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boards/nucleo-f091: unified LED defines

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This commit is contained in:
Hauke Petersen 2016-03-11 18:04:26 +01:00
parent 74cea9a3ff
commit 000fae0e17
1 changed files with 3 additions and 30 deletions
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33
boards/nucleo-f091/board.c
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@ -19,40 +19,13 @@
*/
#include "board.h"
#include "cpu.h"
static void leds_init(void);
#include "periph/gpio.h"
void board_init(void)
{
/* initialize the boards LEDs */
leds_init();
/* initialize the CPU */
cpu_init();
}
/**
* @brief Initialize the boards on-board LEDs
*
* 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 green LED is connected to pin PA5
*/
static void leds_init(void)
{
/* enable clock for port GPIOA */
RCC->AHBENR |= RCC_AHBENR_GPIOAEN;
/* set output speed to 50MHz */
LED_GREEN_PORT->OSPEEDR |= 0x00000c00;
/* set output type to push-pull */
LED_GREEN_PORT->OTYPER &= ~(0x00000020);
/* configure pin as general output */
LED_GREEN_PORT->MODER &= ~(0x00000c00);
LED_GREEN_PORT->MODER |= 0x00000400;
/* disable pull resistors */
LED_GREEN_PORT->PUPDR &= ~(0x00000c00);
/* turn all LEDs off */
LED_GREEN_PORT->BRR = 0x00c0;
/* initialize the boards LEDs */
gpio_init(LED0_PIN, GPIO_DIR_OUT, GPIO_NOPULL);
}