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boards/udoo: cleaned up LED handling

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This commit is contained in:
Hauke Petersen 2016-03-01 16:33:22 +01:00
parent 593ad5b223
commit 007f717f2c
2 changed files with 10 additions and 39 deletions
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39
boards/udoo/board.c
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2014 Freie Universität Berlin * Copyright (C) 2014-2016 Freie Universität Berlin
* *
* This file is subject to the terms and conditions of the GNU Lesser * 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 * General Public License v2.1. See the file LICENSE in the top level
@ -18,43 +18,14 @@
* @} * @}
*/ */
#include <stdio.h> #include "cpu.h"
#include "board.h" #include "board.h"
#include "periph/gpio.h"
void led_init(void);
void board_init(void) void board_init(void)
{ {
/* initialize the CPU */ /* initialize the CPU */
cpu_init(); cpu_init();
/* initialize the on-board Amber "L" LED @ pin PB27 */
/* initialize the boards LEDs */ gpio_init(LED_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
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;
} }

10
boards/udoo/include/board.h
View File

@ -33,16 +33,17 @@ extern "C" {
* @{ * @{
*/ */
#define LED_PORT PIOB #define LED_PORT PIOB
#define LED_PIN PIO_PB27 #define LED_BIT PIO_PB27
#define LED_PIN GPIO_PIN(PB, 27)
/** @} */ /** @} */
/** /**
* @name Macros for controlling the on-board LEDs. * @name Macros for controlling the on-board LEDs.
* @{ * @{
*/ */
#define LED_ON LED_PORT->PIO_ODSR |= LED_PIN #define LED_ON (LED_PORT->PIO_SODR = LED_BIT)
#define LED_OFF LED_PORT->PIO_ODSR &= ~LED_PIN #define LED_OFF (LED_PORT->PIO_CODR = LED_BIT)
#define LED_TOGGLE LED_PORT->PIO_ODSR ^= LED_PIN; #define LED_TOGGLE (LED_PORT->PIO_ODSR ^= LED_BIT)
/* for compatability to other boards */ /* for compatability to other boards */
#define LED_GREEN_ON LED_ON #define LED_GREEN_ON LED_ON
@ -53,7 +54,6 @@ extern "C" {
#define LED_RED_TOGGLE /* not available */ #define LED_RED_TOGGLE /* not available */
/** @} */ /** @} */
/** /**
* @brief Initialize board specific hardware, including clock, LEDs and std-IO * @brief Initialize board specific hardware, including clock, LEDs and std-IO
*/ */