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bc5ac92cff
The LED on the sam-xpro boards is active low, so we have to turn it off manually, otherwise it's always on.
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* Copyright (C) 2014 Freie Universität Berlin
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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_samr21-xpro
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* @{
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*
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* @file
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* @brief Board specific implementations for the Atmel SAM R21 Xplained
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* Pro board
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*
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* @author Thomas Eichinger <thomas.eichinger@fu-berlin.de>
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*
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* @}
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*/
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#include "board.h"
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#include "periph/gpio.h"
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void board_antenna_config(uint8_t antenna)
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{
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if (antenna == RFCTL_ANTENNA_EXT){
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gpio_set(RFCTL1_PIN);
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gpio_clear(RFCTL2_PIN);
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}
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else if (antenna == RFCTL_ANTENNA_BOARD){
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gpio_clear(RFCTL1_PIN);
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gpio_set(RFCTL2_PIN);
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}
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}
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void board_init(void)
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{
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/* initialize the on-board LED */
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gpio_init(LED0_PIN, GPIO_OUT);
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LED0_OFF;
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/* initialize the on-board antenna switch */
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gpio_init(RFCTL1_PIN, GPIO_OUT);
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gpio_init(RFCTL2_PIN, GPIO_OUT);
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/* set default antenna switch configuration */
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board_antenna_config(RFCTL_ANTENNA_DEFAULT);
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/* initialize the CPU */
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cpu_init();
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}
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