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boards/udoo: cleaned up LED handling
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2014 Freie Universität Berlin
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* Copyright (C) 2014-2016 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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@ -18,43 +18,14 @@
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* @}
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*/
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#include <stdio.h>
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#include "cpu.h"
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#include "board.h"
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void led_init(void);
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#include "periph/gpio.h"
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void board_init(void)
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{
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/* initialize the CPU */
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cpu_init();
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/* initialize the boards LEDs */
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led_init();
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}
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/**
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* @brief Initialize the boards on-board LED (Amber LED "L")
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*
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* The LED initialization is hard-coded in this function. As the LED is soldered
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* onto the board it is fixed to its CPU pins.
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*
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* The LED is connected to the following pin:
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* - LED: PB27
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*/
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void led_init(void)
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{
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/* enable PIO control of pin PD27 */
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LED_PORT->PIO_PER = LED_PIN;
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/* set pin as output */
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LED_PORT->PIO_OER = LED_PIN;
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/* enable direct write access to the LED pin */
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LED_PORT->PIO_OWER = LED_PIN;
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/* disable pull-up */
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LED_PORT->PIO_PUDR = LED_PIN;
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/* clear pin */
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LED_PORT->PIO_CODR = LED_PIN;
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/* initialize the on-board Amber "L" LED @ pin PB27 */
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gpio_init(LED_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
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}
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@ -33,16 +33,17 @@ extern "C" {
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* @{
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*/
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#define LED_PORT PIOB
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#define LED_PIN PIO_PB27
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#define LED_BIT PIO_PB27
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#define LED_PIN GPIO_PIN(PB, 27)
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/** @} */
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/**
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* @name Macros for controlling the on-board LEDs.
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* @{
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*/
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#define LED_ON LED_PORT->PIO_ODSR |= LED_PIN
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#define LED_OFF LED_PORT->PIO_ODSR &= ~LED_PIN
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#define LED_TOGGLE LED_PORT->PIO_ODSR ^= LED_PIN;
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#define LED_ON (LED_PORT->PIO_SODR = LED_BIT)
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#define LED_OFF (LED_PORT->PIO_CODR = LED_BIT)
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#define LED_TOGGLE (LED_PORT->PIO_ODSR ^= LED_BIT)
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/* for compatability to other boards */
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#define LED_GREEN_ON LED_ON
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@ -53,7 +54,6 @@ extern "C" {
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#define LED_RED_TOGGLE /* not available */
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/** @} */
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/**
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* @brief Initialize board specific hardware, including clock, LEDs and std-IO
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*/
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