nRF51 SDK - S110 SoftDevice
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The UART Example demonstrates basic UART usage for communicating with a PC terminal. It transmits and receives data through the configured pins as a serial device. The configured pins must be redirected to a COM port. Terminal programs (for example PUTTY) can listen to this COM port through a terminal session.
When the application starts, it transmits "START: " through the serial device using simple_uart_putstring. This will be output on the terminal. If you type characters on the terminal, they are transmitted to the application through simple_uart_get. If you type an exit character 'q' or 'Q', the program transmits "EXIT!" on a new line and ends into an infinite loop.
This example can be used for any UART connection, not only COM ports. COM port redirection is used for visual verification.
The name of the example is uart_pca10028. If you are not using the Keil Pack Installer, you can find the source code and project file of the example in the following folder: <InstallFolder>\Nordic\nrf51\example\peripheral\uart
Test the UART Example application by performing the following steps: