board.h
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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.
*/
/**
* @defgroup boards_saml21-xpro Atmel SAM L21 Xplained Pro
* @ingroup boards
* @brief Support for the Atmel SAM L21 Xplained Pro board.
* @{
*
* @file
* @brief Board specific definitions for the Atmel SAM L21 Xplained Pro board.
*
* @author Thomas Eichinger <thomas.eichinger@fu-berlin.de>
* @author Sebastian Meiling <s@mlng.net>
*/
#ifndef BOARD_H
#define BOARD_H
#include "cpu.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name LED pin definitions and handlers
* @{
*/
#define LED0_PIN GPIO_PIN(1, 10)
#define LED_PORT PORT->Group[1]
#define LED0_MASK (1 << 10)
#define LED0_ON (LED_PORT.OUTCLR.reg = LED0_MASK)
#define LED0_OFF (LED_PORT.OUTSET.reg = LED0_MASK)
#define LED0_TOGGLE (LED_PORT.OUTTGL.reg = LED0_MASK)
/** @} */
/**
* @name SW0 (Button) pin definitions
* @{
*/
#define BTN0_PORT PORT->Group[PA]
#define BTN0_PIN GPIO_PIN(PA, 2)
#define BTN0_MODE GPIO_IN_PU
/** @} */
/**
* @brief Initialize board specific hardware, including clock, LEDs and std-IO
*/
void board_init(void);
#ifdef __cplusplus
}
#endif
#endif /* BOARD_H */
/** @} */