5. Set the lab supply for 12 V and enable output on lab supply. If the unit displays current consumption, there
should be approximately 20 mA drawn from the lab supply at this state.
6. Verify the 3V3 LED D5 and VM LED D4 are illuminated. The nFAULT LED D7 may flash momentarily when
VM power is switched on.
7. Verify MCU_STATUS LED D6 is blinking at approximately 1 Hz. If the STATUS LED is not blinking perform
a firmware reset using the push button S1 with jumper J27 in 1-2 RST position. The MCU_STATUS LED D6
will blink now if the EVM hardware is functioning normally
8. The EVM is ready to be used with the GUI application (
Launching the DRV84x2_DRV82x2_DRV89x2-EVM
). In certain situations, such as while disconnecting and reconnecting VM power before the
power supply capacitors are fully discharged a proper firmware reset can fail to happen. A proper reset is
indicated by the STATUS LED D6 blinking at a rate of approximately 1 Hz. If the Status LED is not blinking
as expected, press the reset push button once with jumper J27 installed in the RST position.
9. Do not unplug the USB cable while the VM power is active. If you do, switch off the VM power, wait until the
VM power is fully discharged and proceed to step 2. The latest version of the GUI application is bundled with
the latest version of the EVM firmware.
10. A firmware update is suggested before selecting and connecting to an EVM variant using the GUI
application. The firmware update procedure is described in the
section of this User's
Guide.
Hardware Setup
12
DRV84x2_DRV82x2_DRV89x2-EVM User's Guide
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