uart.h File Reference

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Functions
int	uart_putchar (int c)
	Writes a single character 'c' to the UART output.
int	uart_puts (const char *s)
	Writes the null-terminated string 's' to the UART output.
int	uart_getchar (void)
	Reads a single character from the UART input.
char	get_uart_input (void)
	Waits for and returns a single character from the UART input.
void	uart_log_putchar (void *arg, char c)
	Writes a single character 'c' to the log output.
int	tstc ()
	Tests whether a character is waiting in the UART input buffer.
int	puts (const char *s)
	Writes the null-terminated string 's' to the standard output.

Function Documentation

get_uart_input()

char get_uart_input

(

void

)

Waits for and returns a single character from the UART input.

Returns

The character that was read.

puts()

int puts ( const char *  s )

extern

Writes the null-terminated string 's' to the standard output.

Parameters

s	The string to be written.

Returns

The number of characters written, excluding the terminating null byte.

tstc()

int tstc

(

)

Tests whether a character is waiting in the UART input buffer.

Returns

1 if a character is waiting, 0 otherwise.

uart_getchar()

int uart_getchar

(

void

)

Reads a single character from the UART input.

Returns

The character that was read.

uart_log_putchar()

void uart_log_putchar	(	void *	arg,
		char	c
	)

Writes a single character 'c' to the log output.

Parameters

arg	A pointer to optional arguments.
c	The character to be written.

uart_putchar()

int uart_putchar

(

int

c

)

Writes a single character 'c' to the UART output.

Parameters

c	The character to be written.

Returns

The character that was written.

uart_puts()

int uart_puts

(

const char *

s

)

Writes the null-terminated string 's' to the UART output.

Parameters

s	The string to be written.

Returns

The number of characters written, excluding the terminating null byte.