The Power Management example demonstrates how to use the Power Management library .

You can find the source code and the project file of the example in the following folder: <InstallFolder>\examples\peripheral\pwr_mgmt

Testing

Test the Power Management Example application by performing the following steps:

1. Compile and program the application.
2. Start a terminal emulator like PuTTY and connect to the used COM port with the following UART settings:
   • Baud rate: 115.200
   • 8 data bits
   • 1 stop bit
   • No parity
   • HW flow control: None
   This example supports four different use cases:

Automatic System OFF

1. After the configured time of inactivity, the application will switch to System OFF state. You can postpone this process by pressing Button 1 or Button 4.
2. This process will be blocked if application is not ready. By default, it is not ready.
3. Pressing Button 1 will toggle the ready status.

Software Reset

1. Pressing Button 3 will reset the application (if it is ready).
2. Pressing Button 1 will toggle the ready status.

Go to System OFF

1. Shortly press Button 2 to immediately switch to System OFF state (if the application is ready), without waiting for timeout.
2. Pressing Button 1 will toggle the ready status.
3. Wake up the application from System OFF by pressing Button 2.
4. Alternatively, you can touch the NFC antenna (if present) with a smartphone or a tablet to wake up the application.

Go and stay in System OFF

1. Press and hold Button 2 to immediately switch to System OFF state (if the application is ready) and stay in it.
2. Pressing Button 1 will toggle the ready status.
3. From this point, the application requires an external reset to restart because the wakeup mechanism is not set up.