The nPM Controller circuit on the nPM2100 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. To connect the EK and start using the nPM PowerUP, see Connect and use the nPM2100 EK.
A green LED (LD1) next to the nPM Controller circuit shows the status of the nPM Controller and connection with the PMIC. The following table shows the LED light patterns and EK status.
| LED | LED status | EK status | Actions |
|---|---|---|---|
| LD1 (green) | Fading on and off | Successful connection with nPM Controller | Correctly powered nPM Controller. No action needed. |
| Blinking rapidly | No connection with nPM2100 PMIC | Incorrectly powered. Check if the PMIC has power or power cycle nPM Controller by unplugging and then reconnecting the USB cable. | |
| Off | nPM Controller not powered | Check if the EK is correctly powered through J4. |