Power Management Example

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.