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80cf8389a8
Uno and Duemilanove(atmega328p version) are nearly the same boards. The only difference is that the Duemilanove use an FTDI usb chip, while the Uno use an Atmel which acts as USB/Serial converter. All of the code needed to support these boards is in arduino-common.
85 lines
1.8 KiB
C
85 lines
1.8 KiB
C
/*
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* Copyright (C) 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
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* 2015 Kaspar Schleiser <kaspar@schleiser.de>
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* 2016 Laurent Navet <laurent.navet@gmail.com>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup boards_arduino-common
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* @{
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*
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* @file
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* @brief Board specific implementations for the arduino Uno
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* @brief and Duemilanove boards.
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*
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* @author Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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* @author Laurent Navet <laurent.navet@gmail.com>
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*
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* @}
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*/
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#include <stdio.h>
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#include <avr/io.h>
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#include "board.h"
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#include "cpu.h"
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#include "uart_stdio.h"
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void led_init(void);
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void SystemInit(void);
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static int uart_putchar(char c, FILE *stream);
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static int uart_getchar(FILE *stream);
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static FILE uart_stdout = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
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static FILE uart_stdin = FDEV_SETUP_STREAM(NULL, uart_getchar, _FDEV_SETUP_READ);
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void board_init(void)
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{
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/* initialize stdio via USART_0 */
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SystemInit();
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/* initialize the CPU */
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cpu_init();
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/* initialize the board LED (connected to pin PB5) */
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DDRB |= (1 << DDB5);
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PORTB &= ~(1 << 5);
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irq_enable();
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}
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/**
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* @brief Initialize the System, initialize IO via UART_0
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*/
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void SystemInit(void)
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{
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/* initialize UART_0 for use as stdout */
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uart_stdio_init();
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stdout = &uart_stdout;
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stdin = &uart_stdin;
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/* Flush stdout */
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puts("\f");
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}
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static int uart_putchar(char c, FILE *stream)
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{
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(void) stream;
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uart_stdio_write(&c, 1);
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return 0;
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}
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int uart_getchar(FILE *stream)
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{
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(void) stream;
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char c;
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uart_stdio_read(&c, 1);
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return (int)c;
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}
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