USART Code für einen ATxmega-basierten Computer. Mehr ...

#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdio.h>
#include <stdint.h>
#include <util/delay.h>
#include "usartx.h"

Include-Abhängigkeitsdiagramm für usartx.c:

Funktionen
static void	_rxcisr (int usartnum)

	ISR (USARTC0_RXC_vect)

	ISR (USARTC1_RXC_vect)

	ISR (USARTD0_RXC_vect)

	ISR (USARTD1_RXC_vect)

	ISR (USARTE0_RXC_vect)

	ISR (USARTF0_RXC_vect)

void	USART_Connect (int usartnum, int streamsel)

static int	USART_getchar (FILE *stream) __attribute__((noinline))

void	USART_Init (uint8_t usartnum, uint8_t bauda, uint8_t baudb)

static int	USART_putchar (char c, FILE *stream) __attribute__((noinline))

Variablen
static volatile unsigned char	inptr [NUM_USARTS] = { 0, 0, 0, 0, 0, 0 }

static volatile unsigned char	outptr [NUM_USARTS] = { 0, 0, 0, 0, 0, 0 }

static volatile unsigned char	queue [NUM_USARTS][QUEUE_SIZE]

static USART_t *	usart [NUM_USARTS] = { &USARTC0, &USARTC1, &USARTD0, &USARTD1, &USARTE0, &USARTF0 }

FILE	usart_out = FDEV_SETUP_STREAM(USART_putchar, NULL, _FDEV_SETUP_WRITE)

FILE	usartin = FDEV_SETUP_STREAM(NULL, USART_getchar, _FDEV_SETUP_READ)

FILE	usartout = FDEV_SETUP_STREAM(USART_putchar, NULL, _FDEV_SETUP_WRITE)

static int	usartsel_err = eUSARTC0

static int	usartsel_in = eUSARTC0

static int	usartsel_out = eUSARTC0

Ausführliche Beschreibung

USART Code für einen ATxmega-basierten Computer.

Datum

03.04.2011 / 03.02.2016

                $Revision: 463 $
                $Date: 2016-04-02 12:14:42 +0200 (Sat, 02 Apr 2016) $

These routines provide support for stream I/O and can be hooked into stdin, stdout, and stderr.

This module provides support for all seven USARTs on the ATxmega256a3 and related devices. For details on using these routines, consult the associated usartx.h header file. http://www.seanet.com/~karllunt/atxmegasource.html

Definiert in Datei usartx.c.


	by Hanna

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