EVM GUI Operation
SLVUC46A – MARCH 2021 – REVISED JULY 2021
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DRV824x_DRV814x-Q1EVM User’s Guide 21
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