/*
 * 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.
 */

/**
 * @defgroup    board_samr21-xpro Atmel SAM R21 Xplained Pro
 * @ingroup     boards
 * @brief       Support for the Atmel SAM R21 Xplained Pro board.
 * @{
 *
 * @file        board.h
 * @brief       Board specific definitions for the Atmel SAM R21 Xplained Pro board.
 *
 * @author      Thomas Eichinger <thomas.eichinger@fu-berlin.de>
 */

#ifndef __BOARD_H
#define __BOARD_H

#include "cpu.h"

/**
 * Define the nominal CPU core clock in this board
 */
#define F_CPU               (48000000UL)

/**
 * Assign the hardware timer
 */
#define HW_TIMER            TIMER_0

/**
 * @name Define UART device and baudrate for stdio
 * @{
 */
#define STDIO               UART_0
#define STDIO_BAUDRATE      (115200U)
#define STDIO_BUFSIZE       (64U)
/** @} */

/**
 * @name LED pin definitions
 * @{
 */
#define LED_PORT            PORT->Group[0]
#define LED_PIN             PORT_PA19
/** @} */

/**
 * @name Macros for controlling the on-board LEDs.
 * @{
 */
#define LED_ON              (LED_PORT.OUTCLR.reg = LED_PIN)
#define LED_OFF             (LED_PORT.OUTSET.reg = LED_PIN)
#define LED_TOGGLE          (LED_PORT.OUTTGL.reg = LED_PIN)

/* for compatability to other boards */
#define LED_GREEN_ON        /* not available */
#define LED_GREEN_OFF       /* not available */
#define LED_GREEN_TOGGLE    /* not available */
#define LED_ORANGE_ON       /* not available */
#define LED_ORANGE_OFF      /* not available */
#define LED_ORANGE_TOGGLE   /* not available */
#define LED_RED_ON          LED_ON
#define LED_RED_OFF         LED_OFF
#define LED_RED_TOGGLE      LED_TOGGLE
/** @} */

/**
 * @brief Initialize board specific hardware, including clock, LEDs and std-IO
 */
void board_init(void);

#endif /** __BOARD_H */
/** @} */