The various headers have been
populated with shunts on the default locations which are shown in Figure 1-1 and
Figure 1-2. Confirm
that the shunts are placed in the same location.
Connect micro USB included in
the EVM kit to the EVM micro USB connector (J1).
Connect the other end of the
UCB cable to the PC where the GUI has been installed. See Section 3.2 for GUI
installation instructions.
Connect power supply to J4.
The max power supply is limited by the max voltage specification of the
device which is 12 V. Connect positive terminal to connector labeled "VM"
and negative terminal to connector labeled "GND". Alternatively, the power
supply can be connected with clip wires to the test points labeled "VM" and
"GND" located on either side of the screw connector (J4).
At this point, the board is
alive with D1 ON and D4 (MCU) blinking. If D4 LED is OFF or not blinking,
press on the RESET button S1 to manually reset the MCU.
Set the potentiometer R27 to
set desired VREF voltage. The VREF test point can be probed with voltage
meter to mesure the VREF voltage. The VREF voltage sets the current
regulation limit. Read the DRV8411A data sheet for the current regulation
(ITRIP) limit equation. If no current regulation is needed, set the VREF to
3.3 V. (This step only applies for the DRV8411AEVM).
Now the EVM is ready to be
connected to the GUI. Follow the steps in next section for instructions on
GUI installation.