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100 lines
2.1 KiB
C
100 lines
2.1 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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* 2018 Matthew Blue <matthew.blue.neuro@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_mega-xplained
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* @{
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*
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* @file
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* @brief Board specific implementation for the Mega Xplained
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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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* @author Matthew Blue <matthew.blu.neuro@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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#include "periph/gpio.h"
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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 void led_init(void);
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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_1 */
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SystemInit();
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/* initialize the CPU */
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cpu_init();
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/* initialize the LEDs */
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led_init();
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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_1
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*/
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void SystemInit(void)
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{
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/* initialize UART_1 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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/**
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* @brief Initialize the on-board LEDs
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*/
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void led_init(void)
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{
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/* LED0,2 currently unsupported due to lack of GPIO_OD support */
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LED1_ENABLE_PORT;
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LED1_OFF;
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LED3_ENABLE_PORT;
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LED3_OFF;
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}
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