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The UART driver simplifies reading and writing to any of the UART * peripherals on the board with multiple modes of operation and performance. * These include blocking, non-blocking, and polling as well as text/binary * mode, echo and return characters. The board's UART pins must * be configured before initializing the UART driver. The application * initializes the UART driver by calling UART_init() and is then ready to * open a UART by calling UART_open(), passing in a UART parameters data * structure.
