RTC - Simple RTC
AmebaD [AMB21 / AMB22 / AMB23 / BW16] x 1
This example demonstrates how to use the RTC library methods. This function describes how to use the RTC API. The RTC function is implemented by an independent BCD timer/counter.
Select the correct Ameba development board from the Arduino IDE: “Tools” → “Board”.
Then open the “RTC” example from:
"File" → "Examples" → "AmebaRTC" → "RTC":
Upon successfully upload the sample code and press the reset button, this example will print out time information since the user initialized time every second in the Serial Monitor.
 Simple RTC example from Arduino Tutorials: