You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.4 KiB
63 lines
1.4 KiB
/* |
|
* 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. |
|
*/ |
|
|
|
/** |
|
* @ingroup boards_msbiot |
|
* @{ |
|
* |
|
* @file |
|
* @brief Board specific implementations for the MSB-IoT board |
|
* |
|
* @author Fabian Nack <nack@inf.fu-berlin.de> |
|
* |
|
* @} |
|
*/ |
|
|
|
#include "board.h" |
|
|
|
static void leds_init(void); |
|
|
|
void board_init(void) |
|
{ |
|
/* initialize the CPU */ |
|
cpu_init(); |
|
|
|
/* initialize the boards LEDs */ |
|
leds_init(); |
|
} |
|
|
|
/** |
|
* @brief Initialize the boards standard LEDs (RED, YELLOW, GREEN) |
|
* |
|
* The LED initialization is hard-coded in this function. As the LEDs are soldered |
|
* onto the board they are fixed to their CPU pins. |
|
* |
|
* The LEDs are connected to the following pins: |
|
* - LED RED: PB8 |
|
* - LED YELLOW: PB14 |
|
* - LED GREEN: PB15 |
|
*/ |
|
static void leds_init(void) |
|
{ |
|
/* enable clock for port GPIOB */ |
|
periph_clk_en(AHB1, RCC_AHB1ENR_GPIOBEN); |
|
|
|
/* set output speed to 50MHz */ |
|
LED_PORT->OSPEEDR &= ~(0xF0030000); |
|
LED_PORT->OSPEEDR |= 0xA0020000; |
|
/* set output type to push-pull */ |
|
LED_PORT->OTYPER &= ~(0x0000C100); |
|
/* configure pins as general outputs */ |
|
LED_PORT->MODER &= ~(0xF0030000); |
|
LED_PORT->MODER |= 0x50010000; |
|
/* disable pull resistors */ |
|
LED_PORT->PUPDR &= ~(0xF0030000); |
|
|
|
/* turn all LEDs off */ |
|
LED_PORT->BSRRL = 0xC100; |
|
}
|
|
|