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uart.c File Reference

UART driver with buffer support. More...

#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/signal.h>
#include "buffer.h"
#include "uart.h"

Go to the source code of this file.

Typedefs
typedef void(*	voidFuncPtru08 )(unsigned char)
Functions
void	uartInit (void)
	initializes uart
void	uartInitBuffers (void)
	initializes transmit and receive buffers
void	uartSetRxHandler (void(*rx_func)(unsigned char c))
	redirects received data to a user function
void	uartSetBaudRate (u32 baudrate)
	sets the uart baud rate
cBuffer *	uartGetRxBuffer (void)
	returns pointer to the receive buffer structure
cBuffer *	uartGetTxBuffer (void)
	returns pointer to the transmit buffer structure
void	uartSendByte (u08 txData)
	sends a single byte over the uart
u08	uartReceiveByte (u08 *rxData)
	gets a single byte from the uart receive buffer
void	uartFlushReceiveBuffer (void)
	flushes (deletes) all data from receive buffer
u08	uartReceiveBufferIsEmpty (void)
	returns TRUE/FALSE if receive buffer is empty/not-empty
void	uartAddToTxBuffer (u08 data)
	add byte to end of uart Tx buffer
void	uartSendTxBuffer (void)
	begins transmission of the transmit buffer under interrupt control
	UART_INTERRUPT_HANDLER (SIG_UART_TRANS)
	UART Transmit Complete Interrupt Handler.
Variables
volatile u08	uartReadyTx
	uartReadyTx flag
volatile u08	uartBufferedTx
	uartBufferedTx flag
cBuffer	uartRxBuffer
	uart receive buffer
cBuffer	uartTxBuffer
	uart transmit buffer
unsigned short	uartRxOverflow
	receive overflow counter

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Detailed Description

UART driver with buffer support.

Definition in file uart.c.

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