UART

Files
file	k_uart.h
	UART interface.

Data Structures
struct	uart_conf
	Usart configuration, to be used with the uart_init call. More...

Typedefs
typedef void(*	uart_callback_t) (void *extra_data, uint8_t *buf, int len, void *pxTaskWoken)
	In order to catch incoming chars use the callback. More...

Functions
void	uart_init (struct uart_conf *conf)
	Initialise UART with the uart_conf data structure. More...
void	uart_set_callback (void *arg, uart_callback_t callback)
void	uart_insert (char c, void *pxTaskWoken)
	Insert a character to the RX buffer of a uart. More...
void	uart_putc (char c)
	Polling putchar. More...
void	uart_putstr (char *buf, int len)
	Send char buffer on UART. More...
char	uart_getc (void)
	Buffered getchar. More...
int	uart_messages_waiting (int handle)

Typedef Documentation

typedef void(* uart_callback_t) (void *extra_data, uint8_t *buf, int len, void *pxTaskWoken)

In order to catch incoming chars use the callback.

Only one callback per interface.

Parameters

handle	uart[0,1,2,3]
callback	function pointer

Function Documentation

char uart_getc

(

void

)

Buffered getchar.

Parameters

handle

uart[0,1,2,3]

Returns

Character received

void uart_init

(

struct uart_conf *

conf

)

Initialise UART with the uart_conf data structure.

Parameters

uart_conf

full configuration structure

void uart_insert	(	char	c,
		void *	pxTaskWoken
	)

Insert a character to the RX buffer of a uart.

Parameters

handle	uart[0,1,2,3]
c	Character to insert

int uart_messages_waiting

(

int

handle

)

void uart_putc

(

char

c

)

Polling putchar.

Parameters

handle	uart[0,1,2,3]
c	Character to transmit

void uart_putstr	(	char *	buf,
		int	len
	)

Send char buffer on UART.

Parameters

handle	uart[0,1,2,3]
buf	Pointer to data
len	Length of data

void uart_set_callback	(	void *	arg,
		uart_callback_t	callback
	)