The nPM Controller circuit on the nPM1300 Evaluation Kit (EK) enables easy interaction with the Power Management Integrated Circuit (PMIC) through the nPM PowerUP app or a terminal.
To enable software control, connect nPM CONTROLLER on J4 to a computer using a compatible USB-C cable (see Minimum requirements). To obtain a successful connection with the PMIC, make sure to power the PMIC first, or perform a power cycle on the nPM Controller. See Connect and use the nPM1300 EK to connect the EK and get started with the nPM PowerUP app.
A green LED (LD4) next to the nPM Controller shows the status of the nPM Controller connection with the PMIC. LED light patterns and nPM Controller status are shown in the following table.
| LED light pattern (LD4) | nPM Controller status | Actions |
|---|---|---|
| Fading on/off | Successful connection with nPM1300 PMIC | Correctly powered PMIC and nPM Controller. No action needed. |
| Toggling on/off | No connection with nPM1300 PMIC | Incorrectly powered. Check if PMIC has power, or power cycle nPM Controller. |