include/uart/uart_xmega.h File Reference

XMEGA UART definitions. More...

#include <assert.h>
#include <types.h>
#include <chip/uart.h>
#include <regs/xmega_usart.h>

Go to the source code of this file.

Defines
UART enable/disable flags
#define	UART_FLAG_TX   (1 << 0)
	Enable/disable transmitter.
#define	UART_FLAG_RX   (1 << 1)
	Enable/disable receiver.
Transmitting Data
#define	uart_transmit_is_complete(uart_id)   uart_transmit_is_complete_priv(uart_t uart)
	Tests if all data has been transmitted.
#define	uart_tx_buffer_is_empty(uart_id)   uart_tx_buffer_is_empty_priv(uart_get_regs(uart_id))
	Test if tx buffer is empty.
#define	uart_send_byte(uart_id, data)   uart_send_byte_priv(uart_get_regs(uart_id), data)
	Send data without checking if the pipline is empty.
#define	uart_put_byte(uart_id, data)   uart_put_byte_priv(uart_get_regs(uart_id), data)
	Sends data if room is left in the tx pipeline.
Receiving Data
#define	uart_rx_buffer_is_full(uart_id)   uart_rx_buffer_is_full_priv(uart_get_regs(uart_id))
	Test if rx buffer is full.
#define	uart_get_byte(uart_id, data)   uart_get_byte_priv(uart_get_regs(uart_id), data)
	Reads data if data is available in the rx buffer.
Initialization
#define	uart_enable(uart_id, flags)
	Enable UART transmitter and/or receiver.
Functions
void	uart_init_priv (uart_t uart, uart_flags_t flags)
	Initializes the UART.
static bool	uart_transmit_is_complete_priv (uart_t uart)
	Tests if all data has been transmitted.
static bool	uart_tx_buffer_is_empty_priv (uart_t uart)
	Test if tx buffer is empty.
static bool	uart_rx_buffer_is_full_priv (uart_t uart)
	Test if rx buffer is full.
static void	uart_send_byte_priv (uart_t uart, uint8_t data)
	Send data without checking if the pipline is empty.
static bool	uart_put_byte_priv (uart_t uart, uint8_t data)
	Send data if transmitter pipeline is empty.
static bool	uart_get_byte_priv (uart_t uart, uint8_t *data)
	Read data if data is available.

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Detailed Description

XMEGA UART definitions.

Copyright (C) 2009 Atmel Corporation. All rights reserved.

Definition in file uart_xmega.h.