Hardware requirements

  • Mini/micro USB cable

  • LPCXpresso51U68 board

  • Personal Computer

Board settings

No special settings are required.

Prepare the Demo

  1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J6) on the board

  2. Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board.

  4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

The log below shows example output of the RTC driver demo in the terminal window:

RTC example: set up time to wake up an alarm
Current datetime: 2014-12-25 19: 0: 0
Please input the number of second to wait for alarm
The second must be positive value
Alarm will occur at: 2014-12-25 19: 0: 5