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/*
* Copyright (C) 2014 Freie Universitรคt Berlin, Hinnerk van Bruinehsen
* 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup boards_arduino-mega2560
* @{
*
* @file
* @brief Board specific implementations for the Arduino Mega 2560 board
*
* @author Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
* @author Kaspar Schleiser <kaspar@schleiser.de>
*
* @}
*/
#include <stdio.h>
#include <avr/io.h>
#include "board.h"
#include "cpu.h"
#include "uart_stdio.h"
void led_init(void);
void SystemInit(void);
static int uart_putchar(char c, FILE *stream);
static int uart_getchar(FILE *stream);
static FILE uart_stdout = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
static FILE uart_stdin = FDEV_SETUP_STREAM(NULL, uart_getchar, _FDEV_SETUP_READ);
void board_init(void)
{
/* initialize stdio via USART_0 */
SystemInit();
/* initialize the CPU */
cpu_init();
/* initialize the board LED (connected to pin PB7) */
DDRB |= (1 << DDB7);
PORTB &= ~(1 << 7);
irq_enable();
}
/**
* @brief Initialize the System, initialize IO via UART_0
*/
void SystemInit(void)
{
/* initialize UART_0 for use as stdout */
uart_stdio_init();
stdout = &uart_stdout;
stdin = &uart_stdin;
/* Flush stdout */
puts("\f");
}
static int uart_putchar(char c, FILE *stream)
{
(void) stream;
uart_stdio_write(&c, 1);
return 0;
}
int uart_getchar(FILE *stream)
{
(void) stream;
char c;
uart_stdio_read(&c, 1);
return (int)c;
}
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