set_port()

This function is defined in <init.c>. The prototype is:

void set_port( unsigned port,
               unsigned mask,
               unsigned data )

This function sets the specified bit(s) of the UART port to the given value (0 or 1). The arguments are:

port

The port you want to write the value to.

mask

The mask for the bit or bits that you want to set.

data

The value that you want to set.