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/*
* Copyright (C) 2014 Freie Universität Berlin
*
* 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 board_udoo
* @{
*
* @file board.c
* @brief Board specific implementations for the UDOO board
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdio.h>
#include "board.h"
#include "system_sam3xa.h"
void led_init(void);
void board_init(void)
{
/* initialize core clocks via STM-lib given function */
SystemInit();
/* initialize the CPU */
cpu_init();
/* initialize the boards LEDs */
led_init();
}
/**
* @brief Initialize the boards on-board LED (Amber LED "L")
*
* The LED initialization is hard-coded in this function. As the LED is soldered
* onto the board it is fixed to its CPU pins.
*
* The LED is connected to the following pin:
* - LED: PB27
*/
void led_init(void)
{
/* enable PIO control of pin PD27 */
LED_PORT->PIO_PER = LED_PIN;
/* set pin as output */
LED_PORT->PIO_OER = LED_PIN;
/* enable direct write access to the LED pin */
LED_PORT->PIO_OWER = LED_PIN;
/* disable pull-up */
LED_PORT->PIO_PUDR = LED_PIN;
/* clear pin */
LED_PORT->PIO_CODR = LED_PIN;
}