The TPS55285EVM board can be enabled to work by the following steps:

1. Turn on the power supply.
2. If Vin>5.1V, put JP2 in the ON position to enable the output. If Vin<5.1V, connect EN to an external 3V power supply or adjust R3, R6 resistor values to enable the output.
3. Open the TPS55285EVM GUI.
4. Click the auto connect button on the target address widget (Figure 3-2). This automatically checks for target addresses (0x74, 0x75) and connect the GUI with the device. After the GUI and device are connected, the GUI reads all eight registers and shows a notification (Figure 3-3).
   Figure 3-2 GUI Auto Connect Button
   Figure 3-3 GUI Auto Connect Notification
5. Click the start button. This shows the GUI user interface of TPS55285EVM-053 (Figure 3-4).
   Figure 3-4 GUI User Interface of TPS55285EVM-053
6. Click the Enable button (Figure 3-5). The default output voltage is 5V.
   Figure 3-5 ENABLE Button
7. Set the output voltage, current limit point, and so forth according to the design target. If the maximum load current is ≥ 5A, then uncheck the Enable Current Limit check box or increase the current limit value (Figure 3-6).
   Figure 3-6 Output Current Limit Point Setting